Inventor
CHAO CHING-CHUAN
TW12 patents
⚠️ This page may combine multiple inventors who share the name “CHAO CHING-CHUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AIPTEK INT INC
9 patentsUS6180894B1Jan 30, 2001
Dual mode digitizer tablet system
AIPTEK INT INC94 citations97
US6999067B2Feb 14, 2006
Electromagnetic induction pen-like device with writing function
AIPTEK INT INC20 citations92
US6787715B2Sep 7, 2004
N-shaped antenna loops of digitizer tablet for reducing antenna switches and the method for locating the cordless pen
AIPTEK INT INC22 citations92
US6727439B2Apr 27, 2004
Pressure sensitive pen
AIPTEK INT INC49 citations90
US6184864B1Feb 6, 2001
Digitizer tablet apparatus with edge area as a macro cell
AIPTEK INT INC17 citations83
US6930670B2Aug 16, 2005
Computer peripheral input system with two input types and method of data communication for the same
AIPTEK INT INC4 citations62
US6849810B2Feb 1, 2005
Antenna loop structure
AIPTEK INT INC4 citations61
US6606068B1Aug 12, 2003
Layout for multi-antenna loops of the electromagnetic-induction system
AIPTEK INT INC6 citations60
US6882339B2Apr 19, 2005
Electromagnetic induction system with single-induction-loop multi-induction-loop
AIPTEK INT INC5 citations56