G11B 2020/1476
Synchronisation patterns
Official title: {Synchronisation patterns; Coping with defects thereof}
G11B2020/1476 (Synchronisation patterns) appears on 99 US grants and 54 published applications in this corpus.
Search patents in G11B- Granted patents
- 99
- Published applications
- 54
- Assignees
- 58
- Inventors
- 163
- Latest grant
- 10 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 6 |
| 2004 | 5 | 1 |
| 2005 | 3 | 4 |
| 2006 | 3 | 4 |
| 2007 | 4 | 7 |
| 2008 | 4 | 4 |
| 2009 | 3 | 8 |
| 2010 | 5 | 2 |
| 2011 | 5 | 4 |
| 2012 | 4 | 3 |
| 2013 | 6 | 1 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 2 | 1 |
| 2017 | 2 | 3 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Synchronization signal (Sync Mark) detection using multi-frequency sinusoidal (MFS) signal-based filtering10 Oct 2023US 11,784,785 B2Avago Technologies International Sales Pte. Limited
- Optical information recording device and optical information recording method8 May 2018US 9,966,106 B2Hitachi Consumer Electronics Co., Ltd.
- Encoding information on tape using write offset gaps17 Apr 2018US 9,947,355 B2International Business Machines Corporation
- Systems and methods for missed media sector alignment10 Oct 2017US 9,786,320 B2Avago Technologies General IP (Singapore) Pte. Ltd.
- Encoding information on tape using write offset gaps11 Apr 2017US 9,620,157 B2International Business Machines Corporation
- Synchronization Signal (Sync Mark) Detection Using Multi-Frequency Sinusoidal (MFS) Signal-Based Filtering10 Aug 2023US 2023/0254109 A1Broadcom International Pte. Ltd.
- Optical information recording device and optical information recording method1 Feb 2018US 2018/0033461 A1Hitachi Consumer Electronics Co., Ltd.
- Systems and Methods for Missed Media Sector Alignment20 Jul 2017US 2017/0206926 A1Avago Technologies General IP (Singapore) Pte. Ltd.
- Encoding information on tape using write offset gaps8 Jun 2017US 2017/0162219 A1International Business Machines Corporation
- Encoding information on tape using write offset gaps2 Mar 2017US 2017/0061996 A1International Business Machines Corporation
Most cited
By later US patents
- Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization180US 6,009,549 ACirrus Logic, Inc. · 1999
- Thermal asperity compensation using multiple sync marks for retroactive and split segment data synchronization in a magnetic disk storage system155US 5,844,920 ACirrus Logic, Inc. · 1998
- Disk drive comprising preamble aligned zoned servo sectors117US 8,116,023 B1Western Digital Technologies, Inc. · 2012
- Locating an initial servo track in order to servo write a disk drive from spiral tracks113US 7,457,071 B1Western Digital Technologies, Inc. · 2008
- Disk drive biasing sync pattern of an extended sync mark111US 8,619,385 B1Western Digital Technologies, Inc. · 2013