Patent · US Active

Coding and decoding scale factor information

US7539612B2 · kind B2 · utility

66Cited by

56References

26Claims

0Family size

Assignee

Microsoft Corporation · US

Inventors

Naveen Thumpudi · Redmond, US
Wei-Ge Chen · Beijing, CN
Chao He · Tayport, GB

Key dates

Filing date	Jul 15, 2005
Grant date	May 26, 2009
Priority date	—
Expiry date	Apr 18, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/06
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Techniques and tools for representing, coding, and decoding scale factor information are described herein. For example, during encoding of scale factors, an encoder uses one or more of flexible scale factor resolution selection, spatial prediction of scale factors, flexible prediction of scale factors, smoothing of noisy scale factor amplitudes, reordering of scale factor prediction residuals, and prediction of scale factor prediction residuals. Or, during decoding, a decoder uses one or more of flexible scale factor resolution selection, spatial prediction of scale factors, flexible prediction of scale factors, reordering of scale factor prediction residuals, and prediction of scale factor prediction residuals.

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