WO2008071110A1 - Procédé et système de lecture simultanée de signal de télévision multicanal - Google Patents

Procédé et système de lecture simultanée de signal de télévision multicanal Download PDF

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Publication number
WO2008071110A1
WO2008071110A1 PCT/CN2007/071026 CN2007071026W WO2008071110A1 WO 2008071110 A1 WO2008071110 A1 WO 2008071110A1 CN 2007071026 W CN2007071026 W CN 2007071026W WO 2008071110 A1 WO2008071110 A1 WO 2008071110A1
Authority
WO
WIPO (PCT)
Prior art keywords
television signal
audio
television
video
display terminals
Prior art date
Application number
PCT/CN2007/071026
Other languages
English (en)
Chinese (zh)
Inventor
Qingyuan Chen
Original Assignee
Tencent Technology (Shenzhen) Company Limited
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 Tencent Technology (Shenzhen) Company Limited filed Critical Tencent Technology (Shenzhen) Company Limited
Publication of WO2008071110A1 publication Critical patent/WO2008071110A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • 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
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • 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
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Definitions

  • the present invention relates to the field of television, and more particularly to a method and system for simultaneously playing multi-channel television signals.
  • television signal receiving and decoding devices are well known.
  • the device is a conversion device that converts digital television signals into analog signals, and decodes and restores digitally compressed images and sound signals to generate analog images. Video and sound signals, watching TV programs on TV.
  • Typical television signal receiving and decoding devices include set top boxes, computers, and digital television integrated devices.
  • the television signal receiving and decoding device can simultaneously receive two television signals, so that the contents of the two channels can be simultaneously played.
  • the playing mode is realized by adopting the "picture in picture” mode: a channel is played in full screen, and a small monitoring window is opened on the screen to play the content of another channel. This playing mode is mainly used for monitoring or assisting channel selection.
  • the monitor window occupies a certain screen space.
  • this mode can only play the dubbing of the main screen, and the dubbing of the content played by the monitoring window cannot be simultaneously broadcasted, so it is impossible to monitor and select the channel effectively and conveniently through the monitoring window.
  • the present invention provides a method and system for simultaneously playing a multi-channel television signal that can simultaneously play multiple television signals.
  • a method for simultaneously playing a multi-channel television signal includes:
  • the television signal receiving decoder receiving the multi-channel television signal, separating the multi-channel television signals, and decoding the separated television signals, respectively Transmitting, by the connection between the television signal receiving decoder and the at least two display terminals, the decoded television signals to the at least two display terminals;
  • the at least two display terminals receive the television signals of the respective channels and play the television programs corresponding to the television signals of the respective channels.
  • a system for simultaneously playing a multi-channel television signal comprising a television signal receiving decoder and at least two display terminals, wherein the television signal receiving decoder comprises a television signal receiving module, a television signal decoding module, and a first audio and video transceiver module.
  • the display terminal includes a second audio and video transceiver module and a streaming media playback module;
  • the television signal receiving module is configured to receive a multi-channel television signal and separate the multi-channel television signals
  • the television signal decoding module is configured to decode the separated television signals;
  • the first audio and video transceiver module is connected to the television signal decoding module, and configured to send each channel signal decoded by the television signal decoding module to a different display terminal; Receiving a television signal from the first audio and video transceiver module, and sending it to the streaming media playing module for playing;
  • the streaming media playing module is configured to play a television signal.
  • the television signal receiving decoder separates the received multi-channel television signals, and the decoding is transmitted to a plurality of display terminals for playing, and each display terminal can play audio and video, so that when the user passes through the main display terminal
  • the TV band can also be monitored by other TV programs displayed by other display terminals, thereby achieving the purpose of channel selection without affecting the viewing of the TV programs played by the main display terminal by others. That is, by using the technical solution of the present invention, content of a plurality of television channels is played, thereby effectively monitoring and selecting channels of the television channels.
  • Fig. 1 is a flow chart showing a method of simultaneously playing a multi-channel television signal in the present invention.
  • FIG. 2 is a structural diagram of a system for simultaneously playing a multi-channel television signal in the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • a television signal receiving decoder receives a multi-channel television signal, And separating the television signals of each channel, and then decoding the separated television signals, respectively, and sending them to each display terminal (such as a television, a mobile phone, a portable computer, etc.), and playing various television signals on each display terminal, in which the playback is performed.
  • each display terminal plays independently, does not cause visual interference to other people who watch TV programs through other display terminals, and can fully and effectively monitor and select channels, thereby greatly improving the convenience of operation.
  • FIG. 1 is a flow chart of a method for simultaneously playing a multi-channel television signal in the present invention, including the following steps:
  • step S101 a connection is established between the television signal receiving decoder and each display terminal, where the number of terminals is two or more, the connection may be wired or wireless, and when the connection is wireless,
  • Bluetooth technology please refer to the official Bluetooth website at http:// ⁇ chinese.biiietooth,com/biiietooth/ for details on Bluetooth technology.
  • step S102 the television signal receiving decoder starts receiving the plurality of television signals, which are digitally compressed image and sound signals.
  • the television signal receiving decoder performs signal processing on the television signal, including decoding and attribute adjustment: since the television signal receiving decoder receives the digital television signal, it is decoded and restored, and correspondingly The television signal displayed by the terminal is displayed.
  • the specific decoding process may also refer to the official website of the Bluetooth mentioned in step S101.
  • the attribute adjustment refers to converting the decoded television signal into an audio and video signal that meets the requirements of the audio and video attributes of each display terminal. This is because different display terminals are different in format and size for audio and video. For example, when the display terminal is a television set, the decoded television signal is converted into an audio and video signal that meets the requirements of the television, such as when the display terminal is a support stream such as a mobile phone.
  • the decoded television signal needs to be converted into a streaming media signal.
  • the specific conversion process refer to the Bluetooth official website mentioned in step S101.
  • different display terminals may actively report the format and size of the audio and video to the television signal receiving decoder after being connected to the television signal receiving decoder, or may detect the display by the television signal receiving decoder. The type of the terminal, thereby judging the requirements of the format and size of the audio and video of each display terminal.
  • the television signal receiving decoder transmits the converted television signal to each display terminal.
  • S101 may not be performed in synchronization with steps S102 and S103, not necessarily before all the steps. And when the display terminal plays the audio and video program forwarded by the television for the first time, it always keeps connected with the TV signal receiving decoder, and then does not need to re-establish the connection when the pronunciation video program is turned.
  • step S104 the display terminal receives the television signal and extracts the audio and video stream.
  • step S105 the display terminal plays the obtained audio and video stream.
  • a user watches a television program through a large display terminal such as a television set, and monitors a television channel through a television signal played by a small display terminal such as a mobile phone terminal or a portable computer.
  • a small display terminal such as a mobile phone terminal or a portable computer.
  • the typical application of the present invention is not limited to forwarding audio and video programs to display terminals such as televisions, mobile terminals, and portable computer terminals, and may also be forwarded to other display terminals having similar functions for playing.
  • the scope of protection of the present invention is not limited to this.
  • the television signal receiving and decoding decoder 100 includes a television signal receiving module 101, a television signal decoding module 102, a streaming media conversion module 103, and a first audio and video stream transceiver module 104.
  • the display terminal 200 includes a second audio and video stream transceiver module 201 and a streaming media playback module 202.
  • the television signal receiving module 101 receives the multi-channel television signal according to the user's request, and separates the multi-channel television signals. Since these television signals are digitally compressed image and sound signals, it is necessary to transmit the separated multi-channel signals to the television signal decoding. Decoding is performed in module 102.
  • the television signal decoding module 102 is connected to the television signal receiving module 101, decodes and restores the digitally compressed image and sound signals, and transmits the decoded video and audio signals to the display terminals 200.
  • the process of decoding the digital television signal by the television signal decoding module 102 is equivalent to a process of extracting the audio and video streams.
  • the streaming media conversion module 103 is connected to the television signal decoding module 102, and converts the audio and video streams extracted by the television signal decoding module 102 into corresponding audio and video signals, such as streaming media signals, according to the attribute requirements of the audio and video of each display terminal 200.
  • Streaming media files have been specially compressed and encoded, which can be played while downloading in the network, instead of downloading the entire audio and video files before playing, while users listening and watching network audio and video files are decompressed.
  • the process, for details of streaming media technology can be found in the "Streaming Media Technology Encyclopedia" published by Zhang Li and China Teen Publishing House on November 1, 2001.
  • the attribute requirements mentioned here including the format and size of audio and video, the audio and video played by different display terminals (such as TV sets, mobile phones) have different requirements on attributes, so they must be played on some display terminals. TV signals, making property adjustments are essential.
  • the first audio and video stream transceiver module 104 transmits the audio and video signals output by the streaming media conversion module 103 to the second audio and video stream transceiver module 201 of each display terminal 200.
  • the data communication between the first audio-video stream transceiver module 104 and the second audio-video stream transceiver module 201 can be either wired transmission or wireless transmission, and when using wireless transmission, a Bluetooth device can be used. Refers to the Bluetooth chip and its accompanying software products for establishing a wireless connection.
  • the specific connection establishment process is: a typical Bluetooth adapter of the first audio and video stream transceiver module 104, which is set to In the discoverable mode, the second audio and video stream transceiver module 201 in the display terminal 200 searches for a Bluetooth device in a certain range by using a search method, and filters the searched device application method for filtering the target device to obtain a connection to be obtained.
  • the Bluetooth device address thus establishing a wireless connection.
  • the second audio-video stream transceiver module 201 of the display terminal 200 receives the television signal transmitted by the first audio-video stream transceiver module 104, performs decoding, and then sends the decoded television signal to the streaming media playback module 202 for playback.
  • the streaming media playing module 202 is connected to the second audio and video stream transceiver module 201 for playing the audio and video stream sent by the second audio and video stream transceiver module 201, so that the user can watch the television program in the display terminal 200.
  • the streaming media playing module 202 can be a playing software running in the display terminal 200, such as a streaming media player commonly used by people.
  • the television signal receiving module 101 and the television signal decoding module 102 are typically set top boxes, computers, and digital television integrated devices.
  • the display terminal 200 is typically a television set, a mobile phone, a portable computer, or the like.

Landscapes

  • 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)
  • Telephone Function (AREA)

Abstract

La présente invention concerne un procédé de lecture simultanée de signal de télévision multicanal comprenant les étapes suivantes : l'établissement de connexions entre un décodeur de réception de signaux de télévision et des terminaux d'affichage comportant au moins deux terminaux d'affichage; au niveau du décodeur de réception de signaux de télévision recevant le signal de télévision multicanal, la séparation du signal de télévision multicanal, le décodage du signal de télévision séparé et la transmission du signal de télévision monocanal décodé respectif à chaque terminal d'affichage via les connexions entre le décodeur de réception de signal de télévision et les terminaux d'affichage; la réception du signal de télévision monocanal respectif et la lecture de programmes de télévision correspondant au signal de télévision par les terminaux d'affichage. L'invention concerne également un système de lecture simultanée de signal de télévision multicanal.
PCT/CN2007/071026 2006-12-12 2007-11-07 Procédé et système de lecture simultanée de signal de télévision multicanal WO2008071110A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610124272.8 2006-12-12
CNB2006101242728A CN100459670C (zh) 2006-12-12 2006-12-12 一种同时播放多路电视信号的方法及系统

Publications (1)

Publication Number Publication Date
WO2008071110A1 true WO2008071110A1 (fr) 2008-06-19

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Application Number Title Priority Date Filing Date
PCT/CN2007/071026 WO2008071110A1 (fr) 2006-12-12 2007-11-07 Procédé et système de lecture simultanée de signal de télévision multicanal

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CN (1) CN100459670C (fr)
WO (1) WO2008071110A1 (fr)

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CN102300059A (zh) * 2010-06-25 2011-12-28 深圳Tcl新技术有限公司 一种电视播放系统及辅助播放装置
CN102098512A (zh) * 2010-12-15 2011-06-15 中兴通讯股份有限公司 一种移动终端及其视频播放的实现方法
US9451319B2 (en) * 2010-12-17 2016-09-20 Microsoft Technology Licensing, Llc Streaming digital content with flexible remote playback
CN102547420A (zh) * 2010-12-30 2012-07-04 上海无戒空间信息技术有限公司 多网媒体数据播放方法
CN102724590A (zh) * 2011-03-29 2012-10-10 深圳市同洲软件有限公司 一种音频处理方法及数字电视终端和系统
CN102355587A (zh) * 2011-08-17 2012-02-15 冠捷显示科技（厦门）有限公司 同步接收转播电视子节目的实现方法及其装置
CN103209345B (zh) * 2012-01-16 2018-12-14 联想(北京)有限公司 一种数据处理方法、系统及一种电子设备
CN102595221A (zh) * 2012-02-14 2012-07-18 青岛海信电器股份有限公司 多屏互动系统及相应的多媒体智能终端
CN103313110B (zh) * 2012-03-13 2016-12-14 联想(北京)有限公司 一种媒体设备及信息处理方法
CN102710933B (zh) * 2012-05-18 2016-05-18 青岛海信电器股份有限公司 数字电视编解码装置和数字电视编解码方法
CN102802076A (zh) * 2012-08-16 2012-11-28 青岛海信信芯科技有限公司 视音频传输方法和数字电视
CN102946558A (zh) * 2012-11-19 2013-02-27 中国计量学院 一种智能手机接收广播数字电视的方法和装置
CN103024527B (zh) * 2012-12-27 2016-09-21 深圳Tcl新技术有限公司 电视节目播放方法、主机及系统
CN103248936B (zh) * 2013-04-24 2017-09-05 深圳Tcl新技术有限公司 电视节目安静模式播放的方法和装置
CN103281573B (zh) * 2013-05-14 2016-01-06 海安常大技术转移中心有限公司 多功能视音频信号收发装置
CN103686317B (zh) * 2013-11-26 2017-12-12 小米科技有限责任公司 电视频道播放方法和装置
CN105337934A (zh) * 2014-07-04 2016-02-17 阿里巴巴集团控股有限公司 一种音频输出方法及设备
CN104125499B (zh) * 2014-07-11 2017-01-18 小米科技有限责任公司 电视节目的播放方法及装置
CN105635800A (zh) * 2014-11-24 2016-06-01 中兴通讯股份有限公司 一种电视节目无线传输的方法和机顶盒
CN104506916A (zh) * 2014-12-12 2015-04-08 深圳市天威视讯股份有限公司 机顶盒与智能移动终端的交互方法及其装置
CN106303645A (zh) * 2015-05-25 2017-01-04 晨星半导体股份有限公司 支持同时播放多个电视频道的方法及数据处理装置
CN105072484A (zh) * 2015-07-16 2015-11-18 成都北相赛勃科技有限公司 一种电视多媒体发布方法、装置、系统及控制方法
CN105307008A (zh) * 2015-10-28 2016-02-03 中新科技集团股份有限公司 一种基于直播信号的内容分发方法
CN105791919A (zh) * 2016-02-29 2016-07-20 青岛海信电器股份有限公司 一种影音文件的播放方法和播放设备
CN106559689B (zh) * 2016-11-28 2020-02-18 盐城晓瑞数字媒体有限公司 节目播放装置、移动终端及方法
CN106792067A (zh) * 2016-12-29 2017-05-31 深圳Tcl新技术有限公司 电视、移动终端以及多路电视节目播放方法和系统
CN113179425A (zh) * 2020-11-16 2021-07-27 北京路安世纪文化发展有限公司 一种高速数字电视信号传输方法

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CN100459670C (zh) 2009-02-04

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