The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2003
Filed:
Sep. 19, 2001
Aisin Seiki Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
A plurality of lamps to inclusive are supplied with a voltage one after another in sequence. A time duration during which the voltage is supplied to each of the lamps to inclusive is controlled in PWM fashion to restrict an amount of voltage supplied thereto. A current detect circuit portion solely detects all of the voltages supplied to the lamps to inclusive, respectively. Each of the voltages exceeds a threshold value, a dead band between two adjacent voltage supply durations. Thus, it is possible to restrict possible electromagnetic noises which are generated upon voltage supply to lamps to inclusive in a vehicular lamp control apparatus in which the lamps to inclusive are supplied with voltage from a high voltage battery