CN201114418Y - TV signal receiving box - Google Patents
TV signal receiving box Download PDFInfo
- Publication number
- CN201114418Y CN201114418Y CNU2007201214427U CN200720121442U CN201114418Y CN 201114418 Y CN201114418 Y CN 201114418Y CN U2007201214427 U CNU2007201214427 U CN U2007201214427U CN 200720121442 U CN200720121442 U CN 200720121442U CN 201114418 Y CN201114418 Y CN 201114418Y
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- terminal
- interface
- hima
- signal
- receiving box
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Abstract
The utility model provides a TV signal receiver box which can be taken as a signal source of a video play system and comprises a shell, a cable interface of a cable TV arranged on the shell, an HIMA interface and a circuit board positioned in the shell. The circuit board is provided with a processing circuit which is connected with the cable interface of the cable TV and the HIMA interface; the processing circuit comprises a controller, a multi-standard multimedia tuner and an audio amplifier. The TV signal receiver box of the utility model can receive and process multi-standard analog television signals and then send the processed multi-standard analog television signals to various broadcast devices provided with HIMA interfaces to be played, thereby being suitable for various regions and countries; besides, if the HIMA interface is applied, only one multi-core cable is needed to connect the TV signal receiver box and the broadcast devices, thus avoiding chaos and inconvenience in the prior art caused by a plurality of cables connecting the TV signal receiver box and the broadcast devices.
Description
Technical field
The utility model relates to television system, more particularly, relates to the general TV signal receiving box of a kind of multi-modulation scheme.
Background technology
Arrival along with the Digital Television epoch, most simulated television all receives digital audio-video signal by external equipment in the prior art, as, pass through set-top box, DVD, DVB etc. after the conversion through the digital to analogy signal, show the signal that changes into A/V or low display resolutions such as Y, U, V after the digital signal reception to television set.In order to pass the signal to television set, need between television set and external equipment, be connected many communications cables, and each external equipment all needs independently power supply, cause the aerial lug complexity, install, use extremely inconvenient and take up space.For addressing these problems, the applicant has proposed the method and the device (seeing that application number is that 200510036215.X, publication number are CN1909635, open day to be the Chinese invention patent application of 2007.02.07) of interface between a kind of signal source and the playback equipment, this interface compatibility HDMI standard digital interface, it comprises HDMI line, power supply line, voice signal line, picture intelligence line, serial communication line and housing shroud line.This interface abbreviates the HIMA interface as.Adopt this HIMA interface, only need a multi-core cable can realize the transmission of various signals between signal source and the playback equipment, comprise digital signal and analog audio-video signal, and signal source powers by playback equipment, need not independently power supply.
Yet also having a problem is that the simulated television great majority that are widely used at present are single system, can only use in some particular locality, receives the anolog TV signals of corresponding standard.When the user was moved to another area from a certain area, if different television systems is adopted in two places, original television set then can't use.
The utility model content
The technical problems to be solved in the utility model is, can't receive the defective of the anolog TV signals of different systems at the above-mentioned single system simulated television of prior art, a kind of TV signal receiving box with the HIMA interface is provided, the anolog TV signals that it can receive multiple standard send television set or other playback equipment that equally also has the HIMA interface to by the HIMA interface after converting thereof into composite video baseband signal (CVBS) and audio signal.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of TV signal receiving box, comprise shell, be installed in cable of cable TV interface on the shell, the HIMA interface, and in the enclosure circuit board be installed; Circuit board is provided with the treatment circuit that links to each other with described cable of cable TV interface, HIMA interface; Described treatment circuit comprises controller, multi-modulation scheme multimedia tuner and audio frequency amplifier; Wherein: described controller links to each other with the control end of HIMA interface and multi-modulation scheme multimedia tuner; The input of described multi-modulation scheme multimedia tuner links to each other with described cable of cable TV interface, and its video output terminals links to each other with the HIMA interface, its audio output links to each other with the HIMA interface by audio frequency amplifier.
In TV signal receiving box described in the utility model, described HIMA interface is the integrated interface socket that has HDMI Interface Terminal, power supply terminal, RS232 communication terminal, L/R channel audio signal lead-out terminal, CVBS signal output terminal, YPBPR signal output terminal and remote signal terminal; Link to each other with the HIMA interface CVBS composite video signal output that comprises multi-modulation scheme multimedia tuner of described video output terminals is connected in the CVBS signal output terminal of HIMA interface; Described audio output is connected in the L/R channel audio signal lead-out terminal of HIMA interface by link to each other with the HIMA interface audio signal output end that comprises multi-modulation scheme multimedia tuner of audio frequency amplifier by audio frequency amplifier.
In TV signal receiving box described in the utility model, comprise the DC/DC power supply changeover device that is used to described multi-modulation scheme multimedia tuner and audio frequency amplifier that suitable power source is provided, the input of described DC/DC power supply changeover device is connected in the power supply terminal of described HIMA interface.
In TV signal receiving box described in the utility model, described multimedia tuner passes through I
2The C bus links to each other with serial communication terminal in the HDMI interface; Described controller links to each other with the remote signal terminal of HIMA interface and the control port of multimedia tuner respectively.
In TV signal receiving box described in the utility model, described treatment circuit also comprises the electronic switching circuit that links to each other with controller and DC/DC power supply changeover device.
In TV signal receiving box described in the utility model, described shell is provided with the ventilation and heat mouth.
In TV signal receiving box described in the utility model, described shell is provided with hook or the bearing that is used for fixing or supports described receiving box.
In TV signal receiving box described in the utility model, described shell both sides are provided with and cooperate the male member structure of inserting the interior guide groove of default cavity on the player.
In TV signal receiving box described in the utility model, the integrated socket of described HIMA interface comprises 31 terminals, and it is provided with as follows:
The 1st terminal: TMDS data 2+;
The 2nd terminal: TMDS data 2;
The 3rd terminal: TMDS data 2-;
The 4th terminal: TMDS data 1+;
The 5th terminal: TMDS data 1;
The 6th terminal: TMDS data 1-;
The 7th terminal: TMDS data 0+;
The 8th terminal: TMDS data 0;
The 9th terminal: TMDS data 0-;
The 10th terminal: the TMDS data+;
The 11st terminal: TMDS clock shielding;
The 12nd terminal: the TMDS clock-;
The 13rd terminal: remote control output;
The 14th terminal: SCL;
The 15th terminal: SDA;
The 16th terminal: HSYNC;
The 17th terminal: VSYNC;
The 18th terminal :+5V;
The 19th terminal: CVBS composite video;
The 20th terminal: VGND video ground wire;
The 21st terminal: video Y;
The 22nd terminal: video U;
The 23rd terminal: video V;
The 24th terminal: AGND audio frequency ground wire;
The 25th terminal: audio frequency L;
The 26th terminal: audio frequency R;
The 27th terminal: RXD;
The 28th terminal: TXD;
The 29th terminal: GND signal ground;
The 30th terminal: 12VB power supply;
The 31st terminal: GND power ground;
Wherein:
Described power supply terminal is corresponding to the 30th, 31 terminals;
Described RS232 communication terminal is corresponding to the 27th, 28,29 terminals;
Described L/R channel audio signal lead-out terminal is corresponding to the 24th, 25,26 terminals;
Described CVBS signal output terminal is corresponding to the 19th, 20 terminals;
Described YPBPR signal output terminal is corresponding to the 21st, 22,23 terminals;
Described remote control system signal terminal is corresponding to the 13rd terminal;
All the other terminals are corresponding with described HDMI Interface Terminal.
Implement TV signal receiving box of the present utility model, can be used as the signal source of audio/video player system, has following beneficial effect: the anolog TV signals that can receive multiple standard, deliver to after the processing on the playback equipment of the various HIMA of having interfaces and play, for example have separate television machine, PC, multimedia TV set of HIMA interface etc.Be fit to different regions or country's use.And, use the HIMA interface only to need a multicore cable, TV signal receiving box and playback equipment can be coupled together the confusion of having avoided in the prior art between the playback equipment and TV signal receiving box many cables to be connected being brought and inconvenient.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the electrical block diagram of the utility model TV signal receiving box;
Fig. 2 is the schematic diagram of the HIMA interface of the utility model TV signal receiving box;
Fig. 3 is the circuit theory diagrams of the DC/DC power supply of the utility model TV signal receiving box embodiment;
Fig. 4 is the circuit theory diagrams of the multimedia tuner of the utility model TV signal receiving box embodiment;
Fig. 5 is the circuit theory diagrams of the electronic switch of the utility model TV signal receiving box embodiment;
Fig. 6 is the circuit theory diagrams of the controller of the utility model TV signal receiving box embodiment.
Embodiment
The HIMA interface that the utility model TV signal receiving box adopts is a kind of analog-and digital-standard interface.Except that the compatible with HDMI standard digital interface, also comprise power supply, RS232 communication, L/R sound channel, CVBS, YPBPR, remote signal interface.Cooperate playback equipment with same HIMA interface, can power supply be provided, receive remote signal, carry out tuning by the HIMA interface by playback equipment the TV signal of the various standards that enter the TV signal receiving box by television set, and by HIMA interface reception control signal, carry out corresponding operating according to the control signal that receives, as automatic channel search, program add, program subtracts, volume adds, volume down etc.
As shown in Figure 1, TV signal receiving box of the present utility model comprises HIMA interface, cable of cable TV interface, DC/DC power supply changeover device, controller, multi-modulation scheme multimedia tuner and audio frequency amplifier.Wherein, DC/DC power supply changeover device, controller and multi-modulation scheme multimedia tuner and audio frequency amplifier are placed in the shell (housing designs becomes pancake usually), the interface socket (as shown in Figure 2) that the HIMA interface is integrated, it is installed in an end face of outer casing thickness direction and stretches out shell, the cable of cable TV interface is installed in relative other end, equally also stretches out the shell (not shown).Certainly, interface position is not limited to described herein, also can be arranged on same end face or adjacent face.
The DC/DC power supply changeover device is used to described controller, multimedia tuner and audio frequency amplifier power supply, and it is from the power supply of the power supply terminal reception DC12V of HIMA interface, and difference o controller, multimedia tuner and the required voltage of audio frequency amplifier.The power supply terminal output voltage homogeneous phase while when controller, multimedia tuner and audio frequency amplifier required voltage and HIMA interface, in the receiving box DC/DC power supply changeover device can be set.Another selection is, directly exports the power supply of various required voltages by the power supply terminal of HIMA interface, needs a plurality of power supply terminals in this case.
The input of multi-modulation scheme multimedia tuner links to each other with the cable of cable TV interface, its CVBS composite video signal output is connected in the CVBS signal output terminal of HIMA interface, and its audio signal output end is connected in the L/R channel audio signal lead-out terminal of HIMA interface by audio frequency amplifier.The multimedia tuner passes through I
2The C bus links to each other with serial communication terminal in the HDMI interface.Controller links to each other with the remote signal terminal of HIMA interface and the control port of multimedia tuner respectively.
As selection,, on its shell, be provided with the ventilation and heat mouth for making TV signal receiving box of the present utility model working properly.The ventilation and heat mouth can be out the bar shaped thermovent in the two sides of pancake shell, also is the heat radiation aperture that dot matrix distributes, and also can adopt other radiating mode.
TV signal receiving box of the present utility model can be freestanding, and is placed apart with playback equipment.In this case, can on its shell, be provided for fixing or supporting the hook or the bearing of described receiving box, to fix its position.Also can be provided with in the shell both sides to cooperate and insert the male member structure of presetting guide groove in the cavity on the player, at this moment, on in the default cavity HIMA interface combination hub is arranged, overall dimension with the TV signal receiving box is designed to corresponding with cavity simultaneously, HIMA interface position and socket are complementary, and are inserted into this socket during use and realize being electrically connected.
As shown in Figure 2, the HIMA interface of the utility model TV signal receiving box comprises 31 signal terminals, and 31 are respectively from terminal 1 to terminal:
1 TMDS data 2+
2 TMDS data 2
3 TMDS data 2-
4 TMDS data 1+
5 TMDS data 1
6 TMDS data 1-
7 TMDS data 0+
8 TMDS data 0
9 TMDS data 0-
10 TMDS data+
The shielding of 11 TMDS clocks
12 TMDS clocks-
13 remote controls output
14?SCL
15?SDA
16?HSYNC
17?VSYNC
18?+5V
19 CVBS composite videos
20 VGND video ground wires
21 video Y
22 video U
23 video V
24 AGND audio frequency ground wires
25 audio frequency L
26 audio frequency R
27?RXD
28?TXD
29 GND signal grounds
30 12VB power supplys
31 GND power grounds
That is to say that the 30th, 31 terminals are power supply terminal;
27th, 28,29 terminals are the RS232 communication terminal;
24th, 25,26 terminals are L/R channel audio signal lead-out terminal;
19th, 20 terminals are the CVBS signal output terminal;
21st, 22,23 terminals are the YPBPR signal output terminal;
The 13rd terminal is a remote control system signal terminal;
All the other terminals and HDMI Interface Terminal compatibility.
As shown in Figure 3, in one embodiment, the DC/DC power supply changeover device is converted to the output of DC5V with the input of the power supply of DC12V, is the power supply of multimedia tuner.
As shown in Figure 4, in one embodiment, the model that adopts Shenzhen state Long Wei Electronics Co., Ltd. to make is the multimedia tuner of ET-8F2E-QF106, and the multimedia tuner that it is powered for 5V can compatible PAL-D/K system, B/G system, I system, NTSC-M television system.Adopt I
2The total line traffic control of C, tuning, the phase-locked loop synchronous demodulation of phase-locked loop.
As shown in Figure 5, in one embodiment, between controller and DC/DC power supply changeover device, also be connected with an electronic switch (as CS9435).This electronic switch slave controller receives the ON/OFF control signal, and is multimedia tuner and audio frequency amplifier power supply or cuts off the power supply according to the ON/OFF control signal.
As shown in Figure 6, in one embodiment, controller adopts AT892051 MCU to realize that it adopts the power supply of DC12V.
The utility model TV signal receiving box can with playback equipment (as separate television machine, PC, the multimedia television etc.) collaborative work of band HIMA interface.Its operating principle is as follows: adopt Full remote controlled control, television set receives remote signal, and by the HIMA interface with telecontrol code or RXD TXD serial port control signal through the input of HIMA interface, send into AT892051 MCU processor controls, send the DVD control code after handling and begin control.
After the playback equipment start, with the remember condition that detects automatically when shutting down last time, when the TV signal receiving box is inserted in 3 mouthfuls of AUX, pressing playback equipment remote controller AUX 3 switches, central processing unit execution command in the playback equipment, switching signal and audio frequency and video passage, the playback equipment central processing unit sends the AXU3 start-up command, TV signal receiving box power supply of the present utility model is energized, and responds AUX3 device type, video output mode for the central processing unit of playback equipment.After the central processing unit of playback equipment received the instruction of responding, the video screen of playback equipment switched CVBS composite video pattern.While I
2C communication is sent the instruction of control TV by playback equipment lcd screen menu, as: (automatic channel search, program add, program subtracts, volume adds, volume down etc.).Unified telecontrol mode and communication standard.Pass through I
2The C Control on Communication.
The utility model TV signal receiving box electric power starting and standby principle: the MCU in the utility model TV signal receiving box is a low-power scm, when receiving start-up command, MCU AT89C201-P3.7 exports high level, U8 electronic switch CS9435 opens, give TV signal receiving box power devices, the TV signal receiving box is started working.When the user selects to change miscellaneous equipment, send standby command before the switching of playback equipment central processing unit, the TV signal receiving box receives standby command, and MCUAT89C201-P3.7 exports high-low level.U8 electronic switch CS9435 closes, and existing power supply is kept the MCUAT89C201 power supply, and this power consumption is less than 500mW.
TV signal receiving box of the present utility model is a very distinctive television receiver, and compatible PAL-D/K system, B/G system, I system, NTSC-M television system can be used for LCD separate television machine, PC, multimedia television, adopted I
2Synthetic and the phase-locked intermediate frequency demodulation of C bus frequency, wide region receives, compact conformation, microminiature is integrated, has realized single supply 5V power supply, and is low in energy consumption, also has advanced HDMI interface in addition.The HDMI interface is the development standard of any top box of digital machine in the future, connects simple and conveniently, and the HIMA interface comprises that digital serial ports RS232 communicates by letter, I
2C communication, audio frequency and video SD signal and the high-quality digital signal of audio frequency and video, power supply, remote signal etc. are expected to become following multimedia television and combination tv standard configuration equipment.
TV signal receiving box of the present utility model dismounting, replacing are conveniently, circuit part can be revised according to location television system standard, because playback equipment separates with the signal box, need not redesign or changed television set, only need to change a TV signal receiving box and get final product.
In one embodiment, the complete machine performance of the utility model TV signal receiving box is as shown in table 1.
Table 1 TV signal receiving box complete machine performance table
Claims (10)
1. a TV signal receiving box is characterized in that, comprises shell, is installed in cable of cable TV interface, HIMA interface and installation circuit board in the enclosure on the shell; Circuit board is provided with the treatment circuit that links to each other with described cable of cable TV interface, HIMA interface; Described treatment circuit comprises controller, multi-modulation scheme multimedia tuner and audio frequency amplifier; Wherein: described controller links to each other with the control end of HIMA interface and multi-modulation scheme multimedia tuner; The input of described multi-modulation scheme multimedia tuner links to each other with described cable of cable TV interface, and its video output terminals links to each other with the HIMA interface, its audio output links to each other with the HIMA interface by audio frequency amplifier.
2. TV signal receiving box according to claim 1, it is characterized in that described HIMA interface is the integrated interface socket that has HDMI Interface Terminal, power supply terminal, RS232 communication terminal, L/R channel audio signal lead-out terminal, CVBS signal output terminal, YPBPR signal output terminal and remote signal terminal; Link to each other with the HIMA interface CVBS composite video signal output that comprises multi-modulation scheme multimedia tuner of described video output terminals is connected in the CVBS signal output terminal of HIMA interface; Described audio output is connected in the L/R channel audio signal lead-out terminal of HIMA interface by link to each other with the HIMA interface audio signal output end that comprises multi-modulation scheme multimedia tuner of audio frequency amplifier by audio frequency amplifier.
3. TV signal receiving box according to claim 2, it is characterized in that, comprise the DC/DC power supply changeover device that is used to described controller, multi-modulation scheme multimedia tuner and audio frequency amplifier that suitable power source is provided, the input of described DC/DC power supply changeover device is connected in the power supply terminal of described HIMA interface.
4. TV signal receiving box according to claim 3 is characterized in that, described multimedia tuner links to each other with serial communication terminal in the HDMI interface by the I2C bus; Described controller links to each other with the remote signal terminal of HIMA interface and the control port of multimedia tuner respectively.
5. TV signal receiving box according to claim 4 is characterized in that described treatment circuit also comprises the electronic switching circuit that links to each other with controller and DC/DC power supply changeover device.
6. according to the TV signal receiving box shown in each in the claim 1 to 5, it is characterized in that described shell is provided with the ventilation and heat mouth.
7. according to the TV signal receiving box shown in each in the claim 1 to 5, it is characterized in that described shell is provided with hook or the bearing that is used for fixing or supports described receiving box.
8. according to the TV signal receiving box shown in the claim 6, it is characterized in that described shell is provided with hook or the bearing that is used for fixing or supports described receiving box.
9. according to the TV signal receiving box shown in the claim 6, it is characterized in that described shell both sides are provided with and cooperate the male member structure of inserting the interior guide groove of default cavity on the player.
10. according to each described TV signal receiving box in the claim 2 to 5, it is characterized in that the integrated socket of described HIMA interface comprises 31 terminals, it is provided with as follows:
The 1st terminal: TMDS data 2+;
The 2nd terminal: TMDS data 2;
The 3rd terminal: TMDS data 2-;
The 4th terminal: TMDS data 1+;
The 5th terminal: TMDS data 1;
The 6th terminal: TMDS data 1-;
The 7th terminal: TMDS data 0+;
The 8th terminal: TMDS data 0;
The 9th terminal: TMDS data 0-;
The 10th terminal: the TMDS data+;
The 11st terminal: TMDS clock shielding;
The 12nd terminal: the TMDS clock-;
The 13rd terminal: remote control output;
The 14th terminal: SCL;
The 15th terminal: SDA;
The 16th terminal: HSYNC;
The 17th terminal: VSYNC;
The 18th terminal :+5V;
The 19th terminal: CVBS composite video;
The 20th terminal: VGND video ground wire;
The 21st terminal: video Y;
The 22nd terminal: video U;
The 23rd terminal: video V;
The 24th terminal: AGND audio frequency ground wire;
The 25th terminal: audio frequency L;
The 26th terminal: audio frequency R;
The 27th terminal: RXD;
The 28th terminal: TXD;
The 29th terminal: GND signal ground;
The 30th terminal: 12VB power supply;
The 31st terminal: GND power ground;
Wherein:
Described power supply terminal is corresponding to the 30th, 31 terminals;
Described RS232 communication terminal is corresponding to the 27th, 28,29 terminals;
Described L/R channel audio signal lead-out terminal is corresponding to the 24th, 25,26 terminals;
Described CVBS signal output terminal is corresponding to the 19th, 20 terminals;
Described YPBPR signal output terminal is corresponding to the 21st, 22,23 terminals;
Described remote control system signal terminal is corresponding to the 13rd terminal;
All the other terminals are corresponding with described HDMI Interface Terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201214427U CN201114418Y (en) | 2007-07-10 | 2007-07-10 | TV signal receiving box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201214427U CN201114418Y (en) | 2007-07-10 | 2007-07-10 | TV signal receiving box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114418Y true CN201114418Y (en) | 2008-09-10 |
Family
ID=39966167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201214427U Expired - Fee Related CN201114418Y (en) | 2007-07-10 | 2007-07-10 | TV signal receiving box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201114418Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347210A (en) * | 2013-07-18 | 2013-10-09 | 深圳市迈乐数码科技股份有限公司 | Method and set top box for achieving state synchronization through HDMI interface |
| CN104869446A (en) * | 2015-05-27 | 2015-08-26 | 成都市斯达鑫辉视讯科技有限公司 | Novel set top box |
| CN107197188A (en) * | 2017-05-31 | 2017-09-22 | 西安诺瓦电子科技有限公司 | Many equipment cascading systems and the equipment with video interface |
-
2007
- 2007-07-10 CN CNU2007201214427U patent/CN201114418Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347210A (en) * | 2013-07-18 | 2013-10-09 | 深圳市迈乐数码科技股份有限公司 | Method and set top box for achieving state synchronization through HDMI interface |
| CN104869446A (en) * | 2015-05-27 | 2015-08-26 | 成都市斯达鑫辉视讯科技有限公司 | Novel set top box |
| CN107197188A (en) * | 2017-05-31 | 2017-09-22 | 西安诺瓦电子科技有限公司 | Many equipment cascading systems and the equipment with video interface |
| CN107197188B (en) * | 2017-05-31 | 2020-01-31 | 西安诺瓦星云科技股份有限公司 | Multi-device level system and device with video interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hengyang sea Microelectronics Technology Co., Ltd. Assignor: Xing Lin Contract record no.: 2011440020142 Denomination of utility model: TV signal receiving box Granted publication date: 20080910 License type: Common License Record date: 20110428 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20120710 |