Patent ID: 7893340
Filing Date: 2011-02-22
Classification: G01P,G10H

Abstract:
1. A keyboard system, comprising: a plurality of keys arranged to be actuated by a user; a conversion means for converting a position of a selected key actuated by the user from among the plurality of keys into an electrical signal; a key stroke depth detection means for detecting the position of the selected key using the electrical signal from the conversion means; a key speed acquisition means for acquiring a velocity of the selected key; a calculation means for calculating a first movement state volume using a sum of i) a product of a first coefficient and the detected position of the selected key and ii) a product of a second coefficient and the acquired velocity of the selected key; a key pressing decision means for deciding whether the first movement state volume of the selected key exceeds a first predetermined value, upon the user actuating the selected key by pressing the selected key; and an output means for outputting key pressing information for the selected key to the user, upon the user actuating the selected key and the key pressing decision means deciding that the first movement state volume of the selected key exceeds the first predetermined value.