CN1988009A - Method for judging damaged writing optic disc - Google Patents
Method for judging damaged writing optic disc Download PDFInfo
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- CN1988009A CN1988009A CN 200510111685 CN200510111685A CN1988009A CN 1988009 A CN1988009 A CN 1988009A CN 200510111685 CN200510111685 CN 200510111685 CN 200510111685 A CN200510111685 A CN 200510111685A CN 1988009 A CN1988009 A CN 1988009A
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- judging damaged
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Abstract
This invention relates to a method for judging harmed disks including the following steps: testing the transmission speed of data of a connecting device to outside based on the state of a disk, judging if the disk is poor basded on the tested transmission speed of data, testing the volume of replaced data written-in in the replacement write-in region to judge if the disk is harmed based on the tested data volume and backs up the written-in content of the harmed disk on a HD.
Description
Technical field
The invention relates to the technology of method for judging damaged writing optic disc, especially judge a kind of method of discrimination of the quality of CD according to read and transmit the transfer rate of data, perhaps detect the quantity that substitutes the alternate data that write area write on the CD from CD to external connection device.
Background technology
Generally speaking, CD can be because of the laser head noise, fingerprint, and pore or the like and being damaged causes the readability of CD to reduce, and writes data conditions and takes place in order to prevent that in the future CD can not be play, and necessarily requires to be backed up writing data (file).
, current, not to rely on device to the differentiation of impaired CD, but rely on the user initiatively to carry out.So, if the user can not determine impaired CD exactly, just can not back up writing data, the writing data and just can not be played out of CD, this is its existing problem.
Summary of the invention
As mentioned above, the present invention proposes in order to address the above problem.The objective of the invention is to provides a kind of method for judging damaged writing optic disc for the user, promptly judge a kind of method of discrimination of the quality of CD according to read and transmit the transfer rate of data, perhaps detect the quantity that substitutes the alternate data that write area write on the CD from CD to external connection device.The present invention is by to the judgement of CD quality, and corresponding adopting appropriate measures is as writing content backup to hard disk with impaired CD.The present invention is the very big technology of purposes.
To achieve these goals, has the feature that constitutes by following step:, detect the step that transmits the speed of data to external connection device according to the situation of CD according to method for judging damaged writing optic disc of the present invention; According to detected data transfer rate, judge the step of the quality of CD; Detect the step of the quantity of the alternate data that alternative write area is write on the CD; According to detected data volume, judge the step of the quality of CD.
Effect of the present invention:
As mentioned above, a kind of method for judging damaged writing optic disc that provides for the user of the present invention, be to judge a kind of method of discrimination of the quality of CD according to read and transmit the transfer rate of data, perhaps detect the quantity that substitutes the alternate data that write area write on the CD from CD to external connection device.The present invention is by to the judgement of CD quality, and corresponding adopting appropriate measures is as writing content backup to hard disk with impaired CD.This is the good result that the present invention has.
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
Fig. 1 is expression according to the formation synoptic diagram of the embodiment of the main frame (PC) of the embodiment of method for judging damaged writing optic disc of the present invention and CD drive (DVD Drive).
Fig. 2 is the workflow diagram of expression according to the embodiment of method for judging damaged writing optic disc of the present invention.
Fig. 3 is the workflow diagram of expression according to another embodiment of method for judging damaged writing optic disc of the present invention.
The symbol description of major part in the accompanying drawing:
10: hard disk 11: control device
12,24: interface arrangement 20: CD
21: laser head 22:VDR system
23: microcomputer 100: main frame (PC)
200: CD drive (DVD Drive)
Embodiment
Below with reference to accompanying drawings the embodiment according to method for judging damaged writing optic disc of the present invention is elaborated.
Fig. 1 is external connection device (host PC 100) and CD drive (DVD Drive) the 200 formation synoptic diagram of expression according to an embodiment of method for judging damaged writing optic disc of the present invention.
Main frame 100 comprises with the lower part: the hard disk of stocking system program and data (HDD) 10; By the program of operation on the hard disk 10, control and carry out writing and playing of data, and judge the control device 11 of the quality of CD 20; According to the agreement of appointment, accept the data sent from CD drive 200, perhaps data are sent to the interface arrangement (i/F) 12 of CD drive 200.
CD drive 200 is by CD (DVD) 20, sensor 21, VDR (Video Disc Record) system 22, microcomputer 23, interface arrangement (i/F) 24 grades are formed, under the operation control of microcomputer 23, VDR system 22 can be written to the data system from the outside input on the CD (DVD-RW/R) 20 that is inserted into by laser head 21, also can read and play the data that are written on the CD 20 by laser head 21.
In said structure, interface arrangement 12,24 can be made up of the ATAPI interface arrangement.
Fig. 2 is the workflow diagram of expression according to the embodiment of method for judging damaged writing optic disc of the present invention.Below with reference to the structure of Fig. 1, describe method for judging damaged writing optic disc in detail according to Fig. 2 of the present invention.
S10 at first, is installed to CD 20 in the CD drive 200.
S11, the relative program on the control device 11 operation hard disks 10 according to this working procedure, sends data read command to CD drive 200 by interface arrangement 12, and at this moment, control device 11 will read the position and also together specify.
If read locator data, read the dish order just control device 11 transmits to CD drive 200, thereby read locator data from the relevant position of CD 20 from CD 20.
S12, microcomputer 23 in accordance with receive read the dish order, under the operation of microcomputer 23 control, VDR system 22 reads locator data by laser head 21 from the relevant position of CD 20, and the locator data that is read is carried out error correction and signal processing operations.
S20, in carrying out above operating process, if make a mistake, microcomputer 23 carries out aforesaid operations once more in accordance with reading the dish order in the number of times of regulation.
S21, the data that microcomputer 23 transmits through error correction and signal Processing to main frame 100 by interface arrangement 24.
S22, in view of the above, control device 11 is when receiving the above-mentioned data that send, detect the transfer rate of data, this realizes according to detecting the average delivery time, and the average delivery time is that locator data transmits reads to coil the number of order and operation each is read to coil the needed time of order and obtains according to being used to read.
S23, control device 11 is judged the quality of CD 20 according to the transfer rate that detects, if making a mistake when reading to coil command-execution operation, repeat aforesaid operations so once more, carries out and reads the dish needed time of order and just be extended.Therefore, control device 11 just can be judged the quality of CD 20 at an easy rate by the transfer rate that is detected.
Whether at this moment, making a mistake is situation by CD 20, promptly CD whether damaged/aging deciding.
So, if CD 20 is judged as impaired CD, control device 11 is by display device such as monitors, and the output result of determination makes the user can take adequate measures, as the data that write on backup CD 20 on the hard disk 10.
Fig. 3 is the workflow diagram of expression according to another embodiment of method for judging damaged writing optic disc of the present invention.Below, with reference to the formation of Fig. 1, describe method for judging damaged writing optic disc in detail according to Fig. 3 of the present invention.
Generally, in optical disc data district additional configuration the spare area is arranged.So, the data field just is divided into user data area and spare area.The spare area is in order to tackle the data field when going wrong and the redundant space of preparing, if being written in the user data of user data area goes wrong, the user data that is recorded in so on the part that goes wrong is just made carbon copies on this spare area with ECC unit.
S30 on the one hand, inserts CD 20.
S31 is at first judged the quality of CD 20 by control device 11.Relative program on the control device 11 operation hard disks 10, according to this working procedure, by interface arrangement 12 requiring reading order to send CD drive 200 to the management information of above-mentioned spare area, at this moment, control device 11 also together specifies the position (for example, file system area) of reading of management information come out.
S32, microcomputer 23 is abideed by the reading order that receives and is operated control, under this operation control of microcomputer 23, VDR system 22 reads the management information to the spare area of sending out from the relevant position of CD 20 by laser head 21, and the management information of reading is carried out error correction and signal processing operations.
S40, so, if this moment occurs mistake, microcomputer 23 carries out above-mentioned steps S32 operation again according to reading order in the number of times of regulation.
S41, microcomputer 23 will be sent to main frame 100 through the data of error correction and signal Processing by interface arrangement 24.
S42, control device 11 is according to the management information that receives, and the data that detect the spare area write rate, and detection is writing reference position and writing end position and realize by the affirmation spare area that obtains from supervisory signal.
S43, control device 11 writes the quality that rate is judged CD 20 according to detected, here, if the allowed band of the rate that the writes overshoot that is detected (for example, spare area 90%) can judge that so CD 20 is impaired CDs.
So, if CD 20 is judged as impaired CD, control device 11 is by display device such as monitors, and the output result of determination makes the user can take adequate measures, in the data that write that back up on the hard disk 10 on the CD 20.
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 (11)
1, a kind of method for judging damaged writing optic disc is characterized in that having by following two steps and constitutes:
According to the situation of CD, detect the step that transmits the speed of data to external connection device;
According to detected data transfer rate, judge the step of the quality of CD.
2, method for judging damaged writing optic disc as claimed in claim 1 is characterized in that also comprising the following steps:
When judging that CD is impaired CD, the data on the CD are backuped to other write on the medium.
3, method for judging damaged writing optic disc as claimed in claim 2 is characterized in that:
Above-mentioned other writes medium and is meant the hard disk that is installed on the external connection device.
4, method for judging damaged writing optic disc as claimed in claim 1 is characterized in that also comprising the following steps:
The result of judgement is provided by display device output.
5, method for judging damaged writing optic disc as claimed in claim 1 is characterized in that:
The situation of above-mentioned CD is meant the breakage/aging situation that forms owing to CD.
6, a kind of method for judging damaged writing optic disc is characterized in that comprising following two steps:
Detect the step of the quantity of the alternate data that alternative write area is write on the CD;
According to detected data volume, judge the step of the quality of CD.
7, method for judging damaged writing optic disc as claimed in claim 6 is characterized in that also comprising the following steps:
When judging that CD is impaired CD, the data on the CD are backuped to other write on the medium.
8, method for judging damaged writing optic disc as claimed in claim 7 is characterized in that:
Above-mentioned other writes medium and is meant the hard disk that is installed on the external connection device.
9, method for judging damaged writing optic disc as claimed in claim 6 is characterized in that:
Above-mentioned alternative write area is meant the spare area that obtains guaranteeing in writing the data field of medium;
The above-mentioned data that are transmitted are meant the management information about the spare area.
10, method for judging damaged writing optic disc as claimed in claim 9 is characterized in that:
The above-mentioned quantity that writes data is obtained from management information, writes by what determine the spare area that reference position and end position finish.
11, method for judging damaged writing optic disc as claimed in claim 6 is characterized in that also comprising the following steps:
The result of judgement is provided by display device output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111685 CN1988009A (en) | 2005-12-20 | 2005-12-20 | Method for judging damaged writing optic disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111685 CN1988009A (en) | 2005-12-20 | 2005-12-20 | Method for judging damaged writing optic disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1988009A true CN1988009A (en) | 2007-06-27 |
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ID=38184773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510111685 Pending CN1988009A (en) | 2005-12-20 | 2005-12-20 | Method for judging damaged writing optic disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1988009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937696A (en) * | 2009-06-29 | 2011-01-05 | 蒂雅克股份有限公司 | The dish testing fixture |
-
2005
- 2005-12-20 CN CN 200510111685 patent/CN1988009A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937696A (en) * | 2009-06-29 | 2011-01-05 | 蒂雅克股份有限公司 | The dish testing fixture |
| CN101937696B (en) * | 2009-06-29 | 2013-11-13 | 蒂雅克股份有限公司 | Disk inspection apparatus |
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| WD01 | Invention patent application deemed withdrawn after publication |