Title:
LINE MONITOR CONTROL SYSTEM
Document Type and Number:
Japanese Patent JPS55136752
Kind Code:
A
Abstract:
PURPOSE: To form the line monitor control signal, by violating the rule of the main data at the transmission section with the pattern receptionable at the reception section artificially.
CONSTITUTION: The main data D coded is fed to the code converter 11 and performs code conversion for the main data D with a given rule. The main data in code conversion is mixed with the line control signal S at the mixer 12 and given with a given rule for artificial violation. The main data superimposing the signal S is transmitted via the transmission line 14 to the reception section. The data via the receiver 15 is inputted to the rule violation detector 16, and artifical rule violation pulse is detected, and the line control signal S is picked up.
Inventors:
NAGAI YASUO
MORI MASAKAZU
YONEDA ETSUGO
MORI MASAKAZU
YONEDA ETSUGO
Application Number:
JP4418979A
Publication Date:
October 24, 1980
Filing Date:
April 13, 1979
Export Citation:
Assignee:
FUJITSU LTD
NIPPON TELEGRAPH & TELEPHONE
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H04L25/02; H04L1/24; H04L69/40; (IPC1-7): H04L11/08; H04L13/00; H04L25/03