CN102263998A - Receiving method and device for digital television - Google Patents
Receiving method and device for digital television Download PDFInfo
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- CN102263998A CN102263998A CN2011101925129A CN201110192512A CN102263998A CN 102263998 A CN102263998 A CN 102263998A CN 2011101925129 A CN2011101925129 A CN 2011101925129A CN 201110192512 A CN201110192512 A CN 201110192512A CN 102263998 A CN102263998 A CN 102263998A
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Abstract
The invention discloses a receiving method for digital television. The method comprises the following steps of: decoding a received digital television signal into an audio and video signal; and performing frequency division on the audio and video signal to obtain at least two paths, and transmitting the at least two paths of signals to a first display device and a second display device respectively. The invention also discloses a corresponding device. By the method and the device provided by the invention, the display of the digital television signal on a plurality of screens is realized.
Description
Technical field
The present invention relates to the communications field, specially refer to a kind of digital television receiving method and device.
Background technology
The remote controller of digital television receiving apparatus such as existing set-top box is mainly realized by the infrared ray receiver module, its theory of constitution is mainly: the user is after remote controller is pressed certain button, remote controller is gone out the signal of button object by infrared, after infrared ray receiver module on the digital television receiving apparatus receives this signal, handle accordingly according to key value after decoding, thereby realization is to the control of cable TV terminal device.
The remote controller of this technology is the simple key-press keyboard, and the user can only feed back on the screens such as television set, projecting apparatus by the control that remote controller carries out, and can't show on the screen terminal outside remote controller etc., promptly can't realize multihead display.
Summary of the invention
Main purpose of the present invention realizes that for a kind of digital television receiving method and device are provided multi-screen shows digital television signal simultaneously.
The present invention proposes a kind of digital television receiving method, comprising:
The digital television signal that receives is decoded as audio-video signal;
Described audio-video signal frequency division is at least two the tunnel, and is sent to first display unit and second display unit respectively.
Preferably, described the audio-video signal frequency division is at least two the tunnel, and is sent to first display unit respectively and second display unit comprises:
Audio-video signal behind the frequency division is encoded;
Audio-video signal behind the coding is transferred to second display unit.
Preferably, the audio-video signal after described will the coding transfers to second display unit and is specially:
Audio-video signal behind the coding is broadcasted.
Preferably, described digital television receiving method also comprises:
Receive the control signal of described second display unit.
The present invention also proposes a kind of digital television receiving method, comprising:
The digital television signal frequency division that receives is at least two the tunnel;
At least two way word television signal decoders behind the described frequency division are become audio-video signal, and be sent to first display unit and second display unit respectively;
Preferably, described digital television receiving method also comprises:
Receive the control signal of described second display unit.
The present invention also proposes a kind of digital television receiving apparatus, comprises decoder module, frequency division module and sending module, wherein:
Decoder module is used for the digital television signal decoding that will receive;
Frequency division module is used for described audio-video signal frequency division is at least two the tunnel, and is sent to first display unit and second display unit respectively by sending module.
Preferably, the described frequency division module digital television signal frequency division that also is used for receiving is at least two the tunnel; Described decoder module also is used at least two way word television signal decoders behind the described frequency division are become described audio-video signal, and is sent to first display unit and second display unit respectively by sending module.
Preferably, described sending module comprises:
Coding unit is used for the audio-video signal behind the frequency division is encoded;
Transmission unit is used for the audio-video signal behind the coding is transferred to second display unit.
Preferably, described transmission unit specifically is used for:
Audio-video signal behind the coding is broadcasted.
Preferably, described digital television receiving apparatus also comprises:
Control module is used to receive the control signal of described second display unit.
A kind of digital television receiving method and device that the present invention proposes, digital television receiving apparatus carries out frequency division to the digital television signal that receives, and is sent to the demonstration of second display unit, reaches the purpose of multihead display.Simultaneously, the operation on second display unit is sent to digital television receiving apparatus by the wireless data passage and handles, thereby realizes the control of second display unit to digital television receiving apparatus.
Description of drawings
Fig. 1 is the schematic flow sheet of digital television receiving method one embodiment of the present invention;
The schematic flow sheet of Fig. 2 for sending among digital television receiving method one embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the another embodiment of digital television receiving method of the present invention;
Fig. 4 is the schematic flow sheet of another embodiment of digital television receiving method of the present invention;
Fig. 5 is the digital television receiving method of the present invention schematic flow sheet of an embodiment again;
Fig. 6 is the structural representation of digital television receiving apparatus one embodiment of the present invention;
Fig. 7 is the structural representation of sending module among digital television receiving apparatus one embodiment of the present invention;
Fig. 8 is the structural representation of the another embodiment of digital television receiving apparatus of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, digital television receiving method one embodiment of the present invention is proposed, comprising:
Step S10, the digital television signal that receives is decoded as audio-video signal;
Digital television receiving apparatus receiving digital television signals such as set-top box are decoded as audio-video signal with digital television signal, and this audio-video signal can be HIMD signal, digital signal or analog signal.
Step S11, described audio-video signal frequency division is at least two the tunnel, and is sent to first display unit and second display unit respectively.
The audio-video signal frequency division is at least two the tunnel.Audio-video signal is carried out frequency division handle to be about to one road input signal and to become the output of at least two road signals.Frequency division is handled can be by power divider (a kind of device that one road input signal energy is divided into two-way or the equal or unequal energy output of multichannel, also can be with synthetic one tunnel output of multiple signals energy, should guarantee certain isolation between the output port of a power divider) or the master controller that has embedded the division function module carry out, present embodiment has preferably embedded the master controller of division function module, because therefore the existing master controller of digital television receiving apparatus can reach the purpose of saving cost by multiplexing this master controller.
Audio-video signal behind the frequency division, wherein one the tunnel import existing first display unit that is connected with digital television receiving apparatus (can be equipment such as television set, projecting apparatus), at least one in addition road is sent to second display unit demonstrations such as outer screen terminal, outer screen terminal is and external other display unit of digital television apparatus such as intelligent remote controller, mobile phone, PDA etc., can be one or more, specifically look the logarithmic output signal amount decision after frequency division is handled.
For second display unit that possesses with first display unit equal resolution such as television set, projecting apparatus, audio-video signal can directly be sent to second display unit by wired or wireless mode, and the display screen of common second display unit is less, resolution is low, do not possess the ability of play-overing decoded audio-video signal, therefore the audio-video signal behind the frequency division need make it be suitable for playing on second display unit through certain coding of handling as certain format.Processing to audio-video signal can be carried out by digital television receiving apparatus, also can be carried out after receiving the signal that digital television receiving apparatus sends by second display unit.
Present embodiment realizes that by increase division function in digital television receiving apparatus digital television receiving apparatus is expanded into possibility from Dan Ping to multi-screen, realizes the display synchronization of multi-screen.
With reference to Fig. 2, in one embodiment, step S11 can comprise:
Step S111, the audio-video signal behind the frequency division is encoded;
Step S112, the audio-video signal after will encoding transfer to second display unit.
Audio-video signal behind the frequency division is encoded, play to be suitable for second display unit, coded format can be H.264/3GP to wait, and the audio-video signal behind the coding transfers to second display unit in wired or wireless (WIFI, bluetooth etc.) mode.
In the above-described embodiments, step S111 comprises:
Mode by hardware encoding or software coding is encoded into H.264/3GP form with audio-video signal.
Can use hardware or software mode to realize according to actual conditions.The mode that hardware encoding is realized is to increase an audio/video coding chip (as: the Hi3510 chip is thought in the sea), and the mode of software coding is to increase to be used for processing module that audio frequency and video are encoded in application system.
In the above-described embodiments, step S112 comprises:
Audio-video signal behind the coding is broadcasted.
When having a plurality of second display unit, preferable mode is the audio-video signal that adopts behind the broadcast transmitted coding, and broadcasting being meant
The IP subnetInterior broadcasting
Packet, all will receive these packets at the main frame of subnet inside. and broadcasting means that network to subnet All hosts delivery data bag all, can improve the efficient of transmission.
With reference to Fig. 3, the another embodiment of proposition digital television receiving method of the present invention, in the above-described embodiments, also comprise:
The control signal of step S12, described second display unit of reception.
Step S12 can be in step S10, S11, afterwards or before, second display unit is to the digital television receiving apparatus sending controling instruction, control figure radiovisor, the function that this moment, second display unit was served as remote controller.The user is by the button or the touch-screen input control order of second display unit, second display unit is sent to the master controller of digital television receiving apparatus with user's control command with the form of binary coded signal, is operated accordingly according to the control command of second display unit by master controller.Further, second display unit can also be controlled audio-video signal that exports display to and the audio-video signal that exports second display unit to respectively by two or more different frequency ranges, as arrange the X-Y frequency range corresponding to existing display, the M-N frequency range is corresponding to one second display unit, in the switching that is provided with on second display unit between two frequency ranges of button realization.And digital television receiving apparatus is behind the binary coded signal that receives the transmission of second display unit, amplify, decode operation, make binary coding become the pulse signal that circuit can be recognized, when picking out this pulse signal and belong to the pulse signal of X-Y or M-N, trigger the control corresponding flow process as making display playback program before, this moment, the user can watch the program of the playback on the display on one side, can on second display unit watch current program on one side.
With reference to Fig. 4, another embodiment of digital television receiving method of the present invention is proposed, comprising:
Step S20, the digital television signal frequency division that receives is at least two the tunnel;
Digital television receiving apparatus receiving digital television signals such as set-top box are at least two the tunnel with the digital television signal frequency division.Digital television signal is carried out frequency division handle to be about to one road input signal and to become the output of at least two road signals.Frequency division is handled can be by power divider (a kind of device that one road input signal energy is divided into two-way or the equal or unequal energy output of multichannel, also can be with synthetic one tunnel output of multiple signals energy, should guarantee certain isolation between the output port of a power divider) or the master controller that has embedded the division function module carry out, present embodiment has preferably embedded the master controller of division function module, because therefore the existing master controller of digital television receiving apparatus can reach the purpose of saving cost by multiplexing this master controller.
Step S21, at least two way word television signal decoders behind the described frequency division are become audio-video signal, and be sent to first display unit and second display unit respectively.
With at least two way word television signal decoders behind the frequency division is audio-video signal, and this audio-video signal can be HIMD signal, digital signal or analog signal.Decoded at least two road audio-video signals, wherein one the tunnel import existing first display unit that is connected with digital television receiving apparatus (can be equipment such as television set, projecting apparatus), at least one in addition road is sent to second display unit demonstrations such as outer screen terminal, outer screen terminal is and external other display unit of digital television apparatus such as intelligent remote controller, mobile phone, PDA etc., can be one or more, specifically look the logarithmic output signal amount decision after frequency division is handled.
For second display unit that possesses with first display unit equal resolution such as television set, projecting apparatus, audio-video signal can directly be sent to second display unit by wired or wireless mode, and the display screen of common second display unit is less, resolution is low, do not possess the ability of play-overing decoded audio-video signal, therefore the audio-video signal behind the frequency division need make it be suitable for playing on second display unit through certain coding of handling as certain format.Coded format can be H.264/3GP to wait, and can be carried out by digital television receiving apparatus, also can be carried out after receiving the signal that digital television receiving apparatus sends by second display unit.
Present embodiment proposes the multi-display method that first frequency division is decoded again, by increase division function in digital television receiving apparatus, realizes that digital television receiving apparatus is expanded into possibility from Dan Ping to multi-screen, realizes the display synchronization of multi-screen.
With reference to Fig. 5, in a last embodiment, also comprise:
The control signal of step S22, described second display unit of reception.
Step S22 can be before step S20,21, afterwards or simultaneously.Second display unit is to the digital television receiving apparatus sending controling instruction, control figure radiovisor, the function that this moment, second display unit was served as remote controller.The user is by the button or the touch-screen input control order of second display unit, second display unit is sent to the master controller of digital television receiving apparatus with user's control command with the form of binary coded signal, is operated accordingly according to the control command of second display unit by master controller.Further, second display unit can also be controlled audio-video signal that exports display to and the audio-video signal that exports second display unit to respectively by two or more different frequency ranges, as arrange the X-Y frequency range corresponding to existing display, the M-N frequency range is corresponding to one second display unit, in the switching that is provided with on second display unit between two frequency ranges of button realization.And digital television receiving apparatus is behind the binary coded signal that receives the transmission of second display unit, amplify, decode operation, make binary coding become the pulse signal that circuit can be recognized, when picking out this pulse signal and belong to the pulse signal of X-Y or M-N, trigger the control corresponding flow process as making display playback program before, this moment, the user can watch the program of the playback on the display on one side, can on second display unit watch current program on one side.
With reference to Fig. 6, digital television receiving apparatus one embodiment of the present invention is proposed, comprise decoder module 10, frequency division module 20 and sending module 30, wherein:
Through the multiple signals after the frequency division processing, wherein a route sending module 30 is imported existing first display unit that are connected with digital television receiving apparatus (can be equipment such as television set, projecting apparatus), at least one in addition road is sent to second display unit demonstrations such as outer screen terminal, outer screen terminal is except that display, with external other display unit of digital television apparatus such as intelligent remote controller, mobile phone, PDA etc., can be one or more, specifically look the logarithmic output signal amount decision after frequency division is handled.
For second display unit that possesses with first display unit equal resolution such as television set, projecting apparatus, audio-video signal can directly be sent to second display unit by wired or wireless mode, and the display screen of common second display unit is less, resolution is low, do not possess the ability of play-overing decoded audio-video signal, therefore the audio-video signal behind the frequency division need make it be suitable for playing on second display unit through certain coding of handling as certain format.Coding can be carried out by digital television receiving apparatus, also can be carried out after receiving the signal that digital television receiving apparatus sends by second display unit.
Present embodiment realizes that by increase division function in digital television receiving apparatus digital television receiving apparatus is expanded into possibility from Dan Ping to multi-screen; Second display unit realizes the display synchronization of multi-screen by receiving the audio-video signal of being handled by digital television receiving apparatus.
In one embodiment, the frequency division module 20 digital television signal frequency division that also is used for receiving is at least two the tunnel; Described decoder module 10 also is used at least two way word television signal decoders behind the described frequency division are become described audio-video signal, and is sent to first display unit and second display unit respectively by sending module 30.This shows, the order of frequency division and decoding can be provided with flexibly, the user can be set to frequency division module 20 and earlier the digital television signal that enters digital television receiving apparatus such as set-top box be carried out frequency division again by decoder module 10 decodings, after also can decoding by decoder module 10 earlier again by frequency division module 20 frequency divisions.
With reference to Fig. 7, sending module 30 comprises:
In the above-described embodiments, coding unit 31 specifically is used for:
Mode by hardware encoding or software coding is encoded into H.264/3GP form with audio-video signal.
In the above-described embodiments, transmission unit 32 specifically is used for:
Audio-video signal behind the coding is broadcasted.
When having a plurality of second display unit, preferable mode is the audio-video signal that adopts behind the broadcast transmitted coding, and broadcasting being meant
The IP subnetInterior broadcasting
Packet, all will receive these packets at the main frame of subnet inside. and broadcasting means that network to subnet All hosts delivery data bag all, can improve the efficient of transmission.
With reference to Fig. 8, the another embodiment of digital television receiving apparatus of the present invention is proposed, in the above-described embodiments, also comprise:
Second display unit can also be to the digital television receiving apparatus sending controling instruction, control figure radiovisor, the function that this moment, second display unit was served as remote controller.The user is by the button or the touch-screen input control order of second display unit, second display unit is sent to the master controller of digital television receiving apparatus with user's control command with binary-coded form, is operated accordingly according to the control command of second display unit by master controller.Further, second display unit can also be controlled audio-video signal that exports display to and the audio-video signal that exports second display unit to respectively by two or more different frequency ranges, as arrange the X-Y frequency range corresponding to existing display, the M-N frequency range is corresponding to one second display unit, in the switching that is provided with on second display unit between two frequency ranges of button realization.And digital television receiving apparatus is behind the binary coded signal that receives the transmission of second display unit, amplify, decode operation, make binary coding become the pulse signal that circuit can be recognized, when picking out this pulse signal and belong to the pulse signal of X-Y or M-N, trigger the control corresponding flow process as making display playback program before, this moment, the user can watch the program of the playback on the display on one side, can on second display unit watch current program on one side.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (11)
1. a digital television receiving method is characterized in that, comprising:
The digital television signal that receives is decoded as audio-video signal;
Described audio-video signal frequency division is at least two the tunnel, and is sent to first display unit and second display unit respectively.
2. digital television receiving method as claimed in claim 1 is characterized in that, described the audio-video signal frequency division is at least two the tunnel, and is sent to respectively and also comprises step after the step of first display unit and second display unit:
Audio-video signal behind the frequency division is encoded;
Audio-video signal behind the coding is transferred to second display unit.
3. digital television receiving method as claimed in claim 2 is characterized in that, the audio-video signal after described will the coding transfers to second display unit and is specially:
Audio-video signal behind the coding is broadcasted.
4. as each described digital television receiving method in the claim 1 to 3, it is characterized in that, also comprise:
Receive the control signal of described second display unit.
5. a digital television receiving method is characterized in that, comprising:
The digital television signal frequency division that receives is at least two the tunnel;
At least two way word television signal decoders behind the described frequency division are become audio-video signal, and be sent to first display unit and second display unit respectively.
6. digital television receiving method as claimed in claim 5 is characterized in that, also comprises:
Receive the control signal of described second display unit.
7. a digital television receiving apparatus is characterized in that, comprises decoder module, frequency division module and sending module, wherein:
Decoder module is used for the digital television signal decoding that will receive;
Frequency division module is used for described audio-video signal frequency division is at least two the tunnel, and is sent to first display unit and second display unit respectively by sending module.
8. digital television receiving apparatus as claimed in claim 7 is characterized in that, the digital television signal frequency division that described frequency division module also is used for receiving is at least two the tunnel; Described decoder module also is used at least two way word television signal decoders behind the described frequency division are become described audio-video signal, and is sent to first display unit and second display unit respectively by sending module.
9. as claim 7 or 8 described digital television receiving apparatus, it is characterized in that described sending module comprises:
Coding unit is used for the audio-video signal behind the frequency division is encoded;
Transmission unit is used for the audio-video signal behind the coding is transferred to second display unit.
10. digital television receiving apparatus as claimed in claim 9 is characterized in that, described transmission unit specifically is used for:
Audio-video signal behind the coding is broadcasted.
11. as claim 7 or 8 described digital television receiving apparatus, it is characterized in that, also comprise:
Control module is used to receive the control signal of described second display unit.
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| CN2011101925129A CN102263998A (en) | 2011-07-11 | 2011-07-11 | Receiving method and device for digital television |
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| CN2011101925129A CN102263998A (en) | 2011-07-11 | 2011-07-11 | Receiving method and device for digital television |
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| CN104618792A (en) * | 2013-11-04 | 2015-05-13 | 珠海扬智电子科技有限公司 | Streaming method and streaming system thereof |
| CN109089155A (en) * | 2018-10-30 | 2018-12-25 | 深圳市中京电子有限公司 | A kind of audio and video resources sharing means and its sharing method |
| 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 |
| CN110830760A (en) * | 2018-08-10 | 2020-02-21 | 北京仁光科技有限公司 | Secure network data interaction system and method |
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| CN110933291A (en) * | 2019-06-06 | 2020-03-27 | 北京仁光科技有限公司 | Cross-network interaction system and cross-network interaction method |
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Application publication date: 20111130 |