WO2010075686A1 - 可实现功能扩展的电视机 - Google Patents

可实现功能扩展的电视机 Download PDF

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Publication number
WO2010075686A1
WO2010075686A1 PCT/CN2009/073192 CN2009073192W WO2010075686A1 WO 2010075686 A1 WO2010075686 A1 WO 2010075686A1 CN 2009073192 W CN2009073192 W CN 2009073192W WO 2010075686 A1 WO2010075686 A1 WO 2010075686A1
Authority
WO
WIPO (PCT)
Prior art keywords
television
function expansion
interface
connection end
signal terminal
Prior art date
Application number
PCT/CN2009/073192
Other languages
English (en)
French (fr)
Inventor
翟翌立
胡希嘉
刘超
陈宜龙
邱彦强
张明
郭建伟
高希娟
陈龙
王超
李泉勇
Original Assignee
海尔集团公司
青岛海尔电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海尔集团公司, 青岛海尔电子有限公司 filed Critical 海尔集团公司
Priority to CA2749515A priority Critical patent/CA2749515C/en
Priority to US13/142,585 priority patent/US20110273616A1/en
Priority to EP09835973A priority patent/EP2375730A4/en
Publication of WO2010075686A1 publication Critical patent/WO2010075686A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4183—External card to be used in combination with the client device, e.g. for conditional access providing its own processing capabilities, e.g. external module for video decoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet

Definitions

  • the present invention relates to a television set capable of extending functions, which can realize different functions by a television function expansion component, and the television function expansion component can be detachably mounted to the inside of the television set.
  • each device requires power, each device requires a remote control, each product has a number of output terminals of different colors and different colors, so that The external connection is complicated, it is extremely inconvenient to install and use, and it takes up space. When using different equipment, it is necessary to reconnect the thread. At the same time, multiple remote controls are inconvenient to save and operate. When a user adds a new device, it must be a complete machine, so the user's comprehensive use cost is high, and the output of each device is not standardized, and the interface and performance of similar products are greatly different.
  • the invention patent No. 200420109717.1 discloses a television digital video disc playing integrated machine, which can realize the digital video disc DVD playing function built in the television, so that the television can watch both the television program and the digital video.
  • Disc DVD discloses a recordable IP TV integrated machine which incorporates an IP TV set top box into a liquid crystal television.
  • the present invention provides a television set including a television core subsystem, a television function expansion component, and a gold finger connector.
  • the TV core subsystem is placed inside the TV and receives audio/video signals in different formats.
  • the TV function expansion kit is used to provide different function options.
  • the gold finger connector is electrically connected between the television core subsystem and the television function expansion component.
  • the gold finger connector includes a first connection end and a second connection end. The first connection end is disposed on the television function expansion component, and the first connection end includes a first power signal terminal, a first communication signal terminal, and a first audio/video signal terminal.
  • the second connection end is electrically connected to the TV core subsystem, and the second connection end comprises a second power signal terminal, a second communication signal terminal and a second audio/video signal terminal, respectively, for the first power source corresponding to the first connection end
  • the signal terminal, the first communication signal terminal and the first audio/video signal terminal are electrically connected.
  • the television provided by the invention adopts a modular design by fully considering the diversity of the digital signal source and exerting the best display effect of the digital television and the future expansion capability of the system, and the television includes the TV function expansion component and the golden finger connection.
  • the TV function expansion component is convenient to connect and flexible, so that the digital television source display standard can be fully embodied, and different types of digital television can be viewed.
  • Sources such as digital broadcast sources, digital broadcast sources, and digital network sources, can also complete the transition from analog TV to digital TV at this stage, and enable many functions such as chasing time recording, learning entertainment, and network downloading to upgrade or add new functions. .
  • TV function expansion component function modules that conform to standardized interfaces. That is, the combination of the TV function expansion component of the different function modules and the TV set can be provided at a low and flexible cost, and at the same time, it can be used alone. Due to the flexible configuration of the "modular", it also extends the consumption field of the products. New technologies and new products can be applied to the system by adding newly developed modules.
  • FIG. 1 is a schematic view showing a receiving device of a conventional television set
  • FIG. 2 is a block diagram showing the system of the television set provided by the present invention.
  • FIG. 3 is a circuit block diagram showing a television set provided by the present invention.
  • FIG. 4 is a circuit block diagram showing a function expansion module provided by the present invention.
  • FIG. 5 exemplifies a flow chart of a control method of a television set provided by the present invention.
  • FIG. 2 is a block diagram showing the system of a television set according to the present invention.
  • the television set 30 of the present invention includes a television core subsystem 31, a television function expansion assembly 32, and a gold finger connector 33 coupled therebetween.
  • a socket (not shown) is provided on the television 30, and the socket corresponds to the gold finger connector 33 for mounting the television function expansion unit 32.
  • the television core subsystem 31 is a main board of the television set 30, which is disposed inside the television set 30, and can receive audio/video signals of different formats through various external interfaces of the television set 30, and these signals may be analog signals or may be Digital signal. These signals include receiving radio frequency signals (Radio Frequency, RF), composite video broadcast signals (CVBS), luminance/chrominance signals (Y/C), color difference signals (Y/Pb/Pr), VGA (Video). Graphics Array ) signals, DVI (Digital Visual Interface) signals, HDMI (High Definition Multimedia Interface) signals, and other existing audio/video signals. The audio/video signals are processed and output to the display panel and audio equipment of the television.
  • TV core subsystem 31 The gold finger connector 33 can be used in conjunction with various types of television function expansion components 32.
  • the television function expansion component 32 can extend the functionality of the television set 30 through electrical connection and data communication between the gold finger connector 33 and the television core subsystem 31.
  • the television function expansion unit 32 has a uniform appearance size and a uniform interface definition, can be used with the television core subsystem 31, and can be mounted or detached from the television set 30 via the gold finger connector 33.
  • the TV function expansion component 32 includes module circuits of different functions, and the functions implemented are also different.
  • the television function expansion component 32 is embodied in the form of an expansion card, and other manifestations of the television function expansion component 32, such as an expansion box, etc., can be clarified by those skilled in the art based on the disclosure of the present invention.
  • the TV function expansion component 32 of the present invention may be, but not limited to, a component of the following form: a time-trackable recordable expansion card capable of playing high-definition video and recording, a learning entertainment expansion card capable of learning English and playing games, and can be used in place of a set-top box.
  • a digital TV extension card for digital signals a network download expansion card that can download movies online, and so on.
  • the television set 30 supporting the television function expansion unit 32 can realize different functions by replacing the television function expansion unit 32 of different functions.
  • the gold finger connector 33 includes a plug terminal and a socket port (not shown).
  • the patch terminal is disposed on the television function expansion unit 32.
  • the socket is disposed in the socket of the television set 30, and is electrically connected to the television movement subsystem 31, and the socket terminal fixedly disposed on the television function expansion component 32 can be installed.
  • the patch terminal includes a first power signal terminal, a first control signal terminal, and a first audio/video signal terminal.
  • the socket port includes a second power signal terminal, a second control signal terminal and a second audio/video signal terminal, respectively for the first power signal terminal, the first control signal terminal and the first audio corresponding to the patch terminal / Video signal terminals are electrically connected.
  • the positional relationship between the patch terminal and the socket slot can also be interchanged, that is, the socket slot is disposed on the television function expansion component 32.
  • the patch terminal is disposed in the jack of the television set 30 and is electrically connected to the television core subsystem 31.
  • the corresponding gold finger connector 33 has a uniform specification of the connector terminal and the socket port, and the specifications herein refer not only to the power of the connector terminal and the socket port.
  • the arrangement of the signals is the same, and the size specifications on the physical dimensions are uniform.
  • the signal transmitted by the gold finger connector 33 of the present invention includes at least a power signal, a communication and control signal, and an audio/video signal. Since the signal transmitted by the golden finger connector 33 of the present invention includes a power signal, the television 30 can be powered by the power supply signal to the television function expansion component 32, while the communication function and the control signal are used in the television function expansion component 32.
  • a control information contact mechanism is established between the television sets 30 for coordinated operation to transmit audio/video signals between the television core subsystem 31 and the television function expansion component 32.
  • the gold finger connector 33 of the present invention regulates the power supply signal, the communication and control signals, and the audio/video signal output standard by using the unified terminal and the socket port, and also regulates the expansion interface of the television 30.
  • the physical size is such that the television function expansion unit 32 is connected and fixed to the gold finger connector 33 in a plugged form.
  • the television function expansion component 32 adopts a modular design, that is, the golden finger connector 33.
  • the standardization of design conforms to the modularization of the TV function expansion component 32, which makes the product connection convenient and flexible, so that it can fully reflect the digital TV source display standard, and can also watch different types of digital TV sources, such as digital broadcast sources and numbers. Play source and digital network source, etc., can also complete the transition from analog TV to digital TV at the present stage, and realize many functions such as chasing time recording, learning entertainment, network downloading, etc., or adding new functions.
  • the TV function expansion component 32 of the standardized interface can be used as a functional module, thereby providing a combination of the TV function expansion component 32 of different functional modules and the television set 30 at a low and flexible cost, while supporting stand-alone use. Due to the flexible configuration of the "modular", it also extends the consumption field of the products. New technologies and new products can be applied to the system by adding newly developed modules and adding them to the system.
  • FIG. 3 is a circuit block diagram showing a television set provided by the present invention.
  • the television function expansion component may be, but not limited to, an expansion card, which is an embodiment of the present invention. Composition chart.
  • the television set 40 of the present invention includes a television core subsystem 41, an expansion card 42, a gold finger connector 43 connected between the television core subsystem 41 and the expansion card 42, a power module 44, and an LCD. (Liquid Crystal Display, LCD panel) Panel 45.
  • the power module 44 is electrically connected to the TV core subsystem 41 and the LCD panel 45 to provide an operating voltage, and provides an operating voltage to the expansion card 42 via the gold finger connector 43, and the power module 44 can also be integrated into the TV core subsystem. 41 inside.
  • the television core subsystem 41 is a main board of the television set 40 that is disposed inside the television set 40. It includes functional modules such as a TV core module 411, an audio output 412, and a memory 413.
  • the TV core module 411 includes a microprocessor, a graphics processor, a video processing unit, an audio processing unit, a demodulator, a decoder, a data communication bus, an I/O (Input/Output) interface, and the like. Functional unit. It can pass different audio/video signals of various formats through the various external interfaces of the television 40, and these signals can be analog signals or digital signals. As shown in FIG. 3, these signals may include audio/video analog signals or digital signals such as CVBS signals, Y/C signals, Y/Pb/Pr signals, DVI signals, HDMI signals, TV signals, and VGA signals.
  • the TV core module 411 is connected and communicated with an external device through a peripheral I/O interface, and the communication can be performed by a General Purpose IO Interface (GPIO), Pulse Width Modulation (PWM), and Universal Asynchronous. Transceiver (Universal Asynchronous Receiver/Transmitter, UART), infrared (Infrared, IR) and other methods.
  • the television core module 411 processes the received signals of different formats, converts the video signals into LVDS signals (low voltage differential signaling) and outputs them to the LCD panel 45 to display images, and outputs the audio signals to the Audio output 412 to produce sound.
  • LVDS signals low voltage differential signaling
  • the audio output 412 is used to convert an audio signal in the form of an electrical signal into a sound signal in the form of an air vibration, which may be a device such as a speaker or a speaker.
  • the memory 413 functions as a storage data unit of the television core module 411 and can store audio/video signal data as well as communication and control signal data. It includes dynamic memory 4131 and static memory 4132.
  • the static memory 4132 is a fixed-distributed memory, and is generally used to store global variables or pre-compiled data, instructions, etc., which may be flash memory.
  • the dynamic memory 4131 is an on-demand memory, which is generally used to store formal parameters of functions, automatic variables or data allocated by the runtime, instructions, etc., which may be DDR (Double Data Rate), SDR (Storage Data Register) A dynamic random access memory (DRAM) such as a memory data register.
  • DDR Double Data Rate
  • SDR Serial Data Register
  • DRAM dynamic random access memory
  • the gold finger connector 43 includes a socket port 431 and a patch terminal 432.
  • the socket slot 431 can be disposed on the TV core subsystem 41, or can be separately disposed on an adapter board, and the setting manner can be changed according to the setting manner of the expansion card 42 in the television 40, so that the television set The 40 is smaller and lighter.
  • the TV core module 411 is electrically connected to the socket 431 and transmits communication and control signals, such as a UART (Universal Asynchronous Receiver/Transmitter) / IIC (Inter-Integrated Circuit) / An IR (Infrared) communication signal or the like, and an audio/video signal is connected to the slot 431.
  • the power module 44 is also electrically connected to the socket port 431 to provide a power signal (such as a 12V/5V/3V voltage signal).
  • the connector terminal 432 is disposed on the expansion card 42 and may be a gold finger connector made of a printed circuit board. When the connector terminal 432 is inserted into the socket port 431, the conductive portions on the two are in contact with each other to form an electrical connection. The communication and control signals, audio/video signals, and power signals are transmitted to the expansion card 42.
  • the surface of the conductive portion of the plug terminal 432 is gold plated, and has the characteristics of good electrical conductivity, wear resistance and oxidation resistance.
  • the expansion card 42 includes a function expansion module 421, an external interface 422, a memory 423, and a direct current to direct current (DC/DC) power supply 424 disposed on a Printed Circuit Board (PCB).
  • PCB Printed Circuit Board
  • the function expansion module 421 is a core component of the expansion card 42, and includes a processor and various functional units that receive communication and control signals input from the patch terminal 432, audio/video signals, or data signals input by the external interface 422, and then Performing, processing, computing, etc. on the above signals, returning the processing result or data to the television core module 411 or outputting to an external device connected to the external interface 422 Standby or external network.
  • the detailed internal unit is described in Figure 4 below.
  • the external interface 422 includes any one or a combination of at least two of a universal serial interface (Universal Serial Bus) 4221, a card reader 4222, a network interface 4223, and other interfaces 4224.
  • USB interface 4221 is used to connect USB memory or other serial communication devices using USB interface.
  • the card reader 4222 can read many different types of memory cards.
  • the network port 4223 can be connected to various external networks such as Ethernet, telephone network, wired network, and optical fiber network.
  • the interfaces can be RJ-45, RJ-11, parallel port (LPT port), SC port (fiber port), and the same A variety of forms such as shaft ports.
  • the other interface 4224 is, for example, an IDE (Integrated Device Circuit) interface connected to a hard disk or an optical drive, an ATA/SATA (Advanced Technology Attachment/ Serial Advanced Technology Attachment) interface, a mouse interface, a keyboard interface, Gamepad interface, or microphone interface and other types.
  • IDE Integrated Device Circuit
  • ATA/SATA Advanced Technology Attachment/ Serial Advanced Technology Attachment
  • the memory 423 functions as a storage data unit of the function expansion module 421 and can store audio/video signal data as well as communication and control signal data. It includes dynamic memory 4231 and static memory 4232.
  • the static memory 4232 can be a flash memory.
  • the dynamic memory 4231 may be a dynamic random access memory (DRAM) such as DDR or SDR.
  • DRAM dynamic random access memory
  • the DC-to-DC power supply 424 receives the power signal (12V) input from the plug terminal 432, which serves as a switching power supply, and can perform a step-up/step-down operation on the input power signal to convert it into a desired one.
  • the voltage is fixed and output to the function expansion module 421, the external interface 422, and the memory 423 to provide a suitable operating voltage for each component.
  • FIG. 4 is a circuit block diagram showing a function expansion module provided by the present invention.
  • the function expansion module 421 of the present invention includes a plurality of functional units, which can be divided into two major types: a processing unit and an interface unit.
  • the processing unit includes a central processing unit 4211, and a combination of any one or at least two of a streaming media processing unit 4219, a video processing unit 42110, an audio processing unit 42111, and a graphics processing unit 42112.
  • the interface unit includes a static memory interface 4212, a dynamic memory interface 4213, a video input and output interface 4214, an audio input and output interface 4215, a data communication bus 4216, an external device interface 4217, a general interface 4218, Any one or a combination of at least two of the USB controller 42113, the network card controller 42114, and the ATA interface 42115.
  • the processing unit is responsible for executing the received communication and command signals and processing the received audio/video signals.
  • the streaming media processing unit 4219 is responsible for processing the received streaming media data.
  • the video processing unit 42110 is responsible for processing the video signal.
  • the audio processing unit 42111 is responsible for processing the audio signals.
  • the graphics processing unit 42112 is responsible for generating a program graphical interface such as a program menu, or generating a user interface such as a learning screen, an entertainment screen, and an electronic game screen.
  • the central processing unit 4211 is responsible for controlling all processing units and interface units, and receiving and executing incoming communication and command signals.
  • the interface unit is responsible for internal, external and data communication and transmission between the units.
  • static memory interface 4212 is responsible for reading and writing to static memory 4232.
  • the dynamic memory interface 4213 is responsible for reading and writing operations to the dynamic memory 4231.
  • the video input/output interface 4214 is responsible for the input and output operations of the video signal.
  • the audio input/output interface 4215 is responsible for input and output operations of audio signals.
  • the data communication bus 4216 is responsible for the transmission of communication and command signals as well as data communication operations between internal units.
  • the external device interface 4217 is responsible for communication and data transfer between the function expansion module 421 and external devices.
  • the general-purpose interface 4218 not only supports common interrupt and query low-speed data transmission methods, but also supports DMA (Direct Memory Access) high-speed data transmission mode, and supports multiple I/O port types to meet various application requirements.
  • the USB controller 42113 is responsible for reading external USB data or writing data to an external USB device.
  • the NIC controller 42114 is responsible for communication and data transmission with the external network.
  • ATA interface 42115 is responsible for reading and writing the card reader, hard disk, optical drive and other devices.
  • the present invention standardizes the expansion card 42 so that the expansion card 42 can be adapted to a wider area and more suitable for manufacturers.
  • the modular design of each functional unit or interface allows for flexible and cost-effective configuration.
  • it is only necessary to combine functional units or interfaces according to functional requirements. In this way, there is enough room for future new functions, new modules, and new interfaces to be added, and the future modules are connected with the existing modules, and everything is prepared from interface specifications and software upgrades.
  • New function modules only need to be added in the future You can join directly using the same interface specifications and conforming to the unified protocol specification.
  • the entire system software can be updated and upgraded through various methods such as USB interface and network port.
  • Digital all-in-one expansion card The function expansion module of the digital all-in-one expansion card 421 includes a set-top box chip, which can receive digital interactive TV program signals.
  • the external interface 422 of the digital all-in-one expansion card includes an RF interface (cable TV interface), a network port, and an HDMI interface. With a digital all-in-one expansion card, you can watch cable digital HD signals without connecting to a set-top box.
  • HD recordable card The function expansion module 421 of HD recordable card includes video processing unit, audio processing unit, USB controller and ATA interface, which can convert TV programs into video files and store them to flash memory chips. .
  • the external interface of the HD recordable card 422 includes a USB interface and an IDE/ATA/SATA interface that can be connected to a USB memory or a removable hard disk to store video files.
  • the HD recordable card can also include a timer, and users can record TV programs at will by using instant recording or timed recording. In addition, users can download high-definition video files such as MPEG (Motion Picture Expert Group), TS Stream (Transport Stream), and then play them on HD.
  • MPEG Motion Picture Expert Group
  • TS Stream Transport Stream
  • the function expansion module 421 for learning the entertainment card includes a central processing unit and a graphics processing unit.
  • the static memory 4232 stores programs such as a poetry reading, English learning materials and electronic games, and the external interface 422 includes a game controller. interface.
  • the central processing unit and graphics processing unit can execute the program stored in the static memory 4232 according to the user selection, and play the execution result (including the graphic menu, audio signal, video signal) through the television 40.
  • expansion card is for making the present invention easier to understand by the person skilled in the art.
  • the expansion card of the present invention is not limited to the above structure, and various new functional units and interface units can be added to the expansion card.
  • the technician can also design the functional unit and interface unit of the expansion card and other functional modules according to requirements.
  • FIG. 5 exemplifies a flow chart of a control method of a television set provided by the present invention.
  • the expansion card 42 is inserted into the television set 40, When the connector terminal 432 of the expansion card is inserted into the socket port 431, the conductive portions on the two are in contact with each other to form an electrical connection, and the working voltage provided by the power module 44 is input to the expansion card via the connector terminal 432 and the socket port 431. 42, making the insertion detection circuit conductive.
  • the insertion detecting circuit may be disposed on the expansion card, or may be disposed on the power module 42 or the television core subsystem 41, and is located on the current loop formed by the connector terminal 432 and the socket port 431, when the connector terminal 432 When electrically connected to the socket 431, the current loop is turned on, and the insertion detecting circuit outputs an identification signal 1 to the television core subsystem 41.
  • the television core subsystem 41 After receiving the identification signal 1, the television core subsystem 41 is controlled by communication and control signals.
  • the DC/DC power supply 424 of the television function expansion unit 32 is turned on, and the DC/DC power supply 424 supplies the operating voltage to each unit module on the expansion card 42, so that the expansion card 42 operates normally.
  • the identification signal 1 outputted by the insertion detecting circuit corresponds to the function type of the expansion card 42, which not only indicates that the expansion card 42 has been inserted into the television and is electrically connected to the television core subsystem 41, yet further
  • the TV core subsystem 41 is informed of the function type of the expansion card, such as a digital all-in-one expansion card, a high-definition recordable card, or a learning entertainment card.
  • the identification signal 1 can use a set of binary codes to represent expansion cards of different functional types.
  • the expansion card 42 outputs an audio/video type signal identification 2 to the television core subsystem 41, and the audio/video type signal identification 2 can indicate the signal type of the expansion card 42 input by the external interface 422 by a set of binary codes.
  • RF RF
  • Composite Video Broadcast Signal CVBS
  • luminance/chrominance signal Y/C
  • color difference signal Y/Pb/Pr
  • VGA Video Graphics Array
  • DVI Digital Visual Interface
  • HDMI High Definition Multimedia Interface
  • the TV core subsystem 41 After receiving the identification signal 2, the TV core subsystem 41 switches the corresponding display channel and outputs the audio/video content of the expansion card 42, and the communication between the TV core subsystem 41 and the expansion card 42 via UART/IIC/IR. Perform mutual signal control and communication.
  • the user can select whether the television 40 is watching the program in the normal television reception mode or the expansion card mode through the remote controller.
  • the infrared command sent by the remote controller is received and decoded by the television 40, Firstly, it is transmitted to the TV core module 411, and then processed by the TV core module 411 to issue a control command, which is transmitted to the function expansion module 421 of the expansion card 42 via the gold finger connector 43 for corresponding operation; of course, due to the expansion card 42
  • the function expansion module 421 has an external device interface 4217 that can receive IR commands, so that the remote controller can also directly perform data communication with the expansion card 42 to control its operation.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Description

可实现功能扩展的电视机 本申请要求了 2009年 1月 3日提交的， 申请号为 200910013627.X, 发明 名称为 "可实现功能扩展的电视机" 的中国专利申请的优先权， 其全部内容 通过引用结合在本申请中。
技术领域
本发明涉及一种能够实现功能扩展的电视机， 该电视机通过电视功能扩 展组件能够实现不同的功能， 电视功能扩展组件能够可拆卸地安装到电视机 的内部。
背景技术
目前， 被广泛使用的多为接收模拟信号的电视机， 在数字电视到来的时 代， 大多是通过外部设备， 如， 机顶盒、 DVD ( Digital Video Disc, 数字 视频光盘）、 DVB ( Digital Video Broadcasting, 数字视频广播， 一种国际承 认的数字电视公开标准）， 在经过数字到模拟信号的转换后， 将数字信号接收 后转换成 A/V (标准视频信号）接口信号或 Y、 U、 V (模拟分量视频信号， 随着 DVD、 卫星数字电视机顶盒出现）接口信号等低显示分辨率的信号给电 视机显示， 如图 1所示， 电视机通过 A/V端口分别接驳 DVD机顶盒、 DVB 机顶盒、 IP ( Internet Protocol, 因特网协议） 电视机顶盒， 同时需要 3个 遥控器对其分别进行控制， 此时， 人们观看到的还是模拟的、 分辨率很低的 图像。 同时由于外部设备种类多， 这些设备间有许多资源重复， 如： 每个机 器都要电源， 每台设备都需一个遥控器， 每个产品都有数量不等、 颜色不同 的输出端子， 这样就造成了外部连线复杂， 安装、 使用极不方便而且占空间， 使用不同设备都需重新连一次线头。 同时， 多个遥控器也不便保存、 操作。 用户增加一个新设备， 必需是完整的机器， 因而用户综合使用成本偏高， 同 时各设备输出无规范， 同类产品接口、 性能差异大。
另一方面，一些昂贵的高端的数字电视机，具有高分辨率（ 1080P、 1080i、 720P )的显示模式， 外部设备需要通过种类繁多的接口与其配接， 比如 VGA ( Video Graphics Array,视频传输接口）、 DVI( Digital Visual Interface, 数字视频接口）、 HDMI ( High Definition Multimedia Interface, 高清 晰多媒体接口 ） 等。 由于电视机本身接口种类繁多， 使得外部配套产品， 如： 机顶盒的输出模式也各式各样， 往往机顶盒的输出信号也无法确保将高 端电视机的图像质量效果发挥至极致。
现有技术中， 也有将 DVD、 DVB, IP电视机顶盒内置入电视机的组合式 电视机。 例如中国第 200420109717.1号发明专利， 公开了一种电视数字视频 光碟播放一体化机， 其通过将数字视频光碟 DVD播放功能内置于电视机中， 使得电视机既可以收看电视节目， 又能播放数字视频光碟 DVD。 又如中国第 200520115859.3号发明专利，公开了一种可录 IP电视一体机， 其将 IP电视机 顶盒内置到液晶电视中。
然而， 在上述组合式电视机的内部， DVD、 DVB, IP电视机顶盒是采用 不同的接口电路连接电视机的机芯电路。 各种接口的标准并不统一， 也不具 有扩展升级功能， 很难增加新的数字节目接收源。 并且不同的接口类型导致 了现有系统升级也比较困难， 更重要的是无法适应不同地区的加密电视接收， 无法满足各个地区、 各个运营商之间可能不同的信息流要求。 由于将某一种 特定功能与主机做成整机， 破坏了主机的标准化， 同时， 特定功能还可能不 是所有客户所需要的。 此类机型一般为某一类特殊客户群体定制， 用于特定 场合， 而非大众化需求， 产品不能全面推广。 这类组合式电视机由于组合模 块之间的差异， 导致产品规格不一、 不易实现行业标准化， 较难在行业内进 行相关产品的配套生产， 因此生产成本较高、 配套产品不规范。
随着数字化技术的发展， 目前， DVD、 DVB, IP电视机顶盒等设备内部， 对于音频、 视频信号的读出、 解压缩等处理都已完全数字化， 而且技术标准 规范。 针对数字电视的数字音视频标准接口 HDMI已经在全球推广普及， 这 样， 在这些设备与数字电视之间不再需要传送模拟信号， 而直接传输标准的 音频、 视频数字信号将是大势所趋。
针对现有技术的上述不足， 为了克服现有的电视机生产成本高， 配套产 品不规范， 同类产品标准不统一， 客户选购、 安装及使用复杂的诸多缺点， 也为了适应数字电视技术不断发展的趋势， 有必要提供一种符合数字电视标 准、 可智能化扩展功能、 并且适配范围广、 升级方便的电视机。
发明内容
本发明的目的在于提供一种符合数字电视标准、 并且能提供不同功能选 择的电视机。
为了实现上述目的， 本发明提供一种电视机， 其包括电视机芯子系统、 电视功能扩展组件以及金手指连接器。 电视机芯子系统设置在电视机内部 , 并接收不同格式的音频 /视频信号。电视功能扩展组件用于提供不同功能选择。 金手指连接器电连接在电视机芯子系统和电视功能扩展组件之间。 金手指连 接器包括第一连接端和第二连接端。 第一连接端设置在电视功能扩展组件上 , 第一连接端包括第一电源信号端子、 第一通讯信号端子和第一音频 /视频信号 端子。 第二连接端电连接电视机芯子系统， 第二连接端包括第二电源信号端 子、 第二通讯信号端子和第二音频 /视频信号端子， 用于分别与第一连接端的 对应的第一电源信号端子、 第一通讯信号端子和第一音频 /视频信号端子电连 接。
本发明提供的电视机， 由于充分考虑了数字信号源的多样性及发挥数字 电视最佳显示效果以及系统未来扩展能力方面因素， 采用了模块化设计， 电 视机包括电视功能扩展组件和金手指连接器， 通过电视功能扩展组件模块化 与金手指连接器标准化相配合， 实现电视功能扩展组件接驳方便及扩展灵活， 这样， 既能完全体现数字电视源显示标准， 还能收看不同类型的数字电视源， 如数字广播源、 数字播放源及数字网络源等， 也能完成现阶段模拟电视向数 字电视的过渡， 并实现追时可录、 学习娱乐、 网络下载等诸多功能升级或增 加新的功能。 消费者只需选购符合标准化接口的电视功能扩展组件功能模块 即可， 从而以较低而灵活的成本提供了不同功能模块的电视功能扩展组件与 电视机的组合使用， 同时支持单独使用。 由于 "模块化" 的配置灵活的特点， 也拓展延伸了产品的消费领域， 新技术、 新产品可通过加入新开发的模块， 加入系统中从而得到应用。
附图说明
图 1是表示传统电视机的接收装置的示意图；
图 2是表示本发明提供的电视机的系统原理框图；
图 3是表示本发明提供的电视机的电路方块示意图；
图 4是表示本发明提供的功能扩展模块的电路方块示意图；
图 5示例说明本发明提供的电视机的控制方法流程图。
具体实施方式
现在， 将参考附图来详细地描述本发明的具体实施方式。 在这些图中， 用相同的标记表示相同或相似的元件， 即使在不同图中描述它们。
图 2是表示根据本发明的电视机的系统原理框图。
参考图 2所示， 本发明的电视机 30包括电视机芯子系统 31、 电视功能扩 展组件 32和连接在两者之间的金手指连接器 33。 电视机 30上开设有接插口 (图未示）， 接插口与金手指连接器 33相对应， 用于安装电视功能扩展组件 32。
电视机芯子系统 31是电视机 30的主板， 其设置在电视机 30内部， 可以 通过电视机 30的多种外部接口接收不同格式的音频 /视频信号，这些信号可以 是模拟信号， 也可以是数字信号。 这些信号包括接收射频信号 （Radio Frequency , RF )、 复合视频广播信号 ( Composite Video Broadcast Signal, CVBS )、 亮度 /色度信号（Y/C )、 色差信号（Y/Pb/Pr )、 VGA ( Video Graphics Array )信号、 DVI ( Digital Visual Interface )信号、 HDMI ( High Definition Multimedia Interface )信号以及其他现有的各种音频 /视频信号。 并将音频 /视 频信号进行处理后再输出至电视的显示面板和音响设备。 电视机芯子系统 31 通过金手指连接器 33可以与各种类型的电视功能扩展组件 32搭配使用。 电视功能扩展组件 32可以为电视机 30扩展功能， 其通过金手指连接器 33与电视机芯子系统 31之间进行电连接和数据通讯。 电视功能扩展组件 32 具有统一的外观尺寸和统一的接口定义，可以与电视机芯子系统 31搭配使用， 并可通过金手指连接器 33从电视机 30上安装或拆卸。 电视功能扩展组件 32 包括不同功能的模块电路， 实现的功能也有所差异。 本发明的实施方式中， 电视功能扩展组件 32表现为扩展卡的形式， 本领域的普通技术人员在本发明 公开的基础上可以明了电视功能扩展组件 32的其他表现形式 ,例如扩展盒等。
本发明的电视功能扩展组件 32可以是但不局限于以下形式的组件： 可以 播放高清视频并可录像的追时可录扩展卡 , 可以学习英语和打游戏的学习娱 乐扩展卡， 可以代替机顶盒播放数字信号的数字电视扩展卡， 可以在网上下 载电影的网络下载扩展卡等等。 支持电视功能扩展组件 32的电视机 30可以 通过更换不同功能的电视功能扩展组件 32实现不同的功能。
金手指连接器 33 包括接插端子和接插槽口 （图未示）。 接插端子设置在 电视功能扩展组件 32上。 接插槽口设置在电视机 30的接插口内， 并与电视 机芯子系统 31 电连接， 可以安装固定设置在电视功能扩展组件 32上的接插 端子。 接插端子包括第一电源信号端子、 第一控制信号端子和第一音频 /视频 信号端子。 接插槽口包括第二电源信号端子、 第二控制信号端子和第二音频 / 视频信号端子， 分别用于与接插端子的对应的第一电源信号端子、 第一控制 信号端子和第一音频 /视频信号端子电连接。
当然， 在本发明的另一种实施方式中， 接插端子和接插槽口的位置关系 也可以相互调换， 即将接插槽口设置在电视功能扩展组件 32上。 接插端子设 置在电视机 30的接插口内， 并与电视机芯子系统 31电连接。
相对于具有不同功能的电视功能扩展组件 32来说， 其对应的金手指连接 器 33具有统一规格的接插端子和接插槽口， 这里的规格不仅指接插端子和接 插槽口的电信号的排布规定相同 , 而且指物理尺寸上的尺寸规格统一。 如图 2所示， 本发明的金手指连接器 33所传输的信号中， 至少包括电源 信号、通讯及控制信号和音频 /视频信号。 由于本发明的金手指连接器 33所传 输的信号中包括了电源信号， 因此可以实现电视机 30通过电源信号给电视功 能扩展组件 32提供电源， 同时通过通讯及控制信号在电视功能扩展组件 32 与电视机 30之间建立控制信息联络机制以便协调统一地工作， 从而在电视机 芯子系统 31和电视功能扩展组件 32之间传输音频 /视频信号。
本发明的金手指连接器 33在用统一规格的接插端子和接插槽口来规范电 源信号、 通讯及控制信号和音频 /视频信号输出标准的同时， 还规范了电视机 30的扩展接口的物理尺寸，将电视功能扩展组件 32以接插的形式连接和固定 在金手指连接器 33上。
在本发明中， 由于充分考虑了数字电视信号源的多样性及发挥数字电视 最佳显示效果以及系统未来扩展能力方面因素， 电视功能扩展组件 32采用了 模块化设计， 即以金手指连接器 33 的设计标准化配合电视功能扩展组件 32 的模块化， 实现产品接驳方便及扩展灵活， 这样， 既能完全体现数字电视源 显示标准， 还能收看不同类型的数字电视源， 如数字广播源、 数字播放源及 数字网络源等， 也能完成现阶段模拟电视向数字电视的过渡， 并实现追时可 录、 学习娱乐、 网络下载等诸多功能升级或增加新的功能， 消费者只需选购 符合标准化接口的电视功能扩展组件 32功能模块即可， 从而以较低而灵活的 成本提供了不同功能模块的电视功能扩展组件 32与电视机 30的组合使用， 同时支持单独使用。 由于 "模块化" 的配置灵活的特点， 也拓展延伸了产品 的消费领域， 新技术、 新产品可通过加入新开发的模块， 加入系统中从而得 到应用。
下面详细描述本发明的采用不同功能模块的电视功能扩展组件 32的电视 机的实施方式。
图 3是表示本发明提供的电视机的电路方块示意图。
其中， 电视机功能扩展组件可以为但不局限于扩展卡， 本发明实施例 组成图。 参考图 3所示， 本发明的电视机 40包括电视机芯子系统 41、 扩展 卡 42、 连接在电视机芯子系统 41和扩展卡 42之间的金手指连接器 43、 电源 模块 44以及 LCD ( Liquid Crystal Display, 液晶显示器） 面板 45。 其中电 源模块 44电连接电视机芯子系统 41和 LCD面板 45， 为其提供工作电压， 并 经由金手指连接器 43为扩展卡 42提供工作电压， 电源模块 44也可以整合入 电视机芯子系统 41内部。
电视机芯子系统 41是电视机 40的主板， 其设置在电视机 40内部。 其包 括电视机芯模块 411、 音频输出 412、 存储器 413等功能模块。
电视机芯模块 411 内部包括微处理器、 图形处理器、 视频处理单元、 音 频处理单元、 解调器、 解码器、 数据通讯总线、 I/O ( Input/Output, 输入 /输 出 )接口等多个功能单元。 其可以通过电视机 40的多种外部接口不同格式的 音频 /视频信号， 这些信号可以是模拟信号， 也可以是数字信号。 如图 3所示， 这些信号可以包括 CVBS信号、 Y/C信号、 Y/Pb/Pr信号、 DVI信号、 HDMI 信号、 TV信号和 VGA信号等音频 /视频模拟信号或数字信号。 电视机芯模块 411通过外设 I/O接口与外部设备连接并通讯， 其通讯可以采用通用 I/O接口 (General Purpose IO Interface, GPIO)、 脉宽调制 （Pulse Width Modulation, PWM )、 通用异步收发器 ( Universal Asynchronous Receiver/Transmitter, UART)、 红外（Infrared, IR )等多种方式进行。 电视机芯模块 411对接收到的 不同格式的信号进行处理， 将视频信号转变为 LVDS 信号 （low voltage differential signaling, 低电压差动信号） 并输出至 LCD面板 45以显示图像， 将音频信号输出至音频输出 412以产生声音。
音频输出 412用于将电信号形式的音频信号转变为空气振动形式的声音 信号， 其可以是喇叭、 扬声器等器件。
存储器 413作为电视机芯模块 411的存储数据单元， 可以存储音频 /视频 信号数据以及通讯及控制信号数据。 其包括动态存储器 4131 和静态存储器 4132。 静态存储器 4132是分配固定的存储器， 一般用来存储全局变量或编译 前的数据、 指令等， 其可以是闪存（Flash )。 动态存储器 4131是按需分配的 存储器， 一般用来存储函数的形参、 自动变量或运行时分配的数据、 指令等， 其可以是 DDR( Double Data Rate,双倍速内存）、 SDR( Storage Data Register 存贮器数据寄存器）等动态随机存储器（Dynamic Random Access Memory, DRAM )。
参考图 3所示， 金手指连接器 43包括接插槽口 431和接插端子 432。 接 插槽口 431可以设置在电视机芯子系统 41上，也可以单独设置在一转接板上， 其设置方式可以根据扩展卡 42在电视机 40内的设置方式进行更改， 以使得 电视机 40的体积更小，重量更轻。 电视机芯模块 411与接插槽口 431电连接， 并传输通讯及控制信号 ， 如 UART ( Universal Asynchronous Receiver/Transmitter , 通用异步收 /发器） /IIC ( Inter-Integrated Circuit , 内部 整合电路）/ IR ( Infrared，红外）通讯信号等、音频 /视频信号至接插槽口 431。 电源模块 44也电连接至接插槽口 431 , 以提供电源信号（如 12V/5V/3V电压 信号）。
接插端子 432设置在扩展卡 42上， 其可以是由印刷电路板制作的金手指 接插件， 当接插端子 432插入接插槽口 431时， 二者上的导电部相互接触形 成电连接， 使得通讯及控制信号、 音频 /视频信号以及电源信号传输至扩展卡 42。 接插端子 432的导电部表面镀金， 具有导电性好、 耐磨并抗氧化的特性。
扩展卡 42包括设置在印刷电路板 ( Printed Circuit Board, PCB )上的功 能扩展模块 421、 外部接口 422、 存储器 423以及直流转直流（DC/DC ) 电源 424。
功能扩展模块 421是扩展卡 42的核心部件，包括处理器和各种功能单元， 其接收由接插端子 432输入的通讯及控制信号、 音频 /视频信号或由外部接口 422输入的数据信号， 然后对上述信号进行执行、 处理、 运算等操作， 将处理 结果或数据返回电视机芯模块 411或输出至与外部接口 422相连接的外部设 备或外部网络。 其详细内部单元请参见下文图 4所述。
外部接口 422包括通用串行接口（Universal Serial Bus, USB接口） 4221、 读卡器 4222、 网络接口 4223和其他接口 4224中任意一个或者至少两个的组 合。 USB接口 4221用于连接 USB存储器或其他采用 USB接口的串行通讯设 备。 读卡器 4222可以读取多种不同类型的存储卡。 网^矣口 4223可以连接 以太网、电话网、有线网、光纤网等多种外部网络，其接口可以是 RJ-45、RJ-11、 并口 （LPT口）、 SC端口 （光纤端口）、 同轴端口等多种形式。 其他接口 4224 例如是连接硬盘或光驱的 IDE( Integrated Device Electronics,集成设备电路 ) 接口 、 ATA/SATA ( Advanced Technology Attachment/ Serial Advanced Technology Attachment , 并行 /串行硬件驱动）接口、 鼠标接口、 键盘接口、 游戏手柄接口、 或是麦克风接口等多种类型。
存储器 423作为功能扩展模块 421的存储数据单元， 可以存储音频 /视频 信号数据以及通讯及控制信号数据。 其包括动态存储器 4231 和静态存储器 4232。 静态存储器 4232可以是闪存（Flash )。 动态存储器 4231可以是 DDR、 SDR等动态随机存储器（DRAM )。
直流转直流（DC/DC ) 电源 424接收由接插端子 432输入的电源信号 ( 12V ), 其作为开关电源， 可以对输入的电源信号进行升压 /降压操作， 将其 转变为所需的固定电压并输出至功能扩展模块 421、 外部接口 422和存储器 423 , 从而为各部件提供适合的工作电压。
图 4是表示本发明提供的功能扩展模块的电路方块示意图。
参考图 4所示， 本发明的功能扩展模块 421 包括诸多功能单元， 这些功 能单元可分为处理单元和接口单元这两大类型。 处理单元包括中央处理器 4211 , 以及流媒体处理单元 4219、 视频处理单元 42110、 音频处理单元 42111 和图形处理单元 42112 中的任意一个或者至少两个的组合。 接口单元包括静 态存储器接口 4212、 动态存储器接口 4213、视频输入输出接口 4214、 音频输 入输出接口 4215、 数据通信总线 4216、 外部设备接口 4217、 通用接口 4218、 USB控制器 42113、 网卡控制器 42114以及 ATA接口 42115中的任意一个或 者至少两个的组合。
处理单元负责执行接收的通讯及指令信号， 处理接收的音频 /视频信号。 例如流媒体处理单元 4219负责处理接收的流媒体数据。 视频处理单元 42110 负责处理视频信号。 音频处理单元 42111 负责处理音频信号。 图形处理单元 42112负责产生节目菜单等程序图形界面， 或者产生学习画面、 娱乐画面、 电 子游戏画面等用户界面。 中央处理器 4211负责控制所有的处理单元和接口单 元， 并接收和执行输入的通讯及指令信号。
接口单元负责内部、 外部以及各单元之间的数据通信和传输。 例如静态 存储器接口 4212负责对静态存储器 4232的读写操作。 动态存储器接口 4213 负责对动态存储器 4231的读写操作。 视频输入输出接口 4214负责视频信号 的输入和输出操作。音频输入输出接口 4215负责音频信号的输入和输出操作。 数据通信总线 4216负责通讯及指令信号的传输以及内部各单元之间的数据通 信操作。 外部设备接口 4217负责功能扩展模块 421与外部设备之间的通讯和 数据传输。 通用接口 4218不仅支持常用的中断和查询低速数据传输方式， 还 支持 DMA ( Direct Memory Access, 直接存储器访问）高速数据传输方式， 支 持多种 I/O端口类型， 可满足多种应用需求。 USB控制器 42113 负责读取外 部 USB数据，或对外部 USB设备进行数据写入。 网卡控制器 42114负责与外 部网络的通讯和数据传输。 ATA接口 42115 负责对读卡器、 硬盘、 光驱等设 备进行读写操作。
如图 3和图 4所示， 本发明将扩展卡 42标准化， 可使所述扩展卡 42适 应地域更广泛， 适用厂家更多。 而将各功能单元或接口进行标准的模块化设 计， 功能配置自由灵活而且成本相对较低。 产品设计时， 只需根据功能需要， 把一个个功能单元或接口组合起来就可以了。 这样， 为未来新功能、 新模块、 新接口的加入运用留有足够的发挥空间 , 并且将未来模块与己有模块联结无 论从接口规格、 软件升级等方面都己作好一切准备。 日后新增功能模块只需 使用同样的接口规格、 符合统一的协议规范就能直接加入。 另外， 整个系统 软件可通过 USB接口、 网 ^矣口等多种方式进行更新升级。
下面描述本发明的扩展卡的几种应用类型。
1、 数字一体机扩展卡： 数字一体机扩展卡的功能扩展模块 421包括机顶 盒芯片， 可以接收数字交互电视节目信号。数字一体机扩展卡的外部接口 422 包括 RF接口 （有线电视接口）、 网 ^矣口、 HDMI接口。 采用数字一体机扩 展卡， 不用连接机顶盒就可以收看有线数字高清信号。
2、高清可录模卡： 高清可录模卡的功能扩展模块 421包括视频处理单元、 音频处理单元、 USB控制器和 ATA接口， 可以将电视节目转换为视频文件并 存储至闪存（Flash ) 芯片。 高清可录模卡的外部接口 422 包括 USB接口和 IDE/ATA/SATA接口， 可以连接至 USB存储器或移动硬盘以存储视频文件。 高清可录模卡还可以包括计时器， 用户可以采用即时录制或定时录制录像方 式 , 随意录制电视节目。 此外 , 用户也可以在网上下载 MPEG ( Motion Picture Expert Group , 活动图像专家组）、 TS流（ Transport Stream , 传输流）等高清 视频文件， 然后利用高清可录模卡进行播放。
3、 学习娱乐模卡： 学习娱乐模卡的功能扩展模块 421包括中央处理器和 图形处理单元， 静态存储器 4232存储有配画诗朗诵、 英语学习资料以及电子 游戏等程序， 外部接口 422 包括游戏手柄接口。 中央处理器和图形处理单元 可以根据用户选择来执行静态存储器 4232中存储的程序， 并将执行结果（包 括图形菜单、 音频信号、 视频信号）通过电视机 40进行播放。
应当注意， 上述对扩展卡的描述是为了使本领域技术人员更易于理解本 发明， 本发明的扩展卡不局限于上述结构， 各种新功能单元和接口单元均可 加入扩展卡中， 本领域技术人员亦可根据需求对扩展卡的功能单元和接口单 元以及其他功能模块进行组合设计。
现在， 将参考图 3和图 5详细地描述本发明的控制方法。 图 5示例说明 本发明提供的电视机的控制方法流程图。 首先将扩展卡 42插入电视机 40中 , 当扩展卡上的接插端子 432插入接插槽口 431 时， 二者上的导电部相互接触 形成电连接， 电源模块 44提供的工作电压经由接插端子 432和接插槽口 431 输入扩展卡 42， 使得插入检测电路导通。插入检测电路可以设置在扩展卡上， 也可以设置在电源模块 42或电视机芯子系统 41上， 其位于接插端子 432和 接插槽口 431所构成的电流回路上， 当接插端子 432和接插槽口 431 电连接 时， 电流回路导通， 插入检测电路输出一个标识信号 1至电视机芯子系统 41， 电视机芯子系统 41收到标识信号 1后， 通过通讯及控制信号控制电视功能扩 展组件 32的 DC/DC电源 424打开， DC/DC电源 424供应工作电压至扩展卡 42上的各单元模块， 使扩展卡 42正常工作。
在本发明优选的实施方式中， 插入检测电路输出的标识信号 1 与扩展卡 42的功能类型相对应，其不仅表示扩展卡 42已插入电视机并与电视机芯子系 统 41 电连接， 还进一步向电视机芯子系统 41告知了扩展卡的功能类型， 如 数字一体机扩展卡、 高清可录模卡或学习娱乐模卡等。 例如， 标识信号 1 可 以采用一组二进制码来表示不同功能类型的扩展卡。
随后， 扩展卡 42输出音频 /视频类型信号标识 2至电视机芯子系统 41， 音频 /视频类型信号标识 2可以通过一组二进制码来表示由外部接口 422输入 扩展卡 42 的信号类型， 这些信号包括射频信号 （RF )、 复合视频广播信号 ( Composite Video Broadcast Signal, CVBS )、 亮度 /色度信号（ Y/C )、 色差信 号（ Y/Pb/Pr )、 VGA ( Video Graphics Array )信号、 DVI ( Digital Visual Interface ) 信号、 HDMI ( High Definition Multimedia Interface )信号以及其他现有的各种 音频 /视频信号。
电视机芯子系统 41收到标识信号 2后， 切换对应的显示通道并输出扩展 卡 42的音频 /视频内容，电视机芯子系统 41和扩展卡 42之间通过 UART/IIC/IR 等通讯方式进行相互的信号控制与通信。
此后 , 用户可以通过遥控器选择电视机 40是在普通电视接收模式还是扩 展卡模式下收看节目。 遥控器发出的红外指令经电视机 40接收解码后， 可以 先传输至电视机芯模块 411 , 再经电视机芯模块 411处理后发出控制指令， 经 由金手指连接器 43传输至扩展卡 42的功能扩展模块 421 , 以进行对应操作； 当然， 由于扩展卡 42的功能扩展模块 421 中具有可以接收 IR指令的外部设 备接口 4217， 因此遥控器也可以与扩展卡 42之间直接进行数据通讯， 以控制 其操作。
尽管为示例目的， 已经公开了本发明的优选实施方式， 但是本领域的普 通技术人员将意识到， 在不脱离由所附的权利要求书公开的本发明的范围和 精神的情况下， 各种改进、 增加以及取代是可能的。

Claims

权利 要求 书
1、 一种电视机， 其特征在于， 包括：
电视机芯子系统， 设置在所述电视机内部， 并接收不同格式的音频 /视频信 号；
电视功能扩展组件， 用于提供不同功能选择； 以及
金手指连接器， 电连接在所述电视机芯子系统和所述电视功能扩展组件之 间， 包括：
第一连接端， 设置在所述电视功能扩展组件上， 所述第一连接端包括 第一电源信号端子、 第一通讯信号端子和第一音频 /视频信号端子； 以及 第二连接端， 电连接所述电视机芯子系统， 所述第二连接端包括第二 电源信号端子、 第二通讯信号端子和第二音频 /视频信号端子， 用于分别与 所述第一连接端的对应的第一电源信号端子、 第一通讯信号端子和第一音 频 /视频信号端子电连接。
2、 根据权利要求 1所述的电视机， 其特征在于， 所述第一连接端为一接插 端子， 所述第二连接端为一接插槽口， 该接插槽口夹持并电连接所述接插端子。
3、 根据权利要求 1所述的电视机， 其特征在于， 所述第一连接端为一接插 槽口， 所述第二连接端为一接插端子， 所述接插槽口夹持并电连接所述接插端 子。
4、 根据权利要求 1所述的电视机， 其特征在于， 所述电视功能扩展组件包 括：
功能扩展模块， 通过所述金手指连接器与所述显示装置的机芯电路电连接， 以相互通讯及传输数据；
外部接口， 连接在所述功能扩展模块和外部设备或外部网络之间， 使得所 述功能扩展模块与外部设备或外部网络相互通讯及传输数据； 以及
存储器， 连接所述功能扩展模块， 以存储所述功能扩展模块传输的数据。
5、 根据权利要求 4所述的电视机， 其特征在于， 所述功能扩展模块、 外部 接口和存储器设置在一印刷电路板上。
6、 根据权利要求 5所述的电视机， 其特征在于， 所述第一连接端包括由所 述印刷电路板制作的金手指接插件。
7、 根据权利要求 4所述的电视机， 其特征在于， 所述功能扩展模块包括机 顶盒芯片。
8、 根据权利要求 4所述的电视机， 其特征在于， 所述功能扩展模块包括流 媒体处理单元、 视频处理单元、 音频处理单元和图形处理单元中任意一个或者 至少两个的组合。
9、 根据权利要求 4所述的电视机， 其特征在于， 所述外部接口包括通用串 行接口、 网络接口和读卡器接口中任意一个或者至少两个的组合。
10、 根据权利要求 1 所述的电视机， 其特征在于， 所述电视功能扩展组件 还包括插入检测电路， 当所述金手指连接器的第一连接端电连接第二连接端时， 所述插入检测电路产生一标示信号并输出至所述电视机芯子系统。
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