Interface for switching plurality of pin contacts to transmit data line and plurality of pin contacts to receive data line to interface with serial controller
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United States of America Patent
Stats
-
Dec 23, 1997
Grant Date -
N/A
app pub date -
Jun 16, 1994
filing date -
Jun 16, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An analog interface for a PC module and an electronic device which communicate through a standard 68-pin PC card digital interface. The PC module includes a cellular phone radio and an analog modem that provides cellular communication capabilities to both a notebook computer and a telephone handset that includes a PC card slot. The PC module and the notebook computer have modified the standard 68-pin PC card interface, while remaining compliant with the standard interface, to enable voice applications in the notebook computer. The PC card interface is modified by reassigning pin assignments on the 68-pin connector through the use of a switch and audio lines in both the notebook computer and in the PC module. When the PC module is docked in the notebook computer, the switch in the notebook computer reassigns a set of pins on the 68-pin connector to the audio lines in the notebook, and the switch in the PC module reassigns the same set of pins to the audio lines in the PC module to allow voice applications on the notebook computer. When the PC module is docked in the telephone handset, the switch in the PC module reassigns a set of pins on the 68-pin connector to the audio lines in the PC module to allow cellular voice communications via the handset.
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