H04H 2201/183
Fm digital or hybrid
Official title: FM digital or hybrid
H04H2201/183 (Fm digital or hybrid) appears on 86 US grants and 60 published applications in this corpus.
Search patents in H04H- Granted patents
- 86
- Published applications
- 60
- Assignees
- 36
- Inventors
- 112
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 3 |
| 2002 | 3 | 2 |
| 2003 | 7 | 2 |
| 2004 | 2 | 5 |
| 2005 | 3 | 4 |
| 2006 | 4 | 3 |
| 2007 | 4 | 4 |
| 2008 | 2 | 1 |
| 2009 | 1 | 5 |
| 2010 | 3 | 6 |
| 2011 | 7 | 1 |
| 2012 | 4 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 0 |
| 2015 | 3 | 4 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 3 | 3 |
| 2019 | 3 | 7 |
| 2020 | 6 | 4 |
| 2021 | 4 | 0 |
| 2022 | 0 | 1 |
| 2023 | 4 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and method for consistent FM/HD1 diversity delay23 Sep 2025US 12,425,116 B2Nautel Limited
- Power down workload estimation26 Dec 2023US 11,853,558 B2Micron Technology, Inc.
- Beamforming MRC pre-processing system for adjacency removal of HDR radio21 Nov 2023US 11,824,573 B1Rf2Digital Inc.
- Method for estimating a signal-to-noise ratio12 Sep 2023US 11,757,480 B2Continental Automotive Technologies GmbH
- Multiplex of high definition radio stations11 Jul 2023US 11,700,161 B2Nautel Limited
- Multiband radio systems and methods with dual triplexers and single front-to-back end coaxial connector cable13 Aug 2026US 2026/0238367 A1GM Global Technology Operations LLC
- Method And System For Synchronizing Audio Transmission In A Single Frequency Network22 May 2025US 2025/0167906 A1iBiquity Digital Corporation
- Power down workload estimation6 Jul 2023US 2023/0214126 A1Micron Technology, Inc.
- Systems and method for consistent fm/hd1 diversity delay16 Feb 2023US 2023/0046981 A1Nautel Limited
- Method for estimating a signal-to-noise ratio12 May 2022US 2022/0149875 A1Continental Automotive GmbH
Most cited
By later US patents
- In-band on-channel digital broadcasting method and system229US 5,949,796 A1999
- Method and apparatus for digital audio broadcasting and reception211US 5,315,583 AUSA Digital Radio · 1994
- Method and system for simultaneously broadcasting and receiving digital and analog signals179US 5,956,624 AUSA Digital Radio Partners, L.P. · 1999
- Method and apparatus for digital audio broadcasting and reception158US 5,278,826 AUSA Digital Radio · 1994
- Methods and apparatus for identification and purchase of broadcast digital music and other types of information128US 6,925,489 B1Agere Systems Inc. · 2005