Issued Patents All Time
Showing 51–75 of 102 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9014575 | Sampling clock synchronizing apparatus, digital coherent receiving apparatus, and sampling clock synchronizing method | Takeshi Hoshida | 2015-04-21 |
| 8989572 | Optical path establishing method and optical node apparatus | Takahito Tanimura, Takeshi Hoshida | 2015-03-24 |
| 8942569 | Optical transmission/reception system, optical transmitter, optical receiver, and optical transmission/reception method | Takahito Tanimura, Takeshi Hoshida | 2015-01-27 |
| 8942574 | Light receiving device and light receiving method | Takeshi Hoshida | 2015-01-27 |
| 8873973 | Digital coherent receiver and phase control method | Kosuke Komaki | 2014-10-28 |
| 8805207 | Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system | Takahito Tanimura, Takeshi Hoshida, Shoichiro Oda | 2014-08-12 |
| 8762086 | Phase imbalance monitoring apparatus, amplitude imbalance monitoring apparatus, and apparatus using the same | Zhenning Tao, Jun Tian, Huijian Zhang | 2014-06-24 |
| 8750443 | Phase error estimator, coherent receiver and phase error estimating method | Zhenning Tao, Lei Li | 2014-06-10 |
| 8744276 | Optical receiving apparatus and digital receiving circuit | Takeshi Hoshida, Takahito Tanimura, Lei Li, Ling Liu | 2014-06-03 |
| 8744278 | Method for electric power supply of optical receiver, digital signal processing circuit, and optical receiver | Shoichiro Oda, Takeshi Hoshida, Takahito Tanimura | 2014-06-03 |
| 8705981 | Driver circuit of optical modulator | Tomoo Takahara, Takeshi Hoshida | 2014-04-22 |
| 8693898 | Adaptive equalizer, optical receiver, and tap coefficient correcting method | Nobukazu Koizumi, Kazuhiko Hatae, Noriyasu Nakayama, Koji Nakamuta, Kosuke Komaki | 2014-04-08 |
| 8660438 | Digital coherent receiver and receiving method | Takeshi Hoshida, Kosuke Komaki | 2014-02-25 |
| 8649689 | Digital coherent receiving apparatus | Nobukazu Koizumi, Takeshi Hoshida, Takahito Tanimura, Koji Nakamuta, Noriyasu Nakayama | 2014-02-11 |
| 8649685 | Light receiving device and light receiving method | Takeshi Hoshida | 2014-02-11 |
| 8625996 | Optical transmitter, optical transmission method, and wavelength-selective variable delayer | Toshiki Tanaka, Takeshi Hoshida, Toru Katagiri, Hiroki Ooi, Akira Miura | 2014-01-07 |
| 8594508 | Optical transmission system | Takeshi Hoshida, Takahito Tanimura, Toru Katagiri, Shoichiro Oda | 2013-11-26 |
| 8571407 | Optical coherent receiver, apparatus for and method of monitoring performance thereof | Lei Li, Zhenning Tao | 2013-10-29 |
| 8553825 | Phase synchronization apparatus and digital coherent light receiver | Kiichi Sugitani, Kazunari Shiota, Yuji Ishii | 2013-10-08 |
| 8532503 | Optical receiver and optical receiving method | Takahito Tanimura | 2013-09-10 |
| 8526828 | Optical transmitter and optical transmitter unit | Takeshi Hoshida | 2013-09-03 |
| 8515277 | Nonlinear distortion detecting circuit, optical receiver, optical transmission system, and method for detecting nonlinear distortion | Takahito Tanimura, Takeshi Hoshida | 2013-08-20 |
| 8447186 | Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system | Takahito Tanimura, Takeshi Hoshida, Shoichiro Oda | 2013-05-21 |
| 8447190 | Distortion compensating apparatus, optical receiving apparatus, and optical transmitting and receiving system | Takahito Tanimura, Takeshi Hoshida, Kazunari Shiota, Kiichi Sugitani | 2013-05-21 |
| 8406635 | Optical communication system and optical receiver | Takeshi Hoshida | 2013-03-26 |