Miniature keyboard for entering data into processor
The miniature keyboard has 55 alphanumeric and functions symbols. Pressing some of the symbols (6) operate a single key switch. Other areas (7) have two key-switches operated by one symbol. Other areas (8) have four key-switches operated by one symbol. The electronic circuit analyses the combination...
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| Format: | Patent |
| Sprache: | dut ; eng |
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| Zusammenfassung: | The miniature keyboard has 55 alphanumeric and functions symbols. Pressing some of the symbols (6) operate a single key switch. Other areas (7) have two key-switches operated by one symbol. Other areas (8) have four key-switches operated by one symbol. The electronic circuit analyses the combination of closed switches and determines the intended symbol. |
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