Control of the intensity of a LED lighting system

US8941311B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8941311-B2
Application numberUS-201313859350-A
CountryUS
Kind codeB2
Filing dateApr 9, 2013
Priority dateApr 9, 2013
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  2. Abstract

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Abstract

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There is described a system and method for controlling the intensity of a lighting system for vehicles comprising light emitting diodes mounted on printed circuit boards (PCBs). The method comprises sending a first modulation signal to the lighting modules from a master controller upon detection of a presence of power from a power source by the master controller; and sending a second modulation signal to the lighting modules from the master controller upon detection of an absence of power from a power source by the master controller. The first modulation signal corresponds to a first LED intensity and the second modulation signal corresponds to a second LED intensity lower than the first light intensity.

First claim

Opening claim text (preview).

The invention claimed is: 1. A lighting system connected to a power source, the lighting system comprising: lighting modules connected end-to-end and forming a row having a first line end a second line end, each lighting modules comprising light emitting diodes (LEDS); and a master controller electrically connected to the first line end, the master controller adapted to being powered by the power source, the master controller being operative to control an intensity of the LEDs b…

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What does patent US8941311B2 cover?
There is described a system and method for controlling the intensity of a lighting system for vehicles comprising light emitting diodes mounted on printed circuit boards (PCBs). The method comprises sending a first modulation signal to the lighting modules from a master controller upon detection of a presence of power from a power source by the master controller; and sending a second modulation…
Who is the assignee on this patent?
Bombardier Transp Gmbh
What technology area does this patent fall under?
Primary CPC classification H02J9/065. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).