System for controlling AAL1 cell bandwidth

Details System for controlling AAL1 cell bandwidth System for controlling AAL1 cell bandwidth

2005-03-29

2005-03-29

Cangialosi, Salvatore (Department: 3621)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S395600, C370S474000

Reexamination Certificate

active

06873621

ABSTRACT:
A system for controlling a bandwidth when receiving and reassembling a consecutive data stream transferred while segmented by AAL1 format cells which enables correct determination of non-P and P formats and reassembly of cells even when error arises in multiple bits including the CSI bit of an AAL1 cell or when adding dummy cells and thereby enabling prevention of a gap in data in a frame, comprising, in a data reassembly unit which reassembles received cells, an 8-cell buffer for storing 8 cells of a cycle of a sequence count (SC) of 0 to 7 and sending the cells out to a later stage after a check unit of a sequence number (SN) field confirms normalcy of the cells and a control unit for control so that the number of P format cells stored in the 8-cell buffer becomes 1 cell when 8 cells are stored in the 8-cell buffer.

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patent: 6667978 (2003-12-01), Delp et al.
patent: 09205434 (1997-08-01), None

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