G11B 2007/0924
Skewed beams methods
Official title: {Skewed beams methods (using an angled beam, i.e. a beam which is reflected from the disc at an angle different from 90°)}
G11B2007/0924 (Skewed beams methods) appears on 24 US grants and 1 published applications in this corpus.
Search patents in G11B- Granted patents
- 24
- Published applications
- 1
- Assignees
- 12
- Inventors
- 42
- Latest grant
- 24 Oct 2000
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Autofocus system24 Oct 2000US 6,137,580 ACreo Inc.
- Self correcting recording reproducing apparatus for an optical card24 Sep 1996US 5,559,773 AOMRON Corporation
- Integrated optical head structure8 Jun 1993US 5,218,584 AInternational Business Machines Corporation
- Optical card recording/reproducing apparatus20 Oct 1992US 5,157,644 AOlympus Optical Co., Ltd.
- Data recording and reproducing apparatus for an optical card16 Apr 1991US 5,008,552 ADai Nippon Insatsu Kabushiki Kaisha
Most cited
By later US patents
- Apparatus for optically reading information from a record carrier54US 4,253,723 ASony Corporation · 1981
- Apparatus for optically reading signal information recorded on a reflective record medium surface40US 4,100,577 ASony Corporation · 1978
- Autofocus circuit for a videodisc playback device32US 3,974,327 AU. S. Philips Corporation · 1976
- Opto-electronic system for determining a deviation between the actual position of a radiation-reflecting plane in an optical imaging system and the desired position of said plane30US 3,992,574 AU. S. Philips Corporation · 1976
- Opto-electronic focus detection system24US 3,969,575 AU. S. Philips Corporation · 1976