Communications: electrical – Digital comparator systems
Patent
1975-10-06
1976-09-07
Yusko, Donald J.
Communications: electrical
Digital comparator systems
179 15AL, H04Q 900, H04J 314
Patent
active
RE0289582
ABSTRACT:
This is a communication loop system having a bidirectional transmission capability between terminals. The system is comprised of switching units which allow isolation of a loop segment and the establishment of an operable folded loop for the remaining non-isolated loop portions of the system. In addition, the communication loop system comprises devices for enabling synchronous switchover operation during reconfiguration of the loop. This synchronous switchover insures that no data stream interruption or disturbance occurs for the units or terminals not attached to the disconnected loop segment.
REFERENCES:
patent: 3519750 (1967-08-01), Beresin et al.
patent: 3601806 (1971-08-01), Heimbigner
patent: 3716834 (1973-02-01), Adams
E. E. Mallar et al., "Communication Link Between a Loop System and a Remote Loop," IBM Technical Disclosure Bulletin, vol. 14, No. 7, Dec. 1971.
Zafiropulo Pietro Alois
Zihlmann Franz Xaver
Arnold Jack M.
International Business Machines - Corporation
Yusko Donald J.
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