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Video coding
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Patent number 6,002,440
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Issue date Dec 14, 1999
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British Telcommunications public limited company
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David Dalby
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Signal coding
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Patent number 5,008,748
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Issue date Apr 16, 1991
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British Telecommunications Public Limited Company
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Michael D. Carr
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Signal coding
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Patent number 5,008,747
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Issue date Apr 16, 1991
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British Telecommunications Public Limited Company
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Michael D. Carr
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G06 - COMPUTING CALCULATING COUNTING
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Pattern processing
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Patent number 4,930,013
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Issue date May 29, 1990
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British Telecommunications public limited company
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Anthony R. Leaning
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G06 - COMPUTING CALCULATING COUNTING