H04N 3/16
By deflecting electron beam in cathode-ray tube
Official title: by deflecting electron beam in cathode-ray tube {, e.g. scanning corrections}
H04N3/16 (By deflecting electron beam in cathode-ray tube) appears on 1,435 US grants and 192 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,435
- Published applications
- 192
- Assignees
- 265
- Inventors
- 1,523
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 53 | 0 |
| 1977 | 35 | 0 |
| 1978 | 34 | 0 |
| 1979 | 24 | 0 |
| 1980 | 40 | 0 |
| 1981 | 32 | 0 |
| 1982 | 31 | 0 |
| 1983 | 30 | 0 |
| 1984 | 32 | 0 |
| 1985 | 33 | 0 |
| 1986 | 33 | 0 |
| 1987 | 73 | 0 |
| 1988 | 45 | 0 |
| 1989 | 46 | 0 |
| 1990 | 40 | 0 |
| 1991 | 47 | 0 |
| 1992 | 35 | 0 |
| 1993 | 51 | 0 |
| 1994 | 66 | 0 |
| 1995 | 64 | 0 |
| 1996 | 46 | 0 |
| 1997 | 54 | 0 |
| 1998 | 50 | 0 |
| 1999 | 74 | 0 |
| 2000 | 54 | 0 |
| 2001 | 81 | 11 |
| 2002 | 54 | 36 |
| 2003 | 32 | 36 |
| 2004 | 28 | 23 |
| 2005 | 13 | 24 |
| 2006 | 25 | 13 |
| 2007 | 21 | 9 |
| 2008 | 8 | 6 |
| 2009 | 5 | 3 |
| 2010 | 6 | 0 |
| 2011 | 4 | 3 |
| 2012 | 2 | 2 |
| 2013 | 5 | 7 |
| 2014 | 2 | 5 |
| 2015 | 7 | 3 |
| 2016 | 8 | 6 |
| 2017 | 5 | 1 |
| 2018 | 3 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- H04N 3/22Circuits for controlling dimensions, shape or centering of picture on screen736
- H04N 3/18Generation of supply voltages, in combination with electron beam deflecting271
- H04N 3/27Circuits special to multi-standard receivers181
- H04N 3/20Prevention of damage to cathode-ray tubes in the event of failure of164
- H04N 3/26Modifications of scanning arrangements to improve focusing141
- H04N 3/24Blanking circuits53
Recent patents
- Method to compensate for projection errors when outputting images, system having an arithmetic logic unit for carrying out the method and computer program22 Apr 2025US 12,284,459 B2Robert Bosch GmbH
- Reference voltage control in a power supply15 Sep 2020US 10,775,817 B2Infineon Technologies Austria AG
- Touch sensitive method, apparatus and electronic system for reducing interferences from pixel update23 Apr 2019US 10,268,327 B2Egalax_Empia Technology Inc.
- Image projection apparatus12 Mar 2019US 10,230,930 B2Ricoh Company, Ltd.
- Projection system, image processing apparatus, and calibration method2 Oct 2018US 10,091,475 B2Ricoh Company, Ltd.
- Method to compensate for projection errors when outputting images, system having an arithmetic logic unit for carrying out the method and computer program15 Feb 2024US 2024/0056548 A1Robert Bosch GmbH
- Reference voltage control in a power supply5 Sep 2019US 2019/0271998 A1Infineon Technologies Austria AG
- Projector and method for controlling projector25 Apr 2019US 2019/0124309 A1Seiko Epson Corporation
- Image projection apparatus24 May 2018US 2018/0146179 A1Ricoh Company, Ltd.
- Touch Sensitive Method, Apparatus and Electronic System for Reducing Interferences from Pixel Update23 Nov 2017US 2017/0336892 A1Egalax_Empia Technology Inc.
Most cited
By later US patents
- Picture processing apparatus257US 4,549,208 AHitachi, Ltd. · 1985
- Display system having wide field of view257US 4,772,942 APilkington P. E. Limited · 1988
- Screw and driver235US 5,217,462 APfizer Hospital Products Group, Inc. · 1993
- Luminance processing system for compressing and expanding video data142US 5,311,309 AThomson Consumer Electronics, Inc. · 1994
- Two stage interpolation system128US 5,351,087 AThomson Consumer Electronics, Inc. · 1994