Inventor
CHANG TE-CHIH
TW14 patents
⚠️ This page may combine multiple inventors who share the name “CHANG TE-CHIH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MUSTEK SYSTEMS INC
8 patentsUS6611292B1Aug 26, 2003
Focus controlling method and system for an image capturing system
MUSTEK SYSTEMS INC13 citations83
US6603514B1Aug 5, 2003
Focus controlling method and system by evaluating a resolution index
MUSTEK SYSTEMS INC19 citations83
US5969845AOct 19, 1999
Device and method for determining resolution of a multiple resolution scanner
MUSTEK SYSTEMS INC19 citations81
US6734998B2May 11, 2004
Method for determining scan line misalignments
MUSTEK SYSTEMS INC11 citations71
US6414461B1Jul 2, 2002
Scanner that controls stepping motor torque
MUSTEK SYSTEMS INC3 citations61
US6287203B1Sep 11, 2001
Method and structure for coupling a step motor shaft
MUSTEK SYSTEMS INC5 citations60
US6842269B2Jan 11, 2005
Image reading device by interfering light path to trigger scanning processes
MUSTEK SYSTEMS INC4 citations55
US5995231ANov 30, 1999
Method for calibrating a light traveling distance in a scanning module
MUSTEK SYSTEMS INC0 citations50