H04N 5/21
Circuitry for suppressing or minimising disturbance
Official title: Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
H04N5/21 (Circuitry for suppressing or minimising disturbance) appears on 2,060 US grants and 1,326 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,060
- Published applications
- 1,326
- Assignees
- 591
- Inventors
- 3,020
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 12 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 19 | 0 |
| 1982 | 15 | 0 |
| 1983 | 23 | 0 |
| 1984 | 11 | 0 |
| 1985 | 22 | 0 |
| 1986 | 20 | 0 |
| 1987 | 32 | 0 |
| 1988 | 13 | 0 |
| 1989 | 24 | 0 |
| 1990 | 26 | 0 |
| 1991 | 27 | 0 |
| 1992 | 44 | 0 |
| 1993 | 49 | 0 |
| 1994 | 63 | 0 |
| 1995 | 46 | 0 |
| 1996 | 62 | 0 |
| 1997 | 51 | 0 |
| 1998 | 73 | 0 |
| 1999 | 61 | 0 |
| 2000 | 48 | 0 |
| 2001 | 65 | 16 |
| 2002 | 72 | 57 |
| 2003 | 47 | 59 |
| 2004 | 52 | 85 |
| 2005 | 41 | 79 |
| 2006 | 64 | 97 |
| 2007 | 53 | 87 |
| 2008 | 64 | 88 |
| 2009 | 69 | 78 |
| 2010 | 84 | 89 |
| 2011 | 52 | 63 |
| 2012 | 87 | 66 |
| 2013 | 78 | 65 |
| 2014 | 99 | 43 |
| 2015 | 65 | 127 |
| 2016 | 53 | 52 |
| 2017 | 58 | 32 |
| 2018 | 39 | 35 |
| 2019 | 41 | 25 |
| 2020 | 30 | 24 |
| 2021 | 17 | 14 |
| 2022 | 18 | 19 |
| 2023 | 9 | 7 |
| 2024 | 11 | 8 |
| 2025 | 8 | 9 |
| 2026 | 7 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image processing apparatus and image processing method6 Oct 2026US 12,755,361 B2Sony Group Corporation
- Display device and operating method therefor8 Sep 2026US 12,732,588 B2LG Electronics Inc.
- Cascade image processing for noise reduction25 Aug 2026US 12,718,336 B2QUALCOMM Incorporated
- Virtual and augmented reality systems and methods9 Jun 2026US 12,650,608 B2Magic Leap, Inc.
- Image noise reduction and filter data processing method and apparatus, and computer device26 May 2026US 12,639,794 B2Tencent Technology (Shenzhen) Company Limited
- Virtual and augmented reality systems and methods17 Sep 2026US 2026/0277014 A1Magic Leap, Inc.
- Method and device for measuring hud ghost image23 Apr 2026US 2026/0112129 A1Sookmyung Women's University Industry-Academic Cooperation Foundation
- Display device and operation method thereof4 Dec 2025US 2025/0371682 A1LG Electronics Inc.
- Display device and operating method therefor20 Nov 2025US 2025/0358381 A1LG Electronics Inc.
- Removing independent noise using deepinterpolation23 Oct 2025US 2025/0328993 A1Allen Institute
Most cited
By later US patents
- Virtual and augmented reality systems and methods701US 9,791,700 B2Magic Leap, Inc. · 2017
- Moving image compression quality enhancement using displacement filters with negative lobes497US 6,728,317 B1Dolby Laboratories Licensing Corporation · 2004
- Fault tolerant projective display having redundant light modulators406US 5,815,303 AXerox Corporation · 1998
- Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters328US 5,282,023 AHitachi America, Ltd. · 1994
- Narrowband interference cancellation through the use of digital recursive notch filters323US 5,325,204 AHitachi America, Ltd. · 1994