H04B 1/1646
Adapted for the reception of stereophonic signals
Official title: {adapted for the reception of stereophonic signals}
H04B1/1646 (Adapted for the reception of stereophonic signals) appears on 430 US grants and 200 published applications in this corpus.
Search patents in H04B- Granted patents
- 430
- Published applications
- 200
- Assignees
- 180
- Inventors
- 580
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 15 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 15 | 0 |
| 1981 | 12 | 0 |
| 1982 | 5 | 0 |
| 1983 | 10 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 13 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 18 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 4 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 4 |
| 2002 | 4 | 10 |
| 2003 | 5 | 9 |
| 2004 | 7 | 9 |
| 2005 | 4 | 13 |
| 2006 | 12 | 11 |
| 2007 | 8 | 10 |
| 2008 | 5 | 13 |
| 2009 | 5 | 10 |
| 2010 | 14 | 4 |
| 2011 | 8 | 10 |
| 2012 | 13 | 5 |
| 2013 | 13 | 10 |
| 2014 | 5 | 7 |
| 2015 | 14 | 5 |
| 2016 | 15 | 10 |
| 2017 | 8 | 8 |
| 2018 | 9 | 10 |
| 2019 | 6 | 2 |
| 2020 | 5 | 5 |
| 2021 | 3 | 9 |
| 2022 | 6 | 8 |
| 2023 | 6 | 8 |
| 2024 | 7 | 6 |
| 2025 | 3 | 2 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Audio playback management of multiple concurrent connections15 Sep 2026US 12,738,966 B2Sonos, Inc.
- Method, device and software for applying an audio effect26 May 2026US 12,640,130 B2Algoriddim GmbH
- Antenna attitude fast measurement system and method thereof21 Apr 2026US 12,609,776 B2Xi'an Institute of Optics and Precision Mechanics of Cas
- Full duplex adaptive array24 Mar 2026US 12,587,352 B2TM IP Holdings, LLC
- Method and device for decomposing, recombining and playing audio data20 Jan 2026US 12,531,042 B2Algoriddim GmbH
- Removal of spatial artifacts from audio12 Feb 2026US 2026/0046578 A1Google Inc.
- Ai-based dj system and method for decomposing, mixing and playing of audio data5 Feb 2026US 2026/0037215 A1Algoriddim GmbH
- Audio Playback Management of Multiple Concurrent Connections26 Jun 2025US 2025/0211274 A1Sonos, Inc.
- Antenna attitude fast measurement system and method thereof20 Mar 2025US 2025/0096911 A1Xi'an Institute of Optics and Precision Mechanics of Cas
- 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
Most cited
By later US patents
- Digital receiver operating at sub-nyquist sampling rate113US 4,893,341 AAT&E Corporation · 1990
- Compatible stereophonic receiver99US 4,016,366 ASansui Electric Co., Ltd. · 1977
- Multibroadcast receiver for extracting desired broadcast information based on an identification code87US 5,857,149 AKabushiki Kaisha Media Marketing Network · 1999
- Method of simulating broadband internet content downloads85US 6,473,792 B12002
- Adaptive expanders for FM stereophonic broadcasting system utilizing companding of difference signal64US 4,602,381 ACBS Inc. · 1986