EP1719116A1

Title

SWITCHING FROM ACELP INTO TCX CODING MODE

Application Number:

EP20050706494

Publication Date:

08-11-2006

Current Assignee:

Family ID:

Application Date:

18-02-2005

Declaring Company:

Publication Country:

US

Priority Date:

18-02-2004

Title

SWITCHING FROM ACELP INTO TCX CODING MODE

Application Number:

EP20050706494

Family ID:

Publication Country:

US

Publication Date:

08-11-2006

Application Date:

18-02-2005

Priority Date:

18-02-2004

Current Assignee:

Declaring Company:

Abstract  Abstract

An aspect of the present invention relates to a method for low-frequency emphasizing the spectrum of a sound signal transformed in a frequency domain and comprising transform coefficients grouped in a number of blocks in which a maximum energy for one block is calculated and a position index of the block with maximum energy is determined a factor is calculated for each block having a position index smaller than the position index of the block with maximum energy and for each block a gain is determined from the factor and is applied to the transform coefficients of the block.

An aspect of the present invention relates to a method for low-frequency emphasizing the spectrum of a sound signal transformed in a frequency domain and comprising transform coefficients grouped in a number of blocks in which a maximum energy for one block is calculated and a position index of the block with maximum energy is determined a factor is calculated for each block having a position index smaller than the position index of the block with maximum energy and for each block a gain is determined from the factor and is applied to the transform coefficients of the block.

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.