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. 16, 2006
Filed:
Dec. 18, 2002
Gaël Champion, Paris, FR;
Gaël Champion, Paris, FR;
EADS Telecom, Montigny le Bretonneux, FR;
Abstract
The invention concerns a method and a device for converting an input digital value quantized in accordance with a first quantization factor and encoded on at most n1 bits, into an output digital value quantized in accordance with a second quantization factor and encoded on at most n2 bits. The method comprises the steps of: multiplying the input digital value by an integer B, encoded on at most β bits, so as to generate an intermediate digital value; and dividing, in fixed point, the first intermediate digital value by the number 2, where α is an integer not greater than n1+β, generating the output digital value. The number B/2is substantially equal to the ratio of the second quantization factor over the first quantization factor. Additionally, the divider means comprise a Sigma-Delta modulator.