G11B 19/12
By sensing distinguishing features of or on records
Official title: by sensing distinguishing features of {or on} records, e.g. diameter {end mark}
G11B19/12 (By sensing distinguishing features of or on records) appears on 1,713 US grants and 1,268 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,713
- Published applications
- 1,268
- Assignees
- 270
- Inventors
- 2,399
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 10 | 0 |
| 1988 | 15 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 17 | 0 |
| 1992 | 26 | 0 |
| 1993 | 18 | 0 |
| 1994 | 28 | 0 |
| 1995 | 37 | 0 |
| 1996 | 32 | 0 |
| 1997 | 65 | 0 |
| 1998 | 94 | 0 |
| 1999 | 89 | 0 |
| 2000 | 101 | 0 |
| 2001 | 90 | 40 |
| 2002 | 100 | 148 |
| 2003 | 80 | 112 |
| 2004 | 74 | 145 |
| 2005 | 65 | 172 |
| 2006 | 115 | 157 |
| 2007 | 103 | 136 |
| 2008 | 87 | 134 |
| 2009 | 94 | 82 |
| 2010 | 90 | 52 |
| 2011 | 85 | 33 |
| 2012 | 75 | 21 |
| 2013 | 43 | 11 |
| 2014 | 13 | 9 |
| 2015 | 12 | 5 |
| 2016 | 3 | 1 |
| 2017 | 2 | 2 |
| 2018 | 4 | 1 |
| 2019 | 2 | 0 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- G11B 19/122Involving the detection of an identification or authentication mark438
- G11B 19/125Involving the detection of carrier data format152
- G11B 19/128Involving the detection of track pitch or recording density61
- G11B 19/127Involving detection of the number of sides51
- G11B 19/124Involving the detection of diameter of disks22
- G11B 2019/121By photo-electric sensingIndexing code3
Recent patents
- Data storage device configuration using mutual information29 Jul 2025US 12,374,365 B2Western Digital Technologies, Inc.
- Modulation code and ECC rate optimization using symbol context mutual information27 May 2025US 12,315,534 B2Western Digital Technologies, Inc.
- Vinyl record with integrated authenticity11 Feb 2025US 12,223,981 B2Citizen Digital Inc.
- Digital information recording apparatus, reproducing apparatus and transmitting apparatus1 Dec 2020US 10,854,237 B2Maxell, Ltd.
- Disc device6 Oct 2020US 10,796,720 B2Panasonic Intellectual Property Management Co., Ltd.
- Vinyl record with integrated authenticity5 Jun 2025US 2025/0182789 A1Citizen Digital Inc.
- Data Storage Device Configuration Using Mutual Information8 Aug 2024US 2024/0265943 A1Western Digital Technologies, Inc.
- Modulation Code and ECC Rate Optimization Using Symbol Context Mutual Information8 Aug 2024US 2024/0265948 A1Western Digital Technologies, Inc.
- Vinyl record with integrated authenticity2 Feb 2023US 2023/0032976 A1Citizen Digital Inc.
- Digital information recording apparatus, reproducing apparatus and transmitting apparatus8 Apr 2021US 2021/0104258 A1Maxell, Ltd.
Most cited
By later US patents
- Method and system for automatically tracking a zoomed video image730US 5,610,653 A1997
- Seamless transmission of non-sequential video segments488US 5,434,678 A1995
- Advertisement subsidized video-on-demand system473US 6,553,178 B22003
- System for integrating video and communications421US 5,684,918 A1997
- Playing a Video Responsive to a comparison of two sets of Content Preferences347US 6,038,367 A2000