Multiplex communications – Channel assignment techniques – Only active channels transmitted
Reexamination Certificate
2005-04-26
2005-04-26
Pezzlo, John (Department: 2662)
Multiplex communications
Channel assignment techniques
Only active channels transmitted
C370S395200, C370S421000, C725S063000
Reexamination Certificate
active
06885675
ABSTRACT:
An apparatus for an asymmetric data connection comprises a head end router which may be coupled to an ATM PVC, a PSTN modem coupled to the head end router, a plurality of downstream routers each couplable to the ATM PVC via respective ATM interfaces, and a plurality of downstream PSTN modems each coupled to a respective downstream router via a respective serial interface. Each ATM interface of each respective downstream router is allocated, in use, a respective IP address in a single subnet. Each serial interface of each respective downstream router is allocated in use, a respective IP address in a single subnet. A method of establishing an asymmetric data connection is also described.
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British Telecommunications public limited company
Nixon & Vanderhye P.C.
Pezzlo John
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