Scrolling and zooming of a portable device display with device motion

摘要

A portable computing device (10) with a display screen (26) that may be scrolled and/or zoomed in response to changes in the spatial orientation of the computing device. Changes in the spatial orientation of the computing device are sensed by accelerometers (20) contained in the device. Software converts signals sent by the accelerometers to scrolling or zooming commands that scroll and/or zoom the display screen. Motion of the computing device in the plane of the display screen of the computing device results in scrolling the display screen in the opposing direction of the motion of the computing device a distance greater than the distance the computing device is moved. Motion of the computing device perpendicular to the plane of the display screen zooms the display screen in or out. Motion of the computing device toward the user results in the display screen being zoomed in to reveal greater detail. Motion of the computing device away from the user results in the display screen being zoomed out to reveal more content.

主权项

1. A computing device, comprising: one or more display screens; means to detect some linear motion of the display screens; means to generate one or more motion signals corresponding to the detected linear motion; means to generate one or more time signals corresponding to the motion signals; one or more processors; memory; and one or more programs, wherein the programs are stored in the memory and configured to be executed by the processors, the programs comprising: some instructions for detecting the linear motion of the display screens in a direction of one or more axes of the display screens from the motion signals; instructions for determining some last motion values comprising one or more last velocities and/or one or more last displacements in the direction of one or more axes; instructions for determining one or more velocities substantially in the direction of one or more axes and one or more displacements substantially in the direction of one or more axes from the detected linear motion and the time signals and the last motion values; and instructions for changing the view of some content of one or more visible programs displayed on one or more portions of the display screens corresponding to the determined velocities and/or the determined displacements of display screens.