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:
Oct. 28, 1980
Filed:
Dec. 22, 1978
Ludwig D Eggermont, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
Digital filter for filtering nonuniformly quantized pulse code-modulated signals formed by a sequence of code words each comprising a segment number s(i) and a mantissa number m(i). This digital filter comprises a modifying device to which the mantissa numbers m(i) are applied for generating modified mantissa numbers E(i). The numbers E(i) are each multiplied by the magnitude of a filter coefficient, for generating first product numbers z.sub.1 (i). Thereafter these numbers z.sub.1 (i) are each multiplied by a number 2.sup.B(i), B(i) being either equal to s(i) or equal to s(i)-1, so that second product numbers z.sub.2 (i) are obtained which are applied to an accumulator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile