发明名称 |
Device for inputting alphanumeric and special symbols |
摘要 |
In a keyboard with a restricted number of input keys, shifting between upper-case and lower-case character letters is effected with a key which is otherwise available for character or symbol entry. The upper case shift is accomplished by actuating a control element while observing a particular timing condition. Toggling the control element allows for comfortable caps shifting.
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申请公布号 |
US6130628(A) |
申请公布日期 |
2000.10.10 |
申请号 |
US19980044538 |
申请日期 |
1998.03.19 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
SCHNEIDER-HUFSCHMIDT, MATTHIAS;VOLLAND, RAINER |
分类号 |
G06F3/023;H03M11/18;(IPC1-7):H03M11/00 |
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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