CN1581955A - External socket detecting device for optical disc unit - Google Patents
External socket detecting device for optical disc unit Download PDFInfo
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- CN1581955A CN1581955A CN 03141947 CN03141947A CN1581955A CN 1581955 A CN1581955 A CN 1581955A CN 03141947 CN03141947 CN 03141947 CN 03141947 A CN03141947 A CN 03141947A CN 1581955 A CN1581955 A CN 1581955A
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- signal
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- optical disc
- external
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Abstract
The disclosed device includes following parts: jack connection detector set detects whether first external jack connection of connecting external display and the second external jack connection are already connected; signal processing device for processing signals suitable for transferring to the said first external jack connection and second external jack connection; based on jack types detected by the said detector, control device controls the said signal processing device to carry out corresponding signal process. The invention is capable of detecting whether signal connected to jack connections for optical device or external display is component signal or video signal. Thus, corresponding video signal processes can be carried out for jack connections.
Description
(1) technical field
The invention relates to the external socket checkout gear of optical disc apparatus, promptly detect the kind that the outside that connects external display connects jack automatically, and in view of the above the record data of CD are carried out corresponding signal process.
(2) background technology
General, optical disc apparatus is as reading DVD (Digital Versatile Disc: data general-purpose CD), high density data general-purpose CD) HD-DVD (High Density Digital Versatile Disc: a kind of device of CD identifying recording layer such as, along with the compression of video and voice data, the development of transmission technology, its performance has also obtained tremendous development.
Fig. 1 is the optical disc apparatus pie graph that has possessed the device that can detect the jack that connects general external display.This device comprises: mpeg decoder 12, the data processing that to supply with from data source is video (SUPER) signal of Y (brightness) signal and C (colourity) signal form, perhaps is treated to component (component) signal of Y (brightness) signal, Pb signal and Pr signal form; Selector switch 13 is selected the signal aspect by mpeg decoder 12 signal processing; Microprocessor 11 is carried out the property controls totally such as control to mpeg decoder 12 signal processing.
Have in the middle of the general optical disc apparatus of above-mentioned formation, the data of supplying with from data source are through after the signal processing of mpeg decoder 12, export to external display 14 through selector switch 13.Above-mentioned mpeg decoder 12 is an example with the vision signal under the control of microprocessor 11, and vision signal is carried out signal processing, is treated to component signal or vision signal, to external display 14 outputs.
In addition,, have to utilize above-mentioned selector switch 13, manually select by the user because which output plughole optical disc apparatus can not detect and display is connected together.Microprocessor detects above-mentioned selector switch 13 be installed to that output plughole after, control above-mentioned mpeg decoder 12 and carry out signal processing.Like this, the vision signal through signal processing will realize normal vision signal output when it is corresponding with the connection jack kind that connects external display 14.That is, if the signal aspect of process mpeg decoder 12 signal processing is a component signal, connecting jack just should be the component jack; If the signal aspect through mpeg decoder 12 signal processing is a vision signal, connecting jack just should be video jacks, outputting video signal so normally.
But, aforementioned general optical disc apparatus is only when the form of the vision signal of passing through mpeg decoder 12 signal processing is consistent with the jack kind that connects external display, can realize normal vision signal output, so when being connected with external display at every turn, all to connect video signal corresponding therewith and selector switch 13 is set in order to export, perhaps, to confirm whether correctly to have selected selector switch 13 for the output state that makes signal after mpeg decoder 12 is handled and vision signal is corresponding, so just exist the problem of the special trouble that operates.
In addition, if the user is not familiar with the function of selector switch 13, such as, the selection mode of selector switch 13 is a video output states, mpeg decoder also is treated to vision signal the vision signal state thereupon, if but the jack that is connected with external display is the component jack, just there is the problem that normally to appreciate program.
(3) summary of the invention
Therefore, the present invention just is being based on to address the above problem and is carrying out.Purpose of the present invention is exactly will provide a kind of can detect the connection status that the outside that connects optical disc apparatus and external display is connected jack automatically, then the recording data signal of CD is treated to the corresponding pattern of connection status that is connected jack with the outside line output of going forward side by side.
For achieving the above object and the present invention who carries out is characterized in that comprising with lower device:
Jack joint detection device, whether the first outside connection jack of check connection external display is connected jack with second outside and connects; Signal processing apparatus is to the above-mentioned first outside signal of jack conveying or the signal of carrying to the second outside connection jack of connecting with signal processing; Control device, according to the detected outside jack type that connects of above-mentioned jack joint detection device, the control said signal processing device is carried out corresponding signal process.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the optical disc apparatus pie graph that has possessed the device that can detect the jack that connects general external display.
Fig. 2 is the optical disc apparatus pie graph that has possessed external socket checkout gear of the present invention.
Fig. 3 is another example structure figure of the external socket jockey of optical disc apparatus of the present invention.
(5) embodiment
Fig. 2 is the optical disc apparatus pie graph that has possessed external socket checkout gear of the present invention.Optical disc apparatus of the present invention as shown in the figure comprises: mpeg decoder 22, the data processing that to supply with from data source is the vision signal of Y (brightness) signal and C (colourity) signal form, perhaps is treated to the component signal of Y (brightness) signal, Pb signal and Pr signal form; Microprocessor 21 is carried out the property controls totally such as signal processing such as control mpeg decoder 12; Sync amplitude test section 23,24 detects the amplitude variations of the synchronizing signal that comprises in the Y-signal of above-mentioned component signal; And comprise each buffer that is used to guarantee be not subjected to other effect of signals from each signal of mpeg decoder output.
Above-mentioned sync amplitude test section the 23, the 24th, the sync amplitude of the Y-signal that comprises jointly in the vision signal of utilization output from mpeg decoder 22 and the component signal detects, because output is that vision signal or component signal all include a kind of common signal from mpeg decoder 22, that is exactly above-mentioned Y-signal.
Therefore, detecting each, to connect the method whether jack connect be continuously to monitor the amplitude variations that detects the synchronizing signal that comprises in each Y-signal.If this is because display has connected jack, also can change because connect the amplitude of impedance (IMPEDANCE) variable signal of jack so.
That is, such as when optical disc apparatus is connected with external display by video jacks, the amplitude that changes vision signal along with the IMPIDENCE that connects jack also can change.At this moment sync amplitude test section 23 will detect the variation of the sync amplitude that comprises in the Y-signal.
As above-mentioned principle, change such as the amplitude of the component signal of optical disc apparatus, another one sync amplitude checkout gear 24 can detect the amplitude variations that comprises synchronizing signal in the Y-signal therein.
Will be if above-mentioned each sync amplitude test section 23,24 detects sync amplitude to the detection signal of microprocessor 21 output respective settings.Microprocessor 21 receives this detection signal, judges that according to the detection signal of sync amplitude test section 23 outputs optical disc apparatus and which kind of jack are connected together.Judge that promptly optical disc apparatus is to be connected with video jacks or to be connected together with the component jack.Such as, if the certain detection signal that receives is transported by sync amplitude test section 23, so just judge it is to be connected together with video jacks; If the certain detection signal that receives is transported by sync amplitude test section 24, so just judge it is to be connected together with the component jack.
If any one output detection signal is to microprocessor 21 from above-mentioned sync amplitude test section 23,24, microprocessor 21 will be according to relevant detection signal controlling mpeg decoder 22.Such as if carry detection signal to microprocessor 21 from above-mentioned sync amplitude test section 23, the signal processing that microprocessor 21 will be regulated and control mpeg decoder provides data source is a vision signal.If carry detection signal to microprocessor 21 from above-mentioned sync amplitude test section 24, the signal processing that microprocessor 21 will be regulated and control mpeg decoder provides data source is a component signal.
Above-mentioned mpeg decoder 22 is under the control of microprocessor 21, and the signal processing that data source is provided is vision signal or Y-signal, Pb signal and Pr signal halves amount signals such as Y-signal and C signal.If what send from microprocessor 21 is the order of carrying out the signal processing of vision signal, the signal processing that data source will be provided is a vision signal so; If what send from microprocessor 21 is the order of carrying out the signal processing of component signal, the signal processing that data source will be provided is a component signal so.
The external socket jockey of foregoing optical disc apparatus of the present invention can judge automatically that the user connects the type of the external socket of optical disc apparatus, and carries out and the corresponding data-signal processing mode of this external socket.
In addition, Fig. 3 is another example structure figure of the external socket checkout gear of optical disc apparatus of the present invention.It is irrelevant that No. 3 PIN (stitch) and actual signal transmit and install (SET) operation in the said external jack detection, corresponding with it is No. 7 PIN in the playing device, utilization is connected to ground with these No. 3 PIN and No. 7 PIN, open No. 3 PIN of optical disc apparatus, when No. 3 PIN are connected with the external played device, be joining with No. 7 PIN, and ground connection.
Therefore, the connection jack of external display, its No. 3 PIN are set to ground connection, so actual device (SET) operation is with identical in the past, by open mode and the ground state of checking No. 3 PIN, detect optical disc apparatus and whether be connected with external display by connecting jack.That is, can connect ground and detect automatically that external display with which jack is connected by No. 3 PIN that judge which jack.
In addition, in the middle of above-mentioned first embodiment and second embodiment, when judging that more than one jack is connected with the external played device, will carry signal or also can allow the user select to external display by the jack of setting.
The external socket checkout gear of the optical disc apparatus of the present invention that has said structure and as above operate has very high practical value.It can detect the jack that is connected that is used to connect optical disc apparatus and external display automatically is component signal or vision signal, handles thereby can carry out corresponding video signals according to the type of this jack.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (3)
1. the external socket checkout gear of an optical disc apparatus is characterized in that comprising with lower device:
Jack joint detection device, whether the first outside connection jack of check connection external display is connected jack with second outside and connects;
Signal processing apparatus is to the above-mentioned first outside signal of jack conveying or the signal of carrying to the second outside connection jack of connecting with signal processing;
Control device, according to the detected outside jack type that connects of above-mentioned jack joint detection device, the control said signal processing device is carried out corresponding signal process.
2. the external socket checkout gear of optical disc apparatus as claimed in claim 1, it is characterized in that: above-mentioned jack joint detection device is optical disc apparatus is connected jack and connects with said external after, carries the amplitude variations of signal to detect the type of corresponding jack according to said signal processing device.
3. the external socket checkout gear of optical disc apparatus as claimed in claim 1 is characterized in that: the signal of said signal processing device output is the synchronizing signal that comprises in the luminance signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03141947XA CN100345445C (en) | 2003-07-30 | 2003-07-30 | External socket detecting device for optical disc unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03141947XA CN100345445C (en) | 2003-07-30 | 2003-07-30 | External socket detecting device for optical disc unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1581955A true CN1581955A (en) | 2005-02-16 |
| CN100345445C CN100345445C (en) | 2007-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03141947XA Expired - Fee Related CN100345445C (en) | 2003-07-30 | 2003-07-30 | External socket detecting device for optical disc unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100345445C (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3970595A (en) * | 1994-10-27 | 1996-05-23 | Gemstar Development Corporation | Apparatus and methods for downloading recorder programming data in a video signal |
| JPH10145784A (en) * | 1996-09-10 | 1998-05-29 | Sony Corp | Data decoding system, data decoding method, transmitting method, transmitter, receiver and receiving method |
| CN1326403C (en) * | 2002-04-04 | 2007-07-11 | 汤姆森特许公司 | Video apparatus |
-
2003
- 2003-07-30 CN CNB03141947XA patent/CN100345445C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN100345445C (en) | 2007-10-24 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 |