Subscriber terminal polling unit

Details Subscriber terminal polling unit Subscriber terminal polling unit

1983-03-15

1985-07-02

Thomas, James D.

Boots, shoes, and leggings

34082506, 371 9, G06F 1120

Patent

active

045272352

ABSTRACT:
A subscriber services system polling unit in which microprocessors, each primarily responsible for controlling the polling of half the subscriber terminals, may be switched to also control the polling of the other half of the subscriber terminals.

REFERENCES:
patent: 3618045 (1971-11-01), Campbell et al.
patent: 4256926 (1981-03-01), Pitroda
patent: 4358823 (1982-11-01), McDonald et al.
patent: 4412281 (1983-10-01), Works
patent: 4466098 (1984-08-01), Southard

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