Frame error concealment

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9478222
APP PUB NO 20150379998A1
SERIAL NO

14767499

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Abstract

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A frame error concealment method based on frames including transform coefficient vectors including the following steps: It tracks (S11) sign changes between corresponding transform coefficients of predetermined sub-vectors of consecutive good stationary frames. It accumulates (S12) the number of sign changes in corresponding sub-vectors of a predetermined number of consecutive good stationary frames. It reconstructs (S13) an erroneous frame with the latest good stationary frame, but with reversed signs of transform coefficients in sub-vectors having an accumulated number of sign changes that exceeds a predetermined threshold.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)STOCKHOLM12205

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grancharov, Volodya Solna, SE 46 144
Näslund, Sebastian Solna, SE 12 10
Svedberg, Jonas Luleå, SE 21 265

Cited Art Landscape

Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (1)
* 2009/0192,803 SYSTEMS, METHODS, AND APPARATUS FOR CONTEXT REPLACEMENT BY AUDIO LEVEL 18 2008
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (1)
* 2015/0379,998 FRAME ERROR CONCEALMENT 2 2013
 
MULTIMEDIA PATENT TRUST C/O (1)
* 5699485 Pitch delay modification during frame erasures 111 1995
 
VOICEAGE CORPORATION (2)
* 2005/0154,584 Method and device for efficient frame erasure concealment in linear predictive based speech codecs 80 2004
* 2011/0125,505 Method and Device for Efficient Frame Erasure Concealment in Speech Codecs 28 2006
* Cited By Examiner

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