CN1722275A - CD playing condition judgement method for CD device - Google Patents
CD playing condition judgement method for CD device Download PDFInfo
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- CN1722275A CN1722275A CN 200410052736 CN200410052736A CN1722275A CN 1722275 A CN1722275 A CN 1722275A CN 200410052736 CN200410052736 CN 200410052736 CN 200410052736 A CN200410052736 A CN 200410052736A CN 1722275 A CN1722275 A CN 1722275A
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- optical disc
- disc apparatus
- video data
- dvd playback
- state judging
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Abstract
The invention relates to a quoting method of disk playing statement, which comprises: DVD video recorder or DVD player and other disk apparatus. It compares the video data of disk playing incipient read record with the video data of disk playing before which is preserved at the storage, if the comparing result is consistent, it will deem that the disk has been played and can output display menu information; if not, it will deem that the disk has not been played and can play normally; it preserves the video data into the apparatus at the same time.
Description
(1) technical field
The invention relates to the dvd playback situation determination methods of optical disc apparatus.Refer in particular to for example DVD recorder (DVD-Recorder) or DVD player (DVD-Player)) etc. in the various optical disc apparatus, can judge the dvd playback situation determination methods of a kind of optical disc apparatus of playing before the CD that is inserted in the device is whether.
(2) background technology
Recently can non-volatile recording or play the CD of high image quality video and high tone quality audio frequency, DVD CDs such as (DVD:Digital Versatile Disc) and can on CD, writing down or the optical disc apparatus of played data for example, for example DVD recorder (DVD-Recorder) or DVD player optical disc apparatus such as (DVD-Player) have obtained exploitation, and are applied to gradually in the daily field.
On the other hand, above-mentioned optical disc apparatus, for example the optical disc apparatus of similar DVD recorder has comprised laser head 11 as shown in Figure 1, has carried out the parts such as VDR (Video Disc Record) system 12, menu diagram generation device 13, microcomputer 14 and storer 15 that video display write down.
When CD 10 is inserted in the device, above-mentioned microcomputer 14 is just carried out the focusing (Focus) at initial stage and is followed the tracks of auxiliary movements such as (Tracking), and reads above-mentioned CD 10 specific regions and for example import the guidance information that is writing down in (Lead-In) zone and be saved in the above-mentioned storer 15.
And, when above-mentioned microcomputer 14 is carried out the action of CD 10 data playback according to user's requirement (passing through operating key), will search for, with reference to the guidance information in above-mentioned storer (15), and the video of record in CD 10 data areas (Data Area) and audio data stream (A/V) a series of control actions such as read/play.
But, in general optical disc device, for example optical disc apparatus such as optical disk recorder or CD player utilizes in the process, the user be difficult to judge in the own CD that is had which was once play, which plays as yet, can only could judge accurately it by the actual play video image, this weakness has been brought inconvenience to the user, and needs to consume the long time.
(3) summary of the invention
Purpose of the present invention will solve above-mentioned variety of problems exactly, propose a kind of in various optical disc apparatus such as DVD recorder or DVD player, from CD read decide the video data of record size and be kept at the video data that the institute the storer decide record size to compare, judge that with this CD that is inserted in the device is the dvd playback situation determination methods of former a kind of optical disc apparatus of playing.
In order to achieve the above object, optical disc apparatus dvd playback state judging method will may further comprise the steps among the present invention: the 1st step, and video data that reads in the CD and the video data that is kept in the optical disc apparatus internal storage compare; The 2nd step judges according to above-mentioned comparative result whether described CD was play in the past.
In above-mentioned the 1st step, the dvd playback initial stage read decide record size video data and by former play operation be kept in the optical disc apparatus internal storage decide the record size video data and compare.And in the 2nd step, according to above-mentioned comparative result, if being judged as this CD had play in the past, that will export display menu information; Be judged as this CD and do not play in the past, that just normal execution is play.
Effect of the present invention:
The dvd playback situation determination methods of optical disc apparatus of the present invention is in DVD recorder (DVD-Recorder) or DVD player various optical disc apparatus such as (DVD-Player), the dvd playback initial stage read decide record size video data and by before play operation be kept in the device internal storage decide the record size video data and compare; If above-mentioned comparative result unanimity will be judged as this CD and play in the past, and the output display menu information; If comparative result is inconsistent, will be judged as this CD and not play in the past, and normal the execution is play; Simultaneously, the voice data that reads is kept in the device, makes the user judge more like a cork whether this CD is the CD of playing in the past; Can select to play the CD of not playing in the past easily by user of the present invention.
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
What Fig. 1 indicated is the formation of general optical disc device.
What Fig. 2 indicated is the action flow chart of using optical disc apparatus dvd playback state judging method of the present invention.
What Fig. 3 indicated is to use the comparison procedure of deciding the record size video data in the optical disc apparatus of the present invention.
What Fig. 4 indicated is to use the menu information picture embodiment that output shows in the optical disc apparatus of the present invention
The symbol description of major part in the accompanying drawing:
10: CD 11: laser head
12:VDR system 12: menu diagram generation device
14: microcomputer 15: storer
(5) embodiment
With reference to the accompanying drawings, the embodiment to the dvd playback state judging method of optical disc apparatus of the present invention is described in detail.
The dvd playback state judging method of the optical disc apparatus that the present invention relates to goes in the multiple optical disc apparatus such as DVD recorder or DVD player.
What Fig. 2 indicated is the action flow chart of using optical disc apparatus dvd playback state judging method of the present invention, elaborates below.
S10, the front with reference to Fig. 1 narrated the same, when CD 10 inserted in the devices, the microcomputer 14 in the optical disc apparatus carried out the focusing at initial stage and follows the tracks of auxiliary movement.
S11, and 14 pairs of CDs of above-mentioned microcomputer 10 play primary positions and for example search for the starting position of the 1st title (Title 1), read then record wherein decide the record size video data.
What Fig. 3 indicated is to use the comparison procedure of deciding the record size video data in the optical disc apparatus of the present invention.
Through said process read decide the video data of record size, 8 bit video datas that writing down in 8 bit video datas that for example read from CD and the device internal storage 15 compare, at this moment, microcomputer 14 compares above-mentioned 8 bit video datas according to low bit Low Bit order, will stop comparison procedure if find inconsistent bit; In addition, can also only carry out selectivity ratios to a part of video data (for example, 1b, 3b, 5b).
Does S12 by above-mentioned comparison procedure, judge whether video data in store in the video data read and the above-mentioned storer 15 consistent from CD 10?
S13, when if whether in store video data is consistent in the video data that reads from CD 10 and the above-mentioned storer 15, CD 10 in microcomputer 14 judgment means is CDs of playing in the past, and Control-Menu diagram generation device 13 output display menu information pictures.
Comprise following content in the above-mentioned menu information picture as shown in fig. 4: prompted dialog frame, the temporal information play in the past for example 200 on November 9,12: 5, the number of times information play had in the past for example been play 2 inferior menu informations.
In addition, comprise also in the above-mentioned menu information picture that ' whether carrying out playback action ' information and the CD that supplies the user to select withdraw from the choice menus of (Disc Eject) or play operation.
Does S14 judge whether to carry out the dvd playback action?
S15, if judge that the user selects CD to withdraw from item from the menu information picture, above-mentioned microcomputer 14 will stop playing, and CD is withdrawed from; By above-mentioned principle of work, play before this CD out-of-dately when being judged to be, will automatically perform CD and withdraw from action.
S16, from the menu information picture, select to play item if in above-mentioned flow process S14, judge the user, above-mentioned microcomputer 14 will be carried out the dvd playback action, increase the broadcasting time of 1 correlations data of optical disk simultaneously in the storer 15 again, and its reproduction time is updated to present reproduction time, and flow process finishes.
S17, on the other hand, in above-mentioned flow process S12, above-mentioned microcomputer 14 compares above-mentioned 8 bit video datas according to low bit-order, if when inconsistent, the CD 10 that just is judged to be in the device is not the CD of once playing.
S18, then, the video data that will read from CD 10 is kept in the storer 15, carries out the normal play action simultaneously; At this moment, will preserve the reproduction time and the broadcasting time information of relevant video data in the storer 15; And above-mentioned reproduction time is registered as present time, and above-mentioned broadcasting time then is registered as 1 time, and manages.
As a reference, the present invention goes in the multiple optical disc apparatus such as DVD recorder or DVD player; And the demonstration of menu information picture also can be adopted various form.In addition, storer can also be preserved reproduction time, broadcasting time and other relevant informations of relevant playing video data.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used 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 modification of the above embodiment.
Claims (9)
1, a kind of dvd playback state judging method of optical disc apparatus is characterized in that comprising:
The 1st step compares video data that reads in the CD and the video data that is kept in the optical disc apparatus internal storage;
The 2nd step judges according to above-mentioned comparative result whether described CD was play in the past.
2, the dvd playback state judging method of optical disc apparatus as claimed in claim 1 is characterized in that:
In described the 1st step, be with the dvd playback initial stage read decide record size video data and by play operation before the described CD be kept in the optical disc apparatus internal storage decide the record size video data and compare.
3, the dvd playback state judging method of optical disc apparatus as claimed in claim 2 is characterized in that:
In the process of described comparison, according to low bit-order 8 bit video datas are compared, will stop comparison procedure if find inconsistent bit.
4, the dvd playback state judging method of optical disc apparatus as claimed in claim 1 is characterized in that:
The video data of preserving in the described optical disc apparatus internal storage is after the playback action initial stage of CD is read, and information such as the reproduction time of described CD and broadcasting time will be kept in the device internal storage.
5, the dvd playback state judging method of optical disc apparatus as claimed in claim 1 is characterized in that:
In described the 2nd step, according to described comparative result, to play in the past if be judged as described CD, that will export display menu information.
6, the dvd playback state judging method of optical disc apparatus as claimed in claim 5 is characterized in that:
Not only comprise information such as reproduction time and broadcasting time in the described menu information picture, but also comprise and to select CD to withdraw from or the menu item of dvd playback.
7, the dvd playback state judging method of optical disc apparatus as claimed in claim 6 is characterized in that:
When described menu information picture is carried out playback action, will increase broadcasting time information in the described storer one time, and reproduction time is updated to present time.
8, the dvd playback state judging method of optical disc apparatus as claimed in claim 1 is characterized in that:
In described the 2nd step, will be judged to be described CD and not play when inconsistent through described relatively the appearance, and carry out the normal play action, simultaneously, be read decide record size video data then be kept in the optical disc apparatus.
9, the dvd playback state judging method of optical disc apparatus as claimed in claim 8 is characterized in that:
The described video data of deciding record size, relevant informations such as its reproduction time and broadcasting time are kept in the optical disc apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052736 CN1722275A (en) | 2004-07-12 | 2004-07-12 | CD playing condition judgement method for CD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052736 CN1722275A (en) | 2004-07-12 | 2004-07-12 | CD playing condition judgement method for CD device |
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| Publication Number | Publication Date |
|---|---|
| CN1722275A true CN1722275A (en) | 2006-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410052736 Pending CN1722275A (en) | 2004-07-12 | 2004-07-12 | CD playing condition judgement method for CD device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256294B (en) * | 2007-02-26 | 2013-01-02 | 株式会社日本显示器西 | Electro-optical device, semiconductor device, display device, and electronic apparatus having the display device |
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2004
- 2004-07-12 CN CN 200410052736 patent/CN1722275A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256294B (en) * | 2007-02-26 | 2013-01-02 | 株式会社日本显示器西 | Electro-optical device, semiconductor device, display device, and electronic apparatus having the display device |
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