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:
Nov. 09, 1999
Filed:
Jan. 16, 1998
Craig S Clapp, Boxford, MA (US);
PictureTel Corporation, Andover, MA (US);
Abstract
In a finite state machine having a plurality of registers, a stream of pseudo-random numbers is generated by a method having characteristic non-zero integral value N. Repeatedly, over a series of time steps, a set of N combined values is calculated by applying N non-linear combining functions to N input sets of values and registering each combined value in one of N registers. At any time step after N time steps each input set consists of combined values, except that one input set may include as one value the result of combining a combined value with a value from an input stream, and at least two input sets comprise only registered values from distinct registers.