Computer Input Device
OwnerPeigen Jiang, Jian Suninventors
Life of this patent
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Abstract
A computer input method is described which comprises providing a plurality of light emitting and receiving devices for detecting one or more touches on a first area of a computer keyboard, coarsely scanning the first area using the plurality of light emitting and receiving devices when no contact on the first area being detected, and densely scanning a second area using a subset of the plurality of light emitting and receiving devices when one or more contact on the first area being detected, the second area being smaller than and situated within the first area.
Claims18
A computer input method comprising:
- providing a plurality of light emitting and receiving devices for detecting one or more touches on a first area of a computer keyboard;
- coarsely scanning the first area using the plurality of light emitting and receiving devices when no contact on the first area being detected;
- and
- densely scanning a second area using a subset of the plurality of light emitting and receiving devices when one or more contact on the first area being detected, the second area being smaller than and situated within the first area.
A computer input method comprising:
- providing a plurality of light emitting and receiving devices for detecting one or more touches on a first area of a computer keyboard;
- coarsely scanning the first area using the plurality of light emitting and receiving devices when no contact on the first area being detected;
- densely scanning a second area using a subset of the plurality of light emitting and receiving devices when one or more contact on the first area being detected, the second area being smaller than and situated within the first area;
- counting a time during which no contact on the first area of the keyboard being detected, and switching from the dense scanning to the coarse scanning when the no-contact time being longer than a predetermined length.
A computer input device comprising a first and a second group of light emitting devices situated near an edge of a computer keyboard, devices within the first group of light emitting devices having a smaller distance between two adjacent light emitting devices than that of two adjacent light emitting devices within the second group of light emitting devices.
Dependencies are inferred from the claim text.