System and method for filtering touch screen inputs
First Claim
Patent Images
1. A method of filtering a touch screen input, the method comprising the steps of:
- detecting a position of a first center of contact of a finger impression on a touch screen;
detecting a position for each of one or more second centers of contact of the finger impression on the touch screen; and
providing a touch event signal if the positions of all of the second centers of contact of the finger impression are within a common validation area.
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Abstract
A method of filtering a touch screen input is disclosed that includes the steps of detecting a position of a first touch on a touch screen, determining a validation area that includes the position of the first touch, detecting a position for each of one or more second touches on the touch screen, and providing a touch event signal if the positions of all of the second touches are within the validation area.
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Citations
37 Claims
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1. A method of filtering a touch screen input, the method comprising the steps of:
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detecting a position of a first center of contact of a finger impression on a touch screen; detecting a position for each of one or more second centers of contact of the finger impression on the touch screen; and providing a touch event signal if the positions of all of the second centers of contact of the finger impression are within a common validation area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16)
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10. A non-transitory computer-readable medium having computer-executable instructions stored thereon for execution by a processor to perform a method of filtering touch screen inputs, the method comprising the steps of:
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detecting a position of a first center of contact of a finger impression on a touch screen; detecting a position for each of one or more second centers of contact of the finger impression on the touch screen; and providing a touch event signal if the positions of all of the second centers of contact of the finger impression are within a common validation area. - View Dependent Claims (11, 12, 13)
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17. A method of filtering touch screen inputs, the method comprising the steps of:
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detecting one or more positions for one or more centers of contact of a finger impression on a touch screen, the one or more centers located within a fingerprint area of a finger impression; and providing a touch event signal if the positions of a determined number of most recent centers of contact of the finger impression are within a trigger area associated with the fingerprint area. - View Dependent Claims (18, 19, 20, 21)
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22. A non-transitory computer-readable medium having computer-executable instructions stored thereon for execution by a processor to perform a method of filtering touch screen inputs, the method comprising the steps of:
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detecting one or more positions for one or more centers of contact of a finger impression on a touch screen, the one or more centers located within a fingerprint area of a finger impression; and providing a touch event signal if the positions of a determined number of most recent centers of contact of the finger impression are within a trigger area associated with the fingerprint area. - View Dependent Claims (23, 24, 25, 26)
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27. A method of filtering touch screen inputs, the method comprising the steps of:
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starting a count-down timer with a determined period of count-down time and setting a counter to 1 and determining a validation area upon detection of a first contact of a finger impression on a touch screen; incrementing the counter upon determining that a position of another contact of the finger impression on the touch screen detected before the timer times out is within the validation area; and providing a touch-down event signal if the counter is greater than or equal to a determined number. - View Dependent Claims (28, 29, 30)
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31. A non-transitory computer-readable medium having computer-executable instructions stored thereon for execution by a processor to filter touch screen inputs, the filtering comprising the steps of:
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starting a count-down timer with a determined period of count-down time and setting a counter to 1 and determining a validation area upon detection of a first contact of a finger impression on a touch screen; incrementing the counter upon determining that a position of another contact of the finger impression on the touch screen detected before the timer times out is within the validation area; and providing a touch-down event signal if the counter is greater than or equal to a determined number. - View Dependent Claims (32, 33, 34)
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35. A medical device comprising:
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a touch screen configured to sense a touch; a processor configured to accept a touch event signal; and a touch screen controller coupled to the touch screen and the processor, the controller configured to; detecting a position of a first center of contact of a finger impression on a touch screen; detecting a position for each of one or more second centers of contact of the finger impression on the touch screen; and providing a touch event signal if the positions of all of the second centers of contact of the finger impression are within a common validation area.
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36. A medical device comprising:
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a touch screen configured to sense a touch; a processor configured to accept a touch event signal; and a touch screen controller coupled to the touch screen and the processor, the controller configured to; detecting one or more positions for one or more centers of contact of a finger impression on a touch screen, the one or more centers located within a fingerprint area of a finger impression; and providing a touch event signal if the positions of a determined number of most recent centers of contact of the finger impression are within a trigger area associated with the fingerprint area.
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37. A medical device comprising:
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a touch screen configured to sense a touch; a processor configured to accept a touch event signal; and a touch screen controller coupled to the touch screen and the processor, the controller configured to; start a count-down timer with a determined period of count-down time and setting a counter to 1 and determining a validation area upon detection of a first contact of a finger impression on a touch screen; increment the counter upon determining that a position of another contact of the finger impression on the touch screen detected before the timer times out is within the validation area; and provide a touch-down event signal if the counter is greater than or equal to a determined number.
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Specification