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:
Oct. 04, 2005
Filed:
Jun. 11, 2001
Walter Eugene Pelton, Fremont, CA (US);
K. Walt Herridge, San Jose, CA (US);
Walter Eugene Pelton, Fremont, CA (US);
K. Walt Herridge, San Jose, CA (US);
Other;
Abstract
The present invention provides apparatus, methods, and computer program products for non-iterative division and non-iterative reciprocal generation. In one embodiment, the present invention uses a logic network that determines the bits of the quotient of a divisor and dividend by using a non-iterative, (i.e., non trial and error), method. Further, in another embodiment, the present invention may determine the reciprocal of a number M by separating the number M into at least two numbers X, Y . . . Z so that M=X+Y+ . . . +Z. The reciprocal of M is computed according to an equation 1/M=F(X,Y . . . Z) or an approximation 1/M≈G(X,Y . . . Z), where the approximation gives the correct value of the inverse of M to a predetermined accuracy. In some embodiments, the apparatus uses an equation that exactly describes the reciprocal or instead, it may include one or more memories for storing look-up tables containing pre-calculated parts of the equation.