Title:
OPTICAL SIGNALING TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JP2770613
Kind Code:
B2
Abstract:
PURPOSE: To transmit signaling signals to subscribers without providing a light source in an optical exchange.
CONSTITUTION: The amplitude of optical communication signals inputted to optical modulators 105 to 107 through input lines 101 to 103 and a matrix optical switch 104 is modulated in accordance with signaling signals 108 to 110 and then the modulated outputs are sent to output lines 112 to 114 through a matrix optical switch 111.
Inventors:
SUZUKI SHUJI
Application Number:
JP21277491A
Publication Date:
July 02, 1998
Filing Date:
July 29, 1991
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H04B10/077; H04B10/29; H04B10/27; H04B10/54; H04Q3/52; (IPC1-7): H04Q3/52; H04B10/02
Attorney, Agent or Firm:
Nobuo Takahashi (5 others)