| Patent | Date |
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Optical Network Device And Method For Monitoring Transmission Line
App 20220209884 - TAJIMA; Kazuyuki ; et al. | 2022-06-30 |
Optical Transmitter And Control Method For Optical Transmitter
App 20220109506 - Yoshida; Setsuo ; et al. | 2022-04-07 |
Communication device and communication method
Grant 11,228,367 - Tanimura , et al. January 18, 2 | 2022-01-18 |
Transmission line monitoring device and transmission line monitoring method
Grant 11,146,332 - Yoshida , et al. October 12, 2 | 2021-10-12 |
Transmission Line Monitoring Device And Transmission Line Monitoring Method
App 20210306073 - Yoshida; Setsuo ; et al. | 2021-09-30 |
Optical network device and method for monitoring transmission line
Grant 10,999,659 - Tajima , et al. May 4, 2 | 2021-05-04 |
Parameter analysis method and apparatus
Grant 10,972,178 - Tanimura April 6, 2 | 2021-04-06 |
Optical Network Device And Method For Monitoring Transmission Line
App 20210092498 - TAJIMA; KAZUYUKI ; et al. | 2021-03-25 |
Data collecting device and optical transmission system
Grant 10,853,719 - Tanimura , et al. December 1, 2 | 2020-12-01 |
Transmission apparatus, reception apparatus, and method for estimating characteristics of transmission line
Grant 10,720,992 - Tanimura , et al. | 2020-07-21 |
Communication Device And Communication Method
App 20200153504 - Tanimura; Takahito ; et al. | 2020-05-14 |
Receiver and receiving method
Grant 10,554,325 - Yamauchi , et al. Fe | 2020-02-04 |
Optical transmitter, optical transmission apparatus, and optical modulation method
Grant 10,425,166 - Yamauchi , et al. Sept | 2019-09-24 |
Monitor device and monitor method for monitoring transmission line
Grant 10,419,117 - Tanimura , et al. Sept | 2019-09-17 |
Parameter Analysis Method And Apparatus
App 20190280766 - Tanimura; Takahito | 2019-09-12 |
Optical transmitter, optical receiver and optical transmission method
Grant 10,313,017 - Tanimura , et al. | 2019-06-04 |
Signal processing device used in optical receiver and signal processing method
Grant 10,277,328 - Oyama , et al. | 2019-04-30 |
Transmitter, Receiver, And Transmit Method
App 20190089479 - YAMAUCHI; Tomohiro ; et al. | 2019-03-21 |
Location measurement apparatus, light modulation converter, and light variation location measurement method
Grant 10,193,621 - Kato , et al. Ja | 2019-01-29 |
Optical Transmitter, Optical Transmission Apparatus, And Optical Modulation Method
App 20190020418 - YAMAUCHI; Tomohiro ; et al. | 2019-01-17 |
Transmission Apparatus, Reception Apparatus, And Method For Estimating Characteristics Of Transmission Line
App 20180375580 - Tanimura; Takahito ; et al. | 2018-12-27 |
Location Measurement Apparatus, Light Modulation Converter, And Light Variation Location Measurement Method
App 20180316422 - Kato; Tomoyuki ; et al. | 2018-11-01 |
Monitor Device And Monitor Method For Monitoring Transmission Line
App 20180234184 - Tanimura; Takahito ; et al. | 2018-08-16 |
Signal Processing Device Used In Optical Receiver And Signal Processing Method
App 20180034552 - Oyama; Tomofumi ; et al. | 2018-02-01 |
Optical Transmitter, Optical Receiver And Optical Transmission Method
App 20180026724 - Tanimura; Takahito ; et al. | 2018-01-25 |
Optical transmission device, transmission system, and transmission method
Grant 9,787,396 - Sugitani , et al. October 10, 2 | 2017-10-10 |
Data Collecting Device And Optical Transmission System
App 20170161602 - Tanimura; Takahito ; et al. | 2017-06-08 |
Optical transmitter and waveform distortion correction method
Grant 9,654,216 - Nakashima , et al. May 16, 2 | 2017-05-16 |
Optical transmission device, nonlinear distortion compensation method, and nonlinear distortion pre-equalization method
Grant 9,654,224 - Oyama , et al. May 16, 2 | 2017-05-16 |
Optical add-drop multiplexer
Grant 9,634,787 - Tanimura , et al. April 25, 2 | 2017-04-25 |
Transmission device, receiving device, and communication method
Grant 9,571,224 - Tanimura February 14, 2 | 2017-02-14 |
Optical Transmission Device, Transmission System, And Transmission Method
App 20170026114 - SUGITANI; KIICHI ; et al. | 2017-01-26 |
Optical transmitter and method of optical transmission
Grant 9,553,674 - Tanimura , et al. January 24, 2 | 2017-01-24 |
Optical Add-drop Multiplexer
App 20160373206 - Tanimura; Takahito ; et al. | 2016-12-22 |
Optical transmission system and optical transmission method
Grant 9,467,228 - Nakashima , et al. October 11, 2 | 2016-10-11 |
Digital coherent receiving apparatus
Grant 9,444,554 - Koizumi , et al. September 13, 2 | 2016-09-13 |
Non-linear distortion compensator, method of compensating non-linear distortion, and optical receiver
Grant 9,363,014 - Oyama , et al. June 7, 2 | 2016-06-07 |
Optical transmitter and optical signal transmission method
Grant 9,356,689 - Tanimura , et al. May 31, 2 | 2016-05-31 |
Transmission Device, Receiving Device, And Communication Method
App 20160149666 - Tanimura; Takahito | 2016-05-26 |
Optical Transmitter And Waveform Distortion Correction Method
App 20160099776 - NAKASHIMA; Hisao ; et al. | 2016-04-07 |
Optical Transmission Device, Nonlinear Distortion Compensation Method, And Nonlinear Distortion Pre-equalization Method
App 20160065312 - Oyama; Tomofumi ; et al. | 2016-03-03 |
Optical transmission system, optical transmission apparatus, signal conditioning program, and signal conditioning method
Grant 9,225,459 - Oda , et al. December 29, 2 | 2015-12-29 |
Optical Transmitter And Method Of Optical Transmission
App 20150188637 - Tanimura; Takahito ; et al. | 2015-07-02 |
Optical path establishing method and optical node apparatus
Grant 8,989,572 - Tanimura , et al. March 24, 2 | 2015-03-24 |
Non-linear Distortion Compensator, Method Of Compensating Non-linear Distortion, And Optical Receiver
App 20150071630 - Oyama; Tomofumi ; et al. | 2015-03-12 |
Optical power monitor, optical power control system and optical power monitor method
Grant 8,965,202 - Sone , et al. February 24, 2 | 2015-02-24 |
Optical transmission/reception system, optical transmitter, optical receiver, and optical transmission/reception method
Grant 8,942,569 - Tanimura , et al. January 27, 2 | 2015-01-27 |
Optical receiver, optical reception method and optical reception system
Grant 8,934,789 - Sugitani , et al. January 13, 2 | 2015-01-13 |
Signal processing device and optical receiving device
Grant 8,923,708 - Tanimura December 30, 2 | 2014-12-30 |
Optical Transmission System And Optical Transmission Method
App 20140341587 - NAKASHIMA; Hisao ; et al. | 2014-11-20 |
Multi-wavelength light source
Grant 8,849,128 - Oda , et al. September 30, 2 | 2014-09-30 |
Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system
Grant 8,805,207 - Tanimura , et al. August 12, 2 | 2014-08-12 |
Chromatic dispersion monitor and method, chromatic dispersion compensator
Grant 8,798,477 - Liu , et al. August 5, 2 | 2014-08-05 |
Adaptive equalizer and method thereof
Grant 8,787,437 - Liu , et al. July 22, 2 | 2014-07-22 |
Optical receiver and optical transmission system
Grant 8,768,173 - Tanimura , et al. July 1, 2 | 2014-07-01 |
Method for electric power supply of optical receiver, digital signal processing circuit, and optical receiver
Grant 8,744,278 - Oda , et al. June 3, 2 | 2014-06-03 |
Optical receiving apparatus and digital receiving circuit
Grant 8,744,276 - Nakashima , et al. June 3, 2 | 2014-06-03 |
Optical Receiver, Optical Reception Method And Optical Reception System
App 20140119731 - Sugitani; Kiichi ; et al. | 2014-05-01 |
Digital coherent receiving apparatus
Grant 8,649,689 - Koizumi , et al. February 11, 2 | 2014-02-11 |
Digital Coherent Receiving Apparatus
App 20140029959 - KOIZUMI; Nobukazu ; et al. | 2014-01-30 |
Optical transmission system
Grant 8,594,508 - Nakashima , et al. November 26, 2 | 2013-11-26 |
Optical Transmitter And Optical Signal Transmission Method
App 20130302031 - TANIMURA; Takahito ; et al. | 2013-11-14 |
Optical Power Monitor, Optical Power Control System And Optical Power Monitor Method
App 20130251365 - SONE; Kyosuke ; et al. | 2013-09-26 |
Filter coefficient adjustment apparatus
Grant 8,532,502 - Zhang , et al. September 10, 2 | 2013-09-10 |
Optical receiver and optical receiving method
Grant 8,532,503 - Nakashima , et al. September 10, 2 | 2013-09-10 |
Nonlinear distortion detecting circuit, optical receiver, optical transmission system, and method for detecting nonlinear distortion
Grant 8,515,277 - Tanimura , et al. August 20, 2 | 2013-08-20 |
Optical Path Establishing Method And Optical Node Apparatus
App 20130209093 - TANIMURA; Takahito ; et al. | 2013-08-15 |
Optical transmitter, optical transmitter and receiver system, optical transmitting method and optical transmitting and receiving method
Grant 8,488,975 - Oda , et al. July 16, 2 | 2013-07-16 |
Distortion Compensator, Optical Receiver, Distortion Compensator And Optical Receiver Controlling Methods, And Optical Transmission System
App 20130148967 - TANIMURA; Takahito ; et al. | 2013-06-13 |
Distortion compensating apparatus, optical receiving apparatus, and optical transmitting and receiving system
Grant 8,447,190 - Tanimura , et al. May 21, 2 | 2013-05-21 |
Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system
Grant 8,447,186 - Tanimura , et al. May 21, 2 | 2013-05-21 |
Optical Transmission System, Optical Transmission Apparatus, Signal Conditioning Program, And Signal Conditioning Method
App 20130121691 - Oda; Shoichiro ; et al. | 2013-05-16 |
Filter, coherent receiver device and coherent receiving method
Grant 8,442,406 - Li , et al. May 14, 2 | 2013-05-14 |
Optical receiver for controlling wavelength of local oscillation light and local oscillation light control method
Grant 8,391,725 - Oda , et al. March 5, 2 | 2013-03-05 |
Polarization multiplexing and transmitting apparatus
Grant 8,380,084 - Tanimura , et al. February 19, 2 | 2013-02-19 |
Optical transmission system and optical transmission method
Grant 8,351,795 - Nakashima , et al. January 8, 2 | 2013-01-08 |
Multi-wavelength Light Source
App 20120243880 - ODA; Shoichiro ; et al. | 2012-09-27 |
Optical receiver and method for optical reception
Grant 8,249,464 - Oda , et al. August 21, 2 | 2012-08-21 |
Optical Receiver And Optical Transmission System
App 20120177383 - TANIMURA; Takahito ; et al. | 2012-07-12 |
Optical Receiving Apparatus And Method
App 20120141131 - TANIMURA; Takahito ; et al. | 2012-06-07 |
Polarization Multiplexing And Transmitting Apparatus
App 20120106962 - TANIMURA; Takahito ; et al. | 2012-05-03 |
Polarization multiplexing and transmitting apparatus
Grant 8,116,635 - Tanimura , et al. February 14, 2 | 2012-02-14 |
Filter coefficient changing apparatus and method
Grant 8,086,114 - Liu , et al. December 27, 2 | 2011-12-27 |
Optical receiver
Grant 8,086,113 - Nakashima , et al. December 27, 2 | 2011-12-27 |
Optical transmission system
App 20110274430 - Nakashima; Hisao ; et al. | 2011-11-10 |
Filter, Coherent Receiver Device And Coherent Receiving Method
App 20110243561 - LI; Jianqiang ; et al. | 2011-10-06 |
Optical Receiver And Receiving Method
App 20110150506 - TANIMURA; Takahito ; et al. | 2011-06-23 |
Optical Transmitter, Optical Transmitter And Receiver System, Optical Transmitting Method And Optical Transmitting And Receiving Method
App 20110097085 - Oda; Shoichiro ; et al. | 2011-04-28 |
Nonlinear Distortion Detecting Circuit, Optical Receiver, Optical Transmission System, And Method For Detecting Nonlinear Distortion
App 20110097075 - TANIMURA; Takahito ; et al. | 2011-04-28 |
Digital Coherent Receiving Apparatus
App 20100329697 - KOIZUMI; Nobukazu ; et al. | 2010-12-30 |
Optical Receiver And Method For Optical Reception
App 20100254718 - ODA; Shoichiro ; et al. | 2010-10-07 |
Signal Processing Device And Optical Receiving Device
App 20100209121 - TANIMURA; Takahito | 2010-08-19 |
Distortion Compensating Apparatus, Optical Receiving Apparatus, And Optical Transmitting And Receiving System
App 20100196017 - TANIMURA; Takahito ; et al. | 2010-08-05 |
Optical Receiver For Controlling Wavelength Of Local Oscillation Light And Local Oscillation Light Control Method
App 20100111544 - ODA; Shoichiro ; et al. | 2010-05-06 |
Optical Transmission/reception System, Optical Transmitter, Optical Receiver, And Optical Transmission/reception Method
App 20100111531 - Tanimura; Takahito ; et al. | 2010-05-06 |
Optical Receiver And Optical Receiving Method
App 20100098411 - NAKASHIMA; Hisao ; et al. | 2010-04-22 |
Method for Electric Power Supply of Optical Receiver, Digital Signal Processing Circuit, and Optical Receiver
App 20100054759 - Oda; Shoichiro ; et al. | 2010-03-04 |
Distortion Compensator, Optical Receiver, Distortion Compensator And Optical Receiver Controlling Methods, And Optical Transmission System
App 20100046961 - TANIMURA; Takahito ; et al. | 2010-02-25 |
Filter Coefficient Adjustment Apparatus
App 20100003028 - ZHANG; Huijian ; et al. | 2010-01-07 |
Optical Receiving Apparatus And Digital Receiving Circuit
App 20090317092 - NAKASHIMA; Hisao ; et al. | 2009-12-24 |
Adaptive Equalizer And Method Thereof
App 20090304064 - Liu; Ling ; et al. | 2009-12-10 |
Analog-to-digital conversion controller, optical receiving device, optical receiving method, and waveform-distortion compensating device
Grant 7,602,322 - Tanimura , et al. October 13, 2 | 2009-10-13 |
Filter coefficient changing apparatus and method
App 20090245816 - Liu; Ling ; et al. | 2009-10-01 |
Optical receiving apparatus and method
App 20090226187 - Tanimura; Takahito ; et al. | 2009-09-10 |
Monitor Circuit For Monitoring Property Of Optical Fiber Transmission Line And Quality Of Optical Signal
App 20090214201 - Oda; Shoichiro ; et al. | 2009-08-27 |
Optical transmission system and optical transmission method
App 20090087194 - Nakashima; Hisao ; et al. | 2009-04-02 |
Polarization multiplexing and transmitting apparatus
App 20090060508 - Tanimura; Takahito ; et al. | 2009-03-05 |
Analog-to-digital Conversion Controller, Optical Receiving Device, Optical Receiving Method, And Waveform-distortion Compensating Device
App 20080272943 - TANIMURA; Takahito ; et al. | 2008-11-06 |
Optical Receiver
App 20080267638 - NAKASHIMA; Hisao ; et al. | 2008-10-30 |
Analog-to-digital conversion controller, optical receiving device, optical receiving method, and waveform-distortion compensating device
App 20080198051 - Tanimura; Takahito ; et al. | 2008-08-21 |
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