Inventor
HSU JUNG-CHIH
TW4 patents
Patents
4 patentsUS5986646ANov 16, 1999
Method and apparatus for finding the location of a pointing instrument on a tablet
ACE CAD ENTERPRISE CO LTD28 citations91
US5914710AJun 22, 1999
Cordless pointing instrument for graphics tablet
ACE CAD ENTERPRISE CO LTD37 citations91
US5844548ADec 1, 1998
Stable wireless pointing device for a tablet
ACE CAD ENTERPRISE CO LTD27 citations91
US5428192AJun 27, 1995
Method and apparatus for finding the location of a pointing instrument on a tablet
ACE CAD ENTERPRISE CO LTD20 citations82