Method and system for conveying multiple calls on a single telephone line

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United States of America Patent

PATENT NO 6324167
SERIAL NO

09255969

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system for implementing multiple communication channels on a single twisted pair transmission line is disclosed. The system derives additional communication channels by way of a separate transceiver unit for each derived line. Each transceiver unit communicates in a separate predetermined frequency band. Each transceiver unit, upon connection to the transmission line, automatically utilizes the lowest unoccupied frequency band by monitoring each frequency band for the presence of signal power. Thus, as many derived lines as will be supported by the customer transmission loop can be readily added.

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Patent Owner(s)

Patent OwnerAddress
SBC PROPERTIES L P645 EAST PLUMB LANE RENO NV 89502

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Starr, Thomas J J Barrington, IL 36 438

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