| 发明名称 |
PERSONAL DIGITAL ASSISTANCE |
| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a personal digital assistance equipped with a trackball that can be operated without the spherical body moving in the direction of the bottom face at the time of the operation in two axial directions. <P>SOLUTION: The inside of the trackball part 9 comprises a spherical body 9 including a magnetic material provided inside a housing 10 in a freely rotatable manner; a magnet 17 that is disposed around the spherical body 9 and supports the spherical body; an optical sensor 19 that is mounted on a printed board 18 fixed parallel to the principal surface, and detects the rotation in two axial directions of the spherical body 9; and a switch 20 that operates when the spherical body 9 is pressed down. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
| 申请公布号 |
JP2007310542(A) |
申请公布日期 |
2007.11.29 |
| 申请号 |
JP20060137559 |
申请日期 |
2006.05.17 |
| 申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
OTSUKA MASAAKI;SAWADA JUN;IWASAKI SHIKI;NAGAKI YOSUKE |
| 分类号 |
G06F3/033;H04M1/02 |
主分类号 |
G06F3/033 |
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