CN202231796U - Videophone with audio and video output function - Google Patents
Videophone with audio and video output function Download PDFInfo
- Publication number
- CN202231796U CN202231796U CN2011202117149U CN201120211714U CN202231796U CN 202231796 U CN202231796 U CN 202231796U CN 2011202117149 U CN2011202117149 U CN 2011202117149U CN 201120211714 U CN201120211714 U CN 201120211714U CN 202231796 U CN202231796 U CN 202231796U
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Abstract
The utility model aims at disclosing a videophone with an audio and video output function, which comprises a main control module, an audio output module and a video output module. The audio output module and the video output module are connected with an audio output end and a video output end of the main control module respectively. The main control module is further connected with a television (TV) converting module for outputting high-quality video images, and the TV converting module is connected with the video output end of the main control module. Pixel data (video graphic array (VGA) controller) are received by adding TV converting module and converted into a national television system committee (NTSC) or programmable array logic (PAL) television form, high quality video images are output, the number of receivers can be increased, a use range of receiving is enlarged, and the purpose of the videophone is achieved.
Description
Technical field
The utility model relates to a kind of video telephone, particularly a kind of video telephone with audio frequency and video output function.
Background technology
Along with popularizing of voip technology, the hardware terminal of diverse network conversation constantly occurs, and most of networking telephone does not have too many extendable functions.
Conversation on video telephone in the market is many to present the image interchange with screen, because the video telephone volume is less, and is limited by the phone internal microphone, camera parameter and Power Limitation have certain number of users during conversation, receive words to send the words area constraints.
Therefore, need a kind of video telephone especially, solved the problem of above-mentioned existing existence with audio frequency and video output function.
The utility model content
The purpose of the utility model is to provide a kind of video telephone with audio frequency and video output function; To the deficiency of prior art, at the proper network voice, on the basis of video calling; The interpolation audio frequency of will conversing; The expanded function of video output both can satisfy ordinary family user's use, also can satisfy company's miniature video meeting instructions for use simultaneously.
The technical problem that the utility model solved can adopt following technical scheme to realize:
A kind of video telephone with audio frequency and video output function; It comprises a main control module, an audio frequency output module and a video output module; Said audio frequency output module and said video output module respectively with said main control module on audio output be connected with video output terminals; It is characterized in that, also be connected with on the said main control module one be used for the outputting high quality video pictures the TV modular converter, said TV modular converter is connected on the video output terminals of said main control module.
In an embodiment of the utility model, said TV modular converter comprises an electric power loop and a control loop, the input termination 12V power supply of said electric power loop, and the output of said electric power loop connects the power input of said control loop.
In an embodiment of the utility model, said electric power loop comprises a DC/AC conversion chip, capacitor C 13, capacitor C 14, capacitor C 16, resistance R 14, resistance R 16 and inductance L 25; One end ground connection of capacitor C 13, the other end of capacitor C 13 connects 3 pin of DC/AC conversion chip and connects the VDD5 link, and the VDD5 link connects the 12V power supply; 1 pin of DC/AC conversion chip connects an end of resistance R 16 and an end of resistance R 14 respectively; The other end ground connection of resistance R 16; The other end of resistance R 14 connects 2 pin of DC/AC conversion chip and 4 pin of DC/AC conversion chip respectively, 2 pin of DC/AC conversion chip connect respectively capacitor C 14 an end and capacitor C 16 an end and be connected the VDT3 link, VDT3 link output 3.3V voltage; The other end ground connection of capacitor C 14, the other end ground connection of capacitor C 16; The VDT3 link connects the NVDD link through inductance L 25, and the NVDD link connects the power input of said control loop.
In an embodiment of the utility model, said control loop comprises a control chip, resistance R 153, resistance R 154, resistance R 156, inductance L 27 and interface chip P16; The output of said electric power loop connects 32 pin of control chip and an end of resistance R 154, the other end ground connection of resistance R 154 respectively through resistance R 153; 23 pin of said control chip are through an end and the ground connection of resistance R 156 connection inductance L 27,2 pin of the other end connecting interface chip P16 of inductance L 27.
The video telephone with audio frequency and video output function of the utility model; Receive pixel data (vga controller) through increasing the TV modular converter; And converting NTSC or PAL TV format to, the outputting high quality video pictures can increase listener's quantity; Talked about the scope of application, realized the purpose of the utility model.
The characteristics of the utility model can consult this case graphic and below better execution mode detailed description and obtain to be well understood to.
Description of drawings
Fig. 1 is the structural representation of the video telephone with audio frequency and video output function of the utility model;
Fig. 2 is the circuit theory diagrams of the TV modular converter of the utility model;
Fig. 3 is the circuit theory diagrams in power supply electricity loop of the TV modular converter of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1; The video telephone with audio frequency and video output function of the utility model; It comprises a main control module 100, an audio frequency output module 200 and a video output module 300; Said audio frequency output module 200 and said video output module 300 respectively with said main control module 100 on audio output and video output terminals; Also be connected with on the said main control module 100 one be used for the outputting high quality video pictures TV modular converter 400, said TV modular converter 400 is connected on the video output terminals of said main control module 100.
As shown in Figures 2 and 3, said TV modular converter 400 comprises an electric power loop 410 and a control loop 420, the input termination 12V power supply of said electric power loop 410, and the output of said electric power loop 410 connects the power input of said control loop 420.
In the utility model, said electric power loop 410 comprises a DC/AC conversion chip U4, capacitor C 13, capacitor C 14, capacitor C 16, resistance R 14, resistance R 16 and inductance L 25; One end ground connection of capacitor C 13, the other end of capacitor C 13 connect 3 pin of DC/AC conversion chip U4 and connect the VDD5 link, and the VDD5 link connects the 12V power supply; 1 pin of DC/AC conversion chip U4 connects an end of resistance R 16 and an end of resistance R 14 respectively; The other end ground connection of resistance R 16; The other end of resistance R 14 connects 2 pin of DC/AC conversion chip U4 and 4 pin of DC/AC conversion chip U4 respectively, 2 pin of DC/AC conversion chip U4 connect respectively capacitor C 14 an end and capacitor C 16 an end and be connected the VDT3 link, VDT3 link output 3.3V voltage; The other end ground connection of capacitor C 14, the other end ground connection of capacitor C 16; The VDT3 link connects the NVDD link through inductance L 25, and the NVDD link connects the power input of said control loop 420.
Wherein, DC/AC conversion chip U4 adopts the chip of REG1117 series.
In the utility model, said control loop 420 comprises a control chip U23, resistance R 153, resistance R 154, resistance R 156, inductance L 27 and interface chip P16; The output VDT3 of said electric power loop 410 connects 32 pin of control chip U23 and an end of resistance R 154 respectively through resistance R 153, and the other end ground connection of resistance R 154 provides system voltage for control chip U23; 23 pin of said control chip U23 are through an end and the ground connection of resistance R 156 connection inductance L 27,2 pin of the other end connecting interface chip P16 of inductance L 27.
Wherein, control chip U23 adopts the CH7013B series digit conversion of signals chip of CHRONTEL.
This control chip U23 receives the pin0-17 signal from LCD simultaneously, handles through control chip U23 command signal, and the CVBS video signal portions is outputed to external equipment through interface chip P16.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (4)
1. video telephone with audio frequency and video output function; It comprises a main control module, an audio frequency output module and a video output module; Said audio frequency output module and said video output module respectively with said main control module on audio output be connected with video output terminals; It is characterized in that, also be connected with on the said main control module one be used for the outputting high quality video pictures the TV modular converter, said TV modular converter is connected on the video output terminals of said main control module.
2. the video telephone with audio frequency and video output function as claimed in claim 1; It is characterized in that; Said TV modular converter comprises an electric power loop and a control loop; The input termination 12V power supply of said electric power loop, the output of said electric power loop connects the power input of said control loop.
3. the video telephone with audio frequency and video output function as claimed in claim 2 is characterized in that, said electric power loop comprises a DC/AC conversion chip, capacitor C 13, capacitor C 14, capacitor C 16, resistance R 14, resistance R 16 and inductance L 25; One end ground connection of capacitor C 13, the other end of capacitor C 13 connects 3 pin of DC/AC conversion chip and connects the VDD5 link, and the VDD5 link connects the 12V power supply; 1 pin of DC/AC conversion chip connects an end of resistance R 16 and an end of resistance R 14 respectively; The other end ground connection of resistance R 16; The other end of resistance R 14 connects 2 pin of DC/AC conversion chip and 4 pin of DC/AC conversion chip respectively, 2 pin of DC/AC conversion chip connect respectively capacitor C 14 an end and capacitor C 16 an end and be connected the VDT3 link, VDT3 link output 3.3V voltage; The other end ground connection of capacitor C 14, the other end ground connection of capacitor C 16; The VDT3 link connects the NVDD link through inductance L 25, and the NVDD link connects the power input of said control loop.
4. the video telephone with audio frequency and video output function as claimed in claim 2 is characterized in that, said control loop comprises a control chip, resistance R 153, resistance R 154, resistance R 156, inductance L 27 and interface chip P16; The output of said electric power loop connects 32 pin of control chip and an end of resistance R 154, the other end ground connection of resistance R 154 respectively through resistance R 153; 23 pin of said control chip are through an end and the ground connection of resistance R 156 connection inductance L 27,2 pin of the other end connecting interface chip P16 of inductance L 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202117149U CN202231796U (en) | 2011-06-21 | 2011-06-21 | Videophone with audio and video output function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202117149U CN202231796U (en) | 2011-06-21 | 2011-06-21 | Videophone with audio and video output function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202231796U true CN202231796U (en) | 2012-05-23 |
Family
ID=46082368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202117149U Expired - Fee Related CN202231796U (en) | 2011-06-21 | 2011-06-21 | Videophone with audio and video output function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202231796U (en) |
-
2011
- 2011-06-21 CN CN2011202117149U patent/CN202231796U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20130621 |