| 摘要 |
The present invention generally relates to exemplary aspects and their embodiments of various keys, various key units incorporating such keys, and various key assemblies incorporating such keys and/or key units. More particularly, such a key of the present invention may preferably include multiple sections (or parts) each of which may be assigned or associated with a different character such as a numeral, an alphabet, and/or a symbol. The key unit of the present invention may include mechanical and/or electrical units each of which may be coupled to one of such sections (or parts) of the key and to allow the user to represent such a character assigned to one of such sections (or parts) simply by applying input force thereto. Therefore, such a key unit of the present invention may advantageously allow the user to select any of multiple characters assigned to different sections (or parts) of a single key by providing single input force to any of such sections (or parts), without having to require such an user to manipulate another section of another key. Moreover, such a key unit of this invention may advantageously allow the user to consecutively select all of multiple characters assigned to different sections (or parts) of the single key by consecutively applying input forces only to different sections (or parts) of such a key, without requiring the user to manipulate another section (or part) of another key during manipulation of such sections (or parts) of such a single key and/or without necessitating the user to wait for a preset period to select one of multiple characters assigned to such a single key. The key assembly of the present invention may incorporate such keys and/or key units of the present invention arranged according to preset patterns for the purpose of allowing the user to select each of the character assigned to various sections (or parts) of each of the keys by applying the input forces only to desired sections (or parts) but not to other auxiliary keys thereof.
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