Multiplex communications – Channel assignment techniques – Adaptive selection of channel assignment technique
Reexamination Certificate
2006-02-07
2006-02-07
Duong, Frank (Department: 2666)
Multiplex communications
Channel assignment techniques
Adaptive selection of channel assignment technique
C370S468000, C375S222000
Reexamination Certificate
active
06996118
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: 5982768 (1999-11-01), Bellenger et al.
patent: 6002684 (1999-12-01), McVerry
patent: 6400769 (2002-06-01), Gatherer et al.
patent: 6411618 (2002-06-01), Quiring et al.
patent: 6421355 (2002-07-01), Quiring et al.
Zarlink Semiconductor, Subscriber Line Interface for Digital Switching Systems, Application Note, pp. 149-166, 1995.
Gatherer Alan
Quiring Keith L.
Brady III W. James
Duong Frank
Moore J. Dennis
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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