Power management and device illumination mechanisms for a personal digital assistant
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 27, 2004
Grant Date -
N/A
app pub date -
Apr 2, 2002
filing date -
Apr 2, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
According to one embodiment, a handheld device is disclosed. The handheld device includes a housing, a display mounted within the housing, and a light sensor mounted within the housing to detect light beams through the display. In a further embodiment, the handheld device includes a plurality of keypads mounted on the housing, and an electro luminescent (EL) sheet. The EL sheet is mounted within the housing below the display and the keypads, and illuminates the display and keypads whenever the handheld device is in a dark environment. In yet another embodiment, the handheld device includes a thumbwheel. The EL sheet or an LED illuminates the thumbwheel whenever the handheld device is in a dark environment.
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