| 摘要 |
PURPOSE:To realize the services for the car telephone and only for call-out, by securing the detachable incoming channel reception part independently of the originating and talking transmission/reception parts and then providing the control part where the same number as the car telephone is received and then discriminated. CONSTITUTION:With removal of incoming channel reception part 18, the antenna is connected to reception part 14 by the antenna connecting switch. And the output of the oscillating circuit connected by the local oscillating circuit is applied to multiplying circuit 21, and the output of circuit 21 is applied to part 14 in the form of the local oscillation output. The output of part 14 is applied to control part 24 to carry out the decision of the incoming signal. Function button 31 for call-out service register is pushed before reception part 18 is detached from the main body in order to register the call-out service into the base station. The own car's telephone number is stored into memory circuit 25, and this memory content is collated to the incoming telephone number by the incoming channel. And the ringing tone is produced when the coincidence is obtained in the above collation. |
