H04N 23/87
For reinsertion of dc or slowly varying components of colour signals
Official title: for reinsertion of DC or slowly varying components of colour signals
H04N23/87 (For reinsertion of dc or slowly varying components of colour signals) appears on 6 US grants and 5 published applications in this corpus.
Search patents in H04N- Granted patents
- 6
- Published applications
- 5
- Assignees
- 8
- Inventors
- 18
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Suppression of clipping artifacts from color conversion29 Oct 2024US 12,131,504 B2Texas Instruments Incorporated
- Image signal processing unit for amplifying signal level of effective pixel region and method24 Aug 2010US 7,782,368 B2Fujitsu Semiconductor Limited
- Level difference correcting method and image pick-up device using the method6 Mar 2007US 7,187,409 B2Ricoh Company, Ltd.
- Video camera30 Apr 1996US 5,512,947 AFuji Photo Film Co., Ltd.
- Image sensing apparatus13 Jun 1995US 5,424,774 ACanon Kabushiki Kaisha
- Suppression of clipping artifacts from color conversion13 Feb 2025US 2025/0054192 A1
- Electronic Device with Motion Based Color Correction24 Oct 2024US 2024/0357069 A1Apple Inc.
- Suppression of clipping artifacts from color conversion1 Jun 2023US 2023/0169689 A1Texas Instruments Incorporated
- Image signal processing unit and method30 Nov 2006US 2006/0268358 A1Fujitsu Limited
- Method of and apparatus for processing picture signal26 Dec 2002US 2002/0196353 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Video camera20US 5,512,947 AFuji Photo Film Co., Ltd. · 1996
- Level difference correcting method and image pick-up device using the method13US 7,187,409 B2Ricoh Company, Ltd. · 2007
- Image sensing apparatus11US 5,424,774 ACanon Kabushiki Kaisha · 1995
- Video camera with coarse analog and fine digital black level adjustment7US 5,410,365 ASony Corporation · 1995
- Image signal processing unit for amplifying signal level of effective pixel region and method1US 7,782,368 B2Fujitsu Semiconductor Limited · 2010