G11B 20/00007
Time or data compression or expansion
Official title: {Time or data compression or expansion (audio compression based on psychoacoustics G10L19/00; data processing for reproducing audio data at different playback speeds G10L21/04; video compression H04N19/00; data compression per se H03M7/30)}
G11B20/00007 (Time or data compression or expansion) appears on 1,349 US grants and 901 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,349
- Published applications
- 901
- Assignees
- 348
- Inventors
- 1,894
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 9 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 15 | 0 |
| 1993 | 19 | 0 |
| 1994 | 30 | 0 |
| 1995 | 44 | 0 |
| 1996 | 45 | 0 |
| 1997 | 64 | 0 |
| 1998 | 56 | 0 |
| 1999 | 47 | 0 |
| 2000 | 64 | 0 |
| 2001 | 58 | 36 |
| 2002 | 57 | 98 |
| 2003 | 64 | 69 |
| 2004 | 58 | 59 |
| 2005 | 33 | 67 |
| 2006 | 63 | 74 |
| 2007 | 46 | 60 |
| 2008 | 45 | 76 |
| 2009 | 46 | 64 |
| 2010 | 43 | 50 |
| 2011 | 59 | 33 |
| 2012 | 56 | 22 |
| 2013 | 35 | 12 |
| 2014 | 40 | 39 |
| 2015 | 39 | 29 |
| 2016 | 17 | 17 |
| 2017 | 19 | 21 |
| 2018 | 19 | 14 |
| 2019 | 17 | 14 |
| 2020 | 15 | 9 |
| 2021 | 13 | 9 |
| 2022 | 8 | 11 |
| 2023 | 10 | 4 |
| 2024 | 7 | 10 |
| 2025 | 8 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Imaging device and imaging system8 Sep 2026US 12,731,619 B2Panasonic Intellectual Property Management Co., Ltd.
- Method, apparatus, storage media and program product for video decoding10 Mar 2026US 12,574,535 B2Beijing Zitiao Network Technology Co., Ltd.
- System on chip, method for operating thereof and video system6 Jan 2026US 12,518,790 B2Samsung Electronics Co., Ltd.
- Communication device and operating method9 Dec 2025US 12,494,795 B2NXP B. V.
- Video processing circuit and associated video processing method17 Jun 2025US 12,334,109 B2Sigmastar Technology Ltd.
- System on chip, method for operating thereof and video system4 Sep 2025US 2025/0279120 A1Samsung Electronics Co., Ltd.
- Source classification using hdmi audio metadata24 Jul 2025US 2025/0238462 A1The Nielsen Company (US), LLC
- System to dispatch video decoding to dedicated hardware resources24 Apr 2025US 2025/0133266 A1Genetec Inc.
- Imaging device and imaging system6 Mar 2025US 2025/0078875 A1Panasonic Intellectual Property Management Co., Ltd.
- Image capture device, recording device, and display control device5 Dec 2024US 2024/0404557 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Connected audio and other media objects859US 6,505,160 B1Digimarc Corporation · 2003
- Apparatus for distributing subscription and on-demand audio programming729US 5,557,541 AInformation Highway Media Corporation · 1996
- Low power system and method for playing compressed audio data437US 6,332,175 B1Compaq Computer Corporation · 2001
- Image steganography system featuring perceptually adaptive and globally scalable signal embedding417US 5,748,763 ADigimarc Corporation · 1998
- Optical disc, recording apparatus, and computer-readable recording medium338US 6,078,727 AMatsushita Electric Industrial Co., Ltd. · 2000