| 摘要 |
PURPOSE:To reduce remarkably the disturbance due to crosstalk by sending a signal between electric circuits mounted to a different package in a unit while using an optical signal by space propagation thereby connecting the circuits at the shortest distance and eliminating the need for an optical connector. CONSTITUTION:In sending a signal from an electric circuit 4 mounted to a package to an electric circuit 5 mounted to other package, the signal is sent directly by an optical path 11 by means of space propagation to a light receiver 7 provided additionally to the input of the circuit from an optical transmitter 6 provided additionally to the signal output of the circuit 4. Thus, the electric circuits mounted to adjacent packages are connected electrically at the shortest distance so as to realize the connection with less talking disturbance. Further, an expensive optical connector is not required in comparison with a system using the optical fiber via a connector board and the system is made inexpensive. |
