Subscriber line interface circuitry transceiver

Details Subscriber line interface circuitry transceiver Subscriber line interface circuitry transceiver

2003-12-31

2008-07-15

Singh, Ramnandan (Department: 2614)

Telephonic communications

Subscriber line or transmission line interface

Reexamination Certificate

active

07400719

ABSTRACT:
A subscriber line interface circuit apparatus includes a first driver for driving a downstream data signal in a non-voiceband range and a metering signal onto a subscriber line. The apparatus includes a second driver for driving a downstream voice signal in a voiceband range onto the subscriber line. Receiver circuitry is coupled to provide an upstream data signal and an upstream voice signal from an upstream signal carried by the subscriber line. The first driver and receiver circuitry reside on a same first integrated circuit die.

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