| 摘要 |
A display pointing device ( 10 ) includes a fingerprint sensing circuit ( 18 ) that optically senses, for example, a portion of a fingerprint or other skin texture, and a fingerprint movement detection circuit ( 20 ), operatively coupled to the fingerprint sensing circuit ( 18 ), that is operative to determine a direction of movement and a rate of movement of skin texture being sensed by the fingerprint sensing circuit ( 18 ) to produce pointing output data ( 24 ) for a display ( 12 ). The pointing output data ( 24 ) may be, for example, data representing a visual indication of a position on a display screen, such as a position of a cursor or of highlighted text, or any other suitable position indication. A method for providing pointing information for display includes sensing a fingerprint, determining a direction of movement and a rate of movement of the fingerprint and producing a pointing output for display based on a determined direction of movement and rate of movement of the sensed fingerprint.
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