Accession Number : ADD009585

Title :   High-Accuracy Multipliers Using Analog and Digital Components.

Descriptive Note : Patent,


Personal Author(s) : Bond,James W ; Whitehouse,Harper J

Report Date : 08 Jun 1982

Pagination or Media Count : 7

Abstract : An apparatus multiplies two sequences of digital numbers ai and bi, which may represent signal pulses of various amplitudes. A first plurality of tread-only memories (ROMs), have a common input adapted to receive the sequence of numbers ai, each ROM coding the numbers ai into aij=aj modulo mi, 0 less than or equal to aj,i less than or equal to mi-1. A first plurality of t means, extend the digital signal with zero values, the number of zeroes being determined by the length N of the sequences being convolved. A first plurality of t D/A converters, convert the digital quantity received from the extender into its corresponding analog value.

Descriptors :   *Patents, *Digital to analog converters, *Analog to digital converters, *Arithmetic units, *Multiplication, Accuracy, Circuits, Serial processors, Computations, Numbers, Pulse amplitude, Read only memories, Sequences

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE