H04N 5/931
For restoring the level of the reproduced signal
Official title: for restoring the level of the reproduced signal
H04N5/931 (For restoring the level of the reproduced signal) appears on 94 US grants and 13 published applications in this corpus.
Search patents in H04N- Granted patents
- 94
- Published applications
- 13
- Assignees
- 40
- Inventors
- 181
- Latest grant
- 15 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 3 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 3 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Storage systems configured for storage volume addition in synchronous replication using active-active configuration15 Mar 2022US 11,275,765 B2EMC IP Holding Company LLC
- System and method of generating subtitling for media25 Feb 2020US 10,574,932 B2Fox Digital Enterprises, Inc.
- Signature device and signature method25 Oct 2016US 9,477,846 B2Fujitsu Limited
- Preserving synchronized playout of auxiliary audio transmission23 Aug 2016US 9,426,335 B2Cisco Technology, Inc.
- Content source identification using matrix barcode14 Jun 2016US 9,367,669 B2EchoStar Technologies L. L. C.
- Storage systems configured for storage volume addition in synchronous replication using active-active configuration30 Jul 2020US 2020/0242130 A1EMC IP Holding Company LLC
- Signature device and signature method12 Jan 2017US 2017/0011235 A1Fujitsu Limited
- Information reproduction device and method of providing content18 Jun 2015US 2015/0170702 A1Sharp Kabushiki Kaisha
- Signature device and signature method14 May 2015US 2015/0131965 A1Fujitsu Limited
- Preserving synchronized playout of auxiliary audio transmission8 May 2014US 2014/0126653 A1Cisco Technology, Inc.
Most cited
By later US patents
- Method and apparatus for data recording disc playback36US 4,761,692 APioneer Electronic Corporation · 1988
- Video disc player23US 4,340,950 AUniversal Pioneer Corporation · 1982
- System for automatically correcting the duty factor of the carrier wave arising from reading-out a data carrier18US 4,142,208 AThomson-Brandt · 1979
- Circuit system for reproducing a signal from a moving record carrier18US 4,165,495 ASony Corporation · 1979
- Apparatus for detecting digital data18US 5,255,128 ASony Corporation · 1993