Patent | Date |
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Optical transmission characteristic measurement device and method Grant 10,230,462 - Oda , et al. | 2019-03-12 |
Network Control Apparatus, Network Control Method, And Storage Medium App 20180294875 - OKANO; SATORU | 2018-10-11 |
Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratio Grant 10,020,878 - Oda , et al. July 10, 2 | 2018-07-10 |
Optical Transmission Characteristic Measurement Device And Method App 20180145747 - Oda; Shoichiro ;   et al. | 2018-05-24 |
Network Controller, Optical Transmission System, And Method For Determining Failure App 20180006717 - OKANO; SATORU | 2018-01-04 |
Optical transmission device and optical transmission system Grant 9,813,183 - Nakamura , et al. November 7, 2 | 2017-11-07 |
Optical transmission system and optical transmission device Grant 9,698,902 - Nakamura , et al. July 4, 2 | 2017-07-04 |
Optical transmission apparatus and optical transmission system Grant 9,673,929 - Yamashita , et al. June 6, 2 | 2017-06-06 |
In-band optical signal-to-noise ratio monitor Grant 9,515,727 - Yang , et al. December 6, 2 | 2016-12-06 |
Mitigation of spectral offset in an optical filter Grant 9,515,733 - Akasaka , et al. December 6, 2 | 2016-12-06 |
Optical Signal-to-noise Ratio Monitor And Method For Measuring Optical Signal-to-noise Ratio App 20160308611 - ODA; Shoichiro ;   et al. | 2016-10-20 |
Mitigation Of Spectral Offset In An Optical Filter App 20160261343 - Akasaka; Youichi ;   et al. | 2016-09-08 |
In-band Optical Signal-to-noise Ratio Monitor App 20160261340 - Yang; Jeng-Yuan ;   et al. | 2016-09-08 |
Optical amplification apparatus, optical transmission apparatus, and optical transmission system Grant 9,391,421 - Okano , et al. July 12, 2 | 2016-07-12 |
Optical Amplification Apparatus, Optical Transmission Apparatus, And Optical Transmission System App 20160094007 - OKANO; SATORU ;   et al. | 2016-03-31 |
Optical Transmission Device And Optical Transmission System App 20160094307 - NAKAMURA; Kentaro ;   et al. | 2016-03-31 |
Optical Transmission Apparatus And Optical Transmission System App 20160094305 - YAMASHITA; Makoto ;   et al. | 2016-03-31 |
Correction table for interferometric optical signal-to-noise ratio monitor Grant 9,270,369 - Yang , et al. February 23, 2 | 2016-02-23 |
Optical Transmission System And Optical Transmission Device App 20150381272 - NAKAMURA; Kentaro ;   et al. | 2015-12-31 |
Dual-polarization interferometric optical signal-to-noise ratio monitor Grant 9,112,605 - Yang , et al. August 18, 2 | 2015-08-18 |
Correction Table For Interferometric Optical Signal-to-noise Ration Monitor App 20150200724 - Yang; Jeng-Yuan ;   et al. | 2015-07-16 |
Optical packet switching system and method for controlling the peak power Grant 9,077,475 - Saito , et al. July 7, 2 | 2015-07-07 |
Dual-polarization Interferometric Optical Signal-to-noise Ratio Monitor App 20140369678 - Yang; Jeng-Yuan ;   et al. | 2014-12-18 |
WDM optical transmission system and control method thereof Grant 8,615,167 - Sugaya , et al. December 24, 2 | 2013-12-24 |
Wdm Optical Transmission System And Control Method Thereof App 20120063771 - SUGAYA; Yasushi ;   et al. | 2012-03-15 |
Method of upgrading optical node, and an optical node apparatus Grant 7,650,072 - Onaka , et al. January 19, 2 | 2010-01-19 |
Wavelength division multiplexing device, an optical leakage prevention method, and a wavelength division multiplexing communication system Grant 7,619,813 - Maeda , et al. November 17, 2 | 2009-11-17 |
Method Of Upgrading Optical Node, And An Optical Node Apparatus App 20090226167 - Onaka; Miki ;   et al. | 2009-09-10 |
Dispersion compensation method in optical communication system having optical add drop multiplexing capability Grant 7,542,677 - Sekiya , et al. June 2, 2 | 2009-06-02 |
Method of upgrading optical node, and an optical node apparatus Grant 7,522,839 - Onaka , et al. April 21, 2 | 2009-04-21 |
Optical transmission system and dispersion compensator Grant 7,376,361 - Miyauchi , et al. May 20, 2 | 2008-05-20 |
Dispersion compensation apparatus and dispersion compensation method App 20080056726 - Sugiya; Hideaki ;   et al. | 2008-03-06 |
Method of upgrading optical node, and an optical node apparatus App 20080002978 - Onaka; Miki ;   et al. | 2008-01-03 |
Dispersion compensation method in optical communication system having optical add drop multiplexing capability App 20080002979 - Sekiya; Motoyoshi ;   et al. | 2008-01-03 |
Dispersion compensation method in optical communication system having optical add drop multiplexing capability Grant 7,274,878 - Sekiya , et al. September 25, 2 | 2007-09-25 |
Optical transmission system using in-line amplifiers Grant 7,263,296 - Miyauchi , et al. August 28, 2 | 2007-08-28 |
Optical transmission system and dispersion compensator App 20070014578 - Miyauchi; Akira ;   et al. | 2007-01-18 |
Optical transmission system using in-line amplifiers App 20060285856 - Miyauchi; Akira ;   et al. | 2006-12-21 |
Wavelength division multiplexing device, an optical leakage prevention method, and a wavelength division multiplexing communication system App 20060221435 - Maeda; Taizo ;   et al. | 2006-10-05 |
Optical transmission system and dispersion compensator Grant 7,116,913 - Miyauchi , et al. October 3, 2 | 2006-10-03 |
Optical transmission system using in-line amplifiers Grant 7,116,918 - Miyauchi , et al. October 3, 2 | 2006-10-03 |
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus Grant 7,079,771 - Yamane , et al. July 18, 2 | 2006-07-18 |
Method and system for optical transmission adopting dispersion compensation Grant 7,068,876 - Tsuda , et al. June 27, 2 | 2006-06-27 |
Method for optical fiber communication, and device and system for use in carrying out the method Grant 7,006,769 - Kawasaki , et al. February 28, 2 | 2006-02-28 |
Optical transmission apparatus, optical transmission system and dispersion compensating method App 20050265725 - Okano, Satoru ;   et al. | 2005-12-01 |
Optical transmission system and dispersion compensator App 20050047792 - Miyauchi, Akira ;   et al. | 2005-03-03 |
Optical transmission system and dispersion compensator Grant 6,823,141 - Miyauchi , et al. November 23, 2 | 2004-11-23 |
Method for optical fiber communication, and terminal device and system for use in carrying out the method Grant 6,738,584 - Tsuda , et al. May 18, 2 | 2004-05-18 |
Dispersion compensation method in optical communication system having optical add drop multiplexing capability App 20030198473 - Sekiya, Motoyoshi ;   et al. | 2003-10-23 |
Optical transmission system using in-line amplifiers App 20030194242 - Miyauchi, Akira ;   et al. | 2003-10-16 |
Optical transmission system using in-line amplifiers Grant 6,570,691 - Miyauchi , et al. May 27, 2 | 2003-05-27 |
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus App 20030030867 - Yamane, Kazuo ;   et al. | 2003-02-13 |
Optical Transmission Device And Optical Communication System App 20020093705 - OKANO, SATORU ;   et al. | 2002-07-18 |
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus App 20010050792 - Yamane, Kazuo ;   et al. | 2001-12-13 |
Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus Grant 6,295,147 - Yamane , et al. September 25, 2 | 2001-09-25 |
Optical transmission system and dispersion compensator App 20010015843 - Miyauchi, Akira ;   et al. | 2001-08-23 |
Optical amplifier and optical transmission system including the optical amplifier Grant 6,038,063 - Tsuda , et al. March 14, 2 | 2000-03-14 |
Optical transmission system Grant 5,877,881 - Miyauchi , et al. March 2, 1 | 1999-03-02 |