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Browse by Category: Main > Communications
Class Information
Number: 367/127
Name: Communications, electrical: acoustic wave systems and devices > Distance or direction finding > With time interval measuring means
Description: Subject matter in which the period of time elapsing between reception of compressional wave signals at separate transducers is measured.


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7602329 Systems and methods of tracking and/or avoiding harm to certain devices or humans Oct. 13, 2009
7599252 Acoustic location of gunshots using combined angle of arrival and time of arrival measurements Oct. 6, 2009
7586812 Systems and methods of identifying/locating weapon fire including return fire, targeting, laser sighting, and/or guided weapon features Sep. 8, 2009
7575371 Temperature sensor and extensometer Aug. 18, 2009
7558156 Acoustic location and enhancement Jul. 7, 2009
7539079 System and method for determining positions of towed marine source-array elements May. 26, 2009
7532542 System and method for improving the efficiency of an acoustic sensor May. 12, 2009
7529153 Positional information detecting method and device May. 5, 2009
7515506 Determination of time-difference of arrival and angle of arrival Apr. 7, 2009
7512036 Underwater acoustic positioning system and method Mar. 31, 2009
7495998 Biomimetic acoustic detection and localization system Feb. 24, 2009
7483336 Device for avoiding obstacles for high-speed multi-hulled watercraft Jan. 27, 2009
7474589 Acoustic location of gunshots using combined angle of arrival and time of arrival measurements Jan. 6, 2009
7453771 Apparatus and method for reducing noise for moveable target Nov. 18, 2008
7433266 Acoustic source localization system and applications of the same Oct. 7, 2008
7411865 System and method for archiving data from a sensor array Aug. 12, 2008
7408840 System and method for disambiguating shooter locations Aug. 5, 2008
7408839 Distance measurement for wireless building automation devices Aug. 5, 2008
7406000 Positioning system using ultrasonic waves and method for operating the same Jul. 29, 2008
7383053 Position estimation of transceivers in communication networks Jun. 3, 2008
7372772 Systems and method for compensation of sensor degradation in shooter detection systems May. 13, 2008
7366056 Depth sounding by acoustic pingers in a seismic spread Apr. 29, 2008
7362653 Underwater geopositioning methods and apparatus Apr. 22, 2008
7362654 System and a method for detecting the direction of arrival of a sound signal Apr. 22, 2008
7362655 Time-synchronous acoustic signal ranging system and method Apr. 22, 2008
7359285 Systems and methods for determining shooter locations with weak muzzle detection Apr. 15, 2008
7315488 Methods and systems for passive range and depth localization Jan. 1, 2008
7305886 Noise detecting apparatus Dec. 11, 2007
7292501 Compact shooter localization system and method Nov. 6, 2007
7289030 Highly portable system for acoustic event detection Oct. 30, 2007
7272073 Method and device for generating information relating to the relative position of a set of at least three acoustic transducers Sep. 18, 2007
7269096 Identification and location of an object via passive acoustic detection Sep. 11, 2007
7266045 Gunshot detection sensor with display Sep. 4, 2007
7233545 System and method for determining the location of an acoustic event Jun. 19, 2007
7190633 Self-calibrating shooter estimation Mar. 13, 2007
7181356 Device and method for analyzing the structure of a material Feb. 20, 2007
7170820 Determination of time difference of arrival in distributed sensor networks Jan. 30, 2007
7162043 Microphone array sound source location system with imaging overlay Jan. 9, 2007
7139222 System and method for protecting the location of an acoustic event detector Nov. 21, 2006
7126877 System and method for disambiguating shooter locations Oct. 24, 2006
7071841 Truck acoustic data analyzer system Jul. 4, 2006
7064669 Electronic tether for portable objects Jun. 20, 2006
7062381 Method and system for determining relative position of mobile vehicles Jun. 13, 2006
7002876 Acoustic-propagation-time measuring apparatus Feb. 21, 2006
6965542 MILES hand grenade Nov. 15, 2005
6925296 Sound-based proximity detector Aug. 2, 2005
6891777 Subsurface borehole evaluation and downhole tool position determination methods May. 10, 2005
6847587 System and method for identifying and locating an acoustic event Jan. 25, 2005
6765356 Control and motor arrangement for use in model train Jul. 20, 2004
6721234 Temporal and spectral spread submarine locator transmitter, and method and installation using same Apr. 13, 2004

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