Efficient encoding and decoding of mixed data strings in...

Details Efficient encoding and decoding of mixed data strings in... Efficient encoding and decoding of mixed data strings in...

2008-10-20

2011-11-22

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from alphanumeric code formats

C708S683000, C348S086000, C380S059000, C713S179000

Reexamination Certificate

active

08063800

ABSTRACT:
An encoding method comprises generating a character map of an alphanumeric character string, identifying runs of like character type symbols in sequential positions, and removing the runs of character type symbols from the character map. The center for the center infix run is determined, and the characters of each character type are encoded into binary encoded substrings. A decoding method comprises parsing the one or more run fields in the alphanumeric header to determine a number of characters of each type of a plurality of character types represented in the binary encoded string, generating a character map having a string of character type symbols representing the binary encoded string, including determining a reduced character map, centering the character type symbols for a center infix run about the center of the reduced character map, completing a final character map, and decoding each binary encoded string.

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PCT International Search Report Dated Jan. 12, 2009.

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