CN201066571Y - Video, image and text synchronous compression mixed display controller - Google Patents
Video, image and text synchronous compression mixed display controller Download PDFInfo
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- CN201066571Y CN201066571Y CNU2007200636544U CN200720063654U CN201066571Y CN 201066571 Y CN201066571 Y CN 201066571Y CN U2007200636544 U CNU2007200636544 U CN U2007200636544U CN 200720063654 U CN200720063654 U CN 200720063654U CN 201066571 Y CN201066571 Y CN 201066571Y
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 11
- 230000006835 compression Effects 0.000 title abstract description 3
- 238000007906 compression Methods 0.000 title abstract description 3
- 238000010030 laminating Methods 0.000 claims description 17
- 230000005236 sound signal Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a display controller, in particular to a compression and mixing display controller with synchronous video and words. The utility model includes a video decoder, a video multi-image processor, a micro controller, a video character-overlapping module, a video encoder, an analog switch and an audio power amplifier. The video encoder is connected with an outside video display terminal and the audio power amplifier is connected with an outside sound box. The output end of the video decoder is connected with the input end of the video multi-image processor, the output end of the video multi-image processor is connected with the input end of the video character-overlapping module. The output end of the micro controller is connected with the other input end of the video character-overlapping module. The output end of the video character-overlapping module is connected with the video encoder and the signal output end of the analog switch is connected with the output end of the audio power amplifier. The utility model can display the multimedia video information and character information on the video display terminal at the same time without causing the delay of the displayed information.
Description
Technical field
The utility model relates to a kind of display controller, is specifically related to the synchronous compressed mixed display controller of a kind of videography.
Background technology
In the prior art, video playback and text display have LCD (LCD), light emitting diode indicator (LED) etc., control circuit or controller control content displayed by special use, can play and demonstration derives from local disk, the standard interface peripheral hardware, video on the far-end server, but have following defective: present equipment can only show the single pass video information of control, then come display additional information when having added text to show by the video superimpose device, captions are directly superposeed on video, so just, can cause the demonstration of original video information incomplete, sometimes even have influence on and watch important information.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of videography synchronous compressed mixed display controller, can overall treatment multi-channel video information and Word message, with video information compression, output to display device synchronously with Word message, do not show with having stack respectively.
To achieve the above object of the invention, the technical scheme that the utility model is taked is, the synchronous compressed mixed display controller of described videography comprises Video Decoder, Multipicture processor, microcontroller, video character laminating module, video encoder, analog switch and audio-frequency power amplifier, wherein Video Decoder inserts outside multimedia video information, microcontroller inserts outside Word message, and analog switch inserts outside audio-frequency information; And the video display terminal of video encoder and outside links, audio-frequency power amplifier links with the audio amplifier of outside, the output terminal of Video Decoder connects the input end of Multipicture processor, the output terminal of Multipicture processor connects the input end of video character laminating module, the output terminal of microcontroller connects another input end of video character laminating module, the output terminal of video character laminating module inserts video encoder, analog switch signal output part accessing to audio power amplifier output terminal.
The product type that can select for use is: the selected product type of Video Decoder is SAA7113, the selected product type of Multipicture processor is AM-209M or TMS320DM643x, the selected product type of microcontroller is STC89CXX, the selected product type of video character laminating module is QL503A/B, the selected product type of video encoder is SAA7121, the selected product type of analog switch is CD4066, and the selected product type of audio-frequency power amplifier is TDA2030.
Described video information source has multiple: local disk or storage card, the standard interface peripheral hardware (as USB, DVD), or by far-end server wired, that wireless public network connects.The source of Word message can be the relevant information that queuing catchword system is produced.
Principle of work of the present utility model is: multimedia video information converts the CCIR656YUV 4:2:2 formatted data of standard to by Video Decoder, and the signal that Video Decoder is produced by microprocessor controls Multipicture processor carries out lossless compress again becomes the image that accounts for screen 4/5.
Queuing is wailed the Word message that produces and is delivered to microcontroller, by microcontroller the The data spi bus is delivered to video character laminating module and the combination of Multipicture processor generation image, obtain the CCIR656YUV 4:2:2 formatted data of graph text information and multimedia messages and one standard.Signal after handling is sent into video encoder, send video display terminal output it is reduced into video analog signal CVBS.
Sound signal comprises by with the sound signal of multimedia video information and the two paths of signals of forming with the audio-frequency information of Word message, be admitted to analog switch simultaneously, microprocessor controls is made as the voice-grade channel of following Word message with source of sound when queueing message is pointed out, then source of sound is set to follow the voice-grade channel of multimedia video information when no queuing reminding information, reach the purpose of automatic switchover source of sound, after the audio-frequency information send audio power amplifier of handling well amplifies, again through the audio amplifier sounding.
The utility model can make multimedia video information and Word message show simultaneously by video display terminal, and can not produce the time-delay of display message.
Description of drawings
Fig. 1 is the theory diagram of embodiment 1 in the utility model;
Fig. 2 is the theory diagram of embodiment 2 in the utility model.
In the accompanying drawings:
1-multimedia video information 2-Word message 3-audio-frequency information
4-Video Decoder 5-microcontroller 6-Multipicture processor
7-analog switch 8-video character laminating module 9-audio-frequency power amplifier
10-video encoder 11-video display terminal 12-audio amplifier
The synchronous compressed mixed display controller of 13-radiofrequency launcher 14-radio frequency receiver 15-videography
Embodiment
Embodiment 1:
As shown in Figure 1, the synchronous compressed mixed controller 15 of videography comprises Video Decoder 4, Multipicture processor 6, microcontroller 5, video character laminating module 8, video encoder 10, analog switch 7 and audio-frequency power amplifier 9, wherein Video Decoder 4 inserts outside multimedia video information 1, microcontroller 5 inserts outside Word message 2, and analog switch 7 inserts outside audio-frequency information 3; And the video display terminal 11 of video encoder 10 and outside links, audio-frequency power amplifier 9 links with the audio amplifier 12 of outside, wherein the output terminal of Video Decoder 4 connects the input end of Multipicture processor 6, the output terminal of Multipicture processor 6 connects the input end of video character laminating module 8, the output terminal of microcontroller 5 connects another input end of video character laminating module 8, the output terminal of video character laminating module 8 inserts video encoder 10, analog switch 7 signal output part accessing to audio power amplifiers 9 output terminals.
The composite video input signal CVBS that multimedia video information 1 (comprising video data that Internet video, DVD video data card are gathered and the multimedia video information such as video data on USB flash disk/hard disk) produces converts signal that the CCIR656YUV 4:2:2 formatted data of standard produces Video Decoder SAA7113 by the many picture processors of microcontroller AT89CXX control of video again to by Video Decoder SAA7113 (A/D) and carries out lossless compress and become the image that accounts for screen 4/5.
Queuing is wailed the Word message 2 that produces and is delivered to microcontroller ST89CXX, the image of the The data spi bus being delivered to video character laminating module QL503A/B and Multipicture processor A M-209M generation by microcontroller AT89CXX makes up, and obtains including the standard CC IR656YUV 4:2:2 formatted data of graph text information and multimedia messages.Signal after handling is sent into video encoder SAA7121 (D/A), send display output it is reduced into video analog signal CVBS.
The two-way audio signal then is admitted to analog switch CD4006, when microcontroller AT89CXX is controlled at the queueing message prompting source of sound is made as the queuing voice-grade channel, then source of sound is set to the multimedia passage when no queuing reminding information, reach the purpose of automatic switchover source of sound, after the audio frequency of handling well send the TDA2030 audio-frequency power amplifier to amplify, again through audio amplifier 12 sounding.
Audio/video information in the present embodiment supports wired mode to send on the display screen, and the information source of the synchronous compressed mixed controller of videography is the broadcast of network enabled real time flow medium simultaneously, the renewal of media data is very convenient, can be by setting up the unified broadcast of server, also can adopt data cells such as DVD, storage card to play separately, also can support functions such as synchronizing network video conference when demand is arranged, use-pattern is very flexible.
Embodiment 2:
See accompanying drawing 2, the signal of video encoder 10 and audio-frequency power amplifier 9 inserts radiofrequency launcher 13 in the present embodiment, insert video display terminal and audio amplifier by radio frequency receiver 14 again, adopt wireless mode to send to display screen, the 2.4GHz communication frequency of present standard is adopted in communication, and the remainder structure is consistent with principle and embodiment 1, its information communication distance, the reliability height makes things convenient for the installation of system.
Claims (2)
1. synchronous compressed mixed display controller of videography, comprise Video Decoder, Multipicture processor, microcontroller, video character laminating module, video encoder, analog switch and audio-frequency power amplifier, wherein Video Decoder inserts outside multimedia video information, microcontroller inserts outside queuing and wails the Word message that system produced, and analog switch inserts outside audio-frequency information; And the video display terminal of video encoder and outside links, audio-frequency power amplifier links with the audio amplifier of outside, it is characterized in that: the output terminal of Video Decoder connects the input end of Multipicture processor, the output terminal of Multipicture processor connects the input end of video character laminating module, the output terminal of microcontroller connects another input end of video character laminating module, the output terminal of video character laminating module inserts video encoder, analog switch signal output part accessing to audio power amplifier output terminal.
2. according to the synchronous compressed mixed display controller of the described videography of claim 1, it is characterized in that: the selected product type of Video Decoder is SAA7113, the selected product type of Multipicture processor is AM-209M or TMS320DM643x, the selected product type of microcontroller is STC89CXX, the selected product type of video character laminating module is QL503A/B, the selected product type of video encoder is SAA7121, the selected product type of analog switch is CD4066, and the selected product type of audio-frequency power amplifier is TDA2030.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200636544U CN201066571Y (en) | 2007-06-25 | 2007-06-25 | Video, image and text synchronous compression mixed display controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200636544U CN201066571Y (en) | 2007-06-25 | 2007-06-25 | Video, image and text synchronous compression mixed display controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066571Y true CN201066571Y (en) | 2008-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200636544U Expired - Fee Related CN201066571Y (en) | 2007-06-25 | 2007-06-25 | Video, image and text synchronous compression mixed display controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066571Y (en) |
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2007
- 2007-06-25 CN CNU2007200636544U patent/CN201066571Y/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 | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN TAITONG MEDIA INFORMATION CO., LTD. Free format text: FORMER OWNER: LIU SHAOLONG Effective date: 20100811 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410001 ROOM 701, BUILDING 18, KEDAJIAYUAN YINXINGYUAN, CHANGSHA CITY, HUNANPROVINCE TO: 410013 NO.8, LUTIAN ROAD, LUGU BASE, NEW + HIGH-TECHNOLOGY DEVELOPMENT ZONE, YUELU DISTRICT, CHANGSHA CITY, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100811 Address after: 410013 Hunan Province, Yuelu District city high tech Development Zone Changsha Valley base Lu Tin Road No. 8 Patentee after: Hunan Thai media information Co Ltd Address before: 410001 room 18, 701 ginkgo garden, HKUST garden, Changsha, Hunan Patentee before: Liu Shaolong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20110625 |