G11B 20/1407
Code representation depending on a single bit, i.e. where a one is
Official title: {code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol}
G11B20/1407 (Code representation depending on a single bit, i.e. where a one is) appears on 295 US grants and 59 published applications in this corpus.
Search patents in G11B- Granted patents
- 295
- Published applications
- 59
- Assignees
- 141
- Inventors
- 399
- Latest grant
- 9 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 16 | 0 |
| 1978 | 5 | 0 |
| 1979 | 10 | 0 |
| 1980 | 11 | 0 |
| 1981 | 11 | 0 |
| 1982 | 15 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 18 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 13 | 0 |
| 2002 | 6 | 5 |
| 2003 | 5 | 4 |
| 2004 | 7 | 5 |
| 2005 | 4 | 3 |
| 2006 | 6 | 4 |
| 2007 | 2 | 5 |
| 2008 | 4 | 5 |
| 2009 | 4 | 4 |
| 2010 | 3 | 4 |
| 2011 | 5 | 2 |
| 2012 | 3 | 3 |
| 2013 | 5 | 1 |
| 2014 | 2 | 2 |
| 2015 | 4 | 4 |
| 2016 | 2 | 2 |
| 2017 | 3 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 2 | 2 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and apparatus for identifying a mover on a track9 May 2023US 11,643,281 B2Rockwell Automation Technologies, Inc.
- Circuits and methods for optimizing write current waveform for main pole relaxation in perpendicular magnetic recording8 Jun 2021US 11,031,039 B1Headway Technologies, Inc.
- Signal processing apparatus, signal processing method, and program30 Mar 2021US 10,965,307 B2Sony Corporation
- Method and apparatus for identifying a mover on a closed track2 Feb 2021US 10,906,748 B2Rockwell Automation Technologies, Inc.
- Information reproduction apparatus and information reproduction method25 Feb 2020US 10,573,340 B2Nidec Sankyo Corporation
- Method and Apparatus for Identifying a Mover on a Track13 May 2021US 2021/0139251 A1Rockwell Automation Technologies, Inc.
- Signal processing apparatus, signal processing method, and program3 Dec 2020US 2020/0382130 A1Sony Corporation
- Information reproducing device and information reproducing method30 Jan 2020US 2020/0034580 A1Nidec Sankyo Corporation
- Information reproduction apparatus and information reproduction method12 Sep 2019US 2019/0279674 A1Nidec Sankyo Corporation
- Groups of phase invariant codewords25 Apr 2019US 2019/0123765 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Servo synchronization based on a servo synch mark that conflicts with self-clocking encoding algorithms132US 6,934,104 B1Western Digital Technologies, Inc. · 2005
- Signal transducer121US 4,363,040 ACanon Kabushiki Kaisha · 1982
- Demodulation system for digital information115US 3,949,313 ATokyo Magnetic Printing Co., Ltd. · 1976
- Magnetic tape pulse width to digital convertor114US 3,996,586 AThe United States of America as represented by the Secretary of the Navy · 1976
- Digital code reader112US 4,254,441 A1981