G01S 3/74
Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system
Official title: Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals (systems in which the directions of different signals are determined sequentially and displayed simultaneously G01S3/04, G01S3/14)
G01S3/74 (Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system) appears on 435 US grants and 414 published applications in this corpus.
Search patents in G01S- Granted patents
- 435
- Published applications
- 414
- Assignees
- 222
- Inventors
- 816
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 0 |
| 2002 | 5 | 4 |
| 2003 | 11 | 18 |
| 2004 | 14 | 9 |
| 2005 | 5 | 8 |
| 2006 | 9 | 11 |
| 2007 | 5 | 15 |
| 2008 | 16 | 14 |
| 2009 | 15 | 25 |
| 2010 | 18 | 23 |
| 2011 | 25 | 24 |
| 2012 | 19 | 29 |
| 2013 | 15 | 15 |
| 2014 | 24 | 15 |
| 2015 | 15 | 18 |
| 2016 | 13 | 20 |
| 2017 | 8 | 11 |
| 2018 | 21 | 19 |
| 2019 | 23 | 17 |
| 2020 | 20 | 21 |
| 2021 | 22 | 35 |
| 2022 | 21 | 13 |
| 2023 | 19 | 14 |
| 2024 | 20 | 14 |
| 2025 | 10 | 13 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid ranging18 Aug 2026US 12,710,501 B2Cisco Technology, Inc.
- Method and apparatus for determining positioning parameter, device and storage medium11 Aug 2026US 12,704,580 B2Purple Mountain Laboratories
- Systems, methods, and apparatus for estimating angle of arrival24 Feb 2026US 12,560,669 B2The Boeing Company
- Method for estimating direction of arrival of sub-array partition type l-shaped coprime array based on fourth-order sampling covariance tensor denoising3 Feb 2026US 12,540,996 B2Zhejiang University
- Geolocation of digital wireless signals via remodulated side-channel3 Feb 2026US 12,543,146 B2L3Harris Technologies, Inc.
- Method and device for sensing synchronization, and computer-readable medium20 Aug 2026US 2026/0243884 A1Zte Corporation
- Method and apparatus for determining position of client, and processor30 Jul 2026US 2026/0222770 A1Tp-Link Corporation Limited
- Diagonalized spatial smoothing coherent doa estimation method based on non-circular signals9 Jul 2026US 2026/0194618 A1Hangzhou Dianzi University
- Multi-sensor pulse clustering18 Jun 2026US 2026/0169115 A1BAE Systems Information and Electronic Systems Integration Inc.
- Rf signal angle of arrival identification with adjustable antenna array7 May 2026US 2026/0126510 A1Viavi Solutions Inc.
Most cited
By later US patents
- Multi-path mitigation in rangefinding and tracking objects using reduced attenuation RF technology303US 8,305,215 B2Invisitrack, Inc. · 2012
- Cochannel signal processing system277US 6,018,317 ATRW Inc. · 2000
- Communication apparatus for transmitting and receiving signals over a fiber-optic waveguide using different frequency bands of light229US 6,310,704 B1TRW Inc. · 2001
- System and method for cumulant-based geolocation of cooperative and non-cooperative RF transmitters219US 7,187,326 B2Harris Corporation · 2007
- Method and apparatus for complex phase equalization for use in a communication system176US 6,215,983 B1TRW Inc. · 2001