H04N 7/1713
By modifying synchronisation signals
Official title: {by modifying synchronisation signals}
H04N7/1713 (By modifying synchronisation signals) appears on 137 US grants and 8 published applications in this corpus.
Search patents in H04N- Granted patents
- 137
- Published applications
- 8
- Assignees
- 57
- Inventors
- 190
- Latest grant
- 6 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 10 | 0 |
| 1987 | 13 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Secure control and operation of drones6 Jul 2021US 11,056,009 B2Performance Drone Works LLC
- Method of transmission of a digital content stream and corresponding method of reception29 Mar 2016US 9,300,709 B2Thomson Licensing
- Digital processing disruption systems16 Sep 2014US 8,837,909 B2DCS Copy Protection Limited
- Digital processing disruption systems4 Oct 2011US 8,032,006 B2DCS Copy Protection Limited
- Multichannel quadrature modulation25 May 2010US 7,724,309 B2General Instrument Corporation
- Secure control and operation of drones1 Aug 2019US 2019/0236962 A1Drone Racing League, Inc.
- Signal modification via media guidance application data and/or metadata21 Jun 2012US 2012/0159534 A1Rovi Technologies Corporation
- Digital Processing Disruption Systems12 Apr 2012US 2012/0086854 A1DCS Copy Protection Limited
- Method of transmission of a digital content stream and corresponding method of reception29 Apr 2010US 2010/0107202 A1Thomson Licensing
- Multichannel Quadrature Modulation9 Jul 2009US 2009/0174820 A1
Most cited
By later US patents
- Scrambling and unscrambling video signals in a pay TV system224US 4,390,898 ANorthern Telecom Limited · 1983
- Subscription television apparatus and methods174US 4,222,068 AAmerican Television & Communications Corporation · 1980
- Sync suppression scrambling of television signals for subscription TV147US 4,466,017 AScientific-Atlanta, Inc. · 1984
- Scrambled video communication system139US 4,338,628 ADynacom International, Inc. · 1982
- Catv sine wave coding system136US 4,024,575 AOak Industries Inc. · 1977