Patent ID: 6345052
Filing Date: 2002-02-05
Classification: H04L,H04Q

Abstract:
An interface device for interfacing between an asynchronous transfer mode (ATM) layer device and a physical (PHY) layer device, said interface device comprising:a transmit section having a localized sampling architecture and comprising: an input interface for receiving input signals according to a communication protocol; a sampling circuit having inputs coupled to said input interface, said sampling circuit being operative to sample input signals from said input interface; a cell processor having inputs for receiving sampled input signals from said sampling circuit and an output for transmitting an output signal to another circuit, said cell processor being operative to substantially predict the behavior of input signals arriving on said input interface, said output signal being used as a transmission status signal output by said interface device; and means for correcting the output signal transmitted by said cell processor so as to ensure that said transmission status signal output by said interface device does not transition out of synch with the requirements of the communication protocol.