The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 1985
Filed:
Nov. 16, 1982
James L Burrows, Merrimack, NH (US);
Abstract
A variable radix processor is constructed on 1.25 micrometer CMOS/SOS. The processor, based upon a predetermined algorithm, is constructed to process radix 2 to 7 data wherein the data is input in a parallel-by-word, parallel-by-bit format. A format selection switch has the data input whereafter a plurality of switches outputs an address format to a bit-slice multiply-adder. The bit slice multiply-adder has ROMs addressed by the format selection switch. Based upon the predetermined algorithm, each unique address format causes the ROMs to output a unique word in parallel bits to a tally cascade circuit and then to a fast-carry adder. The processor can operate on a transfer function such as Z.sub.A =.+-.(A.+-.C), Z.sub.B =B where A=.SIGMA.a.sub.i X.sub.i, B=b.sub.i X.sub.i with very high throughput rates such as 380 million operations per second.