| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical communication speech system where a cellular phone can make a hands-free speech and no connection cord is required. SOLUTION: The optical communication speech system consists of an transmitter signal processing unit A provided with an optical signal transmission section 10 that amplifies a voice signal of a cellular phone terminal, coverts the amplified voice signal into an optical signal and transmits the optical signal and with a voice input section 20 that receives an external voice, converts it into a voice signal, amplifies the voice signal and outputs the amplified signal to the cellular phone terminal 1, and of a receiver signal processing unit B that receives the optical signal from the transmitter signal processing unit A, converts it into an electric signal, amplifies it and outputs it in voice. Light is used for communication between the transmitter signal processing unit A and the receiver signal processing unit B. |
