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:
Jul. 17, 1990
Filed:
Dec. 05, 1988
Harvey Waldman, Yardley, PA (US);
Chung H Lu, Plainsboro, NJ (US);
General Electric Company, Schenectady, NY (US);
Abstract
A pre-encoder look-up table (LUT) provides output symbols for a statistical coder in response to signals representing a prediction of a prediction signal in a differential pulse code modulation (DPCM) system. The normal prediction signal is used as one address to the LUT and the prediction of that normal signal is used as a second address. The average probability distribution of the signals is determined to construct the LUTs wherein the output symbols are assigned values corresponding to different average probabilities of occurrence of the signal to be processed to thereby reduce the entropy further without adding overhead control symbols to the transmission system.