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Class Information
Number: 342/56
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Combined with diverse type radiant energy system > With direction finding
Description: Subject matter including a device used to determine the direction of arrival of remotely transmitted radio signals.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7292179 |
Instantaneous passive range finding |
Nov. 6, 2007 |
| 7224308 |
Identification and location system for personnel and vehicles |
May. 29, 2007 |
| 6861970 |
Wearable vibrating radar detection device |
Mar. 1, 2005 |
| 6816106 |
Identification and location system for personnel and vehicles |
Nov. 9, 2004 |
| 6744397 |
Systems and methods for target location |
Jun. 1, 2004 |
| 6667709 |
Method and apparatus for detecting leaks in buried pipes by using a selected combination of geophysical instruments |
Dec. 23, 2003 |
| 6583750 |
Wide-band radar detector having electronic compass |
Jun. 24, 2003 |
| 6549762 |
Method for estimating arrival direction of desired wave |
Apr. 15, 2003 |
| 6356230 |
INTERROGATORS, WIRELESS COMMUNICATION SYSTEMS, METHODS OF OPERATING AN INTERROGATOR, METHODS OF MONITORING MOVEMENT OF A RADIO FREQUENCY IDENTIFICATION DEVICE, METHODS OF MONITORING MOVEMENT O |
Mar. 12, 2002 |
| 6181272 |
Data communications network |
Jan. 30, 2001 |
| 5945947 |
Synthetic doppler direction finder for use with FSK encoded transmitters |
Aug. 31, 1999 |
| 5724047 |
Phase and time-difference precision direction finding system |
Mar. 3, 1998 |
| 5629704 |
Target position detecting apparatus and method utilizing radar |
May. 13, 1997 |
| 5606325 |
Detection object searching device |
Feb. 25, 1997 |
| 5579009 |
Sensor system |
Nov. 26, 1996 |
| 5512909 |
Method and device for determination of direction |
Apr. 30, 1996 |
| 5430448 |
Object detection system |
Jul. 4, 1995 |
| 5412390 |
Apparatus and method for reducing co-channel interference from a radio frequency signal |
May. 2, 1995 |
| 5365238 |
Precision time measurements |
Nov. 15, 1994 |
| H1123 |
Off-route non-contact system for detecting vehicles |
Dec. 1, 1992 |
| 5077557 |
Surveying instrument with receiver for satellite position-measuring system and method of operation |
Dec. 31, 1991 |
| 4891648 |
Aircraft radar arrangement |
Jan. 2, 1990 |
| 4680587 |
Instrument landing system |
Jul. 14, 1987 |
| 4611209 |
Navigation warning system and method |
Sep. 9, 1986 |
| 4418349 |
Airport surveillance system |
Nov. 29, 1983 |
| 4193073 |
Method and apparatus for position determination |
Mar. 11, 1980 |
| 4126859 |
Ground station for a round-trip-path distance-measuring system |
Nov. 21, 1978 |
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