Title:
SECONDARY CARRIER WAVE PILING PCM-IM COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JPS5269506
Kind Code:
A
Abstract:
PURPOSE: In PCM-IM communication system, the transmission of subordinate signal such as circuit monitor, ordering, etc. as well as master signal becomes possible by pilling the secondary carrier wave which is modulated by subordinate signal. As result, the application range of light communication can be enlarged.
Inventors:
SASAKI SHIYUNROKU
KAMEO KIYOUJI
TOYODA SATOSHI
SHIBUYA EIICHIROU
KUBOTA SHIMEO
MOTOMURA YOSHIHISA
KAMEO KIYOUJI
TOYODA SATOSHI
SHIBUYA EIICHIROU
KUBOTA SHIMEO
MOTOMURA YOSHIHISA
Application Number:
JP14657475A
Publication Date:
June 09, 1977
Filing Date:
December 08, 1975
Export Citation:
Assignee:
TOKYO ELECTRIC POWER CO
FUJITSU LTD
FUJITSU LTD
International Classes:
H04J9/00; G01M11/00; H04B10/00; H04B10/524; H04B10/54; H04B10/556; H04J7/00; H04J14/00; H04J14/04; H04J14/06; H04L27/32; (IPC1-7): H04B9/00; H04J15/00
Domestic Patent References:
| JPS4737006A | ||||
| JPS4737005A | ||||
| JPS5513660A | 1980-01-30 |
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