Static information storage and retrieval – Addressing – Particular decoder or driver circuit
Reexamination Certificate
2006-04-11
2006-04-11
Nguyen, Viet Q. (Department: 2827)
Static information storage and retrieval
Addressing
Particular decoder or driver circuit
C365S230010, C365S230030, C365S230080
Reexamination Certificate
active
07027350
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.
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International Search Report issued in connection with International Application No. PCT/FR02/01018 as completed on Jul. 15, 2002, by the ISA/EP.
Jenkens & Gilchrist P.C.
Nguyen Viet Q.
STMicroelectronics S.A.
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