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:
Apr. 27, 1999
Filed:
Feb. 26, 1997
Applicant:
Inventor:
Stephen G Osborn, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36471801 ;
Abstract
A method and apparatus for approximating a sigmoidal response using digital circuitry for neural network computations. The digital circuitry in processing element (16) produces the neuron output signal (110) by performing a squashing operation which determines an approximation of a sigmoid function. In one form, the present invention uses digital circuitry (16) in data processor (10) to approximate a sigmoid function of a neuron (100) using a plurality of parabolas. In an alternate embodiment, the sigmoid function of neuron (100) is approximated using a quasi-log.sub.2 function.