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:
Aug. 30, 2016
Filed:
Mar. 17, 2015
Lenovo Enterprise Solutions (Singapore) Pte. Ltd., New Tech Park, SG;
Matthew L. Nickerson, Raleigh, NC (US);
Zachary B. Durham, Durham, NC (US);
William M. Megarity, Raleigh, NC (US);
Brian C. Totten, Durham, NC (US);
LENOVO ENTERPRISE SOLUTIONS (SINGAPORE) PTE. LTD., Singapore, SG;
Abstract
An apparatus for encrypting processor related noise is disclosed. A method and a computer program product also perform the functions of the apparatus. The apparatus includes a frequency selection module that selects frequencies for a first noise output. The frequencies are within a range of frequencies of a second noise output. The second noise output is produced by one or more first voltage regulating modules providing power to a processor. The apparatus includes an amplitude selection module that selects an amplitude for each frequency of the first noise output. The apparatus includes a noise scrambling module that produces the first noise output based on one or both of the frequency selection module and the amplitude selection module. The first noise output combines with the second noise output to produce a third noise output such that coherence between the third noise output and operations of the processor is below a threshold.