Coded data generation or conversion – Digital code to digital code converters – To or from code based on probability
Reexamination Certificate
2007-09-04
2007-09-04
Barnie, Rexford (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from code based on probability
C707S793000
Reexamination Certificate
active
10821524
ABSTRACT:
A method for encoding and decoding a sequence is provided. The method comprises searching a set of candidate trees varying in size for a tree T having a plurality of states. Tree T provides a structure that relatively minimizes code length of the sequence from among all the candidate trees. The method further comprises encoding data conditioned on the tree T, which may be a generalized context tree (GCT), using a sequential probability assignment conditioned on the states of the tree T. This encoding may use finite state machine (FSM) closure of the tree. Also provided are methods for decoding an encoded binary string when the encoded string includes a full tree or generalized context tree, as well as decoding an encoded string using incomplete FSM closure, incremental FSM, and suffix tree construction concepts.
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patent: 7028042 (2006-04-01), Rissanen
Alvaro Martin, et al., “Linear Time Universal Coding and Time Reversal of Tree Sources via FSM Closure,” HPL-2003-87, Apr. 2003.
R. Giegerich and S. Kurtz, “From Ukkonen to McCreight and Weiner: A unifying view to linear-time suffix tree construction,” Algorithmica, vol. 19, pp. 331-353, Nov. 1997.
Martin Alvaro
Seroussi Gadiel
Weinberger Marcelo
Barnie Rexford
Hewlett--Packard Development Company, L.P.
Lauture Joseph
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