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:
Mar. 09, 1982
Filed:
Mar. 17, 1980
Denis F Cointot, Paris, FR;
Societe Anonyme de Telecommunications, Paris, FR;
Abstract
A predictor stage for a digital processing system for sampled and PCM coded signals in the form of a sequence of samples x.sub.n, having first transmission means and first reception means for forming a predicted sample x.sub.pn. Second transmission means are also provided for subtracting said sample x.sub.pn predicted from said sample x.sub.n coming in at the transmission side, and deriving therefrom a difference sample d.sub.n representing the prediction error. The first transmission means has a recursive structure, with each predicted sample x.sub.pn being derived from the samples d.sub.n, d.sub.n-1, d.sub.n-2 . . . etc. previously obtained at the output of the second transmission means. The first reception means has a transverse structure, with each sample x.sub.pn being derived at the reception side from the difference samples d.sub.n, d.sub.n-1 . . . , previously received. The samples x.sub.pn predicted at the reception side are added to the difference samples within the second reception means.