Title:
PULSE TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JPS5228213
Kind Code:
A
Abstract:
PURPOSE: Extension of the transmission distance and enabling the error supervision by changing the transition rule of photo-communication to obtain codes of narrow transmission band.
Inventors:
OOTA KOUICHI
Application Number:
JP9851575A
Publication Date:
March 03, 1977
Filing Date:
August 15, 1975
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H04L25/49; (IPC1-7): H03K13/00; H04B1/66; H04L25/49