H04N 21/440254
By altering signal-to-noise parameters
Official title: {by altering signal-to-noise parameters, e.g. requantization}
H04N21/440254 (By altering signal-to-noise parameters) appears on 96 US grants and 97 published applications in this corpus.
Search patents in H04N- Granted patents
- 96
- Published applications
- 97
- Assignees
- 67
- Inventors
- 222
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 7 |
| 2003 | 5 | 6 |
| 2004 | 1 | 4 |
| 2005 | 0 | 8 |
| 2006 | 3 | 5 |
| 2007 | 4 | 11 |
| 2008 | 5 | 6 |
| 2009 | 3 | 10 |
| 2010 | 7 | 3 |
| 2011 | 3 | 1 |
| 2012 | 6 | 2 |
| 2013 | 5 | 4 |
| 2014 | 7 | 4 |
| 2015 | 3 | 2 |
| 2016 | 2 | 4 |
| 2017 | 3 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 4 | 0 |
| 2021 | 1 | 3 |
| 2022 | 3 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image processing method and apparatus, electronic device and readable storage medium7 Oct 2025US 12,439,012 B2Beijing Zitiao Network Technology Co., Ltd.
- Signal processing device and video display device comprising same29 Jul 2025US 12,375,622 B2LG Electronics Inc.
- Methods and systems for managing storage of videos in a storage device2 Jan 2024US 11,863,815 B2LightMetrics Technologies Pvt.Ltd.
- Signal processing device and video display device comprising same19 Dec 2023US 11,849,250 B2LG Electronics Inc.
- Signal processing device and video display device comprising same28 Mar 2023US 11,616,930 B2LG Electronics Inc.
- Bitrate adaptation for edge-assisted localization given network availability for mobile devices6 Aug 2026US 2026/0228922 A1Telefonaktiebolaget LM Ericsson (publ)
- Bitrate adaptation for edge-assisted localization based on map availability for mobile devices30 Jul 2026US 2026/0220794 A1Telefonaktiebolaget LM Ericsson (publ)
- Image data transceiving system and image data transceiving method26 Feb 2026US 2026/0059114 A1Realtek Semiconductor Corp.
- Signal processing device and video display device comprising same20 Nov 2025US 2025/0358386 A1LG Electronics Inc.
- Image quality management system6 Feb 2025US 2025/0046444 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Digital video decoder for decoding digital high definition and/or digital standard definition television signals177US 5,614,952 AHitachi America, Ltd. · 1997
- Low cost joint HD/SD television decoder methods and apparatus159US 5,635,985 AHitachi America, Ltd. · 1997
- Digital entertainment terminal providing multiple digital pictures145US 5,847,771 ABell Atlantic Network Services, Inc. · 1998
- Apparatus and methods for transcoder-based adaptive quantization115US 6,441,754 B1General Instrument Corporation · 2002
- Transcoding for consumer set-top storage application103US 6,532,593 B1General Instrument Corporation · 2003