G01S 1/20
Using a comparison of transit time of synchronised signals transmitted from non-directional
Official title: using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
G01S1/20 (Using a comparison of transit time of synchronised signals transmitted from non-directional) appears on 409 US grants and 361 published applications in this corpus.
Search patents in G01S- Granted patents
- 409
- Published applications
- 361
- Assignees
- 200
- Inventors
- 673
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 6 |
| 2004 | 0 | 1 |
| 2005 | 1 | 4 |
| 2006 | 1 | 3 |
| 2007 | 1 | 7 |
| 2008 | 5 | 10 |
| 2009 | 7 | 8 |
| 2010 | 7 | 8 |
| 2011 | 4 | 6 |
| 2012 | 11 | 18 |
| 2013 | 7 | 10 |
| 2014 | 6 | 10 |
| 2015 | 12 | 8 |
| 2016 | 14 | 20 |
| 2017 | 13 | 26 |
| 2018 | 21 | 26 |
| 2019 | 23 | 46 |
| 2020 | 35 | 41 |
| 2021 | 34 | 29 |
| 2022 | 29 | 32 |
| 2023 | 33 | 11 |
| 2024 | 12 | 12 |
| 2025 | 15 | 15 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ultra-wideband location systems and methods6 Oct 2026US 12,756,996 B2Be Spoon
- Tracking a moving radio beacon15 Sep 2026US 12,736,606 B2
- Coded anchors for simple localization8 Sep 2026US 12,730,175 B2Koninklijke Philips N. V.
- Bandwidth indication in positioning measurement reports19 May 2026US 12,634,878 B2QUALCOMM Incorporated
- Loran transmitter, receiver, system and method of operating same5 May 2026US 12,618,927 B2Continental Electronics Corp.
- Loran Transmitter, Receiver, System and Method of Operating Same20 Aug 2026US 2026/0243859 A1Continental Electronics Corp.
- Dynamic application of received signal time difference locating in mobile networks16 Jul 2026US 2026/0202500 A1AT&T Intellectual Property I, L. P.
- Enhanced asset tracking systems and methods for electronic shelf label systems4 Jun 2026US 2026/0153587 A1QUALCOMM Incorporated
- Hybrid position navigation and timing system21 May 2026US 2026/0140266 A1NextNav, LLC
- Distributed localization systems and methods and self-localizing apparatus11 Dec 2025US 2025/0377664 A1Verity AG
Most cited
By later US patents
- System and method for using impulse radio technology to track and monitor vehicles190US 6,501,393 B1Time Domain Corporation · 2002
- Vehicle locating system with Loran-C125US 5,032,845 AD.G.R., Inc. · 1991
- System and method for determining vehicle travel routes and mileage110US 5,974,356 AQUALCOMM Incorporated · 1999
- Method and apparatus for automatically detecting and tracking moving objects and similar applications100US 3,996,590 A1976
- Method for positioning moving vehicles and exchanging communications between the vehicles and a central station82US 4,701,760 ACommissariat A L' Energie Atomique · 1987