Phone line computer networking
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United States of America Patent
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Apr 20, 1999
Grant Date -
N/A
app pub date -
Jan 10, 1997
filing date -
Jan 10, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides for simultaneous local area networking and analog telephony using a single telephone line. The local area networking is carried out using two or more high-frequency modems, which when coupled to devices, can transfer data on high-frequency signals. These high-frequency signals may be carried on the telephone line along with the lower frequency signals used for analog telephony provided there is proper isolation. Thus, the invention utilizes selectively high-frequency bandpass and audio frequency bandpass filters coupled to the telephone line.
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