G11B 21/04
Automatic feed mechanism producing a progressive transducing traverse of the head in
Official title: Automatic feed mechanism producing a {progressive} transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan {, e.g. by lead-screw (G11B19/20, G11B21/08 and G11B21/10 take precedence)}
G11B21/04 (Automatic feed mechanism producing a progressive transducing traverse of the head in) appears on 105 US grants and 18 published applications in this corpus.
Search patents in G11B- Granted patents
- 105
- Published applications
- 18
- Assignees
- 42
- Inventors
- 162
- Latest grant
- 10 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 4 |
| 2002 | 4 | 6 |
| 2003 | 3 | 2 |
| 2004 | 5 | 3 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Averaged slope timing-based-servo tape-creep detection10 Nov 2020US 10,832,715 B1International Business Machines Corporation
- Data storage device converting disk surface to read-only26 May 2020US 10,665,263 B1Western Digital Technologies, Inc.
- System, device, and method for wireless audio transmission28 May 2019US 10,304,479 B2
- Portable turntable device, system, and method6 Jun 2017US 9,672,844 B2Love Turntable, Inc.
- Portable turntable device, system, and method28 Feb 2017US 9,583,122 B2Love Turntable, Inc.
- System, device, and method for wireless audio transmission24 Jan 2019US 2019/0027166 A1
- Portable turntable device, system, and method4 May 2017US 2017/0125039 A1Love Turntable, Inc.
- Portable turntable device, system, and method26 Jan 2017US 2017/0025134 A1Ernest Turntable, Inc.
- Multi-layered data storage card4 Nov 2004US 2004/0218518 A1Dcard, Inc.
- Layer structure and method of manufacture for optical memory strip (OMS)19 Aug 2004US 2004/0159707 A1Dcard, Inc.
Most cited
By later US patents
- Apparatus and method for providing multimedia data46US 5,630,104 AInternational Business Machines Corporation · 1997
- Multiple user multimedia data server with switch to load time interval interleaved data to plurality of time interval assigned buffers43US 5,594,924 AInternational Business Machines Corporation · 1997
- Multi-disc player32US 4,841,499 APioneer Electronic Corporation · 1989
- Storage of user defined type file data in corresponding select physical format28US 6,035,351 AInternational Business Machines Corporation · 2000
- Disk storage device with spiral data track and incremental error offsets in angularly spaced imbedded concentric servo patterns27US 5,619,387 AInternational Business Machines Corporation · 1997