Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1991-03-26
1994-01-25
Chan, Wing F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
375121, H04M 1100
Patent
active
052822419
ABSTRACT:
In a modem pooling system for enabling selective connection of a plurality of data terminal units 5.sub.1 to 5n to a modem 9 through an exchange switch 17, when the modem 9 is in standby state, the exchange switch 17 is controlled so that the modem 9 is continuously connected to a data terminal unit (e.g. 5.sub.1) selected in advance as a responsive data unit terminal from among the data terminal units.
REFERENCES:
patent: 4564724 (1986-01-01), Nakayama et al.
patent: 4622685 (1986-11-01), Dhawan et al.
patent: 5109406 (1992-04-01), Mano et al.
Aoki Takashi
Sano Yoshikazu
Chan Wing F.
Kabushiki Kaisha Toshiba
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