G01S 1/304
Analogous systems in which a beat frequency, obtained by heterodyning the signals
Official title: {Analogous systems in which a beat frequency, obtained by heterodyning the signals, is compared in phase with a reference signal obtained by heterodyning the signals in a fixed reference point and transmitted therefrom, e.g. LORAC (long range accuracy) or TORAN systems}
G01S1/304 (Analogous systems in which a beat frequency, obtained by heterodyning the signals) appears on 5 US grants and 2 published applications in this corpus.
Search patents in G01S- Granted patents
- 5
- Published applications
- 2
- Assignees
- 3
- Inventors
- 9
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
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| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
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| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for synchronising a location network30 Apr 2024US 11,974,247 B2Locata Corporation Pty Ltd
- Method and apparatus for synchronising a location network28 Jun 2022US 11,375,468 B2Locata Corporation Pty Ltd
- Method of radio-position-finding through determination of phases of electromagnetic waves and receiving device for practicing the method15 Oct 1985US 4,547,777 AMLR Electronique
- Radio navigation system25 Dec 1984US 4,490,722 ATeledyne Industries, Inc.
- Two-channel receiver-indicator for phase radio systems22 Dec 1981US 4,307,401 A
Most cited
By later US patents
- Method of radio-position-finding through determination of phases of electromagnetic waves and receiving device for practicing the method4US 4,547,777 AMLR Electronique · 1985
- Radio navigation system3US 4,490,722 ATeledyne Industries, Inc. · 1984
- Method and apparatus for synchronising a location network1US 11,375,468 B2Locata Corporation Pty Ltd · 2022
- Two-channel receiver-indicator for phase radio systems1US 4,307,401 A1981