CN100464567C - Integrated video-frequency siganl exchanging apparatus and method - Google Patents
Integrated video-frequency siganl exchanging apparatus and method Download PDFInfo
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- CN100464567C CN100464567C CNB2005100203613A CN200510020361A CN100464567C CN 100464567 C CN100464567 C CN 100464567C CN B2005100203613 A CNB2005100203613 A CN B2005100203613A CN 200510020361 A CN200510020361 A CN 200510020361A CN 100464567 C CN100464567 C CN 100464567C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
- H04N7/104—Switchers or splitters
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Abstract
The switching unit includes video input ports, video output ports and video conversion unit set. There are M pieces of video input ports, and N pieces of video output ports; where M, N are natural number, and at least one from M, N is larger than and equal to 2. The video conversion unit set can implement M*N pieces of video signal conversion. After input, output video signals are connected to video input ports, video output ports, and switched to the video conversion unit set, the video conversion unit set converts the input video signals in a data format to the output video signals in recognizable video data format. The device can realize interconversion among different formats of video signal so as to implement operations for editing, processing video signal in each format, and outputting synthesized signal to each video device. The invention also realizes functional expansion of video signal and synthesized application, and lowers cost.
Description
[technical field]
The present invention relates to a kind of apparatus and method that can realize the vision signal exchange.
[background technology]
Now, the application of comprehensive video more and more widely, the user is also more and more higher to the functional requirement of this kind equipment, but this class of electronic devices can only adopt the application apparatus (as VGA/TV/DVD/VCD/ multi-frame TV etc.) of simple function, maybe can only realize the video conversion of simple function, be not easy to electronic equipment is carried out the integrated function expansion.
Because function singleness, thereby cause: 1) the multi-frame TV technology already maturation but can't produce in enormous quantities; 2) video wall and many pictures watch-dog price is high and can't extensive use; 3) CRT of the CRT of television set and television set can't organically merge; 4) LCD TV and plasm TV and can't adopt mature technology, the product of simulated television; 5) digital high-definition television can only be programmed by the expensive device of special use; 6) repeatedly use each formation of simple function transducer and increase " conversion iterates error ", cause the picture quality to descend, these all make this kind equipment of a high price aspect integrated application, and owing to can not realize function expansion and comprehensive utilization, so can only lay particular emphasis on the making single product, and then cause the significant wastage of system resource, materials and equipment resources.
[summary of the invention]
The object of the present invention is to provide a kind of video-signal converting apparatus and method that can realize mutual exchange between the various existing video signal forms.
The object of the present invention is achieved like this: this integrated video-frequency siganl exchanging apparatus comprises the video inputs mouth, video-out port, CPU and video converting unit group, the video inputs mouth has M, video-out port has N, M, N is natural number and wherein one of at least more than or equal to 2, CPU is in order to directly to finish the conversion between the digital video signal and the operating state of video converting unit group is controlled, video converting unit group comprises M*N vision signal converting unit, make input, outputting video signal connects the video input respectively, behind the output port, CPU discerns and switches to corresponding video converting unit to vision signal, this video converting unit is the discernible video signal format of outputting video signal with the Data Format Transform of incoming video signal, video converting unit group comprises Analog-digital vision signal converting unit, this Analog-digital vision signal converting unit comprises the composite video codec unit, the rgb video signal unit, AD converting unit and video output integer buffer unit, the composite video codec unit will and be isolated R from the vision signal decoding of video inputs mouth input, G, the B vision signal, this R, G, the B signal is input to the rgb video signal unit, external sync mode in this rgb video signal unit is realized determining, synchronizing speed, clock, AD conversion accuracy and finish the input and output of rgb signal, the AD converting unit is to R, G, the B signal carries out analog-to-digital conversion, and vision signal integer buffer unit is to digital signal integer and buffer memory after changing.
Described video converting unit group also comprises digital-analogue vision signal converting unit, and this digital-analogue vision signal converting unit comprises video input integer buffer unit, DA converting unit, the rgb video signal unit that connects in turn.
Described video converting unit group also comprises simulation-analog video signal converting unit, this simulation-analog video signal converting unit comprises the composite video codec unit, the rgb video signal unit, the AD converting unit, CPU and DA converting unit, the composite video codec unit is isolated the rgb signal of incoming video signal and is sent into the rgb video signal unit, after AD converting unit AD conversion, send CPU again, after CPU is finished processing with signal according to the standard that will change, after DA converting unit DA conversion, deliver to the rgb video signal unit again, the composite video codec unit is the vision signal standard of respective standard with the vision signal of rgb video signal unit output according to the signal standards composite coding of variant standard, realizes the conversion of analog video signal between the different systems.
Described video converting unit group also comprises single-image-many picture video signals converting unit, this vision signal converting unit comprises AD converting unit and video output integer buffer unit, after changing through the AD converting unit, the rgb signal of single-image vision signal directly sends into video output integer buffer unit, by video output data integer buffer unit vision signal is delivered to CPU again, it is synthetic that CPU is finished picture with each single-image digital video signal according to editting function.
Described digital video signal input port is selected from: VCD, DVD, SVCD, MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, Avi video signal port and meet the digital video signal port of video communication standard, the analog video signal input port is selected from: video video signal port, S-video video signal port and rgb video signal port.
Described digital video signal output port is selected from: VCD, DVD, SVCD, MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, Avi digital video signal port, and the digital video signal port, Digital Television display driver port, computer that meet the video communication standard with CRT display driver port and computer with LCD display driver port; The analog video signal output port is selected from: video video signal port, S-video video signal port and rgb video signal port.
Compared with prior art, the present invention has following advantage: 1) this device can be realized the mutual conversion between the various different video signal formats in a slice IC or a set of equipment, play, handle various vision signals thereby can be implemented on a kind of video equipment, realize the function expansion and the integrated use of vision signal, reduced production cost; 2) by the setting of single-image-many picture video signals converting unit, the TV programme that can make many pictures on the common video signal has strengthened TV functions, has reduced cost of manufacture.3) make full use of ripe simulated television production technology, realize the common simulation TV is converted to digital lcd TV or digital plasm TV with lowest costs, the simplest mode.
[description of drawings]
Fig. 1 is the theory diagram of integrated video-frequency siganl exchanging apparatus of the present invention.
Fig. 2 is that the present invention carries out the theory diagram changed between the analog and digital video signal.
Fig. 3 is that the present invention carries out the theory diagram changed between numeral and the analog video signal.
Fig. 4 is the theory diagram that the present invention realizes multi-frame TV.
Fig. 5 is the theory diagram that the present invention realizes video wall.
Fig. 6 is the flow chart of the method for integrated video-frequency exchange of the present invention.
[embodiment]
Integrated video-frequency siganl exchanging apparatus of the present invention is in order to the mutual conversion between the vision signal that realizes various different systems, and it can be applicable to existing all kinds of analog video signal (as TV, video wall, watch-dog, video camera, video editor etc.) and digital video signal (as XGA, PDA, DVD, VCD, LCD TV and plasm TV etc.).
See also Fig. 1, this integrated video-frequency conversion equipment comprises some video signal port and video converting unit group.Video signal port comprises video inputs mouth and video-out port, this video inputs mouth can be for various numerals or analog video signal input, video-out port can be converted to required numeral or analog video signal by video converting unit group with various simulations, digital video signal for various numerals or analog video signal output.In the present embodiment, the video inputs mouth has M, wherein M is a natural number, this video inputs mouth is selected from one or both in analog video signal port and the digital video signal port, wherein the analog video signal input port can be the video video signal port, S-video video signal port or rgb video signal port, and this analog video input signal port also can compatible PAL, NTSC or SECAM standard, digital video signal input port such as VCD, DVD, SVCD, or MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, the digital video signal port of Avi and video communication standard.Video-out port has N, wherein N is a natural number, and M, among the N one of at least more than or equal to 2, this video-out port is selected from one or both in analog video signal port and the digital video signal port, the analog video signal output port can be the video video signal port, S-video video signal port or rgb video signal port, and this analog video input signal port can compatible PAL, NTSC or SECAM standard, the digital video signal output port can be VCD, DVD, SVCD, or MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, Avi video signal port and meet the digital video signal port of video communication standard, also can for Digital Television display driver port (as liquid crystal, the plasm TV port), computer CRT display driver port or computer LCD display driver port etc.Above-mentioned by this M video inputs mouth and N video-out port, form M*N corresponding input, the transduction pathway between the outputting video signal.In addition,, can keep the mature technology of simulated television, only need that the CRT picture tube is replaced by LCD display and just simulated television can be converted to liquid crystal or plasma digital television by the rgb video signal port of special setting.
Video converting unit group can realize the conversion of M*N vision signal, and promptly corresponding to each group incoming video signal and outputting video signal, all having one, can to carry out these two kinds of vision signal video signal converted converting units corresponding with it.This video converting unit group comprises following a few class: simulation-analog video signal converting unit, Analog-digital vision signal converting unit, digital-analogue vision signal converting unit and numeral-digital video signal converting unit, its respectively in order to realize between two analog video signals, mutual conversion between simulation and the digital video signal, between two digital video signals.This device also comprises CPU, and this CPU is controlled to the data processing of vision signal and to the operating state of video converting unit group in order to realization.During this integrated video-frequency conversion equipment work, incoming video signal and outputting video signal are connected on corresponding video input, output port respectively, CPU to input, outputting video signal is discerned and confirm, judge the input that is connected, the video signal format of outputting video signal, select the corresponding video signals converting unit then and control its operating state, by the mutual conversion between this vision signal converting unit realization corresponding video signal format.In the present embodiment, for different inputs, outputting video signal, can adopt identical vision signal converting unit, different vision signal converting units also can adopt the identical functions element.
In addition, this device also comprises digital video input (data in) integer buffer unit and digital video output (data out) the data integer buffer unit that is connected with CPU, the vision signal that rgb video signal is finished after digital-to-analogue (the being AD) conversion enters digital video output (data out) integer buffer unit, need finish modulus (DA) video signal converted and be introduced into digital video input (data in) integer buffer unit, the vision signal after modulus (DA) conversion then is input to the composite video codec or directly exports R, G, B vision signal.
Video, converting unit when analog videos such as S-video carry out changing between the analog and digital video signal comprises the composite video codec, the rgb video signal unit, AD/DA converting unit and video data integer buffer unit, the composite video codec unit is in order to encoding video signal and decoding, the rgb video signal unit is in order to realize determining interior external sync mode, synchronizing speed, clock, the input and output of AD/DA conversion accuracy and rgb signal, the AD/DA converting unit is in order to realize the conversion between the analog and digital video signal, video data integer buffer unit comprises video input integer buffer unit and video output integer buffer unit, its in order to the conversion before, after digital video signal carry out integer and buffer memory, for Analog-digital vision signal converting unit, then be the AD converting unit, this AD converting unit receives R, G, the B analog signal is also carried out analog-digital conversion to it.For digital-analogue vision signal converting unit, then be the DA converting unit, R, G, B vision signal after the DA conversion are delivered to the rgb video signal unit.
The rgb signal of television set, computer can be imported in this rgb video signal unit; Or the rgb signal after composite video codec decoding back and the DA conversion, also can directly send into AD converting unit, composite video codec or convert television set, the required standard rgb signal output of computer to.
For the conversion between the digital video signal, then the integer cache interface is imported, exported to input data signal through CPU and data, directly finish conversion between the digital video signal by CPU, and must not pass through the composite video codec unit, in this case, CPU is described vision signal converting unit.
The rgb video signal unit can directly connect AD or DA converting unit and composite video codec, and it also can directly export the rgb signal of TV or convert the output of XGA signal to without AD or DA converting unit and composite video codec.
Simulation-analog video signal converting unit is finished coding, decoding and input, the output of analog signal part by composite video codec unit and rgb video signal unit.
For the conversion between single-image and the many picture video signals, it is also realized by the vision signal converting unit, this vision signal converting unit comprises composite video codec unit, rgb video signal unit, AD/DA converting unit and video data integer buffer unit, is finished control, the editor, synthetic of picture by CPU.The rgb video signal unit is in order to realize determining the input and output and the system conversion of interior external sync mode, synchronizing speed, clock, AD/DA conversion accuracy and rgb signal, the AD/DA converting unit is used for modulus between the vision signal and digital-to-analogue conversion, video input integer buffer unit and video output integer buffer unit are for the digital video signal before and after the conversion and carry out buffer memory and integer, and the composite video codec unit is in order to finish decoding, the coding to vision signal.
The concrete transfer process of integrated video-frequency conversion equipment of the present invention is as follows:
1) sees also Fig. 1 and Fig. 2, when incoming video signal is an analog video signal, as video camera, analog video signals such as television set, and outputting video signal is a digital video signal, during as computer or LCDs, vision signal elder generation process composite video codec by the input of video inputs mouth, isolate R after the decoding, G, the B signal is sent into the rgb video signal unit, rgb video signal also can be directly inputted into the rgb video signal unit and need not pass through the composite video codec, this R, G, the B signal is through the rgb video signal unit, send into video output integer buffer unit after the conversion of AD converting unit, and export CPU to through data out interface by this video output integer buffer unit, in cooperating simultaneously, external clock and control circuit are implemented the real-time digitization conversion of digital video signal, wherein during the internal clocking mode of operation, analog to digital conversion circuit (AD) signal is finished conversion according to the internal clocking synchronizing signal; During the external clock mode of operation, A/D convertor circuit is finished conversion according to outside input clock synchronizing signal, thereby realizes the conversion of all kinds of analog video-digital videos.
2) see also Fig. 1 and Fig. 3, when incoming video signal is a digital video signal, as computer, PDA, CPU, during digital video signals such as DSP, and outputting video signal is an analog video signal, during as television set, central processor unit is imported data (data in) interface with digital video signal through video and is deposited signal in video data integer buffer unit, in the cooperation, external clock and control circuit are implemented the real-time Simulation conversion of digital video signal, wherein during the internal clocking mode of operation, D/A converting circuit (DA) signal is finished conversion according to the internal clocking synchronizing signal; During the external clock mode of operation, the DA change-over circuit is finished conversion according to outside input clock synchronizing signal, and the DA converting unit is built-in with integer, pre-process circuit simultaneously, the analog video signal after digital-to-analogue (DA) conversion can be adjusted to normal range (NR).
3) work as input, outputting video signal is analog video signal, as input, when outputting video signal is the vision signal of simulation demonstration standards such as PAL/NTSC/SECAM/S-video/RGB, the composite video codec is isolated the rgb signal of incoming video signal and is sent into the rgb video signal unit, the directly rgb signal of input also can be accepted in the rgb video signal unit, after being converted to, AD converting unit AD send CPU again, after CPU is finished processing with signal according to the standard that will change, after DA converting unit DA conversion, deliver to the composite video codec again, the composite video codec can be the vision signal standard of respective standard according to the signal standards composite coding of variant standard with the vision signal of rgb video signal unit output, realizes the conversion of analog video signal between the different systems.For example, as pal signal scanning frequency per second 25 frames, TSC-system signal scanning frequency per second 30 frames, through composite video codec (decoding), rgb video signal unit, AD converting unit, CPU, DA converting unit, rgb video signal unit, composite video codec (coding), realize the mutual conversion of different systems, transfer principle that this is concrete and structure are prior art, do not repeat them here.Certainly, rgb video signal also can directly directly be changed and be output as the rgb signal of TV of corresponding standard or the rgb signal of computer XGA signal in the rgb video signal unit.
4) when the input, when outputting video signal is digital video signal, as incoming video signal is the vision signal of 16:9 video signal format, outputting video signal is the vision signal of 4:3 video signal format, then according to corresponding video increase and decrease convergent-divergent criterion, CPU is sent into the displaying contents of incoming video signal in the display buffer district of the corresponding reflection of outputting video signal.When digital videos such as input, outputting video signal such as VCD, DVD, SVCD or MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, Avi and video communication standard, then send into respective regions after can directly finishing conversion by CPU according to variant video signal standard, agreement.
5) when incoming video signal be R, G, the B signal of analog TV, outputting video signal is LCD TV or plasma electric apparent time, the R of incoming video signal, G, B signal, through directly sending into video output integer buffer unit after the conversion of AD converting unit, this integer buffer unit is capable according to the picture of TV,, the scanning rule directly drives liquid crystal display screen or plasm TV etc. with the corresponding video signals data, thereby realize at lower cost, less change realizes simulated television is converted to Digital Television such as liquid crystal or plasma.
6) see also Fig. 4, when incoming video signal is the single-image TV signal, when being output as the TV signal of many pictures, as outputting video signal is analog video signal, directly send into video output integer buffer unit after then the rgb signal of single-image vision signal being changed through the AD converting unit, by video output data integer buffer unit vision signal is delivered to CPU again, it is synthetic that CPU is finished picture with each single-image digital video signal according to editting function, deposit the integer buffer memory in through video input data (datad in), deliver to the RGB output circuit or export through the composite video codec again through the DA converting unit; When outputting video signal is digital video signal (as LCD TV or a plasma electric apparent time), the integer buffer unit is capable according to television image,, the scanning rule directly drives this LCD TV and plasm TV display screen with corresponding data.Certainly, incoming video signal also can be digital video signal.
7) see also Fig. 5, when incoming video signal is the single-image vision signal, and outputting video signal is when being the video wall of many pictures, incoming video signal is if analog video signal, through compound codec, the rgb video signal unit, the AD converting unit, the integer buffer unit, video output (dataout) integer interface is delivered to CPU, CPU with digital video signal according to editting function order divided frame, to cut apart the back picture data and deposit each integer buffer unit in through each video input (data in) integer interface of video wall, (incoming video signal is if digital video signal, then directly will cut apart the back picture data and deposit each integer buffer unit in through each video of video wall input integer interface by CPU), deliver to the output of rgb video signal unit or export each television set or projecting apparatus to through the composite video codec again through the DA unit of walking around again; When outputting video signal is the Digital Television wall of many pictures, CPU will be cut apart the back picture data and deposit the integer buffer memory in through each video input integer interface of video wall, directly export each digital video television set or digital video projector again to.
8) the present invention synthesizes the output of single-image signal with multi-channel video signal after also the vision signal of multichannel input can being changed through the corresponding video converting unit, is about to the multi-channel video signal of input, changes through corresponding video converting unit; Central processing unit controls, editor, synthetic back realize that single-image shows the function of multi-channel video, as the telephotography watch-dog, outputs to multi-channel video signal respectively the analog and digital video equipment of single-image.
See also Fig. 6, the method for integral type video exchange of the present invention comprises the steps: 1) video signal format of identification incoming video signal and outputting video signal; 2) signal format according to input, outputting video signal switches to corresponding vision signal converting unit; 3) the vision signal converting unit is converted to the discernible signal format of outputting video signal with the signal format of incoming video signal.The step 3) of this method also can be used for one tunnel vision signal input process conversion back is realized the output of multi-channel video signal, also the vision signal input process conversion back of multichannel can be realized the output of single-image vision signal.
Claims (6)
1. integrated video-frequency siganl exchanging apparatus, it is characterized in that: it comprises the video inputs mouth, video-out port, CPU and video converting unit group, the video inputs mouth has M, video-out port has N, M, N is natural number and wherein one of at least more than or equal to 2, CPU is in order to directly to finish the conversion between the digital video signal and the operating state of video converting unit group is controlled, video converting unit group comprises M*N vision signal converting unit, make input, outputting video signal connects the video input respectively, behind the output port, CPU discerns and switches to corresponding video converting unit to vision signal, this video converting unit is the discernible video signal format of outputting video signal with the Data Format Transform of incoming video signal, video converting unit group comprises Analog-digital vision signal converting unit, this Analog-digital vision signal converting unit comprises the composite video codec unit, the rgb video signal unit, AD converting unit and video output integer buffer unit, the composite video codec unit will and be isolated R from the vision signal decoding of video inputs mouth input, G, the B vision signal, this R, G, the B signal is input to the rgb video signal unit, external sync mode in this rgb video signal unit is realized determining, synchronizing speed, clock, AD conversion accuracy and finish the input and output of rgb signal, the AD converting unit is to R, G, the B signal carries out analog-to-digital conversion, and vision signal integer buffer unit is to digital signal integer and buffer memory after changing.
2. integrated video-frequency siganl exchanging apparatus as claimed in claim 1, it is characterized in that: described video converting unit group also comprises digital-analogue vision signal converting unit, and this digital-analogue vision signal converting unit comprises video input integer buffer unit, DA converting unit, the rgb video signal unit that connects in turn.
3. integrated video-frequency siganl exchanging apparatus as claimed in claim 1, it is characterized in that: described video converting unit group also comprises simulation-analog video signal converting unit, this simulation-analog video signal converting unit comprises the composite video codec unit, the rgb video signal unit, the AD converting unit, CPU and DA converting unit, the composite video codec unit is isolated the rgb signal of incoming video signal and is sent into the rgb video signal unit, after AD converting unit AD conversion, send CPU again, after CPU is finished processing with signal according to the standard that will change, after DA converting unit DA conversion, deliver to the rgb video signal unit again, the composite video codec unit is the vision signal standard of respective standard with the vision signal of rgb video signal unit output according to the signal standards composite coding of variant standard, realizes the conversion of analog video signal between the different systems.
4. integrated video-frequency siganl exchanging apparatus as claimed in claim 1, it is characterized in that: described video converting unit group also comprises single-image-many picture video signals converting unit, this vision signal converting unit comprises AD converting unit and video output integer buffer unit, after changing through the AD converting unit, the rgb signal of single-image vision signal directly sends into video output integer buffer unit, by video output data integer buffer unit vision signal is delivered to CPU again, it is synthetic that CPU is finished picture with each single-image digital video signal according to editting function.
5. as any described integrated video-frequency siganl exchanging apparatus among the claim 1-4, it is characterized in that: described digital video signal input port is selected from: VCD, DVD, SVCD, MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, Avi video signal port and meet the digital video signal port of video communication standard, the analog video signal input port is selected from: video video signal port, S-video video signal port and rgb video signal port.
6. integrated video-frequency siganl exchanging apparatus as claimed in claim 5, it is characterized in that: described digital video signal output port is selected from: VCD, DVD, SVCD, MPEG1, MPEG2, MPEG4, JPG, CIF, GIF, Avi digital video signal port, and the digital video signal port, Digital Television display driver port, computer that meet the video communication standard with CRT display driver port and computer with LCD display driver port; The analog video signal output port is selected from: video video signal port, S-video video signal port and rgb video signal port.
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| CNB2005100203613A CN100464567C (en) | 2005-02-04 | 2005-02-04 | Integrated video-frequency siganl exchanging apparatus and method |
| PCT/CN2006/000047 WO2006081732A1 (en) | 2005-02-04 | 2006-01-12 | Integrative video signal switching device and method thereof |
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| CNB2005100203613A CN100464567C (en) | 2005-02-04 | 2005-02-04 | Integrated video-frequency siganl exchanging apparatus and method |
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| CN1816102A CN1816102A (en) | 2006-08-09 |
| CN100464567C true CN100464567C (en) | 2009-02-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8035628B2 (en) | 2006-10-04 | 2011-10-11 | Mediatek Inc. | Portable multimedia playback apparatus |
| CN101572826B (en) * | 2008-04-29 | 2011-07-13 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic video display device and method |
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- 2005-02-04 CN CNB2005100203613A patent/CN100464567C/en not_active Ceased
-
2006
- 2006-01-12 WO PCT/CN2006/000047 patent/WO2006081732A1/en not_active Application Discontinuation
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2006081732A1 (en) | 2006-08-10 |
| CN1816102A (en) | 2006-08-09 |
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