G01S 1/40
The apparent movement of the antenna being produced by cyclic sequential energisation
Official title: the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
G01S1/40 (The apparent movement of the antenna being produced by cyclic sequential energisation) appears on 34 US grants and 4 published applications in this corpus.
Search patents in G01S- Granted patents
- 34
- Published applications
- 4
- Assignees
- 13
- Inventors
- 30
- Latest grant
- 22 Apr 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method of generating a radio frequency signal22 Apr 2014US 8,704,712 B2Indra Australia Pty Limited
- DVOR monitor device, and DVOR monitor method31 May 2011US 7,952,520 B2Kabushiki Kaisha Toshiba
- Location system using beacon transmitters19 Aug 2003US 6,608,592 B2Hewlett-Packard Development Company, L. P.
- Crystal oscillator synchronized digital very high frequency omni-range (VOR) instrumentation unit19 Apr 1994US 5,305,010 A
- Method and apparatus for processing synthetic aperture aerial signals14 May 1991US 5,016,019 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
- System and method of generating a radio frequency signal8 Sep 2011US 2011/0215968 A1Indra Australia Pty Limited
- Dvor monitor device, and dvor monitor method9 Jul 2009US 2009/0174602 A1Kabushiki Kaisha Toshiba
- Method and apparatus for determining the position and orientation of an object using a doppler shift of electromagnetic signals7 Oct 2004US 2004/0196184 A1
- Location system using beacon transmitters24 Jul 2003US 2003/0137455 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Tracking and position determination system44US 4,060,809 A1977
- Correlation receiver for doppler microwave landing system24US 4,067,014 AHazeltine Corporation · 1978
- Location system using beacon transmitters22US 6,608,592 B2Hewlett-Packard Development Company, L. P. · 2003
- Antenna system for Doppler VOR ground stations11US 3,972,044 A1976
- Power-dividing and modulating arrangement8US 4,160,960 AU. S. Philips Corporation · 1979