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Optical communication system
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Patent number 7,471,903
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Issue date Dec 30, 2008
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Nortel Networks Limited
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Robert Friskney
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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DQPSK receiver phase control
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Patent number 7,389,055
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Issue date Jun 17, 2008
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Nortel Networks Limited
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Robin Rickard
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Coherent receiver
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Patent number 7,315,584
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Issue date Jan 1, 2008
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Nortel Networks Limited
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Richard Epworth
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Coherent optical receiver
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Patent number 7,085,501
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Issue date Aug 1, 2006
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Nortel Networks Limited
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Robin P Rickard
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Power line communications
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Patent number 6,785,532
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Issue date Aug 31, 2004
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Nortel Networks Limited
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Robin Paul Rickard
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Power line communications
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Patent number 6,317,031
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Issue date Nov 13, 2001
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Nortel Networks Limited
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Robin Paul Rickard
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Beamforming circuitry
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Patent number 6,011,513
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Issue date Jan 4, 2000
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Northern Telecom Limited
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Fiona Maihri Wilson
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H01 - BASIC ELECTRIC ELEMENTS
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Broadband interference reduction
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Patent number 5,818,517
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Issue date Oct 6, 1998
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Northern Telecom Limited
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John Edward Hudson
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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