Patent ID: 6570558
Filing Date: 2003-05-27
Classification: G06F

Abstract:
A coordinates input apparatus, comprising:a vibration transmission plate having a coordinate input effective area in which a vibration can be applied by vibration input means and including a plurality of vibration sensors arranged for detecting the vibrations, the vibration transmission plate deriving a coordinate at which a vibration is applied by the vibration input means, on the basis of a transmission time of the applied vibration; a resin sheet, having an elasticity and an acoustic impedance higher than an impedance of air, for applying a vibration to said vibration transmission plate by contacting said resin sheet with the vibration input means and shutting off an aerial transmittal vibration; and supporting means for supporting the resin sheet at a periphery surrounding the coordinate input effective area, wherein the resin sheet is disposed over an entire area of the coordinate input effective area of the vibration transmission plate by said supporting means and having a gap with a small aerial transmittal impedance between the resin sheet and the vibration transmission plate.