| 发明名称 |
MULTI-LAYER SOLID STATE KEYBOARD |
| 摘要 |
A keypad includes a substrate (20) and one or more layers of decorative material (22, 24, 26, 28) on the substrate. Transparent and/or conventional conductive materials (30, 40) are disposed on the decorative material. Electrical circuit components are soldered to the conductive layers.
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| 申请公布号 |
CA2522788(A1) |
申请公布日期 |
2004.11.04 |
| 申请号 |
CA20042522788 |
申请日期 |
2004.04.22 |
| 申请人 |
TOUCHSENSOR TECHNOLOGIES, LLC |
发明人 |
SCHAEFER, WILLIAM DAVID;CALDWELL, DAVID W. |
| 分类号 |
H01H13/702;H01H13/703;(IPC1-7):H01H13/70 |
主分类号 |
H01H13/702 |
| 代理机构 |
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代理人 |
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