G11B 20/10194
Using predistortion during writing
Official title: {using predistortion during writing (G11B20/10055 takes precedence)}
G11B20/10194 (Using predistortion during writing) appears on 198 US grants and 110 published applications in this corpus.
Search patents in G11B- Granted patents
- 198
- Published applications
- 110
- Assignees
- 78
- Inventors
- 349
- Latest grant
- 2 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 16 | 4 |
| 2002 | 8 | 10 |
| 2003 | 8 | 6 |
| 2004 | 10 | 5 |
| 2005 | 3 | 13 |
| 2006 | 12 | 20 |
| 2007 | 9 | 9 |
| 2008 | 6 | 12 |
| 2009 | 12 | 10 |
| 2010 | 12 | 8 |
| 2011 | 13 | 3 |
| 2012 | 11 | 4 |
| 2013 | 5 | 0 |
| 2014 | 5 | 2 |
| 2015 | 3 | 1 |
| 2016 | 2 | 2 |
| 2017 | 3 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetic disk device and parameter setting method of magnetic disk device2 Jan 2024US 11,862,193 B2Kabushiki Kaisha Toshiba
- Circuits and methods for modifying the write current waveform to improve track density in HDD27 Apr 2021US 10,991,391 B1Headway Technologies, Inc.
- MUX select control of two phase shifted data in write precompensation28 Aug 2018US 10,062,407 B1Marvell International Ltd.
- Obtaining a predetermined phase shift in data using different write precompensation associated with different NRZI patterns28 Nov 2017US 9,830,942 B1Seagate Technology LLC
- Precompensation based on nearby data12 Sep 2017US 9,761,268 B1Seagate Technology LLC
- Magnetic disk device and parameter setting method of magnetic disk device27 Jul 2023US 2023/0238031 A1Kabushiki Kaisha Toshiba
- Information recording and reproducing apparatus and information recording and reproducing method22 Sep 2016US 2016/0275981 A1Panasonic Intellectual Property Management Co., Ltd.
- Thermal-assisted magnetic recording device capable of writing magnetic patterns on lower multi-step driving signals4 Feb 2016US 2016/0035383 A1Kabushiki Kaisha Toshiba
- Self-controlled laser pulsing for thermally assisted recording21 May 2015US 2015/0138937 A1HGST Netherlands B. V.
- Write precompensation for head misalignment31 Jul 2014US 2014/0211339 A1Seagate Technology LLC
Most cited
By later US patents
- Apparatus for recording and reproducing data on a disk105US 5,490,126 AMatsushita Electric Industrial Co., Ltd. · 1996
- Disk drive compensating for track squeeze by writing non-circular servo tracks99US 8,749,904 B1Western Digital Technologies, Inc. · 2014
- Multiplexed encoder and decoder with address mark generation/check and precompensation circuits85US 5,028,922 AIndustrial Technology Research Institute · 1991
- Method of recording and reproducing data on a disk81US 5,636,194 AMatsushita Electric Industrial Co., Ltd. · 1997
- Method for synchronizing the write current for magnetic recording with the bit islands on discrete bit patterned media63US 6,738,207 B1Seagate Technology LLC · 2004