CN101282431B - Set-top box and standby, awakening method thereof - Google Patents

Set-top box and standby, awakening method thereof Download PDF

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Publication number
CN101282431B
CN101282431B CN 200810067091 CN200810067091A CN101282431B CN 101282431 B CN101282431 B CN 101282431B CN 200810067091 CN200810067091 CN 200810067091 CN 200810067091 A CN200810067091 A CN 200810067091A CN 101282431 B CN101282431 B CN 101282431B
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signal
unit
standby
set
top box
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CN 200810067091
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Chinese (zh)
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CN101282431A (en
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叶云杰
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/63Generation or supply of power specially adapted for television receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Characteristics of or Internal components of the client
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Characteristics of or Internal components of the client
    • H04N21/42692Characteristics of or Internal components of the client for reading from or writing on a volatile storage medium, e.g. Random Access Memory [RAM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/443OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4432Powering on the client, e.g. bootstrap loading using setup parameters being stored locally or received from the server

Abstract

The inventive provides a set-top box standby method, including: shutting off power of output unit after receiving a standby signal; shutting off power of signal processing unit; shutting off power of input unit; switching the memory unit to low-consumption state; switching the central processor unit to low-consumption state. According to characteristics of different functional units, the inventive embodiment determines whether to shut off the power or switch it to low power consumption state when the set-top box is in standby state, which not only makes the set-top box to be quickly wakened, but also keeps lower power consumption in standby state. The inventive embodiment also provides a set-top box wakening method and a set-top box.

Description

机顶盒待机、唤醒方法和机顶盒 Stand-top boxes, set-top boxes, and wake-up method

技术领域 FIELD

[0001] 本发明涉及消费电子技术领域,尤其涉及一种机顶盒待机、唤醒方法和机顶盒。 [0001] The present invention relates to the field of consumer electronics, and particularly to a set-top box in standby, wake-up method and set-top boxes. 背景技术 Background technique

[0002] 一方面随着数字卫星电视、数字地面电视和数字有线电视的发展,形成了对机顶盒的巨大市场需求;另一方面,随着全球能源的日渐紧张,全球节能呼声的日渐高涨,各国都开始重视节能问题。 [0002] on the one hand with the development of digital satellite TV, digital terrestrial television and digital cable, forming a huge demand for set-top boxes; on the other hand, with the growing tension in the global energy, global energy calls are growing, countries We are starting to focus on energy conservation issues. 如何实现机顶盒的省电,待机时的低功耗,是目前业界普遍关注的重 How to achieve the set-top box power saving, low power consumption during standby, heavy industry generally concern

点ο Point ο

[0003] 现有技术一实现机顶盒待机的技术方案是机顶盒的电源模块直接对各用电模块供电,待机时所有模块仍处于供电状态,仅仅是禁止视频输出。 [0003] the prior art to achieve a technical solution is a set top box STB standby power module directly to each power supply module, all modules remain in a standby power state, only the video output is prohibited.

[0004] 发明人在实现本发明的过程中发现现有技术一至少存在以下缺点:机顶盒处于待机状态时消耗的功率基本上与正常工作时的功率消耗相当。 [0004] The inventors have found that in the process of implementing the present invention, a prior art has at least the following disadvantages: when the STB power consumption in the standby state is substantially equivalent to the power consumption during the normal operation. 由于数以亿计的机顶盒长期处于假待机状态,会造成较大的能源浪废。 Because hundreds of millions of set-top boxes in the false long-term standby mode, will result in greater energy wasting.

[0005] 现有技术二主要是机顶盒处于待机状态时,关断除红外接收头和CPU单元以外的所有模块。 When [0005] the prior art two main set-top box in a standby state, all modules except try to get rid off the infrared receiver and the CPU unit. 这样待机时就只有红外接收头和CPU消耗功率。 Only infrared receiver and power consumption during this standby CPU.

[0006] 发明人在实现本发明的过程中发现现有技术二至少存在以下缺点:机顶盒待机后,在系统唤醒时需要重新载入软件系统和机顶盒的各模块参数设置,需要较长的重新启动时间,因此唤醒速度慢。 [0006] The inventors have found that in the process of implementing the present invention, the prior art has at least the two following disadvantages: After the set top box in standby, when the system needs to be reloaded each module wakeup parameters and set-top box software, require a longer restart time, so wake up slowly.

发明内容 SUMMARY

[0007] 本发明实施例目的在于提供一种机顶盒待机、唤醒方法和机顶盒,使得机顶盒既可以在待机时保持较低的功率功耗,又能较快速地唤醒。 Example [0007] The present invention aims to provide a set-top box in standby, wake-up method and set-top boxes, the set top box may be kept low so that the power consumption during standby, can wake up more quickly.

[0008] 为了达到上述目的,本发明是通过以下技术方案实现的: [0008] To achieve the above object, the present invention is achieved by the following technical solution:

[0009] 一种机顶盒,包括: [0009] A set top box, comprising:

[0010] 输入单元,用于接收多媒体信号;信号处理单元,用于处理所述多媒体信号;存储单元,用于存储所述多媒体信号和所述机顶盒系统运行所需的程序;输出单元,用于输出所述处理过的多媒体信号;中央处理单元,用于协调其他各个单元的正常工作; [0010] an input unit for receiving a multimedia signal; a signal processing unit for processing the multimedia signal; storage means for storing a program required for the multimedia signal and said set-top box operating system; output unit outputting said processed multimedia signal; central processing unit for coordinating the work of each of the other units;

[0011] 待机处理单元,用于在接收到待机信号后,关闭输出单元的电源;关闭信号处理单元的电源;关闭输入单元的电源;指令存储单元转入低功耗状态;指令中央处理单元转入低功耗状态;或 [0011] standby processing unit for receiving the standby signal, the power output device off; power off signal processing unit; off the power input unit; command storage means into a low power state; turn instruction central processing unit into the low power consumption state; or

[0012] 用于在接收到唤醒信号后,指令中央处理单元从低功耗状态转入正常工作状态; 指令存储单元从低功耗状态转入正常工作状态;开启输出单元的电源;开启信号处理单元的电源;开启输入单元的电源。 [0012] Upon receiving a wake-up signal instructing the central processing unit proceeds to the normal operation state from a low power state; instruction storage unit from a low power state into a normal operation state; turn on the power output unit; ON signal processing power supply unit; power on the input unit.

[0013] 一种机顶盒待机方法,所述机顶盒包括:输入单元,用于接收多媒体信号;信号处理单元,用于处理接收到的多媒体信号;存储单元用于存储所述多媒体信号和所述机顶盒的系统软件;输出单元,用于输出多媒体信号;中央处理单元,用于协调其他各个单元的工作; [0013] A set top box in standby method, the set-top box comprising: an input unit for receiving a multimedia signal; the signal processing unit receives for processing a multimedia signal; storage means for storing the multimedia signal and said set-top box system software; an output unit for outputting multimedia signal; central processing unit for coordinating the various other units;

[0014] 所述方法包括: [0014] said method comprising:

[0015] 在接收待机信号后, [0015] Upon receiving the standby signal,

[0016] 关闭输出单元的电源; [0016] Close power output unit;

[0017] 关闭信号处理单元的电源; [0017] The signal processing unit turn off the power;

[0018] 关闭输入单元的电源; [0018] off the power input unit;

[0019] 指令存储单元转入低功耗状态; [0019] The instruction memory unit into the low power consumption state;

[0020] 指令中央处理单元转入低功耗状态。 [0020] The central processing unit instructions into low power consumption state.

[0021] 一种机顶盒唤醒方法,所述机顶盒包括:输入单元,用于接收多媒体信号;信号处理单元,用于处理接收到的多媒体信号;存储单元用于存储所述多媒体信号和所述机顶盒系统运行所需的程序;输出单元,用于输出多媒体信号;中央处理单元(CPU),用于协调其他各个单元的工作; [0021] A set top box wake-up method, the set-top box comprising: an input unit for receiving a multimedia signal; the signal processing unit receives for processing a multimedia signal; storage means for storing the multimedia signal and said set-top box system needed to run the program; an output unit for outputting multimedia signal; central processing unit (CPU), to coordinate the work of other respective units;

[0022] 所述方法包括: [0022] said method comprising:

[0023] 在接收唤醒信号后, [0023] After receiving the wakeup signal,

[0024] 指令中央处理单元从低功耗状态转入正常工作状态; [0024] instructions from the central processing unit into the low power consumption state from the normal working state;

[0025] 指令存储单元从低功耗状态转入正常工作状态; [0025] The instruction memory unit from a low power state into a normal operation state;

[0026] 开启输出单元的电源; [0026] Turn on the power output unit;

[0027] 开启信号处理单元的电源; [0027] The signal processing unit is powered on;

[0028] 开启输入单元的电源。 [0028] Turn on the power input unit.

[0029] 本发明实施例提供的上述技术方案,在机顶盒待机时采用根据不同功能单元的特点确定是关断电源、还是使其进入低功耗状态,使机顶盒待机后既能快速唤醒,又能保持待机时较低的功率消耗。 Above technical solutions provided in the embodiments [0029] of the present invention, a set top box in standby determine whether power is turned off or placed in low power state according to the characteristics of different functional units of the set top box in standby after both fast wake-up, but while maintaining lower power consumption on standby.

附图说明 BRIEF DESCRIPTION

[0030] 图1为本发明的一个实施例中提供的机顶盒结构示意图; A schematic structure of the set-top box provided in Embodiment [0030] FIG. 1 of the present invention;

[0031] 图2为本发明的又一个实施例的结构示意图; [0031] FIG. 2 of the present invention and a schematic structural diagram of the embodiment;

[0032] 图3所示为本发明的又一个实施例的结构示意图; [0032] The present invention is shown in FIG. 3 is a further schematic structural diagram of the embodiment;

[0033] 图4为本发明的又一个实施例提供的DVB-C机顶盒的结构示意图; DVB-C structure and a set-top box according to an embodiment of [0033] FIG. 4 is a schematic view of the invention;

[0034] 图5为本发明又一个实施例提供的机顶盒待机方法流程示意图; [0034] FIG. 5 STB standby method provided a schematic diagram of another embodiment of the present invention;

[0035] 图6为本发明又一个实施例提供的机顶盒唤醒方法; [0035] FIG. 6 and a wake-top box according to an embodiment of the present method of the invention;

[0036] 图7为本发明又一个实施例提供的利用软件实现机顶盒待机和唤醒的一种应用实例的流程示意图; [0036] FIG. 7 a further embodiment provided with software implementation process schematic top box and a standby example of an application of the present invention, the wake-up;

具体实施方式 Detailed ways

[0037] 本发明实施例在机顶盒待机时采用根据不同功能模块的特点确定是关断电源、还是使其进入低功耗状态,使机顶盒既能快速唤醒,又能保持待机时较低的功率消耗。 [0037] The embodiment of the invention uses the power is off and the power is determined, it is a low power state according to the characteristics of different functional modules in the set-top box in standby, so that both fast wake-top box, a lower consumption of standby time while maintaining .

[0038] 图1为本发明的一个实施例提供的机顶盒结构示意图,所述机顶盒包括输入单元101,用于接收多媒体信号;信号处理单元102,用于处理接收到的多媒体信号;存储单元104用于存储所述多媒体信号和所述机顶盒系统运行所需的程序;输出单元103,用于输出多媒体信号;中央处理单元105,用于协调其他各个单元的工作; [0038] Fig 1 a schematic structural diagram of the embodiment set-top box, the set-top box 101 includes an input unit for receiving a multimedia signal of the present invention; multimedia signal processing unit 102 for processing received; storage unit 104 with required to store the multimedia signal and said set-top box system program running; output unit 103 for outputting a multimedia signal; central processing unit 105, for each of the other units of coordination;

[0039] 还包括待机处理单元106,用于在接收到待机信号后,关闭输出单元的电源;关闭信号处理单元的电源;关闭输入单元的电源;指令存储单元转入低功耗状态;指令中央处理单元转入低功耗状态。 [0039] The processing unit 106 further comprises a stand, for, after receiving the standby signal, the power output device off; power off signal processing unit; off the power input unit; command storage means into a low power state; instructions from the central The processing unit proceeds to low power consumption state. or

[0040] 在接收到唤醒信号后,在接收唤醒信号后,指令中央处理单元从低功耗状态转入正常工作状态;指令存储单元从低功耗状态转入正常工作状态;开启输出单元的电源;开启信号处理单元的电源;开启输入单元的电源。 [0040] Upon receiving the wake-up signal after receiving the wake-up signal instructing the central processing unit proceeds to the normal operation state from a low power state; instruction storage unit from a low power state into a normal operation state; turn on the power output unit ; turn on the power of the signal processing unit; power on the input unit.

[0041] 在本实施例中,在机顶盒待机时,输入单元、信号处理单元和输出单元可以不工作,因此待机时可以完全中断输入单元、信号处理单元和输出单元与相应的电源供应单元之间的电气连接(为了保持图形清晰,机顶盒各个单元的电源供应单元没有画于图中,但本领域普通技术人员是可以理解电源供应单元与本发明实施例机顶盒的各单元的关系的),为了描述方便,本发明实施例称为关闭输入单元、信号处理单元和输出单元的电源,后面也将采用类似的表达方式。 [0041] In the present embodiment, when the standby set-top box, an input unit, a signal processing unit and the output unit may not work, it is possible to completely interrupt the standby input unit, between the signal processing unit and the output unit corresponding to the power supply unit electrical connections (in order to maintain graphical clarity, the power supply unit of each unit set-top box is not drawn in the figures, those of ordinary skill in the art can understand the relationship of each unit according to the set top box of the embodiment of the power supply unit of the present invention), to describe convenience, referred to as embodiment off the power input unit, a signal processing unit and the output unit of the embodiment of the present invention, the latter will also use a similar expression. 为了使得机顶盒在收到唤醒信号后能够快速唤醒,存储单元和中央处理单元可以进入低功耗状态,在低功耗状态下,存储单元和中央处理单元处于省电模式。 In order to enable the STB to wake up quickly after receiving the wake-up signal, a storage unit and a central processing unit may enter a low power state, in a low power state, a storage unit and a central processing unit in the power saving mode. 待机处理单元需要保持供电状态,以便处理待机或唤醒事件。 Standby processing unit needs to remain powered, so that the processing standby or wake-up event.

[0042] 图2为本发明的又一个实施例的结构示意图,在图1所示机顶盒的基础上增加外部控制单元107,用于向待机处理单元发送控制信号,包括待机信号和唤醒信号,外部控制单元可以是红外遥控器,键盘,鼠标,触摸屏等。 [0042] The schematic structure of still another embodiment of the present invention, FIG. 2, the increase in the set-top box shown in Figure 1 based on the external control unit 107 for transmitting control signals, including standby and wake-up signal to the standby signal processing unit, an external The control unit may be an infrared remote control, keyboard, mouse, touch screen. 外部控制单元可以始终保持供电,以便随时可以发出待机或唤醒信号。 The external control unit may remain powered, so that at any time with a standby signal or wake-up. 其他各单元与前面的实施例相同。 Each of the other units in the previous embodiment.

[0043] 图3所示为本发明的又一个实施例的结构示意图,在图1所示机顶盒的基础上增加定时单元108,用于计时,并在预定的时刻到来时,产生第一内部时钟中断信号作为待机信号或产生第二内部时钟中断信号作为唤醒信号,并将待机信号或唤醒信号发送给待机处理单元106。 [0043] FIG. 3 shows the present invention in a schematic structural diagram of another embodiment, FIG. 1 on the basis of the increase in the set top box 108 on the timing unit for timing, and when a predetermined time comes, generate a first internal clock a standby signal or an interrupt signal is generated as the second internal clock signal as a wake-up interrupt signal, and a standby signal or wake-up signal to the standby processing unit 106. 用户可以设定具体的时刻,在该时刻到来时机顶盒自动待机,在待机后自动唤醒。 The user can set a specific time, the set top box automatically arrives at the standby time, automatically wake up after waiting. 当用户设定时间后,定时单元108开始计时,并在用户指定的时间到来时发送待机信号或唤醒信号给待机处理单元106,待机处理单元106接收待机信号或唤醒信号后,启动相应的待机或唤醒功能。 When the time set by the user, the timing unit 108 to start timing, and transmits a standby signal when the user specifies the time comes to a standby or wake signal processing unit 106, the standby processing unit 106 receives a standby signal or wake-up signal, start the corresponding standby or wake-up function.

[0044] 以上所述的待机处理单元或定时单元,在实际运用时,可以跟中央处理单元(Central Process Unit, CPU)单元集成在在一起;或者也可以由CPU单元执行相应的功能。 [0044] The above-described standby processing unit or timing unit, in practical use, it is possible with a central processing unit (Central Process Unit, CPU) unit is integrated together; or the corresponding function may be executed by the CPU unit. 本发明实施例涉及的机顶盒,可以包括卫星数字电视机顶盒(DVB-S)、地面数字电视机顶盒(DVB-T)和数字有线电视机顶盒(DVB-C)。 Example embodiments set top box according to the present invention, may include a satellite digital television set-top boxes (DVB-S), terrestrial digital TV set-top box (DVB-T) and a digital cable box (DVB-C).

[0045] 图4为本发明的又一个实施例提供的DVB-C机顶盒的结构示意图,是图2所示机顶盒的一个应用实施例。 [0045] FIG. 4 is a schematic view of the invention according to the set top box DVB-C provides a further embodiment, the embodiment is shown in FIG 2 a set-top box application.

[0046] 如图4所示,机顶盒的输入单元101包括调谐和解调器。 [0046] As shown, the input unit 101 the set top box includes a tuner and a demodulator 4. 由于DVB的信道编码是采用RS(Reed-Solomon)码卷积交织方式,调制则采用64QAM(Quadrature amplitude modulation,正交幅度调制)方式,因此机顶盒的调谐器和解调器必须要完成QAM解调、RS 解码和解交织(纠错处理)的过程,信号经过QAM解调和信道解码后,将以传送流(TS流) 的形式送到下级模块进行解复用处理。 Since the channel coding is the use of DVB RS (Reed-Solomon) code is convolutional interleaved manner, using the modulation 64QAM (Quadrature amplitude modulation, quadrature amplitude modulation) mode, so the set top box tuner and demodulator QAM demodulator must be completed , RS decoding and de-interleaving (error correction process) of the process, the signal after the QAM demodulation and channel decoding, will be in the form of transport stream (TS stream) to the lower module demultiplexing process.

[0047] 信号处理单元102包括解复用器、解码器、编码器、音频D/A模块。 [0047] The signal processing unit 102 includes a demultiplexer, a decoder, an encoder, an audio D / A module. 解复用器接收传送流数据,对数据进行解复用后,形成音频PES(ftx) EvolutionSoccer)格式数据和视频PES格式数据,并将音频PES数据和视频PES数据直接送给解码器进行解码。 The demultiplexer receives the transmission data stream, the demultiplexed data, forming an audio PES (ftx) EvolutionSoccer) format data and format the video PES data and audio PES and video PES data directly to the decoder for decoding. 解码器它输出两组信号,一组为送给视频编码器的数字视频信号,另一组为送给音频数模转换的PCM(Pulse CodeModulation,脉码调制录音)格式的数字音频信号。 It sets the output signal of the decoder, is set to the video encoder of the digital video signal, the other group to the digital-analog conversion of audio PCM (Pulse CodeModulation, audio pulse code modulation) digital audio signal format. CPU单元提取解码后相应的音频PES数据和视频PES数据并发送给视频编码器和音频数模模块。 After the CPU unit extracts a corresponding decoded audio PES and video PES and sends video data and audio encoder die module. 视频编码器将已解码的数字信号转换为模拟电视信号,这些信号经过视频滤波单元送到电视机的A/V插口上进行播放。 Video encoder decoded digital television signal into an analog signal for playback on a video signal through the filter unit to a television set A / V jacks. 音频数模转换模块将已解码的数字PCM数据转换成立体声模拟信号,经过音频放大单元的放大输出到电视机的音频接口进行播放。 Audio converter module the decoded data is converted into digital PCM stereo analog signal, amplified through an audio amplifier output to a television audio playback unit interface.

[0048] 输出单元103包括上述的视频滤波单元和音频放大单元;存储单元104包括有随机存储器RAM、只读存储器ROM和非易失性存储器,用于提供机顶盒系统运行时所需的存储空间以及用于存储多媒体信号;外部控制单元107,用于实现对机顶盒的控制,例如发出待机或唤醒信号。 [0048] The output unit 103 includes the above-described video filter element and audio amplification unit; storage unit 104 includes a random access memory RAM, read only memory ROM and a nonvolatile memory, the set top box for providing the desired system operation and storage for storing multimedia signal; external control unit 107, for implementing the control of the set top box, for example with a standby signal or wake-up.

[0049] 待机处理单元106用于在接收到外部控制单元107发送的待机信号后,关闭输出单元103内各器件的电源,关闭信号处理单元102内各器件的电源,关闭输入单元101内各器件的电源,指令存储单元104内的各存储器件转入低功耗状态,指令中央处理单元105转入低功耗状态。 [0049] The processing unit 106 for standby after receiving the standby signal sent by the external control unit 107, power off individual devices within the output unit 103, the power supply of each device in the signal processing unit 102 is closed, closing the devices within the input unit 101 power supply, each memory device within the instruction storage unit 104 into a low power state, the instruction central processing unit 105 into a low power state. or

[0050] 在接收到外部控制单元107发送的唤醒信号后,指令中央处理单元105从低功耗状态转入正常工作状态;指令存储单元104内的各存储器从低功耗状态转入正常工作状态;开启输出单元103内各器件的电源;开启信号处理单元102各器件的电源;开启输入单元101的电源。 [0050] Upon receiving the wake-up signal transmitted from the external control unit 107, the instruction 105 into the low power consumption state from the normal working state of the central processing unit; instructions stored within each memory cell 104 into a low power state from the normal working state ; turn on the power of each device in the output unit 103; power-on signal processing unit 102 of each device; turn on the power input unit 101.

[0051] 以上本发明实施例提供的机顶盒,能够在待机时采用根据不同功能模块的特点确定是关断电源、还是使其进入低功耗状态,使机顶盒既能快速唤醒,又能保持待机时较低的功率消耗,该机顶盒具有如下优点: When the set-top box provided in [0051] the above embodiment of the present invention, can be employed to determine the power is turned off or placed in low power state, the set-top box according to the characteristics of both fast wake-up of the different functional modules in standby, but remains in standby lower power consumption, the set-top box has the following advantages:

[0052] (1)节能降耗,由于本发明在保持较快速度重新启动的同时,大幅降低了待机时的功率消耗,因此能起到很好的节能降耗效果。 [0052] (1) energy saving, since the present invention is a faster rate while maintaining the restart, significantly reducing the power consumption during standby, and therefore can play a good energy saving effect.

[0053] (2)低发热、低辐射。 [0053] (2) low heat, low emissivity. 这也是由于待机时关断了机顶盒内大部分用电器件和模块, 耗电减少,所以发热减少、辐射降低。 This is because most of the power devices turned off and the set-top box module standby, reduced power consumption, thus reducing the heat radiation is reduced.

[0054] (3)提升器件和整机的预期使用寿命。 [0054] (3) lifting device and the expected life of the machine. 由于在待机状态大部分器件处于未上电状态,器件和功能块的损耗降低,从而增加了整机的预期使用寿命。 Since most of the device is in the standby state unpowered state, loss of the device and the functional blocks is reduced, thereby increasing the expected life of the machine.

[0055] 图5为本发明又一个实施例提供的机顶盒待机方法流程示意图,所述机顶盒包括输入单元、信号处理单元、输出单元、中央处理单元和存储单元,这些单元模块的功能与图1 所示的机顶盒相同,该待机方法包括: [0055] FIG. 5 another schematic flowchart of a method of waiting the set top box according to an embodiment of the present invention, the set-top box comprises an input unit, a signal processing unit, an output unit, a central processing unit and a storage unit, these units function modules of FIG. 1 shown in the same set-top box, the stand comprising:

[0056] 501、接收待机信号; [0056] 501, receiving a standby signal;

[0057] 这里的待机信号,可以是机顶盒内部信号如内部时钟中断信号,也可以是外部控制信号。 [0057] where the standby signal STB may be an internal clock signal as an internal interrupt signal may be an external control signal. 内部时钟中断信号可以实现定时待机的功能,即使用者可以为机顶盒设定一个预定的时间,当预定的时刻到来后机顶盒内部产生时钟中断信号作为待机信号。 Internal clock timer interrupt signal may be implemented standby function, i.e., the user can set a predetermined time set top box generates a clock after a predetermined time comes when the internal interrupt signal as the standby signal STB. 外部控制信号例如由机顶盒遥控器发出的红外控制信号或由键盘、鼠标、触摸屏等发出的待机控制信号,还可以是网络信号,例如通过网络发送一个数据包来实现待机指令,这时候的机顶盒支持上网功能;外部控制信号还可以是数字有线遥控信号。 An external control signal such as infrared emitted by the set-top box remote control signal or the standby control signal sent from the keyboard, mouse, touch screen, etc., may also be a network signal, such as sending a packet through the network to implement a standby instruction, a set top box to support this time Internet access; external control signal may be a digital cable remote control signal.

[0058] 502、关闭输出单元的电源;[0059] 这里的输出单元,用于输出多媒体信号,例如视频信号,音频信号。 [0058] 502, turn off the power output unit; [0059] where an output unit for outputting multimedia signals, such as video signals, audio signals. 由于输出单元在待机的时候不需要工作,可以停止对输出单元的供电,使输出单元停止输出多媒体信号, 以节省待机时的功率消耗。 Since the output of the standby unit does not need to work, they can stop the power supply to the output unit, the output unit stops outputting the multimedia signals, a power-saving standby time of consumption.

[0060] 503、关闭信号处理单元的电源; [0060] 503, turn off the power of the signal processing unit;

[0061] 信号处理单元是用来处理机顶盒接收到的多媒体信号,例如对接收到的多媒体信号进行处理后再输出,如对视频信号进行解调解码再进行编码,对音频信号进行数模转换等。 [0061] The signal processing unit is a set-top box for processing the received multimedia signals, for example, the received multimedia signal is processed and then output, such as demodulation and decoding a video signal before encoding, the audio signal digital-analog conversion, etc. . 在待机的时候,信号处理单元可以不工作,因此信号处理单元的电源可以完全关断(即中断信号处理单元与相应的电源之间的电气连接),以节省待机时的功率消耗。 When the standby signal processing unit may not work, so the power of the signal processing unit may be completely turned off (i.e., interrupt the electrical connection between the signal processing unit and the corresponding power), when a power saving standby consumption.

[0062] 504、关闭输入单元的电源; [0062] 504, turn off the power input unit;

[0063] 处于待机时,机顶盒可以不接收信号,因此输入单元的电源也可以完全关断,以节省待机时的功率消耗。 [0063] While in standby, the set top box may not receive signals, so the power input unit may be completely turned off, when a power saving standby consumption.

[0064] 505、指令存储单元转入低功耗状态,所述存储单元用于存储所述多媒体信号和所述机顶盒的系统软件,提供机顶盒运行时所需的存储空间; [0064] 505, instruction memory unit into the low power consumption state, the storage unit for storing the multimedia signal and said set-top box software, the set-top box to provide the required run-time memory space;

[0065] 由于存储单元存储有机顶盒的系统软件,如果完全关掉电源,需要唤醒的时候将会增加启动时间,因此为了能够快速唤醒,存储单元可以进入低功耗状态,以便在唤醒的时候可以快速加载系统。 [0065] Since the storage unit stores a set-top box software, turn off the power if at all, need to wake up when the start-up time will be increased, so to be able to quickly wake up, the storage unit may enter a low power state, to be awakened when rapid loading system.

[0066] 506、指令中央处理单元转入低功耗状态,所述中央处理单元用于协调其他各个单元的工作。 [0066] 506, a central processing unit instructions into low power consumption state, the central processing unit for coordinating the various other units.

[0067] 待机时,中央处理单元协调好各个单元工作之后,也进入低功耗状态,以进一步节省用电。 After [0067] Standby, the central processing unit to coordinate the work of the respective units, but also a low power state, in order to further save electricity.

[0068] 可见,本发明实施例一提供得机顶盒待机方法,在待机时,根据各个单元的不同功能分别对部分单元进行关闭电源,最大限度地减少待机时的功率消耗,实现节能,对存储单元控制进入低功耗状态,能够在需要唤醒时,快速加载系统,保持较快的唤醒时间。 [0068] visible, set-top box according to a first method to obtain a standby embodiment of the present invention, in standby, according to the different functions of the units are part of the unit power is turned off to minimize power consumption during standby, saving energy, the memory cell control enters a low power state, able to wake up when needed, fast loading system, maintain a rapid wake-up time.

[0069] 图6为本发明又一个实施例提供的机顶盒唤醒方法,与图5所示的机顶盒待机方法相应。 [0069] FIG. 6 and a set-top box according to an embodiment of the present invention wakeup method, the set top box in standby method shown in FIG. 5 corresponds. 该方法包括: The method comprising:

[0070] 601、接收唤醒信号; [0070] 601, received wake-up signal;

[0071] 这里的唤醒信号,可以是机顶盒内部信号如内部时钟中断信号,也可以是外部控制信号。 [0071] where the wake-up signal may be a set-top box, such as the internal clock signal an internal interrupt signal may be an external control signal. 内部时钟中断信号可以实现定时唤醒的功能,即使用者可以为机顶盒设定一个预定的时间,当预定的时刻到来后机顶盒内部产生时钟中断信号作为唤醒信号。 The internal clock signal may be implemented timed wake-interrupt function, i.e., the user can set a predetermined time for the set-top box, the set top box generates the internal time has come when a predetermined clock signal as a wake-up interrupt signal. 外部控制信号例如由机顶盒遥控器发出的红外控制信号或由键盘、鼠标、触摸屏等发出的待机控制信号,还可以是网络信号,例如通过网络发送一个数据包来实现唤醒指令,这时候的机顶盒支持上网功能;外部控制信号还可以是数字有线遥控信号。 An external control signal such as infrared emitted by the set-top box remote control signal or the standby control signal sent from the keyboard, mouse, touch screen, etc., may also be a network signal, such as sending a packet through the network to implement the wake up command, set-top box to support this time Internet access; external control signal may be a digital cable remote control signal.

[0072] 602、指令中央处理单元从低功耗状态转入正常工作状态; [0072] 602, instructions from the central processing unit into the low power consumption state from the normal working state;

[0073] 当接收到唤醒信号后,中央处理单元首先需要从低功耗状态进入正常工作状态, 以便协调其他各个单元的工作。 [0073] Upon receipt of the wake-up signal, the central processing unit firstly need to enter the normal operating state from a low power state, in order to coordinate the work of other respective units.

[0074] 603、指令存储单元从低功耗状态转入正常工作状态; [0074] 603, instruction memory unit into the low power consumption state from the normal working state;

[0075] 中央处理单元需要从存储单元加载系统,因此存储单元需要从低功耗状态进入正常状态,以便用于存储接收到的多媒体信号以及提供系统运行过程中必要的存储空间。 [0075] The central processing unit needs to be loaded from the storage unit system, the memory cells need to enter the normal state from the low power state, in order for storing the received multimedia signals and to provide the necessary operation of the system during storage.

[0076] 604、开启输出单元的电源; [0076] 604, turning on the power output unit;

8[0077] 为了能够让用户在唤醒后看到电视画面,需要开启机顶盒的输出单元,以输出多媒体信号用以显示。 8 [0077] In order to enable the user to see the TV screen after wake-up, set-top box need to open the output unit to output the multimedia signals for display.

[0078] 605、开启信号处理单元的电源; [0078] 605, turn on the power of the signal processing unit;

[0079] 开启信号处理单元的电源,使得信号处理单元能够继续处理多媒体信号,以提供给输出单元。 [0079] The signal processing unit turn on the power, so that the signal processing unit to continue processing the multimedia signals to be supplied to the output unit.

[0080] 606、开启输入单元的电源。 [0080] 606, turning on the power input unit.

[0081] 开启输入单元的电源,以便于接收电视节目等多媒体信号,并发送给信号处理单元处理。 [0081] Turn on the power input unit, so as to receive television programs and other multimedia signals, sent to the signal processing unit.

[0082] 可见,本发明实施例提供的机顶盒唤醒方法,根据各个单元的不同功能分别对部分单元进行开启电源,控制存储单元转入正常工作状态,能够快速加载系统,保持较快的唤醒时间。 [0082] visible, wake-top box according to an embodiment the method of the present invention, depending on the functions of the units are part of the power unit is turned on, the control unit memory into the normal working condition, the system can quickly load, holding fast wake-up time.

[0083] 本发明的再一个实施例提供了机顶盒待机方法的一种具体应用例子,该方法可以在图4所示的DVB-C机顶盒上实施。 [0083] A further embodiment of the present invention there is provided a method for the specific set top box in standby application example, the method may be implemented on set-top box DVB-C shown in FIG. 该待机方法包括: The Standby method comprising:

[0084] (1)接收待机信号; [0084] (1) receives a standby signal;

[0085] (2)关闭解复用器、解码器、视频编码器、音频D/A单元、调谐和解调器、视频滤波器、音频放大器、按键和显示面板、智能卡模块的电源; [0085] (2) off a demultiplexer, a decoder, a video encoder, an audio D / A unit, a tuner and a demodulator, a video filter, audio amplifier, and a display panel keys, the smart card module, a power source;

[0086] 在待机时,以上各功能模块不需要工作,可以完全关闭电源。 [0086] In standby, the above functional modules do not need to work, you can turn off the power completely. 除此以外,还可以把外围的分立器件的电源也关闭,例如LED指示灯等。 In addition, the power may also be discrete components also closed periphery, such as LED lights. 关闭电源的顺序不限。 Any power off sequence.

[0087] (3)随机存储器RAM、非易失性存储器、只读存储器ROM和CPU均进入低功耗状态。 [0087] (3) a random access memory RAM, a nonvolatile memory, a ROM and a CPU are low-power state. RAM是机顶盒系统运行时必须的器件,不能关闭电源,但可以进入低功耗状态。 RAM device must be set-top box system is running, the power can not be closed, but can be a low power state. 例如可以控制SDRAM进入自刷新(self Refresh态),这时仅有2mA左右的电流。 SDRAM may be controlled, for example, self-refresh (self Refresh state), only a current of about 2mA time. 使其既能保持数据又消耗很低的功率。 It can maintain the data and the power consumption is very low. 非易失性存储器,例如FLASHR0M可以进入待机状态,在此模式下的电流仅5uA左右,也可以完全关闭电源。 Non-volatile memory, e.g. FLASHR0M may enter the standby state, the current in this mode only about 5uA, power may be turned off completely. 只读存储器如EEPROM进入待机状态,在此模式下的电流仅5uA左右,这样可以节省待机时的功耗,也可以完全关闭电源。 A read only memory such as an EEPROM enters the standby state, the current in this mode only about 5uA, this can save the power consumption during standby, the power supply may be completely closed. 通常CPU进行过逻辑优化,有自己的待机状态,在进入待机时CPU也处于待机状态。 CPU logic optimization is usually carried out, it has its own standby state, the standby CPU when entering a standby state also.

[0088] (4) IR红外接收头保持供电状态,以接收遥控器发来的外部唤醒信号。 [0088] (4) IR infrared receiver remains powered state, to receive a remote wake-up signal sent to the external.

[0089] 相应地唤醒方法包括: [0089] Accordingly wake-up method comprising:

[0090] (1)接收唤醒信号; [0090] (1) receiving a wake up signal;

[0091] (¾ CPU、存储器SDRAM、存储器Flash、存储器EEPROM从低功耗状态转入正常工作状态;若存储器Flash或存储器EEPROM在待机时是关闭电源的,则此时要开启存储器Flash或存储器EEPROM的电源。 [0091] (¾ CPU, memory SDRAM, Flash memory, EEPROM memory from a low power state into a normal operation state; if memory EEPROM or Flash memory at the time of standby power is turned off, the memory at this time to open or Flash EEPROM memory power supply.

[0092] (3)开启解复用器、解码器、视频编码器、音频D/A单元、调谐和解调器、视频滤波器、音频放大器、按键和显示面板、智能卡模块的电源。 [0092] (3) open the demultiplexer, a decoder, a video encoder, an audio D / A unit, a tuner and a demodulator, a video filter, audio amplifier, and a display panel keys, the smart card module's power. 开启电源的顺序不限。 Any order of the power-on.

[0093] (4) IR红外接收头保持供电状态,以接收遥控器发来的外部待机信号。 [0093] (4) IR infrared receiver remains powered state, to receive a remote control signal sent to the external standby.

[0094] 以上以DVB-C机顶盒为例,如果是DVB-S机顶盒,只要把DVB-C机顶盒的引入线、 调谐和解调器换为相应的DVB-S天线、DVB-S调谐和解调器就可以了,待机和唤醒方法同前,这里不再赘述。 [0094] In the above DVB-C STB as an example, if set-top box DVB-S, DVB-C as long as the inlet STB, the tuner and the demodulator replaced the corresponding antenna DVB-S, DVB-S tuning and demodulating is on it, standby and wake up with the former, not repeat them here. 同样的,如果是IPTV机顶盒,把DVB-C机顶盒的引入线、调谐和解调器换为相应的IPTV引入线、IPTV调谐和解调器就可以了。 Similarly, if it is IPTV set-top box DVB-C of the inlet, the tuner and the demodulator replaced respective inlet IPTV, IPTV tuner and the demodulator on it. 本发明实施例提供的机顶盒待机方法和唤醒方法,除用于上述DVB-C,DVB-S, IPTV机顶盒外,还可用于需要进行待机低功耗处理的其他各种机顶盒和多媒体处理设备,包括但不限于游戏机顶盒、移动电视等用电设备。 And various other set-top box STB standby multimedia processing apparatus and method for wake-up method according to an embodiment of the present invention, except for the above-described DVB-C, DVB-S, IPTV set-top box, but also for low-power standby processing is required, comprising but not limited to the game set-top box, mobile TV and other electrical equipment.

[0095] 以上机顶盒待机/唤醒方法,可以用编写成软件代码实现,该软件代码可以存储于一计算机可执行的非易失性存储介质如CDR0M,硬盘中。 [0095] The above set-top box in standby / wake-up method, can be implemented using software code written to, the software codes may be stored in the nonvolatile storage medium such as a computer-executable CDR0M, the hard disk.

[0096] 以上机顶盒待机/唤醒方法,也可以通过硬件电路来实现。 [0096] than the set top box in standby / wake-up method, it may be implemented by a hardware circuit. 待机时可以用MOSFET(金属氧化物半导体场效应管)关断各功能单元的电源,使得该电源相应的支路在待机时不消耗电源功率或消耗较小的功率。 May be a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) turn off the power of each functional unit is standby, the power supply such that the respective branch does not consume power or standby power consumes less power. 例如可以选用RDS(。n)(导通电阻)较低的M0STFET,以防止在通过较大电流时在MOSFET上产生过大的压降。 Can be selected, for example, RDS (.n) (ON resistance) lower M0STFET, to prevent excessive pressure drop in a large current through the MOSFET. 控制栅极的电压高低就可以控制MOSFET的源漏支路的导通和关断,控制漏源支路所有的电源开启或关闭。 Gate control voltage level can control the MOSFET source and drain branch turned off, the drain-source control all the branches of the power on or off.

[0097] 如图7为本发明又一个实施例提供的利用软件实现机顶盒待机和唤醒的一种应用实例的流程示意图,收到待机信号后包括以下步骤: [0097] FIG. 7 a further embodiment using software provided by the schematic flow diagram of an application example of the set top box in standby and wake-up implementation of the present invention, upon receipt of the standby signal comprising the steps of:

[0098] 701、保存当前频点,关闭视频模块,关闭音频模块。 [0098] 701, save the current frequency point, the video module off, turn off the audio module. 这里的视频模块可以是图4所示机顶盒中的解复用器、解码器、视频编码器、视频滤波单元等用来处理视频信号的单元, 音频模块包括音频数模转换单元和音频放大单元等用来处理音频信号的单元。 Here the video module may be a set-top box shown in FIG demultiplexer, the decoder, a video encoder, a video unit, etc. filtering unit 4 for processing a video signal, an audio module includes an audio digital to analog conversion unit and the audio amplification unit, etc. means for processing an audio signal.

[0099] 702、关闭调谐模块电源,关闭LED电源。 [0099] 702, the tuning module power off, power off the LED. 调谐模块包括调谐和解调器。 Tuning module includes a tuner and a demodulator.

[0100] 步骤701、702具体包括:在接收到待机信号后,保存当前频点,停止视频显示,清除视频显存,关闭视频模块,关闭音频模块,关闭调谐模块电源,关闭led模块; [0100] Step 701 and 702 comprises: after receiving the standby signal, save the current frequency point, stopping the video display, clear the video memory, the video module off, turns off the audio module, the tuning module power off, led off module;

[0101] 703、指令存储器进入低功耗状态,中央处理器进入待机模式,等待唤醒信号; [0101] 703, the instruction memory into a low power state, the central processor enters the standby mode, waiting for a wakeup signal;

[0102] 704、在收到唤醒信号后,使能调谐模块电源,根据保存的锁点来锁定调谐模块,使能led模块; [0102] 704, after receiving the wake-up signal, the power enable tuning module, the tuning module to lock the lock point according to the stored enable led module;

[0103] 步骤703、704具体包括:保存当前程序状态寄存器标志;设置当前程序状态寄存器标志为禁止中断响应;保存矢量中断控制器的使能中断寄存器标志;设置矢量中断控制器的使能中断寄存器标志为只使能红外、实时时钟或按键中断;判断先进高性能总线是否为空闲状态: [0103] Step 703, 704 comprises: saving the current program status register flags; Current Program Status Register set flags to prohibit interrupts; save vector interrupt controller interrupt enable flag register; provided vectored interrupt controller interrupt enable register IR flag is only enabled, real-time clock or the key interrupt; determine whether advanced high-performance bus idle state:

[0104] 如果为非空闲状态,继续等待先进高性能总线为空闲状态;如果为空闲状态,继续执行下面操作: [0104] If the non-idle state continues to wait for advanced high-performance bus is idle; if the idle state continues performing the following operations:

[0105] 设置中央处理器的系统控制器进入待机模式; [0105] The system provided a central processor enters the standby mode controller;

[0106] 设置同步动态存储器进入自刷新模式; [0106] provided a synchronous dynamic memory to enter self-refresh mode;

[0107] 调用等待中断指令,让中央处理停止运行; [0107] call waiting interrupt instruction, so that the central processing stops running;

[0108] 判断是否有红外、实时时钟和按键中断: [0108] determine whether there is infrared, real-time clock and key interrupt:

[0109] 如果为无中断发生,继续等待红外、实时时钟和按键中断发生; [0109] If no interruption occurs, continue to wait infrared, real-time clock and key interrupt occurs;

[0110] 如果为有中断发生,使中央处理器进入正常工作模式,继续执行下面操作: [0110] If an interrupt occurs, the central processor enters the normal operating mode, proceed to the following actions:

[0111] 设置同步动态存储器进入正常工作模式; [0111] synchronous dynamic memory is provided into the normal operating mode;

[0112] 恢复矢量中断控制器的使能中断寄存器标志; [0112] Recovery vectored interrupt controller interrupt enable flag register;

[0113] 恢复当前程序状态寄存器标志; [0113] restore the current program status register flags;

[0114] 705、使能音频模块,使能视频模块。 [0114] 705, enabling the audio module, the video module is enabled.

[0115] 步骤705具体包括:使能led模块;使能timer模块电源;锁定频点;使能视频模块;使能音频模块。 [0115] Step 705 comprises: enabling led module; Enable timer module power; lock frequencies; enable video module; Enable audio module.

[0116] 以上本发明实施例提供的机顶盒待机方法和唤醒方法及其机顶盒,在机顶盒待机时采用根据不同功能模块的特点确定是关断电源、还是使其进入低功耗状态,使机顶盒既能快速唤醒,又能保持待机时较低的功率消耗,具有如下有益效果: [0116] the above embodiment of the present invention a set top box in standby and wake-up method and the method provided in the set top box, is determined using the power is turned off or placed in low power state according to the functional characteristics of the different modules in the set-top box in standby, so that both the set top box fast wake-up, while maintaining a low standby power consumption when, has the following advantages:

[0117] (1)节能降耗,由于本发明在保持较快速度重新启动的同时,大幅降低了待机时的功率消耗,因此能起到很好的节能降耗效果。 [0117] (1) energy saving, since the present invention is a faster rate while maintaining the restart, significantly reducing the power consumption during standby, and therefore can play a good energy saving effect.

[0118] (2)低发热、低辐射。 [0118] (2) low heat, low emissivity. 这也是由于待机时关断了机顶盒内大部分用电器件和模块, 耗电减少,所以发热减少、辐射降低。 This is because most of the power devices turned off and the set-top box module standby, reduced power consumption, thus reducing the heat radiation is reduced.

[0119] (3)提升器件和整机的预期使用寿命。 [0119] (3) lifting device and the expected life of the machine. 由于在待机状态大部分器件处于未上电状态,器件和功能块的损耗降低,从而增加了整机的预期使用寿命。 Since most of the device is in the standby state unpowered state, loss of the device and the functional blocks is reduced, thereby increasing the expected life of the machine.

[0120] 以上所述,仅为本发明的具体实施方式的列举,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换或等同,都应涵盖在本发明的保护范围之内。 [0120] The above are only specific embodiments of the present invention include, but the scope of the present invention is not limited thereto, any skilled in the art in the art within the scope of the invention disclosed can be easily thought or equivalent variations or replacements shall fall within the protection scope of the present invention.

Claims (9)

1. 一种机顶盒,其特征在于,包括:输入单元,用于接收多媒体信号;信号处理单元,用于处理所述多媒体信号;存储单元,用于存储所述多媒体信号和所述机顶盒系统运行所需的程序;输出单元,用于输出所述处理过的多媒体信号;中央处理单元,用于协调其他各个单元的正常工作;待机处理单元,用于在接收到待机信号后,关闭输出单元的电源;关闭信号处理单元的电源;关闭输入单元的电源;指令存储单元转入低功耗状态;指令中央处理单元转入低功耗状态;或用于在接收到唤醒信号后,指令中央处理单元从低功耗状态转入正常工作状态;指令存储单元从低功耗状态转入正常工作状态;开启输出单元的电源;开启信号处理单元的电源;开启输入单元的电源。 A set-top box, which is characterized in that, comprising: an input unit for receiving a multimedia signal; a signal processing unit for processing the multimedia signal; storage means for storing the multimedia signal and said set-top box system operation required procedures; an output unit for outputting said processed multimedia signal; central processing unit for coordinating the various other work units; standby processing unit, for, after receiving the standby signal, the power supply unit turns off the output ; turn off the power of the signal processing unit; off the power input unit; command storage means into a low power state; instruction central processing unit into the low power state; or a wake-up signal after receiving the instruction from the central processing unit low power consumption state becomes normal operation state; instruction storage unit from a low power state into a normal operation state; turn on the power output unit; turn on the power of the signal processing unit; power on the input unit.
2.根据权利要求1所述的机顶盒,其特征在于,还包括:外部控制单元,用于向待机处理单元发送外部控制信号,所述外部控制信号包括所述待机信号或所述唤醒信号。 2. The set-top box according to claim 1, characterized in that, further comprising: an external control unit, for transmitting a standby control signal to the external processing unit, the external control signal includes a standby signal or the up signal.
3.根据权利要求1所述的机顶盒,其特征在于,还包括:定时单元,用于计时并在预定的时刻到来时,产生第一内部时钟中断信号作为所述待机信号或产生第二内部时钟中断信号作为所述唤醒信号,并将所述待机信号或所述唤醒信号发送给所述待机处理单元。 3. The set-top box according to claim 1, characterized in that, further comprising: a timing unit for timing and when a predetermined time comes, generate a first internal clock signal as the standby interrupt signal or the second internal clock generating wake-up signal as the interrupt signal, and the standby signal or a wake-up signal to the standby processing unit.
4.根据权利要求1所述的机顶盒,其特征在于,所述输入单元包括:调谐和解调器,用于接收多媒体信号并对接收的多媒体信号进行解调和信道解码得到传送流数据;所述信号处理单元包括解复用器、解码器、编码器、音频数模转换模块,解复用器接收传送流数据,对数据进行解复用后,形成音频数据和视频数据,并将音频和视频数据发送给解码器进行解码,解码器输出两组信号,一组为送给视频编码器的数字视频信号,另一组为送给音频数模转换模块的脉码调制录音PCM格式的数字音频信号,中央处理单元提取解码后相应的音频数据和视频数据并发送给视频编码器和音频数模转换模块,视频编码器将已解码的数字信号转换为模拟电视信号,音频数模转换模块将已解码的数字PCM数据转换成立体声模拟信号;;所述输出单元包括视频滤波单元和音频放大 4. The set-top box according to claim 1, wherein the input unit comprises: a tuner and a demodulator for receiving a multimedia signal and demodulating the received multimedia signals and the decoded transport channel data stream; the said signal processing unit includes a demultiplexer, a decoder, an encoder, an audio digital to analog conversion module, the demultiplexer receives the transmission data stream, demultiplexing the data, the video data and audio data are formed, and the audio and decodes the video data sent to the decoder, the decoder outputs two signals, one set to the video encoder is a digital video signal, is sent to another set of audio digital to analog conversion module pulse code modulated PCM format digital audio recording after the signal, the central processing unit extracts the corresponding decoded video data and audio data sent to the video encoder and audio digital to analog conversion module, the video encoder the decoded digital signal to an analog television signal, an audio converter module which has been converting the decoded digital data into PCM ;; stereo analog signal output means said filter unit includes a video and audio amplification 元,视频滤波单元对视频编码器得到的模拟电视信号进行滤波处理后输出,音频放大单元对音频数模转换模块得到的立体声模拟信号进行放大后输出;所述存储单元包括有随机存储器RAM、只读存储器ROM和非易失性存储器,用于提供机顶盒系统运行时所需的存储空间以及用于存储多媒体信号。 After the element, the filtering unit of the video analog television signal obtained by the video encoder performs filtering processing output, means for amplifying the audio stereo analog audio signal converter module obtained by amplifying an output; said storage unit comprises a random access memory RAM, only read memory ROM and a nonvolatile memory, for providing the desired system STB runtime memory space for storing multimedia signal.
5. 一种机顶盒待机方法,其特征在于,所述机顶盒包括:输入单元,用于接收多媒体信号;信号处理单元,用于处理接收到的多媒体信号;存储单元用于存储所述多媒体信号和所述机顶盒的系统软件;输出单元,用于输出多媒体信号;中央处理单元,用于协调其他各个单元的工作;所述方法包括:在接收待机信号后,关闭输出单元的电源;关闭信号处理单元的电源; 关闭输入单元的电源; 指令存储单元转入低功耗状态; 指令中央处理单元转入低功耗状态。 A method for standby set-top box, wherein said set-top box comprising: an input unit for receiving a multimedia signal; a signal processing unit for processing the received multimedia signal; storage means for storing the multimedia signal and the said set-top box software; an output unit for outputting multimedia signal; central processing unit for coordinating the work of other respective units; the method comprising: after receiving the standby signal, turn off the power output unit; closing signal processing unit power; off power input unit; command storage means into a low power state; instruction central processing unit into the low power consumption state.
6.根据权利要求5所述的方法,其特征在于,所述待机信号包括内部时钟中断信号,所述方法包括:在预定的时刻到来时,产生所述内部时钟中断信号。 6. The method according to claim 5, wherein said internal clock signal includes a standby interrupt signal, the method comprising: when a predetermined time comes, the internal clock interrupt signal is generated.
7.根据权利要求5所述的方法,其特征在于,所述指令存储单元进入低功耗状态包括: 若所述存储单元包括随机存储器,则指令所述随机存储器进入自刷新状态;或若所述存储单元包括非易失性存储器,则指令所述非易失性存储器进入待机状态或关闭所述非易失性存储器的电源;或若所述存储单元包括只读存储器,则控制所述只读存储器进入待机状态或关闭所述只读存储器的电源。 7. The method according to claim 5, wherein said command storage means into a low power state comprises: if the storing unit comprises a random access memory, the random access memory is an instruction to enter self-refresh state; or if the said storage unit includes a nonvolatile memory, the nonvolatile memory is an instruction to enter the standby state or the power off of the nonvolatile memory; or if the storage unit includes a read only memory, the only control read memory into standby or power off the read-only memory.
8.根据权利要求5所述的方法,其特征在于,所述待机信号包括外部控制信号,所述外部控制信号包括:红外遥控信号、按键信号、远程网络待机信号或闭路线遥控信号。 8. The method according to claim 5, wherein said standby signal comprises an external control signal, the external control signal comprises: an infrared remote control signal, the key signal, the standby signal remote network remote control signal or closed line.
9. 一种机顶盒唤醒方法,其特征在于,所述机顶盒包括:输入单元,用于接收多媒体信号;信号处理单元,用于处理接收到的多媒体信号;存储单元用于存储所述多媒体信号和所述机顶盒系统运行所需的程序;输出单元,用于输出多媒体信号;中央处理单元(CPU), 用于协调其他各个单元的工作;所述方法包括: 在接收唤醒信号后,指令中央处理单元从低功耗状态转入正常工作状态; 指令存储单元从低功耗状态转入正常工作状态; 开启输出单元的电源; 开启信号处理单元的电源; 开启输入单元的电源。 A wake-up method set top box, wherein said set-top box comprising: an input unit for receiving a multimedia signal; the signal processing unit receives for processing a multimedia signal; storage means for storing the multimedia signal and the said operating system program required to set-top box; an output unit for outputting multimedia signal; central processing unit (CPU), to coordinate the work of other respective units; the method comprising: after receiving the wake-up signal, the instruction from the central processing unit low power consumption state becomes normal operation state; instruction storage unit from a low power state into a normal operation state; turn on the power output unit; turn on the power of the signal processing unit; power on the input unit.
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