H04N 9/8222
Using frequency division multiplex
Official title: {using frequency division multiplex}
H04N9/8222 (Using frequency division multiplex) appears on 55 US grants and 7 published applications in this corpus.
Search patents in H04N- Granted patents
- 55
- Published applications
- 7
- Assignees
- 20
- Inventors
- 78
- Latest grant
- 13 Mar 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 6 | 1 |
| 2003 | 2 | 6 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 3 | 0 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Player and disc system for producing video signals in different formats13 Mar 2007US 7,190,880 B2Warner Bros. Home Enterteinment Inc.
- System of multiple players generating outputs of different formats from identical discs5 Sep 2006US 7,103,269 B2Warner Home Video Inc.
- Optical disc player for playing a disc in a selected format1 Aug 2006US 7,085,479 B2Warner Home Video Inc.
- Method of distributing multimedia presentations in different formats on optical discs9 May 2006US 7,043,145 B2Warner Home Video Inc.
- Data structure for allowing play of a video program in multiple aspect ratios3 Aug 2004US 6,771,888 B1
- Method of distributing multimedia presentations in different formats on optical discs6 Nov 2003US 2003/0206725 A1Warner Home Video Inc.
- Optical disc players with customized output sections6 Nov 2003US 2003/0206726 A1Warner Home Video Inc.
- Optical disc player for playing a disc in a selected format16 Oct 2003US 2003/0194219 A1Warner Home Video Inc.
- Optical discs for storing multimedia presentations playable in different formats16 Oct 2003US 2003/0194220 A1
- Player and disc system for producing video signals in different formats16 Oct 2003US 2003/0194221 A1Warner Bros. Home Enterteinment Inc.
Most cited
By later US patents
- Player and disc system for producing video signals in different formats73US 7,190,880 B2Warner Bros. Home Enterteinment Inc. · 2007
- System and method for controlling play of multiple dialog audio tracks of a software carrier72US 5,576,843 ATime Warner Entertainment Co., L. P. · 1996
- System and method for controlling play of multiple dialog audio tracks of a software carrier55US 5,712,950 ATime Warner Entertainment Co., L. P. · 1998
- Video disk with multiplexed video and digital information39US 4,782,402 APioneer Electronic Corporation · 1988
- System and method for controlling play of multiple dialog audio tracks of a software carrier37US 5,671,320 ATime Warner Entertainment Co., L. P. · 1997