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US 6,788,288 B2Granted
Coordinate input device and portable information apparatus equipped with coordinate input device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorTadashi Ano
Life of this patent
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Abstract
A coordinate input device has a keyboard; a rotary dial annular in shape and mounted in substantially the same plane as the keyboard, the rotary dial being rotatable within the plane; and a rotation detector for detecting the amount and direction of rotation of the rotary dial, and wherein: the rotary dial is disposed below the keyboard.
Claims20
A coordinate input device comprising:
- a keyboard;
- a rotary dial annular in shape and having a substantially flat upper surface mounted flush with the same plane of said keyboard, said upper surface of said rotary dial being rotatable within said plane;
- and
- a rotation detector for detecting the amount and direction of rotation of said rotary dial, and wherein:
- said rotary dial is disposed below said keyboard.
2 more elements
Dependencies are inferred from the claim text.