Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2003-07-08
2010-06-08
Harper, Kevin C (Department: 2462)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S428000
Reexamination Certificate
active
07733878
ABSTRACT:
The present invention is directed to methods and systems for implementing a DMA scheduling mechanism and a DMA system for transmission from fragmented buffers. According to an aspect of the present invention, a processor controls several devices via a polled interface to interleave DMA data transfers on different Input/Output (I/O) ports in an efficient manner. According to another aspect of the present invention, a system for handling transmission of network packets which are assembled from multiple memory buffers with different octet alignments is provided. The hardware/software combination allows efficient joining of packet fragments with differing octet alignments when the underlying memory system is word based, and further allows insertion of other data fields generated by a processor.
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International Search Report.
Holland Chris
Knight Brian
Milway David
Brooktree Broadband Holdings, Inc.
Chan Sai-Ming
Harper Kevin C
Thomas Kayden Horstemeyer & Risley LLP
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