Vehicle rearview mirror system

Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile

Reexamination Certificate

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Details

C359S602000, C359S604000, C701S049000

Reexamination Certificate

active

06515378

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 (1999-03-01), Schofield et al.
patent: 5959367 (1999-09-01), O'Farrell et al.
patent: 6056410 (2000-05-01), Hoekstra et al.
patent: 6089721 (2000-07-01), Schierbeek
patent: 6210008 (2001-04-01), Hoekstra et al.
patent: 6291905 (2001-09-01), Drummond et al.
patent: 6299315 (2001-10-01), Hoekstra et al.
patent: 6305807 (2001-10-01), Schierbeek
patent: 6406152 (2002-06-01), Hoekstra et al.
patent: WO9914619 (1999-03-01), None
Commonly assigned, co-pending U.S. patent application, Ser. No. 10/173,479, filed Jun. 17, 2002 by Applicants Eric J. Hoekstra and Kenneth L. Schierbeek, entitled Digital Electrochromic Mirror System. (DON01 P-980).
Commonly assigned, co-pending U.S. patent application, Ser. No. 09/952,693, filed Sep. 12, 2001 by Applicant Kenneth L. Schierbeek, entitled Digital Electrochromic Mirror System. (DON01 P-923).
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).

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