Patent · US Expired

Audio signal compression

US6819275B2 · kind B2 · utility

8Cited by
9References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 8, 2002
Grant dateNov 16, 2004
Priority date
Expiry dateJun 3, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03M3/49
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

Estimating a compression gain obtainable in compressing a given audio signal, comprising extracting a signal power in a selected frequency band of the given audio signal, and obtaining an estimation of the compression gain by correlation with the extracted signal power.

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