Low complexity compression of short messages

Details Low complexity compression of short messages Low complexity compression of short messages

2011-08-16

2011-08-16

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

C341S051000

Reexamination Certificate

active

07999704

ABSTRACT:
A method for data communication, where the data compression and decompression is performed by use of a specific hash table, by which data compression a symbol for each data segment is generated, which symbols are transmitted to the receiver where the symbols are decompressed by use of the specific hash table is modified by the specific hash table being performed as a hash table array, which hash table array generates symbols having at least a hash count and a parity check, in which hash table array the parity check comprises generating of a data string, which data string is compared with a parity stored in the hash table, where if both parities are the same, the data model returns the count in the hash table element for transmission, where a zero count is returned indicating that the data string is not valid in the hash table an no transmission is performed.

REFERENCES:
patent: 5506580 (1996-04-01), Whiting et al.
patent: 2004/0246966 (2004-12-01), Wu et al.
Alistair Moffat, Implementing the PPM Data Compression Scheme, IEEE Transactions on Communications, IEEE Service Center, Piscataway, NJ, US, vol. 38, No. 1 1, Nov. 1990; pp. 1917-1921, XP 000938682; ISSN: 0090-6778; The Whole Document.
Stephan Rein and Clemens Gühmann, Arithmetic Coding—A Short Tutorial and Free Source Code, Internet Article, [Online], Nov. 2005, XP002432479, Retrieved From the Internet: URL:http://www.mdt.tu-berlin.de/Members/rein/files/arithmeticcoding.pdf; [retrieved on May 7, 2007]; The Whole Document.

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