Accession Number : ADD010799

Title :   Floating-Point A/D and D/A Converter.

Descriptive Note : Patent,


Personal Author(s) : Davies,K E

Report Date : 16 Mar 1981

Pagination or Media Count : 8

Abstract : This invention improves the digitizing of analog signals over a wide dynamic range for a floating point decimal conversion. The widely fluctuating input analog voltages are converted to currents to prevent saturation of circuit elements and are, first, compared with a derived reference signal to produce positive voltages or negative voltages if the input signal exceeds or is less than the derived reference current. The positive and negative voltages are fed to a combined floating point processing unit and microprocessor which generates two groups of digital signals. The floating point analog-to-digital conversion has the great advantage over linear, analog arithmetic conversion by being able to handle large dynamic ranges of analog input signals.

Descriptors :   *Patents, *Analog to digital converters, *Digital to analog converters, *Floating point operation, Microprocessors, Dynamic range, Schematic diagrams, Circuits, Voltage, Data rate

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE