Method to reduce system bus load due to USB bandwidth reclamation
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United States of America Patent
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Feb 19, 2002
Issued Date -
N/A
app pub date -
Mar 2, 2000
filing date -
Nov 6, 1996
priority date (Note) -
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Abstract
A method and system for reducing system bus load due to bandwidth reclamation on a Universal Serial Bus. A device residing on a USB may not be able to accept or provide data at the maximum rate that such data can move over the USB. In such case, for bulk transfers and control transfers, the transactions are likely to be continually retried because reliable data delivery is guaranteed. This causes a drain on the system bus through put for transactions which cannot complete. By throttling the rate at which transfers to such devices occur, a significant reduction in the load on the system through put bus can be achieved.
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