| 摘要 |
PURPOSE:To facilitate the storage operation of a registered code as well as to reduce the cost of production in dispensing with superfluous parts for register operation by constituting the storage of the registered code to a memory circuit so as to be performed by utilizing the existing automotive switch. CONSTITUTION:A door locking mechanism 1 utilizes a d.c. motor 1a as an actuator for both unlocking and locking applications, while it uses two relays 4, 5 for a drive circuit 3 for feeding the motor 1a with a current out of a car- mounted battery 2. A receiver 6 for selectively operating these relays 4, 5 is connected so as to be given power from the battery 2, thereby receiving a radio signal being transmitted out of a portable transmitter 7 through an antenna 6a. In the above system, the receiver 6 is selected to a registered code when another existing automotive switch 9 is turned on or off at the specified mode in use of an ignition switch 8. With the registered code, a discriminating code being contained in a receiving signal is stored in a memory circuit 6b as the registered code. |
