Automatic scrolling speed control by tracking user's eye
AssigneeKYOCERA Corporation
InventorKensaku TANAKA
Life of this patent
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Abstract
According to an aspect, an information display device includes a display unit, a visual line detector, and a control unit. The display unit displays information in a scroll region, which is provided in at least a part of a screen of the display unit, while scrolling the information. The visual line detector detects a visual line position of an operator with respect to the scroll region. The control unit controls a scroll speed, at which the information is scrolled in the scroll region, based on the visual line position detected by the visual line detector.
Claims20
An information display device, comprising:
- a display unit configured to display information in a scroll region, which is provided in at least a part of a screen of the display unit, while scrolling the information;
- an acceleration sensor configured to detect an acceleration applied to the information display device;
- and
- a control unit configured to control a scroll speed, at which the information is scrolled in the scroll region, based on the acceleration detected by the acceleration sensor,
- wherein upon a determination, based on the acceleration detected by the acceleration sensor, that a user of the information display device is walking, the control unit is configured to
- decelerate the scroll speed, and
- continue to scroll the information at the decelerated scroll speed which is greater than zero,
- wherein upon a determination, based on the acceleration detected by the acceleration sensor, that the user of the information display device stops, the control unit is configured to accelerate the scroll speed, and
- wherein the accelerated scroll speed upon the determination that the user stops is faster than the decelerated scroll speed upon the determination that the user is walking.
A scroll control method executed by a device that includes a display unit for displaying information, and an acceleration sensor for detecting an acceleration applied to the device, the scroll control method comprising:
- scrolling information in a scroll region of the display unit;
- and
- controlling a scroll speed, at which the information is scrolled in the scroll region, based on the acceleration detected by the acceleration sensor,
- wherein said controlling comprises
- decelerating the scroll speed but without stopping scrolling the information upon a determination, based on the acceleration detected by the acceleration sensor, that a user of the device is walking, and
- accelerating the scroll speed upon a determination, based on the acceleration detected by the acceleration sensor, that the user of the device stops, and
- wherein the accelerated scroll speed upon the determination that the user stops is faster than the decelerated scroll speed upon the determination that the user is walking.
Dependencies are inferred from the claim text.