| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a command input device for a portable terminal, capable of freely calling various functions mounted on the portable terminal by various pieces of information detected by an acceleration sensor equipped in the portable terminal while hardly causing malfunction during carrying. <P>SOLUTION: In this device, operation of a command receiving means 23 is permitted only when a predetermined start signal composed of a combination of a vibration signal corresponding tapping operation and an attitude change signal of a casing 11 is detected by the acceleration sensor 19, whereby improper operation of the command receiving means 23 is prevented to prevent the command receiving means 23 from falsely recognizing various disturbances as the function selection command. The expandability of the function selection command is enhanced by forming the function selection command by combining the vibration signal with the attitude change signal, so that various functions mounted on a cellular phone 1 can be freely called. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
