| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the method for eliminating the deviation between a user's issuing of an instruction to stop turning a page and an actual place where turning a page is stopped, deciding the place having high possibility to be later referred to in an obscure way and also with the user unaware of it to some extent and improving retrieval efficiency when retrieval is performed by turning over pages. SOLUTION: Correction information 160 to turn a page is provided, and when turning a page is stopped, the correction of its stop position is performed by turning a page in a currently turning direction or in a reverse direction based on the information 106. Also, chapter and clause units, etc., are provided as reference frequency and reference count, a reference person and reference data and hour are provided as reference frequency information, at the time of book display, a reference person and a period is retrieved as conditions from the information and a reference marker is created and shown at a corresponding place in accordance with the reference frequency. Furthermore, a parameter of turning a page at a reference marker position is provided and the speed of turning a page at the place is changed.</p> |
