CN100473058C - Generating and implementing a communication protocol and interface for high data rate signal transfer - Google Patents

Generating and implementing a communication protocol and interface for high data rate signal transfer Download PDF

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CN100473058C
CN100473058C CN 01822583 CN01822583A CN100473058C CN 100473058 C CN100473058 C CN 100473058C CN 01822583 CN01822583 CN 01822583 CN 01822583 A CN01822583 A CN 01822583A CN 100473058 C CN100473058 C CN 100473058C
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rate
implementing
communication
protocol
transfer
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CN 01822583
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CN1543734A (en )
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B·斯蒂尔
G·A·威利
Q·邹
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高通股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/36Network-specific arrangements or communication protocols supporting networked applications involving the display of network or application conditions affecting the network application to the application user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72522With means for supporting locally a plurality of applications to increase the functionality
    • H04M1/72527With means for supporting locally a plurality of applications to increase the functionality provided by interfacing with an external accessory
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation, e.g. WAP [Wireless Application Protocol]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks
    • Y02D70/20Techniques for reducing energy consumption in wireless communication networks independent of Radio Access Technologies
    • Y02D70/26Techniques for reducing energy consumption in wireless communication networks independent of Radio Access Technologies in wearable devices, e.g. watches, glasses

Abstract

在使用分组结构链接在一起的通信路径上用于在主机和客户机之间传送数字数据的数据接口,形成用于传送一组预先选择的数字控制和显示数据的通信协议。 On a communication path using packet structures linked together a data interface for transferring digital data between a host and a client, to form a communication protocol for transmitting data a pre-selected set of digital control and display. 信号协议由链路控制器使用,用于产生、发送、并接收形成通信协议的分组,并且将数字数据组成一个或多个类型的数据分组,其中至少一个驻留在主机装置中并通过通信路径耦合至客户机。 Signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, wherein the at least one residing in the host device through the communications path coupled to the client. 接口在短程“串行”类型的数据链路上提供了成本合算的、低功率的、双向的高速数据传送机制,它使自己能用微型连接器和细的可弯曲电缆来实现,它们在将诸如可佩带显示器这样的显示元件连接到便携式计算机和无线通信装置时尤其有用。 In the short-range interface provides a "serial" type of data link cost-effective, low power, high speed bidirectional data transfer mechanism, which can make their own miniature connectors and thin flexible cable can be achieved, they will such as a wearable display is especially useful when such a display element is connected to the portable computer and a wireless communication apparatus.

Description

用于高数据速率信号传送的通信协议和接口的产生和实现 Generating and implementing communication protocols and interfaces for communicating high data rate signals

发明背景 BACKGROUND OF THE INVENTION

I. 发明领域 I. Field of the Invention

本发明涉及以高数据速率在主机通信装置和客户机音频/视频显示装置之间传送信号的数字信号协议和过程。 The present invention relates to a high data rate communication host device and a client audio / video signals between a digital transmission signal protocol and process display means. 本发明尤其涉及一种用低功率高数据速率的传送机制将多媒体或其它类型的数据从无线装置传送到微显示器单元或其它显示装置的技术。 The present invention particularly relates to a multimedia or other types of data transfer mechanism using a low power high data transfer rate from the wireless device to the unit, or other microdisplay technologies display device.

II. 相关技术 II. Related Technology

计算机、电子游戏相关的产品、以及各种视频技术(例如,DVD和高清晰度的VCR)在过去几年大大进步,即使在包括某类文本时,也能将具有更高分辨率的静态、视频、视频点播、以及图形图像显现给这种设备的终端用户。 Computers, electronic game related products, and various video technologies (for example, DVD and high-definition VCR) much progress over the past few years, even when including some text, but also can have a higher resolution still, video, video on demand, and graphics images appear to the end user of such devices. 这些进步又要求使用较高分辨率的电子观看装置,譬如高清晰度视频监视器、HDTV监视器、或专用图像投射元件。 These advances in turn require the use of higher resolution electronic viewing devices such as high definition video monitors, HDTV monitors, or specialized image projection elements. 为了为终端用户创建更真实的、内容丰富的、或真实的多媒体体验,使用了这种可视图像与高清晰度或髙质量的音频数据的组合,譬如当使用CD类型的声音再现、DVD、以及其它也具有相关音频信号输出的装置时。 In order for end users to create a more realistic, content rich, or true multimedia experience, this uses a combination of visual images and audio data or high-definition quality Gao, such as when using CD type sound reproduction, DVD, and other devices also having associated audio signal output time. 此外,为了仅将音频显现给终端用户,开发了高移动性、高质量的声音系统和音乐传输机制, 譬如MP3放音机。 In addition, in order to show only the audio to end users, the development of highly mobile, high quality sound systems and music transport mechanisms, such as MP3 cassette player.

在典型的视频显现情况下,视频数据一般用当前技术来传送,传送速率最好为慢和中等,在每秒一到十千比特的数量级上。 Under typical video presentation, the video data is generally transmitted with the current technology, the transmission rate is preferably slow and medium in the one to ten kilobits per second magnitude. 然后,该数据或被缓冲或被存储在瞬变或较长期限的存储装置中,为了延后的(稍后)在期望观看装置上的显示。 Then, the data in the storage means or buffer or transient or longer term, for delayed (later) stored in the display of a desired viewing device. 例如, 为了接收或发送以数字再现一图像时有用的数据,图像可以"通过"或用互联网来传送,使用驻留在带有调制解调器或互联网连接装置的计算机上的程序。 For example, to receive or transmit useful when reproducing a digital image data, the image may be "pass" or using the Internet to transmit, using a program resident on a computer with a modem or Internet connection device. 当使用诸如配有无线调制解调器的便携式计算机、或无线个人数据助理(PDA)、或无线电话这样的无线装置时,类似的传送也会发生。 When used with a wireless modem, such as a portable computer, or a wireless personal data assistant (PDA), or a wireless device such as a wireless telephone, similar transfer can occur.

数据一旦被接收,就为了回放而被本地存储在包括外部存储装置在内的存储 Once the data is received, it is to be played back in the local storage includes a storage device including an external storage

元件、电路或装置中,譬如RAM或闪存。 Element, circuit, or device, such as RAM or flash memory. 根据数据数量和图像分辨率,回放可以相对快地开始,或者在较长延时后被显示。 The amount of data and the image resolution, the playback may begin relatively quickly, or displayed after a longer delay. 也就是说,在某些情况下,图像显现对于很小和低分辨率的不需要许多数据的图像允许某种程度的实时回放,或允许使用某类缓冲,以便在小延时后显现一些素材,而更多的素材被传送。 That is, in some cases, the image appears for very small and does not require many of the low-resolution image data allows a certain degree of real-time playback, or to allow the use of certain types of buffer, in order to show some of the material after a small delay and more material is transferred. 假定传送链路中没有障碍,那么一旦显现开始,传送对于观看装置的终端用户而言就是合理透明的。 Transmission link is assumed that there is no obstacle, once the presentation start transmitting means in terms of the end user is viewing a reasonable transparent. 用于创建或静态图像或运动视频的数据通常用多种已知技术之一被压縮,譬 For creating one or still images or moving video data is typically compressed using a variety of known techniques, Pi

如由联合图像专家组(JPEG)、运动图像专家组(MPEG)、以及媒体、计算机和通信工业中为了加速通信链路上的数据传送的其它著名标准组织或公司所规定的技术。 As by the Joint Photographic Experts Group (the JPEG), Moving Picture Experts Group (the MPEG), and media technology, computer, and communications industries for other well-known standards organizations or companies in the acceleration data transmission on the communication link specified. 这能通过使用较少数量的比特来传送给定量的信息而更快地传送图像或数据。 This can use a smaller number of bits to transfer a given amount of information transmitted or the image data faster.

一旦数据被传送到诸如计算机这样的"本地"装置或其它装置,所产生的信息是未压縮的(或用专门解码播放机播放)并且准备好基于相应可用的显示分辨率和控制要素的适当显示。 Once the data is transferred to a "local" or other device such as a computer, the generated information is uncompressed (or play with a special decoding players) and ready to be used based on the corresponding display resolution and control elements suitable display. 例如,用X乘Y像素的屏幕分辨率表示的典型计算机视频分辨率一般从低达480x640,经过600x800 —直到1024x1024,然而也可以或根据期望或根据需要而使用多种其它分辨率。 For example, a typical computer video resolution Y by the screen resolution pixels indicated by X in general from as low as 480x640, through 600x800 - up to 1024x1024, however, or may be used as desired or necessary, a variety of other resolutions.

图像显现也受到图像内容以及给定视频控制器操纵图像的性能的影响,该性能用预定义的色彩电平或色彩深度(用于产生色彩的每像素比特)和密度来表示,并且可以使用任何附加的开销比特。 The image visualized by the image content and also given video controllers to manipulate the image that affect performance, the performance of a predefined color levels or color depth (bits per pixel used to generate colors) and density expressed, and may be any additional overhead bits. 例如,典型的计算机显示会期望任何地方从约为8到32每像素比特或更多来显示各种色彩(阴影和色度),然而也会遇到其它值。 For example, a typical computer display would expect anywhere from about 8 to 32 bits per pixel or more displays various colors (chromaticity and shaded), although other values ​​are encountered.

从上述值可以看见,给定的屏幕图像要求从2. 45兆比特(Mb)到约为33. 55 Mb 的任何地方传输数据,分别从最低到最高的典型分辨率和深度的范围上。 It can be seen from the above value, a given screen image is required to transfer data from anywhere 2.45 Megabits (Mb) to around 33. 55 Mb of, respectively, from the lowest to highest typical resolutions and depth range. 当以每秒30帧的速率观看视频或运动类型的图像时,所需的数据量约为每秒73.7到1006 兆比特(Mbps),或约为每秒9.21到125.75兆比特(MBps)。 When viewing video or motion type images at a rate of 30 frames per second, the required data is about 73.7 to 1006 megabits per second (Mbps), or around 9.21 to 125.75 megabits per second (MBps). 此外,人们可能期望结合图像一起显现音频数据,譬如对于多媒体显现而言,或作为分开的高分辨率音频显现,譬如CD质量音乐。 In addition, it may be desirable to combine the image appear together with audio data, for example, in terms of multimedia show, or appear as a separate high resolution audio, such as CD-quality music. 也可以使用交互指令、控制或信号的附加信号处理。 Interactive instructions may also be used, additional signal processing or control signals. 这些选项的每一个都添加了更多要被传输的数据。 Each of these options have been added more data to be transmitted. 在任何情况下,当人们为了创建内容丰富的体验而期望将高质量或高分辨率的图像数据以及高质量的音频信息或数据信号传输到终端用户时,在显现元件以及用于提供这种数据类型的源或主机装置之间要求高数据传送速率链路。 In any case, when the people in order to create a content rich experience and the desired high quality or high resolution image data and high quality audio information or data signals to an end user, appear in the data element and for providing such a high data transfer rate link is required between the type of source or host device.

每秒约为115千字节(KBps)或920千字节(Kbps)的数据速率可由现代串行接口常规处理。 About 115 kilobytes per second (KBps) or 920 kilobytes (Kbps) data rate by some modern serial interfaces conventional treatment. 其它诸如USB串行接口这样的接口可以提供速率高达12MBps的数据传送,而诸如用电气和电子工程师协会(IEEE) 1394标准配置的专用高速传输会发 Other interfaces such as USB serial interfaces can provide data transmission rates of up to 12MBps, such as configuration with the 1394 Institute of Electrical and Electronics Engineers (IEEE) will send a dedicated high-speed transmission

生在50到100MBps的数量级上。 Born on the order of 50 to 100MBps. 不幸的是,这些速率达不到上述讨论的期望高数 Unfortunately, these rates are not up to the high expectations discussed above number

据速率,所构想的上述高数据速率用于将来无线数据装置和服务,用于为激励便携式视频显示器或音频装置提供高分辨率的、内容丰富的输出信号。 Data rate, high data rates contemplated for future wireless data devices and services for providing high resolution excitation portable video display or an audio device, content rich, output signals. 此外,这些接口要求使用大量用于操作的主机或系统以及客户机软件。 In addition, these interfaces require the use of host or system and client software to operate a large number of. 它们的软件协议堆栈也创建了大量不期望的开销,尤其当考虑移动无线装置或电话应用时。 Their software protocol stacks also create a lot of unwanted overhead, especially when the mobile wireless devices or telephone applications considered. 而且, 一些这样的接口使用了庞大电缆,它们对于面向高度审美的移动应用而言太笨重并且不令人满意,增加成本的复杂连接器,或者仅仅是消耗了太多功率。 Furthermore, some of these interfaces using a large cable, they are cumbersome for highly aesthetic oriented mobile applications and is not satisfactory, the cost of increasing the complexity of the connector, or simply consume too much power.

还有其它熟知的接口,譬如模拟视频图形阵列(VGA)接口、数字视频交互式(DVI)接口或千兆比特视频接口(GVIF)。 There are other known interfaces such as the Analog Video Graphics Array (VGA) port, a digital video interactive (DVI) interface or Gigabit Video Interface (GVIF). 前两个是并行类型的接口,它们以较高的传输速率处理数据,但也使用笨重的电缆并消耗在若干瓦特数量级上的大量功率。 The first two are parallel type interfaces which process data at higher transfer rates, but also to use heavy cables and consume large amounts of power on the order of several watts. 这两种特性都不能用于便携式消费者电子装置。 Both characteristics can not be used in portable consumer electronic devices. 即使第三种接口也消耗太多功率并使用了昂贵或庞大的连接器。 Even the third interface consumes too much power and uses expensive or bulky connectors.

对于某些上述接口,以及非常高速率的数据系统/协议或与用于固定安装计算机设备的数据传送相关的传送机制而言,存在另一个主要的缺点。 For some of the above interfaces data system, a very high rate and / or protocol transfer mechanisms associated with data transfers for fixed installation computer equipment, there is another major drawback. 为了提供期望数据传送速率,也要求大量功率和/或高电流电平下的操作。 In order to provide the desired data transfer rates also requires a large amount of power in operation and / or high current levels. 这大大减少了这种技术对于高度移动的面向消费者的产品的有用性。 This greatly reduces the usefulness of this technique for highly mobile consumer oriented products.

一般而言,为了用诸如光纤类型的连接和传送元件等选择对象来提供这种数据传送速率,那么相对于对于实际商用面向消费者的产品所期望的而言,也要求一 In general, to connect with and transfer elements such as optical fibers and the like to select an object to provide such types of data transfer rate, then with respect to the actual commercial consumer oriented product is desired, it also requires a

些引入复杂度和成本的附加转换器和元件。 These complexity and cost of the introduction of additional converters and elements. 除了至今为止的光学系统的一般昂贵特性之外,它们的功率要求和复杂度阻碍了轻量、低功率、便携式应用的一般使用。 In addition has generally expensive characteristics of the optical system until the outside, their power requirements and complexity hinders lightweight, low power, portable applications generally used. 便携式或移动应用工业中所缺乏的是一种为高度移动终端用户提供高质量显现体验的技术,无论是基于音频、视频或是多媒体。 Portable or mobile applications industry is a lack of experience providing high-quality appearance for highly mobile end-user technology, whether based audio, video or multimedia. 也就是说,当使用便携式计算机时,如无线电话、PDA、或其它高度移动通信装置或设备,当前使用的视频或音频显现系统或装置完全不能以期望的高质量水平传递输出。 That is, when using portable computers, wireless phone, PDA, or other highly mobile communication devices or equipment, the current video or audio device or system used to show a desired quality can not be fully transmitted to the output level. 通常,所察觉的缺乏的质量是不能获得传送高质量显示数据所需的高数据速率的结果。 Typically, the perceived lack of quality can not be obtained the desired results of high quality display transfer data at high data rates. 因此,需要一种新的传送机制来增加提供数据的主机装置以及将输出显现给终端用户的客户机显示装置或元件之间的数据通量。 Therefore, a new transfer mechanism is needed to increase the host device and provide data to show the output end user data throughput between the client display device or element.

摘要 Summary

本发明的实施例针对上述缺陷、以及本领域现有的其它缺陷,其中开发了一种新的协议和数据传送机制,用于以高数据速率在主机装置和接收客户机装置之间 Embodiments of the invention address the above defects, as well as other deficiencies of the prior art which has developed a new protocol and data transfer mechanism for high data rate between a host device and a client device receiving

传送数据。 Transferring data.

本发明实施例的优点在于,提供了一种用于数据传送的技术,它具有低复杂度、低成本、高可靠性、适用于使用环境、并且非常稳健,而仍然很灵活。 Advantage of embodiments of the present invention is to provide a technique for data transmission, it has a low complexity, low cost, high reliability, suitable for the environment, and is very robust, while remaining very flexible.

本发明的实施例针对移动数字数据接口(Mobile Digital Data Interface), Embodiments of the invention the data for a Mobile Display Digital Interface (Mobile Digital Data Interface),

用于在一条通信路径上以高速率在主机装置和客户机装置间传送数字数据,该通信路径使用了多个和一系列分组结构,它们连接在一起以形成用于在主机和客户机装置之间传送一组预先选定的数字控制和显现数据的通信协议。 For transferring digital data at a high rate between a host device and a client device over a communication path, the communication path using packet structures and a plurality of series, which are connected together to form a host device and a client of a set of communication protocols between the transmission of digital control and presentation data preselected. 信号通信协议或链路层由主机或客户机链路控制器的物理层所使用。 Signal communications protocol or link layer is used by a physical layer of host or client link controllers. 驻留在主机装置中的至少一个链路控制器通过通信路径或链路与客户机装置耦合,并且用于产生、发送、并且接收形成通信协议的分组,并且将数字显示数据组成一种或多种类型的数据分组。 At least one link controller residing in the host device or a communication link with the coupling path through the client device, and for generating, transmitting, and receiving packets forming the communications protocol, and to form digital display data is composed of one or more types of data packets. 接口提供了主机和客户机之间的双向信息传送。 Interface provides bi-directional transfer of information between the host and client.

在本发明的还有一些方面,至少一个客户机链路控制器、或客户机接收机部署在客户机装置中,并且通过通信路径或链路与主机装置耦合。 In still other aspects of the invention, the at least one client link controller, or client receiver deployed in the client device and coupled to the communication link or path through the host device. 客户机链路控制器也配置为用于产生、发送、并且接收形成通信协议的分组,并且将数字显示数据组成一种或多种类型的数据分组。 Client link controller is also configured to generate, transmit, and receive packets forming the communications protocol, and to form digital display data composed of one or more types of data packets. 一般而言,主机或链路控制器为了处理指令中所用的数据分组或某种类型的信号准备和询问处理而使用状态机,但可以使用较慢的通用处理器来操纵数据和通信协议中所用的某些较不复杂的分组。 Generally, the host or link controller for processing data packets used in commands or certain types of signal preparation and inquiry processing using a state machine, but a slower general purpose processor to manipulate data and a communication protocol used some of the less complex packets. 主机控制器包括一个或多个差分线路驱动器;而客户机接收机包括与通信路径耦合的一个或多个差分线接收机。 The host controller comprises one or more differential line drivers; while the client receiver comprises one or more differential line receivers coupled to the communication path.

分组在主机和客户机装置间传送的媒体帧内组合在一起,媒体帧具有预定义的固定长度,带有不同可变长度的预定数量的分组。 Grouped together in a media frame between the host and client device transmitted media frames having a predefined fixed length with a predetermined number of packets of different variable lengths. 分组各包括一个分组长度字段、 一个或多个分组数据字段、以及一个循环冗余码校验字段。 Each packet includes a packet length field, one or more packet data fields, and a cyclic redundancy check field. 子帧报头分组在来自主机链路控制器的其它分组的传送开始时被传送或被定位。 Sub-frame Header Packet is transferred or positioned at the transmitting other packets from the host link controller begins. 为了在要显现给用户的前向链路上将视频类型数据和音频类型数据分别从主机传送到客户机,通信协议使用一种或多种视频流类型分组和音频流类型分组。 In order to be transferred before the link presented to the user on the video type data and audio type data, respectively, from the host to a client, the communication protocol using one or more Video Stream type packets and Audio Stream type packets. 通信协议使用一种或多种反向链路封装类型分组将数据从客户机装置传送到主机链路控制器。 Communication protocol using one or more Reverse Link Encapsulation type packets for transferring data from the client device to the host link controller.

为了占据没有数据的前向链路传输期间,主机链路控制器产生填充符(Filler) 类型分组。 In order to occupy the absence of data, the host link controller generates filler (Filler) during link type packet to transmit. 通信协议使用多个其它分组类传送视频信息。 A plurality of other communication protocol used to transmit video information packet types. 这种分组包括色图、比特块传输、位图区域填充、位图模式填充、以及透明色使能类型分组。 Such packets include Color Map, bit block transfers, Bitmap Area Fill, Bitmap padding, and a transparent type color enabled packet. 通信协议用用户定义的流类型分组来传送接口用户定义的数据。 Communication protocol packet stream type defined to transmit user interface to user-defined data. 通信协议用键盘数据和指示装置数据类型分组来将数据传入传出与所述客户机装置相关的用户输入装置。 Keyboard communication protocol and a pointing device data packet to a data type associated with the outgoing data into the client device a user input device. 通信协议 letter of agreement

用链路关闭类型分组来终止在所述通信路径任一方向上的数据传送。 A Link Shutdown type packet to terminate the data transfer in either direction in the communication path.

通信路径一般包括或使用带有一系列四根或多根导线以及一个屏蔽的电缆。 Typically comprises the use of a communication path with a series of four or more conductors and a shield of the cable. 在某些实施例中,链路控制器包括USB数据接口,电缆使用USB类型的接口以及其它导线。 In certain embodiments, the link controller includes a USB data interface, a USB cable, and the other type of interfacing wires. 此外,可以根据需要而使用印刷电路或可弯曲导线。 Further, the printed circuit may be used as desired or bendable wire.

为了确定所述客户机能够通过所述接口提供何种类型的数据和数据速率,主机链路控制器向客户装置请求显示性能信息。 In order to determine the client what type of data and data rates can be provided via the interface, the host link controller to the display performance information of the client device requests. 客户机链路控制器用至少一个显示性能类型分组将显示或显现性能传送至主机链路控制器。 Client link controllers with at least a display performance of the display or show the type of performance of the packet to the host link controller. 通信协议使用多个传送模式,各允许在给定时间段上并行传送最大比特数不同的数据。 A plurality of transfer modes using a communication protocol, each allowing the transfer of different maximum number of parallel data bits over a given period of time. 这些传送模式在数据传送期间动态可调,并且在反向链路上不需使用与在前向链路上所用的相同的模式。 These transfer modes are dynamically adjustable during transfer of data, and without the use of the same pattern as the previous link is used on the reverse link.

在本发明一些实施例的其它方面,主机装置包括无线通信装置,如无线电话、 In other aspects, the host device of some embodiments of the present invention includes a wireless communication device, such as a wireless telephone,

无线PDA、或其中部署了无线调制解调器的便携式计算机。 Wireless PDA, or a portable computer which is deployed wireless modem. 典型客户机装置包括便携式视频显示器,如微显示装置,以及/或者便携式音频显现系统。 A typical client device comprises a portable video display such as a micro-display device, and / or a portable audio system appear. 而且,主机可以使用存储装置或元件来存储要被显现给客户机装置用户而被传送的显现或多媒体数据。 Furthermore, the host may use storage means or elements to store the multimedia data to be visualized or visualized to the client device the user is transmitted.

附图简述 BRIEF DESCRIPTION

下面参考附图描述了本发明的进一步特性和优点,以及本发明各种实施例的结构和操作。 Described with reference to the drawings Further characteristics and advantages of the present invention, and the structure of the present invention, various embodiments and operations. 在附图中,相同的标号一般表示相同的、功能相似的、且/或结构相似的元件或处理步骤,参考标号中最左位上的数字表示元件第一次出现所在的附图。 In the drawings, like reference numbers generally indicate identical, functionally similar, and / or structurally similar elements or processing steps, reference numeral designations represent the left-most digit drawing in which the first element once.

图la说明本发明可以在其中工作的基本环境,包括结合便携式计算机而使用的微显示装置。 FIG la illustrate the present invention in a basic environment which can work in conjunction with a portable computer including a micro-display device used.

图lb说明本发明可以在其中工作的基本环境,包括结合无线收发器而使用的微显示装置和音频显现元件。 FIG. Lb illustrate the present invention can be basic environment in which the work, including a wireless transceiver is used in conjunction with the micro-display device and audio elements appears.

图2说明带有主机和客户机互连的移动数字数据接口(Mobile Digital Data Interface)的总概念。 Figure 2 illustrates the overall concept of a Mobile Digital Data Interface (Mobile Digital Data Interface) with a host and client interconnection.

图3说明用于实现从客户机装置到主机装置的数据传送的分组结构。 3 illustrates an apparatus for implementing the packet from the client configuration data received from the host device.

图4说明了类型一I和类型U接口的物理数据链路导线上主机和客户机之间传递的MDDI链路控制器以及信号类型。 4 illustrates an MDDI link controller and the types of signals passed between the physical data link conductors for Type I and Type U interfaces a host and client.

图5说明了类型一II、 II和IV接口的物理数据链路导线上主机和客户机之间 5 illustrates a type II between, on the physical data link conductors II and IV interfaces the host and client

传递的MDDI链路控制器以及信号类型。 MDDI link controller and the transmission signal type.

图6说明用于实现接口协议的帧和子帧的结构。 6 illustrates the structure of frames and subframes for the implementation of the interface protocol. 图7说明用于实现接口协议的一般分组结构。 7 illustrates the general structure of packets used to implement the interface protocol.

图8说明子帧报头分组的格式。 FIG 8 illustrates the format of a Sub-frame Header Packet.

图9说明填充符分组的格式和内容。 9 illustrates the format and contents of a Filler Packet.

图io说明视频流分组的格式。 FIG io illustrates the format of a Video Stream Packet.

图11说明图10的视频数据格式描述符的格式和内容。 11 illustrates the format and contents of the Video Data Format Descriptor of FIG. 10. 图12数据的分组和未分组格式的使用。 And you not are using the packet format of a packet 12 data. 图13说明音频流分组的格式。 FIG 13 illustrates the format of an Audio Stream Packet.

图14说明数据的字节对齐的和分组的PCM格式的使用。 Figure 14 illustrates the use of PCM format data bytes and packet aligned.

图15说明用户定义的流分组的格式。 FIG 15 illustrates the format of a User-Defined Stream Packet.

图16说明色图分组的格式。 FIG 16 illustrates the format of a packet of color charts.

图17说明反向链路封装分组的格式。 FIG 17 illustrates the format of a Reverse Link Encapsulation Packet.

图18说明显示性能分组的格式。 FIG 18 illustrates the performance of the display format of the packet.

图19说明键盘数据分组的格式。 FIG 19 illustrates the format of a Keyboard Data Packet.

图20说明指示装置数据分组的格式。 FIG 20 illustrates the format of the pointing device data packet.

图21说明链路关闭分组的格式。 21 illustrates the format of a Link Shutdown Packet.

图22说明显示请求和状态分组的格式。 FIG. 22 illustrates the display format of the Request and Status Packet.

图23说明比特块传输分组的格式。 FIG 23 illustrates the format of the bit block transfer packet.

图24说明位图区域填充分组的格式。 FIG 24 illustrates the format of a Bitmap Area Fill Packet.

图25说明位图模式填充分组的格式。 FIG 25 illustrates the format of a bitmap pattern fill packet.

图26说明通信链路数据信道分组的格式。 FIG 26 illustrates the format of a packet data channel communication link.

图27说明接口类型切换请求分组的格式。 FIG 27 illustrates the format of a Interface Type Handoff Request Packet.

图28说明接口类型确认分组的格式。 28 illustrates the format of an Interface Type Acknowledge Packet.

图29说明执行类型切换分组的格式。 29 illustrates the format of a Perform Type Handoff Packet.

图30说明前向音频信道使能分组的格式。 FIG 30 described before so that the packet format that allows the audio channels.

图31说明反向音频采样率分组的格式。 31 illustrates the format of FIG Reverse Audio Sample Rate Packet.

图32说明数字内容保护开销分组的格式。 FIG 32 illustrates the format of a Digital Content Protection Overhead Packet.

图33说明透明色使能分组的格式。 33 illustrates the format can be transparent so that the color of the packet.

图34说明往返延时测量分组的格式。 FIG 34 illustrates the format of a packet round trip delay measurement.

图35说明往返延时测量分组期间事件的时序。 Figure 35 illustrates the timing of events during the round-trip delay measurement packet.

图36说明用于本发明的CRC发生器和检验器的示例实现。 36 illustrates an example of a CRC generator and checker of the present invention is implemented. 图37a说明了当发送数据分组时图36装置的CRC信号时序。 FIG. 37a illustrates a data transmission packet when the timing of CRC signals for the apparatus 36 of FIG. 图37b说明了当接收数据分组时图36装置的CRC信号时序。 FIG 37b illustrates a data packet when receiving the timing of CRC signals for the apparatus 36 of FIG. 图38说明了没有内容的典型服务请求的处理步骤。 38 illustrates processing steps typically no content service requests.

图39说明了链路重启动序列开始后、带有链路开始内容的典型服务请求的处 Figure 39 illustrates the link restart sequence begins, for a typical service request with the contents of the link at the beginning

理步骤。 Processing steps.

图40说明了怎样用DATA-STB编码发送数据序列。 Figure 40 illustrates how the transmission data DATA-STB encoding sequence.

图41说明了在主机处从输入数据产生DATA和STB信号、然后在客户机处恢 FIG. 41 illustrates the generation of the DATA and STB signals from input data at the host, and then restored at the client

复数据所用的电路系统。 Multiplexing circuitry used for data.

图42说明用于实现本发明实施例的驱动器和终端电阻器。 FIG 42 illustrates an example of achieving the drivers, and termination resistors embodiment of the present invention. 图43由客户机用于保证来自主机服务的安全以及由主机用于提供这种服务的 43 by the client to ensure the security service from the host and by the host to provide such services

步骤和信号电平。 Steps and signal levels.

图44说明Data0、其它数据线(DataX)和选通线(Stb)间转变的相对间隔。 44 illustrates Data0, changing the relative spacing between other data lines (DataX), and the strobe lines (Stb). 图45说明当主机在传送分组后禁用主机驱动器时可能发生的响应延时。 45 illustrates when the response delay may occur when a host disables the host driver after the transfer packet. 图46说明当主机启用主机驱动器来传送分组时可能发生的响应延时。 FIG. 46 illustrates the delay in response may occur when a host enables the host driver to transfer a packet. 图47说明主机接收机输入端处被传送的数据时序以及选通脉冲前沿和后沿间的关系。 47 illustrates the timing relationship between the data at the host receiver input transmitted strobe pulse and leading and trailing edges.

图48说明由反向数据时序形成的交换特性和相应的客户机输出延时。 Figure 48 illustrates switching characteristics formed by the reverse data timing and corresponding client output delay.

图49说明信号处理步骤的高电平图,可以通过它用状态机来为本发明实现同步。 Figure 49 illustrates a signal processing step of high level, it can be a state machine of the present invention is to synchronize.

图50说明使用MDDI的系统中前向和反向路径上信号处理遇见的一般延时数 50 illustrates a general delay Number MDDI systems used meet the front and on the reverse path to the signal processing

图51说明边际往返延时测量。 51 illustrates marginal round trip delay measurement.

图52说明反向錄路数据速率变化。 Figure 52 illustrates the reverse channel data rate changes recorded.

图53说明反向速率除数相对前向链路数据速率的值的图表表示。 FIG 53 illustrates a graph of the value of the link data rate of the forward and reverse rate divisor relative to FIG. 图54a和54b说明在接口操作中着手的步骤。 FIGS. 54a and 54b proceed to a step in the interface operation instructions.

图55说明用于实现本发明实施例的驱动器、接收机、处理器和状态机的综述。 FIG 55 illustrates an implement Summary of the receiver, a processor and a state machine embodiment of the present invention drives the embodiment.

实施例的详细说明 Detailed description of embodiments

I.综述 I. Overview

本发明的一般目的是如下所述地提供一种移动显示数字接口(MDDI),它导致 A general object of the present invention is to provide a mobile display digital interface as described below (MDDI), which results in

或提供效能成本划算的、低功耗的传送机制,允许主机装置和显示装置之间短距离通信链路上的高速或非常高速的数据传送,该通信链路使用"串行"类型数据链路或信道。 Or to provide cost-effective performance, low-power transfer mechanism, allowing a very high speed or high-speed data transfer over a short-range communication link between a host device and a display device, the communication link uses a "serial" type of data link or channel. 这个机制能用微型连接器和细的可弯曲电缆来实现,它们在把诸如可佩带微显示器(目镜或投影机)这样的显示元件或装置连接到便携式计算机、无线通信装置、或娱乐装置时尤其有效。 This mechanism can be miniature connectors and thin flexible cable be achieved, especially when they are put, such as wearable micro-displays (eyepiece or projector) of such elements or display device is connected to portable computers, wireless communication devices, or entertainment devices effective.

本发明可用于多种场合,以高速率将大量数据、 一般是音频、视频或多媒体应用程序、从产生或存储这类数据的主机或源装置传递或传送到客户机显示器或显现装置。 The present invention can be used in a variety of applications, the large amount of data at a high rate, usually audio, video or multimedia applications, a host or source device transfer of such data is generated or stored, or transferred from the client to display or presentation device. 下述的典型应用是将数据或从便携式计算机或从无线电话或调制解调器传送到视觉显示器,如小视频屏幕或可佩带微显示器设备,譬如以包含小投射镜和屏幕的目镜或头盔的形式。 The following is a typical application of the data transferred to or from a portable computer or a wireless telephone or modem from a visual display, such as a small video screen or a wearable micro-display device, such as a helmet or eyepiece comprises a small projection mirror and the screen form.

MDDI的特性或属性在于,它们独立于专门显示技术。 MDDI characteristics or attributes that are separate from the special display technology. 这是一种高度灵活的机帝IJ,用于以高速率传送数据,而不考虑该数据的内部结构以及它实现的数据或指令的功能方面。 This is a highly flexible machines IJ Emperor, a high rate of data transfer, regardless of the internal structure of the data and the function data or instructions it implements. 这允许调节被传送的数据分组的时序,适合特定显示装置或某种装置的唯一显示器要求的特质,或者满足某些AV系统的组合音频和视频的要求。 This allows the timing of data packets being transmitted, the display characteristics for a specific display device or some means unique requirements or to meet the requirements of combined audio and video of some of the AV system. 接口是完全显示元件或不可知的客户机装置,只要按照选定的协议。 Interface element is fully displayed or client device agnostic, as long as according to the selected protocol. 此外,合计串行链路数据或数据速率可以随着若干幅度数量级而改变,使通信系统或主机装置设计者能优化费用、功率要求、客户机装置复杂度以及显示装置更新速率。 Furthermore, aggregate serial link data or data rate may vary with the magnitude of several orders of magnitude, so that the communication system or host device designer to optimize the cost, power requirements, client device complexity of the machine and a display device update rates.

给出的数据接口主要用于在"有线"信号链路或小电缆上传送大量高速数据。 Presented data interface for transfer of data on a large number of high-speed "wired" signal link or small cable. 然而, 一些应用也可以利用无线链路,包括基于光学的链路,只要它被配置成使用与为接口协议开发的分组和数据接口相同的分组和数据接口,并且为了实际可用而维持以足够低功耗传送的期望级别。 However, some applications can utilize a wireless link, including optical based links, provided it is the same configured to use the interface protocol developed and packet data interface and packet data interface, and in order to maintain the actual available at a sufficiently low desired level of power transfer.

II.环境 II. Environment

图la和lb中可见一种典型的应用,其中所示的便携式或膝上型计算机100 以及无线电话或PDA装置102分别与显示装置104和106以及音频再现系统108 和110 —起传送数据。 FIGS. La and lb can be seen in a typical application where a portable or laptop computer 100 and wireless telephone illustrated or PDA device 102 and the display device 104 and 106, respectively, and an audio reproduction system 108 and 110 - Transfer data from. 无线装置可以当前正在接收数据或者前面已经在存储元件或装置中存储了确定数量的多媒体类型数据,用于稍后显现而由无线装置的终端用户观察和/或聆听。 The wireless device can be currently receiving data or a determined number of previously stored multimedia type data in a memory element or device for later observed visualized by the end user of the wireless device and / or listening. 由于典型的无线装置大多数时间是用于为话音和简单文本通信, 因此它具有用于将信息传送至装置102用户的小显示屏和简单音频系统(扬声器)。 Since a typical wireless device is used for most of the time for the voice and simple text communications, it has for communicating information to the user apparatus 102 small display screen and simple audio system (speakers).

计算机100具有较大的屏幕和仍然不足的外部声音系统,并且仍然不如诸如高清晰度电视或电影屏幕等其他多媒体显示装置。 Computer 100 has a larger screen and still inadequate external sound system, and still not as good as other multimedia such as high definition television or movie screens and other display devices. 为了说明目的使用了计算机 For purposes of illustration using computer

100,然而本发明也可以使用其他类型的处理器、交互式视频游戏或消费者电子装置。 100, however, the present invention also may use other types of processors, interactive video games, or consumer electronics devices. 计算机ioo可以使用、但不限于无线调制解调器或用于无线通信的其他内建装置,或者根据需要用电缆或无线链路与这种装置相连。 Ioo computer may be used, but is not limited to a wireless modem or other built-in device for wireless communication, or connected to such devices as needed cable or a wireless link.

这使显现更复杂或"丰富"的数据并不是有效或令人愉快的经历。 This makes the show more complex or "rich" data is not effective or enjoyable experience. 因此,工业上发展了其他机制和装置,来将信息显现给终端用户并且提供最低级别的期望享受或肯定的经历。 Therefore, the industrial development of other mechanisms and devices to show the information to end users and provide a minimum level of desired enjoyment or positive experience.

如上所述,已经开发了或当前正在开发若干类型的显示装置来将信息显现给装置100的终端用户。 As described above, it has been developed or several types of display devices are currently being developed to show the information to the end user of the apparatus 100. 例如, 一个或多个公司已经开发了可佩带目镜组,为显现视觉显示而在装置用户的眼睛前方投射图像。 For example, one or more companies have developed sets of wearable eyepiece for visual display projected image appears in front of the eyes of the user device. 当被正确放置时,这种装置有效地"投射"虚拟图像,如用户眼睛所观察到的,这远大于提供视觉输出的元件。 When correctly positioned such devices effectively "project" a virtual image elements, such as the user's eye is observed, which is much larger than provide visual output. 也就是说, In other words,

非常小的投射元件使用户眼睛能"看见"更大比例的图像,可能带有典型的LCD 屏幕等等。 Very small projection element allows the user's eye can "see" the image of a greater proportion of the possible with typical LCD screens and the like. 其他显示装置可包括、但不限于,小LCD屏幕或各种平板显示元件、投射镜和用于在表面上投射图像的显示驱动器,等等。 Other display devices may include, but are not limited to, small LCD screens or various flat panel display elements, projection lenses and display drivers for projecting images on a surface, and the like.

也可能有附加元件,与用于将输出显现给另一用户的无线装置102或计算机100的使用相连或相关,或与反过来将信号传送至别处或存储它们的另一装置相连。 There may also be additional elements, and for using the output of the wireless device apparent to another user connected to the computer 100 or 102 or associated, or connected to the turn signal is transmitted or stored elsewhere thereof to another device. 例如,数据为了稍后的使用可以以光学形式存储在闪存内,例如使用可写CD 媒体或像在磁带记录机或类似装置中那样在磁性媒体上。 For example, the data may be used later for optically stored in the flash memory, for example, a writable CD or image media tape recorder or the like as in the magnetic media.

此外,许多无线装置和计算机现在具有内建的MP3音乐解码性能以及其他高级声音解码器和系统。 In addition, many wireless devices and computers now have a built-in MP3 music decoding performance as well as other advanced sound decoders and systems. 便携式计算机用CD和DVD回放性能作为一般规则, 一些具有用于接收预先记录的音频文件的小的专用闪存阅读器。 Portable computer with CD and DVD playback performance as a general rule, some of which have pre-recorded audio files to receive a small dedicated flash memory readers. 具有这种性能的问题在于,数字音乐文件许诺高度增加的特征丰富经历,但只有当解码和回放过程可以并驾齐驱时。 This performance issues that digital music files promise a highly increased feature rich experience, but only if the decoding and playback process can keep pace with time. 对于数字音频文件来说也是一样。 The same is true for digital audio files.

为了协助声音再现,图la中示出外部扬声器108,也可以伴随着附加元件, 譬如子低音扬声器、或者用于前向和后向声音投射的"环绕声"扬声器。 To assist in sound reproduction, FIG la shows an external speaker 108, may be accompanied by additional elements, such as sub-woofer, or to the front and rear sound projection to "surround" speakers. 与此同吋, 扬声器或耳机110被表示为内建式的,以支持图lb的微显示装置的帧或机制。 At the same inch, speakers or earphones 110 are indicated as built-in type, mechanism of micro-display device or a frame to support lb of FIG. 可以得知,可以使用其他音频或声音再现元件,包括功率放大或声音整形装置。 Can be known, other audio or sound reproduction elements, including power amplification or sound shaping devices.

如上所述,在任何情况下,当人们期望在一条或多条通信链路112上将高质量或高分辨率的图像数据以及高质量音频信息或数据信号从数据源传送至终端用户时,需要高数据速率。 As described above, in any case, when one desires to transmit data from a source to an end user in the one or more communication links 112 on high quality or high resolution image data and high quality audio information or data signals, a high data rates. 也就是说,由于当前传送机制未达到一般期望的高数据速率,因此传送链路112无疑是前述数据通信的潜在瓶颈并且限制系统性能。 That is, since current transfer mechanisms generally does not reach the desired high data rate, the transmission link 112 is undoubtedly a potential bottleneck and limit the data communications system performance. 例如, 如上所述,为了如1024乘1024像素的较高图像分辨率,以及每像素24 — 32比特 For example, as described above, such as 1024 by 1024 pixels for higher resolution images, and each pixel 24 --32 bit

的色深和30fps的数据速率,数据速率可以接近超出336 Mbps的速率或更大。 Color depth and data rate of 30fps, the data rates can approach rates exceed 336 Mbps or more. 此夕卜,这种图像可以作为多媒体显现的一部分而被显现,多媒体显现包括音频数据以及处理交互式游戏或通信的潜在附加信号,或者各种命令、控制或信号,进一步增加了质量或数据以及数据速率。 This evening Bu, such an image appears as part of multimedia is visualized, the multimedia show comprises potentially additional signals dealing with interactive gaming and audio data or communications, or various commands, controls, or signals, further increasing the mass or data, and data rate.

同样可见,建立数据链路所需的较少电缆或互连意味着与显示器相关的移动装置较易使用,并且更可能由较大的用户基础而采用。 Also seen, less established or interconnecting cable means associated with the mobile device required to display the data link easier to use and are more likely employed by a larger user base. 在通常用多个装置来建立完全音频一视觉经历时这尤其正确,并且当显示器和音频输出装置的质量水平增加时更加正确。 This is especially true in the normal visual experience to establish a full audio with a plurality of devices, and is more accurate when increasing the quality level of the displays and audio output devices.

不幸的是,较高的数据速率超出当前可用于传送数据的技术。 Unfortunately, the higher data rates exceed current technology available for transferring data. 需要一种技术, 用于在显现元件和数据源之间的数据传送链路或通信路径上以较高的速率传送数据,它允许以持续的低(较低)的功率、轻量、以及尽可能简单和经济的电缆结构。 Need for a technique for transmitting data at a higher rate in the data transfer link or communication path between the source element and the data show, it allows sustained low (er) power, light weight, and do the cable may be simple and economical structure. 申请人己开发了一种新的技术,或方法和装置,来达到这些及其它目标,以允许移动站的阵列、便携式或甚至固定位置装置以非常高的数据速率将数据传送至期望的显示器、微显示器或音频传送元件,而保持期望的低功耗和复杂度。 Applicants have developed a new technique, or method and apparatus, to achieve these and other goals to allow an array of mobile, portable, or even fixed location means at a very high data rate to transfer data to a desired display, micro-display or audio transfer elements, while maintaining a desired low power consumption, and complexity.

III.高速数字数据接口系统结构 III. High Digital Data Interface System Architecture

为了创建并有效地利用新的装置接口,设计了一种信号协议和系统结构来用低功率信号提供非常高的数据传送速率。 In order to create and efficiently utilize a new device interface, a signal protocol design and system architecture to provide a very high data transfer rate using low power signals. 该协议基于分组和公共帧结构,或者连接在一起以形成协议的结构,用于将一组预先选定的数据或数据类型以及与接口上施加的指令或操作结构一起被传送。 The protocol packet and common frame structure, or structures linked together to form a protocol, to be transmitted based on a preselected set of data or data types along with the instruction or operation is applied on the interface structure together.

A.综述 A. Overview

由MDDI链路连接或在MDDI链路上通信的装置被称为主机和客户机,客户机一般是某些类型的显示装置。 Or the MDDI link connecting the communication apparatus is called the host and client over the MDDI link, the client is usually some type of display device. 如主机所允许的那样,自主机至显示器的数据以前向方向(称为前向话务或链路)传播,自显示器至主机的数据以反向方向(称为反向话务或链路)传播。 As the host as allowed spread (forward traffic or link formerly known) data from the host to the display before the direction from the host to the display data in the reverse direction (referred to as a reverse traffic or link) spread. 这在图2所示的基本配置中得到说明。 This is illustrated in the basic configuration shown in FIG. 图2中,主机202用双向通信信道206与客户机204相连,双向通信信道包括前向链路208和反向链路210。 In FIG. 2, the host 202 206 connected by a bidirectional communication channel with the client 204, a bidirectional communication channel comprises a front link 210 and reverse link 208. 然而,这些信道由一组公共导线形成,导线的数据传送在前向和反向链路操作间被有效地切换。 However, these channels are formed by a common set of wires, the wire data transfer is effectively switched between the forward or reverse link operations.

如其它地方所讨论的,主机包括能得益于本发明的使用的若干类型的装置之一。 As discussed elsewhere, the host comprises one of several types can benefit from using the apparatus of the present invention. 例如,主机202可以是形式为手持、膝上型或类似移动计算装置的便携式计算机,它可以是PDA、寻呼装置、或许多无线电话或调制解调器之一。 For example, host 202 may be in the form of a handheld, laptop, or similar mobile computing device is a portable computer, which may be a PDA, a paging device, or one of many wireless telephones or modems. 与此同时,客 At the same time, passenger

户机204可以包括用于将信息显现给终端用户的多种有用装置。 Client 204 may include a variety of useful information to show the end-user devices. 例如,目镜或眼镜中结合的微显示器、帽子或头盔中内建的投射装置、车辆中嵌入的小屏幕或均匀全息元件,如窗户或挡风玻璃、或者各种扬声器、耳机或用于显现高质量声音或音乐的音响系统。 For example, the eyepiece or glasses bonded microdisplay, hat or helmet projection device built into a vehicle embedded small screen or even holographic element, such as a window or windshield, or various speaker, headphone, or to show a high sound system quality sound or music. 然而,本领域的技术人员很容易知道,本发明并不限于这些装置,市场上可能还有其它装置为了使用而被提出,它们或者用存储和传输或者用回放时的显现而试图为终端用户提供高质量的图像和声音。 However, those skilled in the art will readily appreciate that the present invention is not limited to these devices, there may be other devices have been proposed for use on the market, or they provide end users with the storage and transmission appears during playback or use attempt high-quality images and sound. 本发明在增加各种装置间的数据吞吐量以提供实现期望用户体验所需的高数据速率中是有用的。 The present invention is in increasing the data throughput between various devices to provide the desired user experience to achieve the high data rates required are useful.

B.接口类型 Interface Type B.

MDD接口被视作针对通信和计算机工业中所发现的五种或更多稍微不同的物理接口类型。 MDD interface is regarded as available for five communications and computer industries or more found in slightly different physical interface types. 这些在这里被简单地标为类型一I、类型一II、类型一III、类型一IV 和类型一U。 Here these are simply marked as a type I, a type II, category a III, type IV and type a a U.

类型一I接口被配置成6线(导线)接口,适用于移动或无线电话、PDA、电子书、电子游戏、以及便携式媒体播放机,如CD播放机或MP3播放机,以及相似类型的电子消费技术。 Type I interface is configured as a 6-wire (conductor) interface suitable for mobile or wireless phone, PDA, e-books, electronic games, and portable media players, such as CD players, or MP3 players, and similar types of electronic consumer technology. 类型一U接口被配置成8线(导线)接口,适用于膝上型电脑、 笔记本、或台式个人计算机以及类似的装置或应用,它们不需要显示器迅速刷新并且没有内建式的MDDI链路控制器。 Type U interface is configured as an 8-wire (conductor) interface for laptop, notebook, or desktop personal computers and similar devices or applications, they do not need to refresh the display quickly and without a built-in MDDI link control device. 通过使用附加的双线通用串行总线(USB)接口, 这种接口类型也是可区分的,USB接口在提供大多数个人计算机中的现有操作系统或软件支持中尤其有用。 By using an additional two-wire Universal Serial Bus (USB) interface, this interface type is also distinguishable, USB interface is particularly useful in providing most personal computers in the existing operating system or software Support. 例如,类型一U接口也可以用于仅有USB模式中,其中显示器仅具有USB连接器,它与计算机或类似装置上的标准USB端口相连。 For example, a Type U interfaces can also be used only USB mode, which displays only a USB connector, which is connected to a standard USB port of a computer or the like.

类型一II、类型一III和类型—IV接口适用于高性能显示器或装置,并且使用带有附加双绞线类型导线的较大更复杂的电缆来为数据信号提供适当的屏蔽和低损耗传输。 A type II, category and a type III -IV interfaces suitable for high performance displays or devices and use larger more complex with additional twisted-pair cable type conductors to provide the appropriate shielding and low loss transmission of a data signal.

类型一I接口传递的信号可包括显示、视频、控制和有线信令信息,并且一般用于不需要高分辨率全速率视频数据的装置。 Transmitting a Type I signal interface may include a display, video, control cable and signaling information, and generally do not need a means of high-resolution full-rate video data. 这种类型的接口主要用于诸如移动无线装置这样的装置,其中USB主机在用于信号连接和传输的装置内一般无效。 This type of interface is primarily used for such devices such as mobile wireless devices, where a USB host is generally ineffective in signal connection and means for transmission. 在这种配置中,移动装置是MDDI主机装置,并且起到控制来自主机的通信链路的"主人"的作用,它一般将显示数据发送至客户机(前向话务或链路)。 In this configuration, the mobile device is a MDDI host device, and acts as a communication link from the host control of the "master", which generally display data to the client (forward traffic or link).

在这种接口中,主机通过将特殊指令或分组类型发送至客户机而允许在主机处接收来自客户机(反向话务或链路)的通信数据,客户机允许其在特定持续时间接管总线并且将数据作为反向分组发送至主机。 In this interface, a host by sending a special command or packet type to the client to allow the receiving communication data, the client from the client (reverse traffic or link) at the host allowing it to take over the bus at a particular time duration and transmits the data to the host as reverse packets. 这在图3中得到说明,其中使用被称 This is illustrated in FIG. 3, referred to using

为封装分组(下面讨论)的分组类型来提供传输链路上反向分组的传输,从而创建反向链路。 As encapsulation packet (discussed below) to provide the transmission of a packet type of the packet transmitted on the reverse link, creating the reverse link. 为轮询数据的显示而分配给主机的时间间隔由主机预先确定并且基于各专门应用的要求。 Polling data display time allocated to the host by the host and the predetermined interval based on the requirements of each specific application. 这种类型的半双工双向数据传输在USB端口不可用于来自客户机的 This type of half-duplex bi-directional data transfer from the USB port is not available for the client

信息或数据传输时尤其有利。 Especially advantageous when transmitting information or data.

类型U接口传输适用于膝上型电脑和台式机应用的信号,其中USB接口得到大量主板或其它硬件的广泛支持,并由操作系统软件支持。 Type U interface transfer signal applied to laptops and desktop applications, which are widely supported by a large number of USB interface board or other hardware by the operating system software support. 添加的USB接口的使用能够使用"即插即用"特征和简易应用配置。 Using a USB interface can be added using the "plug and play" features and easy application configuration. USB的包括也允许指令、状态、音频数据等等的通用双向流动,而指向客户机装置的音频和视频数据可以用双绞线以低 USB also allows include commands, status, audio data, etc. General bidirectional flow, while pointing to the audio and video data with a client device may be twisted at a low

功率和高速进行传输。 Power and high-speed transmission. 如下所述,功率可以用其它电线传输。 As described below, power can be transmitted by other wires. 使用USB接口的本发明实施例允许在一组导线上的高速传输而同时主要实现USB连接上的信令和控制, 这在不使用时可被关闭且消耗极少的功率。 USB interface using embodiments of the present invention allow high-speed transmission over a set of wires while simultaneously achieved mainly signaling and control on the USB connection, which can be closed when not in use and consumes little power.

USB接口是现代个人计算机设备非常广泛使用的标准,且USB接口的细节及其操作在本领域中是众所周知的,因此在此不再说明。 USB interface is a standard modern personal computer equipment is very widely used, and the USB interface details of their operation are well known in the art, and therefore will not be described here. 对于USB接口而言,主机和显示器之间的通信遵从通用串行总线规范,修订版2. 0。 For the USB interface, communication between the host and the display of a Universal Serial Bus Specification, Revision 2.0. 在使用类型U接口的应用中, 其中USB是主要的信令信道且可能是话音返回信道,任选地主机可以通过MDDI串行数据信号轮询客户机。 In applications using the Type U interface where USB is the primary signaling channel and possibly a voice return channel, optionally, MDDI host can poll the client for the serial data signal.

为了支持完全运动视频,HDTV类型或类似高分辨率性能的高性能显示器要求约为1. 5 Gbs速率的数据流。 In order to support full-motion video, HDTV type or similar high-performance displays require high resolution performance of about 1. 5 Gbs rate data streams. 类型一II接口通过并行发送2比特来支持高数据速率,类型一III接口通过并行发送4比特来支持,而类型一IV接口并行传送8比特。 Type-II interface supports transmitting 2 bits in parallel by the high data rate, a type III interfaces to support 4 through a parallel transmission bits, while a Type IV interfaces 8-bit parallel transfer. 由MDDI使用的协议允许各类型一I、 II、 III或IV主机通过协商可被使用的最高数据速率而与任何类型一I、 II、 III或IV客户机进行通信。 Protocol used by a MDDI allows each Type I, the highest data rate II, III or IV may be negotiated by the host and used to communicate with any of a type I, II, III or IV client. 可被称为最少可能装置的性能或可用特征被用来设置链路的性能。 Performance or available features may be referred to as the least possible means is used to set the performance of the link. 作为规则,即使对于主机和客户机都能使用类型一II、类型一III或类型一IV接口的系统来说,两者都作为类型一I接口而开始工作。 As a rule, even be able to use a type II, a type III or type IV interface for a system for host and client, and both began working as a Type I interface. 然后,主机确定目标客户机或显示器的性能,并且将切换或重新配置操作协商为或类型一II、类型一III,或类型—IV模式,这对于特定应用是适当的。 The host then determines the performance of the target client or display, and the handover or reconfiguration operation to negotiate or a type II, category III a, or -IV mode type, which is suitable for a particular application.

主机一般可能使用适当的链路层协议(下面进一步讨论)并且在任何时候降低为或在此重新配置操作至较慢的模式以节约功率,或者提高到较快的模式以支持较高速度的传输,如对于较高分辨率显示内容而言。 Typically, the host may use an appropriate link-layer protocol (discussed further below) and this is reduced to or reconfiguration operation to a slower mode to save power or to increase faster mode to support higher speed transmission at any time such as for higher resolution display content is concerned. 例如,当显示系统从诸如电池的功率源切换至AC电源时,或者当显示媒体的源切换至较低或较高的分辨率格式时, 或者这些或其它条件或事件的组合可被视作改变显示或数据传输模式的基础时,主 For example, when the display system switches from a power source such as a battery to AC power, or when the display is switched to the source media lower or higher resolution format, or a combination of these or other conditions or events may be considered altered the display or the underlying data transmission mode, the main

机可以改变显示模式。 Unit can change the display mode.

系统也能在一个方向用一种模式而在另一方向用另一种模式来传送数据。 The system can also be in a mode Into another mode data is transmitted in one direction in the other. 例如,类型—IV接口模式可被用于以高速率将数据传送至显示器,而当将数据从诸 For example, the type of interface mode -IV may be used to transfer data at a high rate to the display, and when the data from the various

如键盘或指示装置这样的外围设备传送至主机装置时,使用类型一i或类型u模式。 When a peripheral device such as a keyboard or a pointing device to the host device, using a type or type u-i.

C.物理接口结构 C. Physical Interface Structure

图4和5中示出用于建立主机和客户机装置间通信的装置或链路控制器的一 FIGS. 4 and 5 a shown for establishing between the host device and a client device or communication link controller

般配置。 Like configuration. 在图4和5中,MDDI链路控制器402安装在主机装置202中,而MDDI链路控制器404安装在客户机装置204中。 4 and 5, a MDDI link controller 402 installed in a host device 202, a MDDI link controller 404 and installed in a client device 204. 跟前面一样,主机202用包括一系列导线的双向通信信道406与客户机204相连。 As before, host 202 comprises a series of wire bi-directional communication channel 406 connected to a client 204 used. 如下所述,主机和客户机链路控制器都可以被制造成使用单个电路设计的集成电路,该电路设计可被设置、调节或编程以响应或主机控制器(驱动器)或客户机控制器(接收机)。 As described below, the host and client link controllers can be manufactured as an integrated circuit using a single circuit design, the circuit design can be set, adjusted or programmed to respond to a host or controller (driver) or a client controller ( receiver). 这提供了由单个电路装置的较大规模制造而引起的较低费用。 This provides a lower cost large scale manufacturing of a single circuit device caused.

在图4中,也示出USB主机装置401和USB客户机装置410,用于实现MDDI In Figure 4, also shows the USB host device 401 and a USB client device 410 for enabling MDDI

的类型U接口版本。 Type U interface version. 用于实现装置功能的电路和装置在本领域中熟知,并且这里不再说明。 Circuit means, and means for implementing the functions are well known in the art, and will not be described herein.

在图5中,MDDI链路控制器502安装在主机装置202'中,而MDDI链路控制器504安装在客户机装置204'中。 In FIG. 5, a MDDI link controller 502 is shown installed in a host device 202 ', and the MDDI link controller 504 is shown installed in a client device 204 & apos ;. 跟前面一样,主机202'用包括一系列导线的双向通信信道406与客户机204'相连。 With before, host 202 'comprises a series of bidirectional communication channel with the client 406 wire 204' is connected. 如前所述,主机和客户机链路控制器都可以用单个电路设计来制造。 As described above, the host and client link controllers can be manufactured using a single circuit design.

图4和5中也说明了主机和诸如显示装置这样的客户机之间在MDDI链路上传递的信号,或者所使用的物理导线。 FIGS. 4 and 5 also shows a display signal such as a host and a client apparatus between such transmitted over the MDDI link, or the physical conductors used. 从图4和5中可见,用于通过MDDI传输数据的主要通道或基站使用被标为MDDI—Date(H/-和MDDI—5"+/-的数据信号。这些信号的每一个都是低压数据信号,它们在电缆中一对差分电线上被传输。对于接口上发送的每个比特而言,或在MDDI_DataO对上,或在MDDI_Stb对上,仅有一种转变。 这使基于电压而非基于电流的传输机制,因此静态电流消耗接近于零。主机驱动MDDI—Stb信号至客户机显示器。 Each of these are low voltage signals and MDDI-5 "+/- data signals - can be seen in FIG. 4 and 5, the main channel or the base station for transmitting data through the MDDI labeled using the MDDI-Date (H / from data signals, which are transmitted over a differential pair of wires in the cable for each bit sent over the interface, the MDDI_DataO or in pairs, or on only one transition MDDI Stb. this allows the voltage based a transmission mechanism not current based, so static current consumption is nearly zero. drives MDDI-Stb signal the host to the client display.

虽然数据可以在MDDI一Data对上的前向和反向方向上流动,即它是双向传输通道,然而主机是数据链路的主人或控制者。 While data can flow in a MDDI Data on the forward and reverse directions on that it is a bidirectional transmission path, however, the host is the master or controller of the data link. 为了使噪声抗扰性最大,MDDI—DataO 和MDDI一Stb信号通道以差分模式工作。 In order to make the maximum noise immunity, MDDI-DataO and MDDI Stb signal channels operate in a differential mode. 这些线上信号的数据速率由主机发出的时钟速率确定,并且在约为l kbps到400 Mbps或更大的范围上是可变的。 Signal lines at a data rate clock rate determined by the master, and from about l kbps to 400 Mbps or greater extent is variable.

类型一II接口包含类型一I的数据对之上的一个附加数据对或导线或通道, 它被称为MDDI—Datal+/-。 Type-II interface contains one additional data type of a data of I or above the wire or channel, which is called MDDI-Datal +/-. 类型一III接口包含类型一II接口的数据对之上的两个附加数据对或信号通道,被称为MDDI—Data2+/-和MDDI—Data3+/-。 A Type III interface contains two additional data types II a data interface signal path to or above, is referred to and MDDI-Data2 +/- MDDI-Data3 +/-. 类型一IV接口包含类型一III接口的数据对之上的四个或更多附加数据对或信号通道,分别被称为MDDI_Data4+/-, MDDI_Data5+/-, MDDI—Data6+/-和MDDI_Data7+/-。 A Type IV interface contains four or more signal channels for additional data type or a data interface III above, are referred MDDI_Data4 +/-, MDDI_Data5 +/-, MDDI-Data6 +/-, and MDDI_Data7 +/-. 在每种上述接口配置中,主机用被命名为MDDI—Pwr和MDDI_Gnd的电线对或信号将功率发送至客户机或显示器。 In each of the above interface configurations, a host with named and MDDI-Pwr MDDI_Gnd wires to transmit signals or power to the client or display.

一般仅可用于类型U配置的一类传输是lffiDI USB连接或信号通道。 Usually only one type may be used for the transmission type configuration is U lffiDI USB connection or signal path. MDDI USB 连接包括用于在主机和客户机显示器间通信的次级通道。 MDDI USB connection comprises a secondary path between the host and client display in communication. 在某些应用中,以相对低的数据速率在主机和客户机间发送特定信息可能更为有利。 In some applications, a relatively low data rate to transmit specific information between the host and client may be more advantageous. 使用USB传输链路使没有带有USB主机或有限主机性能的MDDI链路控制器的装置能与配备了类型一U接口的MDDI兼容的客户机或显示器进行通信。 Of the device using a USB link MDDI link controller with no USB host or limited host capability it can be equipped with a type of the U-interface MDDI-compatible client or display to communicate. 可以在USB接口上被有效地传送到显示器的信息实例有:静态位图、数字音频流、指示装置数据、键盘数据、以及控制和状态信息。 Examples of information can be efficiently transmitted to the USB interface on the display are: static bitmaps, digital audio streams, pointing device data, keyboard data, and control and status information. 通过USB接口支持的所有功能也可以用主MDDI高速串行数据通道来实现。 You can also use the primary MDDI high-speed serial data channel is achieved by all the features supported by the USB interface. 尽管上述定义的数据(见下面的分组)可以在USB类型接口上被发送,然而以背对背形式链接数据的要求并不应用于这种USB接口,支持MDDI类型切换的分组使用也不应用于这种USB接口。 While the above-defined data (see packets below) may be transmitted on the USB interface type, however, requires a link back to back in the form of data is not applied to such a USB interface, supports the use of an MDDI packet switching type is not applicable to such USB interface.

下面,表1中按照接口类型说明了MDDI链路上主机和客户机(显示器)之间传递的信号概述。 The following Table 1 illustrates the overview of the interface type in accordance with a signal transmitted between the host and client (display) over the MDDI link.

表l Table l

<table>table see original document page 28</column></row> <table> <Table> table see original document page 28 </ column> </ row> <table>

用于实现上述结构和操作的电缆一般额定在1.5米长度的数量级上并且包含 Cables for achieving the above structure and operation is generally rated on the order of 1.5 meters in length and comprises

三个双绞导线对,各又是多股30 AWG电线。 Three twisted wire pairs, each is 30 AWG stranded wire. 箔屏蔽覆盖被包覆或者形成上述三根 A foil shield covering is coated, or the formation of the three

双绞线上,作为附加的排流线。 Twisted pair, as an additional drain wire. 双绞线和屏蔽排流导线在显示连接器内终止,其中该屏蔽与显示器(客户机)的屏蔽相连,并且存在覆盖全部电缆的绝缘层,这在本领 Twisted pairs and shield drain conductor terminate in the display connector, wherein the shield is connected with a display (client) shielding, and there is an insulating layer covering the entire cable, which in the art

域中是众所周知的。 Domain is well known. 导线如下配对:MDDI—Gnd与MDDI—Pwr; MDDI—Stb+与MDDI—Stb-; MDDI—DataO+与MDDI—Data0-; MDDI—Datal+与MDDI_Datal-;依此类推。 Conductor pair as follows: MDDI-Gnd with MDDI-Pwr; MDDI-Stb + and MDDI-Stb-; MDDI-DataO + with MDDI-Data0-; MDDI-Datal + and MDDI_Datal-; and so on. 额定电缆直径在3.0 ram的数量级上,且额定阻抗为85欧姆±10%, DC电阻额定为每1000 英尺110欧姆。 Nominal cable diameter 3.0 ram on the magnitude and nominal impedance of 85 ohms ± 10%, DC resistance rated at 110 ohms per 1000 feet. 信号传播速度应该额定为0. 66c,通过电缆的最大延时低于约8. 0纳秒。 Signal propagation speed should be rated at 0. 66c, the maximum delay through the cable less than about 8.0 nanoseconds.

D.数据类型和速率 D. Data Types and Rates

为了实现完全范围的用户体验和应用的有用接口,移动数字数据接口(MDDI) 支持各种显示器和显示信息、音频传感器、键盘、指示装置、及许多其它输入装置, 它们可被集成在移动显示装置中或者与移动装置、以及控制信息、以及它们的组合合作。 In order to achieve useful interface for a full range of user experiences and applications of, the Mobile Digital Data Interface (the MDDI) supports a variety of displays and display information, audio transducers, keyboards, pointing devices, and many other input devices that may be integrated in a mobile display device or with the mobile device, and the control information, and combinations thereof cooperation. MDD接口被设计成能够用最小数量的电缆或导线或在前向或在反向链路方向上提供主机和客户机间多种潜在类型的数据流往返。 MDD interface is designed to flow to and from a minimum number of cables or wires or provide data or forward the host and client in the direction of a reverse link between a variety of potential types. 同步流和异步流(刷新)都能得到支持。 Synchronous and asynchronous stream flow (refresh) can be supported. 只要合计数据速率小于或等于最大期望的MDDI链路速率,则许多数据类型的组合都是可能的。 As long as the aggregate data rate is less than or equal to the maximum desired MDDI link rate, then many combinations of data types are possible. 这些可以包括、但不限于下面表II和表III中列出的项。 These may include, but is not limited to entries in Table II below and are listed in Table III.

表II Table II

<table>table see original document page 29</column></row> <table> <Table> table see original document page 29 </ column> </ row> <table>

接口并不固定而是可延展的,以便它能为将来的系统灵活性而支持包括用户 The interface is not fixed but can be extended so that it can for future system flexibility and user support, including

定义的数据在内的多种信息"类型"的传输。 Variety of information including data defined "type" of the transmission. 要支持的数据的特定实例有:全运动视频,或者以全或部分屏幕位图字段的形式,或者以压縮视频的形式;用于保存功率并减少实现费用的低速率下的静态位图;各种分辨率或速率下的PCM或压缩视频数据;指示装置位置和选择;以及要被定义的性能的用户定义的数据。 Specific examples of data to be supported are: full-motion video, either in the form of a full screen bitmap fields or partially, or in the form of compressed video; to save power and reduce static bitmaps at low rates to achieve cost; PCM at a variety of resolutions or rates or compressed video data; pointing device position and selection; and definition of the performance data to be user-defined. 这种数据也可以和控制或状态信息一起被传送,用于检测装置性能或设置操作参数。 Such data may also be transmitted together with control or status information, or the performance of the device is provided for detecting operating parameters.

本发明在用于数据传输的领域中领先,包括但不限于:看电影(视频显示器和音频);使用带有有限个人观察(图形显示、有时结合视频和音频)的个人计算机; 或者在因特网上"冲浪";使用视频电话(双向低速率视频和音频)、用于静态数字照片的照相机、或用于捕获数字视频图像的摄像机;并且用于生产率提高或用蜂窝电话、智能电话或PDA的娱乐。 In the field of the present invention is used for data transmission in the lead, including but not limited to: watching a movie (video display and audio); limited use with a personal observation (graphics display, sometimes combined video and audio) of a personal computer; or on the Internet "surfing"; using a video phone (bi-directional low-rate video and audio), a camera for still digital pictures, or video camera for capturing digital video images; and for productivity gains or by cell phone, smart phone or PDA entertainment .

下述移动数据接口通过在一般被配置成有线或电缆类型链路的通信或传输链路上提供大量AV类型的数据来给出。 The following is given by the mobile data interface to provide a large number of types of AV data on generally configured wire or cable type link communication or transmission links. 然而,显而易见的是,如果能保持期望级别的传输,可以调节信号结构、协议、时序、或传输机制来提供形式为光学或无线媒体的链路。 However, it will be apparent that, if they can maintain a desired level of transmission signal structure, protocols, timing, or transfer mechanism could be adjusted to provide the form of an optical or wireless media link.

MDD接口信号为基本信号协议或结构使用被称为公共帧(CF)的概念。 MDD interface signals use the basic signal protocol or structure concept is called a common frame (CF) a. 使用公共帧后的理念是为同时的同步数据流提供同步脉冲。 Using the common frame concept is to provide a synchronization pulse for simultaneous isochronous data streams simultaneously. 显示装置可以将该公共帧用作时间接口。 The display device may be used as a common time frame interface. 低CF速率通过减少发射子帧报头的开销来增加信道效率。 Low CF rate by reducing the transmitted sub-frame header overhead to increase the channel efficiency. 反之,高CF 速率降低等待时间,并且允许音频采样的较小弹性数据缓冲。 Conversely, a high CF rate decreases the latency, and allows a smaller elastic data audio sample buffer. 本创造性接口的CF 速率动态可编程并且可被设为适用于特定应用中使用的同步流的许多值之一。 CF rate of the inventive interface is dynamically programmable and may be set to one suitable for a particular application using the value of the synchronization of a number of streams. 也就是说,该CF值根据期望被选定以最好地适合给定显示装置和主机配置。 That is, the CF value is selected as desired to best suit the given display device and host configuration.

同步数据流的每公共帧一般所需的字节数是可调并可编程的,它们很可能用于应用中,譬如对于表IV所示的头部安装好的微显示器。 The number of bytes per common frame synchronization is generally required for a data stream is adjustable and programmable, they are likely to be used in applications, such as shown in Table IV to the head mounted micro display.

表IV<table>table see original document page 30</column></row> <table> TABLE IV <table> table see original document page 30 </ column> </ row> <table>

用简单的可编程M/N计数器结构可以容易地获得每公共帧字节的部分计数。 Simple programmable M / N counter structure can be easily obtained for each part of a common frame byte count.

例如,通过传输2帧27个字节,各跟随着一个26字节的帧,从而实现每CF 26-2/3的计数。 For example, by transmitting two 27 bytes each followed by a 26 byte frame, in order to achieve counter 26-2 / 3 per CF. 可以选择较小的CF速率来产生每CF的整数字节数。 Smaller CF rate may be selected to produce an integer number of bytes per CF is. 然而, 一般而言, 用硬件实现简单的M/N计数器在实现本发明的部分或全部所用的集成电路芯片内需要的面积比较大的音频采样FIFO缓冲器所需的区域要小。 However, in general, to achieve a simple M / N counter in hardware required for implementation of the invention within some or all of an integrated circuit chip used in a relatively large area required for audio sample FIFO buffer area is smaller.

说明不同数据传输速率和数据类型影响的示例性应用是卡拉0K系统。 Illustrate the different data transfer rates and data types is the influence of karaoke 0K exemplary application system. 对于卡拉0K系统而言,系统用户与音乐视频节目一起唱歌。 For karaoke 0K system, system users to sing along with the music video program. 歌词显示在屏幕底部,因此用户知道要唱的歌词,以及歌曲的大致时间。 Lyrics appear at the bottom of the screen, so the user knows the approximate time to sing the lyrics, and the song. 这种应用需要带有不频繁的图形刷新的视频显示器,并且将用户的话音与立体声音频流混合。 Such applications require refresh with infrequent graphics video display, and the user's voice mixed with a stereo audio stream.

如果假定公共帧的速率为300Hz,那么各CF将包括:在到显示装置的前向链路上92160字节的视频内容和588字节的音频内容(立体声中,基于147个16比特采样),平均29.67(26-2/3)字节的话音从麦克风被送回至移动卡拉0K机器。 If it is assumed a common frame rate of 300Hz, then each CF will consist of: the forward link to the device 92,160 bytes of video content and 588 bytes of audio content display (stereo, based on 147 16-bit sampling), mean 29.67 (26-2 / 3) bytes of voice are sent back from a microphone to the mobile karaoke machine 0K. 异步分组在主机和显示器间被发送。 Asynchronous packets are sent between the host and display. 这包括最多768字节的图形数据(四分之一屏幕高度),并且小于其他各种控制和状态指令的约200字节(若干)。 This includes at most 768 bytes of graphics data (quarter-screen height), and less than about 200 bytes (several) other types of control and status commands.

表V示出数据怎样在卡拉0K实例的公共帧内分配。 Table V, shows how a common frame partitioned 0K example karaoke data. 所用的总速率被选定为约225 Mbps。 The total rate being used is selected to be about 225 Mbps. 略微高的速率226 Mbps允许传送约为每子帧另外400字节,这允许使用偶尔的控制和状态消息。 Slightly higher rate of 226 Mbps allows about transfer another 400 bytes per sub-frame, which allows the use of occasional control and status messages.

<table>table see original document page 31</column></row> <table>E.链路层 <Table> table see original document page 31 </ column> </ row> <table> E. Link Layer

用MDD接口高速串行数据信号传送的数据包括一一相连的时分复用分组流。 High-speed serial data signals transmitted by the data MDD interface comprises a time division multiplexed packet stream coupled to eleven. 即使当发射装置没有待发数据时,MDDI链路控制器也自动地发送填充符分组,从 Even when a transmitting device has no pending data, the MDDI link controller automatically sends filler packets, from

而保持分组流。 Packet flow is maintained. 简单分组结构的使用确保了视频和音频信号或数据流的可靠同步定时。 Using a simple packet structure ensures reliable synchronization timing of video and audio signals or data streams.

一群分组被包含在被称为子帧的信号元件或结构内, 一群子帧被包含在被称为媒体帧的信号元件或结构内。 A group of packets are contained within signal elements or structures referred to as sub-frame, a group of sub-frames are contained within signal elements or structures referred to as a media-frame. 子帧包含一个或多个分组,这取决于它们相应的大小和数据传输用途,媒体帧必须包含多一个的子帧。 Sub-frame contains one or more packets, depending on their respective size and data transfer uses, medium frame must contain one more sub-frames. 由本发明使用的协议提供的最 Provided by the protocol of the present invention is most

大子帧在232-1即4,294,967,295字节的数量级上,于是最大媒体帧大小变为在216-1即65, 535字节的数量级上。 In the subframe 232-1 large i.e. 4,294,967,295 bytes of magnitude, largest media-frame size then becomes on 65 216-1 i.e., 535 bytes of magnitude.

如下所述,包含唯一标识符的特殊报头分组出现在各子帧的开始处。 As described below, the special header packet contains a unique identifier appears at the beginning of each subframe. 该标识符也用于在启动主机和显示器间的通信时在客户机装置处捕获帧定时。 The identifier is also used to capture the frame timing at the client device when the machine starts communication between the host and display. 链路定时捕获在下面得到详述。 Link timing acquisition as elaborated below.

一般而言,当显示全运动视频时,显示屏每媒体帧被更新一次。 Generally, when displaying full-motion video, the display is updated once per media-frame. 显示器帧速率与媒体帧速率相同。 The display frame rate of the media-frame rate. 链路协议支持整个显示器上的全运动视频,或者由静态图像包围的全运动视频内容的仅仅一个小区域,这取决于期望的应用。 Link protocol supports full-motion video over an entire display, or just a small region of full-motion video content surrounded by a static image, depending on the desired application. 在某些低功率移动应用中,譬如査看Web网页或电子邮件,显示屏仅需偶尔被更新。 In some low-power mobile applications, such as viewing a Web page or e-mail, the display is updated only occasionally. 在那些情况下, 发射单个子帧然后关闭链路以使功耗最小是有利的。 In those cases, a single subframe and then transmitting a link off to minimize power consumption are advantageous. 接口也支持诸如立体显示这样的效应,并且处理图形的基元。 Interface also supports effects such as stereo display, and process graphics primitives.

子帧的存在使高优先级的分组能以周期性传输。 Subframe presence of the high priority packets can be transmitted periodically. 这允许同时的同步流与最小数量的数据缓冲共存。 This allows synchronization of the data stream with the minimum number of buffers simultaneously coexist. 这是本发明提供给显示过程的一个优点,允许多个数据流(视频、话音、控制、状态、指示装置等等的高速通信)本质上共享一条公共信道。 This is an advantage of the present invention to the display process, allowing multiple data streams (video, voice, control, status, pointing device like a high-speed communication) share a common channel essentially. 它用相对很少的信号传送信息。 It uses relatively few signaling information. 它也使显示技术专有动作能存在,譬如CRT监视器的垂直同步脉冲和消隐期间。 It also causes the display operation can present a proprietary technology, a CRT monitor vertical synchronizing pulse and blanking period such.

F.链路控制器 F. Link Controller

图4和5所示的MDDI链路控制器被制造成或仿真成完全数字实现,除了用于接收MDDI数据和选通信号的差分线接收机之外。 FIGS. 4 and 5 MDDI link controller shown in simulations to be manufactured or completely digital implementation, in addition to receive MDDI data and selected from the differential line receiver signal outside. 实现链路控制器的硬件不需要任何模拟操作或锁相环(PLL)。 Link controller hardware realization does not require any operation or analog phase locked loop (PLL). 主机和显示器链路控制器包含非常相似的功能,除了显示器接口包含用于链路同步的状态机之外。 Host and display link controllers contain very similar functions, in addition to a display interface comprising a state machine for link synchronization outside. 因此,本发明允许实践优点能创建被配置成主机或客户机的单个控制器设计或电路,这总的来说能减少链路控制器的制造成本。 Thus, the advantages of the practice of the present invention allows to create a single controller design or circuit that is configured to host or client, which can reduce the manufacturing cost in general for the link controller.

IV.接口链路协议 IV. Interface Link Protocol

A.帧结构 A. Frame structure

图6中说明了实现用于分组传输的前向链路通信的信号协议或帧结构。 In FIG. 6 illustrates an implementation for a packet before transmission signal protocol or frame structure of the communication link. 如图6 所示,信息或数字数据被组合成被称为分组的元素。 6, information or digital data is combined into an element is referred to as a packet. 多个分组依次组合在一起以形成"子帧",多个子帧依次组合在一起以形成"媒体"帧。 A plurality of packets are sequentially grouped together to form "subframe", a plurality of sub frames are sequentially combined together to form a "media" frame. 为了控制帧格式和子帧 To the control frame and subframe format

的传输,各子帧用特别预定义的分组开始,被称为子帧报头分组(SHP)。 Transmission, each sub-frame packet with a special predefined start, referred to as sub-frame Header Packet (SHP).

主机装置选择要为给定传输使用的数据速率。 Host device selects the data rate to be used for a given transfer. 该速率可以由主机装置根据主机的最大传输性能或由主机从源检取的数据、以及显示器或数据被发送至的其他装置的最大能力而动态地改变。 This rate can be changed dynamically by the host device in accordance with the maximum transmission performance of the host or from the host data retrieved from the source, and the maximum capacity of a display or other device to which data is transmitted.

受信客户机装置被设计为,或者能够与WDDI—起工作,或者发明的信号协议能由主机查询以确定它能使用的最大、或当前最大的数据传输速率,或者可能使用的缺省较低最小速率,以及所支持的可用数据类型和特性。 Trusted client device is designed to be, or to work with from WDDI- or signal protocol invention can be queried by the host to determine if it can use the maximum, or current maximum, data transfer rate, or may use a lower minimum default rate, and supported by the available data types and characteristics. 如下进一步所述,该信息可以用显示性能分组(DCP)来传输。 As further described below, the performance information may be displayed packet (DCP) for transmission. 客户机显示装置能够以预先选择的最小数据速率或者在最小数据速率范围内用接口与其他装置传输数据或者通信,主机将用该范围内的数据速率来进行询问以确定客户机装置的全部性能。 The client display device is capable of a minimum data rate preselected or interface with other devices transmitting data or communication, host data rate within this range to an inquiry within a minimum data rate range to determine the full performance of the client apparatus.

其他定义显示器的位图性质和视频帧速率性能的状态信息可以在状态分组中被传送至主机,使得主机能将该接口或配置为高效的或配置为实践上最佳,或者在任何系统限制内所期望。 Status bitmap information and the video frame rate performance properties other definitions may be transferred to the display in the status packet hosts, or such that the host can configure the interface to be configured to best efficient or practical, or within any system limit expected.

当前子帧中不存在要被传送的数据分组时,或者当主机不能以与为前向链路选定的数据传输速率保持同步的足够速率进行传输时,主机发送填充符分组。 It does not exist in the current sub-frame data packet to be transmitted, or when the host can not maintain a sufficient rate synchronous links to selected data transmission rate prior to transmission, the host sends filler packets. 由于各子帧用子帧报头分组开头,因此先前子帧的末尾包含正好填充先前子帧的一个分组(最有可能是填充符分组)。 Since each sub-frame by sub-frame header packet at the beginning, so the end of the previous sub-frame contains exactly fills the previous sub-frame of a packet (most likely a filler packet). 在缺乏承受每集分组的数据空间的情况下,填充符分组最可能是子帧中的最后一个分组,或者处于下一个前一子帧的末尾并且在子帧报头分组之前。 In the absence of a data packet receiving space of each episode, a filler packet will most likely be the last sub-frame of a packet, or at the end of a next previous sub-frame and before a sub-frame header packet. 主机装置中控制操作的任务是确保子帧中有足够的剩余空间,用于在该子帧内发送每个分组。 Task control operations in a host device to ensure that the sub-frame there is enough free space for the transmission of each packet in the subframe. 与此同时, 一旦主机装置启动数据分组的发送,主机必须能成功地完成帧内该尺寸的分组,而不招致数据的欠载运行状态。 At the same time, once a host device starts transmitting a data packet, the host must be able to successfully complete a packet of that size frame, without incurring a data under run condition.

在本发明实施例的一个方面,子帧传输具有两种模式。 In one aspect of the embodiment of the present invention, sub-frame transmission has two modes. 一个模式是用于发射实况视频和音频流的周期性子帧模式。 One mode is a periodic sub-frame mode used to transmit live video and audio streams. 在该模式中,子帧长度被定义为非零。 In this mode, the sub-frame length is defined as zero. 第二个模式是异步或非周期性模式,其中帧用于仅在新信息可用时将位图数据提供给显示装置。 The second mode is an asynchronous or non-periodic mode in which frames are used will be provided only when new information is available bit map data to the display device. 该模式通过在子帧报头分组中将子帧长度设为零而定义。 This mode is defined by a set to zero in the sub-frame length in the sub-frame header packet. 当使用周期性模式时,子帧分组接收可以在显示器己经与前向链路帧结构同步时开始。 When using the periodic mode, sub-frame packet reception may start synchronous link frame structure has a display front. 这对应于下面参考图49讨论的状态图定义的"同步中"状态。 This corresponds to the "sync" state discussed below with reference to FIG. 49 state diagram defined. 在异步非周期性子帧模式中, In the asynchronous non-periodic sub-frame mode,

接收在接收到第一子帧报头分组之后开始。 After receiving starts receiving the first sub-frame header packet. B.总分组结构 B. General packet structure

下面给出用于公式化由本发明实现的信令协议的分组格式或结构,紧记接口是可扩展的并且可以根据需要添加附加的分组结构。 Are given below for the packet format or structure of the signaling protocol implemented by the present invention is formulated, bear in mind that the interface is extensible and can add additional packet structure. 分组根据它们在接口中的功能被标记为、或者被分成不同的"分组类型",也就是说,根据它们传输的指令或数据。 Grouped according to their function in the interface is marked as, or divided into different "packet types", that is, instructions or data transmission based thereof. 因此,各分组类型表示用于操作被传输的分组和数据的给定分组的预定义的分组结构。 Therefore, each packet type denotes a packet structure for a given packet of the packet operation is predefined and transmitted data. 可以清楚看见,分组可能具有预先选择的长度或者根据它们相应的功能而具有可变或动态可变的长度。 Can be clearly seen, the packet length may have pre-selected according to their respective function or have variable or dynamically changeable lengths. 各种分组中所用的字节或字节值被配置成多比特(8 或16比特)的无符号整数。 Bytes or byte values ​​used in the various packets are configured as multi-bit (8 or 16 bits) unsigned integers. 表VI中以类型次序列出所使用的分组综述及其"类型" Table VI Summary of the packet to the type and order listed using the "Type"

表示。 Representation. 分组传输被视为有效的方向也被记下,以及它们是否用于类型一u接口。 Transmission packet is considered valid is also a note direction, and whether they are used in a type u interface.

表VI Table VI

<table>table see original document page 34</column></row> <table> <Table> table see original document page 34 </ column> </ row> <table>

<table>table see original document page 35</column></row> <table> <Table> table see original document page 35 </ column> </ row> <table>

分组具有公共基本结构或总的一组最小字段,包括分组长度字段、分组类型 Packets have a common basic structure or overall set of minimum fields comprising a Packet Length field, a Packet Type

字段、数据字节字段、以及CRC字段,这在图7中得到说明。 Field, Data Bytes field, and a CRC field, which is illustrated in FIG. 7. 如图7所示,分组长度字段包含形式为多比特或多字节值的信息,指定分组中比特总数,或者它在分组长度字段和CRC字段间的长度。 7, the Packet Length field contains information in the form of a multi-bit or-byte value to specify the total number of bits in the packet, or its length between the packet length field and the CRC field. 在本发明实例的优选实施例中,分组长度字段包含16比特即2字节宽的、无符号整数,它指定分组长度。 In a preferred example embodiment of the present invention, the packet length field contains 2 bytes that is 16 bits wide, unsigned integer, that specifies the packet length. 分组类型字段是另一个多比特字段,它指明分组内包含的信息类型。 The Packet Type field is another multi-bit field which designates the type of information contained within the packet. 在本发明实例的示例性实施例中,这是一个8比特即1字节宽的值,形式为8比特无符号整数,并且指定诸如显示性能、 切换、视频或音频流、状态等这样的数据类型。 In an exemplary embodiment of the present invention, examples of embodiment, this is an 8-bit or 1-byte wide value, in the form of 8-bit unsigned integer, and specifies such data performance, handoff, video or audio streams, status, such as a display Types of.

第三字段是数据字节,它包含作为该分组的一部分而在主机和客户机装置间被传输或发送的比特或数据。 The third field is the Data Bytes which contains the bits or data being transferred or sent between the host and client devices as part of the packet. 数据格式按照被传输数据的特定类型而为各分组类型特别定义,并且可以分成一系列附加字段,各具有其自身的格式要求。 Data format according to a particular type of data to be transmitted for each packet type and is specifically defined, and may be divided into a series of additional fields, each with its own format requirements. 也就是说, 各分组类型为该部分或字段具有定义的格式。 That is, each packet type having a defined format for this portion or field. 最后的字段是CRC字段,包含在数据字节、分组类型和分组长度字段上计算的16比特循环冗余码结果,用于确认分组中信息的完整性。 The last field is the CRC field contained in the data byte, 16-bit cyclic redundancy code calculation on the result of the packet type and the packet length field, the integrity of the information in the packet for confirmation. 换句话说,在除了CRC字段自身的全部分组上被计算。 In other words, in addition to being calculated on the entire packet CRC field itself. 客户机一般保持检测到的CRC误差总数,并将该数在显示请求和状态分组内汇报回主机(见下)。 The client generally kept to the total number of CRC error detection, and the number of the display back to the host Request and Status report (see below) the packet.

在分组传输期间,所发送的字段以最低有效位(LSB)开始,并且以最后发送的最高有效位(MSB)结束。 During packet transmission, the transmitted field to the least significant bit (LSB) starts and ends with the most significant bit (MSB) transmitted last. 长度大于一字节的参数先用最低有效字节发送,导致为长度大于8比特的参数使用相同的比特传输模式,就像用于其中先发送LSB的较短参数中一样。 Parameter byte length greater than a first least significant byte transmission, resulting in transmission mode using the same bit length as a parameter greater than 8 bits as the first transmission for a shorter parameter where the LSB of the same. MDDI—Data0信号通道上的数据与以任一模式在接口上发送的字节的第0 位对准,模式有类型—I、类型一II、类型一III或类型一IV。 Data on the MDDI-Data0 signal channel in either bytes transmitted on the interface mode bit 0 is aligned with a model type -I, a type II, category, or a type of a III IV.

当操纵用于显示的数据时,像素阵列的数据先按行被发送,然后按列,电子领域中一般都这样做。 When manipulating data for displays, the data lines of the pixel array is transmitted press, and then by column, the electronics field generally do so. 换句话说,出现在位图的同一行中的所有像素的发送顺序为.• 先发送最左边的像素,最后发送最右边的像素。 In other words, the order appeared to send all of the pixels in the same row of the bitmap is. • The leftmost pixel is sent first, and finally send the rightmost pixel. 在发送了一行的最右边的像素之后, 序列中接着的像素是下一行的最左边的像素。 After transmitting the rightmost pixel row, followed by the sequence of the next row of pixels is the leftmost pixel. 对于大多数显示器来说,像素的行一般以从上至下的顺序被发送,然而也可以根据需要采用其他配置。 For most displays, pixel rows are generally transmitted in order from top to bottom, but other configurations may be employed as desired. 而且,在处理位图时,这里遵循的常规方法是,通过将位图的左上角标记为位置或偏移"O, 0"来定义一个参考点。 Further, in handling bitmaps, the conventional approach is followed here, or offset position marked "O, 0" through the upper left corner of the bitmap to define a reference point. 当一个人分别接近位图的右边和底部时,用于定义或确定位图中位置的X和Y坐标值增加。 When a person near the respective right and bottom of the bitmap, for defining or determining the X and Y coordinate values ​​of the position in the bitmap increase. 第一行和第一列以下标值零开始。 The first row and first column start a subscript value of zero.

C.分组定义 C. grouping defined

1.子帧报头分组 1. Sub-frame Header Packet

子帧报头分组是每一个子帧的第一个分组,并且具有如图8所述的基本结构。 Sub-Frame Header packet is the first packet of every sub-frame, and has a basic structure in FIG. 8.

如图8所示,这种类型的分组被构造成具有分组长度、分组类型、唯一字、子帧长 8, this type of packet is structured to have Packet Length, Packet Type, Unique Word, sub-frame length

度、协议版本、子帧计数和媒体帧计数字段, 一般顺序如此。 Degree, Protocol Version, Sub-frame count and Media-frame Count fields, so the general order. 这种类型的分组一般 This type of packet is generally

被标识为类型255 (0xff十六进制)分组并且使用17字节的预先选定的固定长度。 It was identified as a Type 255 (0xff hexadecimal) packet and uses a pre-selected 17-byte fixed length.

虽然分组类型字段使用1字节值,然而唯一字字段使用3字节值。 While the Packet Type field uses 1 byte value, the Unique Word field but using 3 byte value. 这两个字段的4字节组合一起形成具有良好自相关的32比特唯一字。 Forming the 32-bit unique word with good autocorrelation with 4-byte combination of these two fields. 实际唯一字是0x005a3bff ,其中较低的8比特作为分组类型先被发送,而最高的24比特之后被发送。 The actual unique word is 0x005a3bff, wherein the lower 8 bits are transmitted first as the Packet Type, is transmitted after the highest 24 bits.

子帧长度字段包含指定每子帧字节数的4字节信息。 Sub-frame Length field contains a number of bytes per sub-frame is 4 bytes of information. 该字段的长度可以被设为零,表示在链路被关闭为空闲状态前主机将只发送一个子帧。 The length field may be set to zero, it indicates that the host will transmit only one sub-frame before the link is shut down to the idle state. 当从一个子帧转移到下一个子帧时,该字段中的值可以"在运行中"动态变化。 When the transfer from one sub-frame to the next sub-frame, the value of this field can be dynamically changes "on the fly." 为了在用于提供同步数据流的同步脉冲中作出较小定时调节,该性能是有用的。 In order to provide a synchronization pulse for synchronizing the data stream at the timing adjustment made smaller, the performance is useful. 如果子帧报头分组的CRC无效,则链路控制器应该使用先前已知良好的子帧报头分组的子帧长度来估计当前子帧的长度。 If the CRC of the Sub-frame Header packet is not valid then the link controller should use the Sub-frame Length of the previous known-good Sub-frame Header packet to estimate the length of the current sub-frame.

协议版本字段包含2字节,指定由主机使用的协议版本。 The Protocol Version field contains 2 bytes that specify the protocol version used by the host. 协议版本字段被设为"0",将协议的第一或当前版本指定为使用中。 Protocol Version field is set to "0", the first or the current version of the protocol specified for the use. 该值将随着新版本的创建而随时间改变。 This value will change over time as new versions are created. 子帧计数字段包含2字节,指定表示自媒体帧开始时已被发送的子帧数 Sub-frame Count field contains 2 bytes that specify the number of subframes indicates when the media frame from the beginning has been transmitted

的序列号。 Serial number. 媒体帧的第一子帧具有值为零的子帧计数。 The first sub-frame of the media-frame has a Sub-frame Count of zero. 媒体帧的最后一子帧的值为nl,其中n每媒体帧的子帧数。 The last sub-frame of the media frame is nl, where n sub-frames per media-frame. 注意到,如果子帧长度被设为零(表示非周期性子帧),则子帧计数也必须被设为零。 Note that if the Sub-frame Length is set to zero (indicating a non-periodic sub-frame), then the Sub-frame count must also be set to zero.

媒体帧计数字段包含3字节,指定一个序列号,表示自当前被传输的媒体项或数据开始以来已被发送的媒体帧数目。 Media-frame Count field contains 3 bytes, specify a sequence number representing the number of media frames currently being transmitted since the beginning of the media item or data has been transmitted. 媒体项的第一媒体帧的媒体帧计数为零。 Media frames of media items first media frame Count of zero. 媒体帧计数刚好在各媒体帧的第一子帧之前增一,并且在使用了最大媒体帧计数 Media-frame Count is incremented by one just before the first sub-frame of each media frame, and after the maximum Media-frame Count

(媒体帧数目224-1=16, 777, 215)之后变回零。 After (the number of media frames 224-1 = 16, 777, 215) back to zero. 媒体帧计数值一般可由主机在任何时间重置以满足终端程序的需要。 The Media-frame Count value reset generally at any time by the host to meet the needs of the terminal program.

2. 填充符分组 2. Filler Packet

填充符分组是当前向或反向链路上没有其他可被发送的信息时被发送至客户机装置或从客户机装置被发出的分组。 Filler packet is currently being transmitted when no other information can be transmitted to the client device or the packet is sent from the client device on the forward or reverse link. 推荐填充符分组具有最小长度以便允许需要发送其他分组时的最大灵活性。 It recommended that filler packets have a minimum length needed to allow maximum flexibility in sending other packets. 在子帧或反向链路封装分组(见下)的终端处,链路控制器设定填充符分组的大小以便填充剩余空间以保持分组整体性。 Subframe at the terminal or a reverse link encapsulation packet (see below), a link controller sets the size of the filler packet to fill the remaining space to maintain packet integrity.

图9示出填充符分组的格式和内容。 9 illustrates the format and contents of a Filler Packet. 如图9所示,这种类型的分组的结构为具有分组长度、分组类型、填充符字节、以及CRC字段。 9, the structure of packets of this type to have Packet Length, Packet Type, Filler Bytes, and CRC fields. 这种类型的分组一般被标识为类型0,它在l字节的类型字段中表示。 This type of packet is generally identified as a Type 0, which represents the l-byte type field. 填充符字节字段内的比特或字节包括可变数量的全零比特,允许填充符分组成为期望的长度。 Bits or bytes in the Filler Bytes field comprise a variable number of all zero bit, allow the filler packet to be the desired length. 最小的填充符分组在该字段中不包含任何字节。 The smallest filler packet contains no bytes in this field. 也就是说,该分组仅由分组长度、分组类型和CRC组成,并且使用3字节的预先选定的固定长度。 That is, only the packet from the Packet Length, Packet Type, and CRC composition, and the use of 3 bytes preselected fixed length.

3. 视频流分组 3. Video Stream Packet

视频流分组携带视频数据来不规则地更新显示装置的矩形区域。 Video Stream Packets carry video data to update the display irregularly rectangular region of the device. 该区域的大小可以小到单个像素或者大到整个显示器。 The size of the region may be as small as a single pixel or as large as the entire display. 可能有同时显示的数量几乎不限的流, 受到系统资源限制,这是因为显示一个流所需的全部范围包含在视频流分组内。 There may be simultaneously displayed almost unlimited number of streams by the system resource constraints, it is displayed as a full range of desired flow contained within the Video Stream Packet. 图IO示出视频流分组的格式(视频数据格式描述符)。 FIG IO illustrates the format of a Video Stream Packet (Video Data Format Descriptor). 如图10所示,这种类型分组的结构具有分组长度、分组类型、视频数据描述符、显示属性、X左边缘、Y上边缘、 X右边缘、Y下边缘、X和Y起始点、像素计数、参数CRC、像素数据、以及CRC 字段。 10, this type of packet structure have Packet Length, Packet Type, Video Data Descriptor, Display Attributes, X left edge, the Y-edge, X right edge, a lower edge Y, X and Y start point, the pixel count, parameter CRC, pixel data, and CRC fields. 这种类型的分组一般被标识为类型l,它在1字节的类型字段中表示。 This type of packet is generally identified as a Type l, it indicates 1-byte type field.

上述常见的帧概念是使音频缓冲大小最小并且减少等待时间的有效方式。 Common frame concept discussed above so that the audio buffer size and decrease effective way to minimize latency. 然而,对于视频数据而言,可能需要在媒体帧内的多个视频流分组间扩展一个视频帧的像素。 However, for video data, among the plurality of video streams of media packets within a frame extension of a video frame pixels may be required. 同样很可能的是,单个视频流分组内的像素不会正好对应于显示器上完整的矩形窗。 It is likely that the same pixels within a single Video Stream Packet will not exactly correspond to a perfect rectangular window on the display. 对于示例性每秒30帧的视频帧速率而言,每秒有300个子帧,这导致每媒体帧10个子帧。 For the exemplary video frame rate of 30 frames per second, there are 300 sub-frames per second, which results in 10 sub-frames per media-frame. 如果每帧内有480行像素,则各子帧内的各视频流分组将包含48行像素。 If there are 480 rows of pixels in each frame, each Video Stream Packet then each sub-frame will contain 48 rows of pixels. 在其他情况下,视频流分组可能不包含整数行的像素。 In other cases, the Video Stream Packet might not contain an integer pixel rows. 这对于其它视频帧大小也是正确的,其中每媒体帧的子帧数不均匀地分成每视频帧的行数(也称为视频行)。 This other video frame size is correct, wherein the sub-frames per media frame is unevenly divided lines per video frame (also known as video lines). 即使各视频流分组可能不包含整数行的像素,然而它必须包含整数个像素。 Even if each of the Video Stream Packet might not contain an integer pixel row, but it must contain an integer number of pixels. 如果像素大于每像素一字节,或者如果它们为图12所示的分组格式,那么这将是重要的。 If the pixel is greater than one byte per pixel, or if the packet format thereof is shown in FIG. 12, then it will be important.

图lla—lld示出实现上述视频数据描述符字段的操作所使用的格式和内容。 FIG lla-lld shows an implementation of the above-described operation of the video format and contents data field descriptor is used. 图lla—lld中,视频数据格式描述符字段包含2字节,其形式为16比特的无符号整数,指定了当前分组中当前流内像素数据中各像素的格式。 FIG lla-lld, the Video Data Format Descriptor field contains 2 bytes in the form of 16-bit unsigned integer that specifies the current flow in the current packet format pixel data of each pixel. 不同流(由流ID字段指明)可能使用不同的像素数据格式,SP,在视频数据格式描述符内使用不同值, 同样,任何流都可能在运行中改变其数据格式。 Different streams (indicated by the Stream ID field) may use different pixel data formats, SP, use a different value in the Video Data Format Descriptor, and similarly, any stream may change its data format operation. 视频数据格式描述符定义了当前分组的像素格式,仅此不意味着特定视频流使用期限内会继续使用恒定格式。 Video Data Format Descriptor defines the pixel format for the current packet only does this mean that a constant format will continue to be used within a particular video stream life.

图11a—lld说明了怎样编码视频数据格式描述符。 FIGS 11a-lld illustrate how the Video Data Format Descriptor is coded. 如这些图中所用,如图lla 所示,当比特[15:13]等于"000"时,视频数据包括一个阵列的单色像素,其中每像素的比特数由视频数据格式描述符字的位3至0所定义。 When used in these figures, FIG. Lla, when bits [15:13] are equal to "000", a video data includes an array of monochrome pixels where the number of bits per pixel by the Video Data Format Descriptor word bits 3-0 defined. 如图llb所示,当比特[15:13]等于"001"时,视频数据包括一个阵列的彩色像素,其中每像素都指定色图中的一个颜色。 When FIG llb, when bits [15:13] are equal to "001", the video data comprising a color pixel array in which each pixel is assigned a color of the color chart. 在这种情况下,视频数据格式描述符字的位5至0定义了每像素的比特数,位11至6被设为等于零。 In this case, bit Video Data Format Descriptor word define the number of 5-0 bits per pixel, and bits 11 through 6 are set to zero. 如图llc所示,当比特[15:13]等于"010" 时,视频数据包括一个阵列的彩色像素,其中红色的每像素比特数由位11至8所定义,绿色的每像素比特数由位7至4所定义,蓝色的每像素比特数由位3至0 所定义。 As shown in FIG LLC, when bits [15:13] are equal to "010", the video data comprising a color pixel array, wherein the number of bits per pixel of red is defined by bits 11 to 8, the number of bits per pixel of green by the bits 7 through 4 are defined, the number of bits per pixel of blue is defined by 3-0 bits. 在这种情况下,总的每像素比特数是红色、绿色和蓝色所用的比特数之和。 In this case, the total number of bits per pixel of red, green, and blue are used and the number of bits.

然而,如图lld所示,当比特[15:13]等于"011"时,视频数据包括一个阵列的视频数据,格式为4:2:2,带有亮度和色度信息,其中亮度(Y)的每像素比特数由位11至8定义,Cr分量的比特数由位7至4定义,而Cb分量的比特数由位3 至0定义。 However, as shown in FIG lld, when bits [15:13] are equal to "011", an array of video data includes a video data format is 4: 2: 2, with luminance and chrominance information, wherein the luminance (Y ) the number of bits per pixel is defined by bits 11 through 8, the number of bits of the Cr component is defined by bits 7 through 4, and the number of bits of the Cb component is defined by bits 3-0. 每像素的总比特数是红色、绿色和蓝色所用的比特数之和。 The total number of bits per pixel of red, green, and blue are used and the number of bits. Cr和Cb以发送Y的速率的一半被发送。 Cr and Cb are transmitted at half the transmission rate Y. 此外,该分组的像素数据部分中的视频采样如下组织: Yn, Crn, Cbn, Yn+I, Yn+2, Crn+2, Cbn+2, Yn+3,…其中Cr。 Further, the pixel data portion of the packet in the video samples in the following tissues: Yn, Crn, Cbn, Yn + I, Yn + 2, Crn + 2, Cbn + 2, Yn + 3, ... where Cr. 和C、与Y。 And C, as Y. 和Y^相关,CiV2和Cbn+2 与Y^和Y^相关,依此类推。 And Y ^ related, CiV2 and Cbn + 2 and associated with the Y ^ Y ^, and so on. 如果当前流的一行中有奇数个像素(X右边缘一X左边缘+l),则对应于每行中最后一个像素的Cb值后面将跟着下一行的第一个像素的Y值。 If there are an odd number of pixels (a right edge X X Left Edge + l) line of the current stream, then the corresponding back Cb values ​​to each pixel in the last row will be followed by the Y value of the first pixel of the next row.

对于图中所示的所有四种格式而言,被指明为"P"的位12指定该像素数据采样是否是分组的、或字节对齐的像素数据。 For all four formats shown in the figures, are designated as "P" in the 12-bit pixel data specifies whether the packet is sampled, or byte-aligned pixel data. 该字段中"0"值表示像素数据字段 The field "0" represents a pixel value of a data field

中每个像素内的每个像素和每个颜色都与MDDI接口字节边界字节对齐。 Each pixel and each color within each pixel aligned with an MDDI interface byte boundary bytes. "1"值表示像素数据中每个像素和每个像素内的每个颜色都相对于像素内的前一像素或颜色而被打包而不留下未使用的比特。 "1" represents a pixel value of each pixel and the data of each color within each pixel with respect to the previous pixel or color within a pixel to be packed without leaving unused bits.

特定显示窗的第一视频流分组内的第一像素会进入由X偏移和Y偏移定义的 A first pixel within a particular display window will enter the first video stream packet by the X and Y offsets defined

流窗口的左上角,而下一个接收到的像素被放在同一行内的下一像素位置,依此类推。 The upper left corner of the stream window, and the next pixel received is placed in the next pixel location in the same row, and so on. 为了便于该操作,显示器使"下一像素行和列"计数器保持与每个活动视频流 To facilitate this operation, the display so that the "next pixel row and column" counter keeps each active video stream

ID相关。 ID-related.

4. 音频流分组 4. Audio Stream Packet

音频流分组携带要通过显示器的音频系统播放、或者用于独立音频显现装置 The audio stream packets carry audio system for playback through the display, or an audio presentation device for independently

的音频数据。 The audio data. 在音响系统中可以为分开的音频信道分配不同的音频数据流,例如: You can assign different audio streams as separate audio channels in a sound system, for example:

左前、右前、中间、左后、以及右后,这取决于所使用的音频系统类型。 Front left, front right, center, rear left, rear right, and, depending on the type of audio system being used. 为包含增 Containing growth

强型空回声音信号处理的头戴式耳机提供了音频信道的完全补足。 Strong backlash sound signal processing type of headphone provides a full complement of audio channels. 图13说明了音频流分组的格式。 13 illustrates the format of an Audio Stream Packet. 如图13所示,这种类型分组结构具有分组长度、分组类型、音频信道ID、音频采样计数、每采样和分组的比特、音频采样率、参数CRC、数字音频数据、以及音频数据CRC字段。 As shown, this type of packet structure 13 having a Packet Length, Packet Type, Audio Channel ID, Audio Sample Count, and grouping bits per sample, audio sample rate, Parameter CRC, Digital Audio Data, and Audio Data CRC fields. 这种类型的分组一般被标记为类型2分组。 This type of packet is generally labeled as Type 2 packet.

每采样和分组的比特字段包含1字节,形式为8比特无符号整数,指定了音频数据的分组格式。 Bits per sample and packet field contains 1 byte in the form of 8-bit unsigned integer that specifies the packet format of audio data. 一般所使用的格式是位4至0定义每PCM音频采样的比特数。 Format commonly used definition of the number of bits per PCM audio sample bits 4-0. 位5指定该数字音频数据采样是否经分组。 Bit 5 specifies whether the digital audio sample packetized data. 图14说明了经分组的和字节对齐的音频采样间的差异。 FIG 14 illustrates the difference between audio samples and through the aligned bytes in the packet. "0"值指示数字音频数字字段内的每个PCM音频采样与MDDI 接口字节边界字节对齐,而"1"值指示每个连续的PCM音频采样相对于前一音频采样被分组。 "0" value of the audio samples aligned with an MDDI interface byte boundary within a byte indicative of each PCM digital audio numeric field, and "1" indicates that each successive PCM audio sample is with respect to the previous packet audio samples. 该位仅当以位4至0定义的值(每PCM音频采样的比特数)不是八的倍数时才有效。 This bit is effective only when multiple value (number of bits per PCM audio sample) is defined in bits 4-0 is not eight. 位7至6保留以备将来使用并且一般被设为零值。 Bits 7-6 reserved for future use and is generally set to a zero value.

5. 保留的流分组 5. Reserved Stream Packets

正如所遇到的各种应用所期望的那样,分组类型3至55保留以备流分组将被定义用于将来形式或分组协议的变体。 As various applications encountered as desired, Packet Type 3-55 reserved for stream packets to be defined for future variant form of packets or protocol. 同样,这部分使MDD接口在面对与其它技术相比不断变化的技术和系统设计时更灵活并且更有用。 Again, this part of the MDD interface more flexible in the face of technology and systems compared to other techniques changing design and more useful.

6.用户定义的流分组 6. User-Defined Stream Packet

保留了被称为类型56至63的八种数据流类型,以备用于可由设备制造商定义与MDDI链路一起使用的专有应用中。 Eight data stream types retains referred Types 56 through 63, in order to prepare for use with a specific application of the device manufacturer may define the MDDI link. 这些被称为用户定义的流分组。 These are known as User-defined Stream Packets. 视频流分组携带视频数据来更新(或不)显示器的矩形区域。 Video Stream Packet carries video data to update (or not) a rectangular region of the display. 这些分组类型的流参数和数据的定义留给特定设备制造商来寻找其用途。 These definitions packet stream parameters and data types is left to the specific equipment manufacturers seeking their use. 图15说明了用户定义的流分组的格式。 15 illustrates the format of a User-Defined Stream Packet.

如图15所示,这种类型的分组结构为具有分组长度、分组类型、流ID号、流参数、 参数CRC、流数据、以及流数据CRC字段。 As shown in FIG 15, this type of packet structure to have Packet Length, Packet Type, Stream ID number, Stream Parameters, Parameter CRC, Stream Data, and Stream Data CRC fields.

7. 色图分组 7. FIG packet Color

色图分组指定了用于为显示器显现色彩的色图査找表的内容。 FIG packet specifies color for the contents of a display to show the color chart the color lookup table. 某些应用可能要求色图大于能在单个分组内发送的数据量。 Some applications may require a color chart can be greater than the amount of data to be transmitted in a single packet. 在这些情况下,可以传输多个色图分组,每个都通过使用下述偏移和长度字段而带有色图的不同子集。 In these cases, a plurality of color map packets may be transmitted, each by a different subset of the color map with the use of offset and length fields described below. 图16说明了色图分组的格式。 16 illustrates the format of a Color Map Packet. 如图16所示,这种类型的分组的结构具有分组长度、分组类型、 色图数据大小、色图偏移、参数CRC、色图数据、以及数据CRC字段。 As shown in FIG. 16, the packet structure of this type have Packet Length, Packet Type, Color Map Data Size, Color Map Offset, Parameter CRC, Color Map Data, and Data CRC fields. 这种类型的分组一般被标识为类型64分组。 This type of packet is generally identified as a Type 64 packet.

8. 反向链路封装分组 8. Reverse Link Encapsulation Packets

数据用反向链路封装分组在反向上被传输。 Reverse Link Encapsulation packet data is transmitted on the reverse. 前向链路分组被发送,MDDI链路操作(传输方向)在该分组的中间被改变或转向以便可以在反向上发送分组。 Link packets to be transmitted before, MDDI link operation (transfer direction) is changed or turned so that the packet may be sent on the reverse in the middle of the packet. 图17 说明了反向链路封装分组的格式。 17 illustrates the format of a Reverse Link Encapsulation Packet. 如图17所示,这种类型的分组结构具有分组长度、分组类型、反向链路标志、转向长度、参数CRC、转向1、反向数据分组、以及转向2。 As shown in FIG 17, this type of packet structure have Packet Length, Packet Type, Reverse Link Flags, Turn-Around Length, Parameter CRC, Turn-Around 1, Reverse Data packets, and Turn Around 2. 这种类型的分组一般被标识为类型65分组。 This type of packet is generally identified as a Type 65 packet.

MDDI链路控制器在发送反向链路封装分组时以特殊的方式工作。 MDDI link controller works in a special manner while sending a Reverse Link Encapsulation Packet. MDD接口具有一个总是由主机激励的选通信号。 MDD interface has a strobe signal is always excited by the host. 主机表现得好像它正在为反向链路封装分组的转向和反向数据分组部分的每个比特发送一个零。 The host behaves as if it were a steering and reverse each bit of the Reverse Data Packets portions of the transmission of a zero-Link Encapsulation Packet. 在两段转向时间期间和为反向数据分组分配的时间期间,主机在每一个比特边界转换MDDI—Strobe信号。 And Reverse Data Packets assigned time period during the two steering time, the host translation MDDI-Strobe signal at each bit boundary. (这就相当于它在发送全零数据的行为。)主机在由转向1指定的时间段禁用其MDDI数据信号线路驱动器,而客户机在由转向2字段指定的时间段之后的驱动器再起动字段期间再起动其线路驱动器。 (This is equivalent to its behavior in transmitting all-zero data.) The host disables its MDDI data signal line drivers by a steering a specified period of time, and the client after a specified by the Turn Around 2 field period of the drive restart field restart its line drivers during. 显示器读取转向长度参数并且在转向1字段的最后一比特后立即将数据信号驱向主机。 Display reads the Turn-Length parameter and drives the data signal immediately to the host 1 in the steering field is the last bits. 显示器使用分组长度和转向长度参数来得知可用于将分组发送至主机的时间长度。 Display uses the Packet Length and Turn-Around Length parameters to know may be used to send the packet to the length of time the host. 在没有发送至主机的数据时,客户机可以发送填充符分组或者将数据线激励至零状态。 When data is not sent to the host, the client may send filler packets or data lines to a zero state excited. 如果数据线被激励至零,则主机将其理解为具有零长度(不是有效的长度)的分组,并且主机在当前反向链路封装分组的持续期间不再接收任何来自客户机的分组。 If the data lines are excited to zero, the host will be understood as a packet with a zero length (not a valid length) and the host does not accept any more packets from the client for the duration of the current Reverse Link Encapsulation Packet.

显示器在转向2字段开始前的至少一个反向链路时钟周期将MDDI数据线激励 Display least one reverse link clock period before the start of the Turn Around 2 field excitation MDDI data lines

至零电平。 To zero level. 这使数据线在转向2时间段内保持在确定的状态。 This enables the data line 2 in the period of holding the steering state determined. 如果客户机不再有待 If the client no longer needs to be

发送的分组,它甚至能在将它们激励至零电平之后禁用数据线,这是由于休眠偏置电阻(他处讨论)使数据线在反向数据分组字段的其余时间保持在零电平。 Packet transmitted, it can even disable the data lines after they have been excited to a zero level, which is due to sleep bias resistor (discussed elsewhere) keep the data lines at a zero level for the remainder of the Reverse Data Packets field. 为了通知主机将数据发回主机时显示器在反向链路封装分组中所需的字节 In order to notify the host when the display data back to the host in the required bytes in the Reverse Link Encapsulation Packet

数,可以使用显示请求和状态分组(Display Request and Status Packet)的反向链路请求字段。 The number may be displayed using Request and Status Packet (Display Request and Status Packet) The Reverse Link Request field. 主机企图通过在反向链路封装分组中分配至少该数量的字节而允许该请求。 Host attempts by allocating at least that number of bytes in the Reverse Link Encapsulation Packet to allow the request. 主机可以在子帧中发送多于一个反向链路封装分组。 The host may send more than one Reverse Link Encapsulation Packet in a sub-frame. 显示器可以在几乎任何时候发送显示请求和状态分组,主机将反向链路请求参数解释为一个子帧中请求的总字节数。 The display may send display request and Status Packet at almost any time, the host will be explained Reverse Link Request parameter as the total number of bytes requested in one sub-frame.

9. 显示性能分组 The display performance packet

为了以一般最佳或期望的方式配置主机至显示器链路,主机需要知道它正在通信的显示器(客户机)的性能。 For general optimal or desirable way to configure the host to the display link, the host needs to know that it is a display in communication performance (client). 推荐显示器在获得前向链路同步后将显示性能分组发送至主机。 Recommended display to display to the synchronization performance will be obtained before the link packet to the host. 当由主机用反向链路封装分组内的反向链路标志请求时,视作需要这种分组的传输。 When requested by a host using the Reverse Link Flags in the Reverse Link Encapsulation Packet, this packet is considered to be transmitted. 图18说明了显示性能分组的格式。 Figure 18 illustrates the performance of a packet format. 如图18所示,这种类型的分组结构具有分组长度、分组类型、协议版本、最小协议版本、位图宽度、位图高度、 单色性能、色图性能、RGB性能、Y Cr Cb性能、显示特征性能、数据速率性能、 帧速率性能、音频缓冲深度、音频流性能、音频速率性能、最小子帧速率、以及CRC字段。 18, this type of packet structure have Packet Length, Packet Type, Protocol Version, Min Protocol Version, Bitmap Width, Bitmap Height, Monochrome performance, color chart performance, the performance of the RGB, Y Cr Cb performance, display performance characteristics, performance data rate, frame rate performance, audio buffer depth, performance of the audio stream, the audio rate performance, Sub-frame rate, and CRC fields. 这种类型的分组一般被标识为类型66分组。 This type of packet is generally identified as a Type 66 packet.

10. 键盘数据分组 10. Keyboard Data Packets

键盘数据分组用于将键盘数据从客户机装置发送至主机。 Keyboard Data Packet is used to send keyboard data from the client device to the host. 无线(或有线)键盘可与各种显示器或音频装置一起使用,后者包括、但不限于,头部安装的音频显示器/音频显现装置。 Wireless (or wired) keyboard may be used with various displays or audio devices together, the latter including, but not limited to, audio head-mounted display / audio presentation device. 键盘数据分组将从多个已知键盘状装置之一接收到的键盘数据中继至主机。 One of the plurality of data packets from the keyboard of known keyboard-like device relays keyboard data received to the host. 该分组也可用在前向链路上以把数据发送至键盘。 This packet can also be transmitted in the forward link data to the keyboard. 图19示出键盘数据分组的格式,包含来自键盘或者用于键盘的可变字节数量的信息。 FIG 19 illustrates the format of a Keyboard Data Packet contains a variable number of bytes of information from or for a keyboard keypad. 如图19所示, 这种类型的分组结构具有分组长度、分组类型、键盘数据、以及CRC字段。 19, this type of packet structure have Packet Length, Packet Type, Keyboard Data, and CRC fields. 这种类型的分组一般被标识为类型67分组。 This type of packet is generally identified as a Type 67 packet.

11.指示装置数据分组 11. A data packet indicating means

指示装置数据分组用于将来自无线鼠标或其它指示装置的位置信息从显示器发送至主机。 Location information indicating means for a data packet from a wireless mouse or other pointing device is transmitted to the host from the display. 数据也可以用该分组在前向链路上被发送至指示装置。 Data can also be used to forward the packet to be sent to the pointing device on the forward link. 图20示出指示装置数据分组的格式,包含来自指示装置或者用于指示装置的可变字节数量的信息。 FIG 20 illustrates the format of a data packet indicating means, comprising a variable number of bytes of information from or for a pointing device in the pointing device. 如图20所示,这种类型的分组结构具有分组长度、分组类型、指示装置数据、 20, this type of packet structure have Packet Length, Packet Type, Pointing Device Data,

以及CRC字段。 And CRC fields. 这种类型的分组一般被标识为类型68分组。 This type of packet is generally identified as a Type 68 packet.

12. 链路关闭分组 12. Link Shutdown Packet

链路关闭分组从主机被发送至客户机显示器,指示MDDI数据和选通将被关闭并且进入低功耗"休眠"状态。 Link Shutdown Packet is sent from the host to the client display, indicating the MDDI data and strobe will be shut down and enter a low-power "sleep" state. 在静态位图从移动通信装置被发送至显示器之后, 或者当目前没有信息从主机被传送至客户机时,该分组对于关闭链路和保存功率是有用的。 After static bitmaps are sent from a mobile communication device to the display, or when there is no current information is transmitted to the client from the host, for closing links and the packet is useful to save power. 当主机再次发送分组时正常操作继续。 When the host sends packets again to continue normal operation. 休眠后被发送的第一分组是子帧报头分组。 The first packet sent after hibernation is a sub-frame header packet. 图21示出显示状态分组的格式。 FIG 21 shows a packet format display state. 如图21所示,这种类型的分组结构具有分组长度、分组类型、以及CRC字段。 As shown in FIG 21, this type of packet structure have Packet Length, Packet Type, and CRC fields. 这种类型的分组一般在1字节类型字段内被标识为类型69分组,并且使用预先选择的固定长度3字节。 This type of packet is generally in the 1-byte type field is identified as a Type 69 packet, and uses a pre-selected fixed length of 3 bytes.

在低功率休眠状态,MDDI一Data驱动器被禁用为高阻态,而MDDI—Data信号用能由显示器过激励的高阻抗偏置网络拉到逻辑零状态。 In the low-power hibernation state, the MDDI Data driver is disabled a high-impedance state, and the MDDI-Data signals to a logic zero state using the display can be energized through a high-impedance bias network. 为了使功耗最小,接口使用的选通信号在休眠状态被设为逻辑零电平。 To minimize power consumption, the strobe signal used by the interface is set to a logic-zero level in the hibernation state. 如其它地方所述,或主机或显示器能使MDDI链路从休眠状态"苏醒"过来,这是本发明的关键先进之处和优点。 As described elsewhere, or host, or display from the hibernation state the MDDI link can "wake up" up, which is advanced at the key and advantages of the present invention.

13. 显示请求和状态分组 13. Display Request and Status Packet

主机需要来自显示器的少量信息,因此它可以以最佳方式配置主机至显示器链路。 Host needs a small amount of information from the display so it can configure the host-to-display link in an optimum manner. 推荐显示器每子帧发送一个显示状态分组至主机。 Recommendation display per subframe transmitting a status packet to the host display. 显示器应该将该分组作为反向链路封装分组内的第一分组发送,以确保它可靠地被传递至主机。 The display should send a packet as a first packet in the Reverse Link Encapsulation Packet to ensure that it is delivered reliably to the host. 图22示出显示状态分组的格式。 FIG 22 illustrates the format of the display state of the packet. 如图22所示,这种类型的分组结构具有分组长度、分组类型、反向链路请求、CRC差错计数、以及CRC字段。 Shown, this type of packet structure 22 having a Packet Length, Packet Type, Reverse Link Request, CRC Error Count, and CRC fields. 这种类型的分组一般在1字节类型字段内被标识为类型70分组,并且使用预先选择的固定长度7字节。 This type of packet is generally in the 1-byte type field is identified as a Type 70 packet, and uses a fixed length of 7 bytes preselected.

反向链路请求字段可以用于通知主机将数据发回主机时显示器在反向链路封装分组中需要的字节数。 When the number of bytes in the Reverse Link Request field may be used to inform the host to send data back to the host display needs in the Reverse Link Encapsulation Packet. 主机应该通过在反向链路封装分组中分配至少该数量的字节数来允许该请求。 The host should allocate at least that number of bytes in the Reverse Link Encapsulation Packet to allow the request through. 为了提供数据,主机可能在子帧中发送多于一个反向链路封装分组。 In order to provide the data, the host may send more than one Reverse Link Encapsulation Packet in a sub-frame. 显示器可能随时发出显示请求和状态分组,主机将把反向链路请求参数解释为一个子帧中所请求的总字节数。 The display may display at any time by Request and Status Packet, the host will explain the Reverse Link Request parameter as the total number of bytes requested in one sub-frame of. 下面示出反向链路数据怎样被发回主机的附加细 The following illustrates how an additional thin reverse link data is sent back to the host

节和特定实例。 Section and specific examples.

14. 比特块传输分组 14. The bit block transfer packet

比特块传输分组提供了一种在任何方向滚巻显示区域的装置。 Bit block transfer packet there is provided a roller apparatus Volume display area in any direction. 具有该性能的 The performance has

显示器将在显示性能分组的显示特征性能指示符字段的位0中报告该性能。 The performance monitor report packet in the bit 0 show display performance indicator field of characteristic properties. 图23 示出比特块传输分组的格式。 FIG 23 illustrates the format of the packet transmission block of bits. 如图23所示,这种类型的分组结构具有分组长度、 分组类型、左上X值、左上Y值、窗口宽度、窗口高度、窗X位移、窗Y位移、以及CRC字段。 23, this type of packet structure have Packet Length, Packet Type, Upper Left X Value, Upper Left Y Value, Window Width, Window Height, Window X displacement, the displacement of the window Y, and CRC fields. 这种类型的分组一般被标识为类型71分组,并且使用预先选择的固定长度15字节。 This type of packet is generally identified as a Type 71 packet, and uses a pre-selected fixed length of 15 bytes.

这些字段用于指定要被移动的窗口的左上角坐标的X和Y值、要被移动的窗口宽度和高度、以及要被分别水平和垂直移动的窗口的像素数。 These fields specify the upper left corner for the window to be moved in the X and Y coordinate values, the window is to be moved in height and width, and the number of pixels to be moved horizontally and vertically, respectively, of the window. 后两个字段的正值使窗口被向右、向下移动,而负值使窗口向左和向上移动。 The latter two fields cause value window is right, move down, and negative values ​​cause upward movement of the left window.

15. 位图区域填充分组 15. Bitmap Area Fill Packet

位图区域填充分组提供了一种容易地将显示区域初始化为单个颜色的装置。 Bitmap Area Fill Packet provides a display apparatus to easily initialize a region of a single color. 具有该性能的显示器将在显示性能分组的显示特征性能指示符字段的位1中报告该性能。 The display having the properties reported in the 1-bit display properties in display performance characteristic properties packet indicator field. 图24示出位图区域填充分组的格式。 FIG 24 shows a Bitmap Area Fill Packet format. 如图24所示,这种类型的分组结构具有分组长度、分组类型、左上X值、左上Y值、窗口宽度、窗口高度、数据格式描述符、像素区域填充值、以及CRC字段。 24, this type of packet structure have Packet Length, Packet Type, Upper Left X Value, Upper Left Y Value, Window Width, Window Height, Data Format Descriptor, Pixel Area Fill Value, and CRC fields. 这种类型的分组一般在1字节类型字段内被标识为类型72分组,并且使用预先选择的固定长度17字节。 This type of packet is generally in the 1-byte type field is identified as a Type 72 packet, and uses a fixed length of 17 bytes preselected.

16. 位图图案填充分组 16. Bitmap Pattern Fill Packet

位图图案填充分组提供了一种容易地将显示区域初始化为预先选择的图案的装置。 Bitmap Pattern Fill Packet provides a display apparatus to easily initialize a region of pre-selected pattern. 具有该性能的显示器将在显示性能分组的显示特征性能指示符字段的位2 中报告该性能。 The display having the properties reported in the performance of the display performance of packet 2 bit display indicator field characteristic properties. 填充图案的左上角与要被填充的窗口的左上角对齐。 The upper left corner to the upper left corner of the fill pattern is aligned with the window to be filled. 如果要被填充的窗口比填充图案宽或高,则该图案可以水平或垂直地被重复多次以填充该窗口。 If the window to be filled is wider or higher than the fill pattern, then the pattern may repeated horizontally or vertically a plurality of times to fill the window. 上一次被重复的图案的右边或下边根据需要被截断。 The last repeated pattern is truncated right or lower as needed. 如果该窗口比填充图案小,则为了适合该窗口,填充图案的右边或下边被截断。 If the window is smaller than the fill pattern, then in order for the window to the right or bottom of the fill pattern is truncated.

图25示出位图图案填充分组的格式。 FIG 25 illustrates the format of a Bitmap Pattern Fill Packet. 如图25所示,这种类型的分组结构具有分组长度、分组类型、左上X值、左上Y值、窗口宽度、窗口高度、图案宽度、 图案高度、数据格式描述符、参数CRC、图案像素数据、以及像素数据CRC字段。 25, this type of packet structure have Packet Length, Packet Type, Upper Left X Value, Upper Left Y Value, Window Width, Window Height, Pattern Width, Pattern Height, Data Format Descriptor, Parameter CRC, Pattern Pixel Data , and pixel data CRC fields.

这种类型的分组一般在1字节类型字段内被标识为类型73分组。 This type of packet is generally within a Type 73 packet 1-byte type field is identified as.

17. 通信链路数据信道分组 17. Communication Link Data Channel Packet

通信链路数据信道分组提供了一种具有高电平计算性能的显示装置,譬如PDA,用于与诸如蜂窝电话或无线数据端口装置这样的无线收发机进行通信。 Communication Link Data Channel Packet provides a display device having a high level of computing performance, such as PDA, for communicating with, such as a cellular phone or a wireless transceiver such wireless data port device. 在这 At this

种情况下,MDDI链路起到通信装置和带有移动显示器的计算装置间的方便高速接 The case, MDDI link functions to facilitate communication between the computing device and a mobile display device with high-speed access

口的作用,其中该分组在装置的操作系统的数据链路层传输数据。 Opening action, wherein the operating system of the data packet transmission apparatus in the data link layer. 例如,如果将 For example, if the

Web浏览器、电子邮件客户端、或者整个PDA内建到移动显示器中,则可以使用该分组。 Web browser, email client, or an entire PDA built into a mobile display, the packet may be used. 具有该性能的显示器将在显示性能分组的显示特征性能指示符字段的位3 中报告该性能。 Display having this property will be displayed in the display position of the indicator field performance characteristic properties packet 3 in the performance report.

图26示出通信链路数据信道分组的格式。 FIG 26 illustrates the format of a packet data channel communication link. 如图26所示,这种类型的分组结构具有分组长度、分组类型、参数CRC、通信链路数据、以及通信数据CRC字段。 As shown in FIG 26, this type of packet structure have Packet Length, Packet Type, Parameter CRC, Communication Link Data, and Communication Data CRC fields. 这种类型的分组一般在类型字段内被标识为类型74分组。 This type of packet is generally within the packet type 74 is identified as Type field.

18. 接口类型切换请求分组 18. Interface Type Handoff Request Packet

接口类型切换请求分组使主机能请求客户机即显示器从现有或当前模式变换成类型I(串行)、类型IK2比特并行)、类型IIK4比特并行)、或类型IV(8比特并行)模式。 Interface Type Handoff Request Packet can request the host to the client display that is converted from an existing or current mode to the Type I (serial), Type IK2 bit parallel), Type IIK4 bit parallel), or Type IV (8-bit parallel) mode. 在主机请求特定的模式之前,它应该通过检査显示性能分组的显示特征性能指示符字段的位6和7而确认显示器能工作在期望的模式。 Before the host requests a particular mode it should display bit performance indicator field characteristic properties packets 6 and 7. confirmation display can operate in a desired mode by checking the display. 图27示出接口类型切换请求分组的格式。 FIG 27 illustrates the format of a Interface Type Handoff Request Packet. 如图27所示,这种类型的分组结构具有分组长度、分组类型、接口类型、以及CRC字段。 As shown in FIG 27, this type of packet structure have Packet Length, Packet Type, Interface Type, and CRC fields. 这种类型的分组一般被标识为类型75分组, 并且使用预先选择的固定长度4字节。 This type of packet is generally identified as a Type 75 packet, and uses a pre-selected fixed length of 4 bytes.

19. 接口类型确认分组 19. Interface Type Acknowledge Packets

接口类型确认分组由显示器发送,用于确认接口类型切换分组的接收。 Interface Type Acknowledge Packet is sent by the display, receiving an acknowledgment for the Interface Type Handoff Packet. 所请求的模式,类型I(串行)、类型11(2比特并行)、类型III(4比特并行)、或类型IV(8比特并行)模式,作为该分组内的参数被反射回主机。 The requested mode, Type I (serial), Type 11 (2-bit parallel), Type III (4-bit parallel), or Type IV (8-bit parallel) mode, as a parameter in the packet is reflected back to the host. 图28示出接口类型确认分组的格式。 28 illustrates the format of an Interface Type Acknowledge Packet. 如图28所示,这种类型的分组结构具有分组长度、分组类型、接口类型、以及CRC字段。 28, this type of packet structure have Packet Length, Packet Type, Interface Type, and CRC fields. 这种类型的分组一般被标识为类型76分组,并且使用预先选择的固定长度4字节。 This type of packet is generally identified as a Type 76 packet, and uses a pre-selected fixed length of 4 bytes.

20. 执行类型切换分组 20. Perform Type Handoff Packets

执行类型切换分组是主机命令显示器切换至该分组内规定模式的装置。 Perform Type Handoff Packet is a host command to switch to a display means within a predetermined mode of the packet. 这与前面由接口类型切换请求分组和接口类型确认分组请求并确认的模式相同。 This is a previously Interface Type Handoff Request Packet and Interface Type Acknowledge Packet same request and acknowledgment mode. 主机和显示器应该在发出该分组后切换至经同意的模式。 Host and display should switch to the agreed upon mode of the packet sent. 显示器可能在模式变化期间丢失 The display may be lost during the mode change

并重新获得链路同步。 And regains link synchronization. 图29示出执行类型切换分组的格式。 FIG 29 illustrates the format of a Perform Type Handoff Packet. 如图29所示,这种类型的分组结构具有分组长度、分组类型、分组类型、以及CRC字段。 As shown in FIG 29, this type of packet structure have Packet Length, Packet Type, Packet Type, and CRC fields. 这种类型的分组一般在1字节类型字段内被标识为类型76分组,并且使用预先选择的固定长度4字节。 This type of packet is generally in the 1-byte type field is identified as a Type 76 packet, and uses a pre-selected fixed length of 4 bytes.

21. 前向音频信道使能分组 21. A packet before enabling the audio channel

该分组允许主机使能或禁用显示器中的音频信道。 This packet allows the host to enable or disable audio channels in the display. 这种性能是有用的,因此显示器(客户机)能在没有要由主机输出的音频时关闭音频放大器或类似电路元件 This capability is useful so the display (client) is not able to turn off audio amplifiers or similar circuit elements of the audio output from the host

以节约功率。 To conserve power. 这尤其难以把用作为指示符的音频流的存在或不存在而隐含地实现。 This is particularly difficult to use the presence or absence indicator implicitly implemented as an audio stream. 显示系统被加电的缺省状态是所有音频信道被使能。 The display system is powered up the default is that all audio channels are enabled. 图30示出前向音频信道使能分组的格式。 FIG 30 shows that the front of the packet format that allows the audio channels. 如图30所示,这种类型的分组结构具有分组长度、分组类型、音频信道使能屏蔽、以及CRC字段。 As shown in FIG 30, this type of packet structure have Packet Length, Packet Type, Audio Channel Enable Mask, and CRC fields. 这种类型的分组一般在1字节类型字段内被标识为类型78分组,并且使用预先选择的固定长度4字节。 This type of packet is generally in the 1-byte type field is identified as a Type 78 packet, and uses a pre-selected fixed length of 4 bytes.

22. 反向音频采样率分组 22. Reverse Audio Sample Rate Packet

该分组允许主机使能或禁用反向链路音频信道,并且设置这个流的音频数据采样率。 This packet allows the host to enable or disable the reverse-link audio channel, and set the audio data sample rate of this stream. 主机选择被定义为在显示性能分组中有效的采样率。 The host selects the display performance is defined as the effective sampling rate packet. 如果主机选择了无效的采样率,则显示器不会把音频流发送至主机。 If the host selects an invalid sample rate then the display will not send an audio stream to the host. 主机可以通过将采样率设为255 来禁用反向链路音频流。 The host can set the sampling rate by 255 to disable the reverse-link audio stream. 缺省状态假定显示系统初始被加电或者禁用反向链路音频流而连接。 Default state assumed that the display system is initially powered up or disable the reverse-link audio stream is connected. 图31示出反向音频采样率分组的格式。 FIG 31 illustrates the format of a Reverse Audio Sample Rate Packet. 如图31所示,这种类型的分组结构具有分组长度、分组类型、音频采样率、以及CRC字段。 As shown in FIG 31, this type of packet structure have Packet Length, Packet Type, Audio Sample Rate, and CRC fields. 这种类型的分组一般被标识为类型79分组,并且使用预先选择的固定长度4字节。 This type of packet is generally identified as a Type 79 packet, and uses a pre-selected fixed length of 4 bytes.

23. 数字内容保护开销分组 23. Digital Content Protection Overhead Packets

该分组允许主机和显示器交换与所使用的数字内容保护方法相关的消息。 This packet allows the host and a display to exchange messages related to the digital content protection method being used. 当前设计了两类内容保护,数字传输内容保护(DTCP),或高带宽数字内容保护系统(HDCP),为将来另外的保护方案指定留有余地。 The current design of the two types of content protection, Digital Transmission Content Protection (the DTCP), or High-bandwidth Digital Content Protection System (the HDCP), designated leave room for future additional protection scheme. 所使用的方法由该分组内的内容保 The method used by the content protection within the packet

护类型参数指定。 Parameter specifies the type of protection. 图32示出数字内容保护开销分组的格式。 FIG 32 shows a format of Digital Content Protection Overhead Packet. 如图32所示,这种类 32, this type

型的分组结构具有分组长度、分组类型、内容保护类型、内容保护开销消息、以及 Type packet structure have Packet Length, Packet Type, Content Protection Type, Content Protection Overhead Messages, and

CRC字段。 CRC field. 这种类型的分组一般被标识为类型80分组。 This type of packet is generally identified as a Type 80 packet.

24. 透明色使能分组 24. Transparent Color Enable Packet

透明色使能分组用于指定显示器中透明的颜色并且使能或禁用用于显示图像的透明色的使用。 Transparent Color Enable Packet is used to specify the display and the transparent color or disable the use of a transparent color for displaying images. 具有该性能的显示器将在显示性能分组的显示特征性能指示符字段的位4中报告该性能。 The display having the properties reported in the performance of 4-bit display properties of a display characteristic properties packet indicator field. 当带有透明色值的像素被写入位图时,色彩并不从前一值而改变。 When a pixel with the value of the transparent color is written to the bitmap, the color does not change from the previous value. 图33示出透明色使能分组的格式。 FIG 33 shows a format of the transparent color could enable packet. 如图33所示,这种类型的分组结构具有分组长度、分组类型、透明色使能、数据格式描述符、透明像素值、以及CRC 字段。 As shown in FIG 33, this type of packet structure have Packet Length, Packet Type, Transparent Color Enable, Data Format Descriptor, Transparent Pixel Value, and CRC fields. 这种类型的分组一般在1字节类型字段内被标识为类型81分组,并且使用预先选择的固定长度io字节。 This type of packet is generally in the 1-byte type field is identified as a Type 81 packet, and uses a pre-selected fixed length of bytes io.

25. 往返延时测量分组 25. A round trip delay measurement packet

往返延时测量分组用于测量从主机到客户机(显示器)的延时加上从客户机(显示器)回到主机的延时。 For measuring a round trip delay measurement packet from a host to a client (display) plus the delay from the client (display) back to the host delay. 该测量本来包括存在于线路驱动器和接收机以及互连子系统中的延时。 The measurement would include delayed- present in the line drivers and receivers and the interconnect subsystem. 如上面一般所述,该测量用于设定反向链路封装分组中的转向延时和反向链路速率除数参数。 As generally described above, this measurement is used to set the Reverse Link Encapsulation packet steering delay and reverse link rate divisor parameters. 当MDDI链路以特定应用的最大速度运行时,该分组最有用。 When the MDDI link is running at the maximum speed of a specific application when the packet is most useful. MDDI—Stb好像全零数据在下列字段中被发送时一样工作:全零、两个保护时间、以及测量周期。 MDDI-Stb as though all zero data when the work in the following fields are transmitted as: All Zero, both Guard Times, and a measurement period. 这使MDD乙Stb在数据速率的一半处转换,因此它可以在测量周期时被用作显示器内的周期性时钟。 This allows the MDD B Stb conversion at half the data rate so it can be used as periodic clock in the display during the measurement period.

图34示出往返延时测量分组的格式。 34 shows the format of a packet round trip delay measurement. 如图34所示,这种类型的分组结构具有分组长度、分组类型、参数CRC、选通对齐、全零、保护时间l、测量周期、保护时间2、以及驱动器再使能字段。 As shown in FIG 34, this type of packet structure have Packet Length, Packet Type, Parameter CRC, Strobe aligned, All Zero, Guard Time L, the measurement cycle, Guard Time 2, and a driver re-enable field. 这种类型的分组一般被标识为类型82分组, 并且使用预先选择的固定长度535比特。 This type of packet is generally identified as a Type 82 packet, and uses a pre-selected fixed length of 535 bits.

图35说明了发生在往返延时测量分组期间的事件时序。 Figure 35 illustrates the sequence of events occurred during the round-trip delay measurement packet. 在图35中,主机发出往返延时测量分组,由全零和保护时间1字段后的参数CRC和选通对齐字段的存在所示。 In FIG 35, the round trip delay measurement packet sent by the host, by the presence of the Parameter CRC and All Zero and Guard Time 1 fields aligned gate field shown in FIG. 延时3502在分组到达客户机显示器或处理电路系统之前发生。 Delay 3502 occurs before the packet reaches the client display or processing circuitry. 当显示器接收分组时,它在由显示器确定的测量周期开始处发出尽可能实际准确的Oxff、 Oxff、 0x0图案。 When the display receives the packet, it is sent at the beginning of the measurement period as determined by the actual display accurately Oxff, Oxff, 0x0 pattern. 显示器开始发送该序列的实际时间比从主机的角度来看测量周期的开始有所延时。 The actual time the display begins to transmit the sequence has a delay period measured from a ratio of the host's perspective begins. 该延时量正好是它使分组通过线路驱动器和接收机以及互连子系统传播的时间。 The amount of delay is precisely the time it makes packet propagating through the line drivers and receivers and the interconnect subsystem. 为使该图案从显示器传播回主机而导致相似的延时量3504。 The pattern to propagate from the display back to the host and cause a similar amount of delay 3504.

为了准确地确定横贯客户机的信号的往返延时,主机对测量周期开始后发生 In order to determine the round trip delay of the signal traverses the client accurately host occurs after the start of the Measurement Period

的比特时间周期数进行计数,直到0xff、 Oxff、 OxO序列的开始在到达后被检测到 The time period for counting the number of bits, until the start of 0xff, Oxff, OxO sequence is detected after the arrival

为止。 until. 该信息用于确定往返信号从主机传递到客户机并再次返回所用的时间量。 This information is used to determine the round trip signal is transmitted from the host to the client and the amount of time taken back again. 然后,大约该数量的一半归因于为信号到客户机的单向通路所创建的延时。 Then, about half of the amount is attributed to the delay of the signal to the client a one-way path created.

显示器在发出最后一位Oxff、 Oxff、 0x0图案后几乎立即禁用其线路驱动器。 After the last issued a display Oxff, Oxff, 0x0 pattern almost immediately disables its line drivers. 保护时间2使显示器的线路驱动器具有在主机发出下一分组的分组长度之前完全进入高阻态的状态。 Guard Time 2 causes the display state of the line driver has full access to the high impedance state before the host sends the next packet of the packet length. 休眠拉上和拉下电阻器(见图42)确保MDDI—Data信号在主机和显示器中均禁用线路驱动器的间隔中被保持在有效的低电平。 Sleep and pull down resistors (see FIG. 42) ensure that the MDDI-Data signals in both the host and display the line driver is disabled interval is maintained at a valid low level.

D.分组CRC D. Packet CRC

CRC字段出现在分组的末端,有时出现在分组内某些多个关键参数之后,后者的分组具有很大的数据字段,并因此具有传输期间增加了的出错可能性。 The CRC fields appear at the end of a packet, sometimes after certain more critical parameters in packets, which packets having a large data field, and thus has an increased likelihood of errors during transmission. 在具有两个CRC字段的分组内,当仅使用一个时,CRC发生器在第一CRC之后被重新初始化, 因此跟在长数据字段后的CRC计算未受到分组开始处参数的影响。 In packets that have two CRC fields, when only a, CRC generator is re-initialized after the first CRC, the CRC calculation with the thus long data field are not affected by the parameters at the beginning of the packet.

在本发明的示例性实施例中,用于CRC计算的多项式被称为CRC-16,即X16+X15+X2+XQ。 In an exemplary embodiment of the present invention, the polynomial used for the CRC calculation is known as CRC-16, i.e., X16 + X15 + X2 + XQ. 图36示出实现本发明时有用的CRC发生器和检验器3600的简单实现。 Figure 36 shows a simple implementation of a CRC generator and a useful test of 3600 implementing the invention. 在图36中,CRC寄存器3602刚好在分组第一比特传输前被初始化为值0x0001, 该第一比特在Tx—MDDI—Data_Before_CRC线上输入,然后该分组的字节被移位至以LSB第一开始的寄存器中。 In FIG. 36, CRC register 3602 just before the first bit in the packet transmission is initialized to a value of 0x0001, the first bit in the Tx-MDDI-Data_Before_CRC input line, then the bytes of the packet are shifted to the LSB-first registers starting. 注意到该图中的寄存器比特数对应于所用的多项式阶次,而非由MDDI使用的比特位置。 FIG noted that the number of bits in the register corresponds to the order of the polynomial being used, and not the bit positions used by the MDDI. 更有效的是以单个方向移位CRC寄存器,这导致CRC比特15出现在MDDI CRC字段的比特位置0, CRC寄存器比特14出现在MDDI CRC字段比特位置l,依此类推,直到到达MDDI比特位置14为止。 Is more effective shift the CRC register in a single direction, which results in 15 CRC bits appear in bit position 0 of the MDDI CRC field, the CRC register bit 14 in MDDI CRC field bit appears position L, and so forth until MDDI bit position 14 until.

作为示例,如果显示请求和状态分组的分组内容为:0x07、 0x46、 0x000400、 OxOO(或表现为字节序列:0x07、 0x00、 0x46、 0x00、 0x04、 0x00、 0x00),并且用多路复用器3604和3606以及与非(NAND)门3608的输入来提交, Tx—MDDI—Data—With—CRC线上产生的CRC输出是OxOeal (或被表现为序列Oxal、 OxOe)。 As an example, if the display contents of the packet Request and Status Packets are: 0x07, 0x46, 0x000400, OxOO (or expressed as a sequence of bytes: 0x07, 0x00, 0x46, 0x00, 0x04, 0x00, 0x00), and multiplexed with 3604 and 3606 and the input of the NAND submit (the NAND) gate 3608, CRC output Tx-MDDI-Data-with-CRC is generated by the line OxOeal (or sequences expressed as Oxal, OxOe).

当CRC发生器和检验器3600被配置为CRC校验器时,在Rx_MDDI—Data线上接收到的CRC是多路复用器3604和与非门3608的输入,并且与用或非门3610、 异或(XOR)门3612和与门3614在CRC寄存器中找到的值逐位比较。 When CRC generator and checker 3600 is configured as a CRC checker, the Rx_MDDI-Data received on the line is a CRC-input NAND gate 3608 and multiplexers 3604 and 3610 with the NOR gate, comparing the value of a bitwise exclusive oR (XOR) gate 3612, and aND gate 3614 is found in the CRC register. 注意到图36 Notice 36

所示的示例电路能在给定的CHECK_CRC—NOW窗(见图37b)内输出不止一个CRC差错信号。 The circuit shown in the example can output more than one CRC error signal within a given CHECK_CRC-NOW window (see FIG. 37b). 因此,CRC差错计数器仅会对CHECK—CRC—NOW活动的每个间隔内的第一CRC 差错实例进行计数。 Accordingly, CRC error counter will only a first CRC error instance within each interval CHECK-CRC-NOW activity counts. 如果被配置成CRC发生器,则CRC在与分组末端相符的时间被作为时钟节拍从CRC寄存器输出。 If configured as a CRC generator the CRC is clocked out from a CRC register at a time consistent with the end of the packet.

图37a和37b中用图表说明了输入和输出信号以及使能信号的定时。 FIGS. 37a and 37b illustrate the graphs with input and output signals and the enable signal causes the timing. 图37a 中用Gen—Reset、 Check—CRC_Now、 Generate—CRC—Now和Sending—MDDI—Data信号、 以及Tx—MDDI_Data—Before—CRC和Tx—MDDI—Data—With—CRC信号的状态(O或l)示出CRC的产生和数据分组的传输。 With Gen-Reset, Check-CRC_Now, Generate-CRC-Now, and Sending-MDDI-Data signal, and a status (O or l Tx-MDDI_Data-Before-CRC and Tx-MDDI-Data-With-CRC signals 37a of FIG. ) shows transmit data packets and generates the CRC. 图37b中用Gen—Reset、 Check—CRC—Now、 Generate—CRC—Now和Sending—MDDI_Data信号、以及Rx—MDDI—Data和CRC差错信号的状态示出数据分组的接收和CRC值的校验。 FIG 37b by Gen-Reset, Check-CRC-Now, Generate-CRC-Now, and Sending-MDDI_Data signals, and the state Rx-MDDI-Data and CRC error signals of the checksum and CRC value of the received data packet.

V.自休眠的链路重启 V. link restart from hibernation

当主机从休眠状态重新启动前向链路时,它将MDDI_Data激励至逻辑1状态大约150微秒,然后激活MDDI—Stb并同时将MDDI一Data激励至逻辑零状态50微秒, 然后通过发送子帧报头分组来开始前向链路话务。 When the host before restart from hibernation state to the link, it will encourage MDDI_Data to a logic one state for about 150 microseconds, and then activates MDDI-Stb and simultaneously excited MDDI Data to a logic zero state 50 microseconds, and then by sending a Sub frame header packet before to start service to link words. 这一般通过在信号间提供足够的稳定时间而允许在发出子帧报头分组之前解决总线争用。 This typically by providing sufficient stabilization time between the emitted signal allowing bus contention resolved before the sub-frame header packet.

当客户机、这里是显示器、需要来自主机的数据或通信时,它将MDDI—DataO 线激励至逻辑1状态大约70微秒,然而可以根据期望使用其它时间段,然后通过将其放置在高阻态而禁用该驱动器。 When the client, here a display, needs data or communication time from the host computer, it MDDI-DataO to a logic 1 state excitation line about 70 microseconds, but other time periods may be used as desired, and then placing it in a high impedance disabling the drive state. 这个动作使主机开启或重启前向链路(208)上的数据话务,并且轮询客户机关于其状态。 This action causes the host to open or forward link restart data traffic on the (208) and to poll the client state bodies thereon. 主机必须在50微秒内检测请求脉冲的存在,然后开始启动序列,将MDDI—DataO激励至逻辑1 150微秒并且激励至逻辑零50微秒。 The host must detect the presence of the request pulse within 50 microseconds, and then begin the startup sequence, the excitation MDDI-DataO to a logic 1150 microseconds and 50 microseconds excitation to a logic zero. 如果显示器在逻辑1状态中检测到MDDI—DataO多于50微秒,则它必须不发送服务请求脉冲。 If the monitor detects the logic 1 state, the MDDI-DataO than 50 microseconds, then it must not send a service request pulse. 下面进一步讨论与休眠处理和启动序列有关的时间的选择性质和时间间隔的容差。 Further discussion of the nature and the time interval selected tolerance related to the hibernation processing and start up sequence time below.

图38中说明了没有争用的典型服务请求事件3800的处理步骤示例,其中为了方便说明而用字母A、 B、 C、 D、 E、 F和G标明事件。 FIG 38 illustrates an example of the process of step 3800 events for a typical service request with no contention, which for convenience of explanation with the letters A, B, C, D, E, F and G indicate the event. 当主机将链路关闭分组(Link Shutdown Packet)发送至客户机装置来通知它链路将转变为低功率休眠状态时,过程在点A开始。 When the host sends a Link Shutdown packet (Link Shutdown Packet) to the client device to inform it that the link will transition to a low-power hibernation state, the process begins at point A. 下一步中,主机通过禁用MDDI—DataO驱动器并将MDDI—Stb驱动器设为逻辑零而进入低功率休眠状态,如点B所示。 Next, the host enters the low-power hibernation state by disabling set to logic zero drive MDDI-DataO and MDDI-Stb drivers, point B as shown in FIG. MDDI—DataO由高阻抗偏置网络驱动至零电平。 MDDI-DataO is driven by a high-impedance bias network to a zero level. 在某段时间之后,客户机通过如点C所示将MDDI—DataO驱动为逻辑1电平而将服务请求脉冲发送至主机。 After a certain period of time, the client through the point C as shown in the MDDI-DataO driven to a logic 1 level and the service request pulse to the host. 主机仍旧用高阻抗偏置网络发出零电平, Host still emit zero level by a high-impedance bias network,

而客户机内的驱动器迫使线路变为逻辑l电平。 And the driver in the client forces the line to a logical level l. 在50微秒内,主机认出服务请求 Within 50 sec, the host recognizes the service request

脉冲,并且通过使能其驱动器而在MDDI一DataO上发出逻辑l电平,如点D所示。 Pulse, and the issue logic l level, as shown at point D on a MDDI DataO by enabling its driver. 然后,客户机停止试图发出服务请求脉冲,而且客户机将其驱动器置为高阻态,如点E所示。 The client then attempts to stop the service request pulse, and the client places its driver high-impedance state, such as point E in FIG. 主机将MDDI—Data0驱动为逻辑零电平50微秒,如点F所示,并且还以与MDDI_DataO上的逻辑零电平一致的方式开始产生MDDI_Stb。 The host drives MDDI-Data0 to a logic-zero level 50 microseconds, as indicated by point F, and also with the logic-zero level in the same manner MDDI_DataO start generating MDDI_Stb. 在将MDDI_DataO 置为零电平并且驱动MDDI一Stb 50微秒之后,主机开始通过发送子帧报头分组而在前向链路上开始发送数据,如点G所示。 After MDDI_DataO to zero level and driving MDDI Stb 50 microseconds a host by sending a Sub-frame Header packet to the first to start sending data on the forward link, such as point G in FIG.

图39中说明了类似示例,其中在链路重启序列开始之后发出服务请求,且事件再次用字母A、 B、 C、 D、 E、 F和G来标记。 FIG 39 illustrates a similar example in which the link restart sequence begins after the service request, and the event again by the letters A, B, C, D, E, F, and G are labeled. 这再现了最差情况,其中来自客户机的请求脉冲到达最接近于破坏子帧报头分组。 This reproduces the worst case, where a request pulse from the client arrives closest to corrupting the Sub-frame Header Packet. 当主机再次将链路关闭分组发送至客户机来通知它链路将变为低功率休眠状态时,过程在点A处开始。 When the host again sends a Link Shutdown packet to the client to inform it that the link will become a low-power hibernation state, the process begins at point A. 下一步中,主机通过禁用MDDI一DataO驱动器并将MDDI—Stb驱动器设定为零电平而进入低功率休眠状态,如点B所示。 Next, the host computer by disabling the MDDI DataO driver and a MDDI-Stb driver is set to zero and entering a low power level hibernation state, as indicated by point B. 跟前面一样,MDDI一DataO由高阻抗偏置网络驱动至零电平。 As before, MDDI DataO is driven by a high-impedance bias network to a zero level. 在一段时间之后,客户机通过如点C所示将MDDI一DataO驱动为逻辑1电平150微秒而开始链路重新启动序列。 After a period of time, the client commences the link restart sequence by point C as a MDDI DataO driven to a logic 1 level as shown in 150 microseconds. 在链路重启序列开始后过去50微秒之前,显示器还在70微秒的持续时间内使MDDI—DataO有效,如点D所示。 Before the last 50 microseconds after the link restart sequence begins the display also the duration of 70 microseconds so that MDDI-DataO valid, as shown at point D. 这种情况的发生是由于显示器需要向主机请求服务并且未认识到主机已经开始了链路重启序列。 This happens because the display is a need to request service from the host and does not recognize that the host has already begun the link restart sequence. 然后,客户机停止试图施加服务请求脉冲,而且客户机将其驱动器置为高阻态,如点E所示。 The client then attempts to stop the application of the service request pulse, and the client places its driver high-impedance state, such as point E in FIG. 主机继续将MDDI一DataO驱动为逻辑1电平。 The host continues to drive MDDI DataO to a logic one level. 主机将MDDI一DataO驱动为逻辑零电平50微秒,如点F所示,并且还以与MDDLDataO上的逻辑零电平一致的方式开始产生MDDI—Stb。 The host MDDI DataO driven to a logic-zero level 50 microseconds, as indicated by point F, and also with the logic-zero level in the same manner MDDLDataO start generating MDDI-Stb. 在将MDDI—DataO置为零电平并且激励MDDI—Stb 50微秒之后,主机开始通过发送子帧报头分组而在前向链路上开始发送数据,如点G所示。 After MDDI-DataO to zero level and MDDI-Stb 50 microseconds excitation host by sending a Sub-frame Header packet to the first to start sending data on the forward link, such as point G in FIG.

VI.接口电气规范 VI. Interface Electrical Specifications

在本发明的示例性实施例中,反向不归零(NRZ)格式的数据用数据选通信号或DATA-STB格式来编码,这允许时钟信息被嵌入在数据和选通信号内。 In an exemplary embodiment of the present invention, Non Return to Zero (NRZ) data format with a data strobe signal or DATA-STB encoding format, which allows clock information to be embedded in the data and strobe signals. 时钟可以无须复杂的锁相环电路而被恢复。 Without complex clock phase locked loop circuit can be restored. 数据在双向差分链路上被传送, 一般用有线电缆来实现,然而如前所述,也可以使用其它导线、印刷电线或传输元件。 Data is transmitted on the bidirectional differential link, generally implemented using a wired cable, as described above, however, also possible to use other conductors, printed wires, or transfer elements. 选通信号(STB) 在仅由主机驱动的单向链路上传送。 Strobe signal (STB) is transmitted on a unidirectional link is driven only by the host. 选通信号在紧接的状态0或1时反转其值(O 或l),这在数据线或信号上也是一样。 Inverted strobe signal value (O or l) immediately state 0 or 1, which is the same or signal on the data line.

图40用图表示出怎样用DATA-STB编码发送诸如比特"1110001011"这样的 Figure 40 shows how to send such as bits "1110001011" using DATA-STB encoding with FIG.

数据序列的示例。 Sample data sequence. 在图40中,DATA信号4002在信号时序图的顶线上示出,STB 信号4004在第二根线上示出,各适当地时间对齐(公共起始点)。 In FIG 40, DATA signal 4002 is shown on the top line of a signal timing chart, the STB signal 4004 is shown on a second wire pair, the fitness of local time alignment (common starting point). 随着时间的推移, 当DATA线4002 (信号)上发生状态变化时,STB线4004(信号)保持前面的状态,因此,DATA信号的第一"1"状态与STB信号的起始值第一"0"状态相关。 Over time, when the state change on the DATA line 4002 (signal), STB line 4004 (signal) held in front of the state, the first start value "1" state for the STB signal and a first signal DATA "0" state-related. 然而, 如果或当DATA信号的状态、电平未变化时,贝ljSTB信号切换到相对的状态即前例中的"1",正如图40中DATA正提供另一"1"值的情况。 However, if or when the state of the DATA signal, when the level has not changed, shellfish ljSTB signal is switched to the opposite state in the previous example, ie "1", as in FIG. 40 where the DATA is providing another case value "1." 也就是说,DATA和STB 间每比特周期总是有一个并且只有一个变换。 That is, between DATA and STB every bit period there is always one and only one transformation. 因此,当DATA信号保持在"1"吋, STB信号这次再次转变为"0"并且当DATA信号电平改变为"0"时保持该电平或值。 Thus, when the DATA signal stays at "1" inch, the STB signal transitions again, this time to "0" and holds the signal level when the DATA is changed to "0" the level or value. 当DATA信号保持在"1"时,STB信号切换至相反状态,即前例中的"1", 当DATA信号改变或者保持电平或值时依此类推。 When the DATA signal stays at '1', the STB signal is switched to the opposite state, i.e., in the previous example, "1", and so on as the DATA signal changes or holds the level or value.

在接收到这些信号之后,在DATA和STB信号上进行异或(XOR)操作以产生时钟信号4006,这在期望数据和选通信号的相对比较的时序图底部示出。 After receiving these signals, an exclusive OR (XOR) operation on the DATA and STB signals to produce a clock signal 4006, which is desirable in the timing chart of relatively strobe and data shown at the bottom. 图41示出一个电路系统示例,用于从主机处的输入数据产生DATA和STB输出或信号,然后从客户机处的DATA和STB信号中恢复或重新捕获该数据。 41 shows one example circuitry for generating the DATA and STB outputs or signals from input data at the host, and then recovering from the DATA and STB signals at the client, or recapture the data.

在图41中,发射部分400用于产生并在中间信号通道4102上发送原始DATA 和STB信号,而接收部分4120用于接收信号并恢复数据。 In Figure 41, the transmitting portion 400 for generating and transmitting the original DATA and STB signals at the intermediate signal path 4102, while a reception portion 4120 for receiving the signals and recover the data. 如图41所示,为了将数据从主机传送至客户机,DATA信号与用于触发电路的时钟信号一起被输入到两个D 型触发器电路元件4104和4106。 As shown, in order to transfer data from a host to a client, DATA and clock signals for the flip-flop circuit 41 is input to two D-type flip-flop with the circuit elements 4104 and 4106. 然后,两个触发器电路输出(Q)用两个差分线路驱动器4108和4110(电压模式)分别分裂成差分对信号MDDI—DataO+、MDDI_DataO -以及MDDI—Stb+、 MDDI_Stb-。 Then, two flip-flop circuit outputs (Q) 4108 and 4110 (voltage mode) using two differential line drivers are split into a differential pair of signals MDDI-DataO +, MDDI_DataO - and MDDI-Stb +, MDDI_Stb-. 三输入端异或非(XNOR)门、电路或逻辑元件4112被连接,用于接收DATA和两个触发器的输出,并且产生提供第二触发器的数据输入的一个输出,这又产生MDDI—Stb+、 MDDI—Stb-信号。 Three-input exclusive NOR (the XNOR) gate, circuit, or logic element 4112 is connected to receive the DATA and outputs of both flip-flops, and generates a second output of a flip-flop data input, which in turn results MDDI- Stb +, MDDI-Stb- signals. 为了简便,XNOR门具有反相泡,用于指示它有效地使产生选通的触发器的Q输出反相。 For simplicity, the XNOR gate has an inverting bubble, for indicating that effective to produce gating Q output of flip-flop inverted.

在图41的接收部分4120中,MDDI_DataO+、 MDDI—DataO-和MDDI—Stb+、 MDDI_Stb-信号分别由两个差分线接收机4122和4124的每一个所接收,接收机从差分信号产生单个输出。 In the receiving section 4120 of FIG. 41, MDDI_DataO +, MDDI-DataO- and MDDI-Stb +, 4122 and 4124 each MDDI_Stb- signals are received by two differential line receiver, the receiver generating a single output from the differential signal. 然后,放大器的输出被输入两个输入异或(XOR)门、电路或逻辑元件的各输入端,后者产生时钟信号。 Then, the output of the amplifier is input to each input terminal two exclusive OR (XOR) gate, circuit, or logic element, which generates a clock signal. 时钟信号用于触发两个D型触发器电路4128和4130的每一个,后者通过延时元件4132接收DATA信号经延时的形式, 其一(4128)产生数据"0"值而另一个(4130)产生数据"1"值。 Clock signal for triggering the two D flip flop circuits 4128 and 4130 each of which is received by the delay element 4132 delays the signal DATA form, one (4128) generates data '0' values ​​and the other ( 4130) generating a data value "1". 时钟也具有来自XOR逻辑的独立输出。 Clock is also an independent output from the XOR logic. 由于时钟信息分布在DATA和STB线之间,因此状态间的信号变换都比时钟速率的一半慢。 Since the clock information is distributed between the DATA and STB lines, the signal conversion between states than half the slow clock rate. 由于用DATA和STB信号的异或处理再现了该时钟, With XOR since DATA and STB signals to reproduce the clock,

因此系统有效地容许与时钟信号直接在单个专用数据线上被发送的情况相比输入数据和时钟间偏离的两倍。 Thus the system effectively double the permissible deviation between the input data and clock with a clock signal directly in case of a single dedicated data line to be transmitted compared.

为了使对噪声负面影响的抵抗力最大而以差分模式操作MDDI—Data+、 MDDI一Data-、 MDDI—Stb+和MDDI_Stb-信号。 In order to make the resistance of the negative impact of noise on the maximum and differential mode MDDI-Data +, MDDI a Data-, MDDI-Stb + and MDDI_Stb- signals. 差分信号通道的各部分是用传送信号的电缆或导线的特征阻抗的一半来源端接的。 Portions of the differential signal path is characterized by a signal transmission cable or line source impedance termination half. MDDI—Data+和MDD^Data-在主机和客户端都是源端接的。 And MDDI-Data + MDD ^ Data- host and client are source terminated. 由于在给定时间处这两个驱动器仅有一个是活动的,因此在传输链路的源处总是存在端接。 Since both drives at a given time only one is active, there is always at the source end of the transmission link. MDDI—Stb+和MDDI—Stb-信号仅由主机驱动。 MDDI-Stb + and MDDI-Stb- signal is driven only by the host.

图42示出一种示例性元件的配置,用于实现驱动器、接收机、并且传输信号的终止,作为创造性MDD接口的一部分。 FIG 42 shows an exemplary configuration of the element, for achieving the drivers, receivers, and the transmission signal is terminated, as a part of the inventive MDD interface. 而表VII示出MDDI—Data和MDD:LStb的相应DC电气规范。 And Table VII shows the MDDI-Data and MDD: LStb the corresponding DC electrical specifications. 该示例性接口使用低电压传感,这里是200毫伏,具有低于l 伏特的功率漂移以及低功率消耗。 This exemplary interface uses low voltage sensing, here 200 mV, with less than l volt power drift and low power consumption.

表vn<table>table see original document page 51</column></row> <table> Table vn <table> table see original document page 51 </ column> </ row> <table>

表VIII示出差分线路驱动器和线路接收机的电气参数和特性。 Table VIII shows the electrical parameters and characteristics of the differential line drivers and line receivers. 功能上,驱动 Functionally, the drive

器将输入端上的逻辑电平直接传送到正的输出端,并将输入端的反相传送到负的输出端。 Is the logic level on the input directly to a positive terminal of the output terminal, and the input terminal of the counter to a negative output terminal. 从输入端到输出端的延时很好地与差分地被驱动的差分线相匹配。 End to the output of the delay well matched to the differential line is driven from a differential input. 在大多数实现中,为了使功耗和电磁辐射最小,输出端的电压漂移比输入端的漂移小。 In most implementations, in order to minimize power consumption and electromagnetic radiation, than the voltage at the output drift of the input drift. table

VII给出约为0.8伏的最小电压漂移。 VII gives the minimum voltage is about 0.8 volts drift. 然而可以使用其它值,这对于本领域技术人 However, other values ​​may be used, which for the person skilled in the art

员而言是已知的,发明人根据设计限制在某些实施例中构想了在0. 5或0. 6数量级上的较小值。 Members terms are known, the inventors according to the design limits in certain embodiments contemplated embodiment a smaller value in the 0.5 or 0.6 orders of magnitude.

差分线接收机具有与高速电压比较器相同的特性。 High-speed differential line receivers have the same characteristic voltage comparator. 图41中,没有反相的输入是正输入,而有反相的输入是负输入。 41, there is no input to the inverting input is positive, while the inverting input is a negative input. 如果:(Vinput+)-(Vinput—)大于零,则输出为逻辑l。 If: (Vinput +) - (Vinput-) is greater than zero, the output is a logic l. 另一说明这点的方式是具有非常大(实质上无限)增益的差分线放大器,其输出在逻辑0和1电压电平处被限幅。 Another way to illustrate this point with very large (virtually infinite) gain differential line amplifier whose output is clipped at logic 0 and 1 voltage levels.

应该使不同对之间延时的偏离最小,从而以最高潜在速度操作差分传输系统。 It should make the minimum delay between different pairs departing thereby operating at the highest potential speed differential transmission system.

在图42中,示出主机控制器4202以及客户机即显示器控制器4204在通信链路4206上传送分组。 In FIG 42, illustrates a host controller 4202 and a client that is a display controller 4204 transmits a packet over the communication link 4206. 主机控制器使用了一系列三个驱动器4210、 4212和4214来接收要被传送的主机DATA和STB信号,以及接收要被传送的客户机数据(Data)信号。 The host controller uses a series of three drivers 4210, 4212 and 4214 to receive the host DATA and STB signals to be transmitted, and the client data (Data) received signal to be transmitted. 负责主机DATA通过的驱动器使用使能信号输入来仅当需要从主机到客户机的传送时才允许激活该通信链路。 Host responsible DATA drive by using the enable signal input from the host only needs to be transferred to the client only allow activation of the communication link. 由于STB信号作为数据传输的一部分而形成,因此不为该驱动器(4212)使用任何附加的使能信号。 As part of the STB signal is formed due to the data transmission, so that drive is not (4212) using any additional enable signal. 各DATA和STB驱动器的输出分别与终端阻抗即电阻器4216a、 4216b、 4216c和4216d相连。 The output of each of the DATA and STB drivers respectively i.e. termination impedance resistors 4216a, 4216b 4216c and connected, 4216d.

终端电阻器4216a和4216b还作为用于STB信号处理的客户端接收机4220的输入端阻抗,而附加的终端电阻器4216e和4216f分别在客户机数据处理接收机4222的输入端上与电阻器4216c和4216d串联。 Terminal resistors 4216a and 4216b also serves as a client for the STB signal processing at the receiver input impedance of 4220, while additional termination resistors 4216e and 4216f are the client data processing on the input of the receiver 4222 and the resistor 4216c and 4216d series. 客户机控制器内的第六驱动器4226 用于准备要从客户机被传送至主机的数据信号,其中输入端的驱动器4214通过终端电阻器4216c和4216d来处理要被传送至主机进行处理的数据。 A sixth driver 4226 in the client controller is used to prepare the data from the data signal transmitted to the client host, wherein the input of the driver 4214 through the terminal resistors 4216c and 4216d processed to be transferred to the host for processing.

两个附加电阻器4218a和4218b分别被放置在终端电阻器以及地和电压源4220之间,作为其它处所述的休眠控制的一部分。 Two additional resistors 4218a and 4218b are placed between the termination resistors and ground and a voltage source 4220, as part of the other of said sleep control. 电压源用于将传输线驱动到前述的高或低电平来管理数据的流动。 A voltage source for driving transmission lines to the high or low level to manage the flow of data.

上述驱动器和阻抗可以作为分立元件或作为专用集成电路(ASIC)而形成,后者充当效能成本更有效的编码器或解码器解决方案。 Above drivers and impedances can be used as discrete components or as an application specific integrated circuit (ASIC) is formed, which acts as a more cost-effective performance of the encoder or decoder solution.

可以容易地看见,用标为MDDI—Pwr和MDDI—Gnd的信号在一对导线上将功率从主机装置传输到客户机装置,或显示器。 It can be easily seen, with labeled MDDI-Pwr and MDDI-Gnd signal on one pair of wires from a power master device transmits to the client device, or display. 信号的MDDI—Gnd部分充当参考地以及显示器装置的电源返回通道或信号。 MDDI-Gnd portion of the signal acts as the reference ground and the power of the display device or signal return channel. MDDI一Pwr信号充当由主机装置驱动的显示器装置电源。 MDDI Pwr signal acts as a display means of power driven by the host device. 在示例性配置中,对于低功率应用而言,允许显示器装置提取500毫安。 In the exemplary configuration, for low power applications, the display device allowing extraction 500 mA. MDDI_Pwr信号可从譬如但不限于驻留在主机装置内的锂离子型电池或电池组这样的便携式功率源被提供,并且可以关于MDDI—Gnd在3. 2到4. 3伏范围内变化。 MDDI_Pwr signal may be from but is not limited to such a portable power source lithium-ion type battery or battery pack residing within such host device is provided, and may vary on MDDI-Gnd in the range of 3.2 to 4.3 volts.

VII.定时特性A.综述 . A. Summary VII Timing Characteristics

图43中说明了由客户机为了保护来自主机的服务并且由主机为了提供这种服务所使用的步骤和信号电平。 FIG 43 illustrates a service by a client in order to protect from the host and by the host to provide such service steps and signal levels used. 图43中,所述第一部分信号示出从主机传出的链路关闭分组,然后数据线用高阻抗偏置电路驱动至逻辑零状态。 In FIG 43, the first portion of the signal from the host Shutdown Packet is shown the outgoing link, and data line driver to a logic zero state using the high-impedance bias circuit. 客户机显示器、或者主机未发射任何数据,其驱动器是禁用的。 The client display, or host is not transmitting any data, which driver is disabled. 由于MDDI—Stb在链路关闭分组期间是活动的,因此可以在底部看见MDDI一Stb信号线的一系列选通脉冲。 Since MDDI-Stb during the Link Shutdown Packet is active, it is possible to see a series of strobe pulses MDDI Stb signal line at the bottom. 一旦该分组结束并且逻辑电平在主机将偏置电路和逻辑驱动为零时变为零,则MDDI—Stb信号线也变为零电平。 Once this packet ends and the logic level to zero when the host drives the bias circuit and logic to zero, the MDDI-Stb signal line becomes zero level. 这表示来自主机的最后一次信号传输或服务的终止,并且可能在过去任何时间发生,包括它以示出服务的先前的停止,以及服务开始前的信号状态。 This indicates that the last signal transfer or service from the host termination, and may occur at any time in the past, including the previously stopped service it is shown, and a signal state before the start of service. 如果需要,可以仅为了将通信链路重置为适当状态而发送这种信号,而不需"知道" 由该主机已采取的先前通信。 If desired, a communication link may only be reset to the appropriate state and transmits this signal without the need to "know" that a host has taken previous communication.

如图43所示,来自客户机的信号输出最初被设为零逻辑电平。 43, the output signal from the client is initially set to zero logic level. 换言之,客户机输出处在高阻抗,驱动器被禁用。 In other words, the client output in a high impedance, the drive is disabled. 当请求服务时,客户机启动其驱动器并且将服 When requesting services, the client starts its drive and the clothes

务请求发送至主机,这是一段时间,指明为t^viee,在此期间线被驱动为逻辑1电平。 Service request sent to the host, which is a period of time, indicated as t ^ viee, during this line is driven to a logic one level. 然后, 一段时间过去,或者可能在主机检测请求之前需要,称为th。 Then, over a period of time, or may be required before the host detects the request, referred to th. st—deteet, 在这之后主机通过将信号驱动为逻辑1电平而以链路起始序列响应。 st-deteet, after which the host responds to the starting sequence by the link driving signal is a logic 1 level. 这里,主机撤销该请求并且禁用服务请求驱动器,使得来自客户机的输出线再次变为零逻辑电 Here, the revocation request and the host disables the service request driver so that the output line from the client goes to zero logic level again

平。 level. 在这段时间内,MDDI—Stb信号处在逻辑零电平。 During this time, MDDI-Stb signal is at a logic zero level.

主机在时间段t„sta^high内将主机数据输出驱动为"1"电平,之后主机将逻 Host time period t "sta ^ the host data output driven high to" 1 "level, then the host logic

辑电平驱动为零并且在时间段t^加H。 Series driving level zero and the time period t ^ plus H. w内激活MDDI—Stb,之后第一前向话务以帧 W activating the MDDI-Stb, after the first forward traffic frame

报头分组开始,然后前向话务分组被传输。 Header Packet, then before it is transmitted to the traffic packets. MDDI—Stb信号在时间段t^^t—^和随后的帧报头分组期间处于活动。 MDDI-Stb signal during the time period t ^^ t- ^ and the subsequent Frame Header Packet is active.

表VIII示出上述各种时间段长度的代表时间,以及与示例性最小和最大数据 Table VIII shows representative of the time period length of the above, and the exemplary minimum and maximum data

速率的关系,其中:<formula>formula see original document page 53</formula><table>table see original document page 54</column></row> <table>本领域的技术人员可以容易地理解,图41和42所述的单独元件的功能是众所周知的,图42中元件的功能由图43中的定时图确定。 Relationship rate, wherein: <formula> formula see original document page 53 </ formula> <table> table see original document page 54 </ column> </ row> <table> skilled in the art can readily appreciate that FIG. 41 and 42 the function of the individual elements are well known, functional elements in FIG. 42 is determined by the timing chart in FIG 43. 从图41中省略图42所示的串联终止和休眠电阻器细节,这是因为描述怎样执行数据一选通(Data-Strobe) 编码并且从中恢复时钟不需要该信息。 Sleep from the series terminating resistors and the details shown in FIG. 42 are omitted in FIG. 41, because the description of how to perform a data strobe (Data-Strobe) encoding and recover the clock information is not required.

B.数据一选通(Data-Srobe)时序前向链路 B. Before a data strobe (Data-Srobe) Timing Forward Link

表IX示出从主机驱动器输出在前向链路上数据传输的切换特性。 Table IX shows the output characteristic is switched to the forward link data transmission from the host driver. 表IX给出发生某信号转变的期望最小和最大时间相对于一般时间的表格形式。 Table IX gives a signal transition occurs desired minimum and maximum time with respect to the general form of a table of time. 例如,数据值开始到结束时发生的转变ttd(Kh。st—。utput),即DataO到DataO变换所用的一般时间长度为ttbit,而最小时间约为ttbit-0.5纳秒,最大约为ttbit+0.5纳秒。 For example, transition ttd (Kh.st-.utput) start to the end of the data values ​​occurs, i.e. DataO to DataO length of time generally used for the conversion ttbit, while the minimum time is about ttbit-0.5 nsec, the maximum is about ttbit + 0.5 ns. 图44中说明了DataO、其它数据线(DataX)和选通线(Stb)上转变之间的相对间隔,其中示出DataO到Strobe、 Strobe到Strobe、 Strobe到DataO、 DataO至U非DataO、非DataO 到非DataO、非DataO到Strobe、以及Strobe到非DataO转变,分别被称为ttds— FIG 44 illustrates the DataO, the relative spacing between transitions on other data lines (DataX), and the strobe lines (Stb), is illustrated DATAO to Strobe, Strobe to Strobe, Strobe to DataO, DataO to U non-DataO, non- DATAO non DATAO, non DATAO to Strobe, and Strobe to non-DATAO transition, are referred to as ttds-

(host-output) 、 ttss_(host_output) 、 ttscj—(host-output) 、 ttcjdx_(host-output) 、 ttdxdx—(host-output) 、 ttcjxs_ (host-output) (Host-output), ttss_ (host_output), ttscj- (host-output), ttcjdx_ (host-output), ttdxdx- (host-output), ttcjxs_ (host-output)

以及 as well as

^tsdx-(host-output) 0 ^ Tsdx- (host-output) 0

表IX Table IX

<table>table see original document page 54</column></row> <table> <Table> table see original document page 54 </ column> </ row> <table>

<table>table see original document page 55</column></row> <table> <Table> table see original document page 55 </ column> </ row> <table>

表X中示出在前向链路上传输数据的相同信号的客户机接收机输入的一般MDDI定时要求。 Table X shows a general front MDDI client receiver input to the same data signals transmitted on the forward link timing requirements. 由于讨论的是相同的信号然而是时间延时的,因此不需要新的图来说明信号特性或相应标记的意义,这是本领域技术人员所能理解的。 Since the same signal is discussed but time delayed, no new and therefore will be described in FIG correspondingly labeled signal characteristics or meaning, as one skilled in the art can understand.

表X Table X

<table>table see original document page 55</column></row> <table> <Table> table see original document page 55 </ column> </ row> <table>

图45和46分别说明延时的存在,延时在主机禁用或启用主机驱动器时会发生。 45 and 46 illustrate the presence of delay, the delay will occur when the host disables or enables the host driver. 在主机传递某些分组的情况下,譬如反向链路封装分组或往返延时测量分组, 主机在期望分组被传递之后禁用线路驱动器,期望分组有图45所述的已被传输的参数CRC、选通对齐以及全零分组。 In the case of some host transfer packet, such as the Reverse Link Encapsulation Packet or the round trip delay measurement packet, the host disables the line driver after the desired packets are transmitted, a desired packet has been transmitted in FIG Parameter CRC of claim 45, gating alignment and All zero packets. 然而,如图45所示,线状态不必要从"0"瞬时切换至期望的较高值,然而这潜在地可用现有的某种控制或电路元件来实现,但需要一段时间,称为主机驱动器禁用延时时间段,来响应。 However, as shown in FIG. 45, the unnecessary line status is switched from "0" to a desired higher value instantaneously, although this is potentially available some conventional control or circuit elements to implement, but requires a period of time, called a host driver disable time delay period to respond. 尽管它几乎立即发生以致该时间段长度为0纳秒(nsec),然而它可以容易地扩展到某些10纳秒的较长时间段,它是期望的最大时间段长度,发生在保护时间1或者转向1分组时间段期间。 Although it is almost immediately so that the occurrence period is 0 nanoseconds length (nsec), but it can be easily extended to a longer period of some 10 nanoseconds, which is the desired maximum period length, guard time occurred at 1 or 1 turn during packet period.

参见图46,当为了传输诸如反向链路封装分组或往返延时测量分组这样的分 Referring to FIG 46, when the transmission order such as Reverse Link Encapsulation Packet or the round trip delay measurement packet such points

组而启用主机驱动器时,可以看见信号电平发生变化。 When the group enables the host driver, you can see the signal level is changed. 这里,在保护时间2个或转向2个分组时间段之后,主机驱动器被启用,并且开始驱动一个电平,这里为"0", 在主机驱动器使能延时时间段期间接近并达到该值,它发生在第一分组被发送前的驱动器再使能时间段内。 Here, after the Guard Time 2 or Turn Around 2 packet periods, the host driver is enabled and begins to drive a level, here '0', close and this value is reached during the Host Driver Enable Delay period, it occurs before the first packet is transmitted and then enable the drive period.

对于客户机(这里是显示器)的驱动器和信号传输发生类似的过程。 Similar to the client process (here a display) driver and signal transmission occurs. 下表XI中示出这些时间段长度的一般准则,以及它们相应的关系。 Table XI shows the general guidelines for the length of these periods, and their respective relationships.

表XI Table XI

<table>table see original document page 56</column></row> <table> <Table> table see original document page 56 </ column> </ row> <table>

c.数据—选通定时反向链路 c Data - Strobe Timing Reverse Link

图47和48示出用于从客户机驱动器输出在反向链路上传输数据的数据和选通信号的切换特性和定时关系。 47 and FIG. 48 shows the output from the client driver and switching characteristic data strobe signal and the data transmission timing relationship for the reverse link. 下面讨论一定信号转变的典型时间。 Typical times are discussed below certain signal transitions. 图47说明了主机接收机输入端处正被传输的数据定时以及选通脉冲上升和下降沿之间的关系。 FIG. 47 illustrates the relationship between the host receiver input of the data being transmitted and the strobe timing of rising and falling edges. 即,称作选通信号上升即前沿的建立时间的tsd—Sr以及选通信号下降沿即后沿的建立时间tsu_sf。 That is, i.e. called strobe rising leading edge setup time and setup time tsd-Sr tsu_sf along the falling edge of the strobe signal, ie. 这些建立时间段的典型时间长度在8纳秒的数量级上。 The length of these periods is typically established at the time of 8 nanoseconds.

图48说明了由反向数据定时形成的切换特性和相应的客户机输出延时。 Figure 48 illustrates the switching characteristics of the reverse data timing and form corresponding client output delay. 在图48中,可以看见正被传输的数据定时以及引起延时的选通脉冲上升和下降沿之间的关系。 In Figure 48, the relationship can be seen between the strobe pulse rising and falling edges of the timing of data being transmitted and causing delay. 即,所谓的选通信号的上升即前沿和数据之间的传播延时tpd_„,以及数据和选通信号下降沿即后沿之间的传播延时tpd_sf。这些传播延时时间段的典型时间长度在8纳秒的数量级上。 That is, a so-called strobe signal rises, i.e. the propagation delay between the leading edge and the data tpd_ ", and the data strobe signal and the falling edge i.e. along the propagation delay between tpd_sf typical time for these propagation delay periods length in 8 nanoseconds.

VIII.链路控制(链路控制器操作)的实现A.状态机分组处理器 VIII. Link Control (Link Controller Operation) A. State Machine Packet implementation of the processor

MDDI链路上传输的分组非常快地被调度,通常速率在300 Mbps或更高数量级上,然而当然也可以根据需要而使用较低的速率。 MDDI packet transmission on the forward link is scheduled very quickly, typically at a rate on the order of 300 Mbps or higher, you can also be used but of course a lower rate as needed. 这种类型的总线或传输链路速度对于当前商业上可用的(经济的)通用微处理器或用于控制的其它类似物而言太大 This type of bus or transfer link speed is too great for other analogs currently commercially available (economical) general-purpose microprocessor for control purposes, or

了。 A. 因此,实现这种信号传输的实际实现是用可编程状态机来分解输入分组流,从而产生被传输或被重新定向到它们期望的适当音频一可视子系统的分组。 Thus, the actual implementation of this signal transmission is realized with a programmable state machine to decompose the input packet stream to produce packets are transferred or redirected to the appropriate audio thereof a desired visual subsystem.

通用控制器、处理器、或处理元件可以适当用来作用于或操纵诸如控制或状态分组这样的信息,它们对速度的要求较低。 General purpose controllers, processors, or processing elements may be suitably used to work on or manipulate, such as control or status packets such information, their requirements for low speed. 当接收到那些分组(控制、状态、或其它预定义的分组)时,状态机应将它们通过数据缓冲器或类似处理元件传递到通用处理器,使得能作用于分组而提供期望的结果(效应),而音频和可视分组为了该作被传输到它们适当的目的地而起作用。 Upon receiving the results of those packets (control, status, or other pre-defined packets), the state machine should pass them to the general purpose processor through a data buffer or similar processing element, so that the packet can be applied to provide the desired (effector ), while the audio and visual packets to be transmitted to their appropriate destination functions.

通过利用计算机应用中的微处理器(CPU)、或处理器、数字信号处理器(DSP)、 或者无线装置中的ASIC可用的处理效力或过度周期,可以在某些实施例中实现通 By using a computer application microprocessor (CPU), or processor, a digital signal processor (DSP), an ASIC or wireless device or potency over the available processing cycle, the realization of this embodiment may be implemented in some

用处理器操作,此与某些调制解调器或图形处理器使用计算机中CPU的处理效力来 A processor operation, this with some modems or graphics processors in the CPU effectiveness using the processing computer

执行某些操作并减少硬件复杂度和费用的方式极相同。 Very same way to perform certain operations and reduce hardware complexity and cost. 然而,这会消极地影响处理速度、时序或这种元件的总操作。 However, this would negatively affect the operation of the overall processing speed, timing, or such elements. 因此在许多应用中,最好为该通用处理选择专用电路或元件。 Therefore, in many applications, dedicated circuits or elements are the best choice for this general processing.

为了在显示器(微显示器)上观看图像数据,或者可靠地接收由主机发送的所有分组,显示器信号处理必须与前向链路信道定时同步。 In order to view the image data on a display (micro-display), or to reliably receive all packets sent by the host, the display signal processing must forward link channel timing synchronization front. 也就是说,到达显示器和 In other words, reach and display

显示器电路的信号必须在时间上同步,从而发生适当的信号处理。 Signal display circuitry must be synchronized in time so that the proper signal processing to occur. 图49的说明中给出可以实现这种同步的信号处理步骤或方法所实现的高电平状态图。 An explanation is given in FIG. 49 may be implemented in a high level state diagram of such signal processing steps or synchronization methods implemented. 图49中, 所示状态机4900的可能的前向链路同步"状态"被分类成一个异步帧(Async Frames) 状态4904、两个捕获同步(Acquiring Sync)状态4902和4906、以及三个同步中 49, the state machine may be as shown in the preamble to the 4900 link "state" is classified into a frame asynchronous (Async Frames) state 4904, two capture synchronization (Acquiring Sync) state 4902 and 4906, and three synchronization in

(In-Sync)状态4908、 4910和4912。 (In-Sync) state 4908, 4910 and 4912.

如开始步骤或状态4902所示,显示器以预先选定的"无同步"状态开始,并且在被检测的第一个子帧报头分组中搜索唯一字。 As shown starting step or state 4902, the display to a pre-selected "no sync" state starts, and the search for the unique word in the first sub-frame header is detected in the packet. 值得注意的是,该无同步状态表示其中选择类型I接口的最小通信设置或"后退"设置。 It is noted that this no sync state represents the minimum communication in which a Type I interface is provided to select or "reverse" setting. 当在搜索中找到唯一字时, 显示器保留子帧长度字段。 When you find the only word in the search, display reserved sub-frame length field. 该第一个帧上不校验用于处理的CRC比特,或者直到获得同步为止。 It does not verify the CRC bits for processing on this first frame, or until synchronization is obtained. 如果该子帧长度为零,那么同步状态处理按照该方法进行到这里标为 If the sub-frame length is zero, then the sync state processing proceeds according to the process herein as the

"异步帧"状态的状态4904,表示尚未达到同步。 State "asynchronous frame" state of 4904, said it had not synchronized. 在图49中,处理中的该步骤被标为遇到cond3,即条件3。 In Figure 49, the processing in step is labeled Cond3 encountered, i.e. the condition 3. 否则,如果帧长度大于零,则同步状态处理进行到状态4906,接口状态在那里被设为"已找到一个同步帧"。 Otherwise, if the frame length is greater than zero, then sync state processing proceeds to a state 4906 where the interface state is set as "found one sync frame." 在图49中,处理中的该步骤被标为遇到cond 5,即条件5。 In Figure 49, the processing in step 5 is labeled encountered, i.e., conditions 5 cond. 此外,如果对于大于0的帧长度状态机看到帧报头分组和良好的CRC确定,则处理进行到"已找到一个同步帧"状态。 Also, if for a frame length greater than zero state machine sees a frame header packet and good CRC determination, the processing proceeds to the "found one sync frame" state. 在图49 中,处理中的该步骤被标为遇到cond 6,即条件6。 In Figure 49, the processing in step is labeled encountered cond 6, i.e., condition 6.

在系统处在"无同步"状态之外的每种情况下,当检测到唯一字并且为子帧报头分组确定了良好CRC结果时,且子帧长度大于零,那么接口状态变为"同步中" In each case, "no sync" state than in the system, when the unique word is detected and the packet header subframe good CRC result is determined, and the sub-frame length is greater than zero, then the interface state is changed to "sync "

状态4908。 State 4908. 在图49中,处理中的该步骤被标为遇到condl,即条件l。 In Figure 49, the processing in step is labeled condL encountered, i.e. the condition l. 在另一方面,如果未纠正唯一字或子帧报头分组的CRC中的任何一个,则同步状态处理进行或返回到"无同步帧"状态的接口状态4902。 In another aspect of the interface state, if not corrected unique word or the CRC in any of the sub-frame Header Packet, then the sync state processing proceeds or returns to the "no-sync frame" state 4902. 在图49的状态图中,该部分处理被标为遇到cond 2,即条件2。 In the state diagram of Figure 49, the portion of the processing is labeled cond 2 is encountered, i.e. the condition 2.

B. 同步获得时间 B. Acquisition Time for Sync

接口可被配置成在确定已失去同步并且返回到"无同步帧"状态之前容纳某一确定数量的"同步差错"。 Interface may be configured to accommodate a certain number of "sync errors" prior to determining the synchronization has been lost and returns to the "no-sync frame" state. 在图49中, 一旦状态机已达到"同步中状态"并且未找到差错,则它正连续地遇到条件l结果,并且保持"同步中"状态。 In Figure 49, once the state machine has reached the "IN-SYNC STATE" and no errors are found, it is continuously encountering a condition results l, and kept "in sync" state. 然而,一旦检测到一个条件2结果,处理使状态变为"一个同步差错"状态4910。 However, upon detecting a condition 2 result, the process becomes a state "one sync error" state 4910. 这样, 如果处理导致检测到另一条件l结果,则状态机返回"同步中"状态,否则它遇到另一条件2结果,并且移至"两个同步差错"状态4912。 Thus, if the processing results in the detection result of another condition l, then the state machine returns "sync" state, otherwise it encounters another condition 2 result, and moves "two synchronous error" state 4912. 同样,如果发生条件l, 处理就使状态机返回"同步中"状态。 Similarly, if the condition occurs l, processing returns the state machine causes the "IN-SYNC" state. 显而易见,遇见"链路关闭分组"会导致链路终止数据传输并返回"无同步帧"状态,这是因为没有可以与之同步的内容,这被称为遇见图49的状态图中的cond 4,或条件4。 Obviously, meet "link shutdown packet" will cause the link to terminate data transfers and return to the "no-sync frame" state as there is no content to synchronize with, which is referred to meet FIG. 49 state diagram cond 4 , 4, or condition.

可以理解,可能重复唯一字的"假拷贝",这出现在子帧内的某些固定位置处。 It will be appreciated, the unique word may be repeated "false copy", which appear at some fixed location within the subframe. 在该情况下,状态机非常不可能与子帧同步,这是因为为了使MDD接口处理进行到"同步中"状态,子帧报头分组上的CRC必须有效。 In this case, the state machine is very unlikely and the sub-frame synchronization, this is because in order for the MDD interface processing "sync" state, CRC on the sub-frame Header Packet must be valid.

子帧报头分组中的子帧长度可能被设为零,以指示主机在链路被关闭前将只发送一个子帧,且MDD接口被置于或被配置成空闲休眠状态。 Sub-frame length in the sub-frame Header Packet may be set to zero to indicate that the host will transmit only one sub-frame before the link is shut down, and the MDD interface is placed in or configured into an idle hibernation state. 在该情况下,显示器必须在检测到子帧报头分组后立即接收前向链路上的分组,这是因为在链路转变为空闲状态之前仅有单个子帧被发出。 In this case, the display must be received before the detection immediately after the sub-frame header packet to the packet on the link, because only a single sub-frame is sent before the link transitions to the idle state. 在常规或典型操作中,子帧长度非零,当接口处在那些被统称为图49中的"IN—SYNC"状态时仅处理前向链路分组。 In conventional or typical operations, the sub-frame length is non-zero, when the interface is in the 49 "IN-SYNC" state is referred to as those of FIG processing forward link packets only.

显示器与前向链路信号同步所需的时间是取决于子帧大小和前向链路数据速率的变量。 Time required to display the previous forward link signal synchronization and subframe size is dependent on the link before the variable data rate. 当子帧大小较大时,将唯一字的"假拷贝"检测为前向链路中部分随机或更随机数据的似然性也较大。 When the sub-frame size is large, the unique word "false copy" is detected as the forward link data part of the random, or more random likelihood is larger. 与此同时,当前向链路数据速率较慢时,从假检测恢复的能力较低,完成它所需的时间较长。 At the same time, the current time to the link data rate is slower, less ability to recover from a false detection, it requires longer time to complete.

C. 初始化如前所述,在"启动"时,主机配置前向链路工作在1 Mbps的最小所需或所期望的数据速率之下,并且配置适用于给定应用的子帧长度和媒体帧速率。 C. Initialization As described above, in the "start", before the Host Configuration link operating below the minimum required or desired to 1 Mbps data rate, the sub-frame length and configuration suitable for a given application and media Frame rate. 也就是说,前向和反向链路都用类型I接口开始。 That is, both the forward and reverse links begin with type I interface. 当主机为客户机显示器(或其它装置) 确定性能或期望配置时,这些参数一般仅临时使用。 When the host to the client display (or other device) to determine the performance or desired configuration, these parameters are generally only temporary use. 为了请求显示器用显示性能分组应答,主机在前向链路上发送或传输子帧报头分组,其后跟着反向链路封装分组, 该分组请求标志的位"O"被设为值一(1)。 In order to request that the display responds with the display performance of a packet, the host sends a forward link or transmission sub-frame header packet, subsequently followed Reverse Link Encapsulation Packet, the packet request bit flag of "O" is set to a value of one (1 ). 一旦显示器在(用)前向链路上获得同歩, Once the display is obtained on the forward link at the same ho (a) before,

它便在反向链路或信道上发出显示性能分组以及显示请求和状态分组。 It will be issued in the display performance of a packet or a reverse link channel and displaying Request and Status Packet.

为了确定怎样重新配置最佳或期望性能级别的链路,主机检查显示性能分组的内容。 In order to best determine how to reconfigure the link or the desired performance level, the host checks the performance of the display content packet. 主机检查协议版本和最小协议版本字段来确认主机和显示器使用彼此兼容的协议版本。 The host examines the Protocol Version and Minimum Protocol Version fields to confirm that the host and display use versions of the protocol compatible with each other. 协议版本保持显示性能分组的前两个参数,因此,即使在协议的其它元件可能不兼容或者完全不能被认为兼容时,也能确定兼容性。 Protocol version two holding parameters before the display performance of the packet, even when other elements of the protocol might not be compatible or completely not be considered compatible and compatibility can be determined.

D. CRC处理 D. CRC processing

对于所有分组类型而言,分组处理器状态机确保CRC检验器被适当控制。 For all packet types, the packet processor state machine ensures that the CRC checker is controlled appropriately. 它也在CRC比较导致所检测到的一个或多个误差时使CRC误差计数器增加。 It is also that the CRC comparison results of the CRC error counter is incremented when a detected error or more. 而且它在每个被处理的子帧开始时重置CRC计数器。 And it resets the CRC counter at the time of each sub-frame begins to be processed. <table>table see original document page 59</column></row> <table><table>table see original document page 60</column></row> <table> <Table> table see original document page 59 </ column> </ row> <table> <table> table see original document page 60 </ column> </ row> <table>

执行类型切换(PTH) Perform Type Handoff (PTH)

可能或直接地或通过将这些分组传送至通用处理器而作用于它们之上,同样命令硬件经历模式变化。 Or may be directly or through these packet to act on the general purpose processor on them, the same hardware undergo a mode change command.

X.降低反向链路数据速率 X. Reducing the Reverse Link Data Rate

发明人已观察到,为了实现非常期望的最大或更优化的(缩放)反向链路数据速率,可以以某种方式来调节或配置主机链路控制器所用的某些参数。 The inventors have observed that, in order to achieve highly desired maximum or more optimized (scale) reverse link data rate, may be adjusted in some way or some configuration parameters used by the host link controller. 例如,在用 For example, in the use

于传输反向链路封装分组的反向链路分组字段的时间内,MDDI—Stb信号对反复转换,以创建前向链路数据速率一半的周期性数据时钟。 Reverse link packets in the time field of the Reverse Link Encapsulation Packet transmission, MDDI-Stb signal is repeatedly converted to create the front half of a clock to the periodic data link data rate. 这个的发生是由于主机链路控制器产生对应于MDDI—DataO的MDDI—Stb信号,就好像它发出全零一样。 This occurs because the host link controller generates the MDDI-DataO corresponding to the MDDI-Stb signal as if it were emitted as all zeros. MDDI一Stb 信号从主机被传送到显示器,其中它用来产生用于从显示器传输反向链路数据的时钟信号,反向链路数据用它被发送回主机。 A MDDI Stb signal is transferred from the host to a display where it is used to generate a clock signal for the reverse link transmission from the display data, reverse link data is sent back to it by the host. 图50中示出使用MDDI的系统中前向和反向通道上信号传输和处理所遇见的典型延时量。 FIG 50 shows a typical amount of delay and signal processing and transmission on a reverse channel and found the system before using the MDDI. 在图50,所示一系列延时值1. 5 纳秒、8. 0纳秒、2. 5纳秒、2.0纳秒、1.0纳秒、1. 5纳秒、8. 0纳秒和2. 5纳秒分别接近Stb+A产生、电缆传输至显示器、显示器接收机、时钟产生、信号同步、 Data(H/-产生、电缆传输至主机、以及主机接收机级的处理部分。 In FIG. 50, a series of delay values ​​1.5 nsec shown, 8.0 ns, 2.5 ns, 2.0 ns, 1.0 ns, 1.5 ns, 8.0 ns and 2 5 nsec were generated close Stb + a, cable transmission to the display, display receiver, clock generation, signal synchronization, Data (H / - generation, cable transmission to the host, and host receiver stage processing section.

根据所遇到的前向链路数据速率和信号处理延时,要完成该"往返"效应或一组事件可能比MDDI一Stb信号需要多于一个周期的时间,造成消耗不希望的时间或周期量。 The front encountered link data rate and signal processing delays, to complete the "round trip" effect or set of events may be more than one cycle than MDDI Stb signal requires a time, resulting in undesirable consumption of time or period the amount. 为了防止该问题,反向速率除数使反向链路上的一比特时间能跨越MDDI—Stb信号的多个周期。 To prevent this problem, the Reverse Rate Divisor makes a bit time on the reverse link can span multiple cycles of the MDDI-Stb signal. 这意味着反向链路数据速率低于前向链路速率。 This means that the reverse link data rate is lower than the forward link rate.

应该注意,通过接口的实际信号延时长度可能根据所使用的各特定主机一客户机系统或硬件而改变。 It should be noted, may vary according to each particular host system used by a client or hardware signal delay through the actual length of the interface. 各系统一般通过用往返延时测量分组来测量系统中的实际延时而表现得更加好,因此反向速率除数能被设为最佳值。 Each system is typically measured by the packet round-trip delay is measured by the actual delay in a system and performance was even better, so the Reverse Rate Divisor can be set to an optimum value.

往返延时通过使主机将往返延时测量分组发送至显示器来测量。 By making the round trip delay measurement packet to the host the round-trip delay is measured sent to the display. 显示器通过在该分组内预先选择的测量窗内或期间内将一个1序列发送回主机而对该分组应答,该测量窗称为测量时间段字段。 Through the display period packet in the pre-selected measurement window 1 or a sequence back to the host and the response packet, referred to as the measurement period measurement window field. 该测量的详细时序已在前说明。 The detailed timing of this measurement is first described. 往返延时用于确定能安全采样反向链路数据所处的速率。 Means for determining the round trip delay safe sampling rate at which the reverse link data.

往返延时测量包括确定、检测、或计数前向链路数据时钟间隔的数目,所述时钟间隔发生在测量时间段字段的开始与在主机处从显示器接收到Oxff、 Oxff、 0x00应答序列的时间段开始之间。 Round trip delay measurement consists of determining, detecting the number of front or forward link data clock count interval, the clock interval occurs at a measurement time period beginning with the field received from the display to Oxff, Oxff at the host, the response time series 0x00 between segments began. 注意到来自显示器的应答可能在测量计数将要增加之前的一小部分前向链路时钟周期之前而被接收。 Noting the response from the display could be received before the link clock period before the measurement of a small portion of the previous count to be increased. 如果该未经修改的值用于计算反向速率除数,则它会引起反向链路上由不可靠数据采样所引起的比特误差。 If this unmodified value is used to calculate the Reverse Rate Divisor, it will cause a bit error from the sampled data is not reliable due to the reverse link. Map

51中说明了该情况的一个示例,其中以图形形式说明了表示主机处的MDDI—Data、 主机处的MDD[Stb、主机内的前向链路数据时钟、以及延时计数等信号。 51 illustrates an example of this case, which illustrates in graphic form represented at the host, MDDI-Data, MDD at the host [Stb,, within the host before the link to the data clock signal and counting the delay. 在图51 中,应答序列在延时计数要从6增至7之前的一小部分前向链路时钟周期之前而被接收。 In Figure 51, the response sequence was received before the delay count and forward link clock period before a fraction from 6 to seven. 如果假定延时为6,则主机将总是在比特转变后或可能在比特转变中间对反向数据采样。 If the delay is assumed to 6, then the host will always be a bit transition or possibly after an intermediate bit transition sample the reverse data. 这会导致主机处的错误采样。 This can lead to erroneous sampling at the host. 为此,经测量的延时应该在用它来计算反向速率除数前被增一。 For this reason, the measured delay should be calculated by using a reverse rate divisor before it.

反向速率除数是主机在对反向链路数据采样前应该等待的MDDI_Stb周期数。 Reverse Rate Divisor is the number of MDDI_Stb cycles the host before sampling the reverse link data should wait. 由于MDDI一Stb以前向链路速率的一半的速率循环,因此经纠正的往返延时测量需要被除以2,然后向上取整至下一个整数。 Since MDDI Stb previous cycle to a half rate link rate, so by measuring the round-trip delay needs to be corrected is divided by 2 and then rounded up to the next integer. 该关系用公式表示如下:<formula>formula see original document page 62</formula>2 The relationship is represented by the following formula: <formula> formula see original document page 62 </ formula> 2

对于给定示例,这变成:<formula>formula see original document page 62</formula> For the example given, this becomes: <formula> formula see original document page 62 </ formula>

如果该例中所用的往返延时测量与不是6而是7,则反向速率除数也会等于4。 If used in this embodiment round trip delay measurement, but not 6 and 7, also the reverse rate divisor equal to four. 反向链路数据由主机在反向链路时钟的上升沿采样。 The reverse link data is sampled by the host on the rising edge of the Reverse Link Clock. 这是主机和客户机(显示器)中用于产生反向链路时钟的计数器或者类似已知的电路或装置。 This is where the host and client (display) to generate the Reverse Link Clock counter or similar known circuit or device. 计数器被初始化,使得反向链路时钟的第一个上升沿发生在反向链路封装分组的反向链路分组字段内第一比特开始处。 The counters are initialized so that the Reverse Link Clock occurs at the beginning of the first rising edge of the first bit of the Reverse Link Packets field of the Reverse Link Encapsulation Packet. 这在图52中为了下面给出的示例而说明。 For this example given below and illustrated in FIG. 52. MDDI—Stb信号的各上升沿处的计数器增量,以及它们绕回前发生的计数数量由反向链路封装分组内的反向速率除数参数设置。 Counter is incremented at each rising edge of the MDDI-Stb signal, and the count number thereof by wraparound occurred before in the reverse rate divisor parameters in the Reverse Link Encapsulation Packet is provided. 由于MDDI—Stb信号在前向链路速率的一半处转换,因此反向链路速率是由反向速率除数所除的前向链路速率的一半。 Since MDDI-Stb signal into the forward link rate one half, so the reverse link rate is one half of the former divided by the Reverse Rate Divisor is the link rate. 例如,如果前向链路速率为200 Mbps且反向速率除数为4,则反向链路数据速率表示为: For example, if the forward link rate is 200 Mbps and the Reverse Rate Divisor is 4 then the reverse link data rate is expressed as:

<formula>formula see original document page 62</formula>图52中示出反向链路封装分组中MDDI一DataO和MDDI—Stb信号线的定时示例, 其中说明所用的分组参数具有下列值: <Formula> formula see original document page 62 </ formula> FIG. 52 shows a timing example in a Reverse Link Encapsulation a MDDI DataO and MDDI-Stb signal line grouping, wherein the grouping parameter description used have the following values:

分组长度=1024 (0x0400) 转向i长度=1 Packet Length = 1024 (0x0400) steering length i = 1

分组类型=65(0"1) 转向2长度=1反向链路标志=0 反向速率除数=2 参数CRC = 0xdb43 全零为0x00 Packet Type = 65 (0 '1) Turn Around 2 Length = 1 Reverse Link Flags = 0 Reverse Rate Divisor = 2 Parameter CRC = 0xdb43 All Zero is 0x00

选通对齐为0x00, 0x00, 0x60 分组长度和参数CRC字段间的分组数据为: Strobe aligned 0x00, 0x00, 0x60 Packet data between the Packet Length and Parameter CRC fields is:

0x00, 0x04, 0x41, 0x00, 0x02, 0x01, 0x01, 0x43, 0xdb, 0x00, 0x00, 0x60, 0x00… 0x00, 0x04, 0x41, 0x00, 0x02, 0x01, 0x01, 0x43, 0xdb, 0x00, 0x00, 0x60, 0x00 ...

从显示器返回的第一反向链路分组为显示器请求和状态分组,其分组长度为7,分组类型为70。 First reverse link packet returned from the display is the Display Request and Status Packet which the packet length is 7, 70 for the packet type. 该分组以字节值0x07, 0x00, 0x46…开始,依此类推。 The packets byte value 0x07, 0x00, 0x46 ... start, and so on. 然而,图52中仅可看见第一个字节(0x07)。 However, Figure 52 only see the first byte (0x07). 为了说明实际反向链路延时,该第一反向链路分组在图中时间上被移位将近一个反向链路时钟周期。 In order to explain the actual reverse link delay, the first reverse link packets in the figure is shifted nearly one reverse link clock cycle time. 虚线迹线示出具有零主机到显示器往返延时的理想波形。 The broken line trace shown over the waveform with zero host to display round-trip delay.

选通对齐字节在参数CRC字段的MS字节后被传送,然后是全零字段。 Alignment byte strobe transmitted after MS byte of the Parameter CRC field, then the all zero field. 来自主 From the main

机的选通从1切换为零,然后当来自主机的数据改变形成较宽脉冲的电平时返回至1。 Gating machine from switching to zero, and then returns to normal when the data from the host 1 changes the electric forming wider pulses. 当数据变为零时,选通以较高速率切换,仅有数据线上数据内的变化会引起对齐字段末尾处的变化。 As the data goes to zero, the strobe switches at the higher rate, only the change in data on the data line causes a change in the field at the end of alignment. 选通为了由扩展时间段的数据信号的固定0或1电平引起的 For gating fixed 0 or 1 levels of the data signal spreading caused by the time period

图中剩余部分以较高速率切换,转变落在脉冲图案(边沿)上。 FIG remaining portion at a higher rate switching transition falling on the pulse pattern (edge).

当时钟启动来容纳反向链路分组时,主机的反向链路时钟在转向1时间段之前为零。 When the clock to start receiving a reverse link packet, the host is zero reverse link clock period before turning 1. 图下部的箭头表示何时采样数据,这将从以下揭示中变得显而易见。 FIG arrow indicates when the lower portion of the sample data, which will become apparent from the following disclosure. 所示正被传输的分组字段的第一个字节(这里是11000000)在转向1之后开始,线电平自主机驱动器被禁用后稳定。 The first byte of the packet field being transferred as shown in (here 11000000) is started after turning 1, line level stability from the host driver being disabled. 第一比特通路中的延时,以及位3中的延时,可以在数据(Data)信号的虚线中所见。 A first bit path delay, delay and bit 3 may be (Data) seen in broken lines in the data signal.

在图53中,可以观察到基于前向链路数据速率的反向速率除数的典型值。 In Figure 53, it can be observed on forward link data rate of a reverse rate divisor of typical values. 实际反向速率除数作为往返链路测量的结果而被确定,以保证适当的反向链路操作。 The actual Reverse Rate Divisor is determined as a result of round-trip link measurement to guarantee proper reverse link operation. 第一区域5302对应于安全操作区域,第二区域5304对应于边缘特性的区域,而第三区域5306表示不能适当操作的设置。 A first region 5302 corresponds to an area of ​​safe operation, a second region 5304 corresponds to a region of the edge characteristics, while a third region 5306 indicates settings are not operating properly.

当或在前向或在反向链路上用任一接口类型设置操作时,往返延时测量和反向速率除数设置相同,这是由于它们用实际时钟周期的单位来表示并操作,而非用被发射或被接收到达比特数。 When the forward or reverse link, or on an interface with either type of set operation, round-trip delay measurement and Reverse Rate Divisor can be set the same, due to their units to represent actual clock period and operate, instead achievable bit number received by or transmitted.

XI.转向和保护时间 XI. Turn-Around and Guard Times

如前所述,反向链路封装分组内的转向1字段以及往返延时测量分组内的保 As described above, the Turn-Around 1 field in the Reverse Link Encapsulation Packet and security within a packet round-trip delay measurement

护时间1指定了允许主机接口驱动器在启用显示器接口驱动器之前被禁用的长度值。 1 specifies the guard time to allow the host interface drivers to be disabled before the display interface drivers enable the length value. 转向2和保护时间2字段提供了允许显示器驱动器在启用主机驱动器前被禁用的时间值。 Turn Around 2 and Guard Time 2 fields provide time values ​​allow the display drivers to be disabled before the host drivers are enabled. 保护时间1和保护时间2字段一般用长度的预设或预先选择的值来填充, 它不会被调节。 Guard Time 1 and Guard Time 2 fields are generally used preset or pre-selected values ​​of the length of the filling, it will not be adjusted. 根据所使用的接口硬件,这些值可以用经验数据研究得出并且为了改进操作而在某些情况下被调节。 The interface hardware being used, these values ​​can be derived using empirical data and studies for improving the operation to be adjusted in some cases.

若干因素对转向1的长度确定起作用,并且这些是前向链路数据速率以及主机内MDDI—Data驱动器的最大禁用时间。 Several factors determine the length of a steering function, and the maximum disable time of the forward link data rate and the host drives MDDI-Data. 最大主机驱动器禁用时间在表XI中规定, 它示出驱动器需要约10纳秒最大时间来禁用以及约2纳秒来启用。 The maximum host driver disable time is specified in Table XI, which shows the driver requires maximum time of about 10 nsec to disable and about 2 nsec enabled. 主机驱动器要被禁用的前向链路时钟的最小数量按照下列关系来表示- Before the host driver to be disabled is expressed according to the following relationship between the minimum number of link clock -

<formula>formula see original document page 64</formula> <Formula> formula see original document page 64 </ formula>

转向1所允许的值范围按照下列关系来表示: Steering a range of allowed values ​​expressed according to the following relationship:

<formula>formula see original document page 64</formula>其中接口类型因子(Interface Type Factor)对于类型I为1,对于类型II为2, 对于类型III为4,对于类型IV为8。 <Formula> formula see original document page 64 </ formula> where the Interface Type Factor (Interface Type Factor) is 1 for Type I, Type II for the 2, 4 for Type III, Type IV for 8.

联合上面两个公式,可以看见,接口类型因子项被消去,转向l被定义为:<formula>formula see original document page 64</formula> Joint above two formulas can be seen, interface type factor item is erased, the steering is defined as l: <formula> formula see original document page 64 </ formula>

例如,1500 Mbps的类型III前向链路会使用下面的转向1延时: For example, before the 1500 Mbps Type III forward link would use a Turn Around 1 delay of the following:

<formula>formula see original document page 64</formula> <Formula> formula see original document page 64 </ formula>

随着往返延时的增加,从主机被禁用点到显示器被启用时的时序边缘得到改进。 With the increase in the round trip delay from the host is disabled to the timing point of the display is enabled when the edge is improved.

转向2 —般用来确定时间长度的因子为前向链路数据速率、显示器内MDDI一Data驱动器的最大禁用时间、以及通信链路的往返延时。 Turn Around 2 - as used to determine the forward link data rate, the MDDI Data drivers in a display time length before the maximum disable time factor, and the round trip delay of the communication link. 禁用显示器驱动器所需时间的计算一般与上面为主机驱动器所讨论的时间相同,并且按照下列关系定义: Display driver disable time required for the calculation time is the same as above the general host driver discussed above, and is defined according to the following relationship:

<formula>formula see original document page 65</formula>且转向2所允许的值范围表示为: <Formula> formula see original document page 65 </ formula> 2 and the steering range of allowed values ​​expressed as:

<formula>formula see original document page 65</formula>例如,具有10个前向链路时钟的1500 Mbps类型in前向链路一般使用以下数量级的转向2延时: <Formula> formula see original document page 65 </ formula> e.g., having a front 10 clocks before the 1500 Mbps link type typically used in the following order of magnitude of the steering link to the second delay:

<formula>formula see original document page 65</formula>XII.物理层互连描述 <Formula> formula see original document page 65 </ formula> XII. The physical layer interconnection described

按照本发明实现接口的所用的物理连接可以用商业可用的零件来实现,譬如由Hirose Electric有限公司在主机端制造的零件号3260-8S2(01),以及由Hirose Electric有限公司在显示器装置端制造的零件号3240-8P-C。 Commercially available components may be used to implement the present invention is implemented in accordance with the physical connection of the interface used, such as part number manufactured by Hirose Electric Co., Ltd. on the host side (01), and manufactured by Hirose Electric Co., a display apparatus side 3260-8S2 part number 3240-8P-C. 表XIII列出用类型I接口的这种连接器的示例性类型I接口引线分配即"管脚引出线"。 Table XIII lists such connectors interface with Type I Type I Exemplary Interface pin assignment or "pinout."

表XIII Table XIII

<table>table see original document page 65</column></row> <table> <Table> table see original document page 65 </ column> </ row> <table>

为了足够小而与诸如PDA和无线电话、或者便携式游戏装置这样的移动通信和计算装置一起使用而选定或指明互连元件或装置,与相关装置大小相比并不突出或难看。 In order to be small enough to be selected or specified interconnecting element or device for use with mobile communication and computing devices such as PDA and wireless telephones, or portable game devices, such as unsightly or does not protrude compared with the related apparatus size. 任何连接器和电路应该能持续用于典型的用户环境中并且允许尤其对于电缆的小尺寸和相对低的费用。 Any connectors and circuitry should be able to continue a typical user environment and allow for small size, especially the cable and relatively low cost. 传输元件应该供给作为差分NRZ数据的数据和选通信 Transmission element to be supplied as a differential NRZ data and a data strobe

号,它们对于类型I和类型n具有高达约450Mbps的传输速率,对于8比特并行类型IV版本具有高达3. 6 Gbps的传输速率。 Number, they have a transfer rate up to about 450Mbps for Type I and Type n, for an 8-bit parallel Type IV version with up to 3. 6 Gbps transmission rate.

XIII.操作 XIII. Operation

图54a和54b中示出使用本发明实施例的接口操作期间处理数据和分组所采用的一般步骤概述,以及处理图55中分组的接口装置的综述。 FIGS. 54a and 54b shows the general steps using the embodiment of the invention during operation of an interface and processing data packets used in summary, as well review the interface apparatus processing the packets in FIG. 55. 在这些图中,处理在步骤5402处开始,确定客户机和主机是否用通信通道所连接,这里通信通道是电缆。 , The process starts at step 5402 in FIG, determining whether the client and host are connected using a communication path, here a cable communication channel. 这会通过由主机使用周期性轮询、在主机输入端(譬如在USB接口处所见) 检测连接器或电缆或信号的存在的软件或硬件、及其它已知技术而发生。 This may, occur (such as seen in the USB interface) detecting the presence of connectors or cables or hardware or software signals, and other known techniques by using periodic polling by the host at the host input. 如果没有客户机与主机相连,则它会根据应用而简单地进入某预定长度的等待状态、进入休眠模式、或者被阻止而等待将来使用,后者要求用户采取行动来重新激活主机。 If there is no client connected to the host, it applies simply enter a wait state of some predetermined length, enter sleep mode, or are blocked waiting for future use according to, which requires a user to take action to reactivate the host. 例如,当主机驻留在计算机型装置上时,用户可能必须点击屏幕图标或请求激活主机处理去寻找客户机的程序。 For example, when a host resides on a computer type device, the user may have to tap the screen icon or request activation of host processing program to find clients. 同样,USB型连接的简单插入,譬如类型U接口所用, 会激活主机处理。 Similarly, USB-connected simply inserted, for example, the type used in the U-interface will activate host processing.

一旦客户机与主机相连,反之亦然,或被检测为存在,则或主机或客户机在步骤5404和5406中发出适当的分组请求服务。 Once a client connected to the host, or vice versa, or detected as being present, or the host or client sends appropriate packets requesting service in steps 5404 and 5406. 客户机在步骤5404中会或发出显示服务请求或发出状态分组。 The client in step 5404 or may issue a service request or issue display Status Packet. 注意到,如上所述,链路可能先前己关闭或者处在休眠模式,因此这可能不是允许的通信链路的完全初始化。 It noted that, as described above, the link may have previously been turned off or in a sleep mode so this may not be allowed to fully initialize the communication link. 一旦通信链路得到同步且主机试图与客户机通信,则客户机还需要将显示性能分组提供给主机,如步骤5408 中所示。 Once the communication link is synchronized and the host is trying to get in communication with a client, the client also needs to display performance packet to the host, as shown in step 5408. 主机现在可以开始确定客户机能提供的支持类型,包括传输速率。 The host can now begin to determine the type of client can provide support, including transfer rates.

一般而言,主机和客户机还在步骤5410中协商要被使用的服务模式类型(速率/速度),例如类型I、类型U、类型II等等。 Generally, the host and client also negotiate the step 5410 to the service mode is used the type (rate / speed), such as type I, Type U, Type II and the like. 一旦建立了服务类型,主机就开始传输信息。 Once a service type, the host begins to transmit information. 此外,主机可以用往返延时测量分组来与其它信号处理平行地优化通信链路的定时,如步骤5411中所示。 Furthermore, the host may be used to optimize the round trip delay measurement packet communications link in parallel with other signal processing timing as shown in step 5411.

如前所述,所有传输都以子帧报头分组开始,在步骤5412中被传输,其后是数据类型,这里是视频和音频流分组、以及填充符分组,在步骤5414中所示被传输。 As described above, all transmissions in the subframe header packet is transmitted in step 5412, followed by the type of data, here video and audio stream packets, and filler packets, shown being transferred in step 5414. 音频和视频流数据将预先已被准备好并被映射入分组,而填充符分组根据需要被插入来填满媒体帧所需的比特数。 Audio and video stream data has been ready in advance and mapped into packets, and filler packets to fill the number of bits required for a frame according to the media needs to be inserted. 主机可以将诸如前向音频信道使能分组这样的分组发送至活动声音装置,或另外,主机可以用上述其它分组类型传输指令或信息, 这里示出传输色图、比特块传输或步骤5416中的其它分组。 The host may be such as the front so that the audio channels can be grouped such packet sent to the active acoustic device, or in addition, the host can use the above-described other packet type transmission instruction or information showing the transmission color chart Here, the bit block transfer or steps 5416 other groupings. 此外,主机和客户机可以使用适当分组交换与键盘或指示装置有关的数据。 In addition, the host and client can exchange data using the appropriate packet for a keyboard or pointing device.

在操作期间,若干不同事件之一会发生,这会导致主机或客户机期望不同的数据速率或接口模式类型。 During the operation, one of several different events can occur, which can lead to a host or client expect a different data rate or type of interface mode. 例如,计算机或其它传送数据的装置会遇到处理数据中的下载条件,它造成分组的准备或表示变慢。 For example, a computer or other device may encounter data transfer processing of the data is downloaded, it causes a packet to prepare slow or expressed. 接收数据的显示器会从专用AC电、源变为更有限的电池电源,并且或者不能同样快地传输数据、容易地处理指令,或者不能在更有限的电源设置下试用同等程度的分辨率或色深。 Receiving display data from a dedicated AC power would be a source into a more limited battery power source, and either not transmit data as quickly, easily processing instructions, or trial use the same degree of resolution or color under the more limited power settings deep. 或者,限制条件可以被消除或者消失,允许任一装置以高速率传输数据。 Alternatively, the restrictions may be eliminated or disappear allowing either device to transfer data at high rates. 由于这是越来越期望的,因此可以作出请求以改变到较高的传输速率模式。 Since this is more desirable, a request can be made to change to a higher transfer rate mode.

如果这些或其它类型的已知条件发生或改变,则或主机或客户机会检测到它 If these or other types of known conditions occur or change, or the host or client may detect it

们并且试图重新协商接口模式。 And they tried to renegotiate the interface mode. 这在步骤5420中示出,其中主机将接口类型切换请求分组(Interface Type Handoff Request Packets)发送至客户机,请求向另一模式的切换,客户机发出接口类型确认分组(Interface Type Acknowledge Packets),确认被探寻的变化,然后主机发出执行类型切换分组(Perform Type Handoff Packets)来作出向指定模式的变化。 This is shown in step 5420, where the host Interface Type Handoff Request Packet (Interface Type Handoff Request Packets) to the client, a request to switch to another mode, the client sends Interface Type Acknowledge Packets (Interface Type Acknowledge Packets), change confirmation is sought, then the host sends perform type Handoff packet (perform type Handoff packets) to make the change to the specified mode.

虽然不需要特定的处理次序,客户机和主机也能交换与指向或从指示装置、 键盘或主要与客户机相关的其它用户类型的输入装置接收到的数据有关的分组,然而这些元件也可以存在于主机端。 Although no specific order of processing, the client and host can also exchange packets relating to data point or received from a pointing device, a keyboard or other user major types of input devices associated with the client to which, however, these elements may also be present the host side. 这些分组一般用通用过程或类型元件且非状态机来处理(5502)。 These packets are typically processed (5502) with the general process or type element and not the state machine. 此外,上面讨论的某些指令也可由通用处理器来处理(5504, 5508)。 Moreover, some instructions discussed above are also processed by a general purpose processor (5504, 5508).

在主机和客户机之间交换了数据和指令之后,在某些点上作出决定是否要传输附加数据,或者主机或客户机是否要停止对传输服务。 After between the host and client exchange data and instructions, make a decision at some point whether or not to transmit additional data, or the host or client is going to stop transmission services. 这在步骤5422中示出。 This is shown in step 5422.. 如果链路要进入或休眠状态或完全被关闭,则主机将链路关闭(Link Shutdown)分组发送至客户机,并且两端都终止数据传输。 If the link is to enter a sleep state or is closed or completely, the host sends a Link Shutdown (Link Shutdown) packet to the client, and terminates the data transmission ends.

在上述操作处理中被传输的分组将用上面关于主机和客户机控制器讨论的驱动器和接收机来传输。 Transmitted in the above operations processing the packet with the driver and receiver above with respect to the host and client controllers discussed transmitted. 这些线路驱动器和其它逻辑元件与上述状态机和通用处理器相连,如图55的综述所述。 These line drivers and other logic element and the state machine and general processors discussed, a review of the 55 in FIG. 在图55中,状态机5502和通用处理器5504还与其它未示出的元件相连,譬如专用USB接口、存储器元件、或驻留在它们所交互动力的链路控制器外的其它组件,包括、但不限于:数据源、以及可视显示器装置的视频控制芯片。 In FIG 55, a state machine 5502 and general processors 5504 is also connected to other elements not shown, such as a dedicated USB interface, memory elements, or other components residing outside of the link they interacted power controller comprising , but not limited to: a data source, and video control chips visual display device.

处理器和状态机为上述关于保护事件等讨论的驱动器的启用和禁用提供控制,以确保通信链路的有效建立和终止,以及分组传输。 Processors, and state machine described above with respect to enable and disable the drive discussed protection events provide controls to assure efficient establishment and termination of communication link, and transfer of packets.

XIV.附录除了上面为各种用于实现本发明实施例的结构和协议的分组而讨论的格式、 结构和内容之外,这里还给出某些分组类型的更详细的字段内容。 XIV. In addition to the above format Appendix various packets used to implement the architecture and protocol of the embodiment of the present invention and are discussed embodiment, the structure and content, there is also given a more detailed field contents of certain packet types. 这里给出这些以进一步阐明它们分别的用途或操作,从而使本领域的技术人员能更容易地理解本发明并为各种应用而利用它。 These are given here to further clarify their respective use or operations to enable those skilled in the art can more readily understand the invention and utilize it for various applications. 这里仅进一步讨论尚未讨论过的一些字段。 Just to further discuss some of the fields have not yet discussed.

A.对于视频流分组 A. For Video Stream Packets

显示属性字段(Display attributes field) (1字节)具有一系列位值,解释如下。 Display attributes field (Display attributes field) (1 byte) has a series of bit values, as explained below. 位1和0选择怎样路由显示像素数据。 Bits 1 and 0 select how the display pixel data is routed. 对于位值"00"或"11",数据显示给双眼,对于位值"10",数据仅被路由至左眼,而对于位值"01",数据仅被路由至右眼。 For bit values ​​"00" or "11", data is displayed to both eyes, for bit values ​​'10', data is routed only to the left eye, and for bit values ​​'01', data is routed only to the right eye. 位2表示是否以交织格式给出像素数据(Pixel Data),行号(像素Y坐标) Bit 2 indicates whether the given pixel data (Pixel Data) to interlaced format, the row number (pixel Y coordinate)

在从一行前进至下一行时增1。 In advancing from one row to the next row by one. 当该位值为"1"时,像素数据为交织格式,行号在从一行前进至下一行时增2。 When this bit is "1", the pixel data are interleaved format, the line number in advancing from one row to the next row by 2. 位3表示像素数据处在交替像素格式。 Bit 3 indicates pixel data in alternate pixel format. 这类似于由位2使能的标准交织模式,但交织是垂直的而非平行的。 This is similar to a 2 bit interleaving pattern can enable a standard, but the interleaving is not parallel to the vertical. 当位3为0时,像素数据处在标准渐进格式,列号(像素X坐标)在接收到每个连续像素时增1。 When Bit 3 is 0, the pixel data is in the standard progressive format, the column number (pixel X coordinate) is incremented by one upon each successive pixel is received. 当位3为1 时,像素数据处在交替像素格式,列号在接收到每个像素时增2。 When Bit 3 is 1 the Pixel Data is in alternate pixel format, the column number is incremented upon receipt of each pixel 2. 位7至4留待将来使用并且一般被设为零。 Bits 7 through 4 are reserved for future use and is generally set to zero.

2字节的X起始和Y起始字段(X Start and Y Start fields)指定了像素数据字段内第一个像素点的X和Y的绝对坐标(X Start, Y Start) 。 The 2-byte X Start and Y Start fields (X Start and Y Start fields) specifies the absolute X and Y coordinates of a first pixel in the Pixel Data field (X Start, Y Start). 2字节的X左边缘和Y上边缘字段(X Left Edge and Y Top Edge fields)指定了由像素数据字段填充的屏幕窗的左边缘坐标X和上边缘坐标Y,而X右边缘和Y下边缘字段(X Right Edge and Y Bottom Edge f ields)指定了更新窗的右边缘坐标X和下边缘坐标Y。 2-byte X Left Edge and Y Top Edge fields (X Left Edge and Y Top Edge fields) specified by the Pixel Data field filled with the left edge of the screen window and the upper edge of the coordinates X coordinate Y, X and Y and the lower right edge edge field (X Right edge and Y Bottom edge f ields) specifies the update of the right edge of the window and a lower edge coordinates X coordinate Y.

像素计数字段(Pixel Count field) (2字节)指定了下面像素数据字段内的像素数目。 The Pixel Count field (Pixel Count field) (2 bytes) specifies the number of pixels in the pixel data fields below.

参数CRC字段(Parameter CRC field) (2字节)包含从分组长度到像素计数的所有字节的CRC。 The Parameter CRC field (Parameter CRC field) (2 bytes) contains a CRC of all bytes from the Packet Length to the Pixel Count. 如果该CRC校验失败,则丢弃整个分组。 If the CRC check fails, then the entire packet is discarded.

像素数据字段(Pixel Data field)包含要被显示的原始视频信息,它以视频数据格式描述符所描述的方式被格式化。 Pixel Data field (Pixel Data field) contains the raw video information to be displayed, in which the video data format descriptor is formatted manner. 如其它地方所讨论的,数据一次被发射一f 0 As discussed elsewhere, the data is transmitted once a f 0

像素数据CRC字段(Pixel Data CRC field) (2字节)仅仅包含像素数据的16 位CRC。 Pixel Data CRC field (Pixel Data CRC field) (2 bytes) contains only the pixel data of the 16-bit CRC. 如果该值的CRC验证失败,则仍能使用像素数据,但是CRC差错计数增一。 If a CRC verification of this value fails then the pixel data can still be used, but the CRC error count is incremented by one.

B. 对于视频流分组 B. For Video Stream Packets

音频信道ID字段(Audio Channel ID field) (1字节)标识客户机装置将音频数据发送所至的特定音频信道。 Audio Channel ID field (Audio Channel ID field) (1 byte) identifies the client device transmits the audio data to which the particular audio channel. 物理音频信道在该字段内被指定或由该字段映射, 其值O、 1、 2、 3、 4、 5、 6或7分别表示左前、右前、左后、右后、前中、亚低音扬声器、左环绕、以及右环绕信道。 After physical audio channels are specified in the field or by that field mapping, the value O, 1, 2, 3, 4, 5, 6, or 7 indicate the left front, right front, left rear, right, front, subwoofer left surround, and right surround channel. 音频信道ID 254表示数字音频采样的单个^1 被发送至左前和右前两条信道。 Single audio channel ID 254 digital audio samples is sent to ^ 1 two left and right front channels. 这简化了为话音通信使用立体声耳机的应用、PDA 中的生产力提高应用、以及其中简单用户接口产生警示音的任何应用。 This simplifies the application of a stereo headset for voice communication, PDA applications to improve the productivity, and where a simple User Interface generates warning tones any application. ID字段的值在8到253间变化,255当前留待新设计需要附加指派而使用。 ID field values ​​in the 8-253 changes, the current 255 left to new designs desire additional designation used.

音频采样计数字段(Audio Sample Count field) (2字节)'指定了该分组内的音频采样数。 Audio Sample Count field (Audio Sample Count field) (2 bytes) 'specifies the number of audio samples in this packet.

每采样和分组比特数字段(Bits Per Sample and Packing field)包含1字节, 指定了音频数据的间隔格式。 Bits per sample and a packet number field (Bits Per Sample and Packing field) contains 1 byte that specifies the format of audio data interval. 通常使用的格式是位4至0定义每PCM音频采样的比特数。 Format commonly used definition of the number of bits per PCM audio sample bits 4-0. 然后,位5指定数字音频数据釆样是否被分组。 Bit 5 then specifies whether or not the digital audio data samples are grouped Bian. 如上所述,图12说明了经分组和字节对齐的音频采样间的差异。 As described above, FIG. 12 illustrates the difference between the packet and byte-aligned by the audio samples. 位5的值"0"表示数字音频数据字段内的各连续PCM音频采样与接口字节边界字节对齐,而值"1"表示各连续PCM音频采样相对于前一音频采样被打包。 5 bit value "0" indicates aligned audio samples within the Digital Audio Data field of each successive PCM byte with the interface byte boundary, and a value of "1" indicates that each successive PCM audio sample is packed up against the previous audio sample. 该位仅当位4至0中定义的值(每PCM音频采样的比特数)并非八的倍数时有效。 This bit is effective only when the value (the number of bits per PCM audio sample) is not a multiple of eight bits 4 through 0 define the time. 位7至6留待系统设计期望附加指派时使用,并且一般被设为值零。 Bit used when the system design is desirable left additional designation 7-6, and is generally set to a value of zero.

音频采样率字段(Audio Sample Rate field) (1字节)指定了音频PCM采样率。 Audio Sample Rate field (Audio Sample Rate field) (1 byte) specifies the audio PCM sample rate. 所使用的格式是值0表示每秒8000(sps)采样的速率,值l表示16000 sps,值2 表示24000 sps,值3表示32000 sps,值4表示40000 sps,值5表示48000 sps, 值6表示11025 sps,值7表示22050 sps,且值8表示44100,值9至15留待将来使用,因此它们现在被设为零。 Format used is a value of 0 indicates a rate of 8000 per second (SPS) sampled value of l is 16000 sps, value of 2 indicates 24000 sps, value of 3 indicates 32000 sps, value of 4 indicates 40000 sps, value of 5 represents the 48000 sps, value of 6 It represents 11025 sps, value of 7 represents 22050 sps, and value of 8 represents 44100, the value of 9 to 15 are reserved for future use, so they are now set to zero.

参数CRC字段(Parameter CRC field) (2字节)包含从分组长度到音频采样率的所有字节的16位CRC。 The Parameter CRC field (Parameter CRC field) (2 bytes) contains a 16-bit CRC of all bytes from the Packet Length to the Audio Sample Rate. 如果该CRC正常校验失败,则丢弃整个分组。 If the normal CRC check fails, then the entire packet is discarded. 数字音频数据字段包含要被播放的原始音频采样,并且形式通常为如无符号整数这样的线性格式。 Digital Audio Data field contains the raw audio samples to be played, and is usually in the form of non-linear format as unsigned integers such. 音频数据CRC字段(2字节)包含仅仅音频数据的16位CRC。 The Audio Data CRC field (2 bytes) contains a 16-bit data, only the audio CRC. 如果该CRC校验失败,则仍能使用音频数据,但是CRC差错计数增一。 If the CRC check fails, then the audio data can still be used, but the CRC error count is incremented by one.

C. 对于用户定义的流分组 C. For User-Defined Stream Packet

2字节的流ID号字段(Stre柳ID Number field)用于表示特定的视频流。 The 2-byte Stream ID Number field (Liu Stre ID Number field) is used to represent a particular video stream. flow

参数和流数据字段(Stream Parameters and Stream Data fields)的内容由MDDI 设备制造商定义。 Parameters and Stream Data fields Content (Stream Parameters and Stream Data fields) is defined by the MDDI equipment manufacturer. 2字节的流参数CRC字段(Stream Parameter CRC field)包含从分组长度开始到音频编码字节的所有字节的16位CRC。 The 2-byte Stream Parameter CRC field (Stream Parameter CRC field) contains all of the start byte to the Audio Coding byte from the packet length 16-bit CRC. 如果该CRC未能通过校验测,则丢弃整个分组。 If this CRC fails to check measurement, the entire packet is discarded. 2字节的流数据CRC字段(Stream Data CRC field)包含仅仅流数据的CRC。 The 2-byte Stream Data CRC field (Stream Data CRC field) contains a CRC of only the streaming data. 如果该CRC未能正常通过校验,则仍流数据的使用是任选的,这取决于应用的要求。 If this CRC fails to check by the normal, is still using the data stream is optional, depending on the requirements of the application. 视良好CRC而定的流数据的使用要求在确认CRC为好之前缓冲流数据。 CRC may be used depending on the well stream data buffering requirements in confirming CRC data stream prior to as well. 如果CRC未能通过校验,则CRC差错计数增一。 If the CRC fails to check, the CRC error count is incremented by one.

D. 对于色图分组 D. For Color Map packets

色图数据大小字段(Color Map Data Size field) (2字节)指定了该分组内色图数据字段内存在的色图表项的总数。 FIG color data size field (Color Map Data Size field) (2 bytes) specifies the total number of color map data packet in the memory field of the color chart items. 色图数据内的字节数是色图大小的3倍。 FIG number of bytes in the color data is three times the size of the color chart. 色图大小被设为零,不发送任何色图数据。 Color Map Size is set to zero, the color does not transmit any data in FIG. 如果色图大小为零,则色图偏移值仍被发出但被显示器忽略。 If the Color Map Size is zero, then the offset value is still emitted color chart but is ignored by the display. 色图偏移字段(Color Map Offset field) (2字节)指定了该分 FIG color offset field (Color Map Offset field) (2 bytes) specifies the points

组内从显示装置色图表开始处色图数据的偏移。 From the display device in the group at the beginning of a color chart color shift map data.

2字节的参数CRC字段(Parameter CRC field)包含从分组长度到音频编码字 The 2-byte Parameter CRC field (Parameter CRC field) containing an audio code word from the Packet Length to

节的所有字节的CRC。 CRC of all bytes Festival. 如果该CRC校验失败,则丢弃整个分组。 If the CRC check fails, then the entire packet is discarded.

对于色图数据字段而言,各色图单元为3字节值,其值第一字节指定蓝色的大小,第二字节指定绿色的大小,而第三字节指定了红色的大小。 For the Color Map Data field, the 3-byte color value is a view of the unit, the value of the first byte specifies the magnitude of blue, the second byte specifies the magnitude of green, and the third byte specifies the magnitude of red. 色图大小字段指定了色图数据字段内存在的3字节色图表项的数目。 Color Map Size field specifies the number of 3-byte color chart color map data item in the memory field. 如果单个色图不能适合一个视频数据格式和色图分组(Video Data Format and Color Map Packet),则可以通过在每个分组内发出具有不同色图数据和色图偏移(Color Map Data and Color Map Offsets)的多个分组而指定整个色图。 If a single color map can not fit into one Video Data Format and Color Map Packet (Video Data Format and Color Map Packet), it may be issued by each packet (Color Map Data and Color Map map data having different color and color shift of FIG. offsets) of the plurality of color map packets specify the entire.

2字节的色图数据CRC字段(Color Map Data CRC field)包含仅仅色图数据的CRC。 The 2-byte Color Map Data CRC field (Color Map Data CRC field) contains a CRC of only the color map data. 如果该CRC校验失败,则仍能使用色图数据,但CEC计数增一。 If the CRC check fails, the data can still use the color map, but by a number of CEC.

E. 对于反向链路封装分组 E. For Reverse Link Encapsulation Packets

反向链路标志字段(Reverse Link Flags field) (1字节)包含一组标志位来从显示器请求信息。 Reverse Link Flags field (Reverse Link Flags field) (1 byte) contains a set of flags to request information from the display. 如果一个位(这里是位O)被设为一,则主机用显示性能分组从显示器请求指定信息。 If a bit (here Bits O) is set to one, then the host requests the specified information from the display using display performance packet. 如果该位为零,则主机不需要来自显示器的信息。 If the bit is zero, then the host does not need the information from the display. 其余位(这里是位1至7)留待将来使用并且被设为零。 The remaining bits (here Bits 1 through 7) are reserved for future use and is generally set to zero.

反向速率除数字段(Reverse Rate Divisor field) (1字节)指定关于反向链路 On a reverse link designated reverse rate divisor field (Reverse Rate Divisor field) (1 byte)

数据时钟发生的MDDI—Stb周期数。 MDDI-Stb number of data clock cycles occurs. 反向链路数据时钟等于除以反向速率除数两倍的前向链路数据时钟。 Equals the reverse link data clock divided by two times the Reverse Rate Divisor front link data clock. 反向链路数据速率与反向链路数据链路以及反向链路上的接口类型有关。 Reverse link data rate and the data link and reverse link interface type on the reverse link related. 对于类型I接口而言,反向数据速率等于反向链路数据时钟,对于类型II、类型III和类型IV接口而言,反向数据速率分别等于反向链路数据时钟的两倍、四倍和八倍。 For purposes of Type I interface the reverse data rate equals the reverse link data clock, for Type II, category III and Type IV interfaces the reverse data rates equal two times reverse link data clock is four times and eight times.

转向1长度字段(Turn-Around 1 Length field) (1字节)指定了为转向1分配的总字节数。 Turn-Around 1 Length field (Turn-Around 1 Length field) (1 byte) specifies the total number of bytes allocated to a steering. 推荐转向1的长度是主机内MDDI—Data驱动器禁用输出所需的字节数。 The recommended length of Turn-Around 1 bytes within the host disables the MDDI-Data drivers desired output. 这基于上面讨论的输出禁用时间、前向链路数据速率、以及所使用的前向链路接口类型选择。 This is based on the output disable time discussed above, the forward link data rate, and the former is used to select link interface type. 上面给出转向l设置更完全的描述。 L steering set forth above is described more fully.

转向2长度字段(Turn-Around 2 Length field) (1字节)指定了为转向分配的总字节数。 Turn Around 2 Length field (Turn-Around 2 Length field) (1 byte) specifies the total number of bytes allocated to the steering. 推荐转向2的长度是显示器内MDDLData驱动器禁用它们的输出加上往返延时所需的字节数。 Recommended length of Turn MDDLData within the display driver to disable their outputs plus the number of bytes required for the round trip delay. 上面给出转向2设置的描述。 The above description is given steering set 2.

参数CRC字段(Parameter CRC field) (2字节)包含从分组长度到转向长度的所有比特的16位CRC。 The Parameter CRC field (Parameter CRC field) (2 bytes) contains a 16-bit CRC from the Packet Length to the Turn all the bit length. 如果该CRC未能通过校验,则丢弃整个分组。 If this CRC fails to check then the entire packet is discarded.

选通对齐字段(Strobe Alignment field) (3字节)包含一个值,使得MDDI—Stb 信号在全零字段的最后一位和反向数据分组字段的第一位之间的位边界处作出低到高的转变。 Strobe alignment field (Strobe Alignment field) (3 bytes) contains a value so that the MDDI-Stb signal is at a low position to a boundary between the first and last field of the Reverse Data Packets field to all zeros high transition. 这确保了MDDI一Stb信号以关于反向数据分组字段内字节边界一致的方式而工作。 This ensures that the MDDI Stb signals to a consistent manner on border bytes in the Reverse Data Packets field to work.

全零字段(All Zero field) (1字节)被设为等于零,并且用于确保在第一保护时间周期禁用线路驱动器之前MDDI—Data信号处在零状态。 All Zeros field (All Zero field) (1 byte) is set equal to zero, and for ensuring before disabling the line drivers in the first time period MDDI-Data protection signal is in a zero state.

转向1字段用于建立第一转向周期。 A steering field for establishing a first turn-around period. 由转向长度参数指定的字节数由该字段分配,以允许主机内的MDDI—Data线路驱动器在启用客户机(显示器)内的线路驱动器之前禁用。 The number of bytes specified by the Turn-Around Length parameter allocated by this field to allow the MDDI-Data line drivers in the host to disable before enabling the line drivers in the client (display). 主机在转向l的位O期间禁用其MDDI—Data线路驱动器,客户机(显示器)在转向1的最后一位后立即启用其线路驱动器。 Host disables its MDDI-Data line drivers during the Turn-l bit O, client (display) enables its line drivers immediately after the last bit 1 of the steering. MDDI—Stb信号好像转向周期为全零一样工作。 MDDI-Stb signal seemed to turn to the same period of work all zeros.

反向数据分组字段(Reverse Data Packets field)包含从客户机被发送至主机的一系列数据分组。 Reverse Data Packets field (Reverse Data Packets field) is sent from the client comprises a series of data packets to the host. 如前所述,发出填充符分组以填充未由其它分组类型使用的其余空间。 As described above, the remaining space filler packets sent to fill not used by other packet types.

转向2字段用于建立第二转向周期。 Turn Around 2 field is used for establishing a second turn-around period. 由转向长度参数指定的字节数由该字段分配。 The number of bytes specified by the Turn-Around Length parameter are assigned by the field.

驱动器再使能字段(Driver Re-enable field)使用等于零的1字节来确保全 Then the drive enable field (Driver Re-enable field) using a 1 byte is equal to zero to ensure full

部MDDIJ)ata信号在下一分组的分组长度字段之前被再使能。 Portion MDDIJ) ata signal is re-enabled prior to the Packet Length Field of the next packet. F.对于显示性能分组 F. For Display performance packet

协议版本字段(Protocol Version field)用2字节来指定由客户机使用的协议版本。 Protocol version field (Protocol Version field) with 2 bytes to specify a protocol version used by the client. 初始版本被设为等于零,而最小协议版本字段(Minimum Protocol Version field)用2字节来指定客户机能使用或解释的最小协议版本。 The initial version is set equal to zero, while the Minimum Protocol Version field (Minimum Protocol Version field) with 2 bytes to specify the minimum protocol version that the client can use and interpretation. 显示数据速率性能字段(Display Data Rate Capability field) (2字节)指定了显示器能在接口的前向链路上接收的最大数据速率,并且以每秒兆比特数(Mbps)的形式指定。 Data rate capability field display (Display Data Rate Capability field) (2 bytes) specifies the interface in front of the display can receive on the forward link maximum data rate, and specified as megabits per second (Mbps) of. 接口类型性能字段(Interface Type Capability field) (1字节)指定了前向和反向链路上支持的接口类型。 Interface Type field performance (Interface Type Capability field) (1 byte) specifies the interface types that are supported on the forward and reverse links. 这当前通过分别选择位0、位1或位2来选择前向链路上的类型II、 类型III或类型IV模式来表示,分别选择位3、位4或位5来选择反向链路上的类型II、类型III或类型IV模式;位6和7待用并被设为零。 This current were selected by the bits 0, 1, or Bit 2 to select to represent the former type of the link II, type III or type IV mode were selected Bit 3, Bit 4, or Bit 5 to select the reverse link type II, category III or type IV pattern; bits 6 and 7 stand and set to zero. 位图宽度和高度字段(Bitmap Width and Height field) (2字节)以像素指定了位图的宽度和高度。 The Bitmap Width and Height fields (Bitmap Width and Height field) (2 bytes) specifies a pixel width and height of the bitmap.

单色性能字段(Monochrome Capability field) (1字节)用于可以单色格式显示的分辨率比特数。 Capability field monochrome (Monochrome Capability field) (1 byte) for the number of bits of resolution that can be displayed in a monochrome format. 如果显示器不使用单色格式,则该值被设为零。 If the display does not use a monochrome format then this value is set to zero. 位7至4留待将来使用,因此被设为零。 Bit 7-4 reserved for future use, so it is set to zero. 位3至0定义了每个像素存在的灰度的最大比特数。 Bits 3 through 0 define the maximum number of bits of gradation for each pixel exists. 这四位能够为每个像素指定值1至15。 This four possible to specify values ​​of 1 to 15 for each pixel. 如果该值为零,则显示器不支持单色格式。 If the value is zero, then the monochrome format is not supported by the display.

色图性能字段(Colorraap Capability field) (3字节)指定了显示器内色图中存在的最大表项数。 FIG color capability field (Colorraap Capability field) (3 bytes) specifies the maximum number of entries within the display color present in FIG. 如果显示器不能使用色图格式,则该值为零。 If the display can not use the color map format then this value is zero.

RGB性能字段(RGB Capability field) (2字节)指定了能以RGB格式显示的分辨率的比特数。 RGB capability field (RGB Capability field) (2 bytes) specifies the number of bits of resolution that can be displayed in RGB format. 如果显示器不能使用RGB格式,则该值为零。 If the display can not use the RGB format then this value is zero. RGB性能字由三个分开的无符号值组成,其中:位3至0定义蓝色的最大比特数,位7至4定义绿色的最大比特数,而位11至8定义每个像素内红色的最大比特数。 Performance of three RGB word composed of separate unsigned values ​​where: Bits 3 through 0 define the maximum number of bits of blue, the maximum number of bits defined in bits 7-4 of green, and Bits 11 through 8 define the red in each pixel The maximum number of bits. 目前,位15至12 留待将来使用并且一般被设为零。 Currently, Bit 15-12 Reserved for future use and are generally set to zero.

Y Cr Cb性能字段(Y Cr Cb Capability field) (2字节)指定了能以Y Cr Cb 格式显示的分辨率的比特数。 Y Cr Cb performance field (Y Cr Cb Capability field) (2 bytes) specifies the number of bits of resolution that can be displayed in Y Cr Cb format. 如果显示器不使用YCr Cb格式,则该值为零。 If the monitor is not used YCr Cb format then this value is zero. YCr Cb性能字由三个分开的无符号值组成,其中:位3至0定义Cb采样中的最大比特数,位7至4定义Cr采样中的最大比特数,位11至8定义Y采样中的最大比特数, 而位15至12留待将来使用并且一般被设为零。 The YCr Cb performance value word is composed of three separate unsigned composition, wherein: the maximum number of bits defined in bits in the Cb sample 3-0, the maximum number of bits defined in bits in the Cr sample 7-4, Bits 11 through 8 define the samples Y the maximum number of bits, while bits 15 through 12 are reserved for future use and is generally set to zero.

显示器特征性能指示符字段(Display Feature Capability Indicators field) 使用了4字节,包含一组标志,只是显示器内支持的特定特征。 Performance Indicators field of the Display Feature (Display Feature Capability Indicators field) using 4 bytes, contains a set of flags, but the specific features supported by the display. 设为1的位表示性 Set of 1 indicates

能得到支持,而设为零的位表示不支持该性能。 Get support, and a bit set to zero indicates that the corresponding performance. 位0的值表示是否支持位图块传输 Bit value of 0 indicates whether or not Bitmap Block transmission

分组(Bitmap Block Transfer Packet)(分组类型71)。 Packet (Bitmap Block Transfer Packet) (packet type 71). 位1、 2和3的值分别表示是否支持位图区域填充分组(分组类型72)、位图图案填充分组(分组类型73)、或通信链路数据信道分组(分组类型74)。 Bit value of 1, 2 and 3 indicate whether or not Bitmap Area Fill Packet (packet type 72), Bitmap Pattern Fill Packet (packet type 73), or Communication Link Data Channel Packet (packet type 74). 位4的值表示显示器是否具有能力来使一个颜色透明,而位5和6的值表示显示器是否能分别以分组格式接收视频数据或音频数据,而位7的值表示显示器是否能发出来自照相机的反向链路视频流。 Value for Bit 4 indicates whether the display has the capability to make one color transparent, the value for Bit 5 and 6 indicates whether the monitor can receive the video data or audio data in packet format, and the value for Bit 7 indicates if the display can be issued from the camera reverse-link video stream. 位11 和12的值分别或表示客户机何时与指示装置通信并能发送和接收指示装置数据分组,或表示客户机何时与键盘通信并能发送和接收键盘数据分组。 11 and 12 bit values ​​are expressed or when the client and to transmit the communication apparatus and indicating means indicating packet reception, or when the client indicates and can send and receive Keyboard Data Packets keyboard communication. 位13至31当前留待将来使用或系统设计者有用的替代分配,并且一般被设为零。 Bits 13-31 is currently reserved for future use or distribution useful alternative system designer, and is generally set to zero.

显示器视频帧速率性能字段(Display Video Frame Rate Capability field) (1 The Display Video Frame rate capability field (Display Video Frame Rate Capability field) (1

字节)以每秒帧数指定显示器的最大视频帧更新性能。 Byte) specifies the display in frames per second is the maximum video frame update capability. 主机可以选择比该字段中夫见定的值更低的速率更新图像。 Host may choose to update the image field than the husband see a lower value predetermined rate.

音频缓冲深度字段(Audio Buffer D印th field) (2字节)指定了每个音频流专用的显示器内的弹性缓冲器深度。 Audio Buffer Depth field (Audio Buffer D printing th field) (2 bytes) specifies the depth of the elastic buffer in a dedicated display for each audio stream.

音频信道性能字段(Audio Channel Capability field) (2字节)包含一组标志,表示显示器(客户机)支持哪些音频信道。 The audio channel performance field (Audio Channel Capability field) (2 bytes) contains a set of flags to indicate which audio channels the display (client) support. 设为1的位表示支持该信道,设为零的位表示不支持该信道。 Bits set to 1 indicates that the support channel bits set to zero indicates that channel is not supported. 位位置被分配给不同的信道,使得位位置O、 1、 2、 3、 4、 5、 6和7分别表示左前、右前、左后、右后、前中、亚低音扬声器、左环绕以及右环绕信道。 After the bit positions are assigned to different channels, so that the bit position O, 1, 2, 3, 4, 5, 6 and 7, respectively left front, right front, left rear, right, front, subwoofer, left surround, and right surround channels. 位8至15当前留待将来使用,并且一般被设为零。 8 to 15 bits currently reserved for future use and generally set to zero.

前向链路的2字节音频采样率性能字段(Audio Sample Rate Capability field) 包含一组标志,表示客户机装置的音频采样率性能。 2 bytes before the audio sample rate capability field of the link (Audio Sample Rate Capability field) contains a set of flags to indicate the audio sample rate capability of the client device. 位位置被分配给不同速率,由此,位0、 1、 2、 3、 4、 5、 6、 7和8分别被分配给每秒8000、 16000、 24000、 32000、 40000、 48000、 11025、 22050和44100个采样,其中位9至15根据需要留待将来或替代速率的使用,因此它们现在被设为"0"。 Bit positions are assigned to the different rates, thus, bit 0, 1, 2, 3, 4, 5, 6, 7, and 8 are assigned to 8,000 per second, 16000, 24000, 32000, 40000, 48000, 11025, 22050 and 44,100 samples, where necessary, 9-15 bits reserved for future or alternative rate, so they are now set to "0." 把这些位中的一位设置为"l"表示支持特定的釆样率,设为"0"表示不支持该采样率。 The one set of these bits is "l" Bian expressed support for a specific sample rate, set to "0" indicates that the corresponding sampling rate.

最小子帧速率字段(Minimum Sub-frame Rate field) (2字节)以每秒帧数指定了最小子帧速率。 Sub-frame Rate field (Minimum Sub-frame Rate field) (2 bytes) specifies the frames per second Sub-frame rate. 最小子帧速率使显示器状态更新速率足以读取显示器内的某些传感器或指示装置。 Sub-frame rate so that the display status update rate within certain sensors or pointing device sufficient to read the display.

反向链路的2字节麦克风采样率性能字段(Mic Sample Rate Capability field) 包含一组标志,表示客户机装置内麦克风的音频釆样率性能。 The 2-byte Mic Sample Rate field performance of the reverse link (Mic Sample Rate Capability field) contains a set of flags to indicate the audio sample rate capability preclude the client device microphone. 因MDDI起见,客户机装置麦克风被配置成支持至少每秒8000个采样的速率。 Due to reasons of MDDI, a client device microphone is configured to support at least a rate of 8000 samples per second. 该字段的位位置被分配 Bit positions are assigned to the field

给不同速率,由此,位0、 1、 2、 3、 4、 5、 6、 7禾B 8分别用于表示每秒8000、 16000、 24000、 32000、 40000、 48000、 11025、 22050和44100个采样(SPS),其中位9至15留待将来或替代速率的使用,因此它们现在被设为"0"。 To different rates, thus, bit 0, 1, 2, 3, 4, 5, 6, 7 Wo B 8 are used to represent 8,000, 16,000, 24,000, 32,000, 40,000, 48,000, 11,025, 22,050 and 44,100 per second sampling (the SPS), wherein bits 9-15 are reserved for future use or alternative rate, so they are now set to "0." 把这些位中的一位i交置为"1"表示支持特定的采样率,设为"0"表示不支持该釆样率。 These bits to a cross-i is set to "1" indicates that support for a particular sample rate is set to "0" indicates that sample rate is not supported Bian. 如果未连接Y壬何麦克风,则各麦克风采样速率性能位被设为等于零。 If Y is not connected to any non microphone, the microphone sampling rate of each bit is set equal to zero performance.

内容保护类型字段(Content Protection Type field) (2字节)包含一组标志, 表示由显示器支持的数字内容保护的类型。 Content Protection Type field (Content Protection Type field) (2 bytes) contains a set of flags to indicate the type of digital content protected by the support of the display. 目前,位位置1用于表示何时支持DTCP, 位位置1用于表示何时支持HDCP,而位位置2至15留待所期望或可用的其它保护方案的使用,因而它们目前被设为零。 Currently, bit position 1 is used to indicate when supporting the DTCP, when the bit position 1 is used to indicate support for the HDCP, and the left bit positions 2-15 or other desired protection scheme is available, so they are currently set to zero.

G. 对于显示器请求和状态分组 G. For Display Request and Status Packet

反向链路请求字段(Reverse Link Request field) (3字节)指定了在将信息发送至主机的下一子帧内显示器在反向链路内所需的字节数。 Reverse Link Request field (Reverse Link Request field) (3 bytes) specifies the number of bytes required in the reverse link transmission information to the host in the next sub-frame display.

CRC差错计数字段(CRC Error Count field) (1字节)表示自媒体帧开始以来已发生多少CRC差错。 CRC error count field (CRC Error Count field) (1 byte) represents the media since the start of the frame number of CRC error has occurred. CRC计数在发出子帧计数为零的子帧报头分组时被重置。 The CRC count is reset when the frame Header Packet Sub-frame Count sent in sub-zero. 如果CRC差错的实际数量超出255,则该值在255处饱和。 If the actual number of CRC errors exceeds 255 then this value is saturated at 255.

性能变化字段(Capability Change field)用1字节表示显示器性能的变化。 Field performance changes (Capability Change field) shows the change in display performance by 1 byte. 如果用户连接了诸如麦克风、键盘或显示器这样的外部设备,或者对于某些其它原因而言,则这会发生。 If the user is connected, such as a microphone, keyboard or display of such external device, or for some other reason, this will happen. 当位[7:0]等于0时,则性能自上一次发出显示器性能分组以来未发生变化。 When Bits [7: 0] is equal to 0, then the performance issue since the last display performance did not change since the packet. 然而,当位[7:0]等于1至255时,则性能已变化。 However, when bits [7: 0] 255 is equal to 1, the performance has changed. 显示性能分组被检査以确定新的显示特性。 Display performance of the packet is examined to determine the new display characteristics.

H. 对于比特块传输分组 H. block of bits for transmission of the packet

窗口左上坐标X值和Y值字段(Window Upper Left Coordinate X Value and Y Value field)使用了2个字节,各指定要被移动的窗口的左上角坐标的X和Y 值。 Window Upper Left Coordinate X Value and Y Value fields (Window Upper Left Coordinate X Value and Y Value field) use 2 bytes each to specify the upper left corner of the window to be moved to the X and Y coordinate values. 窗口宽度和高度字段(Window Width and Height field)使用了2个字节,各指定了要被移动的窗口的宽度和高度。 Window Width and Height fields (Window Width and Height field) use 2 bytes each to specify the width and height of the window to be moved. 窗口X移动和Y移动字段(Window X Movement and Y Movement field)使用了2字节,每一个分别指定了应被水平或垂直移动的窗口的像素数。 The Window X Movement and Y Movement fields (Window X Movement and Y Movement field) uses 2 bytes each are designated by the number of pixels to be horizontal or vertical movement of the window. X的正值使窗口向右移动,负值使其向左移动,而Y的正值使窗口向下移动,而负值使其向上移动。 Positive values ​​for X cause the window moves to the right, negative values ​​cause movement to the left, while positive values ​​for Y cause the window moves down, and negative values ​​cause upward movement.

I.对于位图区域填充分组 I. For Bitmap Area Fill Packet

窗口左上坐标X值和Y值字段(Window Upper Left Coordinate X Value and Window Upper Left Coordinate X Value and Y Value fields (Window Upper Left Coordinate X Value and

Y value fields)使用了2字节,各指定了要被填充的窗口左上角坐标的X和Y值。 Y value fields) use 2 bytes each to specify the upper left corner of the window to be filled in the X and Y coordinate values. 窗口宽度和高度字段(Window Width and Height fields) (2字节)指定了要被填充的窗口的宽度和高度。 Window Width and Height fields (Window Width and Height fields) (2 bytes) specify the width and height of the window to be filled. 视频数据格式描述符字段(Video Data Format Descriptor field) (2字节)指定了像素区域填充值的格式。 Video Data Format Descriptor field (Video Data Format Descriptor field) (2 bytes) specifies the format of the pixel values ​​of the filling region. 该格式与视频流分组内同一字段的格式相同。 The format and the video format within the same field of the same packet stream. 像素区域填充值字段(Pixel Area Fill Value field) (4字节)包含要被填充入上述字段指定的窗口的像素值。 Pixel Area Fill Value field (Pixel Area Fill Value field) (4 bytes) contains the pixel value to be filled into the window specified in the above field. 该像素的格式在视频数据格式描述符字段内指定。 The format of this pixel is specified in the Video Data Format Descriptor field.

J.对于位图图案填充分组 J. For Bitmap Pattern Fill Packet

窗口左上坐标X值和Y值字段(Window Upper Left Coordinate X Value and Window Upper Left Coordinate X Value and Y Value fields (Window Upper Left Coordinate X Value and

Y value fields)使用了2字节,各指定了要被填充的窗口左上角坐标的X和Y值。 Y value fields) use 2 bytes each to specify the upper left corner of the window to be filled in the X and Y coordinate values. 窗口宽度和高度字段(Window Width and Height fields)(各为2字节)指定了要被填充的窗口的宽度和高度。 Window Width and Height fields (Window Width and Height fields) (2 bytes each) specify the width and height of the window to be filled. 图案宽度和图案高度(Pattern Width and Pattern Height fields)(各为2字节)分别指定了填充图案的宽度和高度。 Pattern Width and Pattern Height (Pattern Width and Pattern Height fields) (2 bytes each) specify the width and height of the fill pattern. 2字节的视频数据格式描述符字段(Video Data Format Descriptor field)指定了像素区域填充值的格式。 The 2-byte Video Data Format Descriptor field (Video Data Format Descriptor field) specifies the format of the pixel values ​​of the filling region. 图11说明了视频数据格式描述符怎样被编码。 Figure 11 illustrates how the Video Data Format Descriptor is coded. 在视频流分组中相同的字段格式也相同。 In the same video stream packet format same field.

参数CRC字段(Parameter CRC field) (2字节)包含从分组长度到视频格式描述符的所有字节。 The Parameter CRC field (Parameter CRC field) (2 bytes) contains all bytes from the Packet Length to the Video Format Descriptor. 如果该CRC校验失败,则丢弃整个分组。 If the CRC check fails, then the entire packet is discarded. 图案像素数据字段(Pattern Pixel Data field)包含原始视频信息,指定了格式为由视频数据格式描述符所指定的格式的填充图案。 The Pattern Pixel Data field (Pattern Pixel Data field) contains raw video information, the format specified by the Video Data Format Descriptor fill pattern specified format. 数据被分组成字节,各行的第一像素必须字节对齐。 Data bytes are grouped, the first pixel of each row must be byte-aligned. 填充图案数据每次被发送一行。 Fill pattern data is transmitted a row. 图案像素数据CRC字段(Pattern Pixel Data CRC field)(2字节)仅包含图案像素数据的CRC。 Pattern Pixel Data CRC field (Pattern Pixel Data CRC field) (2 bytes) contains a CRC of only the Pattern Pixel Data. 如果该CRC校验失败,则仍旧使用图案像素数据,但是CRC差错计数应该增一。 If the CRC check fails, then the Pattern Pixel Data is still used, but the CRC error count should be incremented by one.

K.通信链路数据信道分组 K. Communication Link Data Channel Packet

参数CRC字段(Parameter CRC field) (2字节)包含从分组长度到视频格式描述符的所有字节的16位CRC。 The Parameter CRC field (Parameter CRC field) (2 bytes) contains a 16-bit CRC of all bytes from the Packet Length to the Video Format Descriptor. 如果该CRC校验失败,则丢弃整个分组。 If the CRC check fails, then the entire packet is discarded.

通信链路数据字段(Communication Link Data field)包含来自通信信道的原 Communication Link Data field (Communication Link Data field) comprising a communication channel from the original

始数据。 The beginning of the data. 该数据简单地被传递到显示器内的计算装置中。 This data is simply transferred to the computing device in the display.

通信链路数据CRC字段(Communication Link Data CRC field) (2字节)仅包含通信链路数据的16位CRC。 Communication Link Data CRC field (Communication Link Data CRC field) (2 bytes) contains only the Communication Link Data CRC 16-bit. 如果该CRC校验失败,则仍旧使用通信链路数据, 但是CRC差错计数应该增一。 If the CRC check fails, then the Communication Link Data is still used, but the CRC error count should be incremented by one.

L.对于接口类型切换请求分组 L. For Interface Type Handoff Request Packet

接口类型字段(Interface Type field) (1字节)指定了要使用的新接口类型。 Interface Type field (Interface Type field) (1 byte) specifies the new interface type to use. 该字段内的值以下列方式指定了接口类型。 Value in the field to specify the interface type in the following manner. 如果位7中的值等于0,则类型切换请求用于前向链路,如果等于l,则类型切换请求用于反向链路。 If the value of 7 is equal to 0, then the Type handoff request is for the forward link, if equal to l, the Type handoff request is for the reverse link. 位6至3留待将来使用,并且一般被设为零。 Bits 6-3 are reserved for future use and generally set to zero. 位2至0用于定义要使用的接口类型,其中值l表示向类型I模式的切换,值2表示向类型II模式的切换,值3表示向类型III模式的切换,而值4表示向类型IV模式的切换。 For bits 2-0 define the type of interface to be used, where l denotes the value of the switching to the Type I mode, value of 2 a handoff to Type II mode, a value of 3 indicates the mode is switched to the type III, type and value of 4 indicates the IV switching mode. 值0以及5至7留待将来指定替代模式或模式的组合。 Combinations of values ​​0 and 5 through 7 are reserved for future or alternative models specified mode.

M.对于接口类型确认分组 M. For Interface Type acknowledgment packet

接口类型字段(Interface Type field) (1字节)的值确认要使用的新接口类型。 Interface Type field value (Interface Type field) (1 byte) to confirm a new interface type to use. 该字段内的值以下列方式指定接口类型。 Value in this field specifies the interface type in the following manner. 如果位7等于0,则类型切换请求用于前向链路,或者,如果等于l,则类型切换请求用于反向链路。 If bit 7 is equal to 0, then the Type handoff request is for the forward link, or, if equal to l, the Type handoff request is for the reverse link. 位位置6至3根据需要目前保留用于分配其它接口类型,并且一般被设为零。 Bit positions 6 through 3 are currently reserved for dispensing required other interface types, and is generally set to zero. 然而,位位置2至0 用于定义要使用的接口类型,其中值O表示否定确认,或者不能执行所请求的切换, 值l、 2、 3和4分别表示向类型I、类型II、类型III和类型IV模式的切换。 However, bit positions 2-0 to define the type of interface to be used, where O represents the value of a negative acknowledgment, or to perform the requested handover, the value of l, 2, 3 and 4 show the type I, type II, category III type IV and the mode switching. 值5至7留待将来根据需要分配替代模式。 Values ​​5-7 are reserved for future alternative mode allocated as needed.

N.对于执行类型切换分组 N. For Perform Type Handoff Packets

1字节的接口类型字段(Interface Type field)表示要使用的新接口类型。 The 1-byte Interface Type field (Interface Type field) indicates the new interface type to use. 该字段内的值首先通过用位7的值来确定类型切换用于前向还是反向链路而指定接口类型。 Value in this field by a first value of Bit 7 to determine the type of handover to the front or to the designated reverse link interface type. 值"O"表示类型接口请求用于前向链路,值"l"表示接口请求用于反向链路。 Value "O" represents the type of interface request for the forward link, the value of "l" represents the interface request for the reverse link. 位6至3留待将来使用,并且同样一般被设为零值。 Bits 6-3 are reserved for future use, and as such are generally set to a zero value. 然而,位2至0用于定义要使用的接口类型,其中值l、 2、 3和4分别表示向类型I、类型II、类型III 和类型IV模式的切换。 However, bits 2-0 define the type of interface for use, wherein the value of l, 2, 3 and 4 show the switching type I, type II, category III and Type IV pattern. 这些位的值5至7的使用留待将来根据需要分配替代模式。 These values ​​using bits 5 through 7 are reserved for future needs to be allocated according to an alternative mode. 0.对于前向音频信道使能分组 0. For the first packet to enable the audio channel

音频信道使能屏蔽字段(Audio Channel Enable Mask field) (1字节)包含一组标志,表示客户机内要被使能的音频信道。 Audio channels Enable Mask field (Audio Channel Enable Mask field) (1 byte) contains a set of flags to indicate the audio channels to be able to make the client computer. 设为1的位使能相应的信道,而设为零的位禁用相应的信道。 Bit 1 is set to the corresponding channel is enabled, while bits set to zero disables the corresponding channel. 位0至5分配信道0至5,分别针对左前、右前、左后、 右后、前中、以及亚低音扬声器信道。 Bits 0-5 allocated channels 0-5, respectively, for the left front, right front, left rear, right rear, front center, and subwoofer channel. 位6和7留待将来使用,并且同时被设为零。 Bits 6 and 7 are reserved for future use, and at the same time is set to zero.

P.对于反向音频采样率分组 P. For Reverse Audio Sample Rate Packet

音频采样率字段(Audio Sample Rate field) (1字节)指定了数字音频釆样率。 Audio Sample Rate field (Audio Sample Rate field) (1 byte) specifies the digital audio sample rate Bian. 该字段的值分配到不同的速率,其中值O、 1、 2、 3、 4、 5、 6、 7和8分别用于f旨定每秒8000、 16000、 32000、 40000、 48000、 11025、 22050以及44100个采样(SPS), 值9至254留待根据需要的其它速率的使用,因此它们目前被设为"0"。 The value of this field is assigned to a different rate, wherein the value of O, 1, 2, 3, 4, 5, 6, 7, and 8 are given for the purpose f per 8,000, 16,000, 32,000, 40,000, 48,000, 11,025, 22,050 and 44,100 samples (the SPS), the value of 9-254 left according to other desired rate of use, so they are currently set to "0." 值255 用于禁用反向链路音频流。 Value of 255 is used to disable the reverse-link audio stream.

采样格式字段(Sa即le Format field) (1字节)指定了数字音频采样的格式。 Sample Format field (Sa i.e. le Format field) (1 byte) specifies the format of the digital audio samples. 当位[1:0]等于0时,数字音频采样为线性格式,当它们等于l时,数字音频采样为y-律格式,而当它们等于2时,数字音频采样为A-律格式。 When Bits [1: 0] is equal to 0, the digital audio samples to linear format, when they are equal to L, the digital audio samples is y- Law format, and when they are equal to 2, the digital audio samples and A- Law format. 位[7:2]留待音频格式分配中根据需要的替代使用,并且一般被设为等于零。 Bits [7: 2] left audio distribution required according to an alternative format to use, and is generally set to zero.

Q.对于数字内容保护开销分组 Q. For Digital Content Protection Overhead Packets

内容保护分组字段(Content Protection Type field) (1字节)指定了所使用的数字内容保护方法。 Content Protection packet field (Content Protection Type field) (1 byte) specifies the digital content protection method being used. 值O表示数字传输内容保护(DTCP),而值l表示高带宽数字内容保护系统(HDCP)。 O value indicates Digital Transmission Content Protection (DTCP), and the value of l denotes High-bandwidth Digital Content Protection System (HDCP). 值范围2至255目前未指定,但留待根据需要的替代保护方案的使用。 No range 2-255 currently assigned, but left using the alternative protection scheme needed. 内容保护开销消息字段(Content Protection Overhead Messages field) 是可变长度字段,包含在主机和客户机间发送的内容保护消息。 Content Protection Overhead Messages field (Content Protection Overhead Messages field) is a variable length field containing content transmitted between the host and client protected messages.

R.对于透明色使能分组 R. enable the transparent color packet

透明色使能字段(Transparent color Enable field) (1字节)指定了透明色模式何时被使能或禁用。 Transparent Color Enable field (Transparent color Enable field) (1 byte) specifies when transparent color mode is enabled or disabled. 如果位0等于0,则禁用透明色模式,如果等于l,则使能透明色模式,且透明色由下列两个参数指定。 If bit 0 is equal to 0, then transparent color mode is disabled, if equal to l, the transparent color mode is enabled and the transparent color is specified by the following two parameters. 该字节的位1至7留待将来使用并且被设为零。 The byte bit 1-7 are reserved for future use and is generally set to zero.

视频数据格式描述符字段(Video Data Format Descriptor field) (2字节) 指定了像素数据填充值的格式。 Video Data Format Descriptor field (Video Data Format Descriptor field) (2 bytes) specifies the format of the pixel data of padding values. 图ll说明了视频数据格式描述符怎样被编码。 FIG. Ll illustrates how the Video Data Format Descriptor is coded. That

格式一般与视频流分组内同一字段的格式相同。 Format video format is generally the same as the same field in the packet stream.

像素区域填充值字段(Pixel Areal Fill Value field)使用了为要被填入上面指定的窗口的像素值分配的4字节。 Pixel Area Fill Value field (Pixel Areal Fill Value field) to be used to fill the window specified above 4 byte pixel value distribution. 该像素的值在视频数据格式描述符字段内指定。 Value of the pixel is specified in the Video Data Format Descriptor field.

S.对于往返延时测量分组 Round trip delay measurement packet for S.

参数CRC字段(Parameter CRC field) (2字节)包含从分组长度到视频格式描述符的所有字节的16位CRC。 The Parameter CRC field (Parameter CRC field) (2 bytes) contains a 16-bit CRC of all bytes from the Packet Length to the Video Format Descriptor. 如果该CRC校验失败,则丢弃整个分组。 If the CRC check fails, then the entire packet is discarded.

选通对齐字段(2字节)包含一个值,使得MDDI一Stb信号在紧接着该分组全零字段的第一位之前的位边界作出低到高的转变。 Strobe alignment field (2 bytes) contains a value so that the MDDI Stb signal to a low to high transition at the bit boundary immediately before the first bit of the All Zeros field in the packet. 这确保MDDI—Stb信号在任何发出该分组的时候以与关于测量周期内字节边界一致的方式工作。 This ensures that the MDDI-Stb signal operates in a manner consistent with respect to the byte boundaries within the measurement period when any of the packet sent.

全零字段(All Zero field) (1字节)包含零来确保所有MDDI_Data信号在第一保护时间周期禁用线路驱动器之前处于零状态。 All Zero field (All Zero field) (1 byte) contains zeroes to ensure that all MDDI_Data in the zero state prior to disabling the line drivers in the signal a first guard time period.

保护时间l字段(Guard Time 1 field) (8字节)用于允许主机内的MDDI—Data 线路驱动器在使能客户机(显示器)内的线路驱动器之前禁用。 L guard time field (Guard Time 1 field) (8 bytes) is used to allow the MDDI-Data line host driver disable before the line drivers enabled client (display) therein. 主机在保护时间1 的位0期间禁用其MDDI一Data线路驱动器,显示器在保护时间1的最后一位后立即使能其线路驱动器。 A host disables its MDDI Data line drivers during bit 0 of Guard Time 1, can display its line drivers immediately after the last bit in the Guard Time 1.

测量周期字段(Measurement Period field)是512字节的窗,用于允许显示器在前向链路上所用的数据速率一半处用0xff、 Oxff、 0x0应答。 Measurement Period field (Measurement Period field) is 512 byte window used to allow the display of the 0xff, Oxff, 0x0 response to the data rate of the forward link used by a half. 该速率对应于反向链路速率除数为l。 This rate corresponds to a Reverse Link Rate Divisor l. 显示器在测量周期的开始处立即返回该应答。 Display returns this response immediately at the beginning of the measurement period. 该应答将在主机处测量周期的第一位开始后刚好在链路的往返延时处在主机处被接收。 The answer will just round-trip delay of the link is received at a host at the first start after the measurement period at the host. 显示器内的MDDIJ)ata线路驱动器在紧接着来自显示器的0xff、 Oxff、 0x0应答的前后被禁用。 MDDIJ within the display) ATA line drivers are disabled in the monitor immediately from 0xff, Oxff, before and after the 0x0 response.

保护时间2字段(Guard Time 2 field) (2字节)内的值允许客户机MDDI—Data 线路驱动器在使能主机内的线路驱动器之前禁用。 Value in the Guard Time 2 field (Guard Time 2 field) (2 bytes) allows Client MDDI-Data line drivers to disable before line drivers so that the energy within the host. 保护时间2总是存在,但仅在往返延时为可以在测量周期内测得的最大量时才需要。 Guard Time 2 is always there, but only for the round-trip delay can be measured over the measurement period maximum amount when needed. 客户机在保护时间2的位0 期间禁用其线路驱动器,主机紧接着保护时间2的最后一位后使能其线路驱动器。 The client disables its line drivers during bit 0 of Guard Time 2, the host immediately after the last time 2 protection enable its line drivers.

驱动器再使能字段(Driver Re-enable field) (1字节)被设为等于零,以确保所有MDDI—Data信号在下一分组的分组长度字段前被再使能。 Then the drive enable field (Driver Re-enable field) (1 byte) is set equal to zero to ensure that all MDDI-Data signals are re-enabled prior to the Packet Length Field of the next packet.

XV.结论 XV. Conclusion

虽然上面已描述了本发明的各种实施例,然而可以理解,它们仅通过示例来给出,而非限制。 While the foregoing has been a description of various embodiments of the present invention, it is understood that they are given merely by way of example, and not limitation. 因此,本发明的宽泛程度和范围不应由上述示例性实施例所限制, 而仅应按照所附权利要求和它们的等价物来定义。 Thus, the degree and broad scope of the invention should not be limited by the above-described exemplary embodiments, but should be defined only in accordance with the appended claims and their equivalents.

Claims (105)

  1. 1. 一种在通信路径上以高速率在主机装置和客户机装置之间传送数字显示数据的数字数据接口,其特征在于包括:多个分组结构,它们链接在一起以形成用于在所述通信路径上在主机装置和客户机装置之间传送一组预先选定的数字控制和显示数据的通信协议;以及驻留在通过所述通信路径与所述客户机装置耦合的所述主机装置中的至少一个链路控制器,用于产生、发送、并且接收形成所述通信协议的分组,从而将数字显示数据组成一个或多个类型的数据分组。 A display on a communication path to the high-rate digital transmission between a host device and a client device digital data interface data, comprising: a plurality of packet structures linked together to form them for the on the communication path to transmit a set of communication protocols and control the display of digital data between a pre-selected host device and a client device; and the host resident apparatus through said communications path coupled to the client device in at least one link controller for generating, transmitting, and receiving packets forming said communications protocol, so that the digital display data into one or more types of data packets.
  2. 2. 如权利要求1所述的接口,其特征在于还包括,所述分组在媒体帧内组合在一起,媒体帧具有预定义固定长度、并且在所述主机装置和客户机装置之间被传送,其中预定数量的所述分组具有不同且可变的长度。 2. The interface according to claim 1, characterized by further comprising said packets grouped together in a media frame, the media frames having a predefined fixed length, and is transferred between the host device and a client device wherein a predetermined number of said packets have differing and variable lengths.
  3. 3. 如权利要求l所述的接口,其特征在于,还包括子帧报头分组,它位于来自所述主机装置的分组传送的开头。 L Interface according to claim 2, characterized in that, further comprising a Sub-frame Header Packet, which is located at the beginning of transfers of packets from said host device.
  4. 4. 如权利要求l所述的接口,其特征在于,数据在所述通信路径上在所述主机装置和客户机装置之间双向传送。 L Interface according to claim 4, characterized in that the data transmitted bi-directionally over said communication path between said host device and a client device.
  5. 5. 如权利要求l所述的接口,其特征在于,所述链路控制器是主机链路控制器,并且还包括驻留在所述客户机装置内的至少一个客户机链路控制器,所述客户机装置通过所述通信路径与所述主机装置耦合,该链路控制器用于产生、发送、并且接收形成所述通信协议的分组,从而将数字显示数据组成一个或多个类型的数据分组。 5. The interface according to claim l, wherein said link controller is a host link controller and further comprising at least one client link controller residing in said client device, said client device through said communications path is coupled to the host device, the link controller for generating, transmitting, and receiving packets forming said communications protocol, so that the digital display data into one or more types of data grouping.
  6. 6. 如权利要求5所述的接口,其特征在于,所述主机链路控制器包括一个或多个差分线路驱动器;且所述客户机链路控制器包括与所述通信路径耦合的一个或多个差分线接收机。 6. The interface according to claim 5, wherein said host link controller comprises one or more differential line drivers; and said client link controller comprises one coupling to said communication path or a plurality of differential line receivers.
  7. 7. 如权利要求l所述的接口,其特征在于,还包括视频类型数据的一个或多个视频流分组,音频类型数据的音频流分组用于在前向链路上将数据从所述主机装置传送到所述客户机装置来显现给客户机装置用户。 7. The interface according to claim l, characterized by further comprising a video type data packets of one or more video streams, the audio stream type of audio data packets on a forward link data to the host from means for transmitting to the client device to appear to the client device user.
  8. 8. 如权利要求l所述的接口,其特征在于,还包括一个或多个反向链路封装分组,用于所述客户机装置将数据传送到所述主机装置。 8. The interface according to claim l, characterized by further comprising one or more Reverse Link Encapsulation Packet to the client device to transmit data to the host device.
  9. 9. 如权利要求l所述的接口,其特征在于,所述驻留在所述主机装置中的至少一个链路控制器从客户机装置请求显示性能信息,以便确定所述客户机装置能通过所述接口而提供何种类型的数据和数据速率。 9. The interface according to claim l, wherein said at least one link controller residing in said host device, a display device capability information requests from the client, to the client device can determine said interface what type of data and data rates are provided.
  10. 10. 如权利要求9所述的接口,其特征在于,客户机链路控制器用至少一个显示性能分组将显示或显现性能传送到所述主机链路控制器。 10. The interface according to claim 9, wherein the client link controllers with at least a display performance of packet transmission performance displays or appear to the host link controller.
  11. 11. 如权利要求1所述的接口,其特征在于,所述通信路径包括具有一系列四根或多根导线以及一个屏蔽的电缆。 11. The interface of claim 1, wherein the communication path comprises a series of four or more conductors and a shield of the cable.
  12. 12. 如权利要求1所述的接口,其特征在于,所述驻留在所述主机装置中的至少一个链路控制器包括作为所述通信路径的一部分而运行的USB数据接口。 12. The interface according to claim 1, wherein said at least one link controller residing in said host device comprises a USB data interface as part of the communication path being run.
  13. 13. 如权利要求1所述的接口,其特征在于,所述主机装置包括无线通信装置。 13. The interface of claim 1, wherein said host device comprises a wireless communication device.
  14. 14. 如权利要求1所述的接口,其特征在于,所述主机装置包括其中部署了无线调制解调器的便携式计算机。 14. The interface of claim 1, wherein said host device comprises a portable computer which is deployed wireless modem.
  15. 15. 如权利要求1所述的接口,其特征在于,所述客户机装置包括便携式视频显示器。 15. The interface of claim 1, wherein the client device comprises a portable video display.
  16. 16. 如权利要求15所述的接口,其特征在于,所述便携式视频显示器包括微显示装置。 16. The interface of claim 15, wherein said portable video display comprises a micro-display device.
  17. 17. 如权利要求1所述的接口,其特征在于,所述客户机装置包括便携式音频显现装置。 17. The interface of claim 1, wherein the client device comprises a portable audio presentation device.
  18. 18. 如权利要求1所述的接口,其特征在于,所述主机装置包括将要被传送的多媒体数据存储到所述客户机装置的装置。 18. The interface of claim 1, wherein said host device comprises storing multimedia data to be transferred to said client device.
  19. 19. 如权利要求l所述的接口,其特征在于,所述分组各包括分组长度字段、 一个或多个分组数据字段、以及循环冗余码校验字段。 19. The interface according to claim l, wherein said packets each comprise a packet length field, one or more packet data fields, and a cyclic redundancy check field.
  20. 20. 如权利要求2所述的接口,其特征在于还包括:多种传送模式,各允许在给定时间段上并行传送最大比特数量不同的数据, 每个模式都适合通过所述主机和所述客户机链路控制器之间的协商来选择;以及其中所述传送模式在数据传送期间适合在所述模式之间动态调节。 20. The interface according to claim 2, characterized by further comprising: a plurality of transfer modes, each allowing the transfer of different maximum number of parallel bits of data at a given period of time, each mode by the host and are suitable for the negotiation between said client link controller selects; and wherein said transfer modes are dynamically adjustable between said suitable mode during data transfer.
  21. 21. 如权利要求1所述的接口,其特征在于还包括多个分组,可用于传送从一组关于色图、比特分组传送、位图区域填充、位图图案填充、以及透明色使能类型分组中选择的视频信息。 21. The interface according to claim 1, characterized by further comprising a plurality of packets can be transmitted from a group on a color map, a packet transmitted bits, Bitmap Area Fill, Bitmap Pattern Fill, and Transparent Color Enable type grouping selected video information.
  22. 22. 如权利要求1所述的接口,其特征在于,还包括可由所述主机装置产生的填充符类型分组,用于占据没有数据的前向链路传输期间。 22. The interface according to claim 1, characterized by further comprising Filler type packets generated by said host device, for forward link transmission during the absence of data occupy.
  23. 23. 如权利要求l所述的接口,其特征在于,还包括用户定义的流类型分组, 用于传送接口用户定义的数据。 23. The interface according to claim l, characterized by further comprising User-Defined Stream type packets for transferring interface user defined data.
  24. 24. 如权利要求1所述的接口,其特征在于,还包括键盘数据和指示装置数据类型的分组,用于把数据传送到与所述客户机装置相关的用户输入装置或从所述用户输入装置传送数据。 24. The interface according to claim 1, characterized by further comprising Keyboard Data and Pointing Device Data type packets for transferring data to a user input means associated with the client or from the user input means for transmitting data.
  25. 25. 如权利要求1所述的接口,其特征在于,还包括链路关闭类型分组,用于由所述主机装置传输到所述客户机装置,以终止所述通信路径上各方向上的数据传送。 25. The interface according to claim 1, characterized by further comprising a Link Shutdown type packet for transmission by said host device to said client device, to terminate the data in each direction over said communication path transfer.
  26. 26. —种为了显现给用户而在通信路径上以高速率在主机装置和客户机装置之间传送数字数据的方法,其特征在于包括:产生一个或多个预定义的分组结构并且将它们链接在一起以形成预定义的通信协议;用所述通信协议在所述通信路径上的所述主机装置和所述客户机装置之间传送一组预先选择的数字控制和显现数据;将驻留在所述主机装置中的至少一个主机链路控制器通过所述通信路径耦合到所述客户机装置,主机链路控制器用于产生、发送和接收形成所述通信协议的分组,并且将数字显现数据组成一种或多种类型的数据分组;以及用所述链路控制器在所述通信路径上以分组形式传送数据。 26. - species to be presented to the user on a communication path to the high-rate transmitting method of digital data between a host device and a client device, comprising: generating a packet or more predefined structure and link them together to form a pre-defined communication protocol; transmitting a set of digital control and presentation data between preselected by the communication protocol of the host device on the communication path and said client device; will reside in the host device is coupled to the at least one host link controller through said communications path to said client device, the host link controller for generating a packet of the communication protocol for transmitting and receiving are formed, and to form digital presentation data the composition of one or more types of data packets; and transmitting data in the form of packets over said communication path using said link controllers.
  27. 27. 如权利要求26所述的方法,其特征在于还包括,为了在所述主机装置和客户机装置之间的通信在媒体帧内将所述分组组合在一起,媒体帧具有预定义的固定长度,其中预定数量的所述分组具有不同且可变的长度。 27. The method according to claim 26, characterized by further comprising, for communication between the host device and a client device in a media frame the combined packet, the media frames having a predefined fixed length, wherein said predetermined number of packets having different variable lengths and.
  28. 28. 如权利要求26所述的方法,其特征在于还包括,以子帧报头类型分组开始传送来自所述主机装置的分组。 28. The method according to claim 26, characterized by further comprising, in a Sub-frame Header type packet start transmitting packets from said host device.
  29. 29. 如权利要求26所述的方法,其特征在于还包括,在所述通信路径上在所述主机装置和客户机装置之间双向传送数据。 29. The method according to claim 26, characterized by further comprising bidirectional data transfer between the host device and a client device over said communication path.
  30. 30. 如权利要求26所述的方法,其特征在于还包括,驻留在所述客户机装置内的至少一个客户机链路控制器,所述客户机装置通过所述通信路径与所述主机装置耦合,用于产生、发送、并接收形成所述通信协议的分组,并且将数字显现数据组成一种或多种类型的数据分组。 30. The method according to claim 26, characterized by further comprising, residing within the client device, at least one client link controller, said client device through said communications path with said host coupling means, for generating, transmitting, and receiving packets forming said communications protocol, and to form digital presentation data composed of one or more types of data packets.
  31. 31. 如权利要求30所述的方法,其特征在于,所述主机链路控制器包括一个或多个差分线路驱动器;且所述客户机链路控制器包括与所述通信路径耦合的一个或多个差分线接收器。 31. A method according to claim 30, wherein said host link controller comprises one or more differential line drivers; and said client link controller comprises one coupling to said communication path or a plurality of differential line receivers.
  32. 32. 如权利要求26所述的方法,其特征在于还包括,为了显现给客户机装置用户,用一个或多个视频类型数据的视频流类型分组、以及音频类型数据的音频流类型分组将数据从所述主机装置传送到所述客户机装置。 32. The method according to claim 26, characterized by further comprising, in order to show to the client device user, the type of video stream, an audio stream type packets with one or more types of data of video, audio and data types of data packets transmitting from said host device to said client device.
  33. 33. 如权利要求26所述的方法,其特征在于还包括,用一个或多个反向链路封装类型分组将数据从所述客户机装置传送到所述主机装置。 33. The method according to claim 26, characterized by further comprising a reverse link encapsulation packet with one or more types to transfer data from the client device to the host device.
  34. 34. 如权利要求26所述的方法,其特征在于还包括,由主机链路控制器请求来自所述客户机装置的显示性能信息,以便确定所述客户机装置能通过所述接口提供何种类型的数据和数据速率。 34. The method according to claim 26, characterized by further comprising, by a host link controller requests display performance information from the client device to determine the client device through said interface which provides type of data and data rates.
  35. 35. 如权利要求34所述的方法,其特征在于还包括,用至少一个显示性能类型分组将显示或显现性能从客户机链路控制器传送到所述主机链路控制器。 35. The method according to claim 34, characterized by further comprising, with at least a display performance of the display or show the type of performance to packet transferred from the client link controller to said host link controller.
  36. 36. 如权利要求26所述的方法,其特征在于,所述通信路径包括具有一系列四根或多根导线以及一个屏蔽的电缆。 36. The method according to claim 26, wherein the communication path comprises a series of four or more conductors and a shield of the cable.
  37. 37. 如权利要求26所述的方法,其特征在于还包括,由各所述链路控制器作为所述通信路径的一部分而运行USB数据接口。 37. The method according to claim 26, characterized by further comprising, while operating the USB data interface by each of said link controllers as a part of the communication path.
  38. 38. 如权利要求26所述的方法,其特征在于,所述主机装置包括无线通信装置。 38. The method according to claim 26, wherein said host device comprises a wireless communication device.
  39. 39. 如权利要求26所述的方法,其特征在于,所述主机装置包括其中部署了无线调制解调器的便携式计算机。 39. The method according to claim 26, wherein said host device comprises a portable computer which is deployed wireless modem.
  40. 40. 如权利要求26所述的方法,其特征在于,所述客户机装置包括便携式视频显示器。 40. The method according to claim 26, wherein the client device comprises a portable video display.
  41. 41.如权利要求40所述的方法,其特征在于,所述便携式视频显示器包括微显示装置。 41. The method according to claim 40, wherein said portable video display comprises a micro-display device.
  42. 42. 如权利要求26所述的方法,其特征在于,所述客户机装置包括便携式音频显现系统。 42. The method according to claim 26, wherein the client device comprises a portable audio system appear.
  43. 43. 如权利要求26所述的方法,其特征在于还包括,将要被传送到所述客户机装置的多媒体数据存储在所述主机装置处。 43. The method according to claim 26, characterized by further comprising, means to be transmitted to the host at the multimedia data stored in the client device.
  44. 44. 如权利要求26所述的方法,其特征在于,所述分组各包括分组长度字段、 一个或多个分组数据字段、以及循环冗余码校验字段。 44. The method according to claim 26, wherein said packets each comprise a packet length field, one or more packet data fields, and a cyclic redundancy check field.
  45. 45. 如权利要求27所述的方法,其特征在于还包括:在所述主机和客户机链路控制器之间协商在各方向上使用多种传送模式之一,各允许在给定时间段上并行传送最大比特数量不同的数据;以及在数据传送期间在所述传送模式之间动态地调节。 45. The method according to claim 27, characterized by further comprising: a plurality of transfer modes negotiate the use of one of the parties in the direction between said host and client link controllers, each in a given period of time to allow the parallel transfer of different maximum number of data bits; during the data transfer and dynamically adjusting between said transfer modes.
  46. 46. 如权利要求26所述的方法,其特征在于还包括,用一个或多个分组来传送从关于色图、比特分组传送、位图区域填充、位图图案填充、以及透明色使能类型分组的一组中选择的视频信息。 46. ​​The method according to claim 26, characterized by further comprising, with one or more packets to transmit on the color chart, packet transmission bits, Bitmap Area Fill, Bitmap Pattern Fill, and Transparent Color Enable type a group of video information packets selected.
  47. 47. 如权利要求26所述的方法,其特征在于还包括,由所述主机装置产生填充符类型分组以占据没有数据的前向链路传输期间。 47. The method according to claim 26, characterized by further comprising generating means by the host Filler type packets during a forward link transmission to occupy the absence of data.
  48. 48. 如权利要求26所述的方法,其特征在于还包括,用用户定义的流类型数据传送接口用户定义的数据。 48. The method according to claim 26, characterized by further comprising, stream type data transfer interface with a user-defined user-defined data.
  49. 49. 如权利要求26所述的方法,其特征在于还包括,用键盘数据和指示装置数据类型分组把数据传送到与所述客户机装置相关的用户输入装置或从其传送数据。 49. The method according to claim 26, characterized by further comprising a keyboard and a pointing device data packet is a data type to transfer data to the client device associated with a user input device or transmitting data therefrom.
  50. 50. 如权利要求26所述的方法,其特征在于还包括,用由所述主机装置到所述客户机装置传输的链路关闭类型分组在所述通信路径上终止任一方向上的数据传送。 50. The method according to claim 26, characterized by further comprising a means for transmitting from said host device to said client to terminate the Link Shutdown type packet data transfer in either direction over said communication path.
  51. 51. —种为了显现给用户而在通信路径上以高速率在主机装置和客户机装置之间传送数字数据的装置,其特征在于包括-所述主机装置内部署的至少一个主机链路控制器,产生一个或多个预定义的分组结构并且将它们链接在一起以形成预定义的通信协议,以及用所述通信协议在所述通信路径上的所述主机装置和所述客户机装置之间传送一组预先选择的数字控制和显现数据;至少一个客户机控制器,部署在所述客户机装置内并且通过所述通信路径与所述主机链路控制器耦合;以及各链路控制器用于产生、发送和接收形成所述通信协议的分组,并且将数字显现数据组成一种或多种类型的数据分组。 51. - species to be presented to the user on a communication path in a digital data transmission apparatus of a high rate between a host device and a client device, comprising - at least one host link controller to said host device deployment generating a packet or more predefined structure and link them together to form a predefined communication protocol and the communication protocol with the host device and the client device on the communication path between transmitting a set of digital control and presentation data preselected; at least one client controller disposed within said client device through said communications path and a controller coupled to said host link; and for each link controller packet generation, transmission and reception of forming said communications protocol, and to form digital presentation data composed of one or more types of data packets.
  52. 52. 如权利要求51所述的装置,其特征在于,所述至少一个主机链路控制器包括状态机。 52. The apparatus according to claim 51, wherein said at least one host link controller comprises a state machine.
  53. 53. 如权利要求51所述的装置,其特征在于,所述至少一个主机链路控制器包括通用信号处理器。 53. The apparatus according to claim 51, wherein said at least one host link controller comprises a general purpose signal processor.
  54. 54. 如权利要求51所述的装置,其特征在于,所述分组在媒体帧内被组合在一起用于所述主机装置和客户机装置之间的通信,媒体帧具有预定义的固定长度, 其中预定数量的所述分组具有不同且可变的长度。 54. The apparatus according to claim 51, wherein said packets are combined together in the media frames for communication between said host device and a client device, the media frames having a predefined fixed length, wherein a predetermined number of said packets have differing and variable lengths.
  55. 55. 如权利要求51所述的装置,其特征在于还包括,在开始从所述主机装置传送分组时的子帧报头类型分组。 55. The apparatus according to claim 51, characterized by further comprising, at the beginning of the subframe Header type packet at the packet transmitted from the host apparatus.
  56. 56. 如权利要求51所述的装置,其特征在于,所述至少一个主机链路控制器用于在所述通信路径上的所述主机装置和客户机装置之间双向传送数据。 56. The apparatus according to claim 51, wherein said at least one host link controller for bidirectional transmission of data between the host device on the communication path and a client device.
  57. 57.如权利要求51所述的装置,其特征在于,所述客户机控制器包括与所述客户机装置耦合的客户机接收机。 57. The apparatus according to claim 51, wherein said client controller comprises a client device coupled to said client receiver.
  58. 58. 如权利要求57所述的装置,其特征在于,所述至少一个主机链路控制器包括一个或多个差分线路驱动器;所述客户机接收机包括与所述通信路径耦合的一个或多个差分线接收机。 58. The apparatus according to claim 57, wherein said at least one host link controller comprises one or more differential line drivers; said client receiver comprises one or more of the communication path coupled differential line receiver.
  59. 59. 如权利要求51所述的装置,其特征在于还包括视频类型数据的视频流类型分组,以及当将数据从所述主机装置传送到所述客户机装置来显现给客户机装置用户所用的音频类型的音频流类型分组。 59. The apparatus according to claim 51, characterized by further comprising Video Stream type packets of video type data, and when the data transfer from the host device to the client device to appear to the client device used by the user audio stream type packets for audio type.
  60. 60. 如权利要求51所述的装置,其特征在于还包括一个或多个反向链路封装类型分组,用于将数据从所述客户机装置传送到所述主机装置。 60. The apparatus according to claim 51, characterized by further comprising one or more Reverse Link Encapsulation type packets for transferring data from the client device to the host device.
  61. 61. 如权利要求51所述的装置,其特征在于,所述主机链路控制器用于从客户机装置请求显示性能信息,以便确定所述客户机装置能够提供何种类型的数据和数据速率。 61. The apparatus according to claim 51, wherein said host link controller means for displaying the performance information requests from the client to determine what type of data and data rates said client device can be provided.
  62. 62. 如权利要求61所述的装置,其特征在于还包括至少一个显示性能类型分组,用于将显示或显现性能从客户机链路控制器传送到所述主机链路控制器。 62. The apparatus according to claim 61, characterized by further comprising at least a display performance type packet for communicating display or transferred from the client appear performance link controller to said host link controller.
  63. 63. 如权利要求51所述的装置,其特征在于,所述通信路径包括具有一系列四根或多根导线以及一个屏蔽的电缆。 63. The apparatus according to claim 51, wherein the communication path comprises a series of four or more conductors and a shield of the cable.
  64. 64. 如权利要求63所述的装置,其特征在于,所述电缆包括六根导线和一个屏蔽° 64. The apparatus according to claim 63, wherein said cable comprises six conductors and a shield °
  65. 65. 如权利要求63所述的装置,其特征在于,所述电缆包括八根导线和一个屏蔽。 65. The apparatus according to claim 63, wherein said cable comprises eight conductors and a shield.
  66. 66. 如权利要求63所述的装置,其特征在于,所述通信路径包括由4根导线、 一个USB类型接口、以及一个屏蔽组成的电缆。 66. The apparatus as claimed in claim 63, wherein the communication path comprises four conductors, a USB type interface, and a cable shield composition.
  67. 67. 如权利要求63所述的装置,其特征在于,所述电缆导线各包括多股线以及一个屏蔽,所述多股线的阻抗为每一千英尺长度约110欧姆、信号传播速度约为0. 66c、通过电缆的最大延时小于8. 0纳秒。 67. The apparatus according to claim 63, wherein said cable conductors each comprise a plurality of strands and a shield, the impedance of said plurality of strands per one thousand feet length of about 110 ohms, the signal propagation speed is about 0. 66c, the maximum delay through the cable less than 8.0 nanoseconds.
  68. 68. 如权利要求51所述的装置,其特征在于,所述主机装置包括无线通信装置。 68. The apparatus according to claim 51, wherein said host device comprises a wireless communication device.
  69. 69. 如权利要求51所述的装置,其特征在于,所述主机装置包括其中部署了无线调制解调器的便携式计算机。 69. The apparatus according to claim 51, wherein said host device comprises a portable computer which is deployed wireless modem.
  70. 70. 如权利要求51所述的装置,其特征在于,所述客户机装置包括便携式视频显示器。 70. The apparatus according to claim 51, wherein the client device comprises a portable video display.
  71. 71. 如权利要求70所述的装置,其特征在于,所述便携式视频显示器包括微显示装置。 71. The apparatus according to claim 70, wherein said portable video display comprises a micro-display device.
  72. 72. 如权利要求51所述的装置,其特征在于,所述客户机装置包括便携式音频显现系统。 72. The apparatus according to claim 51, wherein the client device comprises a portable audio system appear.
  73. 73. 如权利要求51所述的装置,其特征在于还包括数据存储器,用于保持将由所述主机装置传送到所述客户机装置的多媒体数据。 73. The apparatus according to claim 51, characterized by further comprising a data memory for holding said host device by transmitting multimedia data to the client device.
  74. 74. 如权利要求51所述的装置,其特征在于,所述分组各包括一个分组长度字段、 一个或多个分组数据字段、以及一个循环冗余码校验字段。 74. The apparatus according to claim 51, wherein said packets each comprise a packet length field, one or more packet data fields, and a cyclic redundancy check field.
  75. 75. 如权利要求51所述的装置,其特征在于,所述主机链路控制器和所述至少一个客户机控制器用于在各方向使用多个传送模式之一,各允许在给定时间段上并行传送最大比特数不同的数据;并且能在数据传送期间在所述传送模式之间被动态调节。 75. The apparatus according to claim 51, wherein said host link controller and the at least one client controller using one of a plurality of transfer modes in each direction, each allowing a given time period the parallel transfer of different maximum number of bits of data; and can be dynamically adjusting between said transfer modes during transfer of data.
  76. 76. 如权利要求51所述的装置,其特征在于还包括多个用于传送视频信息的分组的一个或多个,视频信息从一组关于色图、比特分组传输、位图区域填充、位图图案填充、以及透明色使能类型分组中选出。 76. The apparatus according to claim 51, characterized by further comprising a plurality of one or more packets for transmitting video information, the video information group on a color chart, the transmission bit blocks, Bitmap Area Fill, Bitmap FIG pattern fill, and transparent color enable type packets selected.
  77. 77. 如权利要求51所述的装置,其特征在于还包括填充符类型分组,用于由所述主机装置传送以占据不具有数据的前向链路传输期间。 77. The apparatus according to claim 51, characterized by further comprising Filler type packets for transfer by said host device does not have to occupy the front during the forward link data transmissions.
  78. 78. 如权利要求51所述的装置,其特征在于还包括键盘数据和指示装置数据类型分组,用于将数据传送到与所述客户机装置相关的用户输入装置或从其传送数据。 78. The apparatus according to claim 51, characterized by further comprising Keyboard Data and Pointing Device Data type packets for transferring data to a client device associated with the user input device or transmitting data therefrom.
  79. 79. 如权利要求51所述的装置,其特征在于,所述主机控制器用于将链路关闭类型分组发送到所述客户机装置,从而终止在所述通信路径上任一方向上的数据传送。 79. The apparatus according to claim 51, wherein the host controller sends a Link Shutdown type packet for transmission to the client device to terminate the data transfer in one direction the incoming communication path.
  80. 80. —种为了显现给用户而在通信路径上的主机装置和客户机装置之间以高速率传送数字数据的装置,其特征在于包括:产生一个或多个预定义的分组结构、并且将它们链接在一起以形成预定义通信协议的装置;用所述通信协议在所述通信路径上的所述主机装置和所述客户机装置间传送一组预先选定的数字控制和显现数据的装置;通过所述通信路径将至少两个链路控制器耦合在一起的装置,每个都在所述主机装置和客户机装置中的一个之内,各用于产生、发送并接收形成所述通信协议的分组,并且将数字显现数据组成一种或多种类型的数据分组;以及用所述链路控制器在所述通信路径上以分组形式传送数据的装置。 80. - species to be presented to the user apparatus between a host device and a client device over a communication path to transmit high rate digital data, comprising: generating one or more packets of a predefined structure, and they apparatus linked together to form a predefined communication protocol; with the communication protocol between the host device on the communication path, and the client device transmits a preselected set of digital control and data show apparatus; said communication path by means of at least two link controllers coupled together, each of said host device and a client device in one of each for generating, transmitting and receiving said communication protocol forming packets, and to form digital presentation data composed of one or more types of data packets; and means for using said data link controller in the form of packets transmitted over said communication path.
  81. 81. 如权利要求80所述的装置,其特征在于还包括,在用于所述主机装置和客户机装置间通信的媒体帧内将所述分组组合在一起的装置,该媒体帧具有预定义的固定长度,其中预定数量的所述分组具有不同且可变的长度。 81. The apparatus according to claim 80, characterized by further comprising, for frames in the media between the host device and a client device in communication with said packet assembly means of the media frames having a predefined fixed length, wherein said predetermined number of packets having different variable lengths and.
  82. 82.如权利要求80所述的装置,其特征在于还包括,从子帧报头类型分组开始来自所述主机装置的分组传送的装置。 82. The apparatus according to claim 80, characterized by further comprising, starting from the Sub-frame Header type packet means a packet transmitted from the host apparatus the.
  83. 83. 如权利要求80所述的装置,其特征在于还包括,用于在所述通信路径上的所述主机装置和客户机装置之间双向传送数据的装置。 83. The apparatus according to claim 80, characterized by further comprising, on the communication path for the host apparatus bidirectional transfer of data between the device and the client device.
  84. 84. 如权利要求80所述的装置,其特征在于, 一个链路控制器包括与所述主机装置耦合的主机控制器,第二链路控制器包括与所述客户机装置耦合的客户机接收机。 84. The apparatus according to claim 80, wherein one link controller comprises a host device coupled to said host controller, the second link controller comprises a client and the receiving client device coupled machine.
  85. 85. 如权利要求84所述的装置,其特征在于,所述主机控制器包括一个或多个差分线路驱动器;而所述客户机接收机包括与所述通信路径耦合的一个或多个差分线接收机。 85. The apparatus according to claim 84, wherein said host controller comprises one or more differential line drivers; and said client receiver comprises one or more differential line and the communication path coupled receiver.
  86. 86. 如权利要求80所述的装置,其特征在于还包括,用一个或多个视频类型数据的视频流类型分组以及音频类型数据的音频流类型分组将数据从所述主机装置传送到所述客户机装置来显现给用户的装置。 86. The apparatus according to claim 80, characterized by further comprising an audio stream type of video stream packet with one or more types of video type data and audio type data, of packets of data transferred from the host device to the It means to a user to visualize the client device.
  87. 87. 如权利要求80所述的装置,其特征在于还包括,用一个或多个反向链路封装类型分组将数据从所述客户机装置传送到所述主机装置的装置。 87. The apparatus according to claim 80, characterized by further comprising, Reverse Link Encapsulation type packets with one or more devices of the host device to transmit data from the client device to.
  88. 88. 如权利要求80所述的装置,其特征在于还包括,由所述链路控制器从客户机装置请求显示性能信息的装置,以便确定所述客户机装置能提供何种类型的数据和数据速率。 88. The apparatus according to claim 80, characterized by further comprising means performance information by the link controller requests from the client display device, the client device so as to determine what type of data can be provided and data rate.
  89. 89. 如权利要求88所述的装置,其特征在于还包括,用至少一个显示性能类型分组将显示或显现性能从一客户机链路控制器传送到所述链路控制器的装置。 89. The apparatus according to claim 88, characterized by further comprising, with at least a display performance of the display device is the type of performance packet transmitted from a client link controller to the link controller appears.
  90. 90. 如权利要求80所述的装置,其特征在于,所述通信路径包括带有一系列四根或多根导线以及一个屏蔽的电缆。 90. The apparatus according to claim 80, characterized in that, with the communication path comprises a series of four or more conductors and a shield of the cable.
  91. 91.如权利要求80所述的装置,其特征在于还包括,由各所述链路控制器操作作为所述通信路径一部分的USB数据接口的装置。 91. The apparatus according to claim 80, characterized by further comprising, by the operation of the link controller device USB interface data as part of said communication path.
  92. 92. 如权利要求80所述的装置,其特征在于,所述主机装置包括无线通信装置。 92. The apparatus according to claim 80, wherein said host device comprises a wireless communication device.
  93. 93. 如权利要求80所述的装置,其特征在于,所述主机装置包括其中部署了无线调制解调器的便携式计算机。 93. The apparatus according to claim 80, wherein said host device comprises a portable computer which is deployed wireless modem.
  94. 94. 如权利要求80所述的装置,其特征在于,所述客户机装置包括便携式视频显示器。 94. The apparatus according to claim 80, wherein the client device comprises a portable video display.
  95. 95. 如权利要求94所述的装置,其特征在于,所述便携式视频显示器包括微显示装置。 95. The apparatus according to claim 94, wherein said portable video display comprises a micro-display device.
  96. 96. 如权利要求80所述的装置,其特征在于,所述客户机装置包括便携式音频显现系统。 96. The apparatus according to claim 80, wherein the client device comprises a portable audio system appear.
  97. 97. 如权利要求80所述的装置,其特征在于还包括,用于将要被传送到所述客户机装置的多媒体数据存储在所述主机装置处的装置。 97. The apparatus according to claim 80, characterized by further comprising means for storing multimedia data in said client device at said host device to be transmitted to.
  98. 98. 如权利要求80所述的装置,其特征在于,所述分组各包括一个分组长度字段、 一个或多个分组数据字段、以及一个循环冗余码校验字段。 98. The apparatus according to claim 80, wherein said packets each comprise a packet length field, one or more packet data fields, and a cyclic redundancy check field.
  99. 99. 如权利要求81所述的装置,其特征在于还包括:在所述主机和客户机链路控制器之间协商各方向上使用的多种传送模式之一的装置,各允许在给定时间段上并行传送最大比特数量不同的数据;以及在数据传送期间在所述传送模式间动态调节的装置。 99. The apparatus according to claim 81, characterized by further comprising: means for transmitting one of a plurality of parties using the up mode of negotiation between said host and client link controllers, each allowing a given the parallel transfer of different maximum number of bits of data over a time period; and means for dynamically adjusting during data transfer between said transfer modes.
  100. 100. 如权利要求80所述的装置,其特征在于还包括,用多个分组的一个或多个传送视频信息的装置,视频信息从一组色图、比特分组传输、位图区域填充、 位图图案填充、以及透明色使能类型分组中选出。 100. The apparatus according to claim 80, characterized by further comprising, means more than one packet or a plurality of transmission of video information with video information from a set of color charts, bit packet transmission, Bitmap Area Fill, Bitmap FIG pattern fill, and transparent color enable type packets selected.
  101. 101. 如权利要求80所述的装置,其特征在于还包括,由所述主机装置产生填充符类型分组以占据不具有数据的前向链路传输期间的装置。 101. The apparatus according to claim 80, characterized by further comprising generating means by said host to occupy Filler type packets during a forward link transmission apparatus before the data does not have.
  102. 102. 如权利要求80所述的装置,其特征在于还包括,用用户定义的流类型分组传送接口用户定义的数据的装置。 102. The apparatus according to claim 80, characterized by further comprising, with a user defined stream type of device interface user defined data packet transmission.
  103. 103. 如权利要求80所述的装置,其特征在于还包括,用键盘数据和指示装置数据类型分组把数据传送到与所述客户机装置相关的用户输入设备、以及从其传送数据的装置。 103. The apparatus according to claim 80, characterized by further comprising means transmits the packet data type and data indicating keyboard data to a client device associated with the user input device, and means for transmitting data therefrom.
  104. 104. 如权利要求80所述的装置,其特征在于还包括,用由所述主机装置到所述客户机装置传输的链路关闭类型分组终止所述通信路径上任一方向上的数据传送。 104. The apparatus according to claim 80, characterized by further comprising, by the host device with the client device transmits a Link Shutdown type packet to said communication path termination office data transfer in either direction.
  105. 105. —种用在电子系统中的处理器,用于在通信路径上的主机装置和客户机装置间以高速率传送数字数据,该处理器用于产生一个或多个预定义的分组结构, 并且将它们链接在一起以形成预定义的通信协议;将数字显现数据组成一种或多种类型的数据分组;用所述通信协议在所述通信路径上的所述主机装置和所述客户机装置之间传送一组预先选定的数字控制和显现数据;以及在所述通信路径上以分组形式传送数据。 105. - a kind of a processor in an electronic system for transferring digital data at a high rate between a host device and a client device over a communication path, the processor for generating one or more pre-defined packet structures and they are linked together to form a predefined communication protocol; digital presentation data composed of one or more types of data packets; with the communication protocol of the host device and the client device on the communication path, transmitting a pre-selected set of digital control and presentation data between; and transmitting data in the form of packets over said communication path.
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