WO2008071110A1 - A method and a system for playing multi-channel tv signal simultaneously - Google Patents

A method and a system for playing multi-channel tv signal simultaneously 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
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Prior art keywords
television signal
audio
television
video
display terminals
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PCT/CN2007/071026
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French (fr)
Chinese (zh)
Inventor
Qingyuan Chen
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Tencent Technology (Shenzhen) Company Limited
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Publication of WO2008071110A1 publication Critical patent/WO2008071110A1/en

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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

A method for playing multi-channel TV signal simultaneously includes the following steps of: establishing connections between a TV signal receiving decoder and display terminals which comprise two display terminals at least; at the TV signal receiving decoder receiving the multi-channel TV signal, separating the multi-channel TV signal, decoding the separated TV signal and transmitting the decoded several single-channel TV signal to the every display terminal by the connections between the TV signal receiving decoder and the display terminals; receiving the several single-channel TV signal and playing the TV programs corresponding to the TV signal by the display terminals. A system for playing multi-channel TV signal simultaneously is also disclosed.

Description

一种同时播放多路电视信号的方法及系统  Method and system for simultaneously playing multi-channel television signals
技术领域 本发明涉及电视领域，特别是涉及一种同时播放多路电视信号的 方法及系统。 发明背景 由于数字电视的兴起， 电视信号接收解码装置已为人们所熟知， 该装置是将数字电视信号转换成模拟信号的变换设备，对经过数字化 压缩的图像和声音信号进行解码还原， 产生模拟的视频和声音信号， 通过电视机收看电视节目。 典型的电视信号接收解码装置包括机顶 盒、 电脑和数字电视一体机等。 TECHNICAL FIELD The present invention relates to the field of television, and more particularly to a method and system for simultaneously playing multi-channel television signals. BACKGROUND OF THE INVENTION Due to the rise of digital television, 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.
在现阶段， 电视信号接收解码装置能够同时接收两路电视信号， 从而能同时播放两个频道的内容。 其播放方式是采取 "画中画"方式 实现： 满屏播放一个频道， 同时在屏幕上开启一个小监视窗播放另一 个频道的内容， 这种播放方式主要用于监视或者辅助选台。  At this stage, 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.
但是，在现有技术的播放方式中，监视窗占用了一定的屏幕空间， 当某个观众不停选台变更监视窗的内容时，会在视觉上干扰其他人观 看电视节目， 造成不便。 另外， 此方式只能播放主画面的配音， 而监 视窗所播放内容的配音不能同时播出，因此无法通过监视窗进行有效 和便利的监视和选台。  However, in the prior art playback mode, the monitor window occupies a certain screen space. When a viewer continuously selects the content of the monitor window, it will visually interfere with other people watching the TV program, causing inconvenience. In addition, 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.
因此需要一种方法克服监视窗带来的上述不足，能够同时播放多 个电视频道的内容，并在不影响他人的观看的前提下对电视频道进行 有效的监视和选台。 发明内容 本发明提供了一种同时播放多路电视信号的方法和系统，可同时 播放多路电视信号。 Therefore, there is a need for a method to overcome the above-mentioned shortcomings brought by the monitoring window The content of a TV channel, and effective monitoring and selection of TV channels without affecting the viewing of others. SUMMARY OF THE INVENTION The present invention provides a method and system for simultaneously playing a multi-channel television signal that can simultaneously play multiple television signals.
为了实现发明目的， 本发明所采用的技术方案是：  In order to achieve the object of the invention, the technical solution adopted by the invention is:
一种同时播放多路电视信号的方法包括：  A method for simultaneously playing a multi-channel television signal includes:
建立电视信号接收解码器与至少两个显示终端之间的连接； 所述电视信号接收解码器接收多路电视信号，将多路电视信号进 行分离， 解码分离后的各路电视信号， 分别通过所述电视信号接收解 码器与至少两个显示终端之间的连接将所述解码后的各路电视信号 发送到所述至少两个显示终端；  Establishing a connection between the television signal receiving decoder and the at least two display terminals; 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;
所述至少两个显示终端接收所述各路电视信号 ,并播放所述各路 电视信号对应的电视节目。  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.
一种同时播放多路电视信号的系统，包括电视信号接收解码器以 及至少两个显示终端，其中所述电视信号接收解码器包括电视信号接 收模块、 电视信号解码模块、 第一音视频收发模块， 所述显示终端包 括第二音视频收发模块和流媒体播放模块；  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;
所述电视信号接收模块， 用于接收多路电视信号， 并分离多路电 视信号；  The television signal receiving module is configured to receive a multi-channel television signal and separate the multi-channel television signals;
所述电视信号解码模块， 用于解码分离后的各路电视信号； 所述第一音视频收发模块， 与所述电视信号解码模块相连， 用于 将所述电视信号解码模块解码后的各路信号发送到不同的显示终端； 所述第二音视频收发模块，用于接收来自所述第一音视频收发模 块的电视信号， 将其送入流媒体播放模块播放； 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;
所述流媒体播放模块， 用于播放电视信号。  The streaming media playing module is configured to play a television signal.
利用本发明的技术方案，电视信号接收解码器将所接收到多路电 视信号分离后， 解码传送到多个显示终端播放，每个显示终端都可以 播放音频和视频，这样当用户通过主显示终端观看某一电视频段节目 时， 也可以通过其他显示终端播放的其他电视节目来监控电视频段， 从而达到选台的目的，而不影响他人对主显示终端播放的电视节目的 观看。 即利用本发明的技术方案， 播放多个电视频道的内容， 从而对 电视频道进行有效的监视和选台。 附图简要说明 图 1是本发明中同时播放多路电视信号的方法流程图。  With the technical solution of the present invention, 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 When watching a certain TV band program, 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. Brief Description of the Drawings Fig. 1 is a flow chart showing a method of simultaneously playing a multi-channel television signal in the present invention.
图 2是本发明中同时播放多路电视信号的系统结构图。 实施本发明的方式 为了使本发明的技术方案及优点更加清楚明白，以下结合附图及 实施例， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具 体实施例仅仅用以解释本发明， 并不用于限定本发明。  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.
根据本发明的实施例， 电视信号接收解码器接收多路电视信号， 并分离各路电视信号， 再对分离后的电视信号解码后， 分别送到各显 示终端 （如电视机、 手机、 便携式电脑等）， 在各显示终端上播放各 路电视信号， 在这种播放方式下， 各显示终端独立播放， 不对通过其 他显示终端收看电视节目的其他人造成视觉干扰，并能充分有效地进 行监视和选台， 极大地提高了操作的便利性。 According to an embodiment of the present 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. In the mode, 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.
图 1是本发明中同时播放多路电视信号的方法流程图， 包括以下 步骤：  1 is a flow chart of a method for simultaneously playing a multi-channel television signal in the present invention, including the following steps:
在步骤 S101 , 在电视信号接收解码器与各显示终端之间建立连 接， 这里显示终端数目大于等于两个， 此连接即可以是有线的， 也可 以是无线的， 当该连接为无线时， 可以采用蓝牙技术， 关于蓝牙技术 的相 关详 细 内 容 ， 可参考蓝 牙 官方 网 站 ， 网 址 为 http：〃 chinese.biiietooth,com/biiietooth/。  In 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, For Bluetooth technology, please refer to the official Bluetooth website at http://〃 chinese.biiietooth,com/biiietooth/ for details on Bluetooth technology.
在步骤 S102, 电视信号接收解码器开始接收多路电视信号，这些 电视信号均为经过数字化压缩的图像和声音信号。  In step S102, the television signal receiving decoder starts receiving the plurality of television signals, which are digitally compressed image and sound signals.
在步骤 S103 , 电视信号接收解码器对电视信号进行信号处理， 包 括解码和属性调整：由于电视信号接收解码器所接收到的是数字电视 信号， 因此要对其进行解码还原， 产生相应的可在显示终端显示的电 视信号， 具体的解码过程也可参考步骤 S101中提及的蓝牙官方网站； 属性调整是指将解码后的电视信号转换为符合各显示终端对音视频 属性要求的音视频信号，这是因为不同的显示终端对音视频在格式和 尺寸方面都不相同。 如当显示终端为电视机时， 将解码后的电视信号 转换为符合电视机要求的音视频信号，如当显示终端为手机等支持流 媒体信号终端时， 则需将解码后的电视信号转换为流媒体信号， 具体 的转换过程可参考步骤 S 101中提及的蓝牙官方网站。这里可以是不同 的显示终端在与电视信号接收解码器连接后，主动向电视信号接收解 码器上报自己对音视频在格式和尺寸方面的要求，也可以是由电视信 号接收解码器侦测各显示终端的类型，从而判断各显示终端对音视频 在格式和尺寸方面的要求。 完成上述信号处理之后， 电视信号接收解 码器将转换后的电视信号发送到各显示终端。 In step S103, 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. For the media signal terminal, the decoded television signal needs to be converted into a streaming media signal. For the specific conversion process, refer to the Bluetooth official website mentioned in step S101. Here, 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. After the above signal processing is completed, the television signal receiving decoder transmits the converted television signal to each display terminal.
应当说明的是， 在该实施例中， S101不一定在所有步骤之前， 也 可以与步骤 S102和 S103同步进行。并且当显示终端第一次播放电视机 转发的音视频节目后， 始终与电视信号接收解码器保持着连接， 再转 发音视频节目时则不需再重新建立连接。  It should be noted that, in this embodiment, 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.
在步骤 S104, 显示终端接收电视信号， 并提取出音视频流。 在步骤 S105 , 显示终端播放所获得的音视频流。  In step S104, the display terminal receives the television signal and extracts the audio and video stream. In step S105, the display terminal plays the obtained audio and video stream.
至此， 则完成了一次完整的转发播放过程。  At this point, a complete forward playback process is completed.
本发明的典型应用时，用户通过电视机等大型显示终端观看电视 节目， 通过手机终端、便携式电脑等小型显示终端播放的电视信号来 监控电视频道。应当说明的是， 本发明典型的应用并不局限于将音视 频节目转发至电视机、 手机终端、 便携式电脑终端等显示终端播放， 也可以转发至其他具有类似功能的显示终端中播放， 因此， 本发明的 保护范围并不限定于此。  In a typical application of the present invention, 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. It should be noted that 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.
图 2是本发明中同时播放多路电视信号的系统结构图， 该系统包 括电视信号接收解码器 100和至少两个显示终端 200。 其中， 电视信号接收解码器 100包括电视信号接收模块 101、 电视 信号解码模块 102、流媒体转换模块 103和第一音视频流收发模块 104。 显示终端 200包括第二音视频流收发模块 201和流媒体播放模块 202。 2 is a structural diagram of a system for simultaneously playing a multi-channel television signal in the present invention, the system including a television signal receiving decoder 100 and at least two display terminals 200. 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.
电视信号接收模块 101按照用户要求接收多路电视信号， 分离多 路电视信号，由于这些电视信号均为经过数字化压缩的图像和声音信 号， 将此需要将分离后的多路信号发送至电视信号解码模块 102中进 行解码。  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.
电视信号解码模块 102与电视信号接收模块 101相连，对经过数字 化压缩的图像和声音信号进行解码还原，并将解码后的视频和声音信 号发送到各显示终端 200。电视信号解码模块 102解码数字电视信号的 过程， 相当于一个对音视频流进行提取的过程。  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.
流媒体转换模块 103与电视信号解码模块 102相连，将电视信号解 码模块 102所提取出来的音视频流按照各显示终端 200对音视频的属 性要求转换为相应音视频信号， 如流媒体信号。 流媒体格式的文件经 过了特殊的压缩编码， 能够实现在网络中边下载边播放， 而不是将整 个音视频文件全部下载后才能播放，而使用者收听和收看网络音视频 文件则是一个解压缩的过程， 关于流媒体技术的详细内容， 可参考由 张丽所著、 中国青年出版社于 2001年 11月 1日出版的 《流媒体技术大 全》。 此处提及的属性要求， 包括音视频的格式和尺寸等方面， 不同 的显示终端（如电视机、 手机）所播放的音视频对属性的要求并不相 同， 所以要在某些显示终端播放电视信号， 进行属性调整是必不可少 的。 第一音视频流收发模块 104,将流媒体转换模块 103输出的音视频 信号发送到各显示终端 200的第二音视频流收发模块 201。 本发明中， 第一音视频流收发模块 104和第二音视频流收发模块 201之间的数据 通信既可以通过有线传输， 也可以是无线传输， 当利用无线传输时又 可以采用蓝牙设备， 一般是指蓝牙芯片及其配套的软件产品， 用于建 立无线连接。 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 Youth 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. In the present invention, 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.
当第一音视频流收发模块 104以及第二音视频流收发模块 201均 为蓝牙设备时，其具体的连接建立过程是：第一音视频流收发模块 104 的典型蓝牙适配器， 将其设定为可发现模式， 显示终端 200中的第二 音视频流收发模块 201则采用搜寻方式对一定范围内的蓝牙设备进行 搜索， 并将搜索到的设备应用筛选目标设备的方法进行过滤，得到一 个要连接的蓝牙设备地址， 从而建立无线连接。  When the first audio and video stream transceiver module 104 and the second audio and video stream transceiver module 201 are both Bluetooth devices, 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.
显示终端 200的第二音视频流收发模块 201接收到第一音视频流 收发模块 104所发送的电视信号后， 进行解码， 然后将解码后的电视 信号发送到流媒体播放模块 202中播放。  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.
流媒体播放模块 202与第二音视频流收发模块 201相连，用于播放 第二音视频流收发模块 201发送过来的音视频流， 从而使得用户可在 显示终端 200中收看电视节目。该流媒体播放模块 202可以是运行在显 示终端 200中的一个播放软件， 如人们所常用的流媒体播放器等。  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.
在本发明中， 电视信号接收模块 101、 电视信号解码模块 102典型 的可为机顶盒、 电脑和数字电视一体机等， 显示终端 200则典型的可 为电视机、 手机、 便携式电脑等。 以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明的保护范围之内。 In the present invention, 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. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

权利要求书 Claim
1、 一种同时播放多路电视信号的方法， 其特征在于， 包括： 建立电视信号接收解码器与至少两个显示终端之间的连接； 所述电视信号接收解码器接收多路电视信号，将多路电视信号进 行分离， 解码分离后的各路电视信号， 分别通过所述电视信号接收解 码器与至少两个显示终端之间的连接将所述解码后的各路电视信号 发送到所述至少两个显示终端； A method for simultaneously playing a multi-channel television signal, comprising: establishing a connection between a television signal receiving decoder and at least two display terminals; and the television signal receiving decoder receiving the multi-channel television signal, Demultiplexing the multi-channel television signals, decoding the separated television signals, and transmitting the decoded television signals to the at least each of the television signal receiving decoders and the connection between the at least two display terminals Two display terminals;
所述至少两个显示终端接收所述各路电视信号 ,并播放所述各路 电视信号对应的电视节目。  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.
2、 根据权利要求 1所述的方法， 其特征在于， 所述建立电视信号 接收解码器与至少两个显示终端之间的连接包括：  2. The method according to claim 1, wherein the establishing a connection between the television signal receiving decoder and the at least two display terminals comprises:
建立电视信号接收解码器与至少两个显示终端之间的无线连接 和 /或有线连接。  A wireless connection and/or a wired connection between the television signal receiving decoder and the at least two display terminals is established.
3、 根据权利要求 1所述的方法， 其特征在于， 进一步包括： 将所述电视信号分别转换为符合所述至少两个显示终端对音视 频属性要求的音视频信号；  The method according to claim 1, further comprising: converting the television signals into audio and video signals that meet the requirements of the at least two display terminals for audio and video attributes;
所述分别通过电视信号接收解码器与至少两个显示终端之间的 连接将解码后的各路电视信号发送到所述至少两个显示终端， 包括： 分别通过电视信号接收解码器与至少两个显示终端之间的连接 将所述转换后的音视频信号发送到所述至少两个显示终端。  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, respectively, comprising: respectively receiving the decoder through the television signal and at least two The connection between the display terminals transmits the converted audio and video signals to the at least two display terminals.
4、 根据权利要求 3所述的方法， 其特征在于， 所述音视频属性包 括音视频的格式和尺寸。 4. The method according to claim 3, wherein the audio and video attribute package The format and size of the audio and video.
5、 根据权利要求 3所述的方法， 其特征在于， 所述至少两个显示 终端的一个或多个显示终端为支持流媒体的显示终端；  The method according to claim 3, wherein the one or more display terminals of the at least two display terminals are display terminals supporting streaming media;
所述将电视信号转换为符合显示终端对音视频属性要求的音视 频信号包括：  The converting the television signal into an audio/video signal that meets the requirements of the display terminal for audio and video attributes includes:
将电视信号转换为流媒体信号；  Converting a television signal into a streaming media signal;
所述显示终端接收电视信号，并播放所述各路电视信号对应的电 视节目， 包括：  The display terminal receives the television signal and plays the television program corresponding to each of the television signals, including:
所述显示终端通过所述电视信号接收解码器与所述显示终端之 间的连接接收所述流媒体信号， 并提取出音视频流；  The display terminal receives the streaming media signal through a connection between the television signal receiving decoder and the display terminal, and extracts an audio and video stream;
所述显示终端播放所述音视频流对应的电视节目。  The display terminal plays a television program corresponding to the audio and video stream.
6、 根据权利要求 1所述的方法， 所述显示终端为电视机和 /或手 机终端。  6. The method according to claim 1, wherein the display terminal is a television set and/or a mobile terminal.
7、 一种同时播放多路电视信号的系统， 包括电视信号接收解码 器以及至少两个显示终端，其中所述电视信号接收解码器包括电视信 号接收模块、 电视信号解码模块、 第一音视频收发模块， 所述显示终 端包括第二音视频收发模块和流媒体播放模块；  7. 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;
所述电视信号接收模块， 用于接收多路电视信号， 并分离多路电 视信号；  The television signal receiving module is configured to receive a multi-channel television signal and separate the multi-channel television signals;
所述电视信号解码模块， 用于解码分离后的各路电视信号； 所述第一音视频收发模块， 与所述电视信号解码模块相连， 用于 将所述电视信号解码模块解码后的各路信号发送到所述至少两个显 示终端； 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 is used to decode the television signal decoding module. Signaling to the at least two displays Terminal
所述第二音视频收发模块，用于接收来自所述第一音视频收发模 块的电视信号， 将其送入流媒体播放模块播放；  The second audio and video transceiver module is configured to receive a television signal from the first audio and video transceiver module, and send the video signal to the streaming media playing module to play;
所述流媒体播放模块， 用于播放电视信号。  The streaming media playing module is configured to play a television signal.
8、 根据权利要求 7所述的系统， 其特征在于， 所述电视信号接收 解码器进一步包括流媒体转换模块， 与电视信号解码模块相连， 用于 按照所述至少两个显示终端对音视频属性的要求，将所述电视信号解 码模块解码后的电视信号转换为符合至少两个显示终端对音视频属 性要求的音视频信号；并将所述转换后的音视频信号通过第一音视频 收发模块发送到所述至少两个显示终端。  The system according to claim 7, wherein the television signal receiving decoder further comprises a streaming media conversion module, and is connected to the television signal decoding module, configured to perform audio and video attributes according to the at least two display terminals. And converting the television signal decoded by the television signal decoding module into an audio and video signal that meets the requirements of at least two display terminals for audio and video attributes; and passing the converted audio and video signal to the first audio and video transceiver module. Sended to the at least two display terminals.
9、 如权利要求 7所述的系统， 其特征在于， 所述至少两个显示终 端的一个或多个为支持流媒体信号的显示终端，所述流媒体转换模块 进一步用于将所述电视信号解码模块解码后的电视信号转换为流媒 体信号；并将所述转换后的流媒体信号通过第一音视频收发模块发送 到所述至少两个显示终端的一个或多个。  The system according to claim 7, wherein one or more of the at least two display terminals are display terminals supporting streaming media signals, and the streaming media conversion module is further configured to use the television signal Converting the decoded television signal into a streaming media signal; and transmitting the converted streaming media signal to one or more of the at least two display terminals through the first audio and video transceiver module.
10、 根据权利要求 6所述的系统， 其特征在于， 所述第一音视频 收发模块和第二音视频收发模块为蓝牙设备。  10. The system according to claim 6, wherein the first audio and video transceiver module and the second audio and video transceiver module are Bluetooth devices.
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