Inventor
ASHLEY JAMES PATRICK
US14 patents
Patents
14 patentsUS6453291B1Sep 17, 2002
Apparatus and method for voice activity detection in a communication system
MOTOROLA INC112 citations97
US6366880B1Apr 2, 2002
Method and apparatus for suppressing acoustic background noise in a communication system by equaliztion of pre-and post-comb-filtered subband spectral energies
MOTOROLA INC69 citations96
US5898696AApr 27, 1999
Method and system for controlling an encoding rate in a variable rate communication system
MOTOROLA INC57 citations96
US6662154B2Dec 9, 2003
Method and system for information signal coding using combinatorial and huffman codes
MOTOROLA INC77 citations94
US6236960B1May 22, 2001
Factorial packing method and apparatus for information coding
MOTOROLA INC132 citations94
US6091969AJul 18, 2000
Method and apparatus for inband signaling control of vocoder bypass
MOTOROLA INC70 citations94
US6070089AMay 30, 2000
Method and apparatus for control of vocoder bypass utilizing inband signaling
MOTOROLA INC78 citations94
US6188979B1Feb 13, 2001
Method and apparatus for estimating the fundamental frequency of a signal
MOTOROLA INC47 citations92
US6134232AOct 17, 2000
Method and apparatus for providing a multi-party speech connection for use in a wireless communication system
MOTOROLA INC19 citations92
US6049537AApr 11, 2000
Method and system for controlling speech encoding in a communication system
MOTOROLA INC42 citations92
US6415252B1Jul 2, 2002
Method and apparatus for coding and decoding speech
MOTOROLA INC49 citations91
US6141638AOct 31, 2000
Method and apparatus for coding an information signal
MOTOROLA INC46 citations91
US7283956B2Oct 16, 2007
Noise suppression
MOTOROLA INC45 citations86
US7505764B2Mar 17, 2009
Method for retransmitting a speech packet
MOTOROLA INC4 citations62