G11B 20/10222
Clock-related aspects
Official title: {clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation (dedicated sync patterns in the modulation code G11B20/1403)}
G11B20/10222 (Clock-related aspects) appears on 680 US grants and 473 published applications in this corpus.
Search patents in G11B- Granted patents
- 680
- Published applications
- 473
- Assignees
- 157
- Inventors
- 981
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 8 | 1 |
| 2002 | 10 | 10 |
| 2003 | 11 | 16 |
| 2004 | 12 | 22 |
| 2005 | 6 | 18 |
| 2006 | 14 | 27 |
| 2007 | 20 | 47 |
| 2008 | 27 | 38 |
| 2009 | 26 | 52 |
| 2010 | 42 | 51 |
| 2011 | 71 | 40 |
| 2012 | 56 | 41 |
| 2013 | 60 | 18 |
| 2014 | 60 | 18 |
| 2015 | 56 | 24 |
| 2016 | 25 | 15 |
| 2017 | 17 | 6 |
| 2018 | 19 | 11 |
| 2019 | 16 | 4 |
| 2020 | 12 | 6 |
| 2021 | 15 | 4 |
| 2022 | 6 | 3 |
| 2023 | 2 | 0 |
| 2024 | 2 | 0 |
| 2025 | 4 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Preamplifier for a writer of a hard disk drive with fast rise time6 Oct 2026US 12,755,760 B1Marvell Asia Pte Ltd
- Digital timing recovery in hard disk drive read channel for preamble reduction11 Aug 2026US 12,706,119 B1Marvell Asia Pte Ltd
- Magnetic disk apparatus and method25 Mar 2025US 12,260,888 B1Kabushiki Kaisha Toshiba
- Digital timing recovery in hard disk drive read channel for preamble reduction18 Mar 2025US 12,254,899 B1Marvell Asia Pte Ltd
- Rotation filter for digital timing recovery in hard disk drive read channel11 Mar 2025US 12,249,349 B1Marvell Asia Pte Ltd
- Magnetic disk apparatus and method20 Mar 2025US 2025/0095680 A1Kabushiki Kaisha Toshiba
- Scalable storage device15 Sep 2022US 2022/0293132 A9Seagate Technology LLC
- Data group playback device and system and method for same26 May 2022US 2022/0165305 A1Musicmob Co., Ltd.
- On head microelectronics for write synchronization10 Feb 2022US 2022/0044700 A1Seagate Technology LLC
- Method and apparatus for modulating a laser power signal during heat-assisted magnetic recording30 Dec 2021US 2021/0407546 A1Seagate Technology LLC
Most cited
By later US patents
- Disk drive comprising a dual read element and delay circuitry to improve read signal207US 8,139,301 B1Western Digital (Fremont), LLC · 2012
- Servo writing a disk drive by integrating a spiral track read signal169US 7,301,717 B1Western Digital Technologies, Inc. · 2007
- Method and system for pulsing EAMR disk drives166US 8,289,821 B1Western Digital (Fremont), LLC · 2012
- Disk drive comprising a dual read element and delay circuitry to improve read signal156US 8,514,506 B1Western Digital (Fremont), LLC · 2013
- Detecting a servo address mark (SAM) in a servo field sync-up operation143US 8,159,768 B1Western Digital Technologies, Inc. · 2012