Patent | Date |
---|
Adaptive Equalizer, Adaptive Equalization Method, And Optical Communication System App 20220303012 - TAKAMUKU; Tomohiro ;   et al. | 2022-09-22 |
Frame synchronization apparatus, optical communication apparatus, and frame synchronization method Grant 11,323,238 - Yoshida , et al. May 3, 2 | 2022-05-03 |
Frame synchronization apparatus, optical communication apparatus, and frame synchronization method Grant 11,201,721 - Yoshida , et al. December 14, 2 | 2021-12-14 |
Adaptive Equalization Device, Adaptive Equalization Method, And Communication Device App 20210344424 - TAKAMUKU; Tomohiro ;   et al. | 2021-11-04 |
Phase variation compensation device, phase variation compensation method and communication device Grant 11,121,778 - Takamuku , et al. September 14, 2 | 2021-09-14 |
Frame Synchronization Apparatus, Optical Communication Apparatus, And Frame Synchronization Method App 20210273777 - YOSHIDA; Mitsuteru ;   et al. | 2021-09-02 |
Phase Variation Compensation Device, Phase Variation Compensation Method And Communication Device App 20210273732 - TAKAMUKU; Tomohiro ;   et al. | 2021-09-02 |
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 communication device Grant 10,880,193 - Yoshida , et al. December 29, 2 | 2020-12-29 |
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 transmission device, and method for optical receiver Grant 10,742,354 - Nakamura , et al. A | 2020-08-11 |
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 |
Signal-to-noise Ratio Estimation Method, Optical Transmission Apparatus, And Optical Transmission System App 20200028586 - OKAMOTO; Seiji ;   et al. | 2020-01-23 |
Error Correction Device, Error Correction Method, And Communication Device App 20200028767 - YOSHIDA; Mitsuteru ;   et al. | 2020-01-23 |
Known signal detection method Grant 10,523,335 - Onuma , et al. Dec | 2019-12-31 |
Chromatic dispersion estimating circuit, optical reception device and chromatic dispersion amount estimating method Grant 10,422,719 - Yamazaki , et al. Sept | 2019-09-24 |
Optical Receiver, Optical Transmission Device, And Method For Optical Receiver App 20190288793 - NAKAMURA; Masanori ;   et al. | 2019-09-19 |
Optical Transmitter, Optical Receiver, Optical Data Transmission System, Optical Transmission Method, And Optical Reception Meth App 20190273560 - HORIKOSHI; Kengo ;   et al. | 2019-09-05 |
Coherent optical reception device Grant 10,389,452 - Horikoshi , et al. A | 2019-08-20 |
Optical transmission distortion compensation device, optical transmission distortion compensation method, and communication device Grant 10,374,718 - Onuma , et al. | 2019-08-06 |
Known Signal Detection Method App 20190165868 - ONUMA; Yasuharu ;   et al. | 2019-05-30 |
Optical Transmission Distortion Compensation Device, Optical Transmission Distortion Compensation Method, And Communication Device App 20190132051 - ONUMA; Yasuharu ;   et al. | 2019-05-02 |
Transmission Characteristic Compensation Apparatus, Transmission Characteristic Compensation Method, And Communication Apparatus App 20190074903 - TAKAMUKU; Tomohiro ;   et al. | 2019-03-07 |
Coherent Optical Reception Device App 20190013876 - HORIKOSHI; Kengo ;   et al. | 2019-01-10 |
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 |
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 receiving device and phase cycle reduction method Grant 9,667,350 - Horikoshi , et al. May 30, 2 | 2017-05-30 |
Optical Signal Transmission Apparatus And Optical Signal Transmission Method App 20170070296 - OKAMOTO; Seiji ;   et al. | 2017-03-09 |
Optical Transmission System, Phase Compensation Method, And Optical Reception Apparatus App 20150372766 - YOSHIDA; Mitsuteru ;   et al. | 2015-12-24 |
Optical Receiving Device And Phase Cycle Reduction Method App 20150333838 - HORIKOSHI; Kengo ;   et al. | 2015-11-19 |