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Class Information
Number: 367/95
Name: Communications, electrical: acoustic wave systems and devices > Echo systems > Returned signal used for control
Description: Subject matter wherein the reflected wave effects the regulation, energization, variation, de-energization, or some other operation of a device.

Sub-classes under this class:

Class Number Class Name Patents
367/96 External device 185
367/97 Receiver system 88

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8686326 Optical-flow techniques for improved terminal homing and control Apr. 1, 2014
8593908 Method for determining an echo distance in an acoustic pulse-echo ranging system Nov. 26, 2013
8576664 Moving object detection system Nov. 5, 2013
8528408 Passage detection apparatus of object Sep. 10, 2013
8488411 Microphone proximity detection Jul. 16, 2013
8483012 Controlling method for ultra-sound sensor Jul. 9, 2013
8451689 Ultrasonic apparatus with an adjustable horn May. 28, 2013
8451690 Method of controlling a lighting system with an ultrasonic transceiver May. 28, 2013
8432770 Method and device for detecting the surface character of objects in road traffic or of persons Apr. 30, 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
8189429 Microphone proximity detection May. 29, 2012
8164437 Detection apparatus Apr. 24, 2012
8100013 Passage detection apparatus of object Jan. 24, 2012
8089393 Relating target tracking Jan. 3, 2012
8018793 Edge detecting apparatus and automatic device with same Sep. 13, 2011
7805247 System and methods for well data compression Sep. 28, 2010
7764782 Method and apparatus for routing telecommunication calls Jul. 27, 2010
7707887 Passage detection apparatus of object May. 4, 2010
7525875 Method for all ocean-terrain ships covert velocity reference Apr. 28, 2009
7502712 Preventive defect detection and control process in composite material parts Mar. 10, 2009
7239263 Platform shake compensation method in synthetic aperture processing system Jul. 3, 2007
7187320 Matched maneuver detector Mar. 6, 2007
7049960 Method and system for locating objects May. 23, 2006
6935164 Refiner control Aug. 30, 2005
6909397 Stabilizing motion in a radar detection system using ultrasonic radar range information Jun. 21, 2005
6898977 Ultrasonic distance-measuring method and device May. 31, 2005
6859417 Range finding audio system Feb. 22, 2005
6850186 System for determining position and velocity of targets from signals scattered by the targets Feb. 1, 2005
6731204 Object detection system providing driver information through sound May. 4, 2004
6678209 Apparatus and method for detecting sonar signals in a noisy environment Jan. 13, 2004
6659232 Method and device for position detection of an object along an acoustic-signal conductor Dec. 9, 2003
6542436 Acoustical proximity detection for mobile terminals and other devices Apr. 1, 2003
6505509 Apparatus and method for measuring the level of a fluid Jan. 14, 2003
6480118 Method of drilling in response to looking ahead of drill bit Nov. 12, 2002
6427532 Device for measuring a fill level of a liquid in a container Aug. 6, 2002
6326915 Radar device with multiplexed display functions for use in backing up a vehicle Dec. 4, 2001
6011470 Ultrasound keyboard protection Jan. 4, 2000
5867091 Vehicle security system Feb. 2, 1999
5838636 Underwater vehicle guidance system and method Nov. 17, 1998
5793704 Method and device for ultrasonic ranging Aug. 11, 1998
5666325 Method and apparatus for monitoring and controlling the dispensing of materials onto a substrate Sep. 9, 1997
5636179 Sonic spectrometer and treatment system Jun. 3, 1997
5613940 Synthesizing array for three-dimensional sound field specification Mar. 25, 1997
5577006 Adaptive acoustic signal target detection system Nov. 19, 1996
5573041 Dispenser control with ultrasonic position detection Nov. 12, 1996
5355130 Ultrasonic proximity switch with a synchronizing device Oct. 11, 1994
5239515 Error-eliminating rapid ultrasonic firing Aug. 24, 1993
5220922 Ultrasonic non-contact motion monitoring system Jun. 22, 1993
5187689 Device for selectively detecting a moving object Feb. 16, 1993
5144593 Integrated automatic control for ultrasonic proximity switches Sep. 1, 1992

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