Patent ID: 6430662
Filing Date: 2002-08-06
Classification: G11C

Abstract:
A method of changing and/or inputting data and/or programs into at least one first memory (104, 200) of a computer system (100), the computer system including an input/output interface, said method comprising the steps of:a) dividing the programs into at least one first routine (RR, RB, RF) and at least one second routine (ZR); b) by providing at least one second memory (105,206); c) dividing said at least one first memory (104, 200) into a plurality of memory regions (SB201 to SB204; SB207); d) backing up said at least one second routine (ZR) by copying said at least one second routine (ZR) to said at least one second memory; e) erasing (306) a portion of said memory regions; f) copying (307) said at least one second routine (ZR) to said portion of said memory regions previously erased; and g) erasing (308) the memory region of the at least one first memory that stores said at least one second routine and reprogramming (308) with data read in from said input/output interface, whereby a backup copy of said second routine is provided in at least one of said at least one first memory and said at least one second memory.