Static information storage and retrieval – Floating gate – Data security
Reexamination Certificate
2006-06-27
2006-06-27
Nguyen, Tuan T. (Department: 2824)
Static information storage and retrieval
Floating gate
Data security
C365S201000, C365S195000
Reexamination Certificate
active
07068538
ABSTRACT:
A memory circuit comprising a memory area for storing data, a non-volatile memory area for storing at least one identification code, and a pin for storing the identification code in the non-volatile memory area. The memory circuit further comprising a programmable register in which a programmable state is fixed, wherein the programmable state indicates if the identification code has been stored in the non-volatile memory area, and a logic module which blocks any subsequent changes to the identification code fixed in the non-volatile memory area in response to the programmable state in the programmable register indicating that the identification code has been stored in the non-volatile area. The invention also relates to an associated method. The invention is useful particularly to avoid fraudulent reprogramming of the area containing the identification code. The invention also relates to an associated method.
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French Preliminary Search Report dated Apr. 19, 2004 for French Application No. 03 09987.
Fleit Kain Gibbons Gutman Bongini & Bianco P.L.
Gibbons Jon A.
Jorgenson Lisa K.
Nguyen Tuan T.
STMicroelectronics S.A.
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