Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2002-07-16
2008-03-04
To, Doris H. (Department: 2616)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
Reexamination Certificate
active
07339890
ABSTRACT:
An ATM network traffic shaper is implemented in hardware. The traffic shaper shapes transmit data on one or more virtual circuits (VCs) according to the specified quality of service (QoS) parameters. Thus, the traffic shaper provides for the delivery of associated data cells in accordance with the specified QoS parameters. The traffic shaper is scalable in that the number of supported VCs can be increased with a relatively small increase in the size of the device and associated logic gates. The traffic shaper supports constant bit rate (CBR), variable bit rate (VBR), and unknown bit rate (UBR) service types and generates cell transmit requests with zero cell delay variation (CDVT). The traffic shaper also provides very high resolution in terms of bit rate specification. Varying shaping resolutions are achieved by varying a shaping interval time (SIT) generated by a SIT counter.
REFERENCES:
patent: 6044060 (2000-03-01), Jones
patent: 6483839 (2002-11-01), Gemar et al.
patent: 7117963 (2007-02-01), Burns et al.
patent: 2003/0031131 (2003-02-01), Bottiglieri et al.
patent: 2003/0147349 (2003-08-01), Burns
Broadcom Corporation
Grey Christopher
Sterne Kessler Goldstein & Fox PLLC
To Doris H.
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