H04N 13/20
Image signal generators
H04N13/20 (Image signal generators) appears on 12,460 US grants and 14,416 published applications in this corpus.
Search patents in H04N- Granted patents
- 12,460
- Published applications
- 14,416
- Assignees
- 3,200
- Inventors
- 20,193
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 20 | 0 |
| 1988 | 21 | 0 |
| 1989 | 25 | 0 |
| 1990 | 23 | 0 |
| 1991 | 33 | 0 |
| 1992 | 38 | 0 |
| 1993 | 29 | 0 |
| 1994 | 30 | 0 |
| 1995 | 41 | 0 |
| 1996 | 57 | 0 |
| 1997 | 80 | 0 |
| 1998 | 122 | 0 |
| 1999 | 127 | 0 |
| 2000 | 128 | 0 |
| 2001 | 125 | 44 |
| 2002 | 108 | 159 |
| 2003 | 98 | 135 |
| 2004 | 84 | 134 |
| 2005 | 79 | 135 |
| 2006 | 97 | 123 |
| 2007 | 85 | 120 |
| 2008 | 63 | 161 |
| 2009 | 73 | 151 |
| 2010 | 78 | 239 |
| 2011 | 95 | 456 |
| 2012 | 200 | 734 |
| 2013 | 271 | 806 |
| 2014 | 468 | 850 |
| 2015 | 643 | 963 |
| 2016 | 745 | 993 |
| 2017 | 891 | 1150 |
| 2018 | 953 | 1113 |
| 2019 | 1200 | 1082 |
| 2020 | 1222 | 1046 |
| 2021 | 948 | 934 |
| 2022 | 798 | 767 |
| 2023 | 698 | 681 |
| 2024 | 656 | 609 |
| 2025 | 624 | 496 |
| 2026 | 350 | 335 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 13/204Using stereoscopic image cameras9,680
- H04N 13/271Wherein the generated image signals comprise depth maps or disparity maps2,086
- H04N 13/296Synchronisation thereof2,005
- H04N 13/275From three-dimensional [3d] object models1,454
- H04N 13/282For generating image signals corresponding to three or more geometrical viewpoints1,011
- H04N 13/257Colour aspects962
- H04N 13/286Having separate monoscopic and stereoscopic modes788
- H04N 13/261With monoscopic-to-stereoscopic image conversion787
All 9 subgroupsShow fewer
Recent patents
- Intrusion detection system, intrusion detection method, and computer-readable medium6 Oct 2026US 12,755,621 B2NEC Corporation
- Systems and methods implementing distance-based image sensor windowing6 Oct 2026US 12,756,809 B2Intuitive Surgical Operations, Inc.
- System of converting 2D image to multi-view image for stereoscopic display and method thereof6 Oct 2026US 12,756,810 B1Light Matrix Inc.
- Optical assemblies for endoscopic stereo visualization29 Sep 2026US 12,745,897 B2Cilag GmbH International
- Illumination sources for multicore fiber endoscopes29 Sep 2026US 12,745,900 B2Zsquare Ltd.
- Electronic device and method for controlling electronic device8 Oct 2026US 2026/0310287 A1Canon Kabushiki Kaisha
- Systems and Methods for Estimating Depth and Visibility from a Reference Viewpoint for Pixels in a Set of Images Captured from Different Viewpoints8 Oct 2026US 2026/0311355 A1Adeia Imaging LLC
- System and a method to achieve single-shot stereo calibration8 Oct 2026US 2026/0311368 A1Irida Labs S.A.
- System and a method to achieve single-shot stereo calibration8 Oct 2026US 2026/0311369 A1Irida Labs S.A.
- System and a method to achieve single-shot stereo calibration8 Oct 2026US 2026/0311370 A1Irida Labs S.A.
Most cited
By later US patents
- Alignment of master and slave in a minimally invasive surgical apparatus2,565US 6,364,888 B1Intuitive Surgical, Inc. · 2002
- Apparatus and method for performing computer enhanced surgery with articulated instrument1,896US 6,223,100 B1SRI International · 2001
- Rearview vision system for vehicle including panoramic view1,778US 5,670,935 ADonnelly Corporation · 1997
- Electronic endoscope apparatus with imaging unit separable therefrom1,753US 5,653,677 AFuji Photo Optical Co., Ltd. · 1997
- Surgical method1,654US 6,963,792 B1SRI International · 2005