H04N 9/645
Beam current control means
Official title: {Beam current control means}
H04N9/645 (Beam current control means) appears on 59 US grants and 10 published applications in this corpus.
Search patents in H04N- Granted patents
- 59
- Published applications
- 10
- Assignees
- 30
- Inventors
- 85
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 5 | 3 |
| 2004 | 2 | 2 |
| 2005 | 3 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for phase contrast microscopy imaging19 Oct 2021US 11,150,461 B2Ankon Medical Technologies (Shanghai) Co., LTD.
- Control device, optical scanning device, display apparatus, and control method12 Oct 2021US 11,146,764 B2Mitsumi Electric Co., Ltd.
- Bias control circuitry for cathode ray tube beam currents23 Oct 2007US 7,286,175 B1National Semiconductor Corporation
- Circuit for generating a process-independent current14 Feb 2006US 6,998,782 B1National Semiconductor Corporation
- Automatic cut-off system29 Nov 2005US 6,970,203 B2Matsushita Electric Industrial Co., Ltd.
- System and method for phase contrast microscopy imaging20 May 2021US 2021/0149177 A1Ankon Medical Technologies (Shanghai) Co., LTD.
- Control device, optical scanning device, display apparatus, and control method17 Sep 2020US 2020/0296337 A1Mitsumi Electric Co., Ltd.
- Beam current measurement2 Mar 2006US 2006/0043958 A1Koninklijke Philips Electronics N. V.
- Method and apparatus to improve picture aesthetics during switch-on29 Apr 2004US 2004/0080617 A1Koninlijke Philips Electroics N.V.
- Method and apparatus for improved transform functions for non gamma corrected graphics systems8 Apr 2004US 2004/0066388 A1
Most cited
By later US patents
- Image display device110US 6,400,418 B1Mitsubishi Denki Kabushiki Kaisha · 2002
- Method and system of achieving accurate white point setting of a CRT display78US 5,512,961 AApple Computer, Inc. · 1996
- System and method to compensate for the effects of aging of the phosphors and faceplate upon color accuracy in a cathode ray tube61US 5,821,917 AApple Computer, Inc. · 1998
- Apparatus responsive to plural color video signals for amplitude limiting the video signals to assist beam current limiting27US 4,599,643 ARCA Corporation · 1986
- Automatic gray scale tracking system for cathode ray display devices22US 4,340,904 AGeneral Electric Company · 1982