Modularized functionality enhancement for a cellular telephone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 6, 2004
Grant Date -
N/A
app pub date -
Sep 18, 2000
filing date -
Sep 18, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cellular telephone has a processing circuit for controlling the operations of the cellular telephone, a keypad to provide input from a user, a display to provide visual output to the user, and an input/output (I/O) port electrically connected to the processing circuit. A peripheral module has a peripheral circuit for performing a peripheral function, a memory, and a connecting port for connecting the peripheral circuit and the memory to the I/O port of the cellular telephone. The memory of the peripheral module has a peripheral driver program for controlling operations of the peripheral circuit. After the connecting port of the peripheral module is electrically connected to the I/O port of the cellular telephone, the processing circuit executes the peripheral driver program so as to perform the peripheral function.
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Family
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