Selective bandwidth connectivity through network line cards

Details Selective bandwidth connectivity through network line cards Selective bandwidth connectivity through network line cards

1998-08-31

2010-11-30

Ngo, Ricky (Department: 2464)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S395200

Reexamination Certificate

active

07843898

ABSTRACT:
Public communication networks increasingly need to provide customers with a range of communication services, from baseband voice service, to computer data communications, to high speed digital data communications for multimedia and the like. Many such services would be blocked by existing telephone network line cards, which provide coding and decoding (CODEC) between analog and digital signals and process digital signals only at a relatively low, fixed bit rate. In accord with the invention, intelligent signal detection and control added to a line card selectively bypasses the CODEC and the associated connection to a time slot limited telephone exchange. The selective bypass connection provides a connection to an alternative network functionality capable of providing higher bandwidth digital services. In the preferred embodiment, the bypass provides a connection through an adaptive digital signal processor with a programmed controller. The digital signal processor provides coding and decoding functions, adapted to the particular communication service requested and the physical level signal protocol used over the customer's line. The digital signal processor also provides a two-way digital communication link to a relatively fast data switch, such as an edge device of an asynchronous transport mode (ATM) network. The data switch and associated data network provide a full range of digital communication services of various bandwidths or bit rates as may be requested by individual.

REFERENCES:
patent: 3567865 (1971-03-01), Chu et al.
patent: 4143242 (1979-03-01), Horiki
patent: 4472798 (1984-09-01), Hafer
patent: 5085913 (1992-02-01), Wong
patent: 5111497 (1992-05-01), Bliven et al.
patent: 5287348 (1994-02-01), Schmidt
patent: 5592475 (1997-01-01), Gliga et al.
patent: 5610910 (1997-03-01), Focsaneanu et al.
patent: 5692043 (1997-11-01), Gliga
patent: 5825868 (1998-10-01), Diamond
patent: 6035020 (2000-03-01), Weinstein et al.
patent: 6083280 (2000-07-01), Eitel
patent: 6163599 (2000-12-01), McHale
patent: 6259699 (2001-07-01), Opalka et al.
patent: 6314102 (2001-11-01), Czerwiec et al.
patent: 6480487 (2002-11-01), Wegleitner et al.
patent: 6760766 (2004-07-01), Sahlqvist
AT&T (now Lucent) Production Specification 235-900-111 of 1995.
AT&T (now Lucent) System Description 235-100-125 of 1995.
Applied Signal Technology, Model 330/330NT Digital Signal Distribution Unit.
National Semiconductor Corp. From POTS to ADSL, new Subscriber-Loop Technologies Deliver Bandwidth Closer to Home, pp. 1-5.
“Why Consider Using DSL?” p. 1.
Westell: Ansychronous Transfer Mode (ATM) over Asymmetric Digital Subscriber Line (ADSL) Tutorial, pp. 1-2.
FlexCap2 Rate Adaptive Digital Subscriber Line (RADSL), pp. 1-4.
Westell, Inc. Signs Agreement with Bell Atlantic to Supply ADSL Equipment, pp. 1-2.

Affiliated with

Also associated with

Rating

Selective bandwidth connectivity through network line cards does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective bandwidth connectivity through network line cards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective bandwidth connectivity through network line cards will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4195703