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Inventor:
Yonenaga; Kazushige
Address:
Yokosuka, JP
No. of patents:
6
Patents:












Patent Number Title Of Patent Date Issued
8005374 Optical transmission system, optical transmitter for optical transmission system, and optical re August 23, 2011
An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection
7995930 Optical receiver using Mach-Zehnder interferometer August 9, 2011
The present invention relates to an optical receiver, in which the transmittance of a Mach-Zehnder interferometer can be locked at a normal operation point in a simple structure and control. A transmittance detecting circuit and a minute modulation signal detecting circuit are provid
7734194 Optical transmission system, optical transmitter for optical transmission system, and optical re June 8, 2010
An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection
6934308 Precoding circuit and precoding-mulitplexing circuit for realizing very high transmission rate i August 23, 2005
A precoding-multiplexing circuit is formed by a precoding circuit for carrying out a precoding with respect to n sets of parallel input binary data signals having a bit rate equal to R/n, to obtain n sets of parallel precoded signals, and a time division multiplexer for time division
6865348 Optical transmission method, optical transmitter, optical receiver, and optical transmission sys March 8, 2005
A system which improves wavelength tolerance, compensates dispersion in a simple way, reduces limitation of the fiber input power is disclosed. The operation includes receiving a clock signal from a system clock source; modulating a single mode optical signal based on the clock signal an
6763197 Optical transmitter and optical transmitter control method using variable duty ratio setting and July 13, 2004
An optical transmitter for realizing a high tolerance with respect to the group velocity dispersion of the optical fibers, a small receiver sensitivity degradation, and an improved stability that is hardly affected by the group velocity dispersion even in the case of network scale ex










 
 
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