CN1641369A - Video-audio plug detecting device and method - Google Patents
Video-audio plug detecting device and method Download PDFInfo
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- CN1641369A CN1641369A CN 200410001620 CN200410001620A CN1641369A CN 1641369 A CN1641369 A CN 1641369A CN 200410001620 CN200410001620 CN 200410001620 CN 200410001620 A CN200410001620 A CN 200410001620A CN 1641369 A CN1641369 A CN 1641369A
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Abstract
The invention is a video-audio plug detecting device and method, used in a video-audio device. The video-audio device is used to output multiple video-audio signals. The video-audio plug includes multiple contact segments. The detecting device includes the components as follows: a socket to hold the video-audio plug; a segment number detector to detect the number of contact segments of the video- audio plug; a controller to determine multiple possible output arrangements according to the number of these contact segments; a display circuit to display these possible output arrangements on the video- audio device in a single mode and a user can use menu to select one of the possible output arrangements as an acting output arrangement.
Description
Technical field
The invention relates to a kind of plug pick-up unit and method thereof, and particularly relevant for a kind of video-audio plug pick-up unit and method thereof.
Background technology
Along with making rapid progress of science and technology, AV device miscellaneous also with develop, to meet in consumer's amusement or the demand in the work.AV device for example is DVD player, VCD player, digital camera, digital camera camera, CD player or MP3 player or the like.
With digital camera, it is to have audio-visual accessory power outlet, with image output and sound.After a video-audio plug that couples with TV was inserted the socket of digital camera, photo or film stored in the digital camera just can broadcast on external TV, watch to make things convenient for the user.
With the CD player, its cording has the message accessory power outlet, for example is the message of L channel and R channel with output.External loudspeaker or earphone are by the socket in a message plug and the CD player couples the back message to be broadcasted.The output specification of the employed socket of various AV devices is different.
Figure 1A and Figure 1B are the synoptic diagram of video-audio plug.Figure 1A is 3 segmentation plug synoptic diagram.3 segmentation plugs 10 comprise the contact segment 11 that is positioned at plug head and 13 and be positioned at the contact segment 15 of plug rear end, are to separate with insulating segment 12 and 14 between each contact segment.With the CD player is example, and the plug of its configuration is generally 3 segmentations, and contact segment receives L channel, R channel and ground connection respectively.With the digital camera is example, if the plug of its configuration 3 segmentations, then its contact segment may receive monophony, image signal and ground connection respectively.
Figure 1B is 4 segmentation plug synoptic diagram.4 segmentation plugs 20 comprise the contact segment 21 that is positioned at plug head and 23 and be positioned at the contact segment 25 and 27 of plug rear end, are to separate with insulating segment 22,24 and 26 between each contact segment.With the digital camera is example, if the plug of its configuration 4 segmentations, then its contact segment may receive L channel, R channel, image signal and ground connection respectively, or other different arrangement mode.
As above-mentioned the cited case, the plug hop count difference that various AV devices are required, and also the definition of each contact segment is also different, and therefore a kind of plug of AV device can't be used for other AV device.The AV device that had of individual is usually not only one now, and the plug of numerous kinds easily causes obscuring in the use, if lose the plug that also is not easy to have bought same size.
Summary of the invention
In view of this, purpose of the present invention is exactly in pick-up unit that a kind of video-audio plug is provided and method thereof, in order to the hop count of detection tabs and voluntarily the definition signal that exports plug to arrange.
According to purpose of the present invention, a kind of video-audio plug pick-up unit is proposed, be used for an AV device.AV device is in order to export a plurality of audio-visual signals.Video-audio plug comprises a plurality of contact segments.Pick-up unit comprises following assembly.Socket is in order to ccontaining video-audio plug; The hop count detecting device is in order to the number of the contact segment that detects video-audio plug; Controller may be exported arrangement according to the number decision of these contact segments is a plurality of; Display circuit may be exported arrangement a bit with this and be shown on the AV device with a menu mode, and the user can select one as effect output arrangement from exporting by menu in the arrangement.
According to another object of the present invention, a kind of video-audio plug detection method is proposed, be used for an AV device.Whether detection method comprises: at first, detect video-audio plug and insert; Then, judge the number of the contact segment of video-audio plug; Then, show that according to the number of contact segment a menu, menu comprise the multiple arrangement option of these a little audio-visual signals, from then on arrange by the user again and select one in the option for exporting arrangement; At last, export audio-visual signal to video-audio plug according to the output arrangement.
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.
Description of drawings
Figure 1A and Figure 1B are the synoptic diagram of video-audio plug.
Fig. 2 illustrates a kind of video-audio plug pick-up unit synoptic diagram of b according to a preferred embodiment of the present invention.
Fig. 3 A is the menu of 4 segmentation plugs.
Fig. 3 B is the menu of 3 segmentation plugs.
Embodiment
Please refer to Fig. 2, it has illustrated a kind of video-audio plug pick-up unit synoptic diagram according to a preferred embodiment of the present invention.Video-audio plug pick-up unit 200 is used for AV device 201, and with the signal order of the hop count that detects a video-audio plug 30 (plug) and the contact segment that defines video-audio plug 30, video-audio plug 30 for example is 3 segmentation plugs 10 among Figure 1A or 4 segmentation plugs 20 among Figure 1B.AV device 201 for example is message and video signal in order to export audio-visual signal AV.Video-audio plug pick-up unit 200 comprises socket (jack) 210, plug detecting device 220, hop count detecting device 230, electric storage means 232, switch SW, controller 250 and multiplexer 240.
When video-audio plug 30 was inserted socket 210, video-audio plug 30 was that metal clips S1 is down supported, and made contact pin P separate with metal clips S1, and therefore the signal on the contact pin P at this time is a noble potential.Inserting detecting unit 230 is to electrically connect with contact pin P with stitch GPI01, judges according to the current potential of contact pin P whether video-audio plug 30 inserts socket 210.
After detecting video-audio plug 30 and inserting socket 210, promptly begin to detect the number of the contact segment of video-audio plug 30.Present embodiment is that to be 3 sections or 4 sections be that example is done explanation to detect video-audio plug 30.By the plug of Figure 1A and Figure 1B as can be known, the rear end of 3 segmentation plugs has a contact segment, and the rear end of 4 segmentation plugs has two contact segments, so former and later two positions of test plug rear end i.e. hop count of plug as can be known of short circuit whether.Switch SW is in order to control metal clips S3 and resistance R 1 or video-audio signal line OP3 electric connection, and switch SW is that metal clips S3 and resistance R 1 are electrically connected in original state.If video-audio plug 30 is 3 segmentation plugs 10, then metal clips S3 and the receptacle boxes S4 while electrically connects with the contact segment 15 of plug 10, and receptacle boxes S4 is connected to ground, so the current potential of metal clips S3 also is low.If video-audio plug 30 is 4 segmentation plugs 20, then metal clips S3 and receptacle boxes S4 electrically connect with contact segment 25 and 27 respectively, thus the current potential on the metal clips S3 be subjected to power Vcc and resistance R 1 so be height.Hop count detecting device 230 is to electrically connect with metal clips S3 with stitch GPIO2, therefore can judge the number of the contact segment of plug according to the level of GPIO2.
When the output voltage of electric storage means 232 was low level, switch SW was that metal clips S3 and resistance R 1 are electrically connected; When the output voltage of electric storage means 232 was high level, switch SW was that metal clips S3 and video-audio signal line OP3 are electrically connected.Electric storage means 232 is to electrically connect with contact pin P, and when plug was not inserted socket 210, contact pin P was an electronegative potential, so electric storage means 232 does not begin charging as yet.When plug was inserted socket 210, contact pin P was a noble potential, so electric storage means 232 begins charging.When the output voltage of electric storage means 232 was not enough to make switch SW to be switched as yet, hop count detecting device 230 was in order to carry out the action that detects hop count.When electric storage means 232 charges to when being enough to change-over switch SW, switch SW is about to audio-visual signal line OP3 and metal clips S3 electrically connects.Count and insert, get according to the value of resistance R 2, R3 and capacitor C 1 to the time system that switch SW is switched from plug.
The number of inserting socket 210 and its contact segment when plug has also detected and has finished, and the output that then begins to adjust video-audio signal is arranged.Controller 250 is hop counts of learning video-audio plug 30 from hop count detecting device 230, and display menu selects a kind of output to arrange for the user according to this then, and menu is shown in Fig. 3 A and Fig. 3 B.Fig. 3 A is the menu of 4 segmentation plugs, three kinds of output signals of L channel L, R channel R and image TV, and therefore having six kinds may export arrangement.Fig. 3 B is the menu of 3 segmentation plugs.Therefore 3 segmentation plugs can only be exported two kinds of signals, may be the signal of two sound channels or the signal of sound channel and image, have six kinds and may export arrangement.Controller 250 is exported a plurality of may output and is arranged to display circuit 252 according to the hop count of video-audio plug 30.Display circuit 252 may be exported the arrangement display menu a bit according to this, selects for the user.The user can look for the option that is fit to video-audio plug on hand and arrange as an effect output in menu, after selected, multiplexer 240 is promptly arranged the output signal AV of AV device 201 by signal wire OP1, OP2 and OP3 output with selected effect output according to this.
With AV device 201 is that digital camera is an example, and controller 250 employed display device can be the screens of digital camera, and the menu that it provided can be shown on the screen of digital camera, selects for the user.If use the device for image 210 of this pick-up unit itself not have screen to show, also can select with the mode of button or the like.
Present embodiment is to be that earth terminal is that example is done explanation with receptacle boxes S4, so can also utilize one of other metal clips S1～S3 as earth terminal, and the mode that itself and present embodiment proposed is similar, all can utilize spirit of the present invention to reach, and repeats no more in this.
The video-audio plug pick-up unit that the above embodiment of the present invention disclosed can make AV device be suitable for various video-audio plug, make things convenient for the user to utilize existing video-audio plug that the signal of AV device is broadcasted in external TV or loudspeaker on hand, use oneself plug specification of ordering of AV device institute and needn't be defined in.
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, under the situation that does not break away from spirit of the present invention, also can make the variation and the modification of various equivalences, therefore, as long as variation, the modification to the foregoing description all will drop in the scope of claims of the present invention in connotation scope of the present invention.
Claims (16)
1. a video-audio plug pick-up unit is used for an AV device, and this AV device is in order to export a plurality of audio-visual signals, and this video-audio plug comprises a plurality of contact segments, and this pick-up unit comprises:
One socket is in order to ccontaining this video-audio plug;
Whether one plug detecting device inserts this socket in order to detect this video-audio plug;
One hop count detecting device is in order to the number of these contact segments of detecting this video-audio plug;
One controller may be exported arrangement according to the number decision of these contact segments is a plurality of; And
One display circuit may be exported arrangement with these and be shown on this AV device with a menu mode, and a user can be by this menu, may export from these and select one in arrangement and arrange as an effect output.
2. pick-up unit as claimed in claim 1 is characterized in that this pick-up unit also comprises a multiplexer, arranges according to this effect output and exports these audio-visual signals to this video-audio plug via this socket.
3. pick-up unit as claimed in claim 2, it is characterized in that, this socket comprises first make contact, second contact point, the 3rd contact point and the 4th contact point, the 4th contact point is an earth terminal, wherein, when this video-audio plug is inserted this socket, the current potential of this first make contact is first level, when this video-audio plug is inserted this socket, the current potential of this first make contact thereby change into second level, and these contact segments of this video-audio plug are electric connections of out of the ordinary and this first, second, third and the 4th contact point.
4. pick-up unit as claimed in claim 3 is characterized in that, also comprises a switch that electrically connects with the 3rd contact point, and when this video-audio plug was not inserted this socket, this switch was with the 3rd contact point and a supply coupling.
5. pick-up unit as claimed in claim 4, it is characterized in that after this video-audio plug had been inserted this socket, this hop count detecting device checked whether the 3rd contact point is identical with the current potential of the 4th contact point, if then this video-audio plug is a syllogic, otherwise be four-part form.
6. pick-up unit as claimed in claim 4 is characterized in that, after this hop count detecting device detection of end, this open relation switches to the 3rd contact point with this multiplexer and couples.
7. pick-up unit as claimed in claim 6 is characterized in that, this switch is controlled by an electric storage means, and after this video-audio plug was inserted this socket, this electric storage means promptly began charging, and after the time, the voltage of this electric storage means raises and switches this switch.
8. a video-audio plug detection method is used for an AV device, and this AV device is in order to export a plurality of audio-visual signals, and this video-audio plug comprises a plurality of contact segments, and this detection method comprises:
Whether detect this video-audio plug inserts;
Judge the number of these contact segments of this video-audio plug;
Show that according to the number of these contact segments a menu, this menu comprise the multiple arrangement option of these audio-visual signals, arrange from these candidates by a user again that to select one the option be that an output is arranged; And
Export these audio-visual signals to this video-audio plug according to this output arrangement.
9. detection method as claimed in claim 8 is characterized in that, this judges that the step of plug hop count judges the whether short circuit of front and back position of the rear end of this video-audio plug, if then be syllogic, otherwise is four-part form.
10. pick-up unit, be used for an AV device, on exportable a plurality of audio-visual signal to the first video-audio plug of this AV device or second video-audio plug, this first video-audio plug comprises three contact segments, this second video-audio plug comprises four contact segments, and this pick-up unit comprises:
One socket, in order to ccontaining this first video-audio plug and this second video-audio plug the two one of;
One hop count detecting device is arranged in this socket, one of is connected the number of the contact segment of video-audio plug on this socket in order to detect;
One controller may be exported arrangement according to the number decision of this hop count detecting device detection gained contact segment is a plurality of; And
One display circuit may be exported arrangement with these and be shown on this AV device with a menu mode, and a user can be by this menu, may export from these and select one in arrangement and arrange as an effect output.
11. pick-up unit as claimed in claim 10 is characterized in that, this pick-up unit also comprises a multiplexer, arranges according to this effect output and exports these audio-visual signals to this video-audio plug on via this socket.
12. pick-up unit as claimed in claim 11, it is characterized in that, this socket comprises first make contact, second contact point, the 3rd contact point and the 4th contact point, the 4th contact point is an earth terminal, wherein, when this when video-audio plug is inserted this socket on, the current potential of this first make contact is first level, when this when video-audio plug is inserted this socket on, the current potential of this first make contact thereby change into second level, and, this on these contact segments of video-audio plug be out of the ordinary and an electric connection of this first, second, third and the 4th contact point
13. pick-up unit as claimed in claim 12, it is characterized in that in, also comprise a switch that electrically connects with the 3rd contact point, when this when video-audio plug is not inserted this socket on, this switch is with the 3rd contact point and a supply coupling.
14. pick-up unit as claimed in claim 13, it is characterized in that, when this after video-audio plug has been inserted this socket on, this hop count detecting device checks whether the 3rd contact point is identical with the current potential of the 4th contact point, if then this on video-audio plug be this first video-audio plug, otherwise be this second video-audio plug.
15. pick-up unit as claimed in claim 14, its spy is that after this hop count detecting device detection of end, this open relation switches to the 3rd contact point with this multiplexer and couples.
16. pick-up unit as claimed in claim 15 is characterized in that, this open relation is controlled by an electric storage means, when this after video-audio plug is inserted this socket on, this electric storage means promptly begins charging, after the time, the voltage of this electric storage means raises and switches this switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410001620 CN1641369A (en) | 2004-01-05 | 2004-01-05 | Video-audio plug detecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410001620 CN1641369A (en) | 2004-01-05 | 2004-01-05 | Video-audio plug detecting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1641369A true CN1641369A (en) | 2005-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410001620 Pending CN1641369A (en) | 2004-01-05 | 2004-01-05 | Video-audio plug detecting device and method |
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| CN (1) | CN1641369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983894A (en) * | 2013-02-13 | 2014-08-13 | 快捷韩国半导体有限公司 | Jack detector and jack detecting method |
-
2004
- 2004-01-05 CN CN 200410001620 patent/CN1641369A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983894A (en) * | 2013-02-13 | 2014-08-13 | 快捷韩国半导体有限公司 | Jack detector and jack detecting method |
| CN103983894B (en) * | 2013-02-13 | 2018-07-17 | 快捷韩国半导体有限公司 | Plug detector and plug detection method |
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