Power source system for data terminal equipment

Details Power source system for data terminal equipment Power source system for data terminal equipment

1988-10-14

1990-03-06

George, Keith E.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379102, H04M 1100

Patent

active

049072544

ABSTRACT:
A power source control system is disclosed for a data terminal which is connected to a communication line through a modem and a network control unit. A power source control unit is provided between the modem and the data terminal while interface between the modem and the data terminal is maintained so that when an incoming call to the data terminal is received and detected, a line establishing procedure is immediately executed with resepct to the calling party in place of the data terminal, and a main power source of the data terminal is turned ON, making the data terminal ready for a communication operation.

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patent: 4626623 (1986-12-01), Lattaye
patent: 4647721 (1987-03-01), Busam
patent: 4656318 (1987-04-01), Noyes
patent: 4677646 (1987-06-01), Dodds et al.
patent: 4701946 (1987-10-01), Oliva et al.
patent: 4723269 (1988-02-01), Summerlin

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