DATABASE RETRIEVAL CONDITION INPUT MTHOD AND DATABASE RETRIEVAL TERMINAL EQUIPMENT

摘要

PURPOSE: To improve database retrieval efficiency by utilizing the character/ graphic input by pen input and graphic display and specifying the range of retrieval conditions by a Venn diagram. ;CONSTITUTION: The sequence of position coordinates written and inputted through a position input device 1 is supplied through an equipment main body 2 to a display device 3. Then, corresponding to the sequence of the position coordinates, the same position coordinates of the display device 3 are display- driven. By the display control, a pattern written and inputted on a tablet surface is simultaneously inputted as the track of the writing and the character or graphic information is inputted like plotting a line on a sheet surface by using a pen. In this case, key word character string information is inputted, Venn diagram information for indicating the crossing of a key word range is plotted by the position input device 1 around a key word displayed on the display device 3, the retrieval conditions are specified by specifying the range to be a target on the diagram and information to be a target is obtained from a database.;COPYRIGHT: (C)1996,JPO