CN103813203A - Household television multi-screen display system - Google Patents
Household television multi-screen display system Download PDFInfo
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- CN103813203A CN103813203A CN201410064565.6A CN201410064565A CN103813203A CN 103813203 A CN103813203 A CN 103813203A CN 201410064565 A CN201410064565 A CN 201410064565A CN 103813203 A CN103813203 A CN 103813203A
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Abstract
The invention discloses a multi-screen display system for a household television, which comprises: the system comprises a splitter, at least N high frequency heads, at least N demodulators, a main chip, a wifi module and a display screen; the branching unit is connected with each high frequency head and is used for branching the received external broadcast television signal into N paths of radio frequency signals; each high frequency head is correspondingly connected with a demodulator respectively, and the high frequency heads are used for tuning the radio frequency signals into intermediate frequency signals; each demodulator is used for demodulating the intermediate frequency signal into a transmission data stream; the main chip is used for decoding each transmission data stream into audio and video signals, outputting one path of audio and video signals to the display screen, and compressing the other paths of audio and video signals into program data packets respectively; the wifi module is used for carrying out two-way communication with an external mobile terminal and sending the program data packet to the mobile terminal. By applying the technical scheme of the invention, the home television and the mobile equipment can play different television programs simultaneously without the support of the Internet, and the played programs are not interfered with each other.
Description
Technical field
The present invention relates to TV technology, relate in particular to a kind of family TV Multi-screen display system.
Background technology
Be limited by the restriction of the family wireless communication technology and intelligent mobile terminal development, early stage, multi-channel demodulator can only transmit different TV programme to traditional tv by wired mode, along with scientific and technological development, intelligent mobile terminal and wifi direct rapid technological improvement are used mobile terminal connecting wireless network to watch online video frequency program to become common thing in parlor.But at present after mobile terminal connecting wireless network, the video resource of only can accessing video website watching network to upload, can not be real-time watch TV programme, even if live program on network also exists time delay, impression is watched in impact.
In addition, as the utility model patent that the patent No. is CN201220213851.0, can watch by mobile terminal the program of television set, but the content that mobile control end shows is identical with the content that TV shows, has the possibility of phase mutual interference.And this Technology Need accesses the Internet by wireless connections, obtain the content on server, also being connected between TV and server just of its wifi direct, cannot directly be connected with control end by wifi direct.And prior art can utilize multi-channel demodulator technology, use a Set Top Box, utilize the many covers of other wire rods outputs such as AV or HDMI TV programme; Utilize picture-in-picture techniques, on same video screen, play different TV programme; Utilize wifi direct technology, make mobile phone and the multi-screen interactive technology of the same picture of televising.When but prior art can not meet mobile device and parlor television identical, watch different TV programme, and wireless image transmission can only point-to-pointly carry out.
Summary of the invention
Watch the defect of different TV programme for cannot realize mobile device and parlor television identical in prior art time, the embodiment of the present invention proposes a kind of family TV Multi-screen display system, in conjunction with the Compression Transmission Technology of multi-channel demodulator technology and rgb signal, make mobile device and parlor TV have independently program source, realize the demand of simultaneously watching different TV programme.
The embodiment of the present invention provides family's TV Multi-screen display system, comprising: splitter, at least N tuner, at least N demodulator, master chip, wifi module and display screen; Wherein, N is more than or equal to 2 integer; Described splitter is connected with each described tuner respectively, for the external broadcasting TV signal of reception is shunted to N road radiofrequency signal, sends a road radiofrequency signal respectively to each described tuner; Each described tuner be connected respectively one described in demodulator, described tuner is for the described radiofrequency signal of tuning its reception, and the intermediate-freuqncy signal of tuning rear acquisition is sent to the described demodulator corresponding with it; Each described demodulator is connected with described master chip, for the described intermediate-freuqncy signal of its reception of demodulation, and the transmitting data stream obtaining after demodulation is sent to described master chip; Described master chip is connected with described wifi module and display screen respectively, each described transmitting data stream decoding is used for decoding, obtain respectively N road audio-video signal, to wherein audio-video signal described in a road of display screen output, and by the boil down to program data packets respectively of audio-video signal described in all the other N-1 roads; Wherein, described in a road, audio-video signal comprises: a road RGB picture signal and Yi corresponding to it road audio signal; Described wifi module is for carrying out two-way communication with outside mobile terminal, and the playing request sending according to described mobile terminal, sends to described mobile terminal by described program data packets corresponding described playing request.
Further, described family TV Multi-screen display system also comprises: multiple mobile terminals, described mobile terminal is connected with described wifi module communication by wifi network, be used for receiving described program data packets, described program data packets decoding is reduced into a road audio-video signal, and plays the audio-video signal of described reduction.
Further, the rendition list that described mobile terminal also sends for receiving wifi module, and send playing request according to described the rendition list to described wifi module, described playing request comprises the arbitrary program in described the rendition list.
Further, described master chip is also for according to described playing request, controls tuner described in one of them and receives the radiofrequency signal that described program is corresponding.
Further, described program data packets is the packet that wifi direct bandwidth allows, and its form is the serial data of USB2.0 agreement.
Therefore, implement the embodiment of the present invention, there is following beneficial effect:
Family's TV Multi-screen display system that the embodiment of the present invention provides, utilize multi-channel demodulator technology, splitter is first shunted to external broadcasting TV signal N road radiofrequency signal, be provided with N tuner and N demodulator simultaneously, each road radiofrequency signal through the demodulation of the tuning of a tuner and a demodulator, obtains N road transmitting data stream respectively.Master chip each transmitting data stream of decoding respectively, obtains N road audio-video signal, and wherein, a road audio-video signal comprises: a road RGB picture signal and Yi corresponding to it road audio signal.A master chip wherein road audio-video signal sends to display screen, plays for display screen, then by all the other N-1 road audio-video signals N-1 program data packets of boil down to respectively.The wifi module that outside mobile terminal utilizes wifi direct technology directly to connect in native system is carried out two-way communication, and sends playing request to master chip, and program data packets corresponding this playing request is sent to mobile terminal by master chip control wifi module.Visible, tv display screen in technical solution of the present invention from outside mobile terminal by adopting different tuners and demodulator to provide program source for it, the program that they see is not interfere with each other, and without the support of the Internet, only need that wifi network is set and can realize the program source transmission of a point-to-multipoint.
Further, Multi-screen display system also comprises multiple mobile terminals, mobile terminal is connected with wifi module communication by wifi network, exploded view is as transmission means, reach a bit to multicast communication, make tv display screen and multiple mobile terminal watch different TV programme, and each program source does not interfere with each other simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of family provided by the invention TV Multi-screen display system;
Fig. 2 is the optional structural representation of another kind of family provided by the invention TV Multi-screen display system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, be a kind of family provided by the invention TV Multi-screen display system, comprising: splitter 101, at least N tuner 102, at least N demodulator 103, master chip 104, wifi module 105 and display screen 106.Wherein, N is more than or equal to 2 integer.
In the present embodiment, for structure of the present invention and operation principle are better described, the value of N is 3, as shown in Figure 1, tuner 102 comprises: tuner 1021, tuner 1022 and tuner 1023, it is connected respectively a demodulator 103, as tuner 1021 is connected with demodulator 1031.
Splitter 101 is connected with each tuner 102 respectively, sends a road radiofrequency signal respectively for the external broadcasting TV signal of reception is divided into N road radiofrequency signal to each tuner.As broadcast television signal is divided into 3 tunnel radiofrequency signals by splitter 101 in the present embodiment, to the each road that sends of tuner 1021, tuner 1022 and tuner 1023, make each tuner all have independently program source, thereby reach mutually non-interfering effect.
Tuner 102 is for the radiofrequency signal of tuning its reception, and the intermediate-freuqncy signal of tuning rear acquisition is sent to the demodulator corresponding with it 103.In the present embodiment, the intermediate-freuqncy signal after tuning is sent to demodulator 1031 by tuner 1021, and the intermediate-freuqncy signal after tuning is sent to demodulator 1032 by tuner 1022, and the intermediate-freuqncy signal after tuning is sent to demodulator 1033 by tuner 1023.
Each demodulator 103 is connected with master chip 104 respectively, for the intermediate-freuqncy signal of its reception of demodulation, and the transmitting data stream obtaining after demodulation is sent to master chip 104.As the transmitting data stream after demodulation is sent to master chip 104 by demodulator 1031.
Master chip 104 is connected with wifi module 105 and display screen 106 respectively, for each transmitting data stream decoding of its reception of decoding, obtain respectively N road audio-video signal, to wherein audio-video signal described in a road of display screen output, and by all the other N-1 road audio-video signals boil down to program data packets respectively; Wherein, a road audio-video signal comprises: a road RGB picture signal and Yi corresponding to it road audio signal.
In the present embodiment, the transmitting data stream 3 that master chip 104 is decoded respectively the transmitting data stream 1 being sent by demodulator 1031, the transmitting data stream 2 being sent by demodulator 1032 and sent by demodulator 1033, obtains 3 road audio-video signals successively.Master chip 104 is to a wherein road audio signal of display screen output, make parlor TV function normal play program, by all the other two-way audio-video signals boil down to program data packets respectively, in the time that wifi module 105 and outside mobile terminal carry out two-way communication, the playing request sending according to mobile terminal, sends to mobile terminal by program data packets corresponding playing request.As tuner 1021 and demodulator 1031 provide program source for parlor TV, the large-size screen monitors smart mobile phone that tuner 1022 and demodulator 1032 are user provides program source, and tuner 1023 and demodulator 1033 provide program source for mobile flat-panel devices.Because three adopts independently program source, its TV programme of watching does not separately interfere with each other, and has met the demand that parlor TV and mobile device are watched different programs.
In the present embodiment, master chip compression Video & Audio signal is program data packets, can adopt the Compression Transmission Technology of rgb signal, and this program data packets is the packet that wifi direct bandwidth allows, and its form is the serial data of USB2.0 agreement.
Wifi module 105 is carried out two-way communication with outside mobile terminal, the playing request that mobile terminal receive sends, and program data packets corresponding this playing request is sent to mobile terminal.
In the present embodiment, wifi module 105 can be set up wifi network with multiple outside mobile terminals, realizes radio communication.Master chip 104 is obtaining after the rendition list, can this rendition list be synchronized to the each mobile terminal in wireless network by wifi module 105.Mobile terminal can, according to this rendition list, send playing request to master chip 104, and this playing request comprises the arbitrary program in the rendition list.Master chip 104 is according to this playing request, control one of them tuner and receive the radiofrequency signal that this program is corresponding, the tuner of this master chip control can be identical with the tuner that display screen 106 uses, make TV identical with the play content of mobile terminal, also can be different tuners, make both play different programs, adopt independently program source.
Display screen 106, for user provides high-quality TV programme, can be, but not limited to as LCDs or plasma panel.
One as the present embodiment is given an example, referring to Fig. 2, Fig. 2 is the optional structural representation of another kind of family's TV Multi-screen display system, this system also comprises multiple mobile terminals 107, establish a communications link by wifi network and wifi module 105 separately, for program receiving packet, program data packets decoding is reduced into a road audio-video signal, and plays the audio-video signal of this reduction.In this is given an example, each mobile terminal need to be installed application software, so that this program data packets decoding is reduced into RGB image and audio frequency, and be convenient to send playing request to master chip 104 the arbitrary program in request broadcast program list.This application software is applicable to android, and the different operating systems such as IOS or windows, expand the range of application of originally giving an example.
Therefore, implement the embodiment of the present invention, there is following beneficial effect:
Family's TV Multi-screen display system that the embodiment of the present invention provides, utilize multi-channel demodulator technology, splitter 101 is first shunted to external broadcasting TV signal N road radiofrequency signal, be provided with N tuner and N demodulator simultaneously, each road radiofrequency signal through the demodulation of the tuning of a tuner and a demodulator, obtains N road transmitting data stream respectively.Master chip 104 each transmitting data stream of decoding respectively, obtains N road audio-video signal, and wherein, a road audio-video signal comprises: a road RGB picture signal and Yi corresponding to it road audio signal.A master chip 104 wherein road audio-video signal sends to display screen 106, plays for display screen 106, then by all the other N-1 road audio-video signals N-1 program data packets of boil down to respectively.The wifi module 105 that outside mobile terminal utilizes wifidirect technology directly to connect in native system is carried out two-way communication, and sending playing request to master chip 104, master chip 104 is controlled wifi module program data packets corresponding this playing request is sent to mobile terminal.Visible, tv display screen in technical solution of the present invention from outside mobile terminal by adopting different tuners and demodulator to provide program source for it, the program that they see is not interfere with each other, and without the support of the Internet, only need that wifi network is set and can realize the program source transmission of a point-to-multipoint.
Further, Multi-screen display system also comprises multiple mobile terminals, mobile terminal is connected with wifi module communication by wifi network, exploded view is as transmission means, reach a bit to multicast communication, make tv display screen and multiple mobile terminal watch different TV programme, and each program source does not interfere with each other simultaneously.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (5)
1. family's TV Multi-screen display system, is characterized in that, comprising: splitter, at least N tuner, at least N demodulator, master chip, wifi module and display screen; Wherein, N is more than or equal to 2 integer;
Described splitter is connected with each described tuner respectively, for the external broadcasting TV signal of reception is shunted to N road radiofrequency signal, sends a road radiofrequency signal respectively to each described tuner;
Each described tuner be connected respectively one described in demodulator, described tuner is for the described radiofrequency signal of tuning its reception, and the intermediate-freuqncy signal of tuning rear acquisition is sent to the described demodulator corresponding with it;
Each described demodulator is connected with described master chip, for the described intermediate-freuqncy signal of its reception of demodulation, and the transmitting data stream obtaining after demodulation is sent to described master chip;
Described master chip is connected with described wifi module and display screen respectively, each described transmitting data stream decoding is used for decoding, obtain respectively N road audio-video signal, to wherein audio-video signal described in a road of display screen output, and by the boil down to program data packets respectively of audio-video signal described in all the other N-1 roads; Wherein, described in a road, audio-video signal comprises: a road RGB picture signal and Yi corresponding to it road audio signal;
Described wifi module is for carrying out two-way communication with outside mobile terminal, and the playing request sending according to described mobile terminal, sends to described mobile terminal by described program data packets corresponding described playing request.
2. family according to claim 1 TV Multi-screen display system, it is characterized in that, also comprise: multiple mobile terminals, described mobile terminal is connected with described wifi module communication by wifi network, be used for receiving described program data packets, described program data packets decoding is reduced into a road audio-video signal, and plays the audio-video signal of described reduction.
3. family according to claim 1 and 2 TV Multi-screen display system, is characterized in that,
The rendition list that described mobile terminal also sends for receiving wifi module, and send playing request according to described the rendition list to described wifi module, described playing request comprises the arbitrary program in described the rendition list.
4. family according to claim 3 TV Multi-screen display system, is characterized in that,
Described master chip is also for according to described playing request, controls tuner described in one of them and receives the radiofrequency signal that described program is corresponding.
5. family according to claim 1 and 2 TV Multi-screen display system, is characterized in that,
Described program data packets is the packet that wifi direct bandwidth allows, and its form is the serial data of USB2.0 agreement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410064565.6A CN103813203A (en) | 2014-02-25 | 2014-02-25 | Household television multi-screen display system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410064565.6A CN103813203A (en) | 2014-02-25 | 2014-02-25 | Household television multi-screen display system |
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| CN201410064565.6A Pending CN103813203A (en) | 2014-02-25 | 2014-02-25 | Household television multi-screen display system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104125499A (en) * | 2014-07-11 | 2014-10-29 | 小米科技有限责任公司 | Method and device for playing television programs |
| CN104270661A (en) * | 2014-10-24 | 2015-01-07 | 冠捷显示科技（厦门）有限公司 | System and displaying method for extended display equipment of intelligent television |
| CN104519394A (en) * | 2014-12-18 | 2015-04-15 | 小米科技有限责任公司 | Program playing method and program playing device |
| CN105100846A (en) * | 2015-09-02 | 2015-11-25 | 帕诺迪电器（深圳）有限公司 | One-to-two high-definition sharing household multimedia intelligent terminal |
| WO2016045447A1 (en) * | 2014-09-24 | 2016-03-31 | 浙江容贝电子科技有限公司 | Mobile satellite television reception system and reception method |
| CN105611201A (en) * | 2016-01-28 | 2016-05-25 | 广州易迩达电子有限公司 | Portable terrestrial digital television receiving device suitable for mobile terminal |
| WO2016078174A1 (en) * | 2014-11-20 | 2016-05-26 | 深圳Tcl数字技术有限公司 | Communication connection establishment method, data communication method and system |
| CN106851389A (en) * | 2017-02-24 | 2017-06-13 | 深圳市安拓浦科技有限公司 | The equipment that a kind of use WIFI transmits TV signals |
| WO2019015090A1 (en) * | 2017-07-20 | 2019-01-24 | 广州视源电子科技股份有限公司 | Signal transmission circuit of display apparatus, and display apparatus |
| CN113179425A (en) * | 2020-11-16 | 2021-07-27 | 北京路安世纪文化发展有限公司 | High-speed digital television signal transmission method |
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Application publication date: 20140521 |