G11B 20/00949
Said intentional errors occurring due to bad sectors, which are either physically
Official title: {said intentional errors occurring due to bad sectors, which are either physically destroyed or which are declared defective in the defect management information}
G11B20/00949 (Said intentional errors occurring due to bad sectors, which are either physically) appears on 35 US grants and 29 published applications in this corpus.
Search patents in G11B- Granted patents
- 35
- Published applications
- 29
- Assignees
- 27
- Inventors
- 55
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 5 |
| 2007 | 1 | 3 |
| 2008 | 0 | 10 |
| 2009 | 3 | 1 |
| 2010 | 2 | 0 |
| 2011 | 1 | 1 |
| 2012 | 4 | 1 |
| 2013 | 3 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Method of performing read/write process on recording medium, parameter adjustment method, storage device, computer system, and storage medium employing the methods29 Nov 2016US 9,508,382 B2Seagate Technology LLC
- Apparatus for and a method of copy-protecting a content carrying recording medium8 Apr 2014US 8,695,103 B2Rovi Solutions Corporation
- Magnetic disk device5 Sep 2024US 2024/0296869 A1Kabushiki Kaisha Toshiba
- Method of performing read/write process on recording medium, parameter adjustment method, storage device, computer system, and storage medium employing the methods13 Sep 2018US 2018/0261248 A1Seagate Technology LLC
- Method of performing read/write process on recording medium, parameter adjustment method, storage device, computer system, and storage medium employing the methods16 Feb 2017US 2017/0047092 A1Seagate Technology LLC
- Method of performing read/write process on recording medium, parameter adjustment method, storage device, computer system, and storage medium employing the methods19 Apr 2012US 2012/0092975 A1Samsung Electronics Co., Ltd.
- Optical recording medium, apparatus and method of recording/reproducing data thereon/therefrom, and computer readable recording medium storing program to perform the method1 Sep 2011US 2011/0214140 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Copyprotecting system for software protection235US 4,584,641 A1986
- Hardware key-on-disk system for copy-protecting magnetic storage media230US 4,577,289 AInternational Business Machines Corporation · 1986
- Method for utilizing medium nonuniformities to minimize unauthorized duplication of digital information183US 5,412,718 AInstitute of Systems Science · 1995
- Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus119US 5,418,852 AFujitsu Limited · 1995
- Cd-prom98US 5,563,947 AElonex I. P. Holdings, Ltd. · 1996