Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture
Reexamination Certificate
2006-05-16
2006-05-16
Dang, Khanh (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus interface architecture
C726S022000
Reexamination Certificate
active
07047343
ABSTRACT:
Integrated pointing device and integrated keyboard inputs are accepted at a microcontroller that formats the inputs to the HID protocol and embeds the HID formatted inputs into SMBus messages for transfer over an SMBus to processing components of an information handling system. A state machine at the information handling system motherboard extracts the HID packets from the SMBus messages and provides the HID packets to HID registers for use by processing components. Keyboard and pointing device inputs communicated from integrated devices through an SMBus may be treated as trusted data separate from non-trusted inputs through external devices and buses.
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Dang Khanh
Dell Products L.P.
Hamilton & Terrile LLP
Holland Robert W.
Spittle Matthew
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