Title:
移動電話キーマットの後ろに近接感知タッチパッドを配置するシステム
Document Type and Number:
Japanese Patent JP4017595
Kind Code:
B2
Abstract:
A proximity-based mutually capacitance-sensitive touchpad (26) that is disposed directly beneath a keypad keymat (22) of a mobile telephone (10), wherein posts (24) associated with each key (20) pass through a mutually capacitance-sensitive sensor electrode grid of the touchpad such that the keypad posts (24) do not interface with touchpad detection and tracking of 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 (32) underneath the touchpad.
Inventors:
Taylor, Brian
Leighton, Michael Dee
Taylor, david
Leighton, Michael Dee
Taylor, david
Application Number:
JP2003501921A
Publication Date:
December 05, 2007
Filing Date:
June 06, 2002
Export Citation:
Assignee:
Sark Corporation
International Classes:
G06F3/02; H04M1/02; G06F1/16; G06F3/0354; G06F3/041; G06F3/044; H04B1/38; H04B1/3822; H04B1/3827; H04M1/23; H04M1/247
Domestic Patent References:
| JP8123610A | ||||
| JP2001076582A | ||||
| JP11154053A | ||||
| JP62128321A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeo Takeuchi
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeo Takeuchi