On-the-fly data re-compression

Coded data generation or conversion – Digital code to digital code converters – To or from bit count codes

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341 65, 341106, H03M 740

Patent

active

061219037

ABSTRACT:
Previously compressed data is re-compressed with a better algorithm. A data analyzer analyses the compressed data to determine whether the data has been compressed with a supported compression format such as GIF, JPG or PNG. A data decompressor decompresses the data, then a data compressor re-compresses the data using the superior compression algorithm. When the data is to be reused, a data decompressor decompresses the data and a data compressor recompresses the data using the original compression algorithm. The invention may be implemented over a path in a data network. Compressed data that is to be sent over path is intercepted and re-compressed with the superior algorithm before being sent over the path. On the other end of the path, the data is converted back to its original compression format.

REFERENCES:
patent: 4701745 (1987-10-01), Waterworth
patent: 5016009 (1991-05-01), Whiting et al.
patent: 5126739 (1992-06-01), Whiting et al.
patent: 5532694 (1996-07-01), Mayers et al.
patent: 5841376 (1998-11-01), Hayashi
patent: 5945933 (1999-08-01), Kalkstein
Ziv J. Lempel "A: A universal algorithm for sequential data compression", IEEE Transactions on Information Theory, vol. IT-23, (1977) pp. 337-343.
Brent R.P.: A linear algorithm for data compression, The Australian Journal, vol. 19, (1987) pp. 64-68.
Ziv J. Lempel "A: Compression of individual sequences via variable rate coding, IEEE Transactions on Information Theory", vol. IT-24, (1978) pp. 530-536.
William R.N., "An extremely fast Ziv-Lempel data compression algorithm", Proceedings Data Compression Conference DCC'91, Snowbird, Utah , Apr. 8-11, 1991,IEEE Computer Society Press, Los Alamitos , CA, pp. 362-371.
Huffman D.: A method for the construction of minimum redundancy codes, Proceedings IRE, vol. 40, (1952) pp. 1098-1101.
H.S. Heaps,"Information retrieval: Computational and theoretical aspects", Academic Press, New York (1978).
Shell D.L., "A High Speed Storing Procedure, Communications of the ACM", vol. 2, (1959) pp. 30-32.
Cormen T.H. , Leiserson C.E. , Rivest R.L. , "Introduction to Algorithms", The MIT Press, Cambridge, MA (1990), ch. 17.

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