G11B 15/4736
Using auxiliary signals, i.e. pilot signals
Official title: {using auxiliary signals, i.e. pilot signals}
G11B15/4736 (Using auxiliary signals, i.e. pilot signals) appears on 14 US grants and 0 published applications in this corpus.
Search patents in G11B- Granted patents
- 14
- Published applications
- 0
- Assignees
- 8
- Inventors
- 27
- Latest grant
- 26 Oct 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and apparatus for determining and using head parameters in a helical scan recorder26 Oct 1999US 5,973,875 AExabyte Corporation
- Helical scan data recording and playback method and apparatus wherein reference helical tracks preceding data recording area on magnetic tape are played back before recording or playback of target data10 Aug 1999US 5,936,791 AHitachi, Ltd.
- Data recording and playback apparatus using a helical scan system with magnetic head for recording and playing back pattern signal for tracking in tracking area within helical track7 Apr 1998US 5,737,146 AHitachi, Ltd.
- Method and apparatus for determing desired rotational velocity of take-up reel for helical scan recorder31 Mar 1998US 5,734,518 AExabyte Corporation
- Method of making an arcuate scan tape drive24 Mar 1998US 5,729,890 ASeagate Technology LLC
No published applications in this class yet.
Most cited
By later US patents
- Rotary head type magnetic recording and reproducing apparatus and method of producing tracking control signals therefor20US 4,843,493 AHitachi, Ltd. · 1989
- Arcuate scan tape drive14US 5,585,978 AConner Peripherals, Inc. · 1996
- Tracking control system for magnetic video recording and/or reproducing apparatus with tracking signal positions staggered with respect to the positions of tracking signals on adjacent tracks10US 4,530,012 AVictor Company of Japan, Ltd. · 1985
- Method of making an arcuate scan tape drive5US 5,729,890 ASeagate Technology LLC · 1998
- Method and apparatus for determining and using head parameters in a helical scan recorder5US 5,973,875 AExabyte Corporation · 1999