Patent ID: 6654380
Filing Date: 2003-11-25
Classification: H04L

Abstract:
A data exchange unit that communicates with a counterpart unit through a transmission line using a packet including header and data fields, the exchange unit comprising:a transmission buffer; a reception buffer; a transmission-reception buffer; a transmission filter adapted to selectively store a packet on the transmission buffer or the transmission-reception buffer based on the contents of the packet to be transmitted; a reception filter adapted to selectively store a received packet on the reception buffer or the transmission-reception buffer based on the contents of the received packet; a packet processor adapted to at least one of instruct a packet containing information to be transmitted and retrieve necessary information from the received packet; and a transceiver adapted to at least one of convert the stored packet into an electrical signal, the electrical signal transmitted through the transmission line and to convert another electrical signal received through the transmission line into the stored packet.