CN200956623Y - Wireless audio-video receiver with flash memory - Google Patents
Wireless audio-video receiver with flash memory Download PDFInfo
- Publication number
- CN200956623Y CN200956623Y CNU2006200145162U CN200620014516U CN200956623Y CN 200956623 Y CN200956623 Y CN 200956623Y CN U2006200145162 U CNU2006200145162 U CN U2006200145162U CN 200620014516 U CN200620014516 U CN 200620014516U CN 200956623 Y CN200956623 Y CN 200956623Y
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- video
- looking
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Abstract
The utility model discloses a wireless video and audio frequency receiver matching with a camera with a radio frequency transmission function. The utility model mainly solves the problems of great size, need for an external power supply, cable transmission of the receiving signal and inconvenience brought by the recording and playing separation when a television is used as a video and audio frequency receiver. The adopted art scheme is that a main control chip integrates an audio and video recording, a video decoding, a TFT screen driving with a MPEG-4 compression processing connected between an output terminal of a video decoder and an input terminal of a display, the main control chip is provided with a SDRAM controlled by a working program inside, a video input port of the main control chip is connected with an output port of the video decoder, an audio input port and an audio output port are respectively connected with an output terminal of a sound card and an input terminal of a sound card, an video and audio recording port is connected with a flash memory, a TFT screen driving port is connected with a display and the device is provided a built in battery. The utility model has the advantages of receiving and playing integration, portability and easy application etc, which especially suits to be combined with a wireless radio camera to constitute a wireless monitor system.
Description
Technical field
The utility model relates to a kind of voice receiver of looking, and particularly a kind of recording/displaying device that carries from charged pool, receives the wireless voice receiver of being taken by camera of looking that passes through S-band channel transmission video/audio signal.
Background technology
In the prior art, the surveillance of forming by camera and monitor, be used for the monitor that image shows, be to adopt desk-top fixed surveillance device, the image that surveillance utilizes camera to take is sent to Surveillance center by cable and is shown by monitor, also can be furnished with picture recording equipment, a plurality of cameras and a plurality of monitor or show simultaneously at a plurality of pictures of same monitor, Surveillance center monitors a plurality of camera head monitor points, but because in the surveillance, monitor and picture recording equipment need external power supply, received signal is owing to be the TV signal of VHF or uhf band, so camera and monitor and picture recording equipment can't be realized wireless signal and transmit, can only adopt wired and camera to monitor one to one and use videotape to record, the signal wire transmission of prior art can not be moved monitor and picture recording equipment, brings inconvenience to use.
Summary of the invention
For overcoming the above-mentioned technical deficiency that prior art exists, a kind of wireless voice receiver of looking of the utility model design with flash memory, the wireless voice receiver of looking of this band flash memory is from charged pool and memory device, utilize the wireless receiving module of S-band to receive the signal that camera is sent, by a main control chip to looking of receiving, audio signal monitors and use videotape to record.
The technical solution adopted in the utility model is: a kind of wireless voice receiver of looking with flash memory, comprise and look the audio frequency receiving circuit, Video Decoder, sound card, display, loud speaker, TV image signal shows from display by Video Decoder, audio signal is exported from loud speaker by sound card, looking the audio frequency receiving circuit is the S-band wireless receiving module, being connected to the collection audio frequency and video between the output of Video Decoder and display input records, video decode, TFT shields driving, the main control chip that the MPEG-4 compression is handled, establish the SDRAM of working procedure control in this main control chip, the delivery outlet of main control chip video input port receiver, video decoder, the audio frequency input/output port connects another I/O of sound card respectively, audio frequency and video are recorded mouth and are connect flash memory, the TFT screen drives mouth and connects display, wireless the looking of band flash memory established internal battery in the voice receiver, internal battery is looked the audio frequency receiving circuit respectively, Video Decoder, sound card, display, loud speaker, main control chip, the power end of SDRAM and flash memory is connected.
The beneficial effects of the utility model: the utility model adopts the looking of wireless receiving camera, audio signal, the wired connection that replaces prior art, of the present utility model by transposing look, the channel of audio frequency receiving circuit is corresponding with different cameras, the utility model is from charged pool, look the record one, be a kind ofly portablely look, audio reception device.Be specially adapted to form wireless monitoring system with the camera of wireless transmission.
Description of drawings
Fig. 1 is the utility model theory diagram
Fig. 2 is the utility model device connection layout
Among the figure, 1 channel button, 2 external video input ports, 3 external audio frequency input ports.
Embodiment
Looking voice receiver with reference to Fig. 1 band flash memory wireless comprises and looks the audio frequency receiving circuit, Video Decoder, sound card, display, loud speaker, TV image signal shows from display by Video Decoder, audio signal is exported from loud speaker by sound card, looking the audio frequency receiving circuit is the S-band wireless receiving module, being connected to the collection audio frequency and video between the output of Video Decoder and display input records, video decode, TFT shields driving, the main control chip that the MPEG-4 compression is handled, establish the SDRAM of working procedure control in this main control chip, the delivery outlet of main control chip video input port receiver, video decoder, the audio frequency input/output port connects the I/O of sound card respectively, look the audio recording mouth and connect flash memory, the TFT screen drives mouth and connects display, the band flash memory wireless looking establish internal battery in the voice receiver, internal battery respectively with the audio frequency receiving circuit, Video Decoder, sound card, display, loud speaker, main control chip, SDRAM, the power end of flash memory connects.
Fig. 1 is the utility model theory diagram, after wireless receiving module receives the looking of S-band, audio signal, in module, carry out demodulation, be divided into video and audio frequency two paths of signals, vision signal is by the input port of the video output connection Video Decoder of wireless receiving module, and another input port of Video Decoder is external video input port, and the delivery outlet of Video Decoder connects the video input port of main control chip, the TFT screen of main control chip drives mouth and connects display, and vision signal shows on display.Audio signal is connected the input port of sound card by the audio output port of wireless receiving module, the delivery outlet of sound card connects loud speaker, pass through loudspeaker plays, another input port of sound card connects external audio frequency input port 3, can receive the audio signal that other playback equipment is sent here, and the input/output port of sound card connects the audio frequency output input port of main control chip, send main control chip with audio signal, store by main control chip control, playback time receives the audio signal of resetting from main control chip, utilizes loudspeaker plays.Main control chip utilizes data/address bus and flash memory to carry out exchanges data, realizes the preservation and the playback of video/audio signal.
Fig. 2 is the utility model device connection layout, this practicality newly can be adopted the 2.4G wireless receiving module, this receiver module has four receive frequency: 2.414GHz, 2.432GHz, 2.450GHz, 2.468GHz, select the signal of a channel to carry out demodulation by a channel control switch 1, after the demodulation, vision signal is connected the input port of Video Decoder by 2.4G wireless receiving module video output, Video Decoder is TVP5150, it has two video input ports and a S terminal input port, another input port of Video Decoder is external video input port 2, vision signal becomes digital component video signal in the TVP5150 internal conversion, the video input port that the delivery outlet of digital component video signal by Video Decoder connects main control chip enters main control chip, main control chip receives the internal storage program control by control bus and data/address bus, vision signal is handled the back to be driven mouth by the TFT screen of main control chip and connects display, the utility model embodiment main control chip model is SPCA536-TFBGA, and it is the LCD of LCD-A025CN02 that display adopts model.2.4G audio signal is input to sound card after the wireless receiving module demodulation, drives loudspeaker plays by sound card, the utility model embodiment sound card is WM9711G for the AC97 serial model No..The WM9711G sound card has a plurality of input ports and output port, one of them port is an external audio frequency input port 3, the a pair of audio frequency input/output port of WM9711G connects the audio frequency output input port of SPCA536-TFBGA main control chip, the audio signal that wireless receiving module is received is sent to main control chip, the audio signal of the playback time that the reception main control chip is sent here.The SPCA536-TFBGA main control chip receives and looks, after the audio signal, program control by SDRAM is looked, the storage of audio signal or broadcast, look, audio signal carries out being stored in the flash memory after the digitlization, flash memory can be the SD card of 128MB, 256MB, 512MB or 1GB.The battery of the utility model embodiment adopts lithium battery, and the monnolithic case size only is 72 * 105 * 24 (mm).
Claims (7)
1 one kinds of wireless voice receivers of looking with flash memory, comprise and look the audio frequency receiving circuit, Video Decoder, sound card, display, loud speaker, the TV image signal of looking the reception of audio frequency receiving circuit shows from display by Video Decoder, audio signal is exported from loud speaker by sound card, it is characterized in that: the described audio frequency receiving circuit of looking is an ISM wave band wireless receiving module, being connected to the collection audio frequency and video between the output of Video Decoder and display input records, video decode, TFT shields driving, the main control chip that the MPEG-4 compression is handled, establish the SDRAM of working procedure control in this main control chip, main control chip video input port connects the delivery outlet of Video Decoder, the audio frequency input, delivery outlet connects the output of sound card respectively, input, look the audio recording mouth and connect flash memory, the TFT screen drives mouth and connects display, the band flash memory wireless looking establish internal battery in the voice receiver, internal battery respectively with the audio frequency receiving circuit, Video Decoder, sound card, display, loud speaker, main control chip, SDRAM, the power end of flash memory connects.
The wireless voice receiver of looking of 2 band flash memories according to claim 1 is characterized in that the described wireless audio frequency receiving circuit of looking is the 2.4G wireless receiving module.
The wireless voice receiver of looking of 3 band flash memories according to claim 1 is characterized in that described Video Decoder model is TVP5150.
The wireless voice receiver of looking of 4 band flash memories according to claim 1 is characterized in that described sound card is an AC97 series sound card.
The wireless voice receiver of looking of 5 band flash memories according to claim 4 is characterized in that the model of described AC97 series sound card is WM9711G.
The wireless voice receiver of looking of 6 band flash memories according to claim 1 is characterized in that described main control chip model is SPCA563-TFBGA.
The wireless voice receiver of looking of 7 band flash memories according to claim 1 is characterized in that described display is a LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200145162U CN200956623Y (en) | 2006-09-04 | 2006-09-04 | Wireless audio-video receiver with flash memory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200145162U CN200956623Y (en) | 2006-09-04 | 2006-09-04 | Wireless audio-video receiver with flash memory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956623Y true CN200956623Y (en) | 2007-10-03 |
Family
ID=38775205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200145162U Expired - Fee Related CN200956623Y (en) | 2006-09-04 | 2006-09-04 | Wireless audio-video receiver with flash memory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956623Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599285B (en) * | 2009-07-02 | 2013-04-03 | 深圳市万兴软件有限公司 | Method and system for recording audios |
-
2006
- 2006-09-04 CN CNU2006200145162U patent/CN200956623Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599285B (en) * | 2009-07-02 | 2013-04-03 | 深圳市万兴软件有限公司 | Method and system for recording audios |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |