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WDM network with control wavelength
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Patent number 5,864,414
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Issue date Jan 26, 1999
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British Telecommunications public limited company
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Peter E. Barnsley
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical clock extraction
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Patent number 5,602,862
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Issue date Feb 11, 1997
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British Telecommunications public limited company
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Peter E. Barnsley
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical processing system
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Patent number 5,488,501
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Issue date Jan 30, 1996
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British Telecommunications p.l.c.
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Peter E. Barnsley
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical clock recovery
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Patent number 5,444,560
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Issue date Aug 22, 1995
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British Telecommunications public limited company
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Peter E. Barnsley
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H04 - ELECTRIC COMMUNICATION TECHNIQUE