H04N 9/3123
Using pulse width modulation
Official title: {using pulse width modulation}
H04N9/3123 (Using pulse width modulation) appears on 95 US grants and 117 published applications in this corpus.
Search patents in H04N- Granted patents
- 95
- Published applications
- 117
- Assignees
- 51
- Inventors
- 179
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 4 | 4 |
| 2004 | 2 | 2 |
| 2005 | 2 | 4 |
| 2006 | 3 | 12 |
| 2007 | 4 | 3 |
| 2008 | 4 | 10 |
| 2009 | 2 | 14 |
| 2010 | 1 | 6 |
| 2011 | 10 | 4 |
| 2012 | 7 | 2 |
| 2013 | 5 | 2 |
| 2014 | 2 | 1 |
| 2015 | 2 | 0 |
| 2016 | 6 | 8 |
| 2017 | 4 | 6 |
| 2018 | 9 | 7 |
| 2019 | 6 | 7 |
| 2020 | 8 | 4 |
| 2021 | 4 | 3 |
| 2022 | 2 | 4 |
| 2023 | 4 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 4 |
| 2026 | 0 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for local dimming in multi-modulation displays21 Jan 2025US 12,207,026 B2Dolby Laboratories Licensing Corporation
- Display device and control method thereof8 Oct 2024US 12,111,563 B2Appotronics Corporation Limited
- Fluorescence imaging in a light deficient environment26 Mar 2024US 11,937,784 B2Cilag GmbH International
- Systems and methods for local dimming in multi-modulation displays5 Dec 2023US 11,838,692 B2Dolby Laboratories Licensing Corporation
- Image processing apparatus and image processing method10 Oct 2023US 11,785,188 B2Sony Group Corporation
- Projector24 Sep 2026US 2026/0292111 A1Seiko Epson Corporation
- Pulse width modulation sequencing in light projection systems using light-recycling color filters14 May 2026US 2026/0135978 A1Texas Instruments Incorporated
- Projection device and control method thereof16 Apr 2026US 2026/0106957 A1Coretronic Corporation
- Pulse width modulation sequencing in light projection systems using light- recycling color filters12 Mar 2026US 2026/0075168 A1Texas Instruments Incorporated
- Laser projection apparatus and image display method therefor26 Feb 2026US 2026/0059077 A1Hisense Laser Display Co., Ltd
Most cited
By later US patents
- Secondary color boost in sequential color systems43US 6,567,134 B1Texas Instruments Incorporated · 2003
- Image-forming system with enhanced gray levels28US 6,567,217 B1Eastman Kodak Company · 2003
- Light source control for projector with multiple pulse-width modulated light sources23US 8,444,275 B2Eastman Kodak Company · 2013
- System and method for pulse-width modulating a phase-only spatial light modulator18US 9,918,053 B2Jasper Display Corp. · 2018
- DMD-based image display systems17US 7,224,335 B2IMAX Corporation · 2007