METHOD OF PROCESSING DATA GENERATED BY A USER INPUT DEVICE FOR INDICATING POSITIONS
First Claim
1. Method of processing data generated by a user input device for indicating positions, which user input device includes:
- a transmitter arrangement (4,5) for directing wave energy across a surface (1) in at least two directions,a sensor arrangement (6,7) at a periphery of the surface (1) for detecting wave energy received across the surface within any of a plurality of fields of view, at least some of which are mutually intersecting, anda processing device (12) for determining potential positions of objects (2,3) placed on the surface (1), based on signals from the sensor arrangement (6,7) indicating intersecting at least partially blocked fields of view, which method includes;
receiving information (19) from the processing device (12) representative of at least one set of potential positions of a plurality of objects (2,3) andintersecting the received information (19) with information (21) representing a set of pre-determined positions.
2 Assignments
0 Petitions
Accused Products
Abstract
A user input device for indicating positions includes a transmitter arrangement (4,5) for directing wave energy across a surface (1) in at least two directions, a sensor arrangement (6,7) at a periphery of the surface (1) for detecting wave energy received across the surface within any of a plurality of fields of view, at least some of which are mutually intersecting, and a processing device (12) for determining potential positions of objects (2,3) placed on the surface (1), based on signals from the sensor arrangement (6,7) indicating intersecting at least partially blocked fields of view. A method of processing data generated by the user input device includes receiving information (19) from the processing device (12) representative of at least one set of potential positions of a plurality of objects (2,3) and intersecting the received information (19) with information (21) representing a set of pre-determined
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Citations
16 Claims
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1. Method of processing data generated by a user input device for indicating positions, which user input device includes:
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a transmitter arrangement (4,5) for directing wave energy across a surface (1) in at least two directions, a sensor arrangement (6,7) at a periphery of the surface (1) for detecting wave energy received across the surface within any of a plurality of fields of view, at least some of which are mutually intersecting, and a processing device (12) for determining potential positions of objects (2,3) placed on the surface (1), based on signals from the sensor arrangement (6,7) indicating intersecting at least partially blocked fields of view, which method includes; receiving information (19) from the processing device (12) representative of at least one set of potential positions of a plurality of objects (2,3) and intersecting the received information (19) with information (21) representing a set of pre-determined positions. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 11, 16)
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7. System for processing data generated by a user input device for indicating positions, which user input device includes:
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a transmitter arrangement (4,5) for directing wave energy across a surface (1) in at least two directions, a sensor arrangement (6,7) at a periphery of the surface (1) for detecting wave energy received across the surface (1) within any of a plurality of fields of view, at least some of which are mutually intersecting; and a processing device (12) for determining potential positions of objects (2,3) placed on the surface (1), based on signals from the sensor arrangement (6,7) indicating intersecting at least partially blocked fields of view, wherein the system includes; an interface for receiving information (19) from the processing device (12) representative of at least one set of potential positions of a plurality of objects (2,3) and wherein the system is operative to intersect the received information (19) with information (21) representing a set of pre-determined positions.
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10. Apparatus for obtaining user input identifying positions in two dimensions, including:
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a transmitter arrangement (4,5) for directing wave energy across a surface (1) in at least two directions, a sensor arrangement (6,7) at a periphery of the surface (1) for detecting wave energy received across the surface (1) within any of a plurality of fields of view, at least some of which are mutually intersecting, and a data processing system (12,15 17), configured to determine at least one set of potential positions of objects (2,3) placed on the surface (1), based on signals from the sensor arrangement (6,7) indicating intersecting at least partially blocked fields of view, to retrieve information (19) representative of a set of pre-determined positions and to determine an intersection between the set of pre-determined positions and each set of potential positions. - View Dependent Claims (12, 13, 14, 15)
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Specification