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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:
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Patent Number Title Of Patent Date Issued
8705320 Audio localization using multilateration Apr. 22, 2014
8654611 Method for detecting substantially periodic series of bursts of substantially sinusoidal signals Feb. 18, 2014
8644113 Sound-based positioning Feb. 4, 2014
8638641 Real-time robust method for determining the trajectory of one or more cetaceans by means of passive acoustics, using a laptop computer Jan. 28, 2014
8630147 Method of determining position where work is done in space surrounded by surfaces and work result management device Jan. 14, 2014
8625392 Method and system for remote sound speed measurement Jan. 7, 2014
8611188 Method and apparatus for locating at least one object Dec. 17, 2013
8593908 Method for determining an echo distance in an acoustic pulse-echo ranging system Nov. 26, 2013
8588029 Obstacle detection device Nov. 19, 2013
8570834 Method of acoustic ranging Oct. 29, 2013
8555726 Acoustic sensors for detecting shooter locations from an aircraft Oct. 15, 2013
8547798 Micropositioning apparatus Oct. 1, 2013
8531917 Direction of arrival estimation apparatus and method thereof Sep. 10, 2013
8509030 Underwater acoustic positioning system Aug. 13, 2013
8490002 Projected display shared workspaces Jul. 16, 2013
8488413 Indicated position detecting apparatus and indicated position detecting method Jul. 16, 2013
8478319 Feature extraction and data compression system and method for distributed sensor networks Jul. 2, 2013
8400877 Method and apparatus for measuring position of the object using microphone Mar. 19, 2013
8393412 System and method for accurate wellbore placement Mar. 12, 2013
8374055 Acoustic communication and locating devices for underground mines Feb. 12, 2013
8369184 Systems and methods with improved three-dimensional source location processing including constraint of location solutions to a two-dimensional plane Feb. 5, 2013
8324517 Pen transcription system utilizing a spatial filter for limiting interference Dec. 4, 2012
8325563 Systems and methods of locating weapon fire incidents using measurements/data from acoustic, optical, seismic, and/or other sensors Dec. 4, 2012
8320217 Systems and methods for disambiguating shooter locations with shockwave-only location Nov. 27, 2012
8311759 Inline inspection system and method for calibration of mounted acoustic monitoring system Nov. 13, 2012
8300501 Supercavitating projectile tracking system and method Oct. 30, 2012
8289811 System and method for determining location of submerged submersible vehicle Oct. 16, 2012
8279709 Loudspeaker position estimation Oct. 2, 2012
8270632 Sound source localization system and method Sep. 18, 2012
8213264 Method and device of measuring location, and moving object Jul. 3, 2012
8208343 Acoustic ranging by application of linear period modulated sound Jun. 26, 2012
8208344 Method, apparatus or software for determining the location of an acoustic emission emitter in a structure Jun. 26, 2012
8203910 Autonomous ultrasonic indoor location system, apparatus and method Jun. 19, 2012
8194501 Apparatus and method of sniper localization Jun. 5, 2012
8189430 Electronic apparatus operable by external sound May. 29, 2012
8174932 Multimodal object localization May. 8, 2012
8164484 Detection and classification of running vehicles based on acoustic signatures Apr. 24, 2012
8159387 Multi-transmitter interferometry Apr. 17, 2012
8159902 Apparatus and method for localizing sound source in robot Apr. 17, 2012
8160276 Audio system and related method integrated with ultrasound communication functionality Apr. 17, 2012
8154954 Projectile for focusing a kinetic pulse array Apr. 10, 2012
8149649 Self calibrating shooter estimation Apr. 3, 2012
8144545 Acoustic navigation device and method of detecting movement of a navigation device Mar. 27, 2012
8134888 Method and apparatus of location tracking Mar. 13, 2012
8134889 Systems and methods for augmenting gunshot location using echo processing features Mar. 13, 2012
8120994 Digital transcription system utilizing acoustical detectors having apertures with a vertical orientation relative to the work surface Feb. 21, 2012
8111583 Method and apparatus for determining and indicating direction and type of sound Feb. 7, 2012
8064290 Digital transcription system utilizing small aperture acoustical sensors Nov. 22, 2011
8036064 Distance measurement for building automation devices with wireless data communications Oct. 11, 2011
7969820 Mobile object communication and position determination Jun. 28, 2011

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