H04N 9/77
Circuits for processing the brightness signal and the chrominance signal relative to
Official title: Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase (circuits for matrixing H04N9/67)
H04N9/77 (Circuits for processing the brightness signal and the chrominance signal relative to) appears on 1,113 US grants and 799 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,113
- Published applications
- 799
- Assignees
- 368
- Inventors
- 1,683
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 10 | 0 |
| 1980 | 11 | 0 |
| 1981 | 10 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 14 | 0 |
| 1985 | 15 | 0 |
| 1986 | 17 | 0 |
| 1987 | 26 | 0 |
| 1988 | 13 | 0 |
| 1989 | 22 | 0 |
| 1990 | 15 | 0 |
| 1991 | 22 | 0 |
| 1992 | 24 | 0 |
| 1993 | 24 | 0 |
| 1994 | 22 | 0 |
| 1995 | 20 | 0 |
| 1996 | 24 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 12 | 0 |
| 2000 | 8 | 0 |
| 2001 | 13 | 2 |
| 2002 | 9 | 12 |
| 2003 | 6 | 9 |
| 2004 | 10 | 19 |
| 2005 | 9 | 30 |
| 2006 | 17 | 42 |
| 2007 | 17 | 25 |
| 2008 | 31 | 31 |
| 2009 | 20 | 32 |
| 2010 | 20 | 33 |
| 2011 | 20 | 26 |
| 2012 | 44 | 13 |
| 2013 | 28 | 19 |
| 2014 | 30 | 29 |
| 2015 | 29 | 40 |
| 2016 | 32 | 31 |
| 2017 | 50 | 47 |
| 2018 | 38 | 62 |
| 2019 | 57 | 69 |
| 2020 | 69 | 54 |
| 2021 | 46 | 42 |
| 2022 | 39 | 48 |
| 2023 | 37 | 34 |
| 2024 | 41 | 20 |
| 2025 | 27 | 17 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image processing method and image processing device for enhancing image processing efficiency29 Sep 2026US 12,750,502 B2Realtek Semiconductor Corp.
- Signal reshaping for high dynamic range signals11 Aug 2026US 12,707,100 B2Dolby Laboratories Licensing Corporation
- Chroma adjustment method, electronic device and readable storage medium21 Jul 2026US 12,689,718 B2Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Systems and methods of processing image data from an entropy decoder23 Jun 2026US 12,666,044 B2QUALCOMM Incorporated
- Display apparatus correcting image in consideration of user's perceptual distortion5 May 2026US 12,620,335 B2Samsung Electronics Co., Ltd.
- Methods for processing and transferring image data and image processing systems8 Oct 2026US 2026/0310289 A1Varjo Technologies Oy
- Hdr range adaptation luminance and color processing3 Sep 2026US 2026/0261639 A1Koninklijke Philips N. V.
- Apparatus and method for processing vision information by using image sensor6 Aug 2026US 2026/0230698 A1Samsung Electronics Co., Ltd.
- Signal reshaping for high dynamic range signals25 Jun 2026US 2026/0181191 A1Dolby Laboratories Licensing Corporation
- Signal reshaping for high dynamic range signals18 Jun 2026US 2026/0172610 A1Dolby Laboratories Licensing Corporation
Most cited
By later US patents
- YCBCR pulsed illumination scheme in a light deficient environment347US 9,516,239 B2DePuy Synthes Products, Inc. · 2016
- Trick play data indentification methods and apparatus for use with digital video recording and playback devices76US 5,687,275 AHitachi America, Ltd. · 1997
- Color correction with a lookup table73US 10,462,439 B2Vid Scale, Inc. · 2019
- Encoding, decoding, and representing high dynamic range images72US 8,248,486 B1Dolby Laboratories Licensing Corporation · 2012
- Comb filter for television signals having adaptive features58US 4,050,084 ACBS Inc. · 1977