| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize a program data correction system for a microcomputer- controlled electronic apparatus without unnecessarily increasing the capacity of a nonvolatile memory in the electronic apparatus. SOLUTION: When a television receiver 1 is connected to a program data correction device 5 and power supply to the receiver 1 is turned on, a CPU(central processing unit) 2a of a microcomputer 2 in the receiver 1 works according to a program stored in a program ROM(read only memory) 2c and writes an ID(identification) number denoting the version of the program in the nonvolatile memory 3 in the receiver 1. The correction device 5 accesses the memory 3 in the receiver 1 to read the ID number, and writes correction data corresponding to the ID number in the memory 3 in the receiver 1. The correction data written in a correction data area 3b of the memory 3 are used in place of data of a defective portion in the program, thereby conrolling a system in the receiver 1.</p> |
