Patent
1976-12-13
1979-05-01
Stewart, David L.
H04J 304
Patent
active
041525434
ABSTRACT:
An installation for transmitting telephone signals or data with time multiplexing for a plurality of subscriber sets divided into a number of groups. At least one pair of multiplexing gates actuated in synchronism are employed for each group, one for transmission and the other for reception. There is included at least one time multiplex connection, and at least one pair of first supplementary gates, respectively inserted between the multiplex connection and the transmission and reception gates connected to the subscriber sets in each single group. The first supplementary gates are actuated in synchronism with the corresponding transmission and reception gates. In the event of a fault in the transmission gate or reception gate connected to a subscriber set, the corresponding first supplementary gate is kept closed for the duration of the fault, thereby isolating the group; the remainder of the system is permitted to operate.
REFERENCES:
patent: 3427475 (1969-02-01), Wilkenson
patent: 3624304 (1971-11-01), Formenti
patent: 3683115 (1972-08-01), Schellenberg
patent: 3787628 (1974-01-01), Van Dijk
patent: 3922493 (1975-11-01), Brenig
patent: 4009348 (1977-02-01), Tate
patent: 4017687 (1977-04-01), Hartzler
patent: 4021618 (1977-05-01), Wurst
Charil Jean P. G.
Prudhon Lucien P. E.
Association des Ouvriers en Instruments de Precision
Stewart David L.
LandOfFree
Installation for time multiplexing and transmitting telephone si does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Installation for time multiplexing and transmitting telephone si, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Installation for time multiplexing and transmitting telephone si will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-632666