Automatic rapid switching between DSL service and POTS over...

Details Automatic rapid switching between DSL service and POTS over... Automatic rapid switching between DSL service and POTS over...

2007-09-18

2007-09-18

Woo, Stella (Department: 2614)

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

C379S093080, C379S093280

Reexamination Certificate

active

10434847

ABSTRACT:
The preferred embodiments of the present invention generally provide improved communications over a subscriber loop that is loaded with at least one and potentially a plurality of load coils. The preferred embodiments of the present invention will support digital subscriber line service over loaded subscriber loops that also support a native POTS interface and offer various techniques for advantageously arbitrating use of the 0-4 KHz baseband between POTS and DSL. Furthermore, the rapid start and stop DSL modulation techniques as well as various mechanisms such as protocol spoofing allow DSL service to appear to be always-on for many end user applications even though DSL communication may cease for POTS signaling messages and completed POTS telephone calls.

REFERENCES:
patent: 4757495 (1988-07-01), Decker et al.
patent: 4995074 (1991-02-01), Goldman et al.
patent: 6026120 (2000-02-01), Betts
patent: 6061392 (2000-05-01), Bremer et al.
patent: 6307893 (2001-10-01), Bremer et al.
patent: 6324212 (2001-11-01), Jenness
patent: 6324268 (2001-11-01), Balachandran et al.
patent: 6408056 (2002-06-01), Bremer et al.
patent: 6414964 (2002-07-01), Holmquist et al.
patent: 6522730 (2003-02-01), Timm et al.
patent: 6546090 (2003-04-01), Bremer et al.
patent: 6580785 (2003-06-01), Bremer et al.
patent: 6658096 (2003-12-01), Bremer et al.
patent: 6715124 (2004-03-01), Betts
patent: 6829292 (2004-12-01), Shenoi
patent: 2002/0141569 (2002-10-01), Norrell et al.
patent: 2003/0039348 (2003-02-01), Bremer et al.
ITU-T G.992.2; Splitterless Asymmetric Digital Subscriber Line (ADSL) transceivers; International Telecommunication Union; Jun. 1999; pp. 1-174.
ITU-T V.34; A modem operating at data signalling rates of up to 33,600 bit/s for use on the general switched telephone network and on leased point-to-point 2-wire telephone-type circuits; International Telecommunication Union; Feb. 1998; pp. i-iv, 1-72.
T1E1.4/2002-85; Performance of LE-ADSL on modified loaded loops longer the 18 kft; 2Wire, Inc.; Feb. 18-22, 2002; pp. 1-6.
T1E1.4/2002/86; LE-ADSL on modified loaded loops longer than 18kft; 2Wire, Inc., Feb. 18-22, 2002, pp. 1-3.
IEEE Communications Magazine, Dec. 1996; The V.34 High-Speed Modem Standard; G. David Fomey, Jr., Less Brown, M. Vedat Eyuboglu, and John L. Moran, III; Dec. 1996; pp. 28-33.
ISBN 0070055920; The V Series Recommendations: Standards for Data Communications over the Telephone Network, Second Edition; Uyless Black; Copyright 1995; Chapter 5: The Voice-Band Modems Recommendation s—pp. 81-109.

Affiliated with

Also associated with

Rating

Automatic rapid switching between DSL service and POTS over... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic rapid switching between DSL service and POTS over..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic rapid switching between DSL service and POTS over... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3765472