Phantom data link for digital transmission lines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 10, 1996
Grant Date -
N/A
app pub date -
Mar 2, 1992
filing date -
Mar 2, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An out of band data link for performance monitoring information using existing telecommunications transmission facilities. The Bell telephone network includes a variety of central offices and network interface units that should communicate with each other regarding performance. The data link allows the network interface unit to advise the telephone company's central office of difficulties. A first modem is interconnected between a pair of simplex leads in the central office telephone company's central office repeater transformers, and a second modem is interconnected between a pair of simplex leads in the network interface unit's transformers. The voltage between each pair of leads is used to effect communication between the telephone company's central office and the network interface unit. Accordingly existing cables can continued to be dedicated to the transmission of payload, rather than requiring the capacity of the cables to be reduced so that the network interface unit can transmit performance data to the central office.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully