Touch screen with user interface enhancement
First Claim
1. An integrated display and touch screen control system for a portable computer of the type which includes a host central processing unit (CPU), a display screen, and a touch sensor having a sensing region overlaying the display screen, the integrated control system comprising:
- a touch sensor controller configured to operate the touch sensor to sense user input at the display screen;
a display controller configured to operate the display screen to display images; and
a central display and touch screen controller configured to control communication between the host CPU and each of the display controller and touch sensor controller;
wherein the integrated display and touch screen control system is configured to;
receive a sequence of images from the host CPU for display on the display screen;
interpose an image, without further participation from the host CPU, into the sequence of images in response to user input sensed by the touch sensor; and
cause the sequence of images including the interposed image from the touch screen control system to appear on the display screen.
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Accused Products
Abstract
The present invention is a graphical user interface in a computing device having a processor running an operating system and a display. The graphical user interface comprises a touch screen and a driver coupling the touch screen to the operating system. The driver can display a plurality of icons on the touch screen, or a plurality of screen images having at least one icon, with each of the icons associated with operations on the display and/or the touch screen. Other embodiments include the touch screen having unactivated and activated states, as well as the presence of an application programming interface that enables an application to display at least one image on the touch screen.
225 Citations
19 Claims
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1. An integrated display and touch screen control system for a portable computer of the type which includes a host central processing unit (CPU), a display screen, and a touch sensor having a sensing region overlaying the display screen, the integrated control system comprising:
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a touch sensor controller configured to operate the touch sensor to sense user input at the display screen; a display controller configured to operate the display screen to display images; and a central display and touch screen controller configured to control communication between the host CPU and each of the display controller and touch sensor controller; wherein the integrated display and touch screen control system is configured to; receive a sequence of images from the host CPU for display on the display screen; interpose an image, without further participation from the host CPU, into the sequence of images in response to user input sensed by the touch sensor; and cause the sequence of images including the interposed image from the touch screen control system to appear on the display screen. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating an integrated display and touch screen control system for a portable computer of the type comprising a host processor, a display screen, and a touch sensor having a sensing region overlying the display screen wherein the integrated display and touch screen control system is distinct from the host processor, the method comprising:
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receiving a sequence of images from the host processor for display on a display screen of the touch screen device; interposing an image, without further participation from the host processor, from the integrated display and touch screen control system into the sequence of images in response to user input sensed by the touch sensor; and causing the sequence of images including the image from the integrated display and touch screen control system to appear on the display. - View Dependent Claims (9, 10, 11, 12)
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13. An integrated display and touch screen control system adapted to be physically integrated in a computing system having a host processor, a display screen, and a touch sensor overlying the display screen, the integrated display and touch screen control system comprising:
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a touch sensor controller configured to operate the touch sensor to sense user input at the display screen; a central touch screen controller configured to receive a sequence of images from the host processor for display on the display screen and interpose an image from the touch screen controller into the sequence of images; and a display screen controller configured to cause the sequence of images including the image from the touch screen controller to appear on the display screen. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification