| 7961584 |
Operating current modifying device and method |
Ronald Chen |
2011-06-14 |
| RE42067 |
Method for controlling optical pickup head upon switching from following mode to seeking mode |
Keng-Lon Lei |
2011-01-25 |
| 7668067 |
Power control device and method of multi base powers for optical disk drive |
Ronald Chen |
2010-02-23 |
| 7652971 |
Threshold current modifying device and method |
Ronald Chen |
2010-01-26 |
| 7652958 |
Track locking method for optical pickup head |
— |
2010-01-26 |
| 7639590 |
Power control device and method of single base power for optical disk drive |
Ronald Chen |
2009-12-29 |
| 7570569 |
Power control method of optical disk drive |
Ronald Chen |
2009-08-04 |
| RE40822 |
Calibration method for slice level of zero cross signal and method of producing track-crossing signal |
— |
2009-07-07 |
| 7518975 |
Operating current modifying device and method |
Ronald Chen |
2009-04-14 |
| 7242660 |
Power control device and method of single base power for optical disk drive |
Ronald Chen |
2007-07-10 |
| 7167421 |
Method for controlling optical pickup head upon switching from following mode to seeking mode |
Keng-Lon Lei |
2007-01-23 |
| 6934234 |
Calibration method for slice level of zero cross signal and method of producing track-crossing signal |
— |
2005-08-23 |