Title:
OPTICAL SIGNAL TRANSMITTER
Document Type and Number:
Japanese Patent JP3024025
Kind Code:
B2
Abstract:
PURPOSE: To easily swtich connection between a transmitting side and a receiving side by connecting photodetecting element output lines and receiving signal lines like a matrix and arranging switch elements for connecting/disconnecting the photodetecting element output lines and the receiving signal lines oh respective intersecting parts.
CONSTITUTION: Seven photodetecting element output lines 4b and three receiving signal lines 4c are connected like a matrix in an IC card loading part side connector 4 so as to intersect with each other at right angles and respective intersecting parts are connected through switching elements A1 to A7, B1 to B7, C1 to C7. When gate signals A1 to A7, B1 to B7, C1 to C7 generated from a reception control part 4d are activated, the swtiching elements A1 to A7, B1 to B7, C1 to C7 connect among respective output lines 4b and signal lines 4c. Consequently connection between the transmitting side and the receiving side can easily be switched.
Inventors:
Yoshio Takeda
Application Number:
JP17851092A
Publication Date:
March 21, 2000
Filing Date:
July 06, 1992
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G06F3/00; (IPC1-7): G06F3/00
Domestic Patent References:
| JP3206515A | ||||
| JP61290517A |
Attorney, Agent or Firm:
Shusaku Yamamoto