Pointing device enabling means, input device and portable...

Details Pointing device enabling means, input device and portable... Pointing device enabling means, input device and portable...

2003-04-16

2009-02-24

Lefkowitz, Sumati (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C345S157000, C345S167000, C341S033000

Reexamination Certificate

active

07495652

ABSTRACT:
The invention relates to means for enabling actuation of a pointing device and more particularly a means for detecting activity of a pointing device, so that the pointing is energized only when it needs to be in operation. The means include an activity sensor for sensing activation of the pointing device, said activity sensor comprising a threshold comparator, wherein the activity sensor is adapted to enable energization of the pointing device when the sensed activation of the pointing device exceeds a threshold. The pointing device is used for moving a pointer or prompt in a display, e.g. in mobile telephone. The present invention also relates to an input device with such a pointing device and a portable device incorporating same. The invention is directed to saving energy in portable devices avoiding accidental activation of the pointing device and automatic switching off to reduce the power consumption.

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