Multipoint, virtual control, and force based touch screen applications
DCFirst Claim
Patent Images
1. A touch interface comprising:
- a display screen including a front surface and a rear surface and adapted to display visually observable data;
a sensor circuit adapted to identify a characteristic of a touch input on the front surface of the display screen; and
a force element responsive to the sensor circuit and adapted to excite the display screen rear surface by generating a force feedback signal in response to the characteristic of the touch input.
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Abstract
A method and apparatus are provided providing a touch screen having multipoint sensing and/or force based sensing and feedback capability useful in many applications which extend beyond traditional computer applications. The touch screen can be located in many non-traditional locations as well, such as desks, tables, walls, vehicles, and the like. The apparatus may be used by a single user, or multiple users, employing fingers, hands, feet and other body portions, if desired or practical. Related applications for virtual image or physical control applications are also disclosed.
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Citations
42 Claims
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1. A touch interface comprising:
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a display screen including a front surface and a rear surface and adapted to display visually observable data; a sensor circuit adapted to identify a characteristic of a touch input on the front surface of the display screen; and a force element responsive to the sensor circuit and adapted to excite the display screen rear surface by generating a force feedback signal in response to the characteristic of the touch input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A computer implemented method for providing tactile feedback in response to input received from a user, the method comprising:
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providing a touch screen including a front surface, the touch screen adapted to display visually observable data; providing a force element to actuate the touch screen; detecting a first touch input on the touch screen front surface; determining a characteristic of the first touch input; actuating the touch screen perpendicular to the touch screen front surface with the force element to provide a first force feedback signal in response to said detecting step; detecting a second touch input; determining a characteristic of the second touch input different from the characteristic of the first touch input; and actuating the touch screen front surface with a second force feedback signal different from the first force feedback signal. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A touch interface comprising:
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a display screen including a front surface and adapted to display visually observable data; a sensor circuit adapted to identify the location of at least two simultaneous contacts on the front surface of the display screen; and a force element responsive to the sensor circuit and adapted to excite the display screen by generating a force feedback signal in response to at least one of the at least two simultaneous contacts. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A computer implemented method for providing tactile feedback in response to input received from a user, the method comprising:
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providing a touch screen including a front surface, the touch screen adapted to display visually observable data; identifying a first touch input in a first location on the touch screen front surface from one of a finger and a thumb; identifying a second touch input in a second location on the touch screen front surface from one of a finger and a thumb, the first touch input and the second touch input being simultaneously in contact with the touch screen front surface, the first location and the second location being different from one another; and vibrating the touch screen front surface with a force feedback signal. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification