| 发明名称 |
Keyboard having buttons positioned for operation by heel of hand |
| 摘要 |
A computer input device including a keyboard with built in pointing device, and left- and right-pointer control buttons operable by the thumbs includes additional left- and right-pointer control buttons located to each side for easy operation by the outer edge of the hands.
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| 申请公布号 |
US6614421(B1) |
申请公布日期 |
2003.09.02 |
| 申请号 |
US19980083680 |
申请日期 |
1998.05.22 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SELKER EDWIN JOSEPH;SMITH BARTON ALLEN;WYANT TODD CLOSSEN |
| 分类号 |
G06F3/023;G09G5/00;(IPC1-7):G09G5/00 |
主分类号 |
G06F3/023 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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