Cechan Tian

Person

Plano, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Free-space DQPSK demodulator
- Patent number 8,218,975
- Issue date Jul 10, 2012
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Flexible open ring optical network and method
- Patent number 7,970,278
- Issue date Jun 28, 2011
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Flexible open ring optical network and method
- Patent number 7,957,644
- Issue date Jun 7, 2011
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulating a signal using a fractional phase modulator
- Patent number 7,912,378
- Issue date Mar 22, 2011
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulating a signal according to 2n-PSK modulation
- Patent number 7,860,402
- Issue date Dec 28, 2010
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical ring network for extended broadcasting
- Patent number 7,826,743
- Issue date Nov 2, 2010
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Monitoring modulator bias using photon absorption
- Patent number 7,801,393
- Issue date Sep 21, 2010
- Fujitsu Limited
- Cechan Tian
- G02 - OPTICS
Information Patent Grant
Free space demodulator for demodulating a signal
- Patent number 7,668,466
- Issue date Feb 23, 2010
- Fujitsui Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for shared optical regeneration
- Patent number 7,664,391
- Issue date Feb 16, 2010
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Monitoring differential phase-shifted keying demodulation
- Patent number 7,653,124
- Issue date Jan 26, 2010
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic blocking of token-controlled data transmissions in communic...
- Patent number 7,650,076
- Issue date Jan 19, 2010
- Fujitsu Limited
- Ching-Fong Su
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Demodulating a signal by performing consecutive beam splitting
- Patent number 7,650,083
- Issue date Jan 19, 2010
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for a data centric architecture in an optical net...
- Patent number 7,603,035
- Issue date Oct 13, 2009
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Monitoring modulator bias using photon absorption
- Patent number 7,539,360
- Issue date May 26, 2009
- Fujitsu Limited
- Cechan Tian
- G02 - OPTICS
Information Patent Grant
Monitoring modulation alignment variation using photon absorption
- Patent number 7,466,877
- Issue date Dec 16, 2008
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for determining gain for an optical signal
- Patent number 7,400,440
- Issue date Jul 15, 2008
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reducing polarization dependence of a wavelength dispersion variati...
- Patent number 7,379,235
- Issue date May 27, 2008
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical network with selective mode switching
- Patent number 7,369,765
- Issue date May 6, 2008
- Fujitsu Limited
- Yasuhiko Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for management of directly connected optical comp...
- Patent number 7,305,184
- Issue date Dec 4, 2007
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for setting a tunable filter in an optical network
- Patent number 7,283,750
- Issue date Oct 16, 2007
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Directing optical channels using a reflective device
- Patent number 7,254,292
- Issue date Aug 7, 2007
- Fujitsu Limited
- Cechan Tian
- G02 - OPTICS
Information Patent Grant
Flexible open ring optical network and method
- Patent number 7,231,148
- Issue date Jun 12, 2007
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for protecting traffic in a hubbed optical ring n...
- Patent number 7,120,360
- Issue date Oct 10, 2006
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for control signaling in an open ring optical net...
- Patent number 7,116,905
- Issue date Oct 3, 2006
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Passive add/drop amplifier for optical networks and method
- Patent number 7,085,496
- Issue date Aug 1, 2006
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for testing during operation of an open ring opti...
- Patent number 7,076,163
- Issue date Jul 11, 2006
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Combining and distributing amplifiers for optical network and method
- Patent number 7,075,712
- Issue date Jul 11, 2006
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for controlling a secondary amplifier with a prim...
- Patent number 7,057,149
- Issue date Jun 6, 2006
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for determining gain for an optical signal
- Patent number 7,027,210
- Issue date Apr 11, 2006
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power tilt compensation using automatic power balance control
- Patent number 7,009,761
- Issue date Mar 7, 2006
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Free-Space DQPSK Demodulator
- Publication number 20110044698
- Publication date Feb 24, 2011
- Fujitsu Limited
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Monitoring Modulator Bias Using Photon Absorption
- Publication number 20090201564
- Publication date Aug 13, 2009
- FUJITSU LIMITED
- Cechan Tian
- G02 - OPTICS
Information Patent Application
Modulating A Signal According To 2n-PSK Modulation
- Publication number 20080181618
- Publication date Jul 31, 2008
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Modulating A Signal Using A Fractional Phase Modulator
- Publication number 20080181332
- Publication date Jul 31, 2008
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Monitoring Differential Phase-Shifted Keying Demodulation
- Publication number 20080080854
- Publication date Apr 3, 2008
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Demodulating a signal using a 1 x m coupler
- Publication number 20080002994
- Publication date Jan 3, 2008
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Demodulating a signal by performing consecutive beam splitting
- Publication number 20080002980
- Publication date Jan 3, 2008
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Free space demodulator for demodulating a signal
- Publication number 20080002987
- Publication date Jan 3, 2008
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Flexible Open Ring Optical Network and Method
- Publication number 20070223371
- Publication date Sep 27, 2007
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Directing Optical Channels Using a Reflective Device
- Publication number 20070217790
- Publication date Sep 20, 2007
- Fujitsu Limited
- Cechan Tian
- G02 - OPTICS
Information Patent Application
Flexible Open Ring Optical Network and Method
- Publication number 20070206493
- Publication date Sep 6, 2007
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Analyzing the quality of an optical waveform
- Publication number 20070166033
- Publication date Jul 19, 2007
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dynamic blocking of token-controlled data transmissions in communic...
- Publication number 20070110438
- Publication date May 17, 2007
- FUJITSU LIMITED
- Ching-Fong Su
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Monitoring modulator bias using photon absorption
- Publication number 20070070486
- Publication date Mar 29, 2007
- FUJITSU LIMITED
- Cechan Tian
- G02 - OPTICS
Information Patent Application
Monitoring modulation alignment variation using photon absorption
- Publication number 20070070487
- Publication date Mar 29, 2007
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reducing polarization dependence of a wavelength dispersion variati...
- Publication number 20060250682
- Publication date Nov 9, 2006
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for improving upstream efficiency in extended bro...
- Publication number 20060216029
- Publication date Sep 28, 2006
- FUJITSU LIMITED
- Olga I. Vassilieva
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Monitoring wavelength dispersion variation using photon absorption
- Publication number 20060188255
- Publication date Aug 24, 2006
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD FOR PROTECTING TRAFFIC IN A HUBBED OPTICAL RING N...
- Publication number 20060147209
- Publication date Jul 6, 2006
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for shared optical regeneration
- Publication number 20060133802
- Publication date Jun 22, 2006
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Directing optical channels using a reflective device
- Publication number 20060133723
- Publication date Jun 22, 2006
- Cechan Tian
- G02 - OPTICS
Information Patent Application
Method and system for shared optical protection
- Publication number 20060133803
- Publication date Jun 22, 2006
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for determining gain for an optical signal
- Publication number 20060126165
- Publication date Jun 15, 2006
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical ring network for extended broadcasting
- Publication number 20060110162
- Publication date May 25, 2006
- Fujitsu Network Communications, Inc.
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for a data centric architecture in an optical net...
- Publication number 20060051091
- Publication date Mar 9, 2006
- Fujitsu Network Communications, Inc.
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for setting a tunable filter in an optical network
- Publication number 20060018660
- Publication date Jan 26, 2006
- Fujitsu Network Communications, Inc.
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for communicating traffic between optical rings
- Publication number 20050196169
- Publication date Sep 8, 2005
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical network with selective mode switching
- Publication number 20050191054
- Publication date Sep 1, 2005
- Yasuhiko Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Photonic data storage network
- Publication number 20050185959
- Publication date Aug 25, 2005
- FUJITSU LIMITED
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for increasing network capacity in an optical net...
- Publication number 20050095001
- Publication date May 5, 2005
- FUJITSU LIMITED
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Cechan Tian

Person

Patents Grantslast 30 patents

Free-space DQPSK demodulator

Flexible open ring optical network and method

Flexible open ring optical network and method

Modulating a signal using a fractional phase modulator

Modulating a signal according to 2n-PSK modulation

Optical ring network for extended broadcasting

Monitoring modulator bias using photon absorption

Free space demodulator for demodulating a signal

Method and system for shared optical regeneration

Monitoring differential phase-shifted keying demodulation

Dynamic blocking of token-controlled data transmissions in communic...

Demodulating a signal by performing consecutive beam splitting

Method and system for a data centric architecture in an optical net...

Monitoring modulator bias using photon absorption

Monitoring modulation alignment variation using photon absorption

Method and system for determining gain for an optical signal

Reducing polarization dependence of a wavelength dispersion variati...

Optical network with selective mode switching

Method and system for management of directly connected optical comp...

System and method for setting a tunable filter in an optical network

Directing optical channels using a reflective device

Flexible open ring optical network and method

System and method for protecting traffic in a hubbed optical ring n...

Method and system for control signaling in an open ring optical net...

Passive add/drop amplifier for optical networks and method

Method and system for testing during operation of an open ring opti...

Combining and distributing amplifiers for optical network and method

Method and system for controlling a secondary amplifier with a prim...

Method and system for determining gain for an optical signal

Power tilt compensation using automatic power balance control

Patents Applicationslast 30 patents

Free-Space DQPSK Demodulator

Monitoring Modulator Bias Using Photon Absorption

Modulating A Signal According To 2n-PSK Modulation

Modulating A Signal Using A Fractional Phase Modulator

Monitoring Differential Phase-Shifted Keying Demodulation

Demodulating a signal using a 1 x m coupler

Demodulating a signal by performing consecutive beam splitting

Free space demodulator for demodulating a signal

Flexible Open Ring Optical Network and Method

Directing Optical Channels Using a Reflective Device

Flexible Open Ring Optical Network and Method

Analyzing the quality of an optical waveform

Dynamic blocking of token-controlled data transmissions in communic...

Monitoring modulator bias using photon absorption

Monitoring modulation alignment variation using photon absorption

Reducing polarization dependence of a wavelength dispersion variati...

Method and system for improving upstream efficiency in extended bro...

Monitoring wavelength dispersion variation using photon absorption

SYSTEM AND METHOD FOR PROTECTING TRAFFIC IN A HUBBED OPTICAL RING N...

Method and system for shared optical regeneration

Directing optical channels using a reflective device

Method and system for shared optical protection

Method and system for determining gain for an optical signal

Optical ring network for extended broadcasting

Method and system for a data centric architecture in an optical net...

System and method for setting a tunable filter in an optical network

System and method for communicating traffic between optical rings

Optical network with selective mode switching

Photonic data storage network

Method and system for increasing network capacity in an optical net...