H04N 3/26
Modifications of scanning arrangements to improve focusing
H04N3/26 (Modifications of scanning arrangements to improve focusing) appears on 141 US grants and 27 published applications in this corpus.
Search patents in H04N- Granted patents
- 141
- Published applications
- 27
- Assignees
- 56
- Inventors
- 187
- Latest grant
- 26 Jul 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 13 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 0 |
| 2002 | 6 | 6 |
| 2003 | 7 | 9 |
| 2004 | 6 | 4 |
| 2005 | 4 | 4 |
| 2006 | 2 | 2 |
| 2007 | 2 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Spatial scan replication circuit26 Jul 2011US 7,986,851 B2
- Spatial scan replication circuit26 Oct 2010US 7,822,284 B2
- Horizontal and vertical dynamic correction in CRT monitors17 Aug 2010US 7,777,432 B2STMicroelectronics Asia Pacific Pte Ltd
- Spatial scan replication circuit3 Jun 2008US 7,382,929 B2IP Innovation LLC
- Focus voltage amplifier13 May 2008US 7,372,509 B2Thomson Licensing
- Mini-Projector Applied for Video Output Device14 Nov 2013US 2013/0300947 A1Aiptek International Inc.
- Spatial scan replication circuit20 Aug 2009US 2009/0208127 A1IP Innovation LLC
- Horizontal and vertical dynamic correction in crt monitors2 Nov 2006US 2006/0244399 A1STMicroelectronics Asia Pacific Pte Ltd
- Passive compensation of focus tracking utilizing winding and capacitor27 Jul 2006US 2006/0164018 A1Thomson Licensing
- Focus voltage control arrangement with ultor voltage tracking3 Nov 2005US 2005/0242755 A1
Most cited
By later US patents
- Apparatus and method for spacial scan modulation of a video display47US 5,424,780 A1995
- Astigmatic focus correction circuit23US 3,961,223 AUnited Technologies Corporation · 1976
- Spatial scan replication circuit23US 6,529,637 B1IP Innovation LLC · 2003
- Parabolic voltage generating apparatus for television17US 4,683,405 ARCA Corporation · 1987
- Dynamic focusing device for cathode ray tube16US 5,463,427 AMatsushita Electric Industrial Co., Ltd. · 1995