发明名称 |
Vehicular hands-free telephone system |
摘要 |
A voice of user is picked up by a microphone built in a sun visor of a vehicle. The output of microphone is frequency-modulated by an FM transmitter powered by a solar battery and transmitted through a transmitting antenna in a vehicle. The frequency-modulated radio signal is received and demodulated by a receiver with a receiving antenna. The received signal is further transmitted outside of the vehicle through a transceiver.
|
申请公布号 |
US4905270(A) |
申请公布日期 |
1990.02.27 |
申请号 |
US19880284412 |
申请日期 |
1988.12.14 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
ONO, HIDEYO |
分类号 |
B60R11/00;B60R11/02;H04B1/46;H04M1/60;(IPC1-7):H04Q7/04 |
主分类号 |
B60R11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|