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3506953
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Information
Patent Grant
3506953
References
Source
Patent Number
3,506,953
Date Filed
Not available
Date Issued
Tuesday, April 14, 1970
54 years ago
CPC
H03K23/84 - using thyristors or unijunction transistors
G01S1/72 - using ultrasonic, sonic or infrasonic waves
G01S3/8032 - wherein the signals are derived sequentially
G01S3/8083 - determining direction of source
G01S3/84 - with indication presented on cathode-ray tubes
G01S7/62 - Cathode-ray tube displays or other two-dimensional or three-dimensional displays
G01S7/6218 - providing two-dimensional coordinated display of distance and direction
G01S7/6227 - Plan-position indicators
G01S15/101 - Particularities of the measurement of distance
G01S15/14 - wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception
H03F3/72 - Gated amplifiers
H03G3/30 - in amplifiers having semiconductor devices
H03G3/3052 - in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
H03K5/08 - by limiting by thresholding by slicing
H03K5/15 - Arrangements in which pulses are delivered at different times at several outputs
H03K5/15093 - using devices arranged in a shift register
US Classifications
367 - Communications, electrical: acoustic wave systems and devices
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