Touch-sensitive device for scrolling a document on a display
First Claim
1. A touch-sensitive device for scrolling a document on a display screen, said device comprising:
- a scrolling area extending along a longitudinal axis, the scrolling area having a width in a direction perpendicular to the longitudinal axis, and opposed first and second ends each having a distal endwherein the width of the scrolling area substantially enlarges or tapers along the longitudinal axis toward the first or second end from a central portion of the scrolling area for providing tactile feedback to a user prior to the user'"'"'s finger reaching either the first or second end of the scrolling area that the user'"'"'s finger is approaching one of the first and second ends;
tactile feedback means being located on or proximate to the scrolling area between the distal ends, wherein the tactile feedback provided to the user is indicative of how close the user'"'"'s finger is to one of the first and second ends prior to the user'"'"'s finger reaching the one of the first and second ends while inside the scrolling area,wherein the scrolling area is configured to sense movement of the user'"'"'s finger on the scrolling area along the longitudinal axis and cause the document to be moved relative to the display screen in tandem with the movement of the user'"'"'s finger,wherein the tactile feedback means is located on an outer surface on the scrolling area,wherein the tactile feedback means includes surface texture on the outer surface of the scrolling area, andwherein the tactile feedback means includes discrete surface texture changes on the outer surface of the scrolling area spaced apart along the longitudinal axis so that each discrete surface texture change is indicative of a relative position along the longitudinal axis between the first and second ends.
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Abstract
A touch-sensitive device for use as an electronic input device for controlling by scrolling the visible portion of a document or image relative to a display. The device can include various improved configurations such as physically separate opposed input surfaces at opposite longitudinal ends and/or lateral sides. The end regions of a touch sensitive surface may be rounded and/or tapered to provide relative positional feedback to the user. Tactile positional feedback can also include surface texture changes on the scrolling area and/or changes in the surface of the frame in the region immediately adjacent the scrolling area. The touch sensitive areas may be provided within a split alphanumeric section of an ergonomic keyboard to enable scrolling without the user having to remove his or her hands from the alphanumeric section.
21 Citations
12 Claims
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1. A touch-sensitive device for scrolling a document on a display screen, said device comprising:
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a scrolling area extending along a longitudinal axis, the scrolling area having a width in a direction perpendicular to the longitudinal axis, and opposed first and second ends each having a distal end wherein the width of the scrolling area substantially enlarges or tapers along the longitudinal axis toward the first or second end from a central portion of the scrolling area for providing tactile feedback to a user prior to the user'"'"'s finger reaching either the first or second end of the scrolling area that the user'"'"'s finger is approaching one of the first and second ends; tactile feedback means being located on or proximate to the scrolling area between the distal ends, wherein the tactile feedback provided to the user is indicative of how close the user'"'"'s finger is to one of the first and second ends prior to the user'"'"'s finger reaching the one of the first and second ends while inside the scrolling area, wherein the scrolling area is configured to sense movement of the user'"'"'s finger on the scrolling area along the longitudinal axis and cause the document to be moved relative to the display screen in tandem with the movement of the user'"'"'s finger, wherein the tactile feedback means is located on an outer surface on the scrolling area, wherein the tactile feedback means includes surface texture on the outer surface of the scrolling area, and wherein the tactile feedback means includes discrete surface texture changes on the outer surface of the scrolling area spaced apart along the longitudinal axis so that each discrete surface texture change is indicative of a relative position along the longitudinal axis between the first and second ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A touch-sensitive device implemented in a keyboard, said keyboard having a housing and an alphanumeric section, said device comprising:
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a scrolling area extending along a longitudinal axis, the scrolling area having a width in a direction perpendicular to the longitudinal axis, the scrolling area being configured to sense movement of a user'"'"'s finger on the scrolling area along the longitudinal axis and generate signals causing a processor to scroll a document up or down relative to a display screen in tandem with the sensed movement of the user'"'"'s finger, wherein the scrolling area has opposed first and second ends relative to the longitudinal axis, each of the first and second ends having a distal end, wherein the width of the scrolling area substantially enlarges or tapers along the longitudinal axis toward the first or second end from a central portion of the scrolling area for providing tactile feedback to the user prior to the user'"'"'s finger reaching either the first or second end to indicate that the user'"'"'s finger is approaching one of the first and second ends, wherein the width of the scrolling area at the first and second ends differs from the width at the central portion of the scrolling area, wherein the scrolling area'"'"'s width at the central portion is substantially less than or greater than the enlarged scrolling area width or the tapered scrolling area width, respectively; and one or more tactile feedback elements located on or proximate to the scrolling area between the distal ends, the one or more tactile feedback elements being configured to provide a user tactile feedback prior to the user'"'"'s finger reaching either the first or second end of the scrolling area, wherein the tactile feedback provided to the user is indicative of how close the user'"'"'s finger is to one of the first and second ends prior to the user'"'"'s finger reaching the one of the first and second ends while inside the scrolling area, wherein the one or more tactile feedback elements are incorporated as part of a boundary transition region between the keyboard housing and the scrolling area, such that the one or more tactile feedback elements include at least one of;
a contoured edge of the boundary transition region, and a protrusion or groove positioned along the edge of the boundary transition region, andwherein the scrolling area is located along a left or right edge of the alphanumeric section. - View Dependent Claims (12)
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Specification