G01S 3/80
Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic
Official title: using ultrasonic, sonic or infrasonic waves
G01S3/80 (Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic) appears on 1,394 US grants and 1,219 published applications in this corpus.
Search patents in G01S- Granted patents
- 1,394
- Published applications
- 1,219
- Assignees
- 656
- Inventors
- 2,807
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 10 | 0 |
| 1978 | 9 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 14 | 0 |
| 1991 | 13 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 14 | 0 |
| 1995 | 14 | 0 |
| 1996 | 20 | 0 |
| 1997 | 11 | 0 |
| 1998 | 12 | 0 |
| 1999 | 15 | 0 |
| 2000 | 17 | 0 |
| 2001 | 11 | 2 |
| 2002 | 13 | 10 |
| 2003 | 21 | 19 |
| 2004 | 14 | 18 |
| 2005 | 14 | 19 |
| 2006 | 15 | 18 |
| 2007 | 24 | 20 |
| 2008 | 25 | 19 |
| 2009 | 18 | 26 |
| 2010 | 27 | 29 |
| 2011 | 19 | 41 |
| 2012 | 36 | 48 |
| 2013 | 23 | 59 |
| 2014 | 41 | 48 |
| 2015 | 49 | 43 |
| 2016 | 66 | 69 |
| 2017 | 67 | 53 |
| 2018 | 70 | 66 |
| 2019 | 60 | 97 |
| 2020 | 75 | 86 |
| 2021 | 86 | 111 |
| 2022 | 93 | 83 |
| 2023 | 80 | 90 |
| 2024 | 82 | 67 |
| 2025 | 72 | 53 |
| 2026 | 38 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01S 3/802Systems for determining direction or deviation from predetermined direction1,034
- G01S 3/801Details205
- G01S 3/8006Multi-channel systems specially adapted for direction-finding, i.e. having a single aerial system183
- G01S 3/86With means for eliminating undesired waves83
- G01S 3/82With means for adjusting phase or compensating for time-lag errors23
- G01S 3/8003Diversity systems specially adapted for direction finding16
- G01S 3/84With indication presented on cathode-ray tubes9
Recent patents
- Media playback based on sensor data29 Sep 2026US 12,750,630 B2Sonos, Inc.
- Device, system, and method for tracking an object using radar data and imager data22 Sep 2026US 12,742,852 B2Trackman A/S
- Method for obtaining a position of a sound source18 Aug 2026US 12,710,502 B2Nomono AS
- Artificial intelligence apparatus and method for estimating sound source localization thereof18 Aug 2026US 12,711,200 B2LG Electronics Inc.
- Calibrator for acoustic cameras and other related applications11 Aug 2026US 12,704,400 B2Noiseless Acoustics Oy
- Method for determining a direction from which an emergency vehicle is approaching a vehicle8 Oct 2026US 2026/0309827 A1Mercedes-Benz Group AG
- System and method for tunable acoustic direction sensing using a capacitively coupled circuit1 Oct 2026US 2026/0299074 A1Toyota Jidosha Kabushiki Kaisha
- Sound direction sensor-based acoustic camera and related systems and methods17 Sep 2026US 2026/0276773 A1Toyota Jidosha Kabushiki Kaisha
- Noise camera, server for processing documentary evidence from noise-cameras and methods10 Sep 2026US 2026/0266944 A1Intelligent Instruments Corporation
- Acoustic telescope system and method of using same20 Aug 2026US 2026/0243567 A1Woods Hole Oceanographic Institution
Most cited
By later US patents
- Locating an audio source355US 6,593,956 B1Polycom, Inc. · 2003
- Voice recognition apparatus301US 8,762,145 B2Kabushiki Kaisha Toshiba · 2014
- Determining speaker direction using a spherical microphone array204US 9,560,441 B1Amazon Technologies, Inc. · 2017
- Sound field calibration using listener localization194US 9,084,058 B2Sonos, Inc. · 2015
- Microphone array system185US 8,861,756 B2Li Creative Technologies, Inc. · 2014