H04N 21/615
Signal processing at physical level
Official title: {Signal processing at physical level (signal processing in analog two-way television systems H04N7/173)}
H04N21/615 (Signal processing at physical level) appears on 156 US grants and 178 published applications in this corpus.
Search patents in H04N- Granted patents
- 156
- Published applications
- 178
- Assignees
- 73
- Inventors
- 249
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 10 |
| 2003 | 2 | 16 |
| 2004 | 3 | 4 |
| 2005 | 9 | 4 |
| 2006 | 4 | 1 |
| 2007 | 4 | 4 |
| 2008 | 3 | 2 |
| 2009 | 2 | 1 |
| 2010 | 4 | 4 |
| 2011 | 5 | 4 |
| 2012 | 3 | 1 |
| 2013 | 2 | 4 |
| 2014 | 3 | 6 |
| 2015 | 8 | 6 |
| 2016 | 6 | 15 |
| 2017 | 12 | 13 |
| 2018 | 12 | 15 |
| 2019 | 8 | 17 |
| 2020 | 13 | 10 |
| 2021 | 13 | 16 |
| 2022 | 14 | 12 |
| 2023 | 12 | 6 |
| 2024 | 8 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic device and control method thereof16 Jun 2026US 12,658,161 B2Samsung Electronics Co., Ltd.
- Headend controller and method of use2 Dec 2025US 12,489,957 B1Z-Band Technologies, LLC
- Arrangement for adjusting frequency response21 Jan 2025US 12,206,953 B2Teleste Networks Oy
- Broadcast reception apparatus and operation method thereof15 Oct 2024US 12,120,382 B2LG Electronics Inc.
- Systems and methods for controlling hospitality distribution networks10 Sep 2024US 12,088,405 B2Sonifi Solutions, Inc.
- Electronic device and control method thereof2 Jul 2026US 2026/0188279 A1Samsung Electronics Co., Ltd.
- Apparatus and Method for Coding, Transport and Signaling of Logos and Icons in Television and Radio Broadcasts16 Apr 2026US 2026/0107034 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Image transmission and reception system, non-transitory computer readable medium storing program, and image transmission and reception method12 Mar 2026US 2026/0074832 A1FUJIFILM Business Innovation Corp.
- Apparatus and method for coding of radio programs and multimedia services in television broadcasts9 Oct 2025US 2025/0317230 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Advanced data cell resource mapping2 Oct 2025US 2025/0310580 A1One Media, LLC
Most cited
By later US patents
- Hybrid central/distributed VOD system with tiered content structure259US 7,690,020 B2Time Warner Cable, a division of Time Warner Entertainment Company, L.P. · 2010
- Personal computer-based set-top converter for television services141US 5,982,363 AGeneral Instrument Corporation · 1999
- Hybrid central/distributed VOD system with tiered content structure127US 7,926,079 B2Time Warner Cable, a division of Time Warner Entertainment Company, L.P. · 2011
- Robust data transmission using broadcast digital television signals120US 7,042,949 B1Rosum Corporation · 2006
- Radio frequency characterization of cable plant and corresponding calibration of communication equipment communicating via the cable plant99US 7,162,731 B2Advent Networks, Inc. · 2007