Accession Number : ADD000165

Title :   Reduced Bandwidth Processing for Ultrasonic Image Conversion.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rolle,Albert L

Report Date : 29 Jan 1974

Pagination or Media Count : 7

Abstract : The patent relates to an ultrasonic, image conversion, high definition sonar having a multitude of transducer channels employing improved signal processing in each channel to reduce video bandwidth and switching speed requirements. Signal processing is characterized in each of the multitude of channels by detecting and holding the peak return from a transmit pulse for the remainder of the pulse project period, then holding that peak value for the subsequent pulse project period, during which time the value may be multiplexed for conversion to video signals for a CRT display, or may be applied to elements of an LED array.

Descriptors :   *Sonar, *Patents, Signal processing, Bandwidth, Image converters, Light emitting diodes, Cathode ray tubes, Display systems, Ultrasonic radiation

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE