G11B 20/06
Angle-modulation recording or reproducing
G11B20/06 (Angle-modulation recording or reproducing) appears on 62 US grants and 1 published applications in this corpus.
Search patents in G11B- Granted patents
- 62
- Published applications
- 1
- Assignees
- 33
- Inventors
- 112
- Latest grant
- 15 Sep 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Signal detecting method and apparatus and information reproducing apparatus and method15 Sep 2009US 7,590,040 B2Pioneer Corporation
- Reproduction device23 Jan 2001US 6,178,288 B1Matsushita Electric Industrial Co., Ltd.
- Apparatus for demodulating digital FM signal in an optical disc device27 Jun 2000US 6,081,493 ASony Corporation
- Apparatus for demodulating a digital FM signal which normally has signal inversions at data bit boundaries25 May 1999US 5,907,528 ASony Corporation
- Apparatus for demodulating digital FM signal in an optical disc device17 Nov 1998US 5,838,649 ASony Corporation
Most cited
By later US patents
- Method and apparatus for reading and writing audio and digital data on a magnetic tape80US 5,619,383 AGemstar Development Corporation · 1997
- Optical information recording apparatus37US 4,283,785 AHitachi, Ltd. · 1981
- Stereo/multivoice recording and reproducing video tape recorder including a decoder developing a switch control signal26US 5,337,196 ASamsung Electronics Co., Ltd. · 1994
- Method and apparatus for high-density recording and reproduction24US 4,416,002 AHitachi, Ltd. · 1983
- Control program signal demodulating device22US 4,630,231 AVictor Company of Japan, Ltd. · 1986