CN103200436A - Device and method of remote control signal processing, set top box (STB) and television signal transmission system - Google Patents
Device and method of remote control signal processing, set top box (STB) and television signal transmission system Download PDFInfo
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- CN103200436A CN103200436A CN2012100036771A CN201210003677A CN103200436A CN 103200436 A CN103200436 A CN 103200436A CN 2012100036771 A CN2012100036771 A CN 2012100036771A CN 201210003677 A CN201210003677 A CN 201210003677A CN 103200436 A CN103200436 A CN 103200436A
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Abstract
The invention discloses a device and a method of remote control signal processing, a set top box (STB) and a television signal transmission system. The device of the remote control signal processing comprises a first remote control signal receiving device and a signal processing device, the first remote control signal receiving device is used for receiving and demodulating first remote control signals from a first remote controller, and the signal processing device is used for receiving the demodulated first remote control signals through a first interface, coding the demodulated first remote control signals, generating first control signals, and sending the first control signals to a STB controller. The device of the remote control signal processing further receives demodulated second remote control signals from a second remote control signal receiving device through a second interface, codes the demodulated second remote control signals, generates second control signals, and sends the second control signals to the STB controller. The device and the method of the remote control signal processing, the STB and the television signal transmission system can achieve that television programs can be watched at the same time with two television sets using one STB.
Description
Technical field
The present invention relates to the digital cable TV field, particularly, relate to a kind of remote signal processing unit, method, set-top box and television signal transmission system.
Background technology
A set-top box can only receive the remote signal of one tunnel TV remote controller in the prior art field, if there are two television sets to need TV reception simultaneously in the user family, then need two set-top box or uses the Digital Television shared device to realize.
For the situation of using two set-top box, though can solve the problem that two television sets are watched different TV programme, owing to need the set-top box of buying, use cost is higher more; For the situation of using the Digital Television shared device, though be that two television sets use a set-top box to come TV reception, two television sets can only be watched identical TV programme.There are the problems referred to above, mainly are because existing set-top box can only receive and handle one tunnel remote signal, thereby can not support two television sets only to use a set-top box to watch different TV programme.
Summary of the invention
Receive cable TV signal when realizing two television identical, namely set-top box of two television set uses can be watched different TV programme and is independent of each other, and the invention provides a kind of remote signal processing unit, method, set-top box and television signal transmission system.
To achieve these goals, the invention provides a kind of remote signal processing unit, this remote signal processing unit comprises: first remote control signal receiver is used for receiving also demodulation from first remote signal of first remote controller; And signal processing apparatus, be used for receiving first remote signal after the described demodulation via first interface, first remote signal after this demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller, described signal processing apparatus also receives from second remote signal after the demodulation of second remote control signal receiver via second interface, second remote signal after this demodulation is encoded, generate second control signal, and this second control signal is sent to described stb controller.
In addition, the present invention also provides a kind of remote signal processing method, and this method comprises: receive also demodulation from first remote signal of first remote controller; And receive first remote signal after this demodulation via first interface, first remote signal after this demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller, this method also comprises: receive from second remote signal after the demodulation of second remote control signal receiver via second interface, second remote signal after this demodulation is encoded, generate second control signal, and this second control signal is sent to described stb controller.
In addition, the present invention also provides a kind of set-top box, and this set-top box comprises: tuner is used for receiving the two-way cable TV signal, and converts described two-way cable TV signal to first transport stream and second transport stream respectively; Described remote signal processing unit; And stb controller, be used for described first transport stream and second transport stream are carried out descrambling, afterwards according to described first control signal, first transmission stream decoding behind the described descrambling is become video/audio signal, and export this video/audio signal; According to described second control signal, second transmission stream decoding behind the described descrambling is become video/audio signal, and export this video/audio signal.
And the present invention also provides a kind of television signal transmission system, and this system comprises: described set-top box; First and second remote controller is respectively applied to import described first remote controller signal and second remote controller signal; Second remote control signal receiver is used for receiving and demodulation is sent to described remote signal processing unit from second remote signal of second remote controller and with second remote signal after the described demodulation; And first and second television set, be respectively applied to receive described first and second video/audio signal.
A kind of remote signal processing unit provided by the present invention, method, set-top box and television signal transmission system, can solve two television sets uses a set-top box to watch the problem of different TV programme, namely a set-top box can receive the two-way remote signal and handle the two-way remote signal, afterwards according to this two-way remote signal respectively the controller top box be sent to the program of two television sets, thereby under the situation that does not increase set-top box, realize the independent control of the program of two television sets.In addition, the remote signal processing unit after the improvement is with respect to increasing a set-top box, and cost is lower.
Other features and advantages of the present invention will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with following embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structure chart according to the remote signal processing unit of embodiment of the present invention;
Fig. 2 a and Fig. 2 b are the structure charts according to the set-top box of embodiment of the present invention; And
Fig. 3 is the structure chart according to the television signal transmission system of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
As shown in Figure 1, a kind of remote signal processing unit provided by the invention, this device comprises: first remote control signal receiver 111 is used for receiving also demodulation from first remote signal of first remote controller; And signal processing apparatus 104, be used for receiving first remote signal after the described demodulation via first interface, first remote signal after this demodulation is encoded, generate first control signal, and this first control signal 113a is sent to stb controller 105, described signal processing apparatus 104 also receives from second remote signal after the demodulation of second remote control signal receiver 112 via second interface, second remote signal after this demodulation is encoded, generate second control signal, and this second control signal is sent to described stb controller 105.
Wherein, described signal processing apparatus 104 can according to arrive first earlier, after to after the principle that goes out handle first remote signal and second remote signal after the described demodulation, particularly, when second remote signal of first remote signal of described signal processing apparatus 104 after described demodulation after prior to described demodulation arrives this signal processing apparatus 104, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller 105.When first remote signal after described demodulation and second remote signal after the described demodulation arrive this signal processing apparatus 104 simultaneously, described signal processing apparatus 104 is preferentially encoded to first remote signal after the described demodulation, generate first control signal, and this first control signal is sent to stb controller 105.
As shown in Figure 1, first remote control signal receiver 111 is used for receiving also demodulation from first remote signal of first remote controller, and this device converts first remote signal photosignal to and through after amplification, the demodulation, it is transferred to signal processing apparatus 104.Second remote control signal receiver 112 be used for receiving and demodulation from second remote signal of second remote controller, this device converts second remote signal to photosignal and through after amplification, the demodulation, and also it is transferred to signal processing apparatus 104.
Wherein, the different interface of definable receives the signal from first remote control signal receiver 111 and second remote control signal receiver 112 respectively in the described signal processing apparatus 104, for example definable interface 1 is for first remote signal behind the receiving demodulation, interface 2 is used for the second remote signal signal processing apparatus 104 behind the receiving demodulation, afterwards can according to above-mentioned treatment principle after to described demodulation first remote signal or second remote signal encode that (this coding can be distinguished the remote signal from distinct interface, for example, for first remote signal from interface 1, in first control signal that generates, add flag bit 1, for second remote signal from interface 2, in second control signal that generates, add flag bit 2, by this, can make stb controller to distinguish first control signal and second control signal, realize utilizing this first control signal and second control signal to control the purpose of different television sets respectively), generate first control signal or second control signal, and this first control signal or second control signal are sent to stb controller 105.105 pairs of these first control signals of this stb controller or second control signal are decoded, and to respond the straighforward operation of first and second remote controllers, namely a set-top box can be handled the remote signal that two TV remote controller are sent simultaneously.
Certainly, described first control signal and second control signal also can by described signal processing apparatus 104 be integrated into a packet (first control signal and the ordering of second control signal in this packet reflect and above-mentionedly arrive first earlier, after to after go out, the first control signal principle of priority when arriving simultaneously) in, afterwards this packet is sent to stb controller.
In addition, the present invention also provides a kind of remote signal processing method for set-top box, and this method comprises: receive also demodulation from first remote signal of first remote controller; And receive first remote signal after this demodulation via first interface, first remote signal after this demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller 105, this method also comprises: receive from second remote signal after the demodulation of second remote control signal receiver via second interface, second remote signal after this demodulation is encoded, generate second control signal, and this second control signal is sent to described stb controller 105.
Wherein, when second remote signal of first remote signal after described demodulation after prior to described demodulation arrives this signal processing apparatus 104, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller 105.
Wherein, when first remote signal after described demodulation and second remote signal after the described demodulation arrive this signal processing apparatus 104 simultaneously, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller 105.
In addition, the present invention also provides a kind of set-top box 10, and shown in Fig. 2 a, this set-top box 10 can comprise: tuner 101 is used for receiving the two-way cable TV signal, and converts described two-way cable TV signal to first transport stream and second transport stream respectively; Above-mentioned remote signal processing unit; And stb controller 105, link to each other with described tuner 101 and described signal processing apparatus 104, being used for that described first transport stream and second transport stream are carried out descrambling (can use an IC-card scrambling item of two different transport stream to be carried out the descrambling of CA system at this, two transport stream behind the descrambling can be used for direct decoding), afterwards according to described first control signal, first transmission stream decoding behind the described descrambling is become video/audio signal, and export this video/audio signal; According to described second control signal, second transmission stream decoding behind the described descrambling is become video/audio signal, and export this video/audio signal.
Wherein, the control signal that first control signal and second control signal mainly refer to TV programme signal is operated (as, search frequency, change platform, regulate volume, menu operation etc.).Stb controller 105 is decoded to first transport stream and second transport stream according to this first control signal and second control signal respectively.
Particularly, tuner 101 can comprise the first tuner 101a and the second tuner 101b, and wherein, the first tuner 101a is used for receiving first via TV signal, and converts this first via TV signal to first transport stream; The second tuner 101b is used for receiving the second tunnel TV signal, and converts this second tunnel TV signal to second transport stream.
In addition, have two transport stream access ports according to the stb controller 105 in the set-top box 10 of embodiment of the present invention, namely can receive first transport stream and second transport stream, but the invention is not restricted to this.The situation of having only a transport stream access port at stb controller 105 (namely, can only receive one tunnel transport stream), set-top box 10 provided by the invention also can comprise multiplexer 107, shown in Fig. 2 b, this multiplexer 107 is connected between described tuner 101 and the described stb controller 105, be used for described first transport stream and second transport stream are carried out multiplexing, and the transport stream after multiplexing be sent to described stb controller 105; And the described transport stream after multiplexing of 105 pairs of this stb controllers is carried out demultiplexing.Wherein, multiplexer 107 can adopt CPLD (CPLD), field programmable gate array modes such as (FPGA) to realize, also can adopt special-purpose application-specific integrated circuit (ASIC) (ASIC) chip to realize, the OVT009 chip of extensively looking as east, but be not limited to this.After transport stream after multiplexing carried out demultiplexing, the scrambling item of two different transport stream after can using same IC-card to demultiplexing carried out the descrambling of CA system, and two transport stream behind the descrambling can be used for direct decoding.
In addition, for making set-top box of the present invention applicable to dissimilar television sets (being specially Digital Television and simulated television), preferably, described set-top box 10 also can comprise conversion equipment 109, shown in Fig. 2 b, this conversion equipment 109 links to each other with described stb controller 105, is used for described first video/audio signal and/or second video/audio signal be converted to meeting the various video/audio signals of set-top box exporting country target.By this, can be at simulated television, output simulation video/audio signal (for example, analog video signal can be CVBS, S terminal, forms such as YPbPr, VGA, but is not limited thereto), at Digital Television, output digital video-audio signal (for example, digital video signal can be forms such as HDMI, YCbCr, but is not limited thereto), to be applicable to dissimilar television sets.Wherein, conversion equipment 109 can be general coding chip, also can adopt special-purpose application-specific integrated circuit (ASIC) (ASIC) chip to realize, OVT009 chip for example, but be not limited to this.
Especially, if want first video/audio signal of stb controller 105 output and/or second video/audio signal stable more and have a more performance (as low noise etc.), set-top box 10 provided by the invention also can comprise looks audio drive unit 110, shown in Fig. 2 b, this is looked audio drive unit 110 and links to each other with described stb controller 105, is used for described first video/audio signal and/or second video/audio signal are carried out filtering and/or amplification.
The present invention also provides a kind of television signal transmission system, and as shown in Figure 3, this system can comprise: described set-top box 10; First remote controller 20 and second remote controller 30 are respectively applied to import described first remote signal and second remote signal; Second remote control signal receiver 112 is used for receiving also demodulation from second remote signal of second remote controller and sends it to described signal processing apparatus 104; And first television set 50 and second television set 60, be respectively applied to receive described first video/audio signal and second video/audio signal.
Second remote signal after second remote control signal receiver 112 can adopt ethernet line or wireless network with described demodulation is sent to signal processing apparatus 104.Wherein, if adopt ethernet line to send, then second remote signal after the described demodulation can be sent to signal processing apparatus 104 by ethernet line; If adopt wireless network to send, then second remote signal after the described demodulation can be passed to by the mode of wireless transmission in the air, adopts second remote signal of corresponding radio receiver after will this described demodulation to receive at signal processing apparatus 104 places.
In addition, television signal transmission system provided by the invention also can comprise video/audio signal retransmission unit 70, this video/audio signal retransmission unit 70 is used for receiving described second video/audio signal from described stb controller 105, and this second video/audio signal is forwarded to described second television set 60.
Wherein, described video/audio signal retransmission unit 70 can receive described second video/audio signal from described controller 105 via Ethernet or wireless network.Particularly, if employing ethernet line, then controller is directly coupled to the ethernet line the inside with second video/audio signal, video/audio signal retransmission unit 70 takes out this second video/audio signal and receives second television set 60 from ethernet line, thereby this second television set 60 can be play this second video/audio signal; At this moment, video/audio signal retransmission unit 70 can be terminal box.If employing wireless network, then controller is launched by antenna after second video/audio signal is modulated to a frequency, video/audio signal retransmission unit 70 is given second television set 60 after this second video/audio signal is received again, thereby this second television set 60 can be play this second video/audio signal; At this moment, video/audio signal retransmission unit 70 can be radio-frequency (RF) Receiving Device.
Especially, controller is sent to second television set 60 with second video/audio signal, except employing video/audio signal retransmission unit 70 is transmitted, also can adopt the family expenses cable TV network, stb controller 105 is modulated to second video/audio signal behind the frequency in the feed-in family expenses cable TV network, and second television set 60 is received in the cable TV network and set corresponding channel and just can watch second video/audio signal.
By such scheme, described set-top box and first television set can be positioned at a room, and set-top box can link to each other with the distributor at cable TV network place, to receive the two-way cable TV signal of telling through distributor.The user can handle first remote controller in this room, this first remote controller sends corresponding first remote signal to the remote signal processing unit, this remote signal processing unit generates first control signal, and this first control signal is sent to stb controller, stb controller can export first video/audio signal of first television set according to this first control signal control to afterwards, realizes controlling first television set by this; Second remote control signal receiver, video/audio signal retransmission unit and second television set can be positioned at another room, the user can handle second remote controller in this room, this second remote controller sends corresponding second remote signal to the second remote control signal receiver, this second remote control signal receiver can second remote signal after ethernet line or wireless network are with demodulation be forwarded to the remote signal processing unit in the set-top box, the remote signal processing unit generates second control signal, and this second control signal is sent to stb controller, stb controller can be according to the control of this second control signal via netting twine too, wireless network or family expenses cable TV network export second video/audio signal of second television set to, realize controlling second television set by this.Thus, the present invention can realize the function of two television set independence TV receptions by a set-top box.In addition, the remote signal processing unit after the improvement is with respect to increasing a set-top box, and cost is lower and simple and easy to use.
Below describe preferred implementation of the present invention by reference to the accompanying drawings in detail; but; the present invention is not limited to the detail in the above-mentioned execution mode; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove in addition, each concrete technical characterictic described in above-mentioned embodiment under reconcilable situation, can make up by any suitable manner, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various execution mode of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. remote signal processing unit that is used for set-top box, this device comprises:
First remote control signal receiver is used for receiving also demodulation from first remote signal of first remote controller; And
Signal processing apparatus is used for receiving first remote signal after the described demodulation via first interface, and first remote signal after this demodulation is encoded, and generate first control signal, and this first control signal is sent to stb controller,
It is characterized in that, described signal processing apparatus also is used for receiving from second remote signal after the demodulation of second remote control signal receiver via second interface, second remote signal after this demodulation is encoded, generate second control signal, and this second control signal is sent to described stb controller.
2. remote signal processing unit according to claim 1, when second remote signal of first remote signal of wherein said signal processing apparatus after described demodulation after prior to described demodulation arrives this signal processing apparatus, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller.
3. remote signal processing unit according to claim 1, first remote signal and second remote signal described demodulation after when simultaneously arriving this signal processing apparatus of wherein said signal processing apparatus after described demodulation, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller.
4. remote signal processing method that is used for set-top box, this method comprises:
Receive also demodulation from first remote signal of first remote controller; And
Receive first remote signal after this demodulation via first interface, first remote signal after this demodulation encoded, generate first control signal, and this first control signal is sent to stb controller,
It is characterized in that this method also comprises:
Receive from second remote signal after the demodulation of second remote control signal receiver via second interface, second remote signal after this demodulation is encoded, generate second control signal, and this second control signal is sent to described stb controller.
5. method according to claim 4, when wherein second remote signal of first remote signal after described demodulation after prior to described demodulation arrives this signal processing apparatus, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller.
6. method according to claim 4, when wherein first remote signal after described demodulation and second remote signal after the described demodulation arrive this signal processing apparatus simultaneously, preferentially first remote signal after the described demodulation is encoded, generate first control signal, and this first control signal is sent to stb controller.
7. set-top box, this set-top box comprises:
Tuner is used for receiving the two-way cable TV signal, and converts described two-way cable TV signal to first transport stream and second transport stream respectively;
According to the described remote signal processing unit of each claim among the claim 1-3; And
Stb controller is used for described first transport stream and second transport stream are carried out descrambling, afterwards according to described first control signal, first transmission stream decoding behind the described descrambling is become video/audio signal, and exports this video/audio signal; According to described second control signal, second transmission stream decoding behind the described descrambling is become video/audio signal, and export this video/audio signal.
8. television signal transmission system, this system comprises:
Set-top box according to claim 7;
First and second remote controller is respectively applied to import described first remote controller signal and second remote controller signal;
Second remote control signal receiver is used for receiving and demodulation is sent to described signal processing apparatus from second remote signal of second remote controller and with second remote signal after the described demodulation; And
First and second television set is respectively applied to receive described first and second video/audio signal.
9. system according to claim 8, wherein this system also comprises:
The video/audio signal retransmission unit is used for receiving described second video/audio signal via ethernet line or wireless network from described controller, and this second video/audio signal is forwarded to described second television set.
10. system according to claim 8, wherein said second television set receives described second video/audio signal via the family expenses cable TV network from described controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100036771A CN103200436A (en) | 2012-01-06 | 2012-01-06 | Device and method of remote control signal processing, set top box (STB) and television signal transmission system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100036771A CN103200436A (en) | 2012-01-06 | 2012-01-06 | Device and method of remote control signal processing, set top box (STB) and television signal transmission system |
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| CN103200436A true CN103200436A (en) | 2013-07-10 |
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| CN2012100036771A Pending CN103200436A (en) | 2012-01-06 | 2012-01-06 | Device and method of remote control signal processing, set top box (STB) and television signal transmission system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490703A (en) * | 2015-12-28 | 2016-04-13 | 生迪智慧科技有限公司 | Audio frequency reception device, method and wireless play system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2111567U (en) * | 1991-10-21 | 1992-07-29 | 余鹏 | Infrared remote control unit for antenna swaying |
| EP1420587A1 (en) * | 2002-11-12 | 2004-05-19 | Thomson Broadband UK Ltd | Circuit arrangement with two input sections for receiving television program content |
| CN101355640A (en) * | 2008-09-11 | 2009-01-28 | 敖发良 | Multi-display digital television set-top box |
-
2012
- 2012-01-06 CN CN2012100036771A patent/CN103200436A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2111567U (en) * | 1991-10-21 | 1992-07-29 | 余鹏 | Infrared remote control unit for antenna swaying |
| EP1420587A1 (en) * | 2002-11-12 | 2004-05-19 | Thomson Broadband UK Ltd | Circuit arrangement with two input sections for receiving television program content |
| CN101355640A (en) * | 2008-09-11 | 2009-01-28 | 敖发良 | Multi-display digital television set-top box |
Non-Patent Citations (1)
| Title |
|---|
| 王召福: "一种基于家庭网络的多电视解决方案", 《电视技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490703A (en) * | 2015-12-28 | 2016-04-13 | 生迪智慧科技有限公司 | Audio frequency reception device, method and wireless play system |
| CN105490703B (en) * | 2015-12-28 | 2018-03-16 | 生迪智慧科技有限公司 | Apparatus for receiving audio, method and radio play system |
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Application publication date: 20130710 |