CN202503598U - Video conversion device - Google Patents
Video conversion device Download PDFInfo
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- CN202503598U CN202503598U CN2012201265951U CN201220126595U CN202503598U CN 202503598 U CN202503598 U CN 202503598U CN 2012201265951 U CN2012201265951 U CN 2012201265951U CN 201220126595 U CN201220126595 U CN 201220126595U CN 202503598 U CN202503598 U CN 202503598U
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Abstract
The utility model discloses a video conversion device, comprising: an AV interface, a video graphics array (VGA) interface, a bluetooth interface, an HDMI, an HDMI selector, an AV converter, a VGA converter, and a bluetooth converter; and the video conversion device further comprises: a memory card interface and a converter, wherein the converter is connected between the memory card interface and the HDMI selector, and is used for converting audio and video signals stored in a memory card, which is connected with the memory card interface, into HDMI signals, and sending the HDMI signals to the HDMI selector. By using the technical scheme, the audio and video signals stored in the memory card which is connected with the memory card interface are converted into the HDMI signals by the converter, and are sent to the HDMI selector, and the HDMI signals are sent by the HDMI selector to a video display device, thereby the audio and video signals stored in the memory card are displayed in the video display device.
Description
Technical field
The utility model relates to technical field of video processing, more particularly, relates to a kind of video change-over device.
Background technology
In video change-over device, video channel has dual mode: multi-threadly go into multi-threadly to go out with multi-thread to go into single line and go out.Multi-threadly go into that multi-thread to go out be that the input interface of finger device is identical with the output interface number, output interface is connected to video display apparatus through cable, for example on the large screen television.And multi-thread to go into that single line goes out be corresponding output interface of a plurality of inputs of finger device---on the HDMI (High Definition Multimedia Interface, HDMI), be connected to video display apparatus through a HDMI line.
Existing video change-over device usually adopts the multi-thread video channel mode that single line goes out of going into.Video change-over device comprises four input interfaces and an output interface, and wherein input interface is respectively: AV interface, VGA (Video Graphics Array, Video Graphics Array) interface, HDMI and blue tooth interface, and output interface is the HDMI selector.The corresponding transducer of each input interface, this transducer converts the video-audio signal of input interface input into the HDMI signal, selects to output on the video display apparatus to show through the HDMI selector.
Yet along with present storage card, for example: the extensive use of USB flash disk, SD (Secure Digital, safe digital) card and CF (Compact Flash, flash memory) card, the user can't show the video-audio signal of storing on the storage card on video display apparatus.Therefore, be badly in need of a kind of video change-over device, memory card interface is provided, the video-audio signal of storing on the storage card is exported to video display apparatus and demonstration through transducer conversion back through the HDMI selector.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of video change-over device, can't the video-audio signal of storing on the storage card be exported to the problem that video display apparatus also shows through transducer conversion back through the HDMI selector to solve existing apparatus.
The utility model provides a kind of video change-over device; Comprise: AV interface, Video Graphics Array VGA interface, blue tooth interface, HDMI HDMI, HDMI selector; Be connected AV transducer between AV interface and HDMI selector, be connected the VGA transducer between VGA interface and HDMI selector and be connected blue tooth interface and the HDMI selector between the bluetooth transducer, also comprise:
Memory card interface;
And be connected between said memory card interface and said HDMI selector, the video-audio signal of the storage card stored that is used for said memory card interface is connected converts the HDMI signal into, and sends the transducer that said HDMI signal is given said HDMI selector.
Preferably, said transducer comprises:
Link to each other with said memory card interface, be used for said video-audio signal is converted into first decoder of 24bitRGB signal;
Being connected between said first decoder and said HDMI selector, is the HDMI signal with said 24bitRGB conversion of signals, and sends the HDMI reflector that said HDMI signal is given said HDMI selector.
Preferably, said VGA transducer comprises:
Link to each other with said VGA interface, the rgb signal of the video source that is used for the VGA interface is connected converts second decoder of 24bit digital signal into;
Be connected between said second decoder and said HDMI selector, convert said 24bit digital signal into the HDMI signal, and send the 2nd HDMI reflector that this HDMI signal is given said HDMI selector.
Preferably; Said VGA transducer also comprises: be connected between said the 2nd HDMI reflector and said HDMI selector; Obtain the extending display identification data EDID information of video display apparatus; Compare with the EDID information of self, choose the EDID information identical, simultaneously identical EDID feedback information is given the video adapting device of said HDMI selector with said video display apparatus.
Preferably, the bluetooth transducer comprises:
Link to each other with said blue tooth interface, the Bluetooth signal in the video source of said blue tooth interface connection is converted into the digital quantizer of digital signal;
Link to each other with said HDMI selector with said digital quantizer, convert said digital signal into the HDMI signal, and send the 3rd HDMI reflector that this HDMI signal is given said HDMI selector.
Preferably, also comprise:
Link to each other with memory card interface with said AV interface, VGA interface, blue tooth interface, HDMI, detect when being connected with the new video source on any interface, the input of said video change-over device is switched to the automatic switchover device in this new video source;
Link to each other with memory card interface with said AV interface, VGA interface, blue tooth interface, HDMI, with the manual switchover button of the input manual switchover of said video change-over device to any video source that interface connected.
Preferably, also comprise:
Link to each other with memory card interface with said AV interface, VGA interface, blue tooth interface, HDMI, detect when being connected with the new video source on any interface, the input interface of video display apparatus is switched to the controller of HDMI through the RS232 interface.
Preferably, also comprise: unidirectional flexible netting twine.
Preferably, said AV transducer comprises:
Link to each other with said AV interface, the composite video broadcast singal CVBS of the video source that is used for the AV interface is connected converts the 4th decoder of 16bit digital signal into;
Be connected between said the 4th decoder and said HDMI selector, convert said 16bit digital signal into the HDMI signal, and send the 4th HDMI reflector that this HDMI signal is given said HDMI selector.
Use technique scheme, the video-audio signal of the storage card stored that memory card interface connected converts the HDMI signal into through transducer, and sends to the HDMI selector.The HDMI selector sends to video display apparatus with the HDMI signal, has realized the video-audio signal of storage card stored is shown on video display apparatus.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing in the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of structural representation of the video change-over device that Fig. 1 provides for the utility model;
The another kind of structural representation of the video change-over device that Fig. 2 provides for the utility model;
Another structural representation of the video change-over device that Fig. 3 provides for the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the protection range of the utility model.
An embodiment
The inventor finds after deliberation; Though existing video change-over device can pass through AV interface, VGA interface, HDMI and blue tooth interface; With the conversion of signals in the video source that connects on the interface is the HDNI signal, is selected to output on the video display apparatus to show by the HDMI selector.But video change-over device provides interface for storage cards such as USB flash disk, SD card or CF card, and then the video-audio signal of storage card stored can't send to the video display apparatus demonstration.
In order to address the above problem; The utility model embodiment provides a kind of video change-over device; To realize that the signal in the storage card is sent to video display apparatus to be shown; Structural representation is as shown in Figure 1, comprising: AV interface 11, VGA interface 12, blue tooth interface 13, HDMI14, HDMI selector 15, AV transducer 16, VGA transducer 17, bluetooth transducer 18, memory card interface 19 and transducer 20.Wherein:
AV interface 11, VGA interface 12, blue tooth interface 13 and HDMI14 provide input interface, are used to connect video source.AV transducer 16 is connected between AV interface 11 and the HDMI selector 15; Be used for CVBS (Composite Video Broadcast Signal with the video source of AV interface 11 connections; The composite video broadcast singal) converts the HDMI signal into, and send to HDMI selector 15.
Bluetooth transducer 18 is connected between blue tooth interface 13 and the HDMI selector 15, and the Bluetooth signal of the video source that is used for blue tooth interface 13 is connected converts the HDMI signal into, and sends to HDMI selector 15.
HDMI14 directly links to each other with HDMI selector 15, provides HDMI signal in the video source that HDMI14 connects to HDMI selector 15.HDMI selector 15 chooses from the HDMI signal that receives that riches all the way gives video display apparatus, and the HDMI signal is shown in video display apparatus.HDMI selector 15 is chosen the HDMI signal that video source was converted to that last inserts video change-over device when choosing the HDMI signal.Certainly, also can be first HDMI signal that video source was converted to that inserts video change-over device.HDMI selector 15 among the utility model embodiment adopts and chooses the HDMI signal that video source was converted to that last inserts video change-over device when choosing the HDMI signal.
Use technique scheme, the video-audio signal of the storage card stored that memory card interface 19 is connected converts the HDMI signal into through transducer 20, and sends to HDMI selector 15.HDMI selector 15 sends to video display apparatus with the HDMI signal, has realized the video-audio signal of storage card stored is shown on video display apparatus.
Another embodiment
In the existing video change-over device; The rgb signal with different resolution in the different video source that the VGA transducer is connected the VGA interface converts the HDMI signal with 720P resolution into and sends to the HDMI selector; Cause in the crude oil signal image pixel to be lost, and then cause image fault or unintelligible.
In order to address this problem; The structural representation of the video change-over device that the utility model embodiment provides is as shown in Figure 2; Comprise: AV interface 11, VGA interface 12, blue tooth interface 13, HDMI14, HDMI selector 15; AV transducer 16, VGA transducer 17, bluetooth transducer 18, memory card interface 19 and transducer 20; Wherein: have in AV interface 11, VGA interface 12, blue tooth interface 13, HDMI14, the HDMI selector 15, AV transducer 16, VGA transducer 17, bluetooth transducer 18, memory card interface 19 and transducer 20 and video change-over device shown in Figure 1 same numeral module be connected identically, this is no longer set forth.
But when signal showed in video display apparatus, video display apparatus was according to the EDID Extended Display Identification Data of self, extending display identification data) the information shows signal.When the resolution of signal and the resolution in the EDID information not simultaneously, the signal that can cause exporting can't clearly show in video display apparatus.Therefore, for fear of this problem, VGA transducer 17 also comprises: video adapting device 173.
Video adapting device 173 is connected between said the 2nd HDMI reflector 172 and the HDMI selector 15; Obtain the EDID information of video display apparatus; Compare with the EDID information that is provided with in self; Choose the EDID information identical, give HDMI selector 15 with identical EDID feedback information simultaneously with video display apparatus.HDMI selector 15 can get access to EDID information total in video adapting device 173 and the video display apparatus simultaneously; Image output according to the EDID information adjustment that should have self; Therefore; The image of output is simultaneously by video adapting device and video display apparatus support, and then the normal demonstration of assurance image.
Bluetooth transducer 18 comprises: digital quantizer 181 and the 3rd HDMI reflector 182, and as shown in Figure 2.Wherein digital quantizer 181 links to each other with blue tooth interface 13, converts the Bluetooth signal in the video source of blue tooth interface 13 connections into digital signal.The 3rd HDMI reflector 182 is connected between digital quantizer 181 and the HDMI selector 15, converts digital signal into the HDMI signal, and sends to HDMI selector 15.Compare with existing bluetooth transducer, reduced converting Bluetooth signal into analog signal, and then with analog signal conversion be the process of digital signal again, therefore improved the HDMI quality of signals.
Use technique scheme, realized the video-audio signal of storage card stored is shown on video display apparatus.Simultaneously, the HDMI signal that draws after 17 conversions of VGA transducer has kept the resolution of rgb signal, guarantees that image is undistorted, and then can clear demonstration on video display apparatus.And bluetooth transducer 18 directly converts Bluetooth signal into digital signal, reduces to convert Bluetooth signal into analog signal, has therefore improved the HDMI quality of signals.
Another embodiment
See also Fig. 3, Fig. 3 is another structural representation of the video change-over device that provides of the utility model embodiment, except comprising each module shown in Figure 1, also comprises: automatic switchover device 21, manual switchover button 22 and controller 23.Wherein:
In addition, video display apparatus also has a plurality of input interfaces, as: AV interface, VGA interface and HDMI.When any interface in the video change-over device is connected with the new video source, need the HDMI that is interfaced to of user's manual switchover video display apparatus, the HDMI signal that sends with the HDMI selector of receiver, video conversion equipment 15.So in order to alleviate user's the amount of labour, the video change-over device that the utility model embodiment provides also comprises: controller 23, RS232 interface 24 and unidirectional flexible netting twine 25, as shown in Figure 3.
Unidirectional flexible netting twine 25 can be connected to the video on user's the computer in the video change-over device, and sends to the video display apparatus demonstration through HDMI selector 15.
Use technique scheme, realized automatic and manual switchover video source.Simultaneously, can the input interface of video display apparatus be automatically switched to HDMI, alleviate user's the amount of labour.
Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment is conspicuous to those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and the corresponding to wide region of features of novelty.
Claims (9)
1. video change-over device; Comprise: AV interface, Video Graphics Array VGA interface, blue tooth interface, HDMI HDMI, HDMI selector; Be connected AV transducer between AV interface and HDMI selector, be connected the VGA transducer between VGA interface and HDMI selector and be connected blue tooth interface and the HDMI selector between the bluetooth transducer; It is characterized in that, also comprise:
Memory card interface;
And be connected between said memory card interface and said HDMI selector, the video-audio signal of the storage card stored that is used for said memory card interface is connected converts the HDMI signal into, and sends the transducer that said HDMI signal is given said HDMI selector.
2. video change-over device according to claim 1 is characterized in that, said transducer comprises:
Link to each other with said memory card interface, be used for said video-audio signal is converted into first decoder of 24bitRGB signal;
Being connected between said first decoder and said HDMI selector, is the HDMI signal with said 24bitRGB conversion of signals, and sends the HDMI reflector that said HDMI signal is given said HDMI selector.
3. video change-over device according to claim 2 is characterized in that, said VGA transducer comprises:
Link to each other with said VGA interface, the rgb signal of the video source that is used for the VGA interface is connected converts second decoder of 24bit digital signal into;
Be connected between said second decoder and said HDMI selector, convert said 24bit digital signal into the HDMI signal, and send the 2nd HDMI reflector that this HDMI signal is given said HDMI selector.
4. video change-over device according to claim 3; It is characterized in that; Said VGA transducer also comprises: be connected between said the 2nd HDMI reflector and said HDMI selector, obtain the extending display identification data EDID information of video display apparatus, compare with self EDID information; Choose the EDID information identical, simultaneously identical EDID feedback information is given the video adapting device of said HDMI selector with said video display apparatus.
5. video change-over device according to claim 4 is characterized in that, the bluetooth transducer comprises:
Link to each other with said blue tooth interface, the Bluetooth signal in the video source of said blue tooth interface connection is converted into the digital quantizer of digital signal;
Link to each other with said HDMI selector with said digital quantizer, convert said digital signal into the HDMI signal, and send the 3rd HDMI reflector that this HDMI signal is given said HDMI selector.
6. video change-over device according to claim 5 is characterized in that, also comprises:
Link to each other with memory card interface with said AV interface, VGA interface, blue tooth interface, HDMI, detect when being connected with the new video source on any interface, the input of said video change-over device is switched to the automatic switchover device in this new video source;
Link to each other with memory card interface with said AV interface, VGA interface, blue tooth interface, HDMI, with the manual switchover button of the input manual switchover of said video change-over device to any video source that interface connected.
7. video change-over device according to claim 6 is characterized in that, also comprises:
Link to each other with memory card interface with said AV interface, VGA interface, blue tooth interface, HDMI, detect when being connected with the new video source on any interface, the input interface of video display apparatus is switched to the controller of HDMI through the RS232 interface.
8. according to any described video change-over device of claim 1-7, it is characterized in that, also comprise: unidirectional flexible netting twine.
9. according to any described video change-over device of claim 1-7, it is characterized in that said AV transducer comprises:
Link to each other with said AV interface, the composite video broadcast singal CVBS of the video source that is used for the AV interface is connected converts the 4th decoder of 16bit digital signal into;
Be connected between said the 4th decoder and said HDMI selector, convert said 16bit digital signal into the HDMI signal, and send the 4th HDMI reflector that this HDMI signal is given said HDMI selector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201265951U CN202503598U (en) | 2012-03-28 | 2012-03-28 | Video conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201265951U CN202503598U (en) | 2012-03-28 | 2012-03-28 | Video conversion device |
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| Publication Number | Publication Date |
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| CN202503598U true CN202503598U (en) | 2012-10-24 |
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| CN2012201265951U Expired - Fee Related CN202503598U (en) | 2012-03-28 | 2012-03-28 | Video conversion device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139519A (en) * | 2013-02-01 | 2013-06-05 | 深圳万兴信息科技股份有限公司 | Method and device for selection of input signals |
| CN109473081A (en) * | 2018-10-17 | 2019-03-15 | 歌尔科技有限公司 | A kind of interface circuit, display methods and display equipment |
| CN109743512A (en) * | 2019-03-19 | 2019-05-10 | 深圳市东明炬创电子有限公司 | A kind of switch of convertible unlike signal format |
| CN110415404A (en) * | 2019-07-19 | 2019-11-05 | 佛山市拓拓网络科技有限公司 | A kind of mobile phone induction system of building gate inhibition |
| CN111935422A (en) * | 2020-09-24 | 2020-11-13 | 山东超越数控电子股份有限公司 | Multichannel video signal switching system |
| CN115150658A (en) * | 2022-09-01 | 2022-10-04 | 宏晶微电子科技股份有限公司 | EDID detection method, chip, VGA signal source and electronic equipment |
-
2012
- 2012-03-28 CN CN2012201265951U patent/CN202503598U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139519A (en) * | 2013-02-01 | 2013-06-05 | 深圳万兴信息科技股份有限公司 | Method and device for selection of input signals |
| CN103139519B (en) * | 2013-02-01 | 2016-03-30 | 深圳万兴信息科技股份有限公司 | A kind of method that input signal is selected and device |
| CN109473081A (en) * | 2018-10-17 | 2019-03-15 | 歌尔科技有限公司 | A kind of interface circuit, display methods and display equipment |
| CN109473081B (en) * | 2018-10-17 | 2023-11-21 | 歌尔科技有限公司 | Interface circuit, display method and display device |
| CN109743512A (en) * | 2019-03-19 | 2019-05-10 | 深圳市东明炬创电子有限公司 | A kind of switch of convertible unlike signal format |
| CN110415404A (en) * | 2019-07-19 | 2019-11-05 | 佛山市拓拓网络科技有限公司 | A kind of mobile phone induction system of building gate inhibition |
| CN111935422A (en) * | 2020-09-24 | 2020-11-13 | 山东超越数控电子股份有限公司 | Multichannel video signal switching system |
| CN115150658A (en) * | 2022-09-01 | 2022-10-04 | 宏晶微电子科技股份有限公司 | EDID detection method, chip, VGA signal source and electronic equipment |
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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: 20121024 Termination date: 20140328 |