Apparatus and method for configuring a touch screen
First Claim
1. A method for determining an operating frequency of a touch screen unit, the method comprising:
- providing a first set of sinusoidal signals to a plurality of electrodes of a touch screen, each sinusoidal signal in the the first set of sinusoidal signals having a first frequency;
determining a first value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by a person and when the first set of sinusoidal signals is provided to the plurality of the electrodes;
providing a second set of sinusoidal signals to the plurality of electrodes of the touch screen, each sinusoidal signal in the second set of sinusoidal signals having a second frequency;
determining a second value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by the person and when the second set of sinusoidal signals is provided to the plurality of the electrodes; and
determining an operating frequency of sinusoidal signals to be provided to the plurality of electrodes based on the first value and the second value.
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Accused Products
Abstract
In a method for determining an operating frequency of a touch screen unit a first set of sinusoidal signals may be provided to a plurality of electrodes of a touch screen, each sinusoidal signal in the the first set of sinusoidal signals having a first frequency, and a first value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by a person and when the first set of sinusoidal signals is provided to the plurality of the electrodes may be determined. A second set of sinusoidal signals may be provided to the plurality of electrodes of the touch screen, each sinusoidal signal in the second set of sinusoidal signals having a second frequency, and a second value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by the person and when the second set of sinusoidal signals is provided to the plurality of the electrodes may be determined. An operating frequency of sinusoidal signals to be provided to the plurality of electrodes may be determined based on the first value and the second value.
28 Citations
18 Claims
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1. A method for determining an operating frequency of a touch screen unit, the method comprising:
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providing a first set of sinusoidal signals to a plurality of electrodes of a touch screen, each sinusoidal signal in the the first set of sinusoidal signals having a first frequency;
determining a first value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by a person and when the first set of sinusoidal signals is provided to the plurality of the electrodes;
providing a second set of sinusoidal signals to the plurality of electrodes of the touch screen, each sinusoidal signal in the second set of sinusoidal signals having a second frequency;
determining a second value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by the person and when the second set of sinusoidal signals is provided to the plurality of the electrodes; and
determining an operating frequency of sinusoidal signals to be provided to the plurality of electrodes based on the first value and the second value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A touch screen apparatus, comprising:
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a configurable clock generator to generate a clock signal having a configurable clock frequency, the configurable clock generator having an oscillator, a phase locked loop coupled to the oscillator, and a configurable frequency divider coupled to the phase locked loop;
a sinusoid generator coupled to a plurality of electrodes of a touch screen and coupled to the configurable clock generator, the first sinusoid generator adapted to generate a sinusoidal signal having a frequency based on the clock frequency;
a plurality of sensors coupled to the plurality of electrodes to generate sensed signals indicative of signals flowing from each electrode of the plurality of electrodes; and
a touch position calculator coupled to the plurality of sensors adapted to generate an estimate of a touch position based on the sensed signals. - View Dependent Claims (9, 10, 11, 12)
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13. A method for facilitating game play via a gaming apparatus, the gaming apparatus comprising a value input device, a display unit, and a touch screen unit, the gaming method comprising:
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receiving a value input from a player via the value input device;
causing the display unit to display a first game display relating to one of the following games;
poker, blackjack, slots, keno or bingo;
determining an operating frequency of the touch screen unit;
receiving a game play input from the player via a touch screen of the touch screen unit;
determining a value payout associated with an outcome of the game;
wherein determining the operating frequency of the touch screen unit, comprises;
providing a first set of sinusoidal signals to a plurality of electrodes of the touch screen, each sinusoidal signal in the the first set of sinusoidal signals having a first frequency;
determining a first value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by a person and when the first set of sinusoidal signals is provided to the plurality of the electrodes;
providing a second set of sinusoidal signals to the plurality of electrodes of the touch screen, each sinusoidal signal in the second set of sinusoidal signals having a second frequency;
determining a second value indicative of the amount of current flowing from the plurality of electrodes when the touch screen is not being touched by the person and when the second set of sinusoidal signals is provided to the plurality of the electrodes; and
determining an operating frequency of sinusoidal signals to be provided to the plurality of electrodes based on the first value and the second value.
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14. A gaming apparatus, comprising:
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a display unit;
a value input device;
a touch screen unit including;
a configurable clock generator to generate a clock signal having a configurable clock frequency, the configurable clock generator having an oscillator, a phase locked loop coupled to the oscillator, and a configurable frequency divider coupled to the phase locked loop;
a sinusoid generator coupled to a plurality of electrodes of a touch screen and coupled to the configurable clock generator, the first sinusoid generator adapted to generate a sinusoidal signal having a frequency based on the clock frequency;
a plurality of sensors coupled to the plurality of electrodes to generate sensed signals indicative of signals flowing from each electrode of the plurality of electrodes; and
a touch position calculator coupled to the plurality of sensors adapted to generate an estimate of a touch position based on the sensed signals. a main controller operatively coupled to the display unit, the value input device, and the touch screen unit, the main controller comprising a main processor and a main memory operatively coupled to the main processor, the main controller being programmed to receive value input data via the value input device, the main controller being programmed to cause the display unit to generate a first game display relating to one of the following games;
poker, blackjack, slots, keno or bingo,the main controller being programmed to receive player input data via the touch screen unit, the main controller being programmed to determine a value payout associated with an outcome of the game. - View Dependent Claims (15, 16, 17, 18)
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Specification