Accession Number : ADD007192

Title :   Double Precision Residue Combiners/Coders.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bond,James W ; Dressel,Gary A

Report Date : 05 Feb 1980

Pagination or Media Count : 11

Abstract : Apparatus, useful in signal processing, and which can be used for modulo (2 to the n power -1) addition, subtraction, coding, and decoding, has a plurality of 2n input means: n means for receiving a signal I sub 0, I sub 1, ..., I sub n-1, and another n means for receiving a signal J sub 0, J sub 1, ..., J sub n-1. A plurality n of means, connected to the n I signal input means, may switch each input means so that it is connected alternately into one of two connecting points, a first and a second connecting point. A plurality n of means is connected to the n first connecting points, for inverting the polarity of a signal received at its input, the output of the inverting means being connected to its associated second connecting point. A plurality n of three input adding means, has one input connected to the output of the inverting means, and another being connected to an associated means for receiving a J signal, the means adding the two inputs. The plurality n of adding means are circularly connected to each other, by a third input in the manner of a full adder. Means, having its n inputs connected to the n adding means, add the n-inputs in an AND manner. A second means, whose input is connected to the output of the n-input adding means, inverts the signal at its input.

Descriptors :   *Patents, *Electronic combiners, *Coders, Signal processing, Decoders, Modules(Electronics)

Subject Categories : Electrical and Electronic Equipment
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE