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:
Feb. 11, 2020
Filed:
Feb. 28, 2017
Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;
Stmicroelectronics (Grand Ouest) Sas, Delarue, FR;
Abdelaziz Goulahsen, Coublevie, FR;
Patrice Derouet, Teloché, FR;
STMICROELECTRONICS (GRAND OUEST) SAS, Delarue, FR;
STMICROELECTRONICS (GRENOBLE 2) SAS, Grenoble, FR;
Abstract
A method for reading or writing data at an address of a memory is disclosed. The data includes a number of consecutive words that each has a plurality of bits. The words are transferred to or from the memory in synchronization with a clock signal so that each word is transferred in one cycle of the clock signal. The bits are scrambled or unscrambled by applying a logic function to the bits of each word. The logic function is identical for the scrambling and the unscrambling and makes use of a bit-key that is dedicated to the word and is identical for the scrambling and the unscrambling. Each bit-key comes from a pseudo-random series generated based on the address.