发明名称 Subscriber line interface circuitry transceiver
摘要 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.
申请公布号 US2005147234(A1) 申请公布日期 2005.07.07
申请号 US20030750421 申请日期 2003.12.31
申请人 ZHOU YAN 发明人 ZHOU YAN
分类号 H04M1/00;H04M3/00;H04M9/00;(IPC1-7):H04M1/00 主分类号 H04M1/00
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