Patent ID: 6804205
Filing Date: 2004-10-12
Classification: H04J,H04L

Abstract:
A method of half duplex transmission of packetized digital data from a first node to a second node through a bus connected to said first node, said first node is a first electronic device, said second node is a second electronic device, said first node having at least one transmitting/receiving unit for transmitting/receiving a packet on said bus, said method comprising the steps of:inputting a new packet to be transmitted to a first-in-first-out storage; determining whether the new packet input to said first-in-first-out storage contains time information related to synchronization with said second node; updating in response to determination that said new packet contains time information, a local timer of said first node; continuously incrementing said local timer; and responsive to a timing enabling transmission of said new packet by said transmitting/receiving unit, reading said new packet from said first-in-first-out storage, determining whether said new packet contains said time information or not, updating said time information contained in said new packet by using a value of said local timer so as to prevent mismatch in synchronization with said second node, and outputting through said transmitting/receiving unit to the bus.