Method and device for gamma correction

United States of America Patent

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Oct 23, 2007
Grant Date
Sep 9, 2004
app pub date
Jul 31, 2002
filing date
Aug 1, 2001

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Expired

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Abstract

A display device, such as an electroluminescent display device, includes a matrix of pixels, each pixel being driven by a drive pulse that is pulse width modulated. The width of the drive pulse is controlled by a gamma correction device, in which gamma correction information is supplied in the form of a separate pulse distribution-modulated signal.

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Patent Owner(s)

Patent Owner	Address
KONINKLIJKE PHILIPS ELECTRONICS N V	GROENEWOUDSEWEG 1 EINDHOVEN 5621 BA

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G09G:ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Los, Remco	Eindhoven, NL	9	47
Sempel, Adrianus	Eindhoven, NL	81	1393
Snijder, Pieter Jacob	Eindhoven, NL	28	514

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Method and device for gamma correction

Number of patents in Portfolio can not be more than 2000

United States of America Patent

10484659

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PATENT NO	7286104
APP PUB NO	20040174388A1
SERIAL NO	10484659
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 23, 2007	US,7286104,B2 US7286104B2	GRANTED PATENT AS SECOND PUBLICATION
September 09, 2004	US,20040174388,A1 US20040174388A1	FIRST PUBLISHED PATENT APPLICATION

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10484659

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