| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmitter for controlling automobile door lock capable of more accurately eliminating a transmitting error for rolling code. SOLUTION: A transmitter for controlling an automobile door lock has a EEPROM 2 storing the number of operations as rolling codes in the three storing regions (1), (2) and (3), an adding section which sequentially perform increment for these rolling codes, and a message creating section which creates a message containing coded rolling codes. This message creating section is able to adequately repair the rolling codes even though erroneous rolling codes are stored in part (in (3) for example) of three storing regions (1), (2),(3) of the EEPROM2. Therefore, even though there is an error due to deformed data in part of a plurality of stored rolling codes, adequate rolling codes can be transmitted so that the transmission error can be prevented more definitively.
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