Patent ID: 6496978
Filing Date: 2002-12-17
Classification: G06F

Abstract:
A microcomputer control system in which programs incorporated in a microcomputer may be modified based on programs provided from outside of said microcomputer, and wherein version information is appended to each of the programs incorporated in said microcomputer and the programs provided from outside of the microcomputer, said system comprising:means for using said version information to judge which of the programs incorporated in said microcomputer and the programs provided outside of said microcomputer, is newer; and means for using whichever programs are newer, wherein said version information is converted into numeric values to determine, from the magnitude of said version information, which is newer programs or data, wherein identification information is appended to a memory, provided outside of said microcomputer, in which a program or data to be used to modify a program incorporated in said microcomputer is stored, whereby said identification information is used to judge whether the memory conforms to said microcomputer control system, in which the program or data to be modified is stored, wherein storage areas to store said identification information have a fixed address, and wherein several programs or pieces of data incorporated in said microcomputer includes programs or data not having substance.