Use of a two finger input on touch screens
First Claim
1. A system for detecting two-finger input on a touch screen, the system comprising:
- a display screen;
a sensing grid arranged for sensing a position of a user relative to the display screen;
a plurality of electrodes arranged at corners of the sensing grid, the plurality of electrodes being electrically connected to the sensing grid;
a controller configured to receive an output from the sensing grid; and
a control module configured to identify at least two points on the sensing grid indicating locations on the display screen selected by the user and to identify a geographic portion of the display screen based on the at least two points, the at least two points being related to relative positions of two fingers of the user with respect to a surface of the display screen,wherein the identified geographic portion of the display screen is configured to rotate based on a change in a relative height of the two fingers from the surface of the display screen.
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Accused Products
Abstract
A system and method for detecting at least two-finger input on a touch screen of a display such as computer, etc. includes a display screen; a sensing grid arranged for sensing touch on said display screen; a plurality of electrodes connected electrically to the sensing grid. A controller receives an output from the sensing grid, and a module identifies at least two points on the grid indicating locations of the display screen that have been touched by a user and identifies a geographic portion of the display screen to be identified based on said at least two points. As the position of the fingers are relative to the position of the screen via change in a direction of a Z-coordinate, a variable zoom can be provided by the sensing grid commensurate with different distances that the multiple fingers are sensed from the display screen.
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Citations
18 Claims
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1. A system for detecting two-finger input on a touch screen, the system comprising:
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a display screen; a sensing grid arranged for sensing a position of a user relative to the display screen; a plurality of electrodes arranged at corners of the sensing grid, the plurality of electrodes being electrically connected to the sensing grid; a controller configured to receive an output from the sensing grid; and a control module configured to identify at least two points on the sensing grid indicating locations on the display screen selected by the user and to identify a geographic portion of the display screen based on the at least two points, the at least two points being related to relative positions of two fingers of the user with respect to a surface of the display screen, wherein the identified geographic portion of the display screen is configured to rotate based on a change in a relative height of the two fingers from the surface of the display screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification