| 摘要 |
PURPOSE:To permit the communication free from the obtstruction by a cord by installing a car radio communication means onto a telephone receiver and transmitter in demountable ways onto a supporting member installed onto a car body and permitting the communication through the above-mentioned means and a car radio communication means installed onto a car body side. CONSTITUTION:The titled automobile telephone device 2 arranged onto an instrument panel of the driver's seat of a vehicle is constituted of a handset 3 as telephone transmitter and receiver, and a cradle 4 as supporting member for supporting the handset 3 in demountable ways. The handset 3 is equipped with a receiver (speaker) 5 in the upper part and a transmitter (microphone) 6 in the lower part, and in the state where the gain which is selected by operating a mode selecting switch 9 is reduced, the handset 3 can be used as an ordinary telephone receiver and transmitter, and can be used as hand-free microphone by increasing the gain. Telephone transmission and receiving are executed between the handset 3 and cradle 4 through the car radio communication means 26 and 22 installed on the respective devices 3 and 4. |
