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Browse by Category: Main > Communications
Class Information
Number: 367/108
Name: Communications, electrical: acoustic wave systems and devices > Echo systems > Distance or direction finding > With indicator > Digital readout
Description: Subject matter in which the indicator displays the distance or direction in numerical (as opposed to analog) form.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7973705 Marine bump map display Jul. 5, 2011
7817805 System and method for steering the directional response of a microphone to a moving acoustic source Oct. 19, 2010
6847586 Portable human height measuring device Jan. 25, 2005
6542085 Distance measuring and monitoring device equipped automobile reverse radar Apr. 1, 2003
6208588 Depth sphere Mar. 27, 2001
5940012 Collision avoidance system and method for operating the same Aug. 17, 1999
5793308 Vehicular position monitoring system with integral mirror video display Aug. 11, 1998
5737963 Ultrasonic transducer Apr. 14, 1998
5459479 Solid state depth locator having liquid crystal display Oct. 17, 1995
5327398 Fishfinder with readout of bottom coverage Jul. 5, 1994
5303205 Vehicular distance measuring system with integral mirror display Apr. 12, 1994
5187688 Method of counting the number of passers-by Feb. 16, 1993
5148411 Distance measurement device Sep. 15, 1992
5062087 Hand held electronic grading level Oct. 29, 1991
4974215 Loading dock range finding system Nov. 27, 1990
4953141 Sonic distance-measuring device Aug. 28, 1990
4928525 Sonic tank inventory control system and method May. 29, 1990
4837750 Apparatus for displaying depth sounding data with nautical range Jun. 6, 1989
4831604 Ultrasonic range finding May. 16, 1989
4829493 Sonar fish and bottom finder and display May. 9, 1989
4829492 Depthfinder with color LCD display May. 9, 1989
4731762 Distance sensing apparatus Mar. 15, 1988
4674073 Reflective object detecting apparatus Jun. 16, 1987
4651309 Fish sonar Mar. 17, 1987
4649527 Ultrasonic proximity switch Mar. 10, 1987
4644513 Electrical circuits for timing signals Feb. 17, 1987
4644512 Sonar depth finder with relative depth LCD display Feb. 17, 1987
4621348 Talking depth sounder Nov. 4, 1986
4616350 Talking depth sounder Oct. 7, 1986
4597069 Depthsounder/fish finder Jun. 24, 1986
4584676 Method of and apparatus for pipe length measurement Apr. 22, 1986
4578997 Time-shaped AGC for ultrasonic liquid level meter of the echo-ranging type Apr. 1, 1986
4574368 Distance measuring system using ultrasonic ranging Mar. 4, 1986
4572253 Automatic level sensing system Feb. 25, 1986
4569037 Apparatus for determining the distance from a predetermined point to a target Feb. 4, 1986
4528679 Automatic counting system for passages Jul. 9, 1985
4518253 Distance measurement system May. 21, 1985
4510587 Method and arrangement for the evaluation of signals from an ultrasonic displacement path measuring system Apr. 9, 1985
4506354 Ultrasonic position detecting system Mar. 19, 1985
4500977 Method and apparatus for measuring a distance using ultrasonic echo signals, particularly for use on a motor vehicle Feb. 19, 1985
4493065 Web position indicator Jan. 8, 1985
4479207 Load detecting system for automatic storage apparatus Oct. 23, 1984
4470299 Ultrasonic liquid level meter Sep. 11, 1984
4468959 Method and apparatus for tallying pipe Sep. 4, 1984
4464738 Sonar distance sensing apparatus Aug. 7, 1984
4439844 Salmon counter with separate king salmon tabulator Mar. 27, 1984
4439846 Sonar rangefinder system Mar. 27, 1984
4420751 Detection method and apparatus for a user device or automatic teller bank machine Dec. 13, 1983
4420824 Sonar apparatus having improved gain control Dec. 13, 1983
4413518 Apparatus and method for measuring the extension of bolts under stress Nov. 8, 1983

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