Cordless communication system for a portable computer modem
First Claim
1. A radio pair for cordlessly connecting a portable computer modem to a telephone line, comprising:
- a base unit comprising;
a connection for a hard-wired telephone line; and
a first radio transceiver for transmitting and receiving computer data to/from a distant computer carried over the hard-wired telephone line; and
a remote unit comprising;
a telephone jack for connection to a portable computer modem, said telephone jack appearing to the portable computer modem to be the hard-wired telephone line; and
a second radio transceiver for transmitting and receiving the computer data to and from said first radio transceiver in said base unit, wherein the portable computer modem is cordlessly connected to the hard-wired telephone line.
3 Assignments
0 Petitions
Accused Products
Abstract
A cordless modem comprises a radio pair interfaced to a standard data/fax modem which allows a user of a personal computer to wirelessly connect to a telephone line. One end of the radio pair is a remote unit interfaced to the modem contained within the PC while the other end is a base unit connected to a standard telephone wall jack. This arrangement allows the user the convenience and freedom of using a PC, laptop, personal digital assistant, etc., within several hundred feet of a phone jack without being encumbered by a cord. A warning alarm on the remote unit informs the user when the signal strength between the radio pair is below a threshold value. Additionally, the base unit may be equipped with two spatially separated antennas to help mitigate the effects of signal fading.
83 Citations
18 Claims
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1. A radio pair for cordlessly connecting a portable computer modem to a telephone line, comprising:
a base unit comprising; a connection for a hard-wired telephone line; and a first radio transceiver for transmitting and receiving computer data to/from a distant computer carried over the hard-wired telephone line; and
a remote unit comprising;a telephone jack for connection to a portable computer modem, said telephone jack appearing to the portable computer modem to be the hard-wired telephone line; and a second radio transceiver for transmitting and receiving the computer data to and from said first radio transceiver in said base unit, wherein the portable computer modem is cordlessly connected to the hard-wired telephone line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cordless communication system for cordlessly connecting a portable computer modem to a hard-wired telephone line, comprising:
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a base unit for connection to a hard-wired telephone line and a remote unit having a telephone jack for connection to a portable computer modem; a first radio transceiver in said base unit; and a second radio transceiver in said remote unit for communicating with said first radio transceiver, said first radio transceiver for modulating a first analog signal from the hard-wired telephone line onto a frequency modulation carrier and for demodulating a second signal received from said second radio transceiver in said remote unit, and transmitting said second signal over the hard-wired telephone line, said second radio transceiver for modulating an analog signal from the portable computer modem on a frequency modulation carrier and for demodulating a signal received from said first radio transceiver in said base unit. - View Dependent Claims (16, 17, 18)
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Specification