H04N 5/20
Circuitry for controlling amplitude response
H04N5/20 (Circuitry for controlling amplitude response) appears on 1,582 US grants and 1,169 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,582
- Published applications
- 1,169
- Assignees
- 469
- Inventors
- 2,443
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 11 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 12 | 0 |
| 1982 | 8 | 0 |
| 1983 | 18 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 13 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 23 | 0 |
| 1990 | 12 | 0 |
| 1991 | 19 | 0 |
| 1992 | 27 | 0 |
| 1993 | 38 | 0 |
| 1994 | 30 | 0 |
| 1995 | 30 | 0 |
| 1996 | 33 | 0 |
| 1997 | 24 | 0 |
| 1998 | 48 | 0 |
| 1999 | 39 | 0 |
| 2000 | 24 | 0 |
| 2001 | 28 | 9 |
| 2002 | 42 | 50 |
| 2003 | 37 | 54 |
| 2004 | 29 | 42 |
| 2005 | 38 | 74 |
| 2006 | 56 | 72 |
| 2007 | 31 | 75 |
| 2008 | 53 | 65 |
| 2009 | 43 | 84 |
| 2010 | 53 | 70 |
| 2011 | 51 | 54 |
| 2012 | 97 | 45 |
| 2013 | 59 | 22 |
| 2014 | 58 | 31 |
| 2015 | 29 | 41 |
| 2016 | 33 | 45 |
| 2017 | 46 | 55 |
| 2018 | 42 | 47 |
| 2019 | 63 | 54 |
| 2020 | 54 | 54 |
| 2021 | 46 | 43 |
| 2022 | 38 | 20 |
| 2023 | 30 | 28 |
| 2024 | 22 | 16 |
| 2025 | 14 | 9 |
| 2026 | 15 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Adaptive transfer function for video encoding and decoding15 Sep 2026US 12,739,397 B2Apple Inc.
- Video processing method, video processing device, and recording medium1 Sep 2026US 12,726,585 B2Panasonic Intellectual Property Management Co., Ltd.
- Learning apparatus, moving image generating apparatus, method of generating learned model, moving image generating method, and program18 Aug 2026US 12,711,588 B2Sony Interactive Entertainment Inc.
- Image processing apparatus and method of operating the same16 Jun 2026US 12,657,675 B2Samsung Electronics Co., Ltd.
- Video display device and projector2 Jun 2026US 12,647,543 B2Maxell, Ltd.
- Dynamic tone mapping6 Aug 2026US 2026/0228870 A1Roku, Inc.
- Video processing method, display device, and storage medium16 Jul 2026US 2026/0203880 A1Honor Device Co., Ltd.
- Image brightness adjustment for perceptually inform electrical to optical transfer function16 Jul 2026US 2026/0205713 A1Koninklijke Philips N. V.
- Transmission apparatus, method of transmitting image data in high dynamic range, reception apparatus, method of receiving image data in high dynamic range, and program2 Jul 2026US 2026/0189672 A1Saturn Licensing LLC
- Transmission device, transmission method, reception device, reception method, display device, and display method25 Jun 2026US 2026/0181194 A1Sony Group Corporation
Most cited
By later US patents
- Image sensing apparatus218US 6,627,896 B1Canon Kabushiki Kaisha · 2003
- Method and apparatus for sharpening an image by scaling elements of a frequency-domain representation199US 6,421,468 B1Seiko Epson Corporation · 2002
- Video signal processor for detecting flesh tones in am image175US 5,488,429 AMitsubishi Denki Kabushiki Kaisha · 1996
- Correcting non-uniformity in displays167US 6,285,349 B1Intel Corporation · 2001
- Integrated television and video cassette recorder system159US 5,940,572 ADaewoo Electronics Co., Ltd. · 1999