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Optical transmission system
Grant 11,444,694 - Yamamoto , et al. September 13, 2 | 2022-09-13 |
Optical transmission system, optical receiving apparatus and optical transmission method
Grant 11,444,699 - Masuda , et al. September 13, 2 | 2022-09-13 |
Synchronous Detection Apparatus, Synchronous Detection Method, And Program
App 20220263645 - KAWAKAMI; Hiroto ; et al. | 2022-08-18 |
Automatic bias control circuit
Grant 11,397,363 - Kawakami , et al. July 26, 2 | 2022-07-26 |
Wavelength Dispersion Compensation Apparatus, Optical Receiving Apparatus, Wavelength Dispersion Compensation Method And Computer Program
App 20220224415 - NAKAMURA; Masanori ; et al. | 2022-07-14 |
Symbol Judgement Apparatus And Symbol Judgement Method
App 20220224575 - TANIGUCHI; Hiroki ; et al. | 2022-07-14 |
Optical Transmission System And Compensation Method
App 20220216923 - MATSUSHITA; Asuka ; et al. | 2022-07-07 |
Optical receiving apparatus and waveform distortion compensation method
Grant 11,381,317 - Okamoto , et al. July 5, 2 | 2022-07-05 |
Optical transmission system, optical transmitting apparatus, and optical receiving apparatus
Grant 11,349,572 - Nakamura , et al. May 31, 2 | 2022-05-31 |
Wavelength Dispersion Amount Estimation Apparatus
App 20220158731 - HORIKOSHI; Kengo ; et al. | 2022-05-19 |
Error correction device, error correction method, and optical communication system
Grant 11,329,764 - Nakagawa , et al. May 10, 2 | 2022-05-10 |
Frame synchronization apparatus, optical communication apparatus, and frame synchronization method
Grant 11,323,238 - Yoshida , et al. May 3, 2 | 2022-05-03 |
Wavelength dispersion compensation apparatus, wavelength dispersion compensation method, and optical receiving apparatus
Grant 11,316,588 - Minoguchi , et al. April 26, 2 | 2022-04-26 |
Communication system, optical transmitting apparatus, and optical receiving apparatus
Grant 11,303,359 - Okamoto , et al. April 12, 2 | 2022-04-12 |
Optical Receiving Apparatus And Waveform Distortion Compensation Method
App 20220094440 - OKAMOTO; Seiji ; et al. | 2022-03-24 |
Digital coherent receiver and digital coherent receiving method
Grant 11,283,528 - Masuda , et al. March 22, 2 | 2022-03-22 |
Optical Transmission System, Optical Receiving Apparatus And Optical Transmission Method
App 20220069921 - MASUDA; Akira ; et al. | 2022-03-03 |
Optical transmission system
Grant 11,251,870 - Yamazaki , et al. February 15, 2 | 2022-02-15 |
Automatic Bias Control Circuit
App 20220043320 - KAWAKAMI; Hiroto ; et al. | 2022-02-10 |
Optical transmission control method and optical transmission system
Grant 11,245,487 - Hamaoka , et al. February 8, 2 | 2022-02-08 |
Wavelength Dispersion Compensation Apparatus, Wavelength Dispersion Compensation Method, And Optical Receiving Apparatus
App 20220038180 - MINOGUCHI; Kyo ; et al. | 2022-02-03 |
Frame synchronization apparatus, optical communication apparatus, and frame synchronization method
Grant 11,201,721 - Yoshida , et al. December 14, 2 | 2021-12-14 |
Communication System, Optical Transmitting Apparatus, And Optical Receiving Apparatus
App 20210384983 - OKAMOTO; Seiji ; et al. | 2021-12-09 |
Optical Transmission System
App 20210367671 - YAMAMOTO; Shuto ; et al. | 2021-11-25 |
Optical Transmission System, Optical Transmitting Apparatus, And Optical Receiving Apparatus
App 20210367675 - NAKAMURA; Masanori ; et al. | 2021-11-25 |
Optical Transmission System
App 20210367670 - YAMAMOTO; Shuto ; et al. | 2021-11-25 |
Frame Synchronization Apparatus, Optical Communication Apparatus, And Frame Synchronization Method
App 20210273777 - YOSHIDA; Mitsuteru ; et al. | 2021-09-02 |
Optical Transmission System
App 20210242942 - YAMAZAKI; Etsushi ; et al. | 2021-08-05 |
Digital Coherent Receiver And Digital Coherent Receiving Method
App 20210218476 - MASUDA; Akira ; et al. | 2021-07-15 |
Optical Transmission Control Method And Optical Transmission System
App 20210211218 - HAMAOKA; Fukutaro ; et al. | 2021-07-08 |
Signal Processing Apparatus And Signal Processing Method
App 20210203363 - OKAMOTO; Seiji ; et al. | 2021-07-01 |
Frame Synchronization Apparatus, Optical Communication Apparatus, And Frame Synchronization Method
App 20210167939 - YOSHIDA; Mitsuteru ; et al. | 2021-06-03 |
Error Correction Device, Error Correction Method, And Optical Communication System
App 20210075541 - NAKAGAWA; Fumiaki ; et al. | 2021-03-11 |
Chromatic dispersion compensation device, chromatic dispersion compensation method, and communication device
Grant 10,868,617 - Yoshida , et al. December 15, 2 | 2020-12-15 |
Signal-to-noise ratio estimation method, optical transmission apparatus, and optical transmission system
Grant 10,841,006 - Okamoto , et al. November 17, 2 | 2020-11-17 |
Optical receiver, optical reception method, and optical communication system
Grant 10,826,620 - Hamaoka , et al. November 3, 2 | 2020-11-03 |
Optical transmitter, optical receiver, optical data transmission system, optical transmission method, and optical reception method
Grant 10,651,944 - Horikoshi , et al. | 2020-05-12 |
Transmission characteristic compensation apparatus, transmission characteristic compensation method, and communication apparatus
Grant 10,608,743 - Takamuku , et al. | 2020-03-31 |
Chromatic Dispersion Compensation Device, Chromatic Dispersion Compensation Method, And Communication Device
App 20200067598 - YOSHIDA; Mitsuteru ; et al. | 2020-02-27 |
Optical Receiver, Optical Reception Method, And Optical Communication System
App 20200052793 - HAMAOKA; Fukutaro ; et al. | 2020-02-13 |
Signal-to-noise Ratio Estimation Method, Optical Transmission Apparatus, And Optical Transmission System
App 20200028586 - OKAMOTO; Seiji ; et al. | 2020-01-23 |
Chromatic dispersion estimating circuit, optical reception device and chromatic dispersion amount estimating method
Grant 10,422,719 - Yamazaki , et al. Sept | 2019-09-24 |
Phase compensation device, phase compensation method and communication apparatus
Grant 10,419,127 - Yamazaki , et al. Sept | 2019-09-17 |
Optical Transmitter, Optical Receiver, Optical Data Transmission System, Optical Transmission Method, And Optical Reception Meth
App 20190273560 - HORIKOSHI; Kengo ; et al. | 2019-09-05 |
Data phase tracking device, data phase tracking method and communication device
Grant 10,305,675 - Onuma , et al. | 2019-05-28 |
Transmission Characteristic Compensation Apparatus, Transmission Characteristic Compensation Method, And Communication Apparatus
App 20190074903 - TAKAMUKU; Tomohiro ; et al. | 2019-03-07 |
Phase Compensation Device, Phase Compensation Method And Communication Apparatus
App 20190074909 - YAMAZAKI; Etsushi ; et al. | 2019-03-07 |
Optical signal transmission apparatus and optical signal transmission method
Grant 10,171,173 - Okamoto , et al. J | 2019-01-01 |
Data processor, data processing method and communication device
Grant 10,128,818 - Onuma , et al. November 13, 2 | 2018-11-13 |
Transport apparatus and transport method
Grant 10,122,462 - Ohara , et al. November 6, 2 | 2018-11-06 |
Data Phase Tracking Device, Data Phase Tracking Method And Communication Device
App 20180302211 - ONUMA; Yasuharu ; et al. | 2018-10-18 |
Chromatic Dispersion Estimating Circuit, Optical Reception Device And Chromatic Dispersion Amount Estimating Method
App 20180252614 - YAMAZAKI; Etsushi ; et al. | 2018-09-06 |
Optical transmission system, phase compensation method, and optical reception apparatus
Grant 10,038,507 - Yoshida , et al. July 31, 2 | 2018-07-31 |
Data Processor, Data Processing Method And Communication Device
App 20180175830 - ONUMA; Yasuharu ; et al. | 2018-06-21 |
Optical transmission/reception system, transmitter, receiver, and optical transmission/reception method
Grant 9,698,932 - Kisaka , et al. July 4, 2 | 2017-07-04 |
Optical receiving device and phase cycle reduction method
Grant 9,667,350 - Horikoshi , et al. May 30, 2 | 2017-05-30 |
Transport Apparatus And Transport Method
App 20170111116 - OHARA; Takuya ; et al. | 2017-04-20 |
Coherent communication system, communication method, and transmission method
Grant 9,621,299 - Ishihara , et al. April 11, 2 | 2017-04-11 |
Optical Signal Transmission Apparatus And Optical Signal Transmission Method
App 20170070296 - OKAMOTO; Seiji ; et al. | 2017-03-09 |
Transmission system and transmission method
Grant 9,336,080 - Hirano , et al. May 10, 2 | 2016-05-10 |
Optical Transmission/reception System, Transmitter, Receiver, And Optical Transmission/reception Method
App 20160065326 - KISAKA; Yoshiaki ; et al. | 2016-03-03 |
Optical Transmission System, Phase Compensation Method, And Optical Reception Apparatus
App 20150372766 - YOSHIDA; Mitsuteru ; et al. | 2015-12-24 |
Coherent Communication System, Communication Method, And Transmission Method
App 20150341138 - ISHIHARA; Koichi ; et al. | 2015-11-26 |
Optical Receiving Device And Phase Cycle Reduction Method
App 20150333838 - HORIKOSHI; Kengo ; et al. | 2015-11-19 |
Signal block sequence processing method and signal block sequence processing apparatus
Grant 9,054,894 - Kobayashi , et al. June 9, 2 | 2015-06-09 |
Transmission System And Transmission Method
App 20140108894 - Hirano; Akira ; et al. | 2014-04-17 |
Optical digital transmission system
Grant 8,571,037 - Aisawa , et al. October 29, 2 | 2013-10-29 |
Digital transmission system and digital transmission method
Grant 8,514,881 - Kisaka , et al. August 20, 2 | 2013-08-20 |
Signal generating method for clock recovery and clock recovery circuit
Grant 8,406,360 - Endoh , et al. March 26, 2 | 2013-03-26 |
Optical transmission system and method
Grant 8,135,285 - Kisaka , et al. March 13, 2 | 2012-03-13 |
Optical Digital Transmission System
App 20110262136 - Aisawa; Shigeki ; et al. | 2011-10-27 |
Multiplexing transmission system and multiplexing transmission method
Grant 7,970,008 - Kisaka , et al. June 28, 2 | 2011-06-28 |
Signal Generating Method For Clock Recovery And Clock Recovery Circuit
App 20110063001 - Endoh; Yasuyuki ; et al. | 2011-03-17 |
Signal Block Sequence Processing Method And Signal Block Sequence Processing Apparatus
App 20110013690 - Kobayashi; Shoukei ; et al. | 2011-01-20 |
Multiplexing Transmission System And Multiplexing Transmission Method
App 20100177785 - Kisaka; Yoshiaki ; et al. | 2010-07-15 |
Processes and devices for the determination of a PMD-induced outage probability of an optical transmission system
Grant 7,715,717 - Weiershausen , et al. May 11, 2 | 2010-05-11 |
Digital Transmission System And Digital Transmission Method
App 20100080245 - Kisaka; Yoshiaki ; et al. | 2010-04-01 |
Optical Transmission System And Method
App 20090162061 - Kisaka; Yoshiaki ; et al. | 2009-06-25 |
Digital transmission system
Grant 7,424,230 - Tomizawa , et al. September 9, 2 | 2008-09-09 |
Multiplexing and transmission apparatus
Grant 7,095,758 - Tomizawa , et al. August 22, 2 | 2006-08-22 |
Transport system and transport method
Grant 7,002,968 - Tomizawa , et al. February 21, 2 | 2006-02-21 |
Polarization mode dispersion compensation method and polarization mode dispersion compensation device
App 20040131363 - Kisaka, Yoshiaki ; et al. | 2004-07-08 |
Optical transmission apparatus
App 20030170035 - Kisaka, Yoshiaki ; et al. | 2003-09-11 |
Digital transmission system
App 20030118345 - Tomizawa, Masahito ; et al. | 2003-06-26 |
Multiplexing and transmission apparatus
App 20010053161 - Tomizawa, Masahito ; et al. | 2001-12-20 |
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