Patent ID: 6369802
Filing Date: 2002-04-09
Classification: G06F,G06K

Abstract:
A handwritten data input device comprising:an electromagnetic induction-type tablet on which a form sheet is placed, and which detects coordinates at which data is written into the form sheet; format defining means for defining in said tablet a data writing area that corresponds to a handwriting data entry box of the form sheet, when the form sheet on which the handwriting data entry box is formed is placed on said tablet; a detector that detects when a user is about to write data into the form sheet placed on the tablet by sensing that an input pen is approaching said tablet; determination means for determining whether said format defining means has defined the data writing area when the detector detects that the user is about to write data into the form sheet on the tablet; and indicating means for indicating that a data write process will be invalid when said determination means determines that said format defining means has not yet defined the data writing area.