CN102740015B - Television system playing different channels simultaneously - Google Patents

Television system playing different channels simultaneously Download PDF

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Publication number
CN102740015B
CN102740015B CN 201110092113 CN201110092113A CN102740015B CN 102740015 B CN102740015 B CN 102740015B CN 201110092113 CN201110092113 CN 201110092113 CN 201110092113 A CN201110092113 A CN 201110092113A CN 102740015 B CN102740015 B CN 102740015B
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shutter glasses
channel
channels
television
different
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CN 201110092113
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Chinese (zh)
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CN102740015A (en
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巫士虔
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鸿富锦精密工业(深圳)有限公司
鸿海精密工业股份有限公司
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Abstract

本发明涉及一种同时播放不同频道的电视系统,其包括一液晶电视、一机顶盒和两个快门眼镜。 The present invention relates to a television system displays the different channels at the same time, includes a liquid crystal television, a set-top box and two shutter glasses. 该电视系统控制液晶电视连续交错的显示两个频道的画面及保持静音状态,机顶盒控制各快门眼镜收看其相应的视频和同步播放该视频对应的音频,两个用户通过其佩戴的快门眼镜收看液晶电视屏幕显示的不同频道画面及通过在快门眼镜上连接一耳机来同步收听不同频道显示画面对应的音频。 The television control system LCD screen display two consecutive interleaved channels and muted, the set top box controls each of the shutter glasses and viewing the corresponding video synchronous playing audio corresponding to the video, through which two users LCD shutter glasses worn by TV screen display screen and the different channels by connecting a headset to listen to the shutter glasses to synchronize a display screen corresponding to different audio channels. 故,不同用户佩戴该快门眼镜通过共有的一液晶电视可同时收看自己喜好的不同频道,从而大大方便了用户,省去了购买多台电视的麻烦。 Therefore, the shutter glasses worn by different users through a common LCD TV while watching their favorite different channels, which greatly facilitates the user, eliminating the need to purchase multiple TVs trouble.

Description

同时播放不同频道的电视系统 While playing different channels of TV system

技术领域 FIELD

[0001] 本发明涉及一种电视系统,更具体地,涉及一种同时播放不同频道的电视系统。 [0001] The present invention relates to a television system, more particularly, to a system of playing different TV channels at the same time.

背景技术 Background technique

[0002] 现有的数字电视都结合机顶盒使用,以得到高清的显示画面,然而,用户通过该电视一次只能收看一个频道,当多个家庭成员想在同一时间看自己喜欢的节目时根本就无法满足,例如,母亲当时想看美容方面的频道,父亲想看足球比赛的频道,也有的家庭买了多台电视,然而这样需要很大的成本去购买电视。 [0002] in conjunction with existing digital TV set-top boxes are used to obtain high-definition display screen, however, you can only watch one channel through the TV, when multiple family members would like to see their favorite programs at the same time simply unable to meet, for example, I want to see channels mother was cosmetic, my father wanted to see a football game channels, and some families buy more than one TV, but this requires a large cost to buy a TV.

发明内容 SUMMARY

[0003] 为了解决上述存在的问题,本发明的目的在于,提供一种同时播放不同频道的电视系统,。 [0003] In order to solve the above problems, an object of the present invention to provide a television system displays the different channels simultaneously.

[0004] 本发明一种同时播放不同频道的电视系统,该电视系统控制液晶电视连续交错的切换显示两个频道的画面及保持静音状态,机顶盒控制各快门眼镜收看其相应的视频和同步播放该视频对应的音频,两个用户通过其佩戴的快门眼镜收看液晶电视屏幕显示的不同频道画面及通过在快门眼镜上连接一耳机来同步收听不同频道显示画面对应的音频。 [0004] The present invention provides a different channel while playing television system, the television control system continuously interlaced switch LCD display screen and two channels muted, the set top box controls each of the shutter glasses and viewing the corresponding video synchronous playback of the corresponding audio video, two user television screen display LCD shutter glasses worn by its different channels and by connecting a screen on the headset to listen to the shutter glasses to synchronize the display screen corresponding to the different audio channels. 故, 不同用户佩戴该快门眼镜通过共有的一液晶电视可同时收看自己喜好的不同频道,从而大大方便了用户,省去了购买多台电视的麻烦。 Therefore, the shutter glasses worn by different users through a common LCD TV while watching their favorite different channels, which greatly facilitates the user, eliminating the need to purchase multiple TVs trouble.

附图说明 BRIEF DESCRIPTION

[0005] 图1是本发明一同时播放不同频道的电视系统的硬件结构示意图; [0005] FIG. 1 is a schematic diagram of a hardware configuration of the television system of the present invention, different channels at the same time a player;

[0006] 图2是图1电视系统的机顶盒的硬件结构示意图;及 [0006] FIG. 2 is a hardware configuration schematic diagram of a set top box television system of FIG. 1; and

[0007] 图3是图1电视系统的快门眼镜的硬件结构示意图。 [0007] FIG. 3 is a hardware configuration schematic diagram of the shutter glasses television system 1 of FIG.

[0008] 主要元件符号说明 [0008] Main reference numerals DESCRIPTION

[0009] [0009]

Figure CN102740015BD00031

Figure CN102740015BD00032

Figure CN102740015BD00041

[0010] 如下具体实施方式将结合上述附图进一步说明本发明。 [0010] The following specific embodiments in conjunction with the accompanying drawings, the present invention is described.

具体实施方式 Detailed ways

[0011] 下面结合附图,对本发明同时播放不同频道的电视系统作进一步的详细描述。 [0011] DRAWINGS The present invention different channels while playing a television system is described in further detail.

[0012] 图1是本发明一同时播放不同频道的电视系统的硬件结构示意图。 [0012] FIG. 1 is a schematic diagram of a hardware configuration of the television system of the present invention, a different channel at the same time play. 该同时播放不同频道的电视系统(以下简称"电视系统")1包括一液晶电视2、一遥控器3、一机顶盒4及两个快门眼镜5。 While playing the different channels of the television system (hereinafter referred to as "television system") 1 includes a liquid crystal television 2, a remote controller 3, an STB 4 and 5 two shutter glasses. 该遥控器3用于响应用户的输入操作远端控制液晶电视2和机顶盒4,该遥控器3面板上设置有一特殊按键30,而现有的频道选择及音量控制等按键图中未示出。 The remote controller 3 to the distal end in response to user input operation controls the liquid crystal television set-top boxes 2 and 4, the remote controller 30 is provided with a special button on the panel 3, the conventional channel selection and volume control keys, not shown in FIG. 该特殊按键30用于当响应用户的按压操作时,该电视系统1进入一同时播放不同频道状态,该液晶电视2控制其扬声器(图中未示)不工作,S卩如静音的状态。 The special key 30 is used when the pressing operation in response to the user when the television system enters a state while playing a different channel, a control of the liquid crystal television 2 which speakers (not shown) does not work, S Jie as mute state. 在本发明的另一实施方式中,该电视系统1无需包括该遥控器3,该特殊按键30设置在液晶电视2的面板上。 In another embodiment of the invention, the television system 1 need not include the remote control 3, the special key 30 is provided on the liquid crystal panel 2 of the TV.

[0013] 该机顶盒4电连接该液晶电视2,用于从外界(如广播电视网络)获取电视频道的音视频数据流控制液晶电视2和快门眼镜5。 [0013] The STB 4 is electrically connected to the LCD 2, for obtaining audio and video data stream controls the liquid crystal television channel TV 2 and the shutter glasses 5 from the outside (e.g., a broadcast television network). 该机顶盒4与该两个快门眼镜5为无线连接, 如以红外线方式。 The STB 4 is a wireless connection to the two shutter glass 5, as the infrared mode. 每一快门眼镜5都用特殊材料制成。 Each shutter glasses 5 are made of special materials. 当该电视系统1在该同时播放不同频道状态下响应用户的输入操作接收到两个频道的输入信号时,例如,通过遥控器3或液晶电视2的两个按键响应用户的两个频道选择操作,该机顶盒4从外界获取两个频道的音 When the television system displays a different response to the channel status while the input operation when a user input signal is received in two channels, for example, two channels in response to the user via the remote controller 3 or two buttons to select the operation of the liquid crystal television 2 the set-top box 4 to obtain two channels of sound from the outside world

Figure CN102740015BD00042

视频数据流,控制液晶电视2的屏幕连续交错的切换显示两个频道的视频画面,即在两个频道画面之间频繁切换显示。 Video data stream 2 controls the liquid crystal television screen switching display of the two successive channels interlaced video screen, i.e., frequent switching between two channels displayed screen. 在本实施方式中,机顶盒4还将同时播放的两个频道分别定义为频道1及频道2,例如A为频道1的画面,B为频道2的画面,那么机顶盒4控制液晶电视2播放的画面为ABABAB......。 In the present embodiment, the two channels will simultaneously STB 4 displays a screen are defined as channel 1 and channel 2, channel 1, for example, a screen A, B is the channel of the screen 2, the STB 4 controls the LCD TV 2 as ABABAB ....... 同时,液晶电视2不会播出两频道的声音,即为静音。 Meanwhile, 2 LCD TV will not broadcast two channels of sound, that is muted.

[0014] 该液晶电视2的屏幕刷新频率为大于或等于120Hz,其在该同时播放不同频道状态下,屏幕刷新频率为120Hz的液晶电视2才能确保每一个频道为60Hz的刷新频率,使得每个频道的画面播放都是清晰的。 [0014] 2 of the liquid crystal television screen refresh frequency equal to or greater than 120Hz, which is in the playing state different channels at the same time, the screen refresh rate of 120Hz LCD TV channel 2 to ensure that each of the refresh frequency of 60Hz, so that each picture playback channels are clear.

[0015] 该机顶盒4还根据两个频道的切换显示产生控制快门眼镜5连续交错开关的同步控制信号,该同步控制信号与液晶电视2所播放的画面同步。 [0015] The STB 4 controls the shutter eyeglasses 5 also generates the synchronization control signal in accordance with a continuous-interleaved switching switching displays two channels, the synchronization control signal to the liquid crystal television 2 picture played synchronized. 在本实施方式中,该同步控制信号为连续交错的高低电平,例如,高电平与液晶电视2播放频道1的画面同步,低电平与液晶电视2播放频道2的画面同步。 In the present embodiment, the synchronization control signal is a continuous alternating high and low levels, e.g., high liquid crystal television 2 displays a picture synchronization channel, a low level with the liquid crystal screen of the television 2 displays the channel 2 synchronized. 机顶盒4还从每个频道的音视频数据流中提取音频数据流,并对所获取的音频数据流进行编码。 STB 4 also extracts the audio stream from the audio and video data streams in each channel, and the acquired audio data stream to be encoded. 该机顶盒4将该同步控制信号及编码后的音频数据流通过无线方式传送给每一快门眼镜5。 The STB 4 the audio data stream and a synchronization control signal transmitted to each encoded shutter glasses 5 wirelessly. 每一快门眼镜5根据该同步控制信号控制快门开关58的开关,并从接收到的音频数据流中获取与该快门眼镜5匹配的音频通过一耳机(图中未示)进行播放。 5 Each of the shutter glasses based on the sync switch control signal controls the shutter switch 58, and acquires an audio matching the shutter glasses 5 via a headset (not shown) for audio playback from the received data stream.

[0016] 每一快门眼镜5与液晶电视2所播放的频道--标示对应。 [0016] Each of the liquid crystal shutter glasses 5 television broadcast channels 2 - designate corresponding. 例如,快门眼镜A与所播放的频道1对应,快门眼镜B与所播放的频道2对应。 For example, the shutter glasses A and the channel 1 corresponding to the played, the shutter glasses B and channel 2 corresponds to the played. 在本发明的一实施方式中,每一快门眼镜5的频道标示在出厂设置时实现。 In one embodiment of the present invention, each channel is indicated to achieve the shutter glasses 5 at the factory setting. 在本发明的另一实施方式中,各快门眼镜5在该同时播放不同频道状态下接收到两个频道的输入信号时,获取一频道标示。 In another embodiment of the present invention, each of the shutter glasses 5 receives input signals of two channels at the same time playing different channel status, obtaining a channel designator. 例如,用户输入频道1的选择信号时,快门眼镜A获取频道1的标示;用户输入频道2的选择信号时,快门眼镜B获取频道2的标示。 For example, the user inputs a channel selection signal is 1, the shutter glasses A marked 1 acquires the channel; the user inputs a channel selection signal 2, the shutter glasses 2 B acquires channel designator. 液晶电视2所播放的画面为频道1的画面时,每一快门眼镜5 接收到同步控制信号为高电平,该快门眼镜A开启,使用快门眼镜A的用户可看到频道1的画面,而快门眼镜B关闭,用快门眼镜B的用户不能看到频道1的画面;液晶电视2所播放的画面为频道2的画面时,每一快门眼镜5接收到同步控制信号为低电平,该快门眼镜A关闭,使用快门眼镜A的用户不能看到频道2的画面,而快门眼镜B开启,使用快门眼镜B的用户可看到频道2的画面。 LCD TV broadcast channel picture screen 2 is 1, each of the shutter glasses 5 receives the synchronization control signal is high, the opening of the shutter glasses A, user A using shutter glasses can see the picture of the channel 1, and B off the shutter glasses, the shutter glasses with the user B can not see the picture of the channel 1; LCD screen 2 displays a screen when the channel 2, each of the shutter glasses 5 receives the synchronization control signal is low, the shutter a close glasses, using shutter glasses a user can not see the screen of the channel 2, B and open the shutter glasses, shutter glasses user B can see the screen of the channel 2. 需要说明的是,在本发明实施方式中的快门眼镜5与3D快门眼镜不同在于:快门眼镜5的左右眼镜片同时开或关,而3D快门眼镜的左右眼镜片为交错式开关。 Incidentally, in the embodiment of the present invention, the 3D shutter glasses shutter glasses 5 except that: the left and right shutter glasses while the spectacle lens 5 on or off, the 3D shutter glasses, the left and right spectacle lenses is interleaved switch.

[0017] 在本实施方式中,机顶盒4在对音频数据流进行编码时,对每一音频数据包添加对应的频道标示,相应的快门眼镜5在对所接收到的音频数据进行解码的过程中,如果音频数据包的频道标示与快门眼镜5的频道标示匹配,则播放该音频数据包,否则不播放该音频数据包。 [0017] In the present embodiment, the STB 4 when the audio data stream is encoded for each audio channel corresponding to the added data packet indicated, the corresponding shutter glasses 5 decodes the received audio data in the process If channel audio data packets marked with the channel designation of the shutter glasses 5 match, play the audio packet, or does not play the audio packet. 例如,一音频数据包的频道标示为频道1,则快门眼镜A播放,而快门眼镜B不播放;而音频数据包的频道标示为频道2,则快门眼镜A不播放,而快门眼镜B播放。 For example, channel one audio packets marked as channel 1, the shutter glasses A playback, and the shutter glasses B without play; and a channel audio packets marked as channel 2, the shutter glasses A does not play, the shutter glasses B playback.

[0018] 根据上面的描述,在本发明实施方式中,在液晶电视2交错播放两个频道时,用户通过使用快门眼镜5可清楚的观看其中一频道的画面,并能接听到该频道的音频。 [0018] From the above description, in the embodiment of the present invention, the liquid crystal television 2 displays two interleaved channels, the user can clearly viewed through 5 wherein a channel of the screen using shutter glasses, and can then hear the audio of the channel . 例如通过快门眼镜A可以清楚的观看频道1的画面,并能接听到该频道1的音频;而通过快门眼镜B可以清楚的观看频道2的画面,并能接听到该频道2的音频。 For example, can be clearly viewed through the shutter glasses A channel screen 1, and can then hear the audio channel 1; and a screen can be clearly viewed through the shutter glasses 2 channel B, and can then hear the audio channel 2.

[0019] 如图2所示,该机顶盒4进一步包括一音频处理器41、一同步侦测器42、一BMC( "Biphase Mark Code"双相符号编码)编码器43、一标头资料控制单元44、一多路复用器45及一无线发射器46。 [0019] 2, the STB 4 further comprising an audio processor 41, a sync detector 42, a BMC ( "Biphase Mark Code" bi-phase mark coding) encoder 43, a data header control unit 44, a multiplexer 45, and a wireless transmitter 46.

[0020] 当该机顶盒4进入该同时播放不同频道状态时,该音频处理器41用于响应用户的输入操作同时接收并处理两路音频流,对每一音频数据包添加对应的频道标示。 [0020] When the STB 4 enters the state of different channels simultaneously playing the audio processor 41 in response to user input while receiving and processing two audio streams, each audio data packet is added to the corresponding channel label. 该同步侦测器42用于响应用户的输入操作同时侦测两路视频信号中的视频同步信号。 The synchronous detector 42 in response to user input video signals simultaneously detect two video sync signal. 该标头资料控制单元44根据视频同步信号的标头信息控制液晶电视2的屏幕连续交错的切换显示两个频道的视频画面及及产生一与液晶电视播放画面同步的同步控制信号。 The header data control unit 44 controls the liquid crystal television screen 2 according to the header information of the successive interlaced video sync signal switching display of the two channels, and video images and generating a liquid crystal television screen synchronous control signal synchronized. 同时,液晶电视2为静音状态。 Meanwhile, the liquid crystal television 2 is muted. 该BMC编码器43用于将两路音频数据流和该同步控制信号混合在一起进行编码。 The BMC encoder 43 for two channels of audio data streams and said synchronization control signal for encoding mixed. 该多路复用器45对编码的两频道数据流进行再复用,实现两频道间的动态带宽分配。 The multiplexer 45 the encoded data stream of the two channel re-multiplexing, dynamic bandwidth allocation between the two channels. 该无线发射器46把复用的数据通过无线方式传送到两个快门眼镜5,例如以红外线方式。 The wireless transmitter 46 transmits the multiplexed data by radio to two shutter glasses 5, for example of infrared rays.

[0021] 如图3所示,每一快门眼镜5用于用户观看电视节目时佩戴,每一快门眼镜5进一步包括一无线接收器50、一BMC译码器51、一频率回复与相位锁频器52、一频道标示获取单兀53、一影像同步产生器54、一1决门开关55、一频道判断单兀56、一数模转换器57及一音频输出接口58。 [0021] 3, 5 of each of the shutter glasses worn by a user for watching a television program, each of the shutter glasses 50 5 further comprising, a BMC decoder 51, a clock recovery and a phase-locked wireless receiver 52, a single channel designator obtain Wu 53, a video sync generator 54, a switch 55 a decision gate, a single channel is determined Wu 56, a digital to analog converter 57 and an audio output interface 58.

[0022] 该无线接收器50用于接收机顶盒4的两路音频数据流和该同步控制信号。 [0022] The radio receiver 50 for receiving a two-way set-top box and the audio data stream synchronous control signal 4. 该BMC 译码器51用于译码该两路音频数据流和该同步控制信号到影像同步产生器54和频道判断单元56。 The BMC decoder 51 for decoding the two channels of audio data streams and said synchronization control signal to the video sync generator 54 and channel determination unit 56. 该频率回复与相位锁频器52用以将传送端频率信号回复后并产生四倍频的频率给该BMC译码器51做解调来提供更精准的同步。 The frequency responses and phase frequency detector 52 to the rear end of the transmission frequency signal and generating a frequency quadrupled reply to the BMC demodulating decoder 51 do provide more accurate synchronization. 该影像同步产生器54其通过该同步控制信号控制快门开关58,使得该快门眼镜5同步输出一频道的画面和遮住另一频道的画面。 The video sync generator 54 which is synchronized picture and output picture cover a channel of another channel by the synchronization control signal controls the shutter switch 58, so that the shutter glasses 5.

[0023] 该频道标示获取单元53在该同时播放不同频道状态下接收两个频道的输入信号时,获取频道标示。 [0023] The channel label acquisition unit 53 receives two input signals of different channels in the playing state while the lower channel, denoted channel acquisition. 在本发明的另一实施方式中,每一快门眼镜5的频道标示在出厂设置时实现,故无需该频道标示获取单元53。 In another embodiment of the present invention, each channel 5 is indicative of the shutter glasses implement set at the factory, so no marking the channel acquisition unit 53. 每一快门眼镜5与液晶电视2所播放的频道一一标示对应,当液晶电视2所播放的画面为一频道的画面时,该快门开关58根据接收到的同步控制信号控制该频道标示的快门眼镜5开启和非该频道标示的快门眼镜关闭。 5 and the liquid crystal shutter glasses each television broadcast channel 2 designate corresponding eleven, when the liquid crystal television 2 displays a screen picture of a channel, the shutter of the shutter switch 58 marked channel received synchronization control signal in accordance with glasses and a non-opening of the channel 5 labeled shutter glasses off. 该频道判断单元56用于判断及获取与该开启的快门眼镜5的频道标示匹配的音频数据。 The channel determination unit 56 for determining and obtaining the channel opening shutter glasses 5 marked audio data matching. 该数模转换器57用于将匹配的音频数据转换为人耳可听到的模拟音频数据到音频输出接口58。 The digital to analog converter 57 for converting audio data matching the human ear can hear analog audio data to the audio output interface 58. 用户可通过连接该音频输出接口58的耳机收听相应频道的音频。 Users connected to the audio output through headphones to listen to the audio interface 58 of the corresponding channel.

[0024] 因此,本发明的电视系统1控制液晶电视2连续交错的切换显示两个频道的画面及保持静音状态,机顶盒4控制各快门眼镜5收看其相应的视频和同步播放该视频对应的音频,两个用户通过其佩戴的快门眼镜5收看液晶电视2屏幕显示的不同频道画面及通过在快门眼镜5上连接一耳机来同步收听不同频道显示画面对应的音频。 [0024] Thus, a television system according to the present invention controls the liquid crystal television 2 consecutive interlaced display switches and two channels muted, STB 4 5 controls each of the shutter glasses and viewing the corresponding video synchronous playing audio corresponding to the video , two LCD TV users through shutter glasses worn by which 52 different channels appear on the screen and the screen is connected via a headphone 5 in the shutter glasses to synchronize a display screen corresponding to listen to different audio channels.

[0025] 尽管对本发明的优选实施方式进行了说明和描述,但是本领域的技术人员将领悟至IJ,可以作出各种不同的变化和改进,这些都不超出本发明的真正范围。 [0025] While preferred embodiments of the present invention have been illustrated and described, those skilled in the art will understand to IJ, can make various changes and modifications, not departing from the true scope of the present invention. 因此期望,本发明并不局限于所公开的作为实现本发明所设想的最佳模式的具体实施方式,本发明包括的所有实施方式都有所附权利要求书的保护范围内。 It is therefore desirable, the present invention is not limited to the particular embodiment disclosed as the best mode contemplated by the present invention, all embodiments of the present invention are included within the scope of the appended claims the book.

Claims (6)

1. 一种同时播放不同频道的电视系统,其包括一液晶电视、一机顶盒和两个快门眼镜, 其特征在于, 该机顶盒,用于响应用户的输入操作进入一同时播放不同频道状态及接收两个频道的输入信号,获取该两个频道的音视频数据流,控制液晶电视的屏幕连续交错的切换显示两个频道的视频画面及产生一与液晶电视播放画面同步的同步控制信号,编码提取音频数据流,对每一音频数据包添加对应的频道标示,及将编码后的音频数据和该同步控制信号以无线方式传送给两个快门眼镜; 每一快门眼镜,包括有一快门开关,该每一快门眼镜与所播放频道的频道标示一一对应,该快门眼镜根据该同步控制信号控制该快门开关的开启及关闭,并播放与其频道标示匹配的音频数据; 该每一快门眼镜还包括: 无线接收器,用于接收该编码后的音频数据流和该同步 A system play different TV channels at the same time, it includes a liquid crystal television, a set-top box and two shutter glasses, wherein the set-top boxes, in response to a user's input into the operation while playing a different channel receiving state and two input signal channels, acquisition of the streaming audio and video data of two channels, the continuous control of the LCD screen of the television channels interleaved switching display of two video images and generating a liquid crystal television screen synchronized synchronization control signal, extracting encoded audio data streams, each audio packet corresponding channel label is added, and the audio data and the synchronization control signal is wirelessly transmitted to the shutter glasses two encoded; each shutter glasses, comprising a shutter switch, each of the channel shutter glasses are marked correspond broadcasting channels, the synchronous control signal to the shutter glasses control opening and closing of the shutter switch and its channel play audio data according to the designated matching; each of the shutter glasses further comprising: a wireless receiver , an audio data stream and for receiving the encoded synchronization of the 制信号; BMC译码器,用于译码该编码后的音频数据流和该同步控制信号; 频率回复与相位锁频器,用于提供四倍频的频率给该BMC译码器进行解调以获得音视频的更精准的同步; 影像同步产生器,用于接收该译码后的音频数据流和该同步控制信号并控制该快门开关;及频道判断单元,用于判断及获取与开启的该快门眼镜的频道相匹配的音频数据。 System signal; BMC decoder, an audio data stream for the coding and decoding of the synchronization control signal; a frequency and phase locked responses, providing four octave frequency for demodulating decoder to the BMC to obtain a more accurate synchronization of audio and video; video sync generator, the audio data stream and for receiving the decoding of the synchronization control signal and controlling the shutter switch; and a channel determination unit for determining and acquiring a turn the shutter glasses to match channel audio data.
2. 根据权利要求1所述的同时播放不同频道的电视系统,其特征在于,还包括一遥控器和一特殊按键,该特殊按键位于遥控器或液晶电视上,该特殊按键用于响应用户的按压操作使得该电视系统进入该同时播放不同频道状态。 According to claim 1 while the television system displays the different channels, characterized by further comprising a remote control and a special key, the special key is located on the remote control or a liquid crystal television, the user's response to the special key pressing operation so that the television system enters the state of different channels while playing.
3. 根据权利要求1所述的同时播放不同频道的电视系统,其特征在于,该液晶电视的屏幕刷新频率大于或等于120Hz。 3. At the same according to claim 1 play a different channel television system, characterized in that the LCD screen refresh frequency is greater than or equal to 120Hz.
4. 根据权利要求1所述的同时播放不同频道的电视系统,其特征在于,该机顶盒进一步包括一BMC编码器,其用于将两路音频数据流和该同步控制信号混合在一起进行编码。 Meanwhile according to claim 1 the different channels of TV broadcast system, characterized in that the set-top box further comprises a BMC encoder for mixing two audio data streams and said synchronization control signal is encoded with.
5. 根据权利要求1所述的同时播放不同频道的电视系统,其特征在于,当该电视系统进入该同时播放不同频道状态时,该液晶电视为静音。 Meanwhile according to claim 1 different channels broadcast television system, wherein, when the television system enters the state of different channels simultaneously displays, liquid crystal TV is muted.
6. 根据权利要求1所述的同时播放不同频道的电视系统,其特征在于,该同步控制信号为连续交错的高低电平,高电平与液晶电视播放一频道的画面同步,低电平与液晶电视播放另一频道的画面同步。 According to claim 1 while the television system displays the different channels, wherein the synchronization control signal is a continuous interleaved high and low, the high level of the liquid crystal screen of a television channel is synchronized with the low level LCD screen television to another channel synchronization.
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