Patent · US Active

Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal

US9997162B2 · kind B2 · utility

1Cited by

10References

16Claims

0Family size

Assignee

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

Inventors

Frederik Nagel · Nuremberg, DE
Stephan Wilde · Wendelstein, DE

Key dates

Filing date	Mar 17, 2015
Grant date	Jun 12, 2018
Priority date	—
Expiry date	Aug 9, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/0208
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An apparatus for generating a bandwidth extended signal from a bandwidth limited audio signal, the bandwidth limited audio signal The patch generator is configured to perform a harmonic patching algorithm to obtain the patched signal. The signal manipulator is configured for manipulating a signal before patching or the patched signal. The timely preceding bandwidth limited time block timely precedes the current bandwidth limited time block in the plurality of consecutive bandwidth limited time blocks of the bandwidth limited audio signal. The combiner is configured for combining the bandwidth limited audio signal having the core frequency band and the manipulated patched signal having the upper frequency band to obtain the bandwidth extended signal.

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