Optical space transmission system

Abstract

Abstract PURPOSE:To attain 1:N optical space transmission among terminal devices of each room by installing a controller of the semi-duplex communication system and possible for reception of signal and distribution of reflected signal so as to constitute a network. CONSTITUTION:D1-Dn are placed in rooms #1-#3 and T1-Tn are the optical transmitters. The network NW is constituted by using the controller CTL for relay/distribution as the center. Transmission lines L1-L3 connect the CTL and optical transmitters O1-O3 at the NW side. This system is the semiduplex communication system and the optical transmitters O1-O3 are constituted to transmit signals at the same time as the reception. In this system, the data from the NW side optical transmitter O1 is stored once in the CTL and distributed at the same time to all the optical transmitters O1-O3. Since the O1-O3 receive a transmission enable signal RS, the transmitted transmission data SD is transmitted to each room at the same time by the optical signal. This is the same that the other optical transmitters O2, O3 receive the transmission data from the terminal device in the own room and becomes the transmission side. Thus, each terminal device can communicate with the terminal device of the own room and terminal devices in the other rooms.

Inventors

• 👤 Kenjiro Yano
• 👤 健次郎 矢野
• 👤 Takatoshi Minami
• 👤 南　隆敏

Bibliographic Details