Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2006-09-05
2006-09-05
Natnael, Paulos M. (Department: 2622)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
Reexamination Certificate
active
07102694
ABSTRACT:
An apparatus and method for eliminating an afterimage state occurring on a liquid crystal display (LCD) panel. The apparatus includes a memory for storing an input video signal, a data comparator for comparing data read from or written into the memory, a controller for outputting a previously stored RGB (red, green, and blue) signal for on screen display (OSD) if it is determined according to the comparison result of the data comparator that the data read from or written into the memory are maintained in the same state for a predetermined time, a signal processing unit for converting the input video signal into a desired format by writing the input video signal into the memory and reading the input video signal from the memory and for outputting a converted video signal, and displaying a moving picture, instead of the converted video signal, on an LCD if the RGB signal for OSD is output from the controller.
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“Notice to Submit Response” issued by Korean Intellectual Property Office dated on Jun. 18, 2003 and English language translation of the Notice to Submit Response.
Video-Technology Magazine'sVideo Format Resolutionsthat identifies various formats and their pixel resolution (http://www.videotechnology.com/0904/formats.htm).
Manifest Technology's PC Video Article on Video Format Conversion: AVI and Quicktime and MPEG (Aug. 1999) by Douglas Dixon which also identifies several video formats, and describes converting them from one format to another, with no mention of such conversion being based on a ‘video level’ (http://www.manifest-tech.com/media—pc/vid—fmt—cvt.htm.
Howstuffworks'How Video Formatting Workswhich includes identification of well known video formats NTSC, PAL and SECAM. Note that the discussion of what video formatting is not based on a ‘video level’ (http://entertainment.howstuffworks.com/video-format.htm/printable).
Avid DS Nitris Support Center'sLegalizing Video Levels Using the Color Correctorwhich describes ‘video formats’ and also describes ‘video levels’. Accordingly, the two terms are not synonymous. That is, ‘video level’ does not mean the same thing as ‘video format’. (http://www.avid.com/onlinesupport/supportcontent.asp?browse=&productID=94&contentID=8606).
Avid Xpress Pro Support Center's document entitled NVIDIA Display Card Settings Can Cause Video Level Shift When Playing/Stopping Video describes ‘brightness’ in terms of ‘video levels’. (http://www.avid.com/onlineSupport/supportcontent.asp?productID=97&contentID=7487&browse=).
Ken Stone's FinalCut Pro Web Site provided a document entitled Video Levels in Final Cut Pro By Graeme Nattress, which describes various video levels for analog and digital video formats. Note that there is no teaching that changing a ‘video level’ changes a ‘video format’ (http://www.kenstone.net/fcp—homepage/video—levels—nattress.html).
National Instruments web page provides a document entitled Video Signal Measurement Fundamentals wherein it is disclosed that “video levels define the levels and ranges for the different parts of the video signal. The unit used to define video levels is the IRE (Institute of Radio Engineers).” (http://zone.ni.com/devzone/conceptd.nsf/webmain/0E5DAD8917692B5D86256F3500549509?opendocument&node=dz00000—us).
Bushnell , Esq. Robert E.
Natnael Paulos M.
Samsung Electronics Co,. Ltd.
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