| 摘要 |
PURPOSE:To execute the change of a connection point without interrupting the transmission of a data signal in a place where the connection is not changed by performing the ON-OFF control of a light bistable switch to decide the connection place while selectively emitting a control light emitting element in a light emitting element array. CONSTITUTION:A light emitting element array 12 is equipped with tow control light emitting element 11 to a light bistable switch 9, each light emitting is made incident to a first and a second phototransistors. On the other hand, all the cathodes of switches 9 are arranged in common in a light switch array 10, and only the anode is arranged in a horizontal direction. The cross bar transform is performed between an electric signal inputted to an anode wiring 17 connected in the horizontal direction and the electric signal outputted while connected in a vertical direction by a light receiving element 13. Then, since the change of the connection place is performed by control signal light from the light emitting element 11, the data transmission in the place where the change of the connection and in the place where the connection is not changed can simultaneously be performed. |
