Patent ID: 6522701
Filing Date: 2003-02-18
Classification: H03K,H04L

Abstract:
In a channel interface for a system using a full-duplex point-to-point signaling channel, a method of extracting received digital data, the method comprising:a) providing a sampling capacitor having a first node and a second node; b) providing a plurality of voltage references; c) providing an inverter having an input and an output; d) providing transmitted digital data being sent by the channel interface; e) selecting one of said plurality of voltage references in accordance with the transmitted digital data of the channel interface; f) during a sampling interval, i) coupling said signaling channel to the first node of the sampling capacitor; and ii) coupling the selected voltage reference to the second node of the sampling capacitor; and g) during an evaluation interval, i) coupling said sampling capacitor to the input of the inverter; and ii) generating the received digital data for the channel interface at the output of the inverter.