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Class Information
Number: 342/129
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining distance > With frequency modulation > Plural frequencies transmitted
Description: Subject matter including the transmission of two or more discrete frequency modulated radar carrier signals.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619558 |
Clock pulse control device of a microwave pulse radar |
Nov. 17, 2009 |
| 7605744 |
Method for extension of unambiguous range and velocity of a weather radar |
Oct. 20, 2009 |
| 7574732 |
Object location based security using RFID |
Aug. 11, 2009 |
| 7548181 |
Earth-penetrating radar with inherent near-field rejection |
Jun. 16, 2009 |
| 7535408 |
Apparatus and methods for detection of multiple targets within radar resolution cell |
May. 19, 2009 |
| 7528768 |
Radar device |
May. 5, 2009 |
| 7508337 |
Radar apparatus and signal processing method |
Mar. 24, 2009 |
| 7495598 |
Methods and systems for avoidance of partial pulse interference in radar |
Feb. 24, 2009 |
| 7495604 |
Electronic scanning radar apparatus |
Feb. 24, 2009 |
| 7460052 |
Multiple frequency through-the-wall motion detection and ranging using a difference-based estimation technique |
Dec. 2, 2008 |
| 7439862 |
Antenna array for an RFID reader compatible with transponders operating at different carrier frequencies |
Oct. 21, 2008 |
| 7436350 |
Combined aircraft TCAS/transponder with common antenna system |
Oct. 14, 2008 |
| 7312742 |
Computerized tomography using radar |
Dec. 25, 2007 |
| 7295147 |
Sensor arrangement and method for regulating the distance of motor vehicles |
Nov. 13, 2007 |
| 7205932 |
Method and apparatus for improved determination of range and angle of arrival utilizing a two tone CW radar |
Apr. 17, 2007 |
| 7205931 |
Method for determining the distance between a base station and a mobile object, in addition to a base station and identification system for a method of this type |
Apr. 17, 2007 |
| 7158076 |
Method and apparatus for correcting velocity-induced range estimate phase errors in a two-tone monopulse CW radar |
Jan. 2, 2007 |
| 7151476 |
Radar system having a beamless emission signature |
Dec. 19, 2006 |
| 7145502 |
Distance measurement method and device |
Dec. 5, 2006 |
| 7138939 |
Radar |
Nov. 21, 2006 |
| 7119738 |
Object location system and method using RFID |
Oct. 10, 2006 |
| 7119737 |
Microwave sensor |
Oct. 10, 2006 |
| 7079071 |
Radar apparatus |
Jul. 18, 2006 |
| 7061428 |
Frequency hopping range estimation with low power consumption |
Jun. 13, 2006 |
| 7026931 |
Microwave sensor |
Apr. 11, 2006 |
| 7002512 |
FM-CW radar system which discriminates between signals related to a target object and signals not related to a target object |
Feb. 21, 2006 |
| 6972710 |
Automotive radio wave radar and signal processing |
Dec. 6, 2005 |
| 6965341 |
High resolution SAR processing using stepped-frequency chirp waveform |
Nov. 15, 2005 |
| 6924762 |
Radar designed to acquire radar data with high accuracy |
Aug. 2, 2005 |
| 6888491 |
Pulse-radar method and pulse-radar sensor and system |
May. 3, 2005 |
| 6861974 |
Clutter normalization by adaptation of transmit waveform |
Mar. 1, 2005 |
| 6861972 |
Object detection apparatus and method |
Mar. 1, 2005 |
| 6859167 |
Method for increasing the unambiguous distance in FSK radars |
Feb. 22, 2005 |
| 6756933 |
Radar system and characteristic adjustment method thereof |
Jun. 29, 2004 |
| 6750809 |
High resolution SAR processing using stepped frequency chirp waveform |
Jun. 15, 2004 |
| 6738313 |
System for detecting distances using chaotic signals |
May. 18, 2004 |
| 6703967 |
Distance measuring device |
Mar. 9, 2004 |
| 6686871 |
Method for HPRF-radar measurement |
Feb. 3, 2004 |
| 6664920 |
Near-range microwave detection for frequency-modulation continuous-wave and stepped frequency radar systems |
Dec. 16, 2003 |
| 6657582 |
Radar apparatus capable of measuring a plurality of objects that are in close proximity |
Dec. 2, 2003 |
| 6639546 |
Radar system in which range ambiguity and range eclipsing are reduced by frequency diversity and alternation of pulse periodicity |
Oct. 28, 2003 |
| 6606052 |
Method and apparatus for detecting multiple objects with frequency modulated continuous wave radar |
Aug. 12, 2003 |
| 6577270 |
Radar transceiver |
Jun. 10, 2003 |
| 6492938 |
Method of associating target data in a multi-slope FMCW radar system |
Dec. 10, 2002 |
| 6415230 |
Method and apparatus for assisting vehicle operator braking action of a vehicle |
Jul. 2, 2002 |
| 6373427 |
Radar distance measuring device |
Apr. 16, 2002 |
| 6184817 |
Master frequency generator |
Feb. 6, 2001 |
| 6166681 |
Measuring the thickness of materials |
Dec. 26, 2000 |
| 6127965 |
Method and apparatus for rejecting rain clutter in a radar system |
Oct. 3, 2000 |
| 6094157 |
Oblique scanning ground penetrating radar |
Jul. 25, 2000 |
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