G01S 3/28
Using amplitude comparison of signals derived simultaneously from receiving antennas or antenna
Official title: using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
G01S3/28 (Using amplitude comparison of signals derived simultaneously from receiving antennas or antenna) appears on 352 US grants and 280 published applications in this corpus.
Search patents in G01S- Granted patents
- 352
- Published applications
- 280
- Assignees
- 244
- Inventors
- 828
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 3 |
| 2002 | 6 | 6 |
| 2003 | 4 | 3 |
| 2004 | 4 | 5 |
| 2005 | 5 | 6 |
| 2006 | 3 | 6 |
| 2007 | 9 | 7 |
| 2008 | 6 | 7 |
| 2009 | 4 | 6 |
| 2010 | 6 | 6 |
| 2011 | 5 | 5 |
| 2012 | 4 | 11 |
| 2013 | 9 | 10 |
| 2014 | 9 | 13 |
| 2015 | 6 | 9 |
| 2016 | 7 | 9 |
| 2017 | 11 | 18 |
| 2018 | 20 | 26 |
| 2019 | 17 | 18 |
| 2020 | 26 | 23 |
| 2021 | 25 | 27 |
| 2022 | 16 | 11 |
| 2023 | 13 | 11 |
| 2024 | 8 | 10 |
| 2025 | 13 | 14 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for measuring azimuth of base station antenna6 Oct 2026US 12,754,275 B2Huawei Technologies Co., Ltd.
- Methods and devices for estimating the position of an RF source11 Aug 2026US 12,707,429 B2Silvus Technologies, Inc.
- Direction determining for over-the-air testing of a radio transceiver device19 May 2026US 12,631,709 B2Telefonaktiebolaget LM Ericsson (publ)
- Positioning method, device, robot and readable storage medium10 Mar 2026US 12,571,876 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Apparatus and method for robust indoor/outdoor object localization and tracking using multiple antennas17 Feb 2026US 12,556,882 B2
- Golf club head with improved striking face24 Sep 2026US 2026/0287703 A1Acushnet Company
- Systems, methods and apparatus for determining object position17 Sep 2026US 2026/0276772 A1
- Location determination based on a plurality of directional beams13 Aug 2026US 2026/0239284 A1Juniper Networks, Inc.
- Direction finding for omni-directional antenna systems9 Jul 2026US 2026/0196742 A1Dish Wireless L. L. C.
- System and method for auto detecting travel direction of authorized users through an access point of a security system25 Jun 2026US 2026/0179422 A1Honeywell International Inc.
Most cited
By later US patents
- Vehicle tracking system518US 5,218,367 ATrackmobile LLC · 1993
- Tracking system and method for tracking a movable object carrying a cellular phone unit, and integrated personal protection system incorporating the tracking system511US 5,515,419 ATrackmobile LLC · 1996
- Estimating angle measurements for source tracking using a phased array system371US 9,989,633 B1Cypress Semiconductor Corporation · 2018
- Locating external interference in a wireless network308US 11,101,903 B2Spectrum Effect Inc. · 2021
- Radar systems222US 5,926,128 AThe Marconi Company Limited · 1999