Interior rearview mirror system with compass

Details Interior rearview mirror system with compass Interior rearview mirror system with compass

2008-02-11

2009-02-17

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Mirror

C359S877000

Reexamination Certificate

active

07490944

ABSTRACT:
An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly, a casing having a reflective element, a compass sensor and a control. The compass sensor is disposed within the mirror casing and has a first magnetoresponsive sensing element and a second magnetoresponsive sensing element. The control receives a first signal indicative of a magnetic field sensed by the first magnetoresponsive sensing element and a second signal indicative of a magnetic field sensed by the second magnetoresponsive sensing element. The control determines that the casing is adjusted by an occupant of the vehicle in response to a change in the first and second signals being indicative of an abrupt movement of the casing about the mounting structure by an occupant of the vehicle. The control is operable to enter a rapid compensating mode to compensate for the mirror adjustment.

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