Exclusive or cross-coupled framing codes for self-clocking glyphs

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United States of America Patent

PATENT NO 6340118
SERIAL NO

09464934

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Abstract

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A method is provided for encoding two-dimensional frame codes comprising the steps of establishing first and second line bit sequences, determining an exclusive OR (XOR) logic value of the first and second code lines to obtain a two-dimensional matrix of XOR logic values and determining the two-dimensional frame codes using the matrix of XOR logic values.

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Patent Owner(s)

Patent OwnerAddress
XEROX CORPORATION201 MERRITT 7 NORWALK CT 06851-1056

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hecht, David L Palo Alto, CA 58 4050

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