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:
Sep. 24, 2019
Filed:
May. 13, 2016
Oracle International Corporation, Redwood City, CA (US);
Josephus Ebergen, San Francisco, CA (US);
Dmitry Nadezhin, Moscow, RU;
Christopher Olson, Austin, TX (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Control circuitry coupled to a multiply unit which includes a plurality of stage, each of which may be configured to perform a corresponding arithmetic function, may be configured to retrieve a given entry from a lookup table dependent upon a first portion of a binary representation of an input operand. An error value of an error function evaluated dependent upon a lookup value in a given entry of the plurality of entries is included in a predetermined error range. The control circuitry may be further configured to determine an initial approximation of a result of an iterative arithmetic operation using the first entry and initiate the iterative arithmetic operation using the initial approximation and the input operand.