RECONFIGURABLE KEYPAD METHOD IN HANDSET DEVICE OPERABLE WITH PLURAL SUBSYSTEMS
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United States of America Patent
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Issued Date -
Nov 13, 2008
app pub date -
Nov 21, 2007
filing date -
May 8, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A user input device is provided that permits multiple functions to be implemented in a confined space using key images defined by a reconfigurable backlight structure under automatic software control. The keypads change automatically depending on what the user is doing with the device. By selectively illuminating one of several key images at each key location, widely varying keypad functionality can be realized without increased the size of the keypad or the number of key locations.
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