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:
Jun. 16, 2020
Filed:
Dec. 08, 2015
Koninklijke Philips N.v., Eindhoven, NL;
Hendrik Jan Jozef Hubertus Schepers, Veldhoven, NL;
Paulus Mathias Hubertus Mechtildis Gorissen, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A system for hiding a change to a set of variables of a program is provided. A value representing means () represents a value wof a variable vof the variables v, v, . . . , v, wherein w is an element of a set W, by means of a representation rwherein r=E(W, σ), and ris an element of a set of representations Ω(w)={E(vv,s)|s∈Σ}, wherein σis a state variable that is an element of a set Σ and that provides a redundancy to the representation rof wand E is a one-to-one cryptographic mapping from W×Σ to a predetermined set. An action representing means () represents an action on values of variables in a subset V' of V by means of an action on V′ and an action on V\V′, to obtain updated representations. The action on V′ changes the representation rof each variable Vin the set of variables.=(,σ)  (I)Ω()={()|  (II)  (III)