G11B 27/26
By photoelectric detection
Official title: by photoelectric detection, e.g. of sprocket holes
G11B27/26 (By photoelectric detection) appears on 42 US grants and 5 published applications in this corpus.
Search patents in G11B- Granted patents
- 42
- Published applications
- 5
- Assignees
- 26
- Inventors
- 58
- Latest grant
- 13 Oct 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical identification record system13 Oct 2020US 10,802,798 B1Ampus Technology Co., Ltd.
- Method for editing source video to slow motion or fast motion on the recordable media19 Apr 2011US 7,929,828 B1Thomson Licensing
- Information recording apparatus and an information recording system26 May 2009US 7,539,099 B2Ricoh Company, Ltd.
- Optical disc reproduction apparatus10 May 2005US 6,891,785 B2Matsushita Electric Industrial Co., Ltd.
- Method and apparatus for editing in a forward or reverse direction on a rewriteable disc media15 Feb 2005US 6,856,755 B1Thomson Licensing
- Information recording apparatus and an information recording system24 Mar 2005US 2005/0063268 A1Ricoh Company, Ltd.
- Methods and apparatus for logical triggering30 Dec 2004US 2004/0264323 A1
- Optical disc reproduction apparatus28 Nov 2002US 2002/0176340 A1Matsushita Electric Industrial Co., Ltd.
- Optical servo system for a tape drive15 Aug 2002US 2002/0109928 A1Storage Technology Corporation
- Optical servo system for a tape drive5 Jul 2001US 2001/0006437 A1Storage Technology Corporation
Most cited
By later US patents
- System for encoding sound recordings for high-density storage and high-speed transfers304US 4,937,807 APersonics Corporation · 1990
- Image reproducing apparatus89US 5,652,618 AMinolta Camera Kabushiki Kaisha · 1997
- Optical servo system for a tape drive48US 6,084,740 AStorage Technology Corporation · 2000
- Image reproducing apparatus43US 5,541,644 AMinolta Camera Kabushiki Kaisha · 1996
- Magazine-housed disk player37US 4,899,326 APioneer Electronic Corporation · 1990