EP1864282A1

5G,4G,3G

Title

SYSTEMS METHODS AND APPARATUS FOR WIDEBAND SPEECH CODING

Application Number:

EP20060740358

Publication Date:

12-12-2007

Current Assignee:

QUALCOMM INC

Family ID:

36588741

Application Date:

03-04-2006

Declaring Company:

QUALCOMM INC

Publication Country:

US

Priority Date:

01-04-2005

View on Espacenet goto-link

Title

SYSTEMS METHODS AND APPARATUS FOR WIDEBAND SPEECH CODING

Application Number:

EP20060740358

Family ID:

36588741

Publication Country:

US

Publication Date:

12-12-2007

Application Date:

03-04-2006

Priority Date:

01-04-2005

Current Assignee:

QUALCOMM INC

Declaring Company:

QUALCOMM INC

View on Espacenet goto-link

Abstract  Abstract

A wideband speech encoder according to one embodiment includes a narrowband encoder and a highband encoder. The narrowband encoder is configured to encode a narrowband portion of a wideband speech signal into a set of filter parameters and a corresponding encoded excitation signal. The highband encoder is configured to encode according to a highband excitation signal a highband portion of the wideband speech signal into a set of filter parameters. The highband encoder is configured to generate the highband excitation signal by applying a nonlinear function to a signal based on the encoded narrowband excitation signal to generate a spectrally extended signal.

A wideband speech encoder according to one embodiment includes a narrowband encoder and a highband encoder. The narrowband encoder is configured to encode a narrowband portion of a wideband speech signal into a set of filter parameters and a corresponding encoded excitation signal. The highband encoder is configured to encode according to a highband excitation signal a highband portion of the wideband speech signal into a set of filter parameters. The highband encoder is configured to generate the highband excitation signal by applying a nonlinear function to a signal based on the encoded narrowband excitation signal to generate a spectrally extended signal.

Note:

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

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