JP6228108B2 - 無線通信システム - Google Patents

無線通信システム Download PDF

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Publication number
JP6228108B2
JP6228108B2 JP2014256169A JP2014256169A JP6228108B2 JP 6228108 B2 JP6228108 B2 JP 6228108B2 JP 2014256169 A JP2014256169 A JP 2014256169A JP 2014256169 A JP2014256169 A JP 2014256169A JP 6228108 B2 JP6228108 B2 JP 6228108B2
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Japan
Prior art keywords
output
frequency
circuit
communication system
wireless communication
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Expired - Fee Related
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JP2014256169A
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English (en)
Japanese (ja)
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JP2016119498A5 (enExample
JP2016119498A (ja
Inventor
武井　健
健 武井
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Hitachi Ltd
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Hitachi Ltd
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Priority to JP2014256169A priority Critical patent/JP6228108B2/ja
Priority to US14/964,905 priority patent/US9762296B2/en
Publication of JP2016119498A publication Critical patent/JP2016119498A/ja
Publication of JP2016119498A5 publication Critical patent/JP2016119498A5/ja
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Publication of JP6228108B2 publication Critical patent/JP6228108B2/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects
    • 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
    • H04B10/532—Polarisation modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0002—Modulated-carrier systems analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/04—Channels characterised by the type of signal the signals being represented by different amplitudes or polarities, e.g. quadriplex

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radio Transmission System (AREA)
  • Quality & Reliability (AREA)
JP2014256169A 2014-12-18 2014-12-18 無線通信システム Expired - Fee Related JP6228108B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014256169A JP6228108B2 (ja) 2014-12-18 2014-12-18 無線通信システム
US14/964,905 US9762296B2 (en) 2014-12-18 2015-12-10 Wireless communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014256169A JP6228108B2 (ja) 2014-12-18 2014-12-18 無線通信システム

Publications (3)

Publication Number Publication Date
JP2016119498A JP2016119498A (ja) 2016-06-30
JP2016119498A5 JP2016119498A5 (enExample) 2017-03-09
JP6228108B2 true JP6228108B2 (ja) 2017-11-08

Family

ID=56130707

Family Applications (1)

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JP2014256169A Expired - Fee Related JP6228108B2 (ja) 2014-12-18 2014-12-18 無線通信システム

Country Status (2)

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US (1) US9762296B2 (enExample)
JP (1) JP6228108B2 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016075785A1 (ja) * 2014-11-13 2016-05-19 株式会社日立製作所 無線通信システムおよびその利用システム
SG11201802411XA (en) * 2016-07-07 2018-04-27 Hitachi Ltd Radio communication system, elevator control system using same, and substation facility monitoring system
CN106230494A (zh) * 2016-07-21 2016-12-14 武汉芯泰科技有限公司 一种极化频分复用方法、装置及系统
CN109906589A (zh) * 2016-11-11 2019-06-18 日本电信电话株式会社 无线通信系统和无线通信方法
JP2018088570A (ja) * 2016-11-28 2018-06-07 株式会社日立製作所 無線システム、遮蔽構内無線システム、無線機
US10136002B2 (en) * 2016-11-30 2018-11-20 Kyocera Document Solutions Inc. Cloud-based document quality assurance
US10804997B2 (en) 2017-02-10 2020-10-13 CTwists, LLC Apparatus and method for generating and capturing a transmission wave and apparatus and method for transmitting and receiving digital information
US10868609B1 (en) * 2018-05-30 2020-12-15 Eagle Technology, Llc Diversity polarization modulation
JP7132025B2 (ja) * 2018-08-10 2022-09-06 株式会社日立製作所 判定システム及び方法
JP7139188B2 (ja) * 2018-08-21 2022-09-20 株式会社日立製作所 送信機
CN120034872B (zh) * 2025-04-21 2025-06-17 福州市公安局 一种多设备自组网通讯方法、设备及存储介质

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Publication number Priority date Publication date Assignee Title
US3760274A (en) * 1971-10-13 1973-09-18 Us Army Modulation of polarization orientation and concurrent conventional modulation of the same radiated carrier
SE467385B (sv) * 1990-10-05 1992-07-06 Ericsson Telefon Ab L M Foerfarande foer att minska risken foer daalig mottagning i ett mobiltelefonisystem
JPH07105776B2 (ja) * 1993-04-23 1995-11-13 日本電気株式会社 交差偏波通信方式
JP2949216B2 (ja) * 1996-10-31 1999-09-13 電気通信大学長 偏波面回転による変調送受信方法
US6204810B1 (en) 1997-05-09 2001-03-20 Smith Technology Development, Llc Communications system
TW406488B (en) 1997-05-09 2000-09-21 Basic Res Corp Communications system
JPH10332805A (ja) 1997-06-03 1998-12-18 Hitachi Constr Mach Co Ltd アンテナ追尾装置
WO2001086823A2 (en) * 2000-05-05 2001-11-15 Celletra, Ltd. System and method for providing polarization matching on a cellular communication forward link
US20020181439A1 (en) * 2000-08-30 2002-12-05 Masayuki Orihashi Data transmitting apparatus, radio communication system and radio communication method
JP4317372B2 (ja) * 2002-02-27 2009-08-19 パナソニック株式会社 偏波測定装置並びにそれを用いたアンテナ特性測定装置及び電波測定装置
US7310379B2 (en) * 2002-12-30 2007-12-18 Motorola, Inc. Polarization state techniques for wireless communications
JP4760333B2 (ja) 2005-11-28 2011-08-31 セイコーエプソン株式会社 無線通信装置および無線通信方法
JP2010016572A (ja) * 2008-07-02 2010-01-21 Fujitsu Ltd 無線通信装置及びシステム
US7957425B2 (en) * 2009-07-07 2011-06-07 Nigel Iain Stuart Macrae Communicating distinct data using polarized data signals
US8537657B2 (en) * 2009-07-24 2013-09-17 Raytheon Company Cross domain modulation scheme for a wireless communication link
JP5632530B2 (ja) * 2011-03-09 2014-11-26 株式会社日立製作所 偏波角度分割ダイバシチ無線送信機、無線受信機、および無線通信システム
US8594602B2 (en) * 2011-10-31 2013-11-26 Raytheon Applied Signal Technology, Inc. Fast cross-pole corrector
CN104094541B (zh) * 2012-03-23 2017-04-26 株式会社日立制作所 无线通信系统、升降机控制系统以及变电设备控制系统
WO2014128906A1 (ja) * 2013-02-22 2014-08-28 株式会社 日立製作所 無線通信システム、送信機、受信機、昇降機制御システム、及び、変電設備監視システム
WO2014155470A1 (ja) * 2013-03-25 2014-10-02 株式会社 日立製作所 無線送信機、無線通信システム、昇降機制御・監視システム、および、変電設備制御・監視システム
US10470039B2 (en) * 2013-10-18 2019-11-05 Hitachi, Ltd. Highly-secure wireless communication system
WO2016075785A1 (ja) * 2014-11-13 2016-05-19 株式会社日立製作所 無線通信システムおよびその利用システム

Also Published As

Publication number Publication date
JP2016119498A (ja) 2016-06-30
US9762296B2 (en) 2017-09-12
US20160182185A1 (en) 2016-06-23

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