CA2290037A1

5G,4G,3G,2G

Title

GAIN-SMOOTHING AMPLIFIER DEVICE AND METHOD IN CODECS FOR WIDEBAND SPEECH AND AUDIO SIGNALS

Application Number:

CA19992290037

Publication Date:

18-05-2001

Current Assignee:

Family ID:

Application Date:

18-11-1999

Declaring Company:

Publication Country:

US

Priority Date:

18-11-1999

Title

GAIN-SMOOTHING AMPLIFIER DEVICE AND METHOD IN CODECS FOR WIDEBAND SPEECH AND AUDIO SIGNALS

Application Number:

CA19992290037

Family ID:

Publication Country:

US

Publication Date:

18-05-2001

Application Date:

18-11-1999

Priority Date:

18-11-1999

Current Assignee:

Declaring Company:

Abstract  Abstract

A gain smoothing amplifier device and method for modyfing the amplitude of an innovative codevector in relation to a background noise signal present in a previously sampled wideband signal. The gain smoothing amplifier device comprises a gain smoothing calculator for calculating a smoothed gain in response to a set of linear prediction filter coefficients a factor representative of voicing in the sampled wideband signal a factor representative of stability of the set of linear prediction coefficients and an innovative codebook gain. The gain smoothing amplifier device also comprises an amplifier for amplifying the innovative codevector in relation to the smoothed gain to thereby produce a gain smoothed innovative codevector. The gain smoothing amplifier device improves the perceived synthesized signal when background noise is present in the sampled wideband signal.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.