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:
Dec. 10, 2019
Filed:
Dec. 21, 2015
Koninklijke Philips N.v., Eindhoven, NL;
Leandro Marin, Eindhoven, NL;
Alphons Antonius Maria Lambertus Bruekers, Nederweert, NL;
Paulus Mathias Hubertus Mechtildus Antonius Gorissen, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An electronic calculating device () arranged to perform obfuscated arithmetic in a commutative ring (Z; Z[x]/M(x)) defined by a combined modulus (M; M(x)) in a residue number system, the residue number system being defined for a series of moduli (m, m, . . . , m), each modulus defining a commutative ring (Z; Z[x]/m(x)), for each modulus (m) of the series there exists an associated base element (u) satisfying the condition that each ring element (x) modulo the modulus (m) may be expressed as an integer-list ((a, b)) such that the ring elements equal a linear combination of powers of the base element (xj=u−u), wherein the powers have exponents determined by the integer-list.