Accession Number : ADD015347

Title :   Non-Linear Data Conversion System for Dynamic Range Digital Signal Processing.

Descriptive Note : Patent, Filed 25 Sep 89, patented 19 Nov 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Koerner, Steve J

Report Date : 19 Nov 1991

Pagination or Media Count : 6

Abstract : The data acquisition portion of a data signal processing system has a non-linear data compression and conversion arrangement and a data decompression and scaling arrangement. The non-linear data compression and conversion arrangement employs graduated reference voltage levels provided by resistors having graduated, unequal values, such as values being related as a geometric progression. The graduated form of the reference voltage levels provide a form of data compression wherein large value and small value measurements will have essentially the same fractional resolution. The data decompression and scaling arrangement can decompress previously compressed digital signals and limit the digital data width of such signals in systems which have input dynamic range requirements greater than their output resolution requirements.

Descriptors :   *DATA ACQUISITION, *DATA COMPRESSION, *SIGNAL PROCESSING, *PATENTS, ACQUISITION, COMPRESSION, CONVERSION, DECOMPRESSION, DYNAMIC RANGE, DYNAMICS, INPUT, MEASUREMENT, OUTPUT, PROCESSING, REQUIREMENTS, RESISTORS, RESOLUTION, SIGNALS, VALUE, VOLTAGE, WIDTH, DIGITAL COMPUTERS

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE