Richard Epworth

Person

Hertfordshire, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Spectral shaping for optical OFDM transmission
- Patent number 7,580,630
- Issue date Aug 25, 2009
- Nortel Networks Limited
- Huai Kee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reference phase and amplitude estimation for coherent optical receiver
- Patent number 7,469,106
- Issue date Dec 23, 2008
- Nortel Networks Limited
- Ricardo Feced
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coherent receiver
- Patent number 7,315,584
- Issue date Jan 1, 2008
- Nortel Networks Limited
- Richard Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-detector detection of optical signals
- Patent number 7,272,327
- Issue date Sep 18, 2007
- Nortel Networks Limited
- Richard Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization diversity receiver for optical transmission system
- Patent number 7,209,670
- Issue date Apr 24, 2007
- Nortel Networks Limited
- Christopher Fludger
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical waveguide
- Patent number 7,136,558
- Issue date Nov 14, 2006
- Nortel Networks Limited
- Richard E Epworth
- G02 - OPTICS
Information Patent Grant
Coherent optical receiver
- Patent number 7,085,501
- Issue date Aug 1, 2006
- Nortel Networks Limited
- Robin P Rickard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier modules
- Patent number 6,894,829
- Issue date May 17, 2005
- Nortel Networks Limited
- Nigel Edward Jolley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3 Fibre I and Q coupler
- Patent number 6,859,586
- Issue date Feb 22, 2005
- Nortel Networks Limited
- Richard Epworth
- G02 - OPTICS
Information Patent Grant
Optical packet switching
- Patent number 6,626,589
- Issue date Sep 30, 2003
- Nortel Networks Limited
- Richard Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization mode dispersion compensation
- Patent number 6,559,991
- Issue date May 6, 2003
- Nortel Networks Limited
- Kevin Stuart Farley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion managed fiber optic cable and system
- Patent number 6,526,208
- Issue date Feb 25, 2003
- Nortel Networks Limited
- Jonathan King
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiplexed transmission of optical signals
- Patent number 6,522,436
- Issue date Feb 18, 2003
- Nortel Networks Limited
- Kim Byron Roberts
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chirped Bragg grating reflectors and adjustable dispersion apparatu...
- Patent number 6,519,390
- Issue date Feb 11, 2003
- Nortel Networks Limited
- Julian A. Fells
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization mode dispersion compensation
- Patent number 6,515,778
- Issue date Feb 4, 2003
- Nortel Networks Limited
- Richard Edward Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization mode dispersion measurement
- Patent number 6,483,620
- Issue date Nov 19, 2002
- Nortel Networks Limited
- Richard Edward Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multistage optical amplifier with gain flattening
- Patent number 6,483,632
- Issue date Nov 19, 2002
- Nortel Networks Limited
- Nigel Edward Jolley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optically amplified WDM transmission system
- Patent number 6,400,496
- Issue date Jun 4, 2002
- Nortel Networks Limited
- Richard Edward Epworth
- G02 - OPTICS
Information Patent Grant
Polarization mode dispersion emulation
- Patent number 6,381,385
- Issue date Apr 30, 2002
- Nortel Networks Limited
- Daniel A Watley
- G02 - OPTICS
Information Patent Grant
Chromatic dispersion compensation
- Patent number 6,381,388
- Issue date Apr 30, 2002
- Nortel Networks Limited
- Richard Epworth
- G02 - OPTICS
Information Patent Grant
Multiplexed transmission of optical signals
- Patent number 6,313,932
- Issue date Nov 6, 2001
- Nortel Networks Limited
- Kim Byron Roberts
- G02 - OPTICS
Information Patent Grant
Polarization mode dispersion compensation
- Patent number 6,271,952
- Issue date Aug 7, 2001
- Nortel Networks Limited
- Richard Edward Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical multiplexter/demultiplexer
- Patent number 6,144,783
- Issue date Nov 7, 2000
- Nortel Networks Corporation
- Richard Edward Epworth
- G02 - OPTICS
Information Patent Grant
Laser assembly
- Patent number 6,130,899
- Issue date Oct 10, 2000
- Nortel Networks Corporation
- Richard Edward Epworth
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transmission system
- Patent number 5,949,560
- Issue date Sep 7, 1999
- Northern Telecom Limited
- Kim Byron Roberts
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength control of data-modulated lasers and method using same
- Patent number 5,828,681
- Issue date Oct 27, 1998
- Northern Telecom Limited
- Richard Edward Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Etalon arrangement
- Patent number 5,828,689
- Issue date Oct 27, 1998
- Northern Telecom Limited
- Richard Edward Epworth
- G02 - OPTICS
Information Patent Grant
Optical frequency control system and method
- Patent number 5,777,773
- Issue date Jul 7, 1998
- Northern Telecom Limited
- Richard Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loss interferometric power combiner comprising a feedback circuit
- Patent number 5,737,459
- Issue date Apr 7, 1998
- Northern Telecom Limited
- Richard Edward Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dispersion compensation
- Patent number 5,715,265
- Issue date Feb 3, 1998
- Northern Telecom Limited
- Richard Edward Epworth
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Spectral shaping for optical OFDM transmission
- Publication number 20050271387
- Publication date Dec 8, 2005
- Huai Kee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reference phase and amplitude estimation for coherent optical receiver
- Publication number 20050180760
- Publication date Aug 18, 2005
- Ricardo Feced
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical sub-carrier multiplexed transmission
- Publication number 20050074037
- Publication date Apr 7, 2005
- Robin Rickard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical waveguide
- Publication number 20040218879
- Publication date Nov 4, 2004
- Richard E. Epworth
- G02 - OPTICS
Information Patent Application
Multi-detector detection of optical signals
- Publication number 20040218932
- Publication date Nov 4, 2004
- Richard Epworth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Polarization diversity receiver for optical transmission system
- Publication number 20040218933
- Publication date Nov 4, 2004
- Christopher Fludger
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
3 Fibre I & Q coupler
- Publication number 20040008941
- Publication date Jan 15, 2004
- Richard Epworth
- G02 - OPTICS
Information Patent Application
Optical network delay mechanisms
- Publication number 20030035637
- Publication date Feb 20, 2003
- Richard E. Epworth
- G02 - OPTICS
Information Patent Application
Optical amplifier modules
- Publication number 20020196528
- Publication date Dec 26, 2002
- Nigel Edward Jolley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Chirped Bragg grating reflectors and adjustable dispersion apparatu...
- Publication number 20020094164
- Publication date Jul 18, 2002
- Julian A. Fells
- G02 - OPTICS
Information Patent Application
Multiplexed transmission of optical signals
- Publication number 20020036813
- Publication date Mar 28, 2002
- Kim Byron Roberts
- G02 - OPTICS

Richard Epworth

Person

Patents Grantslast 30 patents

Spectral shaping for optical OFDM transmission

Reference phase and amplitude estimation for coherent optical receiver

Coherent receiver

Multi-detector detection of optical signals

Polarization diversity receiver for optical transmission system

Optical waveguide

Coherent optical receiver

Optical amplifier modules

3 Fibre I and Q coupler

Optical packet switching

Polarization mode dispersion compensation

Dispersion managed fiber optic cable and system

Multiplexed transmission of optical signals

Chirped Bragg grating reflectors and adjustable dispersion apparatu...

Polarization mode dispersion compensation

Polarization mode dispersion measurement

Multistage optical amplifier with gain flattening

Optically amplified WDM transmission system

Polarization mode dispersion emulation

Chromatic dispersion compensation

Multiplexed transmission of optical signals

Polarization mode dispersion compensation

Optical multiplexter/demultiplexer

Laser assembly

Optical transmission system

Wavelength control of data-modulated lasers and method using same

Etalon arrangement

Optical frequency control system and method

Loss interferometric power combiner comprising a feedback circuit

Dispersion compensation

Patents Applicationslast 30 patents

Spectral shaping for optical OFDM transmission

Reference phase and amplitude estimation for coherent optical receiver

Optical sub-carrier multiplexed transmission

Optical waveguide

Multi-detector detection of optical signals

Polarization diversity receiver for optical transmission system

3 Fibre I & Q coupler

Optical network delay mechanisms

Optical amplifier modules

Chirped Bragg grating reflectors and adjustable dispersion apparatu...

Multiplexed transmission of optical signals