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Class Information
Number: 367/118
Name: Communications, electrical: acoustic wave systems and devices > Distance or direction finding
Description: Subject matter in which the extent of linear and/or relative angular spacing between an acoustic wave emitter and receiver is determined.

Sub-classes under this class:

Class Number Class Name Patents
367/124 By combining or comparing signals 257
367/119 With beam steering, scanning, or focussing 121
367/128 With electromagnetic wave 144
367/129 With plurality of transducers 167
367/127 With time interval measuring means 301
367/130 With towing 138

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8705319 Apparatus and method for resolving an ambiguity from a direction of arrival estimate Apr. 22, 2014
8692810 Method for determining the location of impacts by acoustic imaging Apr. 8, 2014
8660815 Methods and apparatus for filtering noise in a three-dimensional position measurement system Feb. 25, 2014
8660581 Mobile device indoor navigation Feb. 25, 2014
8659976 Electronic baffling of sensor arrays Feb. 25, 2014
8656781 Method and system for compensation of ultrasonic sensor Feb. 25, 2014
8644113 Sound-based positioning Feb. 4, 2014
8605551 Position determination of a seismic source array Dec. 10, 2013
8593909 Method and apparatus for passive determination of target parameters Nov. 26, 2013
8488411 Microphone proximity detection Jul. 16, 2013
8479059 Radio communication device, radio communication system, program and radio communication method Jul. 2, 2013
8462586 Direction controllable lighting unit with ultrasound Jun. 11, 2013
8451691 Method and apparatus for detecting a launch position of a projectile May. 28, 2013
8416642 Signal processing apparatus and method for removing reflected wave generated by robot platform Apr. 9, 2013
8401513 Proximity sensor, in particular microphone for reception of sound signals in the human audible sound range, with ultrasonic proximity estimation Mar. 19, 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
8354929 Intruder detector and classifier Jan. 15, 2013
8315407 Apparatus and method for localizing sound source in real time Nov. 20, 2012
8311759 Inline inspection system and method for calibration of mounted acoustic monitoring system Nov. 13, 2012
8289154 Devices, systems and method of determining the location of mobile personnel Oct. 16, 2012
8290545 Systems and methods for accelerometer usage in a wireless headset Oct. 16, 2012
8285475 Combined beacon and scene navigation system Oct. 9, 2012
8270632 Sound source localization system and method Sep. 18, 2012
8264909 System and method for depth determination of an impulse acoustic source by cepstral analysis Sep. 11, 2012
8254209 Acoustic wave sensor Aug. 28, 2012
8221337 System and method for monitoring bladder distention in a variety of patients having differing anatomical proportions Jul. 17, 2012
8217766 Vehicle presence notification apparatus Jul. 10, 2012
8213263 Apparatus and method of detecting target sound Jul. 3, 2012
8213265 Method of object tracking in 3D space based on particle filter using acoustic sensors Jul. 3, 2012
8189429 Microphone proximity detection May. 29, 2012
8174932 Multimodal object localization May. 8, 2012
8170234 Deconvolution methods and systems for the mapping of acoustic sources from phased microphone arrays May. 1, 2012
8170282 Technique for ship/wake detection May. 1, 2012
8164981 Ultrasonic distance-measuring sensor with gap and partition between vibrating surfaces Apr. 24, 2012
8165317 Method and system for position detection of a sound source Apr. 24, 2012
8159901 System and method for discriminating a subsurface target in the water from a surface target in the water Apr. 17, 2012
8149156 System and method for estimating location of projectile source or shooter location Apr. 3, 2012
8120993 Acoustic treatment apparatus and method thereof Feb. 21, 2012
8120992 Method for finding range and bearing to underwater object Feb. 21, 2012
8111582 Projectile-detection collars and methods Feb. 7, 2012
8107320 Autonomous sonar system and method Jan. 31, 2012
8098544 Method and system for enhancing accuracy in ultrasonic alignment Jan. 17, 2012
8089827 Method for localizing remote devices, using acoustical and electromagnetic waves Jan. 3, 2012
8060256 Apparatus, method, and medium for localizing moving robot and transmitter Nov. 15, 2011
8050138 Ballistic-acoustic transducer system Nov. 1, 2011
8009841 Handsfree communication system Aug. 30, 2011
8009507 System and method for adaptable aperture planar phased array Aug. 30, 2011
8005237 Sensor array beamformer post-processor Aug. 23, 2011
8005238 Robust adaptive beamforming with enhanced noise suppression Aug. 23, 2011
7975614 Acoustic shotgun system Jul. 12, 2011

1 2 3 4 5

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