| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent an electronic apparatus sharing parts from being modified illegally. <P>SOLUTION: If either nonvolatile memory is in an initial state, a CPU writes program identification information stored in advance to the initialized nonvolatile memory, and writes a copy flag indicating a new replacement. Before writing the program identification information to either nonvolatile memory, the CPU determines whether the other writing source memory has the copy flag written thereto, and prohibits rewriting the program identification information in response to a determination result (if the copy flag has been written). <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
