Claims
- 1. An apparatus for dynamically re-calibrating an optical disc drive during operation, comprising:
means for adjusting the level of re-calibration effort based on the performance of the disc drive, wherein the levels of calibration effort include at least one of the following:
a first calibration effort level wherein optical media parameters and servo actuator parameters are determined; a second calibration effort level wherein a notch frequency for a notch filter is determined; a third calibration effort level wherein a focus actuator offset is recalibrated; a fourth calibration effort level wherein a tracking actuator offset is recalibrated; a fifth calibration effort level wherein a focus control loop gain is adjusted; and a sixth calibration effort level wherein a tracking control loop gain is adjusted.
- 2. The apparatus, as set forth in claim 1, further wherein the optical media parameters and the servo actuator parameters are recalibrated in the second level.
- 3. The apparatus, as set forth in claim 1, further wherein the optical media parameters and the servo actuator parameters are recalibrated in the third calibration effort level.
- 4. The apparatus, as set forth in claim 1, further wherein the optical media parameters and the servo actuator parameters are recalibrated in the fourth calibration effort level.
- 5. The apparatus, as set forth in claim 1, further comprising:
means for storing calibration values generated during recalibration.
- 6. The apparatus, as set forth in claim 1, further comprising:
means for determining a plurality of zones on an optical media disc; means for generating a zone calibration table for each of the plurality of zones; and means for accessing the zone calibration table corresponding to at least one of the plurality of zones.
- 7. The apparatus, as set forth in claim 1, further comprising means for adjusting the focus control loop gain based on stored calibration values.
- 8. The apparatus, as set forth in claim 1, further comprising means for adjusting the tracking control loop gain based on stored calibration values.
- 9. The apparatus, as set forth in claim 1, further comprising means for remaining in an adjust gains state until tracking is turned off.
- 10. The apparatus, as set forth in claim 1, further comprising:
means for increasing the recalibration effort level when a previous attempt to recalibrate the disc drive was unsuccessful.
- 11. The apparatus, as set forth in claim 10, further comprising:
means for determining whether the recalibration effort levels have been exhausted.
- 12. A method for dynamically re-calibrating an optical disc drive during operation, comprising:
adjusting the level of re-calibration effort based on the performance of the disc drive, wherein the level of calibration effort includes determining at least one of the following calibration values:
optical media parameters; servo actuator parameters; a notch frequency for a notch filter; a focus actuator offset; a tracking actuator offset; a focus control loop gain; and a tracking control loop gain.
- 13. The method, as set forth in claim 12, further comprising:
storing the calibration values.
- 14. The method, as set forth in claim 12, further comprising:
determining a plurality of zones on an optical media disc; generating a zone calibration table for each of the plurality of zones; and accessing the zone calibration table corresponding to at least one of the plurality of zones.
- 15. The method, as set forth in claim 12, further comprising:
adjusting the focus control loop gain based on stored calibration values.
- 16. The method, as set forth in claim 12, further comprising:
adjusting the tracking control loop gain based on stored calibration values.
- 17. The method, as set forth in claim 12, further comprising:
remaining in an adjust gains state until tracking is turned off.
- 18. The method, as set forth in claim 12, further comprising:
increasing the recalibration effort level when a previous attempt to recalibrate the disc drive was unsuccessful.
- 19. The method, as set forth in claim 18, further comprising:
determining whether the recalibration effort levels have been exhausted.
- 20. A computer program product comprising:
instructions to implement the method of claim 12.
- 21. A data signal comprising:
instructions to implement the method of claim 12.
- 22. A system for dynamically re-calibrating an optical disc drive during operation, wherein the optical media includes a pitted premastered area that cannot be overwritten and a grooved user-writeable area that can be overwritten, comprising:
instructions operable to adjust the level of re-calibration effort based on the performance of the disc drive, wherein the levels of calibration effort include instructions operable to determine at least one of the following calibration values:
optical media parameters; servo actuator parameters; a notch frequency for a notch filter; a focus actuator offset; a tracking actuator offset; a focus control loop gain; and a tracking control loop gain.
- 23. The system, as set forth in claim 22, further comprising:
instructions operable to store the calibration values.
- 24. The system, as set forth in claim 22, further comprising:
instructions operable to determine a plurality of zones on the optical media; instructions operable to generate a zone calibration table for each of the plurality of zones; and instructions operable to access the zone calibration table corresponding to at least one of the plurality of zones.
- 25. The system, as set forth in claim 23, further comprising instructions operable to adjust the focus control loop gain based on the stored calibration values.
- 26. The system, as set forth in claim 22, further comprising instructions operable to adjust the tracking control loop gain based on the stored calibration values.
- 27. The system, as set forth in claim 22, further comprising instructions operable to remain in an adjust gains state until tracking is turned off.
- 28. The system, as set forth in claim 22, further comprising:
instructions operable to increase the recalibration effort level when a previous attempt to recalibrate the disc drive was unsuccessful.
- 29. The system, as set forth in claim 23, further comprising:
instructions operable to determine whether the recalibration effort levels have been exhausted.
CROSS-REFERENCE TO CO-FILED APPLICATIONS
[0001] The present disclosure was co-filed with the following sets of disclosures: the “Tracking and Focus Servo System” disclosures, the “Servo System Calibration” disclosures, the “Spin Motor Servo System” disclosures, and the “System Architecture” disclosures; each of which was filed on the same date and assigned to the same assignee as the present disclosure, and are incorporated by reference herein in their entirety. The Tracking and Focus Servo System disclosures include U.S. Disclosure Ser. Nos. {Attorney Docket Numbers M-11095 US, M-12077 US, M-12078 US, M-12079 US, M-12080 US, M-12081 US, M-12082 US, M-12083 US, M-12084 US, M-12085 US, M-12086 US, M-12087 US, M-12088 US, M-12089 US, M-12090 US, M-12091 US, M-12092 US, M-12093 US, M-12104 US, M-12105 US, M-12106 US, M-12107 US, M-12108 US, M-12111 US, M-12112 US, and M-12195 US.} The Servo System Calibration disclosures include U.S. Disclosure Ser. Nos. {Attorney Docket Numbers M-1 1097 US, M-12094 US, M-12095 US, M-12096 US, M-12097 US, M-12098 US, M-12099 US, M-12100 US, M-12101 US, M-12102 US, M-12103 US, M-12109 US, M-12110 US and M-12155 US.} The Spin Motor Servo System disclosures include U.S. Disclosure Ser. Nos. {Attorney Docket Numbers M-12117 US, M-12118 US, M-12119 US, M-11096 US, M-12121 US, M-12122 US, and M-12147 US.} The System Architecture disclosures include U.S. Disclosure Ser. Nos. {Attorney Docket Numbers M-1 1098 US, M-12120 US, M-12023 US, M-12024 US, M-12025 US, M-12026 US, M-12027 US, M-12028 US, M-12029 US, M-12030 US, M-12031 US, M-12032 US, and M-12177 US.}
[0002] The present disclosure was also co-filed with the following disclosures U.S. Patent Disclosure Ser. Nos. ______, and {Attorney Docket Numbers M-9115, and M-12076 US, respectively}, each of which was filed on the same date and assigned to the same assignee as the present disclosure, and are incorporated by reference herein in their entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60264351 |
Jan 2001 |
US |