US2011125505A1

5G,4G,3G

Title

METHOD AND DEVICE FOR EFFICIENT FRAME ERASURE CONCEALMENT IN SPEECH CODECS

Application Number:

US20060095224

Publication Date:

26-05-2011

Current Assignee:

Family ID:

Application Date:

28-12-2006

Declaring Company:

Publication Country:

US

Priority Date:

28-12-2005

Title

METHOD AND DEVICE FOR EFFICIENT FRAME ERASURE CONCEALMENT IN SPEECH CODECS

Application Number:

US20060095224

Family ID:

Publication Country:

US

Publication Date:

26-05-2011

Application Date:

28-12-2006

Priority Date:

28-12-2005

Current Assignee:

Declaring Company:

Abstract  Abstract

A method and device for concealing frame erasures caused by frames of an encoded sound signal erased during transmission from an encoder to a decoder and for recovery of the decoder after frame erasures comprise in the encoder determining concealment/recovery parameters including at least phase information related to frames of the encoded sound signal. The concealment/recovery parameters determined in the encoder are transmitted to the decoder and in the decoder frame erasure concealment is conducted in response to the received concealment/recovery parameters. The frame erasure concealment comprises resynchronizing in response to the received phase information the erasure-concealed frames with corresponding frames of the sound signal encoded at the encoder. When no concealment/recovery parameters are transmitted to the decoder a phase information of each frame of the encoded sound signal that has been erased during transmission from the encoder to the decoder is estimated in the decoder. Also frame erasure concealment is conducted in the decoder in response to the estimated phase information wherein the frame erasure concealment comprises resynchronizing in response to the estimated phase information each erasure-concealed frame with a corresponding frame of the sound signal encoded at the encoder.

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.