H04N 7/081
The additional information signals being transmitted by means of a subcarrier
Official title: the additional information signals being transmitted by means of a subcarrier
H04N7/081 (The additional information signals being transmitted by means of a subcarrier) appears on 106 US grants and 40 published applications in this corpus.
Search patents in H04N- Granted patents
- 106
- Published applications
- 40
- Assignees
- 44
- Inventors
- 150
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 4 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 1 |
| 2010 | 2 | 4 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 4 | 7 |
| 2015 | 4 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Broadcasting signal frame generation apparatus and method using layered divisional multiplexing28 Jan 2025US 12,212,642 B2Electronics and Telecommunications Research Institute
- Broadcasting signal frame generation apparatus and method using layered divisional multiplexing3 Oct 2023US 11,778,076 B2Electronics and Telecommunications Research Institute
- Broadcast signal frame generation apparatus and broadcast signal frame generation method using layered division multiplexing27 Sep 2022US 11,457,174 B2Electronics and Telecommunications Research Institute
- Video processing apparatus, method and system26 Apr 2022US 11,317,051 B2China Film GDC (Beijing) Technology Co., Ltd.
- Broadcast signal frame generation apparatus and broadcast signal frame generation method using layered division multiplexing25 May 2021US 11,019,303 B2Electronics and Telecommunications Research Institute
- Broadcasting signal frame generation apparatus and method using layered divisional multiplexing30 Nov 2023US 2023/0388399 A1Electronics and Telecommunications Research Institute
- Broadcasting signal frame generation apparatus and method using layered divisional multiplexing8 Dec 2022US 2022/0394115 A1Electronics and Telecommunications Research Institute
- Video processing apparatus, method and system6 Jan 2022US 2022/0006970 A1Huaxia Gdc Film Technology Co., Ltd
- Broadcast signal frame generation apparatus and broadcast signal frame generation method using layered division multiplexing12 Aug 2021US 2021/0250546 A1Electronics and Telecommunications Research Institute
- Broadcast signal frame generation apparatus and broadcast signal frame generation method using layered division multiplexing5 Nov 2020US 2020/0351469 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
- Arrangement for and method of processing data, especially for identifying and verifying airing of television broadcast programs497US 5,200,822 ANational Broadcasting Company, Inc. · 1993
- Method of and system for identification and verification of broadcasting television and radio program segments396US 4,945,412 A1990
- Broadcast acknowledgement method and system308US 4,225,967 AFujitsu Limited · 1980
- Method and apparatus for transmitting and receiving additional information in a television signal283US 4,079,419 ABlaupunkt-Werke GmbH · 1978
- Method of and system for identification and verification of broadcasted program segments277US 4,931,871 A1990