Optics: image projectors – Composite projected image
Reexamination Certificate
2011-08-09
2011-08-09
Lee, John (Department: 2878)
Optics: image projectors
Composite projected image
C353S121000, C713S300000
Reexamination Certificate
active
07993006
ABSTRACT:
An information handling system powers a projector through a communication interface, such as a USB interface, by selectively enabling first or second power levels through the communication interface. Initially, the communication interface provides a first minimal power level to run a controller on the projector. The controller communicates with the information handling system to establish approval for power at a second level, such as by communicating an identifier or a power level to the information handling system. The projector approves a power draw at the second power level based upon information received from the information handling system. The projector draws power at a second level that is adequate to fully operate the projector for presentation of visual images.
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http://www.usbpluspower.org/-USBPlusPowerTechnology Plus Power. “Universal Serial Bus” USBIF, 1999, 26 pg.
D'Alessio Samuel Nicklaus
Sultenfuss Andrew T.
Dell Products L. P.
Hamilton & Terrile LLP
Holland Robert W.
Lee John
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