Computer system which provides analog audio communication between a PC card and the computer's sound system
First Claim
1. A computer system which has improved audio communication between a sound system comprised in the computer system and a removable PC Card coupled to the computer system, comprising:
- a sound system;
a bus;
a PC Card bus adapter coupled to said bus;
a PC Card socket coupled to said PC Card bus adapter, wherein said PC Card socket is for receiving one or more PC Cards, wherein said PC Card socket includes a plurality of pins;
a multiplexer coupled to one or more of said pins in said PC Card socket, wherein said multiplexer is also coupled to said PC Card bus adapter and said sound system, wherein said multiplexer selects either a first path between said one or more pins and said PC Card bus adapter or a second path between said one or more pins and said sound system;
a PC Card for insertion in said PC Card socket, wherein when said PC Card is inserted into said PC Card socket, said multiplexer can select said second path between said one or more pins and said sound system to provide analog audio communication between said PC Card and said sound system.
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Accused Products
Abstract
A computer system including a PC Card or PCMCIA socket receiving a PC Card modem, wherein the PC Card modem communicates analog audio information to/from the computer'"'"'s sound system. The present invention also comprises a PC Card modem s which is compatible with the PCMCIA specification and which includes telephone answering device and full-duplex speakerphone capabilities. The computer system and PC Card modem of the present invention utilize one or more pins of the PCMCIA connector for analog audio communication between the computer'"'"'s sound system and the modem. According to the present invention, the PC Card modem uses the digital SPKR pin to provide analog audio signals from the modem to the computer sound system, and uses a reserved-for-future-use (RFU) pin, preferably pin 57, to provide analog audio from the sound system to the modem. In an alternate embodiment, the PCMCIA modem uses the high order address pins of the PCMCIA connector for input and output analog audio instead of the SPKR and RFU pins.
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Citations
20 Claims
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1. A computer system which has improved audio communication between a sound system comprised in the computer system and a removable PC Card coupled to the computer system, comprising:
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a sound system; a bus; a PC Card bus adapter coupled to said bus; a PC Card socket coupled to said PC Card bus adapter, wherein said PC Card socket is for receiving one or more PC Cards, wherein said PC Card socket includes a plurality of pins; a multiplexer coupled to one or more of said pins in said PC Card socket, wherein said multiplexer is also coupled to said PC Card bus adapter and said sound system, wherein said multiplexer selects either a first path between said one or more pins and said PC Card bus adapter or a second path between said one or more pins and said sound system; a PC Card for insertion in said PC Card socket, wherein when said PC Card is inserted into said PC Card socket, said multiplexer can select said second path between said one or more pins and said sound system to provide analog audio communication between said PC Card and said sound system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17, 18)
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13. A computer system which has improved audio communication between a sound system comprised in the computer system and a removable PC Card coupled to the computer system, comprising:
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a sound system; a bus; a PC Card bus adapter coupled to said bus; a PC Card socket coupled to said PC Card bus adapter, wherein said PC Card socket is for receiving one or more PC Cards, wherein said PC Card socket includes a plurality of pins, said plurality of pins including one or more high address pins defined for transmitting address signals; a multiplexer coupled to said one or more high address pins in said PC Card socket, wherein said multiplexer is also coupled to said PC Card bus adapter and said sound system, wherein said multiplexer selects either a first path between said one or more high address pins and said PC Card bus adapter or a second path between said one or more high address pins and said sound system; a PC Card for insertion in said PC Card socket, wherein when said PC Card is inserted into said PC Card socket, said multiplexer can select said second path between said one or more high address pins and said sound system to provide analog audio communication between said PC Card and said sound system. - View Dependent Claims (14, 15, 16, 19, 20)
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Specification