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:
Apr. 25, 2000
Filed:
Aug. 29, 1997
Masakazu Isomura, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A data encoding method of a multiple-valued information source in accordance with the present invention includes a prediction setting process which divides a multiple-valued information source into bit planes or level planes, defines either '0' or '1' of the plane as a superior symbol and the other as an inferior symbol, and predicting the superior symbol to continue for n units, and sets the n units as a prediction bit number run, and a prediction result output process which outputs either signal of '0' or '1' as a prediction correct signal as a code word, when prediction is correct for an observed series that includes the prediction bit number input, and moves to the operation of encoding the next string of n bits, or outputs the other of either '0' or '1' as a prediction failed signal as a code word, when the prediction has failed in the encoding operation. A similar prediction setting process and prediction result output process are recursively iterated, setting a newly-decreased prediction bit number as a prediction bit number less than n units when the prediction has failed a specified number of times.