Patent ID: 8000599
Filing Date: 2011-08-16
Classification: H04Q

Abstract:
1. An optical transmission system that performs optical transmission over an optical switching network, comprising: a packet generation circuit that stores data received from a data transmission source on a first memory and generates a plurality of packets based on the data; a first transmitter that changes the plurality of packets into a plurality of optical packets; an optical wavelength-multiplexer that generates a multiplexed optical packet signal by performing optical wavelength multiplexing on the plurality of optical packets, and transmits the multiplexed optical packet signal to a transmission destination; a second transmitter that retransmits the multiplexed optical packet signal transmitted from the optical wavelength-multiplexer back to a the first transmitter; a skew-amount detector that detects a skew amount of the optical packet allocated to each wavelength band of the multiplexed optical packet signal retransmitted from the second transmitter; and a delay-amount adjuster that adjusts, based on the skew amount detected by the skew-amount detector, a delay amount of an optical packet allocated to each wavelength band of a multiplexed optical packet signal transmitted to a transmission destination by the optical wavelength-multiplexer, wherein the packet generation circuit request to the data transmission source for discontinuing data output to the packet generation circuit when the amount of data stored in the first memory exceeds a reference value, and the packet generation circuit request to the data transmission source for resuming data output to the packet generation circuit when the amount of data stored in the first memory is less than the reference value.