CN2849900Y - DVD-RW burning machine - Google Patents
DVD-RW burning machine Download PDFInfo
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- CN2849900Y CN2849900Y CN 200520064937 CN200520064937U CN2849900Y CN 2849900 Y CN2849900 Y CN 2849900Y CN 200520064937 CN200520064937 CN 200520064937 CN 200520064937 U CN200520064937 U CN 200520064937U CN 2849900 Y CN2849900 Y CN 2849900Y
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- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000005236 sound signal Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 230000007175 bidirectional communication Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a DVD-RW burner. In order to solve the problems that the existing DVD-RW burner can not directly cut and record unpacked high-visibility image signals and multi-channel audio composite signals, on the basis of the original DVD-RW burner, the DVD-RW burner is additionally provided with an HDMI input interface circuit (1-5) in an interface circuit for receiving input signals and is additionally provided with an HDMI output interface circuit (5-2) for transmitting output signals in an output interface circuit. After the HDMI interface circuit is used, the audio signals and the video signals, which have various audio formats without compression, can be transferred, and loss which is relative to a simulating interface and unnecessary digifax transformation can not be brought. Accordingly, the high-visibility video data and multi-channel audio data can be directly cut and recorded. Because of the integrated video and the multi-channel audio in single cables, the cost, the complexity and the confusion of the multiple cables which are used in the existing A/V system are eliminated, and the bidirectional communication between a video source (such as DVD+RW) and a DTV is supported.
Description
Technical field
The utility model relates to a kind of DVD-RW CD writer, the DVD-RW CD writer of especially a kind of band HDMI (High-definition Digital Multimedia Interface, High-definition Digital Multimedia Interface) interface circuit.
Background technology
Be directed to the record sound signal that the imprinting of DVD-RW CD writer goes out and the videodisc of vision signal, the height of the picture signal sharpness that videodisc is entrained has become one of main standard of evaluation CD writer performance quality, and the height of picture signal sharpness depends on vision signal and the reception processing of sound signal and the method that transforms to input, and interface is as to the primary capturing element of input signal, and the picture signal that the quality of its performance is obtained higher resolution for CD writer has very important effect.
At present, the interface that is applied on the DVD-RW CD writer mainly contains USB, IEEE-1394 and DVI (Digital Visual Interface, digital visual interface) interface.IEEE-1394 has obtained success on digital code camera, but because the restriction of transmission bandwidth and compression digital image that only can the transmission standard sharpness, has simultaneously too complicated circuit structure again, though also have the advantage of transmitted in both directions, also can't take cities and seize territory in high-resolution real-time Transmission vision signal field; Though USB is widely used, limited bandwidth makes USB interface can only transmit the high-resolution still image of some low data rates or the dynamic image of low resolution; The DVI interface be present main flow be used for transmission no compression high definition clear real time digital image, and DVI supports to surpass the UXGA of 1600x1200@85HZ or QXGA image and the 720P of 2048X1536@75HZ, 1080I, the nothing compression real-time Transmission of the HD digital TV signal of 1080P, but the DVI interface can only transmit the digital rgb signal that is applicable to the PC field, and do not support digital difference signal YCBCr, only support the digital rgb transmission of 8 (24/3), do not support to have 12 position digital signals of more details, can't the transmission of digital audio frequency, and because its interface too " greatly ", be not suitable for being contained on the portable equipment, if digital transmission, for the analog interface part that the analog machine of compatible " old " is reserved unnecessary fully, and three kinds of above-mentioned interfaces, in the former analog transmission, simulation each time--numeral, numeral--〉conversion of simulation all will cause the decline of signal quality.The synchronizing signal of bringing in transfer process and transmission course simultaneously and " wow and flutter " of the time response between the vision signal (Jitter) are very difficult to solve, thereby cause the trickle shake of image and the variation issue of sound to be difficult to solve, and making up traditional home entertainment system needs 13 mimic transmission lines the most for a long time, and the problem that the behind line is entangled with is in a jumble perplexing the consumer always.
The utility model content
The technical problems to be solved in the utility model provides a kind of improved DVD-RW CD writer, makes it adopt the HDMI interface circuit, only needs a cable can receive or transmit no compressed high definition digital video and multichannel digital audio signal.
For solving the problems of the technologies described above, a kind of improved DVD-RW CD writer of the present utility model comprises sound, the image signal input interface circuit, the sound of drawing by the audio-video signal input interface circuit, vision signal is connected to video encoder and audio coder respectively, be used to read CD and the DVD-RW CD drive of imprinting CDs, master controller CPU, MPEG-2DVD coding decoder and storing control program and intermediate store that the audio/video output port circuit connects, each parts is connected by the corresponding port of data bus with master controller (CPU), wherein, set up a HDMI input interface circuit in input interface circuit, the signal output part of this circuit is connected with the corresponding input port of video encoder and audio coder respectively.This HDMI input interface circuit comprises video grabber, the audio capture device, RGB to YUV color space converter, the HDCP cipher code generator, T.M.D.S scrambler and receiver, the signal output part of described T.M.D.S scrambler links to each other with the signal input part of HDCP cipher code generator and the signal input part of audio capture device simultaneously, the signal output part of HDCP cipher code generator links to each other with the signal input part of receiver, the signal output part of receiver links to each other with the signal input part of RGB to YUV color space converter, the signal output part of RGB to YUV color space converter links to each other with the signal input part of video grabber with the audio capture device simultaneously, and the output terminal of the output terminal of video grabber and audio capture device links to each other with the signal input part of video encoder and the signal input part of audio coder respectively.
In this improved DVD-RW CD writer, in output port circuit, also can comprise a HDMI output interface circuit that is used for transmission output signal, this HDMI output interface circuit comprises video grabber, the audio capture device, RGB to YUV color space converter, the HDCP cipher code generator, T.M.D.S scrambler and receiver, the signal input part of video grabber and audio capture device links to each other with the signal output part of described MPEG-2DVD coding decoder, output terminal links to each other with RGB to YUV color space converter signal input part simultaneously, and the signal output part of audio capture device also links to each other with the signal input part of T.M.D.S scrambler, the signal output part of RGB to YUV color space converter links to each other with the signal input part of receiver, the signal output part of receiver links to each other with the signal input part of HDCP cipher code generator, and the signal output part of HDCP cipher code generator links to each other with the signal input part of T.M.D.S scrambler.
In the DVD-RW CD writer of the present utility model, owing to set up and used the HDMI interface circuit, can transmit the sound signal and the vision signal of the multiple audio format that does not have compression, to obtain the image quality of higher resolution, and guarantee that digital video shows, can not bring and analog interface and unnecessary digital-to-analogue to transform relevant loss, so directly imprinting high sharpness video and multichannel audio data; Because integrated video and multichannel audio in the single line cable, thereby eliminate cost, complicacy and the confusion of the multi-thread cable that uses in the current A/V system, and supported the two-way communication between video source (as DVD+RW) and DTV, realized new function.
Description of drawings
Below in conjunction with accompanying drawing and concrete embodiment the utility model is described further:
Fig. 1 is the theory diagram that the utility model has the DVD-RW CD writer of HDMI interface circuit;
Fig. 2 is the processing block diagram of the utility model HDMI input interface circuit;
Fig. 3 is the processing block diagram of the utility model HDMI output interface circuit;
Fig. 4 is the imprinting pattern block diagram of the DVD-RW of the utility model band HDMI interface circuit.
Among the figure, 1 is sound, image signal input interface circuit; 1-1 is the RF conversion circuit; 1-2 is a Video Decoder; 1-3 is an audio A C conversion circuit; 1-4 is an IEEE1394 signal conversion circuit; 1-5 is the HDMI input interface circuit; 2 is video encoder; 3 is audio coder; 4 is the DVD-RW CD drive; 5 is the audio/video output port circuit; 5-1 is an audio frequency DAC conversion circuit; 5-2 is the HDMI output interface circuit; 6 is the MPEG-2DVD coding decoder; 7,8,9 is storing control program and intermediate store; 10 is master controller CPU.
Embodiment
Have by the utility model shown in Figure 1 the HDMI interface circuit the DVD-RW CD writer theory diagram as can be known, comprise sound in this improved DVD-RW CD writer structure, image signal input interface circuit 1, the sound of drawing by audio-video signal input interface circuit 1, vision signal is connected to video encoder 2 and audio coder 3 respectively, be used to read CD and the DVD-RW CD drive 4 of imprinting CDs, master controller CPU10, MPEG-2DVD coding decoder 6 and storing control program and intermediate store that audio/video output port circuit 5 connects, each parts is connected by the corresponding port of data bus with master controller CPU10, wherein, sound, image signal input interface circuit 1 comprises the IEEE1394 signal conversion circuit 1-4 that handles conversion to the IEEE1394 input signal, the RF conversion circuit 1-1 that the processing of RF input signal is transformed, video input signals (Video) is handled the Video Decoder 1-2 of conversion and the audio A C conversion circuit 1-3 that audio input signal (Audio) is handled, the signal output part of RF conversion circuit 1-1 links to each other with the signal input part of audio A C conversion circuit 1-3 with Video Decoder 1-2 respectively, the conversion circuit 1-4 that handles conversion to the IEEE1394 input signal directly links to each other with the signal input part of master controller CPU10, wherein, in input interface circuit 1, set up a HDMI input interface circuit 1-5, the signal output part of this circuit 1-5 is connected with the corresponding input port of video encoder 2 and audio coder 3 respectively, in addition, audio/video output port circuit 5 includes an audio frequency DAC conversion circuit 5-1, also can include a HDMI output interface circuit 5-2 who is used for transmission output signal.
By the processing block diagram of the utility model HDMI input interface circuit shown in Figure 2 as can be known, this HDMI input interface circuit bag 1-5 draws together video grabber, the audio capture device, RGB to YUV color space converter, the HDCP cipher code generator, T.M.D.S scrambler and receiver, the signal output part of T.M.D.S scrambler links to each other with the signal input part of HDCP cipher code generator and the signal input part of audio capture device simultaneously, the signal output part of HDCP cipher code generator links to each other with the signal input part of receiver, the signal output part of receiver links to each other with the signal input part of RGB to YUV color space converter, the signal output part of RGB to YUV color space converter links to each other with the signal input part of video grabber with the audio capture device simultaneously, and the output terminal of the output terminal of video grabber and audio capture device links to each other with the signal input part of video encoder and the signal input part of audio coder respectively.
By the processing block diagram of the utility model HDMI output interface circuit shown in Figure 3 as can be known, this output interface circuit 5-2 comprises video grabber, the audio capture device, RGB to YUV color space converter, the HDCP cipher code generator, T.M.D.S scrambler and receiver, the signal input part of described video grabber and audio capture device links to each other with the audio/video output interface, output terminal links to each other with RGB to YUV color space converter signal input part simultaneously, and the signal output part of audio capture device also links to each other with the signal input part of T.M.D.S scrambler, the signal output part of RGB to YUV color space converter links to each other with the signal input part of receiver, the signal output part of receiver links to each other with the signal input part of HDCP cipher code generator, and the signal output part of HDCP cipher code generator links to each other with the signal input part of T.M.D.S scrambler.
Extremely as can be known shown in Figure 4 by Fig. 1, when using the DVD-RW CD writer, high-resolution signal TXO by set-top box (SET-TOP-BOX) or DVD player output, TX1, TX2, after TXC encodes through the T.M.D.S scrambler, sending the HDCP cipher code generator to is decrypted, output signal after the deciphering sends RGB to YUV color space converter to after receiving by receiver, RGB to the YUV color space converter signal decomposition that this is synthetic is image and voice signal, and send corresponding signal to video grabber and audio capture device, and send signal to master controller CPU10 through video encoder 2 and audio coder 3 respectively, thereby carry out imprinting by 4 pairs of signals of DVD-RW CD drive by video grabber and audio capture device; When reading by 4 pairs of data of optical disk of DVD-RW CD drive, after the data of optical disk signal that reads sends MPEG-2DVD coding decoder 6 to and carries out coding and decoding through master controller CPU10, the audio capture device and the video grabber that send the sound signal and the vision signal of MPEG-2DVD coding decoder 6 output to HDMI interface circuit 5-2, signal after handling through audio capture device and video grabber through RGB to YUV color space converter conversion and synthesize can and send receiver at signal form that receiver is accepted after, after encrypting through the HDCP cipher code generator, the signal by T.M.D.S encoder encodes output HDMI form also sends the LCD that has the HDMI input interface to and shows.
Claims (4)
1, a kind of DVD-RW CD writer, it comprises sound, image signal input interface circuit (1), the sound of drawing by audio-video signal input interface circuit (1), vision signal is connected to video encoder (2) and audio coder (3) respectively, be used to read CD and the DVD-RW CD drive (4) of imprinting CDs, master controller CPU (10), MPEG-2DVD coding decoder (6) and storing control program and intermediate store (7 that audio/video output port circuit (5) connects, 8,9), each parts is connected by the corresponding port of data bus with master controller (CPU) (10), it is characterized in that: set up a HDMI input interface circuit (1-5) in the input interface circuit (1), the signal output part of this circuit (1-5) is connected with the corresponding input port of video encoder (2) with audio coder (3) respectively.
2, a kind of DVD-RW CD writer according to claim 1, it is characterized in that also comprising in output port circuit (5) a HDMI output interface circuit (5-2) that is used for transmission output signal, the IC interface of described HDMI output interface circuit (5-2) links to each other with the signal output part of described MPEG-2DVD coding decoder (6).
3, a kind of DVD-RW CD writer according to claim 1, it is characterized in that: described HDMI input interface circuit (1-5) comprises video grabber, the audio capture device, RGB to YUV color space converter, the HDCP cipher code generator, T.M.D.S scrambler and receiver, the signal output part of described T.M.D.S scrambler links to each other with the signal input part of HDCP cipher code generator and the signal input part of audio capture device simultaneously, the signal output part of HDCP cipher code generator links to each other with the signal input part of receiver, the signal output part of receiver links to each other with the signal input part of RGB to YUV color space converter, the signal output part while and the video of RGB to YUV color space converter
Catcher links to each other with the signal input part of audio capture device, and the output terminal of the output terminal of video grabber and audio capture device links to each other with the signal input part of video encoder and the signal input part of audio coder respectively.
4, a kind of DVD-RW CD writer according to claim 2, it is characterized in that: described HDMI output interface circuit (5-2) comprises video grabber, the audio capture device, RGB to YUV color space converter, the HDCP cipher code generator, T.M.D.S scrambler and receiver, the signal input part of described video grabber and audio capture device links to each other with the audio/video output interface, output terminal links to each other with RGB to YUV color space converter signal input part simultaneously, and the signal output part of audio capture device also links to each other with the signal input part of T.M.D.S scrambler, the signal output part of RGB to YUV color space converter links to each other with the signal input part of receiver, the signal output part of receiver links to each other with the signal input part of HDCP cipher code generator, and the signal output part of HDCP cipher code generator links to each other with the signal input part of T.M.D.S scrambler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064937 CN2849900Y (en) | 2005-09-21 | 2005-09-21 | DVD-RW burning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064937 CN2849900Y (en) | 2005-09-21 | 2005-09-21 | DVD-RW burning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849900Y true CN2849900Y (en) | 2006-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520064937 Expired - Fee Related CN2849900Y (en) | 2005-09-21 | 2005-09-21 | DVD-RW burning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849900Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088586A (en) * | 2009-12-03 | 2011-06-08 | 索尼公司 | Control device, control method, and program |
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2005
- 2005-09-21 CN CN 200520064937 patent/CN2849900Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088586A (en) * | 2009-12-03 | 2011-06-08 | 索尼公司 | Control device, control method, and program |
| CN102088586B (en) * | 2009-12-03 | 2014-07-02 | 索尼公司 | Control device, control method, and program |
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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: 20061220 Termination date: 20110921 |