System for multiplexing pins of a PC card socket and PC card bus adapter for providing audio communication between PC card and computer sound system
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United States of America Patent
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-
May 12, 1998
Issued Date -
N/A
app pub date -
Oct 17, 1995
filing date -
Jun 29, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer system including a PC Card socket or PCMCIA socket receiving a PC Card, wherein the PC Card socket communicates digital audio information to/from the computer's sound system. The present invention also comprises a PC Card ISDN terminal adapter which is compatible with the PCMCIA specification and which includes telephone answering device and full-duplex speakerphone capabilities. The computer system and PC Card of the present invention utilize one or more pins of the PCMCIA connector for digital audio communication between the computer's sound system and the PC Card. According to the present invention, the PC Card modem uses one or more high address pins to provide digital audio signals between the PC Card and the computer sound system.
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