Protocols and standards for USB peripheral communications
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United States of America Patent
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Oct 30, 2007
Grant Date -
Dec 16, 2004
app pub date -
Jun 11, 2003
filing date -
Oct 6, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A disclosed gaming machine is coupled to a plurality of 'USB gaming peripherals.' The USB gaming peripherals, which may include one or more peripheral devices, communicate with a master gaming controller using a USB communication architecture. The USB communication architecture may include a vendor-specific class protocol. The USB vendor-specific class protocol may comprise: 1) a base protocol for defining message handling relating to peripheral device functionality common to a plurality of peripheral devices; and 2) one or more feature-specific protocol extensions for defining message handling specific to a USB feature where each feature-specific protocol extension defines feature-specific messages. The base protocol may be designed such that when one of the feature-specific messages is modified, the base protocol does not change.
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