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:
Jul. 09, 1991
Filed:
May. 12, 1989
William E Powell, Raleigh, NC (US);
William B Weeber, Apex, NC (US);
Georges A Roger, St. Michel sur Orge, FR;
Alcatel NA Network Systems Corp., Raleigh, NC (US);
Abstract
A parallel pseudo-random generator emulates a serial pseudo-random generator which in turn is defined by a polynomial of the type 1+x.sup.M + . . . +x.sup.P ; that is, wherein the serial outputs are generated such that the next serial output value is based upon an Exclusive OR combination of at least two preceding serial output values. The parallel pseudo-random generator comprises latches and Exclusive OR gates, the number of latches and Exclusive OR gates each being at least equal to the polynomial order of the serial pseudo-random generator defining polynomial. The outputs of the latches represent the outputs of the parallel pseudo-random generator and may be used to scramble data on parallel data lines. A method is disclosed for determining the interconnects between the latch outputs and the Exclusive OR gate inputs based upon the number of latches and the serial pseudo-random generator defining polynomial.