1983-12-29
1985-08-27
Schreyer, Stafford D.
1791753R, H04M 124
Patent
active
045380333
ABSTRACT:
A communication bridge joining a primary communication channel to a plurality of secondary communication channels has electrically operated switches in series with the respective ports to the secondary communication channels. Control signals applied to the primary channel are utilized to address the bridge and to selectively drop or add secondary ports. Additionally a loopback circuit can be connected and disconnected in the primary port.
REFERENCES:
patent: 3371165 (1968-02-01), Earle et al.
patent: 3814840 (1974-06-01), Lubarsky, Jr. et al.
patent: 4055808 (1977-10-01), Holsinger et al.
patent: 4258236 (1981-03-01), Conklin et al.
patent: 4403119 (1983-09-01), Conklin et al.
Bruce Duncan
Conklin Charles E.
Conklin Instrument Corporation
Schreyer Stafford D.
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