G11B 11/10578
Servo format
Official title: {Servo format, e.g. prepits, guide tracks, pilot signals}
G11B11/10578 (Servo format) appears on 303 US grants and 162 published applications in this corpus.
Search patents in G11B- Granted patents
- 303
- Published applications
- 162
- Assignees
- 58
- Inventors
- 355
- Latest grant
- 22 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 13 | 0 |
| 1996 | 14 | 0 |
| 1997 | 13 | 0 |
| 1998 | 16 | 0 |
| 1999 | 15 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 11 |
| 2002 | 28 | 29 |
| 2003 | 19 | 17 |
| 2004 | 20 | 20 |
| 2005 | 11 | 34 |
| 2006 | 30 | 7 |
| 2007 | 15 | 11 |
| 2008 | 12 | 8 |
| 2009 | 7 | 11 |
| 2010 | 16 | 5 |
| 2011 | 6 | 3 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Phase locking multiple clocks of different frequencies22 Aug 2023US 11,735,220 B2Seagate Technology LLC
- Method and apparatus for multi-channel servo demodulation30 Apr 2019US 10,276,198 B1Marvell International Ltd.
- Data storage device extending servo burst field by alternating servo field processing during writes25 Dec 2018US 10,163,459 B1Western Digital Technologies, Inc.
- Servo tracking using a single servo writing pass per track for multi sensors17 Oct 2017US 9,792,939 B2Seagate Technology LLC
- Method of writing servo information on a storage medium and arrangement for writing servo information on a storage medium6 Jun 2017US 9,672,862 B2Marvell International Ltd.
- Phase locking multiple clocks of different frequencies29 Jun 2023US 2023/0206951 A1Seagate Technology LLC
- Method of writing servo information on a storage medium and arrangement for writing servor information on a storage medium11 Aug 2016US 2016/0232935 A1Marvell International Ltd.
- Servo tracking using a single servo writing pass per track for multi sensors19 Nov 2015US 2015/0332719 A1Seagate Technology LLC
- Optical recording medium having auxiliary information and reference clock3 Oct 2013US 2013/0258833 A1JVC KENWOOD Corporation
- Optical recording medium having auxiliary information and reference clock25 Oct 2012US 2012/0269049 A1JVC KENWOOD Corporation
Most cited
By later US patents
- Optical disk capable of recording information on both groove and land tracks152US 5,508,995 AMatsushita Electric Industrial Co., Ltd. · 1996
- Method of and apparatus for recording an information signal147US 4,901,300 AU. S. Philips Corporation · 1990
- Optical disk136US 5,383,176 ASharp Kabushiki Kaisha · 1995
- Optical disk recording and reproducing apparatus with data recorded on wobbled grooves and lands112US 5,537,373 AKabushiki Kaisha Kenwood · 1996
- Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus97US 4,949,331 AHitachi, Ltd. · 1990