Inventor

AHMADI MASOUD

GB3 patents

Patents

3 patents

US6199036B1Mar 6, 2001

Tone detection using pitch period

NORTEL NETWORKS LTD23 citations85

US7272136B2Sep 18, 2007

Dual tone multi frequency signal detection

NORTEL NETWORKS LTD2 citations52

US7369546B2May 6, 2008

Method and apparatus for fast DTMF detection

NORTEL NETWORKS LTD0 citations43