H04N 9/8227
The additional signal being at least another television signal
Official title: {the additional signal being at least another television signal}
H04N9/8227 (The additional signal being at least another television signal) appears on 2,242 US grants and 2,356 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,242
- Published applications
- 2,356
- Assignees
- 352
- Inventors
- 2,593
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 23 | 0 |
| 1997 | 44 | 0 |
| 1998 | 79 | 0 |
| 1999 | 83 | 0 |
| 2000 | 97 | 0 |
| 2001 | 76 | 50 |
| 2002 | 90 | 167 |
| 2003 | 86 | 116 |
| 2004 | 68 | 168 |
| 2005 | 42 | 161 |
| 2006 | 91 | 272 |
| 2007 | 101 | 264 |
| 2008 | 97 | 173 |
| 2009 | 129 | 220 |
| 2010 | 167 | 161 |
| 2011 | 119 | 129 |
| 2012 | 188 | 135 |
| 2013 | 222 | 80 |
| 2014 | 132 | 74 |
| 2015 | 89 | 35 |
| 2016 | 41 | 30 |
| 2017 | 25 | 26 |
| 2018 | 34 | 20 |
| 2019 | 22 | 18 |
| 2020 | 19 | 11 |
| 2021 | 17 | 5 |
| 2022 | 8 | 17 |
| 2023 | 10 | 6 |
| 2024 | 9 | 10 |
| 2025 | 5 | 4 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Information recording/reproducing apparatus20 Aug 2026US 2026/0245590 A1Maxell, Ltd.
- Combining video streams having different information-bearing levels2 Jul 2026US 2026/0189671 A1Apple Inc.
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Most cited
By later US patents
- Method and system for automatically tracking a zoomed video image730US 5,610,653 A1997
- Digital video recorder compatible receiver with trick play image enhancement527US 5,377,051 AHitachi America, Ltd. · 1994
- Seamless transmission of non-sequential video segments488US 5,434,678 A1995
- Advertisement subsidized video-on-demand system473US 6,553,178 B22003
- System for integrating video and communications421US 5,684,918 A1997