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.

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.

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.

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.

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.

Abstract: A graphical user interface for a display uses 3-D sensing in order to manipulate various functions. In particular, instead of a menu being constantly on the display screen occupying space, when the finger of a user is at a certain distance from the screen, the menu then appears. By moving his/her finger in the X and/or Y direction, the user can make a selection from the displayed menu options. This method and GUI does not discriminate a certain part of the screen with less accessibility. Rather, the menu appears immediately in reaction to the user action, and the menu appears at the point of user input.

Abstract: A 3-D display device in which zooming is controlled based on the distance that a user's finger is from the display screen, generates a virtual drop shadow of the user's finger at the detected X/Y position of the user's finger with respect to the display screen. The virtual drop shadow represents the center of the zooming of the display image. In addition the size and darkness of the drop shadow is changed relative to the distance that the user's finger is from the display screen.

Abstract: In a method and apparatus for zooming on a display device, instead of zooming just on the pixels in the display, zooming is effected on discernable objects comprising pixel in the displayed image. Initially, spaces between the discernable objects is reduced, and then the discernable objects are increased in size until the objects reach a minimum surface area, which is the minimum size, based on the size and resolution of the display, recognizable by a user. Zooming is then suspended until the user selects one of the objects. Zooming is then allowed to continue on only the selected object until the maximum zooming factor is reached.