SYNCHRONISM CONTROL SYSTEM FOR TIME-DIVISION MULTIPLEX CIRCUIT

PURPOSE:To back up successively the synchronism control system when a main synchronism control is at fault and to prevent the system from being shut down by providing subordinate synchronism controllers which monitor a synchronizing signal on a time-division multiplex circuit while giving priority s...

Full description

Saved in:
Bibliographic Details
Main Authors NOMOTO YASUE, USUI TOSHIO, KAWAJI MITSUO
Format Patent
LanguageEnglish
Published 24.09.1985
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To back up successively the synchronism control system when a main synchronism control is at fault and to prevent the system from being shut down by providing subordinate synchronism controllers which monitor a synchronizing signal on a time-division multiplex circuit while giving priority stepwise to the controllers. CONSTITUTION:A main synchronism controller 100a sends the synchronizing signal SYN to the time-division multiple circuit 3 and stations S1-Sn are assigned the right to use the time-division multiplex circuit 3. The subordinate synchronism controllers 100b-100n detect a synchronizing signal SYN sent out of the main synchronism controller 100a of subordinate synchronism controller with higher priority through a detector 200, and generates and sends a synchronizing signal SYN to the time-division multiplex circuit 3 from a synchronizing signal generator 7 when detecting the absence of the synchronizing signal SYN from a time-up state. Each subordinate synchronizing signal controller is given its priority in the form of a time-up time.
Bibliography:Application Number: JP19840043354