Central office line card with code recognition for...

Details Central office line card with code recognition for... Central office line card with code recognition for...

2006-02-07

2006-02-07

Pham, Brenda (Department: 2664)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S468000

Reexamination Certificate

active

06996091

ABSTRACT:
A linecard (175) permits an increased rate connection between a subscriber (15) and a service provider (40) over the PSTN (50) includes an analog interface (152) a digital interface (165) coupled to the digital backplane (170) to the service provider's host server (34), a conversion circuit (258) interspersed between the analog interface (152) and the digital interface (165), and a linecard microcontroller (300) configured to request bandwidth on the backplane (170) A linecard (175) incorporates a codec (250) with a code recognition mechanism (200) to monitor the Pulse Code Modulated (PCM) input from the provider. The code recognition mechanism (200) provides a way to dynamically allocate and deallocate timeslots on the backplane (170).

REFERENCES:
patent: 6128300 (2000-10-01), Horton
patent: 6298065 (2001-10-01), Dombkowski et al.
patent: 6411618 (2002-06-01), Quiring et al.
patent: 6421355 (2002-07-01), Quiring et al.

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