发明名称 |
Method and apparatus for scanning a key or button matrix |
摘要 |
An improved key matrix scanning technique conducts a first pre-scan on a first array of connections in a key matrix to identify any activated keys or buttons associated with the first array. A second sub-scan is conducted on a second array of connections in the key matrix but only for the connections in the first array that are detected as having activated keys.
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申请公布号 |
US2006007023(A1) |
申请公布日期 |
2006.01.12 |
申请号 |
US20040888666 |
申请日期 |
2004.07.08 |
申请人 |
WRIGHT DAVID G;ASBURY RAY |
发明人 |
WRIGHT DAVID G.;ASBURY RAY |
分类号 |
H03K17/94 |
主分类号 |
H03K17/94 |
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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