H04N 7/1696
By changing or reversing the order of active picture signal portions
Official title: {by changing or reversing the order of active picture signal portions}
H04N7/1696 (By changing or reversing the order of active picture signal portions) appears on 86 US grants and 11 published applications in this corpus.
Search patents in H04N- Granted patents
- 86
- Published applications
- 11
- Assignees
- 52
- Inventors
- 123
- Latest grant
- 12 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 2 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Anti-piracy video transmission and display12 Mar 2024US 11,930,294 B2Comcast Cable Communications, LLC
- Anti-piracy video transmission and display20 Dec 2022US 11,533,450 B2Comcast Cable Communications, LLC
- Video monitoring system with video signal encrypted and the method for the same26 Jun 2012US 8,208,629 B2Vimicro Corporation
- Methods and apparatus for protecting information content22 Apr 2008US 7,362,861 B2Microsoft Corporation
- Scrambling and descrambling a high definition TV signal25 Sep 2007US 7,274,790 B2Macrovision Corporation
- Anti-Piracy Video Transmission and Display4 May 2023US 2023/0139203 A1Comcast Cable Communications, LLC
- Anti-Piracy Video Transmission and Display28 Mar 2019US 2019/0098251 A1Comcast Cable Communications, LLC
- Video monitoring system with video signal encrypted and the and method for the same28 May 2009US 2009/0136030 A1Vimicro Corporation
- System for protecting information content8 Sep 2005US 2005/0195976 A1Microsoft Corporation
- Methods and apparatus for protecting information content4 Nov 2004US 2004/0218759 A1Microsoft Corporation
Most cited
By later US patents
- Video transmission system191US 4,742,543 A1988
- Secure television transmission system175US 4,070,693 AWestinghouse Electric Corp. · 1978
- Scrambling system for television sound signals159US 4,266,243 AWestinghouse Electric Corp. · 1981
- Method and system for secure transmission and reception of video information, particularly for television150US 4,405,942 ATelease, Inc. · 1983
- Video signal scrambling and descrambling systems148US 4,563,702 AM/A-COM Linkabit, Inc. · 1986