CN101042908B - Method for automatically regulating velocity of computer CD ROM, equipment and computer - Google Patents
Method for automatically regulating velocity of computer CD ROM, equipment and computer Download PDFInfo
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- CN101042908B CN101042908B CN2006100655494A CN200610065549A CN101042908B CN 101042908 B CN101042908 B CN 101042908B CN 2006100655494 A CN2006100655494 A CN 2006100655494A CN 200610065549 A CN200610065549 A CN 200610065549A CN 101042908 B CN101042908 B CN 101042908B
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Abstract
This invention provides one method and device to automatically adjust computer driver speed and its use method and computer, which comprises the following steps: initially setting driver speed according to the drier disc kind; testing user application mode through computer operation system on disc; according to the application mode, relatively changing driver speed. This invention can adjust the speed according to user mode for any type of driver, disc and any HDDVD and Blueray.
Description
Technical field
The present invention relates to field of computer technology, the computing machine that relates in particular to a kind of method and apparatus of automatic adjusting velocity of computer CD ROM and use this method and apparatus.
Background technology
Referring to the CD-ROM drive of present market, no matter be desktop computer or notebook computer, its speed all presents more and more higher trend, and the CD-ROM drive of desktop computer can reach 52x very early.Yet the spindle in optical disc drive motor speed is high more, and corresponding noise, vibrations and power consumption also can be high more; Simultaneously also can produce bigger influence for the laser head reading of data at a high speed, mainly be to cause the data read instability.But it is evident that, the user for the application model of CD-ROM drive except reading of data, also having prior is exactly playing back music CD and appreciation video disc (VCD, DVD), this shows it might not is that the user needs most at a high speed, and what the user needed is to regulate CD-ROM drive speed automatically.
As follows at three kinds of solutions of this problem main existence in the field of business at present:
First kind is by manual setting, such as on CD-ROM drive, increase a button, manually set the CD-ROM drive speed that decides by the user, yet, this method is inconvenient for user's use, and the user also not necessarily knows select which kind of speed for use at application model.
Second method is that at first CD-ROM drive receives reading command from operating system (OS) or application program, to obtain block counts that reads and the time value that begins to read, and the block counts that the last time is read, last time value and this time value that begins to read that finishes to read carry out computing, must operate required reading speed up till now; Judge whether required reading speed is greater than or less than the reading speed of present CD-ROM drive, if meet and then write down number of times, and re-treatment, when the number of times of record greater than critical value, then the speed with CD-ROM drive is improved or is reduced.This method has realized changing the automatism of speed to a certain extent, but it needs a period of time could obtain optimum velocity, and it does not support the application of DVD-ROM.It can not be applied to all types of CD-ROM drives simultaneously.
The third method is a variably controlling data read speed in CD-ROM drive.This method comprises whether the decision operation system has sent reading order; If judge and sent reading order, then detect the additional information relevant with reading order; And control the optical disc data reading speed changeably according to additional information.But it is mainly used in the situation that has two CD-ROM drives in the computer system, thereby carries out data transfer quickly.Yet this method needs more or less change general CD or CD-ROM drive.
Therefore, be necessary to design a kind of method and apparatus that can regulate velocity of computer CD ROM according to user's application model automatically, it goes for the CD-ROM drive, CD of present any kind and following HDDVD and the Blueray that can occur in one period, and realizes power saving, noise reduction, prolongation CD-ROM drive serviceable life.
Summary of the invention
The objective of the invention is to, a kind of method that realizes the automatic adjusting velocity of computer CD ROM in power saving, noise reduction, prolongation CD-ROM drive serviceable life is provided.
Another object of the present invention is to, a kind of equipment of realizing the automatic adjusting velocity of computer CD ROM in power saving, noise reduction, prolongation CD-ROM drive serviceable life is provided.
A further object of the present invention is, a kind of computing machine of realizing the automatic adjusting velocity of computer CD ROM in power saving, noise reduction, prolongation CD-ROM drive serviceable life is provided.
According to purpose of the present invention, a kind of method of automatic adjusting velocity of computer CD ROM is provided, comprising: according to the kind initial setting up CD-ROM drive speed that is placed on the CD in the CD-ROM drive; Detect the application model that the user is undertaken by computer operation system on disc; And according to this application model, corresponding changing driver speed.
According to another object of the present invention, a kind of equipment of automatic adjusting velocity of computer CD ROM is provided, and it links to each other with CD-ROM drive with operation system of computer respectively, comprising: module is set, be used for the user when CD-ROM drive is placed CD, CD-ROM drive speed being set according to disc types; And detection module, be used to detect the application model that the user carries out CD by operating system, wherein, this is provided with the application model that module further obtains according to detection module, corresponding setting CD-ROM drive speed.
According to a further object of the present invention, a kind of computing machine that uses the equipment of above-mentioned automatic adjusting velocity of computer CD ROM is provided, this computing machine is by the CD in the operating system application CD-ROM drive, this equipment is according to the kind initial setting up CD-ROM drive speed that is placed on the CD in the CD-ROM drive, detect the application model that this operating system is carried out CD, and according to this application model, corresponding changing driver speed.
The invention has the beneficial effects as follows: the method and apparatus of automatic adjusting velocity of computer CD ROM provided by the invention and the computing machine that uses this method and apparatus, can regulate velocity of computer CD ROM automatically according to user's application model, it goes for the CD-ROM drive, CD of present any kind and following HDDVD and the Blueray that can occur in one period, and realizes power saving, noise reduction, prolongation CD-ROM drive serviceable life.
Description of drawings
Fig. 1 has shown the overall construction drawing that can regulate the computing machine of CD-ROM drive speed automatically according to of the present invention;
Fig. 2 has shown the concrete structure module map according to conditioning equipment 2 of the present invention; And
Fig. 3 example according to the flow process of automatic adjusting velocity of computer CD ROM of the present invention.
Embodiment
Below with reference to description of drawings according to the method and apparatus of automatic adjusting velocity of computer CD ROM of the present invention and the computing machine that uses this method and apparatus.
Fig. 1 has shown the overall construction drawing that can regulate the computing machine of CD-ROM drive speed automatically according to of the present invention.
As shown in Figure 1, this computing machine comprises operating system 1, conditioning equipment 2 and CD-ROM drive 3.
This conditioning equipment 2 detects the application model that this operating system is carried out CD according to the kind initial setting up CD-ROM drive speed that is placed on the CD in the CD-ROM drive, and according to this application model, corresponding changing driver speed.
Because the present invention carries out the setting of the friction speed of CD-ROM drive by the user to the classification of the application model of CD, so below the design feature of variety classes CD and the application model of CD will be described at first.
CD classification according to routine, mainly have following a few class CD: music CD (AudioCD), VCD, DVD, optical data disk (can be CD or DVD), CDPlus CD (the special CD that optical disk-use imprinting software generates, it is that CD music, partial content are data that partial content is promptly arranged) at present.
Be well known that pairing optical file structure of above-mentioned different types of CD and form are as follows:
1.Audio the compact disk structure of CD is the CD-DA form, the characteristics of its optical track are to contain many optical tracks, do not have bibliographic structure simultaneously;
2.VCD CD have bibliographic structure, its file system belongs to the VCD file system, contains many optical tracks;
3.DVD compact disk file system be the MicroUDF file system, simultaneously it must contain this file of VIDEO_TS.IFO.
4. the part-structure of compound (CDPlus) CD is the CD-DA form, and file belongs to the Windows system file;
5. remove above several CD, think that then remaining CD is exactly the general data CD.
For above-mentioned disc types and compact disk structure, its application model has:
1. play CD to appreciate CD content, such as the CD that listens to the music, see VCD and DVD;
2. merely read data of optical disk, such as program on the copy content, fixing disc etc.;
3. carry out above two kinds of operations simultaneously, such as listen the CD song on the optical disk, the while is the content of other on copy again.
Fig. 2 has shown the concrete structure module map according to conditioning equipment 2 of the present invention, and this conditioning equipment 2 is regulated velocity of computer CD ROM automatically according to the application model of above-mentioned compact disk structure characteristics and CD.
As shown in Figure 2, this conditioning equipment 2 comprises analysis module 21, module 22 and detection module 23 is set.
Place CD in CD-ROM drive 3 the user, this analysis module 21 is put into the kind of the CD of CD-ROM drive 3 according to the design feature analysis of above-mentioned CD, for example when the structure of optical analysis discs was CD-DA, then the analysis result of analysis module 21 acquisitions was a music CD for this CD; When analysis module 21 analyzes under the situation that the CD of putting into not is music CD, VCD, DVD and optical disk, then the analysis result of Huo Deing is an optical digital disk for this CD.
The analysis result of module 22 according to analysis module 21 is set, according to disc types suitable initial CD-ROM drive speed is set, and instruct to the CD-ROM drive transmission speed.
Simultaneously, the application model of 23 pairs of CDs of detection module detects, and promptly detecting the user is to adopt any in above-mentioned three kinds of application models to the CD in the CD-ROM drive.For instance, when the user plays Audio CD with appreciation by operating system, it is to send order firmware (Fireware) to CD-ROM drive by operating system via the ATAPI communication interface by playout software, then the CD-ROM drive firmware is carried out " Play Audio MSF " order, begins to play Audio CD.If obviously do not play Audio CD, so just only exist AudioCD to grab this mode of track (CD changes into MP3 or WMA, i.e. reading of data).Thereby whether detection module 23 can send " Play Audio MSF " order to CD-ROM drive by the detecting operation system, and obtains the two kind application models of user to Audio CD easily, the one, play, and the 2nd, reading of data.
In like manner for VCD and DVD, because it content that comprises all is a mpeg file, and mpeg file is need decode finally to export audio, video data when playing.If the user just duplicates CD content or uses imprinting software to carry out the CD pirate recordings, then do not need to decode.Therefore, detection module 23 just can be known the application model (playing VCD and DVD to appreciate or simple reading of data) of current optical disc by judging whether computing machine decodes to CD content.Certainly, whether detection module 23 also can by having opened the DVD playout software in the detecting operation system, and whether this DVD playout software moving etc., judges that the application model of current optical disc is a DVD playing back.
It should be understood that duplicate instructions that detection module 23 can be directly sends the CD-ROM drive firmware according to operating system etc., or according to operating system to the action of the program implementation in data CD or the optical disk, judge that current application mode is simple reading of data.For example, operating system is when carrying out replicate run, and this replication actions can be embodied in the shear plate in the buffer area, by detecting this shear plate, and can the content of decision operation system in the copy data CD; Detect perhaps in the Windows operating system that the path of performed exe program file is to be directed to CD-ROM drive in the task manager interface, but the program of decision operation system in carrying out optical data disk or optical disk then.
The testing result (application model of CD) of module 22 according to detection module 23 is set, resets CD-ROM drive speed, and send new speed command to CD-ROM drive.The above-mentioned module 22 that is provided with can utilize the existing mode that CD-ROM drive speed is set to be provided with.Wherein, because CD-ROM equipment itself is to be controlled by the firmware on the control chip that runs on CD-ROM drive (Firmware).In Firmware, have a lot of parameters, comprising CD-ROM drive speed parameter (ReadSpeed).The order that module 22 can send change speed to the CD-ROM drive firmware is set, Set ReadSpeed=Max for example, then the CD-ROM drive firmware will be adjusted to high speed with the speed of CD-ROM drive according to this order.
Thereby, and comprise that the computing machine of this conditioning equipment 2 can realize regulating automatically velocity of computer CD ROM according to conditioning equipment of the present invention.
Below, will further specify the flow process that conditioning equipment 2 realizes regulating automatically velocity of computer CD ROM in conjunction with process flow diagram.
Fig. 3 example according to the flow process of automatic adjusting velocity of computer CD ROM of the present invention.
As shown in Figure 3, place CD under the situation of CD-ROM drive 3 the user,
S30: analysis module 21 is put into the kind of the CD of CD-ROM drive 3 according to the design feature analysis of CD.
At the CD of putting into CD-ROM drive 3 is under the situation of music CD, enters step S301.
S301: module 22 is set gives an order to the firmware of CD-ROM drive 3, be set to 1X (first speed) with the speed of CD-ROM drive 3 by the ATAPI interface.
S302: detection module 23 detects the application model of user to current optical disc, if for play-overing music CD, then do not change the operating rate 1X of CD-ROM drive; If detect system sends order from playaudio msf to CD-ROM drive, but CD-ROM drive start working simultaneously again, to detect the application model of current optical disc be simple data read to detection module 23 so, then enters step S303.
S303: the application model that detects current optical disc at detection module 23 is simple data read or appreciates CD content simultaneously and read under the situation of data of optical disk, module 22 is set sends the order gather way, for example rise to higher doubly speed or directly be set to the most at a high speed to the CD-ROM drive firmware.
At the CD of putting into CD-ROM drive 3 is under the situation of VCD, enters step S311.
S311: module 22 is set gives an order to the firmware of CD-ROM drive 3, be set to 2X (second speed) with the speed of CD-ROM drive 3 by the ATAPI interface.
S312: detection module 23 detects the application model of user to current optical disc, if for play-overing VCD, does not then change the operating rate 2X of CD-ROM drive; User this moment the content in the video disc has been carried out that data are duplicated etc. if detect, for example say and duplicate a Dat file to hard disk (not needing to decode), to detect the application model of current optical disc be simple data read to detection module 23 so, then enters step S313.
S313: the application model that detects current optical disc at detection module 23 is simple data read or appreciates CD content simultaneously and read under the situation of data of optical disk, module 22 is set sends the order gather way, for example rise to higher doubly speed or directly be set to the most at a high speed to the CD-ROM drive firmware.
At the CD of putting into CD-ROM drive 3 is under the situation of DVD, enters step S321.
S321: module 22 is set gives an order to the firmware of CD-ROM drive 3, be set to 4X (third speed) with the speed of CD-ROM drive 3 by the ATAPI interface.
S322: detection module 23 detects the application model of user to current optical disc, if for play-overing DVD, does not then change the operating rate 4X of CD-ROM drive; If detect user this moment the content in the video disc is carried out (not needing to decode) such as optical media replication imprintings, to detect the application model of current optical disc be simple data read to detection module 23 so, then enters step S323.
S323: the application model that detects current optical disc at detection module 23 is simple data read or appreciates CD content simultaneously and read under the situation of data of optical disk, module 22 is set sends the order gather way, for example rise to higher doubly speed or directly be set to the most at a high speed to the CD-ROM drive firmware.
At the CD of putting into CD-ROM drive 3 is under the situation of optical disk (CDplus CD), enters step S331.
S331: owing to comprise part music CD information in the CDplus CD, module 22 is set gives an order to the firmware of CD-ROM drive 3, be set to 1X (first speed) with the speed of CD-ROM drive 3 by the ATAPI interface.
S332: detection module 23 detects the application model of user to current optical disc, if for play-overing music, does not then change the operating rate 1X of CD-ROM drive; If opened alternative document on this CDPlus CD if detect the user, perhaps moved executable program, to detect the application model of current optical disc be simple data read to detection module 23 so, then enters step S333.
S333: the application model that detects current optical disc at detection module 23 is the situation of simple data read or appreciates CD content simultaneously and read under the situation of data of optical disk, module 22 is set sends the order gather way, for example rise to higher doubly speed or directly be set to the most at a high speed to the CD-ROM drive firmware.
At the CD of putting into CD-ROM drive 3 is under the situation of optical data disk, enters step S341.
S341: module 22 is set gives an order to the firmware of CD-ROM drive 3, be set to the most at a high speed with the speed of CD-ROM drive 3 by the ATAPI interface.
At the CD of putting into CD-ROM drive 3 is under the situation of blank CD, 22 of modules is set CD is not carried out any processing.
The method and apparatus of the automatic adjusting velocity of computer CD ROM that provides according to the invention described above and the computing machine that uses this method and apparatus, because it can analyze current application model to the CD-ROM drive and the CD of any kind, thereby realize regulating automatically optical driver of computer speed, and can further realize power saving, noise reduction, prolongation CD-ROM drive serviceable life.
Revise embodiment
Basic identical according to the general structure of the computing machine that can regulate CD-ROM drive speed automatically of revising embodiment and structure shown in Figure 1, difference is:
Because when the user places CD and is placed in the CD-ROM drive, existing operating system can the optical analysis discs kind, and for example when CD is music CD, operating system can automatic startup CD Player; When this CD was VCD or DVD, operating system can start corresponding playout software (for example DVD player) automatically; When this CD was optical data disk, operating system can enter the procedure operation interface in the optical data disk automatically.
Thereby in according to the computing machine of revising embodiment, in case the user is placed on CD in the CD-ROM drive 3, operating system 1 can be known the kind of this CD, and is notified to conditioning equipment 2; Conditioning equipment 2 further detects the application model that the user is undertaken by 1 pair of CD of operating system according to the notice of operating system 1, and based on the application model of the CD that detects, the speed of corresponding setting CD-ROM drive 3.
Accordingly, owing to do not need disc types is analyzed according to the conditioning equipment 2 of revising embodiment, so compare with the structure that Fig. 2 shows, conditioning equipment 2 includes only module 22 and detection module 23 is set.
This is provided with module 22 at first according to the notice of operating system 1, is under the situation of music CD at the CD of placing, and the speed that CD-ROM drive 3 is set is 1X; At the CD of placing is under the situation of VCD, and the speed that CD-ROM drive 3 is set is 2X; The CD of placing is under the situation of DVD, and the speed that CD-ROM drive 3 is set is 4X; At the CD of placing is under the situation of optical data disk, and the speed of CD-ROM drive 3 is set to the most at a high speed, and the CD-ROM drive speed that is provided with is sent to the CD-ROM drive firmware with the form of ordering.
Wherein, it should be noted that, because operating system 1 can not respond optical disk (CDplus), and be notified to conditioning equipment 2, so placing under the situation that CD and operating system do not respond, conditioning equipment 2 thinks that this CD is an optical disk, and wherein the speed that module 22 will at first be provided with CD-ROM drive 3 is set is 1X, in the application model that detects CD is simple when reading action, promotes the speed of CD-ROM drive or directly is set to the most at a high speed.
The CD-ROM drive speed 1X of above in addition institute example etc. are as just example.
In sum, the method and apparatus of automatic adjusting velocity of computer CD ROM provided by the invention and the computing machine that uses this method and apparatus, can regulate velocity of computer CD ROM automatically according to user's application model, it goes for the CD-ROM drive, CD of present any kind and following HDDVD and the Blueray that can occur in one period, and realizes power saving, noise reduction, prolongation CD-ROM drive serviceable life.
Concerning those skilled in the art, can associate other advantage and distortion easily according to above implementation type.Therefore, the present invention is not limited to above-mentioned specific embodiment, and it carries out detailed, exemplary explanation as just example to a kind of form of the present invention.In the scope that does not deviate from aim of the present invention, those of ordinary skills can replace resulting technical scheme by various being equal to according to above-mentioned specific embodiment, but these technical schemes all should be included in the scope of claim of the present invention and the scope that is equal within.
Claims (11)
1. method of automatically regulating velocity of computer CD ROM comprises:
According to the kind initial setting up CD-ROM drive speed that is placed on the CD in the CD-ROM drive;
Detect the application model of user by computer operation system on disc; And
According to this application model, corresponding changing driver speed.
2. the method for automatic adjusting CD-ROM drive speed as claimed in claim 1, wherein
Kind according to the design feature optical analysis discs of CD.
3. the method for automatic adjusting CD-ROM drive speed as claimed in claim 1 or 2, wherein
This application model comprises to be appreciated CD content, only reads data of optical disk and appreciate CD content simultaneously and read data of optical disk, and,
Disc types comprises music CD, VCD, DVD, optical disk and optical data disk.
4. the method for automatic adjusting CD-ROM drive speed as claimed in claim 3, wherein
CD in being placed on CD-ROM drive is under the situation of music CD or optical disk, CD-ROM drive speed is initially set to first speed, and, in its application model is when appreciating CD content, changing driver speed not,, improve CD-ROM drive speed or CD-ROM drive speed directly is set and be high speed for only reading data of optical disk or appreciating CD content simultaneously and when reading data of optical disk in its application model;
CD in being placed on CD-ROM drive is under the situation of VCD or DVD, CD-ROM drive speed is initially set to second speed and third speed respectively, and, in its application model is when appreciating CD content, changing driver speed not,, improve CD-ROM drive speed or CD-ROM drive speed directly is set and be high speed for only reading data of optical disk or appreciating CD content simultaneously and when reading data of optical disk in its application model; And
CD in being placed on CD-ROM drive is under the situation of optical data disk, CD-ROM drive speed directly is set for the most at a high speed.
5. equipment of automatically regulating velocity of computer CD ROM, it links to each other with CD-ROM drive with operation system of computer respectively, comprising:
Module is set, is used for the user when CD-ROM drive is placed CD, CD-ROM drive speed being set according to disc types; And
Detection module is used to detect the user by the application model of operating system to CD,
Wherein, this is provided with the application model that module further obtains according to detection module, corresponding setting CD-ROM drive speed.
6. the equipment of automatic adjusting velocity of computer CD ROM as claimed in claim 5, wherein
When the user placed CD in CD-ROM drive, operating system was discerned disc types automatically and is notified to this module is set.
7. the equipment of automatic adjusting velocity of computer CD ROM as claimed in claim 5 further comprises:
Analysis module is used for the kind according to the design feature optical analysis discs of CD, wherein
This is provided with the disc types that module is analyzed according to analysis module, initial setting up CD-ROM drive speed.
8. as the equipment of claim 6 or 7 described automatic adjusting velocity of computer CD ROM, wherein
CD in being placed on CD-ROM drive is under the situation of music CD or optical disk, this is provided with module CD-ROM drive speed is initially set to first speed, and, in its application model is when appreciating CD content, changing driver speed not,, improve CD-ROM drive speed or CD-ROM drive speed directly is set and be high speed for only reading data of optical disk or appreciating CD content simultaneously and when reading data of optical disk in its application model;
CD in being placed on CD-ROM drive is under the situation of VCD or DVD, this is provided with module CD-ROM drive speed is initially set to second speed and third speed respectively, and, in its application model is when appreciating CD content, changing driver speed not,, improve CD-ROM drive speed or CD-ROM drive speed directly is set and be high speed for only reading data of optical disk or appreciating CD content simultaneously and when reading data of optical disk in its application model; And
CD in being placed on CD-ROM drive is under the situation of optical data disk, and this is provided with module and CD-ROM drive speed directly is set for the most at a high speed.
9. computing machine that uses the equipment of automatic adjusting velocity of computer CD ROM as claimed in claim 5, this computing machine is used CD in the CD-ROM drive by operating system, it is characterized in that,
This equipment detects the application model of this operating system to CD according to the kind initial setting up CD-ROM drive speed that is placed on the CD in the CD-ROM drive, and according to this application model, corresponding changing driver speed.
10. computing machine as claimed in claim 9, wherein,
When the user placed CD in CD-ROM drive, operating system identification disc types also was notified to this equipment, and perhaps this equipment is according to the kind of the design feature optical analysis discs of CD.
11. computing machine as claimed in claim 10, wherein,
CD in being placed on CD-ROM drive is under the situation of music CD or optical disk, this equipment is initially set to first speed with CD-ROM drive speed, and, in its application model is when appreciating CD content, changing driver speed not,, improve CD-ROM drive speed or CD-ROM drive speed directly is set and be high speed for only reading data of optical disk or appreciating CD content simultaneously and when reading data of optical disk in its application model;
CD in being placed on CD-ROM drive is under the situation of VCD or DVD, this EM equipment module is initially set to second speed and third speed respectively with CD-ROM drive speed, and, in its application model is when appreciating CD content, changing driver speed not,, improve CD-ROM drive speed or CD-ROM drive speed directly is set and be high speed for only reading data of optical disk or appreciating CD content simultaneously and when reading data of optical disk in its application model; And
CD in being placed on CD-ROM drive is under the situation of optical data disk, and this equipment directly is provided with CD-ROM drive speed for the most at a high speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100655494A CN101042908B (en) | 2006-03-20 | 2006-03-20 | Method for automatically regulating velocity of computer CD ROM, equipment and computer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100655494A CN101042908B (en) | 2006-03-20 | 2006-03-20 | Method for automatically regulating velocity of computer CD ROM, equipment and computer |
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| CN101042908B true CN101042908B (en) | 2010-11-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039464B1 (en) * | 1999-03-25 | 2004-01-02 | Samsung Electronics Co., Ltd. | Recording and/or reproducing apparatus and method for a multi-session disc having a DVD application session |
| CN1489140A (en) * | 2002-10-11 | 2004-04-14 | 华硕电脑股份有限公司 | Method for preventing data read-out error of optical disk drive |
| CN1564248A (en) * | 2004-03-18 | 2005-01-12 | 威盛电子股份有限公司 | Method and device for controlling data acquisition speed of optical driver |
| US7113454B2 (en) * | 2002-03-22 | 2006-09-26 | Alpine Electronics, Inc. | Disc player and method of playing back disc |
-
2006
- 2006-03-20 CN CN2006100655494A patent/CN101042908B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1039464B1 (en) * | 1999-03-25 | 2004-01-02 | Samsung Electronics Co., Ltd. | Recording and/or reproducing apparatus and method for a multi-session disc having a DVD application session |
| US7113454B2 (en) * | 2002-03-22 | 2006-09-26 | Alpine Electronics, Inc. | Disc player and method of playing back disc |
| CN1489140A (en) * | 2002-10-11 | 2004-04-14 | 华硕电脑股份有限公司 | Method for preventing data read-out error of optical disk drive |
| CN1564248A (en) * | 2004-03-18 | 2005-01-12 | 威盛电子股份有限公司 | Method and device for controlling data acquisition speed of optical driver |
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| CN101042908A (en) | 2007-09-26 |
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