US Patent Application No: 2012/0086,354

Number of patents in Portfolio can not be more than 2000

GENERATION FROM PHASE CUT DIMMER OUTPUT WITH FAST RESPONSE TO CHANGES IN DIMMER POSITION

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Abstract

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A circuit for a dimmer system is disclosed, in which a phase-cut dimmer output signal is converted to a dimming control level signal. The phase-cut dimmer output signal is used to generated a pulse modulated signal indicative of the duty cycle of the phase cut dimmer output signal, and the pulse modulated signal is directly converted to a piece-wise linear dimming control level signal. By directly converting the pulse modulated signal to a piece-wise linear dimming control level signal, no further processing is necessary to produce a dimming signal which closely resembles the ideal logarithmic response of the human eye.

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Patent Owner(s)

  • NXP B.V.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daniel, Bobby Jacob Eindhoven, NL 5 10
Langeslag, Hinderikus Maria Wilhelmus Wijchen, NL 1 0

Cited Art Landscape

Patent Info (Count) # Cites Year
 
CIRRUS LOGIC, INC. (1)
* 7,667,408 Lighting system with lighting dimmer output mapping 32 2007
 
LEMNIS LIGHTING IP GMBH (1)
* 2010/0090,618 DIMMABLE LIGHTING SYSTEM 30 2009
 
NATIONAL SEMICONDUCTOR CORPORATION (1)
* 2011/0084,622 DIMMER DECODER WITH LOW DUTY CYCLE HANDLING FOR USE WITH LED DRIVERS 24 2010
 
MICROSEMI CORPORATION (1)
* 2009/0243,582 PHASE-CUT DIMMING CIRCUIT 17 2009
* Cited By Examiner

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