JPWO2021079647A1 - - Google Patents

Info

Publication number
JPWO2021079647A1
JPWO2021079647A1 JP2021554153A JP2021554153A JPWO2021079647A1 JP WO2021079647 A1 JPWO2021079647 A1 JP WO2021079647A1 JP 2021554153 A JP2021554153 A JP 2021554153A JP 2021554153 A JP2021554153 A JP 2021554153A JP WO2021079647 A1 JPWO2021079647 A1 JP WO2021079647A1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2021554153A
Other versions
JPWO2021079647A5 (ja
JP7327502B2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2021079647A1 publication Critical patent/JPWO2021079647A1/ja
Publication of JPWO2021079647A5 publication Critical patent/JPWO2021079647A5/ja
Application granted granted Critical
Publication of JP7327502B2 publication Critical patent/JP7327502B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H04B10/541—Digital intensity or amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/612—Coherent receivers for optical signals modulated with a format different from binary or higher-order PSK [X-PSK], e.g. QAM, DPSK, FSK, MSK, ASK
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP2021554153A 2019-10-21 2020-09-11 フィルタ係数更新量出力装置、フィルタ係数更新装置、フィルタ係数更新量出力方法及びフィルタ係数更新量出力プログラム Active JP7327502B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019191623 2019-10-21
JP2019191623 2019-10-21
PCT/JP2020/034526 WO2021079647A1 (ja) 2019-10-21 2020-09-11 係数更新量出力装置、係数更新装置、係数更新量出力方法及び記録媒体

Publications (3)

Publication Number Publication Date
JPWO2021079647A1 true JPWO2021079647A1 (ja) 2021-04-29
JPWO2021079647A5 JPWO2021079647A5 (ja) 2022-07-05
JP7327502B2 JP7327502B2 (ja) 2023-08-16

Family

ID=75619799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021554153A Active JP7327502B2 (ja) 2019-10-21 2020-09-11 フィルタ係数更新量出力装置、フィルタ係数更新装置、フィルタ係数更新量出力方法及びフィルタ係数更新量出力プログラム

Country Status (3)

Country Link
US (1) US12009868B2 (ja)
JP (1) JP7327502B2 (ja)
WO (1) WO2021079647A1 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118215A1 (ja) * 2011-03-02 2012-09-07 日本電気株式会社 光受信器、偏波分離装置、および光受信方法
WO2018198891A1 (ja) * 2017-04-25 2018-11-01 日本電気株式会社 信号合成装置及び信号合成方法
WO2019198465A1 (ja) * 2018-04-12 2019-10-17 日本電気株式会社 光空間通信システム、光受信装置、光受信方法、及び非一時的なコンピュータ可読媒体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101552640B (zh) * 2008-04-01 2012-04-11 富士通株式会社 滤波器系数变更装置和方法
WO2010128577A1 (ja) * 2009-05-07 2010-11-11 日本電気株式会社 コヒーレント受信機
US9037004B2 (en) * 2011-02-01 2015-05-19 Nec Corporation Optical receiver, polarization separation device and polarization separating method
JP5943001B2 (ja) * 2011-12-07 2016-06-29 日本電気株式会社 等化信号処理装置、それを用いた光受信装置および等化信号処理方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118215A1 (ja) * 2011-03-02 2012-09-07 日本電気株式会社 光受信器、偏波分離装置、および光受信方法
WO2018198891A1 (ja) * 2017-04-25 2018-11-01 日本電気株式会社 信号合成装置及び信号合成方法
WO2019198465A1 (ja) * 2018-04-12 2019-10-17 日本電気株式会社 光空間通信システム、光受信装置、光受信方法、及び非一時的なコンピュータ可読媒体

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHO, J. ET AL.: "Probabilistic Constellation Shaping for Optical Fiber Communications", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 37, no. 6, JPN6020047388, March 2019 (2019-03-01), US, pages 1590 - 1607, XP011717096, ISSN: 0005007339, DOI: 10.1109/JLT.2019.2898855 *
SAVORY, S. J. ET AL.: "Digital filters for coherent optical receivers", OPTICS EXPRESS, vol. 16, no. 2, JPN6020047391, January 2008 (2008-01-01), US, pages 804 - 817, XP007906766, ISSN: 0005007340, DOI: 10.1364/OE.16.000804 *

Also Published As

Publication number Publication date
WO2021079647A1 (ja) 2021-04-29
US12009868B2 (en) 2024-06-11
US20240056195A1 (en) 2024-02-15
JP7327502B2 (ja) 2023-08-16

Similar Documents

Publication Publication Date Title
BR112021017339A2 (ja)
BR112021013854A2 (ja)
BR112021018450A2 (ja)
BR112021017939A2 (ja)
BR112021017892A2 (ja)
BR112021017738A2 (ja)
BR112021017782A2 (ja)
BR112021018168A2 (ja)
BR112021017728A2 (ja)
BR112021018452A2 (ja)
BR112021017355A2 (ja)
BR112021017703A2 (ja)
BR112021018102A2 (ja)
BR112021017083A2 (ja)
BR112021017637A2 (ja)
BR112021012348A2 (ja)
BR112021018250A2 (ja)
BR112021018093A2 (ja)
BR112021018084A2 (ja)
BR112021018484A2 (ja)
BR112021017732A2 (ja)
BR112021017949A2 (ja)
BR112021017983A2 (ja)
BR112021016205A2 (ja)
BR112021016996A2 (ja)

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220406

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220406

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230307

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230426

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230704

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230717

R151 Written notification of patent or utility model registration

Ref document number: 7327502

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151