H04N 5/275
Generation of keying signals
H04N5/275 (Generation of keying signals) appears on 189 US grants and 124 published applications in this corpus.
Search patents in H04N- Granted patents
- 189
- Published applications
- 124
- Assignees
- 122
- Inventors
- 359
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 2 |
| 2002 | 8 | 4 |
| 2003 | 2 | 5 |
| 2004 | 4 | 2 |
| 2005 | 1 | 3 |
| 2006 | 6 | 10 |
| 2007 | 9 | 10 |
| 2008 | 4 | 11 |
| 2009 | 1 | 5 |
| 2010 | 4 | 4 |
| 2011 | 4 | 5 |
| 2012 | 4 | 2 |
| 2013 | 7 | 3 |
| 2014 | 4 | 1 |
| 2015 | 2 | 6 |
| 2016 | 1 | 5 |
| 2017 | 7 | 5 |
| 2018 | 5 | 3 |
| 2019 | 3 | 2 |
| 2020 | 1 | 3 |
| 2021 | 4 | 7 |
| 2022 | 6 | 4 |
| 2023 | 6 | 9 |
| 2024 | 3 | 5 |
| 2025 | 7 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Camera tracking via dynamic perspectives22 Sep 2026US 12,743,793 B2NantStudios, LLC
- Creative camera2 Jun 2026US 12,647,673 B2Apple Inc.
- Information processing apparatus, information processing method, and system28 Apr 2026US 12,615,355 B2Sony Group Corporation
- Chroma key compositing and lighting adjustment system30 Sep 2025US 12,432,312 B1
- Camera focus control23 Sep 2025US 12,425,731 B2Mo-Sys Engineering Limited
- Creative camera27 Aug 2026US 2026/0255047 A1Apple Inc.
- Information processing device, video processing method, and program30 Jul 2026US 2026/0222669 A1Sony Group Corporation
- Chroma key compositing and lighting adjustment system21 May 2026US 2026/0143081 A1Mediabook, Inc.
- Chroma Key Composting Including Lighting Balancing29 Jan 2026US 2026/0032214 A1Mediabook, Inc.
- Multi-format keying3 Jul 2025US 2025/0220144 A1Mo-Sys Engineering Limited
Most cited
By later US patents
- Method and apparatus for including virtual ads in video presentations196US 6,381,362 B1Tata America International Corporation · 2002
- Object imaging system190US 5,631,976 AInternational Business Machines Corporation · 1997
- Head mounted displays linked to networked electronic panning cameras142US 6,133,944 ATelcordia Technologies, Inc. · 2000
- Video merging employing pattern-key insertion134US 5,566,251 ADavid Sarnoff Research Center, Inc. · 1996
- Video compositing using a software linear keyer127US 4,827,253 ADubner Computer Systems, Inc. · 1989