Vehicle rearview mirror system with protocol detection

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

Reexamination Certificate

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C340S461000, C340S463000

Reexamination Certificate

active

06992573

ABSTRACT:
A vehicular rearview mirror system suitable for use with a vehicle control, the vehicle control generating an output having a particular protocol representing a state of the output. The vehicle rearview mirror system includes a variable reflective element which assumes a partial reflectance level in response to a drive signal. The rearview mirror system further includes a mirror control that is responsive to the output of the vehicle control for generating at least one mirror control output. The at least one mirror control output includes a value for the drive signal. The mirror control determines the protocol of the output of the vehicle control including monitoring the output of the vehicle control in attempting to conclude a state of the output of the vehicle control.

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Commonly assigned U.S. Appl. No. 10/614,234, filed Jul. 7, 2003, entitled Light-Responsive Vehicle Control Such as an Electro-Optic Rearview Mirror System That is Adaptive to Vehicle Configuration.

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