Modem interface unit with power saving sleep mode

Details Modem interface unit with power saving sleep mode Modem interface unit with power saving sleep mode

1998-12-07

2000-08-29

Shin, Christopher B.

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

710 29, 710 30, 710 31, 710 62, 710 60, 713310, 713320, G06F 1300

Patent

active

061122696

ABSTRACT:
A modem interface unit is provided for coupling a communications modem to a host processor. The modem interface unit includes a host interface for coupling to a host processor, an anlog interface for coupling to a communications modem and a digital signal processor for performing signal processing operations on modem signals as they are transferred from the host interface to the analog interface and vice versa. A memory is provided for use in moving the modem signals through the interface unit. A sleep mode mechanism is provided for discontinuing the supplying of operating current to the digital signal processor when no modem signals have been transmitted or received for a predetermined period of time.

REFERENCES:
patent: 5161184 (1992-11-01), Smith et al.
patent: 5167024 (1992-11-01), Smith et al.
patent: 5606560 (1997-02-01), Malek et al.
patent: 5724413 (1998-03-01), Suffern et al.
patent: 5822692 (1998-10-01), Krishan et al.
patent: 5903765 (1999-05-01), White et al.
patent: 5909488 (1999-06-01), Koizumi et al.

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