Imaging and navigation arrangement for controlling a cursor
First Claim
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1. A method for operating an optical pointing device, comprising:
- capturing a plurality of arrays of data, representing light reflected from a surface to a two-dimensional array of photo detectors;
processing at least some of the plurality of arrays of data to estimate movement of the surface during each of a plurality of measurement cycles; and
sending a series of estimated movement update signals to a computer.
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Abstract
A method for operating an optical pointing device involves capturing a plurality of arrays of data, representing light reflected from a surface to a two-dimensional array of photo detectors, processing at least some of the plurality of arrays of data to estimate movement of the surface during each of a plurality of measurement cycles, and sending a series of estimated movement update signals to a computer.
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Citations
18 Claims
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1. A method for operating an optical pointing device, comprising:
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capturing a plurality of arrays of data, representing light reflected from a surface to a two-dimensional array of photo detectors; processing at least some of the plurality of arrays of data to estimate movement of the surface during each of a plurality of measurement cycles; and sending a series of estimated movement update signals to a computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for operating an optical pointing device, comprising:
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capturing a plurality of arrays of data that represent light reflected from spatial features of a fingerprint that covers a smooth transparent surface; processing at least some of the plurality of arrays of data to estimate movement of the fingerprint during each of a plurality of measurement cycles; and sending a series of estimated movement update signals to a computer. - View Dependent Claims (14)
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15. An imaging and navigation arrangement for controlling a cursor on a display of a computer system, the imaging and navigation system comprising:
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a source of light for illuminating a surface; a two-dimensional array of photo detectors, each of the photo detectors producing an output representing light reflected from the surface and received by the photo detectors; and circuitry to track movement of the surface relative to the two-dimensional array of photo detectors by comparing data derived from at least some of the photo detector outputs at a first time with data derived from at least some of the photo detector outputs captured at a second time. - View Dependent Claims (16)
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17. An imaging and navigation arrangement for controlling a cursor on a display of a computer system, the imaging and navigation system comprising:
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a housing having an orifice; a protective transparent window in the orifice; a source of light configured to direct light through the orifice; a two-dimensional array of photo detectors configured to capture a plurality of arrays of data in response to received light; and circuitry to compare data derived from at least some of the photo detector outputs at a first time with data derived from at least some of the photo detector outputs captured at a second time and to output movement information in response to the comparison. - View Dependent Claims (18)
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Specification