Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2005-04-26
2008-11-04
Ngo, Ricky (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
Reexamination Certificate
active
07447238
ABSTRACT:
A method for compensating for one or more transmission delays between a multiplexer, a first node and a second node. In one embodiment, the method includes synchronizing a first real time clock of the multiplexer as the real time clock of the first node and as the real time clock of the second node; receiving data from the first node; calculating a transmission delay between the multiplexer and the first node using an equation (RTCK+DelayK)mod(M·Tslot)=(K−1)·Tslot, where M refers to the number of time slots within a bandwidth of a medium configured for communicating data between the multiplexer, the first node and the second node, Tslotrefers to the duration of each time slot, K refers to a node address, mod refers to a modulo operation, RTCKrefers to the real time clock of the Kthnode and DelayKrefers to accumulated transmission delay from the multiplexer to the Kthnode; sending a second real time clock of the multiplexer, a first number and the transmission delay to the first node; and setting the real time clock of the first node to be equal to the second real time clock of the multiplexer plus the transmission delay.
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UK Search Report dated Aug. 3, 2006 for Application No. GB 0607476.9.
Griffin Jeffrey E.
Kao Wei-Po
Ngo Ricky
Pramudji Ari
WesternGeco L.L.C.
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