RU2007140383A

5G,4G,3G

Title

Not Available

Application Number:

RU20070140383

Publication Date:

10-05-2009

Current Assignee:

Family ID:

Application Date:

03-04-2006

Declaring Company:

Publication Country:

US

Priority Date:

01-04-2005

Title

Not Available

Application Number:

RU20070140383

Family ID:

Publication Country:

US

Publication Date:

10-05-2009

Application Date:

03-04-2006

Priority Date:

01-04-2005

Current Assignee:

Declaring Company:

Abstract  Abstract

1. A method of encoding a portion of a speech signal of a high frequency range, having a part in a low frequency range and a part in a high frequency range, comprising the steps of! calculate the set of filter parameters characterizing the spectral envelope of the part in the high frequency range,! calculate the spectrally expanded signal by expanding the spectrum of the signal obtained from the part in the low frequency range,! generating a synthesized highband signal according to (A) a highband excitation signal based on a spectrally expanded signal, and (B) a combination of filter parameters, and! calculating the gain envelope based on the relationship between the part in the high frequency range and the signal based on the part in the low frequency range. ! 2. The method according to claim 1, in which, at the stage of calculating the spectrally expanded signal, the spectrum of the signal obtained from the part in the low frequency range is expanded by applying a nonlinear function to the signal. ! 3. The method according to claim 1, wherein in the step of calculating the gain envelope, they rely on the relationship between the energy of the part in the high frequency range and the energy of the signal based on the part in the high frequency range. ! 4. The method according to p. 3, in which, at the stage of calculating the gain envelope, they rely on the ratio between the energy of the part in the high frequency range and the energy of the synthesized signal in the high frequency range. ! 5. A method for processing speech, comprising the steps in which! generate a highband excitation signal based on a lowband excitation signal,! generate a synthesized high frequency 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.