Vehicular automatic light control apparatus

Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C340S438000, C315S082000

Reexamination Certificate

active

07378753

ABSTRACT:
A headlight is turned on if an external illuminance value outside of the vehicle is equal to or lower than a first threshold value if the non-rainfall state is judged from windshield wiper activation, and is permitted to be turned on if the external illuminance value is equal to or lower than a second threshold value higher than the first predetermined illuminance value if the rainfall state is judged. When the vehicle is capable of being driven and the headlight is turned on, if an average illuminance value of the external illuminance value is equal to or higher than a predetermined value, then the second threshold value switches to the first threshold value. When the headlight is turned off, if the activation of the wiper has not been confirmed for a first predetermined period, then the second threshold value switches to the first threshold value.

REFERENCES:
patent: 5374852 (1994-12-01), Parkes
patent: 6218741 (2001-04-01), Braun et al.
patent: 6254259 (2001-07-01), Kobayashi
patent: 6343869 (2002-02-01), Kobayasi
patent: 7049950 (2006-05-01), Schmitt et al.
patent: 2004/0008110 (2004-01-01), Stam et al.
patent: 2005/0218723 (2005-10-01), Yamazaki et al.
patent: 197 56 574 A 1 (1998-10-01), None
patent: 199 22 735 A 1 (1999-12-01), None
patent: 1 555 157 (2005-07-01), None
patent: 60-163744 (1985-08-01), None
patent: 2000-168435 (2000-06-01), None
patent: 2004-103519 (2004-03-01), None
patent: 2005-289113 (2005-10-01), None
patent: WO 0140021 (2001-06-01), None
patent: WO 02/081260 (2002-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Vehicular automatic light control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicular automatic light control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicular automatic light control apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3986164

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.