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WO2014139068A1 - Procédé et dispositif de traitement de signal de télévision - Google Patents

Procédé et dispositif de traitement de signal de télévision Download PDF

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Publication number
WO2014139068A1
WO2014139068A1 PCT/CN2013/072377 CN2013072377W WO2014139068A1 WO 2014139068 A1 WO2014139068 A1 WO 2014139068A1 CN 2013072377 W CN2013072377 W CN 2013072377W WO 2014139068 A1 WO2014139068 A1 WO 2014139068A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal processing
video
interface
processing device
television signal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/072377
Other languages
English (en)
Chinese (zh)
Inventor
贾小军
何智勤
范存志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Co Ltd
Original Assignee
Huawei Device Co Ltd
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 Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Priority to PCT/CN2013/072377 priority Critical patent/WO2014139068A1/fr
Priority to CN2013800002903A priority patent/CN103404161A/zh
Publication of WO2014139068A1 publication Critical patent/WO2014139068A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • 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
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device

Definitions

  • the present invention relates to the field of terminal technologies, and in particular, to a television signal processing method and apparatus.
  • cable digital TV set-top boxes have become an indispensable audio-visual entertainment device for every family.
  • the cable digital TV signal is received by the cable digital TV set-top box, and a series of processing is performed to form a video audio data stream, which is output to the television for playback, and can provide a good video and audio experience.
  • mobile terminals such as smartphones and tablets to play video and audio.
  • mobile terminals such as smart phones and tablet computers cannot directly access the cable digital television network, and cannot play cable digital televisions, and cannot utilize rich cable digital television resources.
  • Embodiments of the present invention provide a television signal processing method and apparatus such that a mobile terminal can also play a cable digital television, utilizing cable digital television resources.
  • a television signal processing apparatus for causing a mobile terminal to play a cable digital television resource, the television signal processing apparatus comprising a receiving unit, a signal processing unit, and a transmitting unit, wherein:
  • the receiving unit is configured to receive a video audio signal from a cable digital television set top box, and send the video audio signal to the signal processing unit;
  • the signal processing unit is configured to perform signal processing on the video audio signal, package the processed video audio signal into an Internet Protocol IP data packet, and output the IP data packet to the sending unit;
  • the sending unit is configured to send the IP data packet to the mobile terminal.
  • the receiving unit is in the following interface One or more combinations:
  • Color difference component interface YPbPr interface and left and right channel interface YPbPr interface and left and right channel interface
  • the YPbPr interface is connected to the S/PDIF.
  • the sending unit is a wired cable or a wireless local area network module.
  • the signal processing unit includes a coding unit And an IP packet encapsulation unit, where:
  • the encoding unit is configured to encode a video audio signal received by the receiving unit into a video audio data stream, where the video audio signal is a digital signal;
  • the IP data packet encapsulating unit is configured to encapsulate the video audio data stream into an IP data packet.
  • the signal processing unit includes Unit, coding unit and IP packet encapsulation unit, where:
  • the sampling unit is configured to perform sampling on a video audio signal received by the receiving unit, where the video audio signal is an analog signal;
  • the encoding unit is configured to encode the received video audio signal into a video audio data stream, where the video audio signal is a digital signal;
  • the IP data packet encapsulating unit is configured to encapsulate the video audio data stream into an IP data packet.
  • the television signal processing apparatus further includes Infrared remote control coding unit and infrared emission unit, wherein:
  • the infrared remote control coding unit is configured to encode operation information received by the mobile terminal into an infrared remote control code
  • the infrared transmitting unit is configured to send the infrared remote control code to the cable digital television set top box, so that the wired digital television set top box performs corresponding operations according to the infrared remote control code.
  • a second aspect of the present invention provides a television signal processing method for causing a mobile terminal to play a cable digital television resource, the method comprising:
  • the television signal processing device receives the video audio signal from the cable digital television set top box; the television signal processing device performs signal processing on the received video audio signal, and encapsulates the processed video audio signal into an internet protocol IP data packet;
  • the television signal processing device transmits the IP data packet to the mobile terminal.
  • the television signal processing device receives the video audio signal from the cable digital television set top box through a combination of one or more of the following interfaces:
  • Color difference component interface YPbPr interface and left and right channel interface YPbPr interface and left and right channel interface
  • the YPbPr interface is connected to the S/PDIF.
  • the television signal processing apparatus sends the IP data packet to the mobile terminal, specifically: the television signal Processing the device transmits the IP data packet to the Mobile terminal.
  • the television signal processing apparatus sends the IP data packet to the mobile terminal, specifically: the television signal The processing device transmits the IP data packet to the wireless network through the wireless local area network
  • the television signal processing apparatus sends the IP data packet to the mobile terminal, specifically: the television signal The processing device transmits the IP data packet to the wireless routing packet via a wired cable.
  • the television signal processing device The received video and audio signal is subjected to signal processing, and the processed television signal is encapsulated into an IP data packet, which specifically includes:
  • the television signal processing device encodes the received video audio signal into a video audio data stream, wherein the video audio signal is a digital signal;
  • the television signal processing apparatus encapsulates the video audio data stream into an IP data packet.
  • the television signal processing device The received video and audio signal is subjected to signal processing, and the processed television signal is encapsulated into an IP data packet, which specifically includes:
  • the television signal processing device performs a sampling on the received video audio signal, wherein the video audio signal is an analog signal;
  • the television signal processing device encodes the sampled video audio signal into a video audio data stream
  • the television signal processing apparatus encapsulates the video audio data stream into an IP data packet.
  • the television signal processing device is Before the cable digital television set top box receives the video audio signal, the method further includes:
  • the television signal processing device receives a media play request sent by the mobile terminal.
  • the method further includes:
  • the television signal processing apparatus receives operation information sent by the mobile terminal
  • the television signal processing device encodes the operation information into an infrared remote control code
  • the television signal processing device transmits the infrared remote control code to the cable digital television set top box, so that the cable digital television set top box performs a corresponding operation according to the infrared remote control code.
  • the operations include searching for a channel, switching channels, and adjusting a volume.
  • the television signal processing device receives the video and audio signal from the cable digital television set-top box, performs a series of processes to generate an IP data packet, and sends the IP data packet to the mobile terminal, so that the mobile terminal can also play the cable. Digital TV, using cable digital TV resources.
  • FIG. 1 is a schematic diagram of a cable digital television playing system in the prior art
  • FIG. 2 is a schematic structural diagram of a cable digital television set top box according to an embodiment of the present invention
  • 3 is a schematic diagram of a cable digital television broadcasting system according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a television signal processing method according to an embodiment of the present invention
  • FIG. 5 is a flowchart of still another method for processing a television signal according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of still another method for processing a television signal according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of still another method for processing a television signal according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a television signal processing apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a signal processing unit of the television signal processing apparatus shown in FIG.
  • Figure 10 is a block diagram showing still another configuration of a signal processing unit of the television signal processing apparatus shown in Figure 8;
  • FIG. 11 is a schematic structural diagram of another television signal processing apparatus according to an embodiment of the present invention.
  • FIG. 1 it is a schematic diagram of a digital television broadcasting system in the prior art.
  • the cable digital television line interface 101 provides a cable digital television signal
  • the cable digital television set top box 102 is connected to the cable digital television line interface 101 via a cable, and receives the cable digital television radio frequency signal from the cable digital television line interface 101.
  • the series signal processing generates a digital video audio signal, or an analog video audio signal
  • the television 103 receives the digital video audio signal, or an analog video audio signal, for video audio playback.
  • mobile terminals such as smartphones, tablets, and notebook computers cannot play the cable digital television signals, and cannot fully utilize the rich cable digital television resources.
  • FIG. 1 is a schematic structural diagram of a cable digital television set top box according to an embodiment of the present invention.
  • the cable digital television set top box 20 includes a high frequency head 201, a QAM demodulation module 202, a PES demultiplexing module 203, an MPEG-2 decoding module 204, an encoding module 205, and the like.
  • the high frequency head 201 is externally connected with a cable digital television cable, and receives a high frequency digital television radio frequency signal for frequency modulation generation.
  • the frequency signal, QAM (Quadrature Amplitude Modulation) demodulation module 202 performs quadrature amplitude modulation on the intermediate frequency signal, and outputs an MPEG (Moving Picture Expeditions Group) transmission stream ( Trans por t S tream, TS ), PES (Packed ti zed E lementa ry S t reams ), the demultiplexing module 203 receives the MPEG TS stream, and selects the PES data of a program.
  • the PES data includes video PES and audio PES.
  • the MPEG-2 decoding module 204 includes a video decoding module and an audio decoding module.
  • the video PES is input to the video decoding module, and the MPEG video data is extracted by the video decoding module, and the MEPG video data is decoded, and then output to the encoding module.
  • 205 encoding into a video signal, and outputting through a video output circuit;
  • the audio PES is input into an audio decoding module, and the MPEG audio data is extracted by the audio decoding module, and the MPEG audio data is decoded, an audio signal is generated, and output through the audio. Circuit output. Block, conditional access module, and standard card interface and infrared interface.
  • FIG. 3 is a schematic diagram of a digital television playing system according to an embodiment of the present invention.
  • the cable digital television line interface 101 provides a cable digital television signal
  • the cable digital television set top box 102 is connected to the cable digital television line interface 101 via a cable, and receives a cable digital television radio frequency signal from the cable digital television line interface 101, after a series of a video audio processing process, generating a digital video audio signal, or an analog video audio signal
  • the television signal processing device 104 receives the digital video audio signal or the analog video audio signal output by the cable digital television set top box 102 by wire or wirelessly.
  • the data packet obtains a video audio data stream and plays the video audio data stream.
  • the television signal processing device receives the video and audio signal from the cable digital television set-top box, performs a series of processes to generate an IP data packet, and transmits the IP data packet to the mobile terminal, so that the mobile terminal can also play the cable.
  • Digital TV using cable digital TV resources.
  • FIG. 4 is a schematic diagram of a cable digital television signal processing method according to an embodiment of the present invention. The method includes:
  • the television signal processing device receives the video audio signal from the cable digital television set top box.
  • the cable digital television set top box can output video and audio signals through a combination of one or more of the following interfaces, for example: composite video broadcast signal (Compos i te Video Broadcas t Signa l, CVBS) interface, R/L left and right channel interface, Sony/Philips digital audio interface (Sony/Phi ips Digi ta l Interconnect Format, S/PDIF), S-Video (S-VIDEO), SCART interface, High-definition multimedia interface (High Def ini Mul t imedia Interface, HDMI), color difference component interface (YPbPr).
  • composite video broadcast signal Compos i te Video Broadcas t Signa l, CVBS
  • R/L left and right channel interface Sony/Philips digital audio interface (Sony/Phi ips Digi ta l Interconnect Format, S/PDIF), S-Video (S-VIDEO), SCART interface
  • the television signal processing device may comprise a combination of one or more of the above interfaces, receiving video and audio signals from the cable digital television set top box, for example:
  • the television signal processing device performs signal processing on the received video and audio signal, and encapsulates the processed video and audio signal into an Internet Protocol (IP) data packet.
  • IP Internet Protocol
  • the video audio data is packaged into a data stream of MPEG2 or H.264, and the data stream is encapsulated into an IP data packet.
  • the television signal processing device can process the video audio signal differently, and can be processed as follows.
  • the television signal processing device receives the video and audio signal and performs signal processing on the video and audio signal, and encapsulates the data into an IP data packet, which may include the following steps:
  • the television signal processing device encodes the received video audio signal into video audio data flow.
  • the television signal processing apparatus encapsulates the video audio data stream into an IP data packet. If the video audio data received by the television signal processing device is a digital signal, the encoding unit encodes the digital signal to generate a video audio data stream, such as a video audio data stream of MPEG2 or H.264, and then through the IP data packet. The encapsulating unit encapsulates the video audio data stream into an IP data packet, and transmits the IP data packet to the mobile terminal.
  • a video audio data stream such as a video audio data stream of MPEG2 or H.264
  • the television signal processing device receives the video and audio signal and performs signal processing on the video and audio signal, and encapsulates the data into an IP data packet, which may include the following steps:
  • the television signal processing device performs sampling on the received video and audio signal.
  • the television signal processing apparatus encodes the sampled video audio signal into a video audio data stream.
  • the television signal processing apparatus encapsulates the video audio data stream into an IP data packet.
  • the video audio data received by the television signal processing device is an analog signal. First, it needs to be converted into a digital signal, and then it needs to be sampled first, and a digital signal is generated by analog-to-digital conversion, and the encoder pairs the digital signal.
  • the encoding is performed to generate a video audio data stream, such as a video audio data stream of MPEG2 or H.264, and then the video audio data stream is encapsulated into an IP data packet by the IP data packet encapsulating unit, and the IP data packet is transmitted to the mobile terminal.
  • the television signal processing apparatus sends the IP data packet to the mobile terminal.
  • the television signal processing device sends the IP data packet to the mobile terminal, and the mobile terminal can receive the IP data packet in the following three manners:
  • the television signal processing apparatus includes a wireless local area network module, and if the wireless local area network module has an access point (AP) function, the television signal processing apparatus 104 can directly directly The IP data packet is sent to the mobile terminal 105.
  • AP access point
  • the television signal processing device includes a wireless local area network module, and if the wireless local area network module only has a normal stating function, the television signal processing device sends the IP data packet to the wireless local area network to a wireless router, the mobile terminal receiving the IP data packet from the wireless router via a wireless local area network.
  • the television signal processing apparatus may also send the IP data packet to a wireless router by using a wired cable, and the mobile terminal receives the IP data packet from the wireless router through a wireless local area network.
  • the television signal processing device receives the video and audio signal from the cable digital television set-top box, performs a series of processes to generate an IP data packet, and sends the IP data packet to the mobile terminal, so that the mobile terminal can also play the cable.
  • Digital TV using cable digital TV resources.
  • the television signal processing method may further include the following steps:
  • the television signal processing apparatus receives a media play request sent by the media play terminal.
  • the application on the mobile terminal is started, the application sends a media play request to the television signal processing device, and the television signal processing device receives the media play request, And receiving the video audio signal sent by the cable digital television set top box in response to the media play request.
  • the cable digital television set top box can be activated to connect the cable digital television set top box and the television signal processing device by wire or wirelessly.
  • the application may again send a media play request to the television signal processing device if necessary.
  • the method may further include the following steps:
  • the television signal processing apparatus receives operation information sent by a mobile terminal.
  • the mobile terminal can transmit operational information to the television signal processing device to control the wired digital television set top box to perform the corresponding operation.
  • the operations include: searching for channels, switching channels, adjusting volume, and of course other operations on cable digital television set top boxes, not enumerated here.
  • the mobile terminal may directly send the operation information to the television signal processing device through a wireless local area network, or may first send the operation information to the wireless device through a wireless local area network.
  • a router the television signal processing device receiving the operation information from the wireless router via a wired cable or a wireless local area network.
  • the television signal processing apparatus encodes the operation information into an infrared remote control code.
  • the television signal processing apparatus sends the infrared remote control code to the cable digital television set top box, so that the cable digital television set top box performs a corresponding operation according to the infrared remote control code.
  • the television signal processing apparatus can receive the media broadcast sent by the mobile terminal. Sending a request, the video audio signal received from the cable digital television set top box is processed and sent to the mobile terminal, so that the mobile terminal can play the cable digital television resource; at the same time, the television signal processing device can also receive the operation information sent by the mobile terminal, and The operation information is encoded into an infrared remote control code and sent to the cable digital television set top box, so that the wired digital television set top box performs corresponding operations according to the infrared remote control code. Thereby, the television signal processing apparatus can be directly controlled by the mobile terminal to complete video audio playback and related operations.
  • FIG. 8 is a schematic structural diagram of a television signal processing apparatus according to an embodiment of the present invention.
  • the television signal processing device 40 includes a receiving unit 401, a signal processing unit 402, and a transmitting unit 403, where:
  • the receiving unit 401 is configured to receive a video audio signal from a cable digital television set top box, and send the video audio signal to the signal processing unit 402;
  • the television signal processing device 40 receives the video and audio signals from the cable digital set top box 102 through the receiving unit 401.
  • the receiving unit 401 can be a combination of one or more of the following interfaces, for example:
  • the signal processing unit 402 is configured to perform signal processing on the received video and audio signal, encapsulate the processed video and audio signal into an Internet Protocol (IP) data packet, and output the IP data packet to the The sending unit 403;
  • IP Internet Protocol
  • the receiving unit 401 After the receiving unit 401 receives the video audio data, the video audio data is transmitted to the signal processing unit 402, and the signal processing unit 402 packs the video audio data into a data stream of MPEG2 or H.264. And encapsulating the data stream into an IP data packet.
  • the signal processing unit 40 has different processing procedures for receiving the video audio signal, and the signal processing unit 402 can be configured as follows:
  • the signal processing unit 402 includes an encoding unit 4021 and an IP packet encapsulating unit 4022, where:
  • the encoding unit 4021 is configured to encode the received video audio signal into a video audio data stream.
  • the IP data packet encapsulating unit 4022 is configured to encapsulate the video audio data stream into an IP data packet.
  • the encoding unit 4021 encodes the digital signal to generate a video audio data stream, such as a video audio data stream of MPEG2 or H.264, and then by IP.
  • the packet encapsulating unit 4022 encapsulates the video audio data stream into an IP data packet, and transmits the IP data packet to the mobile terminal through the transmitting unit.
  • the signal processing unit 402 includes a sampling unit 4023, an encoding unit 4021, and an IP packet encapsulating unit 4022, where:
  • the sample unit 4023 the television signal processing device samples the received video and audio signals.
  • the encoding unit 4021 is configured to encode the sampled video audio signal into a video audio data stream.
  • the IP data packet encapsulating unit 4022 is configured to encapsulate the video audio data stream into an IP data packet. If the video audio data received by the television signal processing device 40 is an analog signal, it is first converted into a digital signal. Then, the analog signal unit 4023 first samples the analog signal, and generates a digital signal by analog-to-digital conversion, and the encoding unit 4021 encodes the digital signal to generate a video audio data stream, such as a video of MPEG2 or H.264. The audio data stream is further encapsulated into an IP data packet by the IP data packet encapsulating unit 4022, and the IP data packet is transmitted to the mobile terminal.
  • the sending unit 403 is configured to send the IP data packet to the mobile terminal.
  • the television signal processing device 40 further includes an infrared remote control encoding unit 404 and an infrared transmitting unit 405, wherein:
  • the infrared remote control encoding unit 404 is configured to encode operation information received by the mobile terminal into an infrared remote control code;
  • the infrared transmitting unit 405 is configured to send the infrared remote control code to the cable digital television set top box, so that the wired digital television set top box performs corresponding operations according to the infrared remote control code.
  • the television signal processing device receives the video and audio signal from the cable digital television set-top box, performs a series of processes to generate an IP data packet, and sends the IP data packet to the mobile terminal, so that the mobile terminal can also play the cable.
  • Digital TV using cable digital TV resources.
  • the television signal processing device can receive the media play request sent by the mobile terminal, process the video audio signal received from the cable digital set top box, and send the video audio signal to the mobile terminal, so that the mobile terminal can play the cable digital television resource; and at the same time, the television signal The processing device may further receive the operation information sent by the mobile terminal, and encode the operation information into an infrared remote control code and send the information to the cable digital television set top box, so that the wired digital television set top box performs the corresponding operation according to the infrared remote control code.
  • the television signal processing device can be directly controlled by the mobile terminal to complete video audio playback and related operations.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention porte sur un dispositif de traitement de signal de télévision, afin de permettre à un terminal mobile de lire une ressource de télévision numérique câblée. Le dispositif de traitement de signal de télévision comprend une unité de réception, une unité de traitement de signal, et une unité d'envoi, l'unité de réception étant utilisée pour recevoir un signal vidéo/audio en provenance d'un boîtier décodeur d'une télévision numérique câblée, et envoyer le signal vidéo/audio à l'unité de traitement de signal; l'unité de traitement de signal étant utilisée pour réaliser un traitement de signal sur le signal vidéo/audio, encapsuler le signal vidéo/audio traité dans un paquet de données de protocole Internet (IP), et délivrer le paquet de données IP à l'unité d'envoi; et l'unité d'envoi étant utilisée pour envoyer le paquet de données IP à un terminal mobile, de telle sorte que le terminal mobile puisse lire la télévision numérique câblée et utiliser la ressource de télévision numérique câblée.
PCT/CN2013/072377 2013-03-11 2013-03-11 Procédé et dispositif de traitement de signal de télévision Ceased WO2014139068A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2013/072377 WO2014139068A1 (fr) 2013-03-11 2013-03-11 Procédé et dispositif de traitement de signal de télévision
CN2013800002903A CN103404161A (zh) 2013-03-11 2013-03-11 一种电视信号处理方法及装置

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Application Number Priority Date Filing Date Title
PCT/CN2013/072377 WO2014139068A1 (fr) 2013-03-11 2013-03-11 Procédé et dispositif de traitement de signal de télévision

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