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:
May. 28, 1991
Filed:
Sep. 17, 1990
William J Ooms, Chandler, AZ (US);
Clifford D Leitch, Coral Springs, FL (US);
Rene M Delgado, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A divider circuit for producing a quotient result within one cycle time is provided. The invention utilizes combinational circuitry for performing a division operation by computing a scaled reciprocal of the denominator, and multiplying the scaled output by a similarly scaled numerator. The denominator is scaled such that it falls within a predetermined range, and the reciprocal value may be looked up from a memory device such as a ROM. The output of the multiplier may also be scaled in order to produce the desired result. The resulting quotient has a controlled error over a wide range of numerator and denominator input values.