Touchpad
First Claim
Patent Images
1. An electronic device comprising:
- a touchpad based on polar coordinatesa processor coupled to said touchpad,wherein said processor is configured to combine both the angular coordinate and the radial coordinate received from said touchpad and transforms these two coordinates into a single input/control variable.
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Abstract
A touchpad based on polar coordinates, in which the angular position and the radial position are transformed into a one-dimensional signal. The progressiveness of the relation between the angular position and the one-dimensional signal is a function of the radial position. The touchpad may have two discrete curved sections with different input sensitivity. The touchpad may also be provided with a central select key.
46 Citations
53 Claims
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1. An electronic device comprising:
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a touchpad based on polar coordinates a processor coupled to said touchpad, wherein said processor is configured to combine both the angular coordinate and the radial coordinate received from said touchpad and transforms these two coordinates into a single input/control variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method in which a rotary or swirling finger movement over a touchpad that is operated with polar coordinates is used as input for an electronic device, comprising:
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associating an angular motion of a finger over the touchpad with a change in a one dimensional parameter in accordance with a function with a variable progressiveness, changing the progressiveness of said function as a function of the radial position of the object moving over the touchpad. - View Dependent Claims (12, 13, 14, 15)
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- 16. A touchpad based on polar coordinates, comprising at least two distinct and substantially concentrically arranged curved touchpad areas.
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27. An electronic device comprising:
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an input device including at least a first and a second substantially concentrically arranged curved touchpad areas, a processor coupled to said input device, said processor being configured to associate an angular motion of an object over the first curved touchpad area with a change in a one dimensional parameter of said device in accordance with a function with first level progressiveness, and said processor being configured to associate an angular motion of an object over the second curved touchpad area with a change in a one dimensional parameter of said device in accordance with said function with a second level progressiveness different from said first level progressiveness. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A computer readable medium including at least computer program code for interacting with a graphical user interface produced on a display device of an electronic device, said computer readable medium including at least:
- computer program code for receiving a rotational movement associated with a user input action;
radial position associated with a user input action and computer program code for combining the rotational movement input and the radial position input into a one dimensional input parameter. - View Dependent Claims (34)
- computer program code for receiving a rotational movement associated with a user input action;
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35. A method in which a rotary or swirling finger movement over a touchpad that is operated with polar coordinates is used as input for an electronic device, said touchpad being provided with an array of lights under the touchpad or adjacent to the borders of the touchpad comprising:
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sensing the position and/or velocity of the finger movement over the touchpad, activating and deactivating one or more of said lights in said array as a function of the position and or velocity sensed by the touchpad. - View Dependent Claims (36, 37, 38, 39, 40)
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- 41. A capacitive touchpad comprising an at least semi-translucent touch surface, a plurality of individually and selectively activatable lights disposed below the transparent touch surface, said lights being arranged such that they are visible trough the touch surface of the touchpad when they are active.
Specification