Key input device for portable terminal
First Claim
Patent Images
1. A key input device for a portable terminal including a plurality of keys, comprising:
- at least one wheel key for rotating in multiple directions;
at least one rotating unit allowing the least one wheel key to rotate in respective directions; and
at least one switching unit provided under the at least one wheel key to sense rotation directions of the at least one wheel key and to sense a pressure generated by activation of the rotated wheel key by a user.
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Abstract
A key input device for a portable terminal includes wheel keys capable of rotating in multiple directions and performing a switch function. The key input device including a plurality of keys having at least one wheel keys provided in a main body and rotating in multiple directions, at least one rotating units allowing the wheel keys to rotate in respective directions, and at least one switching units provided under the wheel keys to sense the rotation directions of the wheel keys and to sense a pressure generated by the activation of the rotated wheel keys.
25 Citations
17 Claims
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1. A key input device for a portable terminal including a plurality of keys, comprising:
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at least one wheel key for rotating in multiple directions;
at least one rotating unit allowing the least one wheel key to rotate in respective directions; and
at least one switching unit provided under the at least one wheel key to sense rotation directions of the at least one wheel key and to sense a pressure generated by activation of the rotated wheel key by a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A key input device for a portable terminal including a keypad having a plurality of keys, comprising:
- at least one wheel key provided in the portable terminal to rotate in multiple directions and to sense rotation directions or a pressure generated by pressing of the at least one wheel key.
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10. A method of providing a plurality of key buttons for a portable terminal, comprising:
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providing at least one wheel key for rotating in multiple directions;
providing at least one rotating unit allowing the at least one wheel key to rotate in respective directions; and
providing at least one switching unit provided under the wheel keys to sense rotation directions of the least one wheel key and to sense a pressure generated by activation of the rotated wheel key by a user. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification