Static information storage and retrieval – Floating gate – Data security
Reexamination Certificate
2006-02-28
2006-02-28
Phan, Trong (Department: 2827)
Static information storage and retrieval
Floating gate
Data security
C365S185170, C365S185330
Reexamination Certificate
active
07006377
ABSTRACT:
An apparatus and method for booting a NAND flash memory of a mobile terminal. The apparatus comprises a NAND flash memory, a synchronous dynamic random access memory (SDRAM), a main read only memory (ROM), a main control unit, and a sub-control unit. The NAND flash memory stores an application code necessary for execution of an additional function provided in the mobile terminal, and a secondary program loader (SPL) boot code for access to the application code. The SDRAM stores the SPL boot code and application code sent from the NAND flash memory. The main ROM stores code values for the booting of the NAND flash memory and an initial program loader (IPL) boot code for initial access to the NAND flash memory. The main control unit detects and outputs the IPL boot code from the main ROM in response to a reset signal inputted thereto and then outputs the reset signal. The sub-control unit receives the IPL boot code and reset signal output from the main control unit, drives the received IPL boot code in response to the received reset signal to access the NAND flash memory and receive the SPL boot code therefrom, stores the received SPL boot code in the SDRAM, drives the SPL boot code stored in the SDRAM to access the NAND flash memory and receive the application code therefrom, stores the received application code in the SDRAM, and completes the booting of the NAND flash memory by driving the application code stored in the SDRAM.
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Dilworth & Barrese LLP
Phan Trong
Samsung electronics Co., Ltd.
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