发明名称 |
SYSTEM FOR DISPOSING A PROXIMITY SENSITIVE TOUCHPAD BEHIND A MOBILE PHONE KEYMAT |
摘要 |
A proximity-based mutually capacitance-sensitive touchpad that is disposed directly beneath a keypad keymat of a mobile telephone, wherein posts associated with each key pass through a mutually capacitance-sensitive sensor electrode grid of the touchpad such that the keypad posts do not interfere with touchpad detection and tracking of a pointing object that moves along the keypad surface, to thereby enable touchpad data entry, cursor control, and scroll bar control on a display of the mobile telephone, wherein the keypad posts actuate mechanical switches underneath the touchpad. |
申请公布号 |
EP1405298(A2) |
申请公布日期 |
2004.04.07 |
申请号 |
EP20020746474 |
申请日期 |
2002.06.06 |
申请人 |
CIRQUE CORPORATION |
发明人 |
TAYLOR, BRIAN;LAYTON, MICHAEL, D.;TAYLOR, DAVID |
分类号 |
G06F3/02;G06F1/16;G06F3/0354;G06F3/044;H04B1/38;H04M1/02;H04M1/23;H04M1/247;(IPC1-7):G09G5/00 |
主分类号 |
G06F3/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|