Wireless data communication system using a microphone/headphone jack of a portable phone
First Claim
1. A wireless data communication system, comprising:
- a computer modem;
a microphone jack and a discrete headphone jack for a portable computer;
a portable phone having a microphone/headphone jack;
an interface module transmitting electrical signals by electrically connecting transmission and reception ports of said computer modem to different ones of said microphone jack and said headphone jack; and
a cable coupling said microphone jack and said headphone jack to said microphone/headphone jack of said portable phone.
4 Assignments
0 Petitions
Accused Products
Abstract
A wireless data communication system using a microphone/headphone jack of a portable phone. The system may be constructed with a computer modem; a microphone jack and a headphone jack of a portable computer; a portable phone having said microphone/headphone jack; and an interface module which transmits signals by electrically connecting said computer modem and said microphone/headphone jack of said portable phone. A dedicated cable for interfacing the modem and the portable phone is unnecessary, a private protocol for wireless communication is unnecessary, and the private protocol does not need to be previously written into a random access memory when the data of the portable computer is transmitted/received by wireless using the portable phone. The interface module circuit between the computer modem and the portable phone is simplified, by using less cables, and an existing jack may be used for coupling the modem and the portable telephone.
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Citations
24 Claims
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1. A wireless data communication system, comprising:
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a computer modem; a microphone jack and a discrete headphone jack for a portable computer; a portable phone having a microphone/headphone jack; an interface module transmitting electrical signals by electrically connecting transmission and reception ports of said computer modem to different ones of said microphone jack and said headphone jack; and a cable coupling said microphone jack and said headphone jack to said microphone/headphone jack of said portable phone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless data communication system, comprising:
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an electrically conducting cable comprised of a first electrical conductor and a second electrical conductor, with a first terminal of said first electrical conductor being plug coupleable to an external side of a microphone port of a microprocessor driven appliance, with a first terminal of said second electrical conductor being plug coupleable to an external side of a headphone port of the appliance, and with second terminals of said first electrical conductor and said second electrical conductor being plug coupleable to an external side of a microphone/headphone port of a wireless telephone; a differential amplifier generating a first data signal based upon differentials occurring between input ports of said differential amplifier connectable across two discrete output terminals of a modem providing data communication with the microprocessor driven appliance; a regulator connected to said differential amplifier to provide a first regulated signal by modifying gain of said first data signal; a transmission buffer connectable to transmit said first regulated signal to an internal side of the microphone port; a reception buffer connectable to receive a data signal to an internal side of the headphone port; and a gain modulator connected to provide a second regulated signal to a receiver port of the modem by modulating gain of said data signal. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A wireless data communication system, comprising:
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a computer having a microphone jack, a headphone jack, a modem and an interface module, wherein said interface module transmits electrical signals between said microphone jack and said modem, and between said headphone jack and said modem; said interface module comprising; a differential amplifier connected to said modem; a transmission gain regulator connected to said differential amplifier; a transmission matching stage connecting said transmission gain regulator to said microphone jack; a reception matching stage attached to said discrete headphone jack; and a reception gain regulator connecting said reception matching means to said modem; and a cable for coupling said microphone jack and headphone jack of said computer to a microphone/headphone jack of a portable telephone.
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21. A wireless data communication system, comprising:
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a computer modem providing a transmission port, a reception port, and a dedicated modem port; a microphone jack exposed through a first port of a portable computer; a headphone jack exposed through a second port of the portable computer; an interface module transmitting data signals by operationally connecting said transmission port and a reception port of said computer modem to different ones of said microphone jack and said headphone jack, said interface module comprising; a differential amplifier connected to said transmission port of said computer modem; a first amplifier connecting said differential amplifier to said microphone jack; a second amplifier coupling said headphone jack to said reception port of said computer modem; and a cable operationally coupling said microphone jack and said headphone jack to a microphone/headphone jack of a portable telephone. - View Dependent Claims (22, 23, 24)
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Specification