The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 1997
Filed:
Aug. 05, 1994
Alan D Clark, Roswell, GA (US);
Hayes Microcomputer Products, Inc., Norcross, GA (US);
Abstract
A real-time method for improving data compression. The correlation between data characters being provided a modem (10) is determined. Two measures are used to determine the correlation between data characters: the shape of tree(s) (6) in encoding table (16) and the compression ratio (96). Once the correlation between data characters is determined using the two measures, the size of the encoding table (16) can be changed. If the data characters are not correlated, meaning the data is random or pseudo-random, the size of the encoding table is decreased. If the data characters are highly correlated, changing the size of the encoding table reduces time spent attempting to compress incompressible data and increases data compression for compressible data.