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Inventor:
Hirano; Akira
Address:
Yokohama, JP
No. of patents:
14
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
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
7536108 High precision chromatic dispersion measuring method and automatic dispersion compensating optic May 19, 2009
The present invention relates to an automatic dispersion compensating optical link system. Carrier suppressed RZ encoded optical signals generated using carrier suppressing means and binary NRZ code or partial response code, or carrier suppressed clock signals generated using carrier
7424230 Digital transmission system September 9, 2008
This digital transmission system is provided with a transmitting apparatus that transmits digital data signals and a receiving apparatus that receives the digital data signals transmitted over a transmission path, compares the signals with a predetermined threshold value, and performs
7116917 Optical transmitter and optical transmission system October 3, 2006
The present invention suppresses to a minimum the degradation of the transmission quality caused by chromatic dispersion characteristic of an optical transmission medium, and the interplay between the chromatic dispersion and non-linear optical effects in dense WDM transport systems.
6983085 Optical transmission circuit January 3, 2006
The optical transmission circuit of the present invention has an optical modulator 12 which modulates continuous light at wavelength .lamda.o with a signal at repetition frequency fo Hz and outputs alternating phase-inverted pulse light; a bias voltage applying unit 14 which applies
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
5264286 Laminated glass structure November 23, 1993
A laminated glass structure comprises two glass sheets, a plastic layer arranged at the bonding surface of one of the glass sheets, and a functioning layer consisting of single- or multi-layered films provided on the bonding surface of the glass sheet to the plastic layer, wherein the
5137560 Process for manufacturing glass with functional coating August 11, 1992
Disclosed herein is a process for manufacturing glass with functional coating by the steps of: 1) forming a film on a predetermined portion of a glass plate by screen-printing or flexographic printing of a liquid for forming functional coating which contains therein a metal oxide materia
5132161 Window glass for automobile with a heat reflective layer and an antenna conductor July 21, 1992
A window glass has a heat ray reflective layer including metal nitrides as a component thereof and an antenna conductor for an automobile wherein the heat ray reflective layer has a surface resistance of at least 20 k.OMEGA./sq. for preventing interference with the antenna operation.
5108479 Process for manufacturing glass with functional coating April 28, 1992
Disclosed herein is a process for manufacturing glass with functional coating by the steps of: 1) forming a film on a predetermined portion of a glass plate by screen-printing of a liquid for forming functional coating which contains therein a metal oxide material; and 2) subjecting the
5070230 Electrically heatable windshield December 3, 1991
An electrically heatable windshield comprises two glass plates bonded to each other with an interlayer therebetween and a transparent conductive layer formed at contacting surface between one of the glass plates and the interlayer so that the windshield is heated by supplying a current t
5066102 Combiner for head-up display and glass with durable reflective coating November 19, 1991
Disclosed herein is a combiner for head-up display, wherein a combiner part having a transparent, reflective coating formed thereon is provided in one part of the surface of a windshield glass, the combiner part having non-selecting reflection property.Also disclosed is a glass with refl










 
 
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