EP 3235349 B1 20210818 - BRIGHTNESS CONTROL FOR A LIGHT SIGNAL SYSTEM

Title (en)

BRIGHTNESS CONTROL FOR A LIGHT SIGNAL SYSTEM

Title (de)

HELLIGKEITSREGELUNG EINER LICHTSIGNALANLAGE

Title (fr)

RÉGULATION DE LUMINOSITÉ D'UNE INSTALLATION DE SIGNAUX LUMINEUX

Publication

EP 3235349 B1 20210818 (DE)

Application

EP 16702356 A 20160122

Priority

DE 102015203118 A 20150220
EP 2016051291 W 20160122

Abstract (en)

[origin: WO2016131605A1] The invention relates to a circuit arrangement (41, 41a, 41b, 41c, 41d) for adjusting the brightness of signal transmitters (43a, 43b, 43c) of a light signal system (40). The circuit arrangement (41, 41a, 41b, 41c, 41d) has a voltage supply interface (15) and a voltage conversion unit (14) for generating a carrier signal (SIG) by converting an electrical voltage (Vsupp) applied at the voltage supply interface (15) into an electrical voltage (Vsig) of a carrier signal (SIG). In addition, the circuit arrangement (41, 41a, 41b, 41c, 41d) has a control data receiving unit (46) for receiving a control signal, wherein the control signal (S) comprises information regarding a brightness to be adjusted of the light signal system (40). Furthermore, the circuit arrangement (41, 41a, 41b, 41c, 41d) has a modulation signal generating unit (44) for generating a modulation signal (MD) in accordance with the received control signal (S) and a modulator unit (45) for modulating the carrier signal (SIG) using the modulation signal (MD). The invention also relates to a light signal system (40). The invention further relates to a method (100) for adjusting the brightness of a light signal system (40).

IPC 8 full level

H05B 47/185 (2020.01)

CPC (source: EP)

H05B 47/185 (2020.01)

Citation (examination)

WO 2014060853 A1 20140424 - KONINKL PHILIPS NV [NL]
WO 2013061206 A2 20130502 - KONINKL PHILIPS ELECTRONICS NV [NL]
US 2006056855 A1 20060316 - NAKAGAWA MASAO [JP], et al
US 2008258695 A1 20081023 - KUMAR RASHMI [US], et al
US 2013009553 A1 20130110 - LEE CHUNG HOON [KR]
DE 102007047847 A1 20090604 - HUBER SIGNALBAU MUENCHEN [DE]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2016131605 A1 20160825; EP 3235349 A1 20171025; EP 3235349 B1 20210818

DOCDB simple family (application)

EP 2016051291 W 20160122; EP 16702356 A 20160122