H04N 9/793
For controlling the level of the chrominance signal
Official title: for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits
H04N9/793 (For controlling the level of the chrominance signal) appears on 132 US grants and 28 published applications in this corpus.
Search patents in H04N- Granted patents
- 132
- Published applications
- 28
- Assignees
- 46
- Inventors
- 232
- Latest grant
- 20 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 3 | 2 |
| 2016 | 1 | 7 |
| 2017 | 4 | 1 |
| 2018 | 4 | 1 |
| 2019 | 1 | 4 |
| 2020 | 3 | 3 |
| 2021 | 4 | 2 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Auto white balance adjusting method and auto white balance adjusting system for calibrating images by using dual color spaces20 Dec 2022US 11,533,462 B2Weltrend Semiconductor Inc.
- Video display apparatus and video display method19 Oct 2021US 11,153,466 B2Panasonic Intellectual Property Management Co., Ltd.
- Reproduction apparatus, reproduction method, program, and recording medium19 Oct 2021US 11,153,548 B2Sony Corporation
- Method for determining the articulation angle of a combination29 Jun 2021US 11,048,962 B2Volkswagen Aktiengesellschaft
- Video display system and video display method8 Jun 2021US 11,032,448 B2Panasonic Intellectual Property Management Co., Ltd.
- Auto White Balance Adjusting Method and Auto White Balance Adjusting System for Calibrating Images by Using Dual Color Spaces13 Oct 2022US 2022/0329769 A1Weltrend Semiconductor Inc.
- Video content medium and video reproduction apparatus28 Oct 2021US 2021/0337174 A1Mitsubishi Electric Corporation
- Method for Determining the Articulation Angle of a Combination3 Jun 2021US 2021/0166051 A1Volkswagen Aktiengesellschaft
- Reproduction apparatus, reproduction method, program, and recording medium12 Nov 2020US 2020/0358995 A1Sony Corporation
- Reproduction device, reproduction method, and recording medium23 Jul 2020US 2020/0236335 A1Sony Corporation
Most cited
By later US patents
- Digital-to-analog video encoder with novel equalization101US 5,844,629 AAnalog Devices, Inc. · 1998
- Gain correction system for videodisc player apparatus55US 4,370,679 ADiscovision Associates · 1983
- Dual deck videocassette recorder system29US 5,124,807 AGo-Video, Inc. · 1992
- Apparatus and method of high vision signal recording using expansion techniques and digital drop-out compensation26US 5,283,659 APioneer Electronic Corporation · 1994
- Recording and reproducing apparatus for a video tape recorder25US 4,613,912 AHitachi, Ltd. · 1986