H04H 40/45
For fm stereophonic broadcast systems receiving
Official title: for FM stereophonic broadcast systems receiving
H04H40/45 (For fm stereophonic broadcast systems receiving) appears on 209 US grants and 124 published applications in this corpus.
Search patents in H04H- Granted patents
- 209
- Published applications
- 124
- Assignees
- 106
- Inventors
- 291
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 11 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 8 |
| 2003 | 2 | 7 |
| 2004 | 2 | 7 |
| 2005 | 3 | 1 |
| 2006 | 7 | 10 |
| 2007 | 4 | 9 |
| 2008 | 4 | 5 |
| 2009 | 2 | 4 |
| 2010 | 9 | 3 |
| 2011 | 11 | 12 |
| 2012 | 9 | 7 |
| 2013 | 8 | 8 |
| 2014 | 7 | 9 |
| 2015 | 12 | 3 |
| 2016 | 8 | 4 |
| 2017 | 4 | 4 |
| 2018 | 8 | 3 |
| 2019 | 3 | 3 |
| 2020 | 6 | 4 |
| 2021 | 5 | 5 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Radio apparatus for a vehicle and a control method thereof22 Sep 2026US 12,744,609 B2Hyundai Motor Company
- Reception device4 Mar 2025US 12,244,405 B2Panasonic Automotive Systems Co., Ltd.
- Methods, circuits, systems and apparatus providing audio sensitivity enhancement in a wireless receiver, power management and other performances27 Aug 2024US 12,074,622 B2Texas Instruments Incorporated
- Methods, circuits, systems and apparatus providing audio sensitivity enhancement in a wireless receiver, power management and other performances4 Jul 2023US 11,695,440 B2Texas Instruments Incorporated
- Method of demodulation of a stereophonic signal28 Feb 2023US 11,595,068 B2Continental Automotive France
- 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
- Removal of spatial artifacts from audio12 Feb 2026US 2026/0046578 A1Google Inc.
- Radio apparatus for a vehicle and a control method thereof11 Dec 2025US 2025/0379674 A1Hyundai Motor Company
- Methods, circuits, systems and apparatus providing audio sensitivity enhancement in a wireless receiver, power management and other performances7 Nov 2024US 2024/0372573 A1Texas Instruments Incorporated
- Methods, circuits, systems and apparatus providing audio sensitivity enhancement in a wireless receiver, power management and other performances19 Oct 2023US 2023/0336200 A1Texas Instruments Incorporated
Most cited
By later US patents
- Entertainment system with bandless tuning226US 7,885,622 B2Chestnut Hill Sound, Inc. · 2011
- Method and apparatus for digital audio broadcasting and reception211US 5,315,583 AUSA Digital Radio · 1994
- Method and apparatus for digital audio broadcasting and reception158US 5,278,826 AUSA Digital Radio · 1994
- Radio receiver having an adaptive equalizer and method therefor67US 6,993,311 B2Freescale Semiconductor, Inc. · 2006
- Method and apparatus for digital audio broadcasting and reception63US 5,278,844 AUSA Digital Radio · 1994