CN200941651Y - Set top sharer of digital TV set - Google Patents
Set top sharer of digital TV set Download PDFInfo
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- CN200941651Y CN200941651Y CNU2006200635509U CN200620063550U CN200941651Y CN 200941651 Y CN200941651 Y CN 200941651Y CN U2006200635509 U CNU2006200635509 U CN U2006200635509U CN 200620063550 U CN200620063550 U CN 200620063550U CN 200941651 Y CN200941651 Y CN 200941651Y
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Abstract
The utility model provides a sharer matching with the digital TV top box which comprise a host and a handhold remote control box, wherein, the host comprises a host function conversion device and an image signal transmission device, the receiver on the input end of the host function conversion device is used to receive the control signals from the handhold remote control box, a LED infrared light on the output end is arranged in the scope that the infrared window of the top box can receive; the image signal transmission device comprises a distributor and an inverse transmitter, the input end of the distributor is connected with an output port of the digital TV signal distributor, one output port of the distributor is connected with the signal input end of the top box through a RF-IN port of the host,and the other output port is connected with the output end of one of video and audio signals of the top box. The utility model is a convenient, economic and practical, widely used digital TV top box sharer, can realize the effect of the ''one-unit multi-purpose'',and is also advantageous to the spread of the digital TV network.
Description
[technical field]
The utility model relates to a kind of shared device that can be connected with the set-top box of Digital Television.
[background technology]
Digital Television advantage such as Duos owing to have definition height, program than traditional simulated television, thereby is developed rapidly.The family-owned television set of China common people all is traditional simulated television, wants to utilize existing television set to watch digital television program, must change reception by " digital TV set-top box " (hereinafter to be referred as " set-top box ") but at present.The main circulation way of digital signal is to utilize original cable TV network to transform transmission at present, and transmits network through improved Digital Television, and original TV station stands and just do not transmitted analog television program in the past basically.
" set-top box " that on-site install must be bought by user charges, its unit price is about about 1000 yuan, and the shortcoming of a set-top box is exactly only to use for a television set, if there is multiple TV set in resident family, will purchase set-top box more, it is just higher to be added up by user's payment, the network operation expense of paying and other pay TV programs expense that by set-top box is unit calculating in that every month, and this is difficult to bear to most family, user, has also limited popularization, the application of Digital Television.How to solve the deficiency of a machine special use of set-top box, develop can with the set-top box sharing equipment, make the family of living or working in same unit, user also can carry out operations such as independent remote control channel selection, control volume, switch to set-top box in a plurality of intervals (or room) under only with the situation of a set-top box and also watch TV programme in the interval (or room) therein, this is the applicant's purpose just.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of sharing device of digital TV set-top box of easy to use, economical and practical, applied range is provided, it can realize the effect of one machine multiple purposes of set-top box, also helps applying of digital TV network.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:
A kind of sharing device of digital TV set-top box with the supporting use of set-top box, is characterized in that comprising main frame, hand-held remote control box, wherein:
Described main frame includes host function conversion equipment and image signal transmission device, the main effect of described host function conversion equipment is to receive the function control stream that the hand-held remote control box is sent, become corresponding with it control switch pulse, go the conversion of controller top box corresponding function by infrared light-emitting diode, thereby reach the purpose that each room can the remote control set-top box, the receiver of the input of this host function conversion equipment is used to receive the control signal from this hand-held remote control box emission, and the LED infrared lamp of output is arranged in the scope that the infrared window of set-top box can receive; The major function of described image signal transmission device is the sound of exporting after the set-top box demodulation, vision signal is modulated into the analog television channels radiofrequency signal, watch by the reverse television set that sends each room to of resident family's inner cable, this image signal transmission device includes distributor and reverse transmitter, the input of this distributor is connected with an output port of digital television signal distributor, one output port of this distributor is connected with the signal input port of set-top box through the RF-IN of main frame port, another output port by reverse transmitter and set-top box wherein one group look, audio signal output end connects;
The function of described hand-held remote control box mainly is during by different button, the function conversion that can remove the controller top box to the high-frequency signal that sends different code streams in the air after the host function conversion equipment conversion of main frame again.
Aforesaid sharing device of digital TV set-top box, it is characterized in that: described reverse transmitter includes filter and modulator, described filter two ends are connected with another output port of distributor and the analog signal output of modulator respectively, and the looking of modulator, audio input end is looked with another group of set-top box, Audio output port is connected.
Aforesaid sharing device of digital TV set-top box, it is characterized in that: described host function conversion equipment includes receiver, decoding IC, electronic switch IC, function control IC, amplifying triode Q and LED infrared lamp, the output of described receiver is connected with the input pin of decoding IC, the output pin of this decoding IC is connected with the input control pin of electronic switch IC accordingly, the switch pin of this electronic switch IC also is connected with the function pin of function control IC accordingly, and the output pin of function control IC is connected with this LED infrared lamp after triode Q amplifies.
Aforesaid sharing device of digital TV set-top box, it is characterized in that: described hand-held remote control box includes coding IC, radiating circuit and function button group, the output pin of described coding IC is connected with the input pin of radiating circuit, this radiating circuit transmits to the receiver reception of this main frame, and input pin of this coding IC is connected with the function button group accordingly.
Aforesaid sharing device of digital TV set-top box, it is characterized in that: the input port the place ahead at described digital television signal distributor is provided with trapper, the main effect of this trapper is to prevent the radiofrequency signal of main frame to the radiation of cable TV network main line, disturbs the normal signal transmission of cable TV network; This trapper includes the above LC shunt-resonant circuit of at least one joint, and each joint LC parallel connection is wiped the loop that shakes and is in series with another inductance L 2 after by inductance L 1 and capacitor C parallel connection again.
Aforesaid sharing device of digital TV set-top box is characterized in that: the input at described trapper is provided with amplifier.
Aforesaid sharing device of digital TV set-top box is characterized in that: the input port the place ahead at described digital television signal distributor is provided with amplifier.
Aforesaid sharing device of digital TV set-top box is characterized in that: be provided with the magnet that it can be pasted on the set-top box shell on described LED infrared lamp.
Compared with prior art, the utlity model has following advantage: 1), its solves the shortcoming of set-top box " a machine special use ", makes multiple TV set share a set-top box, all can independent remote control set-top box before every television set; Utilize reverse TV transmission high-frequency signal, must the user not add cable, utilizing the original cable system straight cutting of resident family to connect fully gets final product, transmit at the camera cable that does not change original house under the situation of network, can directly install and use, so it is of the present utility model easy for installation, quick, and compared with the height assembling of the set-top box of a machine special use take, maintenance expense, it is much cheap that its usage charges are wanted, this has brought material benefit to the user, also help applying of Digital Television, meet the development policies of our the universal Digital Television industry of country of 21 century fully; 2), the adaptable wide range of the utility model, everyly in a little cable system, can use this system to a plurality of television sets or other receiving equipment images, sound, data, control signal.
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
[description of drawings]
Fig. 1 is a circuit connection diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of main frame of the present utility model;
Fig. 3 is the circuit theory diagrams of hand-held remote control box of the present utility model;
Fig. 4 is the circuit theory diagrams (when adopting a joint LC shunt-resonant circuit) of the trapper of the utility model embodiment;
Fig. 5 is the LED infrared lamp of main frame and the encapsulation schematic diagram of magnet;
Fig. 6 is an entity connection layout of the present utility model.
[embodiment]
The present stage connection of Digital Television is such: the input port 21 that signal is input to digital television signal distributor 2 from the next digital television signal line 1 (as shown in Figure 6) of outdoor backguy, several output ports 22 by digital television signal distributor 2 are distributed to each interval TV socket 3 such as parlor, master room and guest room of same suite (is example with the household suite) with TV signal, and the television set for each in interval uses; In order to make simulated television receive digital television signal, each TV socket 3 is connected with the signal input part 41 of set-top box 4, after set-top box D/A conversion, the looking of set-top box 4, audio output port 42 are connected and can have watched Digital Television with the looking of television set 5, audio input port 51 accordingly.
In order to realize the purpose of set-top box " a tractor serves several purposes ", the applicant has designed a kind of sharing device of digital TV set-top box, and entity connection layout as shown in Figure 6 can find out that it is mainly by being made up of two parts: main frame 6 and hand-held remote control box 8.Their mentality of designing is such:
Main frame 6: it is arranged between the wherein output port (be equivalent to the TV socket, the TV socket in parlor normally is because it generally all is to be connected with set-top box) and set-top box of digital television signal distributor.Generally be with main frame 6 be placed on the parlor (because of set-top box in the parlor), the TV TV socket 3 that the input port RF-IN cable of main frame 6 is inserted on the wall of parlor gets final product.Its major function is that sound, the vision signal that will export after the set-top box demodulation are modulated into the analog television channels radiofrequency signal, watches by the reverse television set that sends each room to of resident family's inner cable.It two is to receive the function control stream that the hand-held remote control box is sent, and becomes corresponding with it control switch pulse, goes the conversion of controller top box corresponding function by infrared light-emitting diode, thereby reaches the purpose that each room can the remote control set-top box.
Hand-held remote control box 8: all can join a hand-held remote control box in each room that television set is arranged, its function is: by different buttons, and function conversion from the controller top box to the high-frequency signal that sends different code streams in the air that can remove.In order to prevent that neighbours from also using same system and the phase mutual interference, design has the address (the host address sign indicating number should be identical with remote-control box) of codified, disturbs thereby eliminate.
As shown in Figure 2, main frame 6 includes host function conversion equipment 61 and image signal transmission device 62, the receiver 611 of the input of described host function conversion equipment 61 is used to receive the control signal from 8 emissions of this hand-held remote control box, and the LED infrared lamp 615 of output is arranged in the scope that the infrared window 43 of set-top box 4 can receive; Described image signal transmission device 62 includes distributor 621 and reverse transmitter 622, the input RF-IN of this distributor 621 and an output of digital television signal distributor 2 are (in this embodiment, be meant the TV socket in parlor) connect, one output port of this distributor 621 is connected with the signal input part 41 of set-top box 4 through the RF-OUT of main frame 6 port, another output port by reverse transmitter 622 and set-top box 4 wherein one group look, Audio output port 42 is connected.
As shown in Figure 2, host function conversion equipment 61 includes receiver 611, decoding IC612, electronic switch IC613, function control IC 614, triode Q and LED infrared lamp 615, the output of described receiver 611 is connected with the input pin of decoding IC612, the output pin of decoding IC612 is connected with the input control pin of electronic switch IC613 accordingly, the switch pin of electronic switch IC613 also is connected with the function pin of function control IC 614 accordingly, and the output pin of function control IC 614 is connected with this LED infrared lamp 615 after triode Q amplifies.The conversion and control principle of host function conversion equipment 61 is: main frame 6 is from capturing the high-frequency signal of hand-held remote control box 8 emissions in the air, detect its code stream string and output to decoding IC612 through receiver 611, after its identification decoding from its corresponding output pin position output control pulse, this pulse goes to open the corresponding pin position of electronic switch IC613, electronic switch IC613 is with regard to the corresponding pin position of turn-on power loss control IC 614, this IC just exports one group of function code stream, remove to promote LED infrared lamp 615 outside infrared radiations through triode Q amplification, thereby controller top box 4 carries out the function conversion.
The image signal transmission path of main frame 6 image signal transmission devices 62 includes forward path and reverse transmission path.
Forward path: from the input port that the wired TV station digital television program of resident family's digital television signal distributor 2 outputs is received this main frame 6 by one of them OUT delivery outlet (as the TV socket on the wall of parlor), the i.e. RF-IN input port of a distributor 621, an OUT output port of distributor 621 is connected with the signal input part 41 of set-top box 4 through the RF-OUT of main frame 6 port, thereby cable TV signal is transferred to set-top box 4, set-top box 4 decoding back outputs are looked, audio signal is used for a television set, as long as with set-top box 4 wherein one group look, Audio output port 42 is looked with television set 5, Audio output port 51 gets final product, and this connection using method with the set-top box of present stage is the same.
Reverse transmission path: for realizing the reverse transmission of picture signal, reverse transmitter 622 includes filter 6221 and modulator 6222, described filter 6221 two ends are connected with another output port of distributor 621 and the analog signal output of modulator 6222 respectively, looking of modulator 6222, another group of audio input end and set-top box 4 is looked, Audio output port 42 connects, like this, can looking with set-top box 4, audio signal is input to 6222 li of the radio-frequency modulators of main frame 6, handle the high-frequency TV channel signals of the VHF of a simulation of back output with modulator 6222, its output is through its Harmonic Interference of low pass filter 6221 filterings, enter another OUT delivery outlet of distributor 621 again, reverse input port RF-IN output from distributor 621, termination (in this that termination that promptly is connected) through the same OUT of the reverse digital television signal distributor 2 that is sent to resident family of same cable with the TV socket in parlor, this termination is to IN termination and other reverse transportation simulator TV signal in a plurality of OUT termination of digital television signal distributor 2, because a plurality of OUT ends of digital television signal distributor 2 are connected with every television set respectively, and the reverse signal that is transferred in the digital television signal distributor 2 is the VHF TV channel signal of simulation, but the equal rating of general television set is watched like this.
Main components and parts in the main frame:
Decoding IC612 can be HT6337, MC145027, MC9482, YN5023,2272 etc., and that present embodiment adopts is PT2272.
Electronic switch IC613 can be 4066, and that present embodiment adopts is HEF4066.
The selection of function control IC 614 should be the same with the IC that set-top box remote controller is used or be adapted, and can be BL50462, HD430196, SC6122, M50110P, SAA3027 etc., and that present embodiment adopts is SC6122.
Figure 3 shows that the circuit theory diagrams of hand-held remote control box 8, it includes coding IC81, radiating circuit 82 and function button group 83, the output pin of described coding IC81 is connected with the input pin of radiating circuit 82, the input pin of coding IC81 is connected with function button group 83 accordingly, in the present embodiment, native system is designed to six function remote controls, be that function button group 83 has 6 button K1-K6, it is respectively the Push And Release of set-top box power supply, making progress of program channel, channel selection downwards, give great volume and 6 of little adjusting and acknowledgement keys etc., its acknowledgement key can switch accessing between TV programme Lay list and the normal play.The selection of function can be arbitrarily.
The operation principle of hand-held remote control box 8 is such: as the button K1 that presses function button group 83 (during or K2～K6), the VDD positive voltage just is added on the input pin of coding IC81 correspondence, at this moment on its output pin OUT, just export a pulse train, pulse train includes address code and function code stream, this pulse train is input to modulated high frequency signal in the radiating circuit 82, launch and received from antenna then by the receiver 611 of main frame 6, after host function conversion equipment 61 conversion process in main frame, after LED infrared lamp 615 goes the infrared window of controller top box 4 to receive, carry out the conversion of corresponding function, thereby reach the purpose that each room can the remote control set-top box.In the critical piece of hand-held remote control box 8, wherein
Coding IC81 can be HT12C, MC145026, MC9481, PT2262, YN5103 etc., and that present embodiment adopts is PT2262.
Do not opening, do not destroying under the situation of ready-made set-top box 4, for ease of LED infrared lamp 615 being placed near the infrared window 43 of set-top box 4, be provided with the magnet 10 that it can be pasted on set-top box 4 shells on the LED infrared lamp 615, as shown in Figure 5, after 10 encapsulation of LED infrared lamp 615 and magnet are got up, just can utilize magnet 10 that LED infrared lamp 615 is bonded on the drain pan of infrared window 43 belows.
As preferred embodiment of the present utility model, disturb main frame radiofrequency signal (co-channel interference) for stoping the main frame radiofrequency signal to the television channel of Main Line of Cable TV Network transmission and prevention cable television network, then need to add trapper 7.Trapper 7 is arranged on input port 21 the place aheads of digital television signal distributor 2.The main effect of trapper 7 is to prevent the radiofrequency signal of main frame to the radiation of cable TV network main line, disturbs the normal signal transmission of cable TV network.Trapper 7 is connected between the digital television signal distributor 2 of the input port of resident family's cable TV signal and resident family, one end of trapper 7 is connected with digital television signal line 1, the other end is connected with the input of digital television signal distributor 2, it includes the above LC shunt-resonant circuit of at least one joint, each joint LC parallel connection is wiped the loop that shakes and is in series with another inductance L 2 after by inductance L 1 and capacitor C parallel connection again, as shown in Figure 4.Be connected in series between the adjacent LC shunt-resonant circuit.Like this, can stop the VHF high-frequency signal of modulator 6222 output to transmit to cable television network more effectively, requiring the LC shunt-resonant circuit according to difference can be a joint, two joints, and three joints or above or the like normally adopt four joints.
For receiving digital television signal better, also on digital television signal line 1 input of trapper 7, be provided with amplifier 9 usually.With the decay of compensating digits TV signal in the cable transmission process, make image more clear, more stable.
Certainly, if the main frame radio frequency uses is that empty channel (no program channel) in the cable television network also can save trapper 7, only the front end at digital television signal distributor 2 only adds amplifier 9, because amplifier 9 is own except that having enlarging function, also can play the effect of main frame radiofrequency signal that stop to the Main Line of Cable TV Network transmission.
Claims (10)
1, a kind of sharing device of digital TV set-top box with the supporting use of set-top box (4), is characterized in that comprising main frame (6), hand-held remote control box (8), wherein:
Described main frame (6) includes host function conversion equipment (61) and image signal transmission device (62), the main effect of described host function conversion equipment (61) is to receive the function control stream that hand-held remote control box (8) is sent, become corresponding with it control switch pulse, go the conversion of controller top box corresponding function by infrared light-emitting diode, thereby reach the purpose that each room can the remote control set-top box, the receiver (611) of the input of this host function conversion equipment (61) is used for receiving the control signal from this hand-held remote control box (8) emission, and the LED infrared lamp (615) of output is arranged in the scope that the infrared window (43) of set-top box (4) can receive; The major function of described image signal transmission device (62) is the sound of exporting after the set-top box demodulation, vision signal is modulated into the analog television channels radiofrequency signal, watch by the reverse television set that sends each room to of resident family's inner cable, this image signal transmission device (62) includes distributor (621) and reverse transmitter (622), the input of this distributor (621) is connected with an output port (22) of digital television signal distributor (2), one output port of this distributor (621) is connected with the signal input port (41) of set-top box (4) through the RF-IN port of main frame (6), another output port by reverse transmitter (622) and set-top box (4) wherein one group look, audio signal output end connects;
The function of described hand-held remote control box (8) mainly is during by different button, the function conversion that can remove the controller top box to the high-frequency signal that sends different code streams in the air after host function conversion equipment (61) conversion of main frame (6) again.
2, sharing device of digital TV set-top box according to claim 1, it is characterized in that: described reverse transmitter (622) includes filter (6221) and modulation (6222), described filter (6221) two ends are connected with another output port of distributor (621) and the analog signal output of modulator (6222) respectively, and the looking of modulator (6222), audio input end is looked with another group of set-top box (4), Audio output port (42) is connected.
3, sharing device of digital TV set-top box according to claim 1 and 2, it is characterized in that: described host function conversion equipment (61) includes receiver (611), decoding IC (612), electronic switch IC (613), function control IC (614), the outer lamp (615) of amplifying triode Q and LED, the output of described receiver (611) is connected with the input pin of decoding IC (612), the output pin of this decoding IC (612) is connected with the input control pin of electronic switch IC (613) accordingly, the switch pin of this electronic switch IC (613) also is connected with the function pin of function control IC (614) accordingly, and the output pin of function control IC (614) is connected with this LED infrared lamp (615) after triode Q amplifies.
4, sharing device of digital TV set-top box according to claim 1 and 2, it is characterized in that: described hand-held remote control box (8) includes coding IC (81), radiating circuit (82) and function button group (83), the output pin of described coding IC (81) is connected with the input pin of radiating circuit (82), this radiating circuit (82) transmits to receiver (611) reception of this main frame (6), and input pin of this coding IC (81) is connected with function button group (83) accordingly.
5, sharing device of digital TV set-top box according to claim 3, it is characterized in that: described hand-held remote control box (8) includes coding IC (81), radiating circuit (82) and function button group (83), the output pin of described coding IC (81) is connected with the input pin of radiating circuit (82), and the input pin of this coding IC (81) is connected with function button group (83) accordingly.
6, sharing device of digital TV set-top box according to claim 1 and 2, it is characterized in that: input port (21) the place ahead at described digital television signal distributor (2) is provided with trapper (7), the main effect of this trapper (7) is to prevent the radiofrequency signal of main frame to the radiation of cable TV network main line, disturbs the normal signal transmission of cable TV network; This trapper (7) includes the above LC shunt-resonant circuit of at least one joint, and each joint LC parallel connection is wiped the loop that shakes and is in series with another inductance L 2 after by inductance L 1 and capacitor C parallel connection again.
7, sharing device of digital TV set-top box according to claim 3, it is characterized in that: input port (21) the place ahead at described digital television signal distributor (2) is provided with trapper (7), the main effect of this trapper (7) is to prevent the radiofrequency signal of main frame to the radiation of cable TV network main line, disturbs the normal signal transmission of cable TV network; This trapper (7) includes the above LC shunt-resonant circuit of at least one joint, and each joint LC parallel connection is wiped the loop that shakes and is in series with another inductance L 2 after by inductance L 1 and capacitor C parallel connection again.
8, sharing device of digital TV set-top box according to claim 7 is characterized in that: the input at described trapper (7) is provided with amplifier (9).
9, sharing device of digital TV set-top box according to claim 3 is characterized in that: input port (21) the place ahead at described digital television signal distributor (2) is provided with amplifier (9).
10, sharing device of digital TV set-top box according to claim 3 is characterized in that: be provided with the magnet (10) that it can be pasted on set-top box (4) shell on the described LED infrared lamp (615).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200635509U CN200941651Y (en) | 2006-08-23 | 2006-08-23 | Set top sharer of digital TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200635509U CN200941651Y (en) | 2006-08-23 | 2006-08-23 | Set top sharer of digital TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941651Y true CN200941651Y (en) | 2007-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200635509U Expired - Fee Related CN200941651Y (en) | 2006-08-23 | 2006-08-23 | Set top sharer of digital TV set |
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| Country | Link |
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| CN (1) | CN200941651Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600802A (en) * | 2018-05-17 | 2018-09-28 | 佛山海格利德机器人智能设备有限公司 | A kind of shared set-top box |
| CN108737864A (en) * | 2018-05-17 | 2018-11-02 | 佛山海格利德机器人智能设备有限公司 | A kind of television sharing box infrared transmitter |
-
2006
- 2006-08-23 CN CNU2006200635509U patent/CN200941651Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600802A (en) * | 2018-05-17 | 2018-09-28 | 佛山海格利德机器人智能设备有限公司 | A kind of shared set-top box |
| CN108737864A (en) * | 2018-05-17 | 2018-11-02 | 佛山海格利德机器人智能设备有限公司 | A kind of television sharing box infrared transmitter |
| CN108737864B (en) * | 2018-05-17 | 2021-07-23 | 声望(上海)文化传播有限公司 | Infrared emitter of film and television sharing box |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 |