Handheld wireless communication device
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United States of America Patent
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Jun 11, 2013
Grant Date -
Nov 1, 2007
app pub date -
Feb 6, 2007
filing date -
Jun 21, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A handheld wireless communication device cradleable in one hand by an operator during text entry. A display, key field and trackball are all located on a front face of the device. Alphanumeric input keys include several alphabetic keys with letters arranged in a traditional (QWERTY), but non-ITU Standard E.161 telephone letter layout. A microprocessor is provided that receives operator commands from the keys and the trackball navigation tool and which affects corresponding changes to the display based on user input. The keys of the key field are arranged in rows and columns and at least one of the rows and columns is arranged with a long axis thereof radially oriented relative to the trackball navigation tool.
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