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Measurement apparatus of optical communication system Grant 11,245,468 - Taga , et al. February 8, 2 | 2022-02-08 |
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Method for upgrading an optical transmission system and an optical transmitter Grant 7,177,540 - Inoue , et al. February 13, 2 | 2007-02-13 |
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Underwater repeater employing rare earth element doped fiber amplifier, Raman assist and optical pump source sparing App 20050226622 - Trischitta, Patrick R. ;   et al. | 2005-10-13 |
FEC frame structuring method and FEC multiplexer Grant 6,868,514 - Kubo , et al. March 15, 2 | 2005-03-15 |
Optical receiving apparatus and method Grant 6,856,771 - Taga , et al. February 15, 2 | 2005-02-15 |
Method for upgrading an optical transmission system and an optical transmitter App 20050024715 - Inoue, Takanori ;   et al. | 2005-02-03 |
Transmission capacity expanding method and optical transmission terminal App 20040213569 - Taga, Hidenori ;   et al. | 2004-10-28 |
Optical receiving apparatus and method App 20040165894 - Taga, Hidenori ;   et al. | 2004-08-26 |
Optical receiving apparatus and method App 20040165895 - Taga, Hidenori ;   et al. | 2004-08-26 |
WDM optical transmission system and an optical transmission line thereof Grant 6,744,990 - Suzuki , et al. June 1, 2 | 2004-06-01 |
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Optical transmission system, optical transmitter and methods thereof App 20030175033 - Taga, Hidenori ;   et al. | 2003-09-18 |
Optical amplifying transmission system and optical amplifier Grant 6,504,638 - Tanaka , et al. January 7, 2 | 2003-01-07 |
Optical transmitter and optical modulator App 20020191262 - Yamada, Yuichi ;   et al. | 2002-12-19 |
Manufacturing method of optical fiber cable App 20020150359 - Taga, Hidenori ;   et al. | 2002-10-17 |
Method and apparatus to determine a discrimination threshold of a received signal, and an optical transmission system App 20010055133 - Yamaguchi, Takuyuki ;   et al. | 2001-12-27 |
Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods App 20010009469 - Shimizu, Katsuhiro ;   et al. | 2001-07-26 |
Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods Grant 6,236,488 - Shimizu , et al. May 22, 2 | 2001-05-22 |
Wavelength division multiplexed optical processing device and optical communication transmission path Grant 6,181,449 - Taga , et al. January 30, 2 | 2001-01-30 |
Gain equalizing apparatus Grant 6,091,538 - Takeda , et al. July 18, 2 | 2000-07-18 |
Optical modulating apparatus Grant 6,028,695 - Uemura , et al. February 22, 2 | 2000-02-22 |
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Optical transmission line Grant 5,912,750 - Takeda , et al. June 15, 1 | 1999-06-15 |
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WDM optical communication method with pre-emphasis technique and an apparatus therefor Grant 5,790,289 - Taga , et al. August 4, 1 | 1998-08-04 |
Optical communication system and optical transmitting device Grant 5,786,918 - Suzuki , et al. July 28, 1 | 1998-07-28 |
Gain-controllable optical amplifier and optical gain-control method Grant 5,710,660 - Yamamoto , et al. January 20, 1 | 1998-01-20 |
Soliton optical communication system and optical transmitter and optical receiver therefor Grant 5,625,479 - Suzuki , et al. April 29, 1 | 1997-04-29 |
Wavelength division multiplexed optical fiber transmission equipment Grant 5,589,969 - Taga , et al. December 31, 1 | 1996-12-31 |
Optical amplifying transmitting system Grant 5,574,590 - Edagawa , et al. November 12, 1 | 1996-11-12 |
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Optical communication system Grant 5,471,333 - Taga , et al. November 28, 1 | 1995-11-28 |