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. 03, 2006
Filed:
Jun. 11, 2003
Joerg Georg Appinger, Aidlingen, DE;
Michael Juergen Kessler, Herrenberg, DE;
Manfred Schmidt, Schoenaich, DE;
Joerg Georg Appinger, Aidlingen, DE;
Michael Juergen Kessler, Herrenberg, DE;
Manfred Schmidt, Schoenaich, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A plurality of pseudo random bit-pattern generators (PRPGs), advantageously linear feedback shift registers (LFSRs), having predetermined lengths and individual different tap locations for providing a respective sequence of pseudorandom bit-patterns. An output from a predetermined respective tap location at each LFSR is fed to a common OR-gate, a selected subset of the LFSRs are initialized with all bit storing locations to '0' in order to generate a respective permanent '0'-bit sequence, and the output of the OR-gate is used for reading the weighted or flat random bit output-pattern thereof. By controlling the number of zero-set LFSRs—a subset of the LFSRs—the weight of the generated output-pattern can be controlled.