Apparatus and method for audio frame loss recovery

US9053699B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9053699-B2
Application numberUS-201213545277-A
CountryUS
Kind codeB2
Filing dateJul 10, 2012
Priority dateJul 10, 2012
Publication dateJun 9, 2015
Grant dateJun 9, 2015

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Abstract

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A method and apparatus provide for audio frame recovery by identifying a sequence of lost frames of coded audio data as being lost or corrupted; identifying a first frame of coded audio data which immediately preceded the sequence of lost frames, as having been encoded using a time domain coding method; identifying a second frame of coded audio data, which immediately followed the sequence of lost frames of coded audio data, as having been encoded using a transform domain coding method; obtaining a pitch delay; generating a second decoded audio portion of the second frame based on the second frame; generating a first decoded audio portion of the second frame based on the pitch delay and decoded audio samples; and generating a decoded audio output of the second frame based on a sequential combination of the first and second decoded audio portions.

First claim

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What is claimed is: 1. A method for processing a sequence of frames of coded audio data comprising the steps of: identifying a sequence of lost frames of coded audio data as being lost or corrupted, wherein the sequence of lost frames comprises one or more lost frames; identifying a first frame of coded audio data, which immediately preceded the sequence of lost frames of coded audio data, as having been encoded using a time domain coding method; identifying a second frame of…

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What does patent US9053699B2 cover?
A method and apparatus provide for audio frame recovery by identifying a sequence of lost frames of coded audio data as being lost or corrupted; identifying a first frame of coded audio data which immediately preceded the sequence of lost frames, as having been encoded using a time domain coding method; identifying a second frame of coded audio data, which immediately followed the sequence of l…
Who is the assignee on this patent?
Mittal Udar, Ashley James P, Google Technology Holdings LLC
What technology area does this patent fall under?
Primary CPC classification G10L19/005. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jun 09 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).