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3424269
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Information
Patent Grant
3424269
References
Source
Patent Number
3,424,269
Date Filed
Not available
Date Issued
Tuesday, January 28, 1969
55 years ago
CPC
H01Q3/2605 - Array of radiating elements provided with a feedback control over the element weights
G01S1/72 - using ultrasonic, sonic or infrasonic waves
G01S1/786 - the signals being transmitted simultaneously
G01S3/782 - Systems for determining direction or deviation from predetermined direction
G01S3/805 - using adjustment of real or effective orientation of directivity characteristic of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system
G01S13/04 - Systems determining the presence of a target
G10K11/341 - Circuits therefor
H04R2430/20 - Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
US Classifications
367 - Communications, electrical: acoustic wave systems and devices
342 - Communications: directive radio wave systems and devices
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