| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a mechanism allowing a user to stably perform handwriting input to a document.SOLUTION: A portable input device comprises: state determination means for determining a state of imaging means on the basis of whether or not a document is shown in an obtained image obtained by the imaging means; display means for, when the state determination means determines a first overlapping state in which the document is overlapped on the imaging means, displaying document information indicating the document; and reception means for receiving drawing input by a user to the document information displayed on the display means.</p> |
