H04B 1/46
By voice-frequency signals
Official title: by voice-frequency signals; by pilot signals
H04B1/46 (By voice-frequency signals) appears on 101 US grants and 38 published applications in this corpus.
Search patents in H04B- Granted patents
- 101
- Published applications
- 38
- Assignees
- 68
- Inventors
- 185
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 4 |
| 2004 | 4 | 4 |
| 2005 | 2 | 2 |
| 2006 | 4 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 3 | 2 |
| 2011 | 2 | 3 |
| 2012 | 2 | 2 |
| 2013 | 5 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 5 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic apparatus and communication apparatus17 Mar 2026US 12,581,020 B2Canon Kabushiki Kaisha
- Audio-driven self powered push to talk (PTT) keying source for soundcard data modems29 Aug 2023US 11,742,885 B1
- Transparent demodulation reference signal design15 Mar 2022US 11,277,243 B2QUALCOMM Incorporated
- Reference signal packing for wireless communications26 May 2020US 10,666,314 B2Cohere Technologies, Inc.
- Radio communication device25 Dec 2018US 10,164,680 B2JVC KENWOOD Corporation
- Electronic apparatus and communication apparatus10 Oct 2024US 2024/0340527 A1Canon Kabushiki Kaisha
- Reference signal packing for wireless communications12 Dec 2019US 2019/0379422 A1Cohere Technologies, Inc.
- Transparent demodulation reference signal design5 Dec 2019US 2019/0372737 A1QUALCOMM Incorporated
- Radio communication device11 Oct 2018US 2018/0294835 A1JVC KENWOOD Corporation
- Mobile terminal apparatus21 Apr 2016US 2016/0112559 A1KYOCERA Corporation
Most cited
By later US patents
- Integrated microphone/pushbutton housing for voice activated cellular phone115US 5,584,052 AFord Motor Company · 1996
- Method and system for CDMA mobile communication101US 5,673,260 ANTT Mobile Communications Network, Inc. · 1997
- Voice-operated remote control system94US 5,226,090 APioneer Electronic Corporation · 1993
- RF repeater arrangement with improved frequency reuse for wireless telephones89US 5,781,859 APCS Solutions, LLC · 1998
- Vehicular hands-free telephone system87US 4,905,270 AMitsubishi Denki Kabushiki Kaisha · 1990