| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to enhance the efficiency of a mounting work of a transmitter with regards to the keyless entry system of cars. SOLUTION: An optical signal emitted from an outside key code output device is received with a light receiving and transmitting LED 10 by manipulating a specified operation with an operation switch 15 and the signal is amplified with a key code reception circuit 21. A microcomputer 17, which is incorporated with a RAM, which serves as a key code memory, is designed to store the optical signal. This construction makes it possible to perform the memory work of the key code with a transmitter whose product is in a finished state and upgrades the efficiency of the mounting work of this keyless entry system.</p> |
