Inventor

FANG YONGHUA

CA4 patents

⚠️ This page may combine multiple inventors who share the name “FANG YONGHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITEL NETWORKS CORP

3 patents

US7215762B2May 8, 2007

Method of selecting impedance setting for loop start trunk line

MITEL NETWORKS CORP5 citations60

US7738653B2Jun 15, 2010

Method for selecting impedance setting for loop start trunk line

MITEL NETWORKS CORP1 citations49

US7693276B2Apr 6, 2010

Method of measuring distortion and determining residue-echo threshold in loop start trunk circuits

MITEL NETWORKS CORP0 citations38

SCHULZ DIETER

1 patent

US8654967B2Feb 18, 2014

System for conditioning echo response of loop start trunk line

SCHULZ DIETER2 citations55