Abstract: This invention is directed to the provision of a data input device that is operated by a novel method of inputting the force applied on a force sensor as polar coordinate data and subjecting the data to input processing which utilizes the r value and the ? value. A portable telephone 1 detects the force applied on a force sensor 51 of an input unit 50 as rectangular coordinate data and converts the detected rectangular coordinate data into polar coordinate data. Then, with reference to an allocating table that has recorded characters and ranges of ? values to which the individual characters are allocated, the character allocated to the obtained ? value is selected. Then, when the r value larger than a prescribed threshold is input, the entry of the selected parameter is determined.

Abstract: A data input device that enables the user to execute a scrolling operation rapidly and infallibly without enduring any operational burden is provided. The data input device comprises a force detecting unit for detecting an applied force as a rectangular coordinate data, a converting unit for converting the rectangular coordinate data detected by the force detecting unit into a polar coordinate data, a scrolling amount deciding unit for deciding the scrolling amount of an element displayed in a display based on the r value of the polar coordinate data converted by the converting unit, and a scrolling direction deciding unit for deciding the scrolling direction of the element based on the change in the ? value of the polar coordinate data converted by the converting unit.

Abstract: The invention provides an elastic body that reduces the cost of manufacture, has high deformation stability and excellent restoration capability, and is easy to be formed, a force sensor and an acceleration sensor equipped with said elastic body. The elastic body includes a first elastic part with electroconductivity and a second elastic part made of a tabular member which is harder than the first elastic part and is insertion-formed into the first elastic part.

Abstract: A force sensor converts a force into capacitance and makes it possible to generate a plurality of outputs with different output characteristics, force detection system, and a digital force detection program for it. The force sensor 20 has a displacement unit 24 for generating a displacement when a force is applied; a single or a plurality of first sensor units (36, 36A, 36B, 36C, and 36D) for generating a first output C1 from said displacement of the displacement unit; and a second sensor unit 44, which is annexed to the first sensor unit, for generating a second output C2 from the displacement of said displacement unit. The force detection system enhances the output accuracy by means of the first and second outputs of such a force sensor. The force detection program is used in the force detection system for executing the output process.