Virtual data input device
DCFirst Claim
1. A virtual data input device optically interfacing with an operator to detect the positions of a plurality of objects within an input zone to allow the operator to enter data into associated electronic equipment, wherein each of the positions of the plurality of objects within the input zone corresponds to a unique selection of data to be entered into the electronic equipment, the input device comprising;
- a source of optical sensor light illuminating the input zone with sensor light, the sensor light reflecting off the plurality of objects in a direction generally toward the input device;
an optical detector arranged to receive the reflected sensor light as a reflected light pattern representing the positions of the plurality of objects within the input zone, the optical detector converting the reflected light pattern to an electrical signal representing the positions of the plurality of objects within the input zone; and
a microprocessor that receives the electrical signal from the optical detector and is programmed to correlate the electrical signal to the unique selection of data based on the positions of the plurality of objects within the input zone.
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Abstract
A virtual data input device to optically interface with an operator to detect the position of objects within a particular input zone, i.e., an area in which the operator may interact to enter character data into associated computing equipment. Each character data corresponds to a unique arrangement and position of the objects within the input zone, e.g., operator'"'"'s fingers on a virtual keyboard. The input device includes a source of optical sensor light illuminating the input zone with sensor light, which reflects off the operator'"'"'s fingers. The data input device also includes an optical detector to receive the reflected sensor light as a reflected light pattern representing the position of the operator'"'"'s fingers within the input zone. The optical detector converts the reflected light pattern to an electrical signal representing the particular character data. A microprocessor then receives the electrical signal and correlates the electrical signal to character data.
317 Citations
27 Claims
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1. A virtual data input device optically interfacing with an operator to detect the positions of a plurality of objects within an input zone to allow the operator to enter data into associated electronic equipment, wherein each of the positions of the plurality of objects within the input zone corresponds to a unique selection of data to be entered into the electronic equipment, the input device comprising;
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a source of optical sensor light illuminating the input zone with sensor light, the sensor light reflecting off the plurality of objects in a direction generally toward the input device;
an optical detector arranged to receive the reflected sensor light as a reflected light pattern representing the positions of the plurality of objects within the input zone, the optical detector converting the reflected light pattern to an electrical signal representing the positions of the plurality of objects within the input zone; and
a microprocessor that receives the electrical signal from the optical detector and is programmed to correlate the electrical signal to the unique selection of data based on the positions of the plurality of objects within the input zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 27)
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17. A method of detecting positions of a plurality of objects within an input zone to allow an operator to enter data into electronic equipment, the data corresponding to unique positions of the plurality of objects within the input zone, the method comprising the steps of:
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establishing a reference position to associate an initial position of the objects within the input zone;
associating a plurality of positions of the objects within the input zone to unique data;
providing a source of optical sensor light;
illuminating the input zone with the source of optical sensor light such that the sensor light reflects off the objects;
receiving the reflected sensor light as a reflected light pattern representing the positions of the plurality of objects within the input zone;
converting the reflected light pattern to an electrical signal;
correlating the electrical signal to the unique selection of data based on the positions of the plurality of objects within the input zone; and
inputting the selected data into the electronic equipment. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification