| 摘要 |
The present invention relates to a stylus pen for a mobile terminal. The stylus pen for a mobile terminal includes: a housing which has a rectangular shape; a pen tip which is placed at the lower end of the housing, is pressed by the pressing action of a user, and comes out back when the pressing action is removed; an end button which is placed at the upper end of the housing, is pressed by the pressing action of the user, and comes out back when the pressing action of the user is removed; a piezo generator which converts the pressing pressure on the pen tip or on the end button into electricity; a power storage unit which stores the electricity generated by the piezo generator and supplies the stored electricity; a pressure level sensing unit which senses the value of the voltage generated by the piezo generator; a writing/erasing mode sensing unit which determines whether the pen tip or the end button is pressed; an RF transmission unit which transmits data to a mobile terminal wirelessly; and a control unit which receives a pressure level and a mode control signal from the pressure level sensing unit and from the writing/erasing mode sensing unit, respectively, and generates a control signal to be transmitted to the mobile terminal through the RF transmission unit. [Reference numerals] (91) Pressure level sensing; (AA,BB) Second power source |
