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H04B10/2918
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ELECTRICITY
H04
Electric communication
H04B
TRANSMISSION
H04B10/00
Transmission systems employing electromagnetic waves other than radio-waves
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H04B10/2918
Two-way repeaters
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Patents Grants
last 30 patents
Information
Patent Grant
Signal loopback circuit and signal loopback method
Patent number
10,587,343
Issue date
Mar 10, 2020
NEC Corporation
Satoshi Mikami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communications device and method
Patent number
9,705,593
Issue date
Jul 11, 2017
Huawei Marine Networks Co., Ltd.
Wendou Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplification repeater and optical transmission station
Patent number
9,413,462
Issue date
Aug 9, 2016
Fujitsu Limited
Miki Onaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for detection of failure of an optical amplifier
Patent number
9,190,801
Issue date
Nov 17, 2015
Fujitsu Limited
Hiroyuki Itoh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for fault identification in optical communication...
Patent number
9,130,672
Issue date
Sep 8, 2015
Tyco Electronics Subsea Communications LLC
Hongbin Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplification stage for OTDR monitoring and related method...
Patent number
9,124,362
Issue date
Sep 1, 2015
PADTEC S.A.
Giorgio Grasso
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for fault identification in optical communication...
Patent number
8,135,274
Issue date
Mar 13, 2012
Tyco Electronics Subsea Communications LLC
Hongbin Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Submarine optical repeater
Patent number
8,111,453
Issue date
Feb 7, 2012
Xtera Communications, Inc.
Wayne S. Pelouch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Two-way amplifier for passive optical network (PON)
Patent number
8,098,426
Issue date
Jan 17, 2012
George BuAbbud
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Inline pump sharing architecture for remotely-pumped pre- and post-...
Patent number
8,081,880
Issue date
Dec 20, 2011
MPB Communications Inc.
Serguei Papernyi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Supervisory controlling method and supervisory controlling system o...
Patent number
8,041,231
Issue date
Oct 18, 2011
Fujitsu Limited
Kenji Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and optical amplification method used i...
Patent number
7,894,127
Issue date
Feb 22, 2011
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and optical amplification method used i...
Patent number
7,688,501
Issue date
Mar 30, 2010
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Supervisory controlling method and supervisory controlling system o...
Patent number
7,676,160
Issue date
Mar 9, 2010
Fujitsu Limited
Kenji Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dispersion-managed optical transmission system
Patent number
7,668,465
Issue date
Feb 23, 2010
Fujitsu Limited
Toshiki Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Bidirectional communication system
Patent number
7,512,343
Issue date
Mar 31, 2009
CIENA Corporation
Balakrishnan Sridhar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Integrated optical dual amplifier
Patent number
7,460,298
Issue date
Dec 2, 2008
Oplink Communications, Inc.
Jinghui Li
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dispersion-managed optical transmission system
Patent number
7,457,546
Issue date
Nov 25, 2008
Fujitsu Limited
Toshiki Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission apparatus and optical transmission system
Patent number
7,376,355
Issue date
May 20, 2008
Fujitsu Limited
Kenji Ota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and optical filter assembly for submari...
Patent number
7,355,787
Issue date
Apr 8, 2008
Alcatel
Gabriel Charlet
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system with raman amplifiers comprising a supe...
Patent number
7,274,871
Issue date
Sep 25, 2007
Alcatel
Roberto Avallone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system with raman amplifiers comprising a supe...
Patent number
7,254,326
Issue date
Aug 7, 2007
Alcatel
Roberto Avallone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High density optical packaging
Patent number
7,196,838
Issue date
Mar 27, 2007
Dorsal Networks, Inc.
Robert M. Adams, Sr.
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission device and repeater
Patent number
7,174,108
Issue date
Feb 6, 2007
Fujitsu Limited
Yuji Kamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical repeating system and optical amplifying repeater control me...
Patent number
7,158,728
Issue date
Jan 2, 2007
Mitsubishi Denki Kabushiki Kaisha
Yasunori Kasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Repeater and Raman amplification repeating system
Patent number
7,146,100
Issue date
Dec 5, 2006
Fujitsu Limited
Takeo Osaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical repeating system and optical amplifying repeater control me...
Patent number
7,130,544
Issue date
Oct 31, 2006
Mitsubishi Denki Kabushiki Kaisha
Yasunori Kasahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifying and relaying system
Patent number
7,123,405
Issue date
Oct 17, 2006
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High power repeaters for Raman amplified, wave division multiplexed...
Patent number
7,120,362
Issue date
Oct 10, 2006
Bo Pedersen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication systems including optical amplifiers and ampl...
Patent number
7,088,500
Issue date
Aug 8, 2006
Broadwing Corporation
Thomas D. Stephens
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SIGNAL LOOPBACK CIRCUIT AND SIGNAL LOOPBACK METHOD
Publication number
20190097727
Publication date
Mar 28, 2019
NEC Corporation
Satoshi MIKAMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and Method for Fault Identification in Optical Communication...
Publication number
20140212131
Publication date
Jul 31, 2014
TYCO ELECTRONICS SUBSEA COMMUNICATIONS LLC
Hongbin Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL AMPLIFIER AND FAILURE DETECTION METHOD
Publication number
20140158867
Publication date
Jun 12, 2014
Fujitsu Limited
Hiroyuki ITOH
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL AMPLIFICATION STAGE FOR OTDR MONITORING AND RELATED METHOD...
Publication number
20140105595
Publication date
Apr 17, 2014
PADTEC S.A.
GIORGIO GRASSO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Two-Way Amplifier For Passive Optical Network (PON)
Publication number
20100296156
Publication date
Nov 25, 2010
IPG Photonics Corporation
George BuAbbud
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SUBMARINE OPTICAL REPEATER
Publication number
20100209110
Publication date
Aug 19, 2010
Xtera Communications, Inc.
Wayne S. Pelouch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION USING COUPLED OPTICALLY PUMPED AMPLIFIERS
Publication number
20100183305
Publication date
Jul 22, 2010
Xtera Communications, Inc.
DO-IL CHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Supervisory controlling method and supervisory controlling system o...
Publication number
20100142974
Publication date
Jun 10, 2010
FUJITSU LIMITED
Kenji Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND OPTICAL AMPLIFICATION METHOD USED I...
Publication number
20090296198
Publication date
Dec 3, 2009
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Bi-directional propagation optical signal regenerator and optical s...
Publication number
20090279164
Publication date
Nov 12, 2009
OSAKA UNIVERSITY
Masayuki Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and Method for Fault Identification in Optical Communication...
Publication number
20090202237
Publication date
Aug 13, 2009
Tyco Telecommunications (US) Inc.
Hongbin Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISPERSION-MANAGED OPTICAL TRANSMISSION SYSTEM
Publication number
20080226303
Publication date
Sep 18, 2008
FUJITSU LIMITED
Toshiki Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INLINE PUMP SHARING ARCHITECTURE FOR REMOTELY-PUMPED PRE- AND POST-...
Publication number
20080152352
Publication date
Jun 26, 2008
MPB Communications Inc.
Serguei Papernyi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system and optical filter assembly for submari...
Publication number
20070115539
Publication date
May 24, 2007
ALCATEL
Gabriel Charlet
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Systems and methods for optical pump redundancy
Publication number
20060140633
Publication date
Jun 29, 2006
Sanmina-SCI Corporation
Brian Chaput
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Suppression of power transients in optically amplified links
Publication number
20060127086
Publication date
Jun 15, 2006
CIENA Corporation
Michael Y. Frankel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Bidirectional communication system
Publication number
20060023754
Publication date
Feb 2, 2006
CIENA Corporation
Balakrishnan Sridhar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical communication systems including optical amplifiers and ampl...
Publication number
20050259316
Publication date
Nov 24, 2005
Broadwing Corporation
Thomas D. Stephens
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Underwater repeater employing rare earth element doped fiber amplif...
Publication number
20050226622
Publication date
Oct 13, 2005
KDDI Submarine Cable Systems Inc.
Patrick R. Trischitta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifying and repeating method and optical amplifying and...
Publication number
20050226614
Publication date
Oct 13, 2005
FUJITSU LIMITED
Hiroshi Ogiwara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission apparatus and optical transmission system
Publication number
20050213980
Publication date
Sep 29, 2005
FUJITSU LIMITED
Kenji Ota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifier, optical amplifying repeater and transmission app...
Publication number
20050185258
Publication date
Aug 25, 2005
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Repeater and Raman amplification repeating system
Publication number
20050179989
Publication date
Aug 18, 2005
FUJITSU LIMITED
Takeo Osaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system with raman amplifiers comprising a supe...
Publication number
20050117839
Publication date
Jun 2, 2005
Roberto Avallone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical communication systems including optical amplifiers and ampl...
Publication number
20050094255
Publication date
May 5, 2005
Crovis Corporation
Thomas D. Stephens
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifier, optical amplifying repeater and transmission app...
Publication number
20050094251
Publication date
May 5, 2005
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifier, optical amplifying repeater and transmission app...
Publication number
20050088725
Publication date
Apr 28, 2005
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system with raman amplifiers comprising a supe...
Publication number
20050078351
Publication date
Apr 14, 2005
Roberto Avallone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Integrated optical dual amplifier
Publication number
20040212875
Publication date
Oct 28, 2004
Jinghui Li
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifier, optical amplifying repeater and transmission app...
Publication number
20040170434
Publication date
Sep 2, 2004
NEC Corporation
Ryu Yokoyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE