Vehicle rearview mirror and a vehicle control system...

Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile

Reexamination Certificate

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Details

C359S602000, C359S604000, C701S049000

Reexamination Certificate

active

06291905

ABSTRACT:

The present invention relates to a vehicle rearview mirror and a vehicle control system incorporating such mirror.
According to the present invention there is provided a vehicle rearview mirror comprising a mirror housing containing a variable reflectivity mirror unit and a microcontroller for controlling the reflectivity of the mirror unit.
There is also provided, as a further independent invention, a vehicle control system comprising a rearview mirror housing, a variable reflectivity mirror unit mounted in the mirror housing, a master microcontroller mounted in the mirror housing for controlling the reflectivity of the mirror unit, a roof housing positioned on the interior roof of the vehicle, a slave microcontroller mounted in the roof housing and connected to the master microcontroller, and at least one input and/or output device connected to the slave microcontroller.
There is also provided, as a further independent invention, a vehicle control system comprising a network controlling a plurality of functions of the vehicle, the network having a node located in a rearview mirror housing of the vehicle, such node controlling at least one function of the mirror.
There is also provided, as a further independent invention, apparatus for controlling an optical characteristic of a vehicle component in accordance with the duty cycle of a pulse width modulated signal.


REFERENCES:
patent: 5455716 (1995-10-01), Suman et al.
patent: 5659423 (1997-08-01), Schierbeek et al.
patent: 5796176 (1998-08-01), Kramer et al.
patent: 5798575 (1998-08-01), O'Farrell et al.
patent: 5877897 (1999-02-01), Schoefield et al.
patent: 5959367 (1999-09-01), O'Farrell et al.
patent: WO 9914619 (1999-03-01), None
Commonly assigned co-pending, U.S. Patent Application, Serial No. 09/353,026, filed Jul. 13, 1999 by Eric J. Hoekstra et al. for Digital Electrochromic Mirror System.
Commonly assigned co-pending U.S. Patent Application, Serial No. 09/519,767, filed Mar. 6, 2000 by Eric J. Hoekstra et al. for Digital Electrochromic Mirror System.
Commonly assigned, co-pending U.S. patent application filed Mar. 20, 2000 by Kenneth L. Schierbeek for Digital Electrochromic Mirror System (Attorney Docket No. DON01 p. 808).
Co-pending U.S. application, No. 08/832,380, Kenneth L. Schierbeek, filed Apr. 2, 1997, for Digital Electrochromic Mirror System.

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