Patent · US Active

Method and device for quantizing an information signal

US7464027B2 · kind B2 · utility

6Cited by

4References

11Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Gerald Schuller · Erfurt, DE
Stefan Wabnik · Ilmenau, DE
Jens Hirschfeld · Heringen, DE
Wolfgang Fiesel · Schwanstetten, DE

Key dates

Filing date	Jul 27, 2006
Grant date	Dec 9, 2008
Priority date	—
Expiry date	Sep 1, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/265
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Quantizing an information signal of a sequence of information values includes frequency-selective filtering the sequence of information values to obtain a sequence of filtered information values and quantizing the filtered information values to obtain a sequence of quantized information values by means of a quantizing step function which maps the filtered information values to the quantized information values and the course of which is steeper below a threshold information value than above the threshold information value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.