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:
Apr. 11, 2006
Filed:
Mar. 22, 2002
Pascal Narche, Peynier, FR;
Pascal Narche, Peynier, FR;
STMicroelectronics S.A., , FR;
Abstract
A device for read protection of at least one area of a non-volatile memory includes an address decoder outputting an addressing signal on one of its output terminals when an the address corresponds to one of the read protected areas of the memory. A state memory is provided for each read protected area to output a state signal indicating whether or not the area is protected in read. A program instructions decoder outputs a program signal indicating whether or not the current addressing operation corresponds to a program instruction. A logic circuit responsive to the addressing signal, the state signal and the program signal outputs an instruction signal to read the read protected area when the program signal indicates that the current addressing operation is applicable to a program instruction.