Quarter-rate 2B1Q ISDN architecture with embedded differential delay compensation for extending range of DDS communications
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 26, 2002
Issued Date -
N/A
app pub date -
Jun 17, 1999
filing date -
Nov 7, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The transmission distance for DDS subscriber lines over a repeaterless four-wire link is extended to customer premises beyond the standard four-wire loop range of approximately 18 kft (56 kbps, 56 kbps with secondary channel capability, and 64 kbps) by employing commercially available ISDN transceiver chip hardware to multiplex a DDS data channel into quarter-rate (2B1Q) ISDN channels. At least one of a signalling channel and an out-of-band maintenance channel is used to convey differential delay compensation information, without modifying the framing structure of the transported channels, or requiring additional bandwidth for a separate framing channel.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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