Object position detector with edge motion feature and gesture recognition
DCFirst Claim
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1. A method of processing a user input received on a capacitive touch sensor pad including a matrix of X and Y conductors, the method comprising the steps of:
- developing capacitance profiles in one of an X direction and a Y direction from said matrix of X and Y conductors, said capacitance profiles identifying a simultaneous presence of at least two user input objects on said capacitive touch sensor pad;
examining said capacitance profiles to determine an occurrence of a single gesture resulting from the simultaneous presence of the at least two user input objects; and
indicating the occurrence of said single gesture resulting from said simultaneous presence of the at least two user input objects.
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Abstract
A method of generating a signal comprising providing a capacitive touch sensor pad including a matrix of X and Y conductors, developing capacitance profiles in one of an X direction and a Y direction from the matrix of X and Y conductors, determining an occurrence of a single gesture through an examination of the capacitance profiles, the single gesture including an application of at least two objects on the capacitive touch sensor pad, and generating a signal indicating the occurrence of the single gesture.
442 Citations
20 Claims
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1. A method of processing a user input received on a capacitive touch sensor pad including a matrix of X and Y conductors, the method comprising the steps of:
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developing capacitance profiles in one of an X direction and a Y direction from said matrix of X and Y conductors, said capacitance profiles identifying a simultaneous presence of at least two user input objects on said capacitive touch sensor pad; examining said capacitance profiles to determine an occurrence of a single gesture resulting from the simultaneous presence of the at least two user input objects; and indicating the occurrence of said single gesture resulting from said simultaneous presence of the at least two user input objects. - View Dependent Claims (2, 3, 8, 14, 15, 16, 17, 18, 19, 20)
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4. A capacitive sensor comprising:
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a matrix of X and Y conductors; sensing circuitry coupled to each of said X and Y conductors and configured to generate outputs based on the capacitance of said X and Y conductors; and an arithmetic unit coupled to said sensing circuitry and configured to develop a first capacitance profile in an X direction in response to said outputs of said sensing circuitry, and to examine said first capacitance profile to determine an occurrence of a single gesture resulting from the simultaneous proximity of at least two input objects to said matrix of X and Y conductors. - View Dependent Claims (5, 6, 7, 9)
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10. An input device comprising:
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a matrix of conductors; sensing circuitry coupled to each of said conductors and configured to generate outputs based on the capacitance of said conductors; and an arithmetic unit coupled to said sensing circuitry and configured to develop at least one capacitance profile in response to said outputs of said sensing circuitry, to examine said at least one capacitance profile to determine an occurrence of a single gesture resulting from the simultaneous proximity of at least two input objects to said matrix of conductors, and to indicate the occurrence of said single gesture resulting from said at least two input objects. - View Dependent Claims (11, 12, 13)
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Specification