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:
Jan. 05, 1993
Filed:
Jul. 19, 1990
Brett L Lindsley, Highwood, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus are described for processing an input value to provide an output exponential value of a desired base raised to the power of the input value. The method includes, and the apparatus included hardware for implementing, the steps of adjusting the input value relative to the input value, a predetermined base of a first exponential value, and the desired base of the output exponential value to obtain a first scaled value, modifying the scaled value to obtain an approximation value, determining the first exponential value of the approximation value, generating an adjusted error value relative to the first scaled value, the approximation value, and a logarithm of the predetermined base of the first exponential value, determining a correction value for the first exponential value and combining the first exponential value with the correction value to obtain, substantially, the output exponential value having the desired base raised to the power of the input value.