Motion activated cell phone lighting

Details Motion activated cell phone lighting Motion activated cell phone lighting

2007-07-31

2010-12-21

Nguyen, Lee (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Having particular housing or support of a transceiver

C455S566000, C455S567000

Reexamination Certificate

active

07856214

ABSTRACT:
A cell phone includes at least one motion switch and circuitry to control cell phone functions when the cell phone is moved. In one embodiment, the motion switch activates keyboard backlighting. A single motion switch may be used or two motion switches may be positioned approximately orthogonally, for example, a first motion switch to activate on motion along the cell phone's length, and a second motion switch to activate on motion along the cell phone's width. One simple and inexpensive motion switch is a cantilevered spring, another is to monitor current produced by a vibrator motor already present in a cell phone. The cell phone according to the present invention with lighting activated by cell phone motion is particularly useful for locating a dropped cell phone, and even more useful for a vehicle operator searching for a dropped cell phone.

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patent: 7187952 (2007-03-01), Lin
patent: 2008/0030360 (2008-02-01), Griffin

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