G11B 2007/0919
Critical angle methods
Official title: {Critical angle methods}
G11B2007/0919 (Critical angle methods) appears on 47 US grants and 0 published applications in this corpus.
Search patents in G11B- Granted patents
- 47
- Published applications
- 0
- Assignees
- 14
- Inventors
- 36
- Latest grant
- 25 May 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for moving carriage assembly from initial position to target position and optical disc system including same25 May 2004US 6,741,529 B1Discovision Associates
- Optical actuator assembly with lens position sensor for recording or playback11 Mar 2003US 6,532,199 B1Discovision Associates
- Analog to digital converter assembly for normalizing servo error signals and multiplexing reference voltage inputs and digital outputs and improved optical drive system including same9 Jul 2002US 6,418,097 B1Discovision Associates
- Optical disc system having current monitoring circuit with improved bias coil assembly and controller for laser driver and method for operating same13 Nov 2001US 6,317,391 B1Discovision Associates
- Optical disc system including current monitoring circuit assembly having controller with improved optics module and laser driver and method for operating same21 Aug 2001US 6,278,665 B1Discovision Associates
No published applications in this class yet.
Most cited
By later US patents
- Method and apparatus for moving carriage assembly from initial position to target position and optical disc system including same92US 6,741,529 B1Discovision Associates · 2004
- Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal84US 5,729,511 ADiscovision Associates · 1998
- Servo control system for information storage device79US 5,875,158 ADiscovision Associates · 1999
- Isolation apparatus for use in disc drive system to mitigate effects of undesired mechanical forces and disc drive system including same73US 6,122,232 ADiscovision Associates · 2000
- Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same62US 5,748,578 ADiscovision Associates · 1998