UNIVERSAL SERIAL BUS HUB WITH SHARED HIGH SPEED HANDLER
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United States of America Patent
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app pub date -
Dec 22, 2008
filing date -
Feb 24, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device may include an upstream port and several downstream ports configured to transfer data at a different data transfer rate than the upstream port. The device may also include several downstream data handlers, each coupled to a respective one of the downstream ports, and an upstream data handler coupled to the upstream port. The data handlers are configured to implement a USB protocol. The upstream data handler is configured to store specific transactions (comprising data) received through the upstream port. Each respective downstream data handler is configured to access respective transactions of the stored specific transactions intended for the downstream port associated with the respective downstream data handler, and transmit to its associated respective downstream port the data comprised in its respective transactions. Accordingly, the upstream data handler is shared between the various downstream data handlers.
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