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Class Information
Number: 348/629
Name: Television > Image signal processing circuitry specific to television > Transition or edge sharpeners > Vertical transition > Including horizontal transition
Description: Subject matter including additional circuitry for sharpening transitions between pixels on the same scan line.

Patents under this class:

Patent Number Title Of Patent Date Issued
8659618 Noise-robust edge enhancement system and method for improved image sharpness Feb. 25, 2014
8437054 Methods and systems for identifying regions of substantially uniform color in a digital image May. 7, 2013
8264615 Split edge enhancement architecture Sep. 11, 2012
8184204 De-ring system and method for reducing the overshooting and undershooting of video signal in a scaler May. 22, 2012
8149337 Video processing apparatus and video processing method Apr. 3, 2012
7962012 Recording medium, reproduction apparatus, recording method, program and reproduction method Jun. 14, 2011
7924345 Method and system for deinterlacing using polarity change count Apr. 12, 2011
7190409 Method for displaying an image having a maximal brightness Mar. 13, 2007
7123300 Image processor and method of processing images Oct. 17, 2006
7119854 Method for deriving an objective sharpness metric Oct. 10, 2006
6674253 Scan velocity modulation technique Jan. 6, 2004
6483551 Method for displaying an image having a maximal brightness Nov. 19, 2002
6476876 Contour emphasizing circuit Nov. 5, 2002
6429881 Method and system for transitioning graphic elements of a network interface description document Aug. 6, 2002
6384872 Method and apparatus for interlaced image enhancement May. 7, 2002
5812211 Image signal processing apparatus for prompter Sep. 22, 1998
5801791 Method for displaying an image having a maximal brightness Sep. 1, 1998
5790205 Method of increase sharpness in digital displays Aug. 4, 1998
5748258 Apparatus and method for processing a video signal May. 5, 1998
5715015 Method of enhancing details contained in a color signal and a circuit for implementing the same in a color video apparatus Feb. 3, 1998
5543859 Horizontal contour emphasizing signal processor Aug. 6, 1996
5537154 Edge compensation method and apparatus of image signal Jul. 16, 1996
5491521 Scan velocity modulation system with auxiliary vertical deflection towards bright side of video signal transitions Feb. 13, 1996
5481311 Method and apparatus for direction related interpolation Jan. 2, 1996
5467145 Circuitry for enhancing detail in color video signals Nov. 14, 1995
5432563 Image contour enhancing apparatus which limits enhancement where signal components for contour enhancement in both horizontal and vertical directions are generated in overlapping relationship Jul. 11, 1995
5418574 Video signal correction apparatus which detects leading and trailing edges to define boundaries between colors and corrects for bleeding May. 23, 1995
5386245 Apparatus and method for processing a digital video signal which prevents discontinuities and erosion of the picture area Jan. 31, 1995
5239375 Real-time endoscopic image processing system Aug. 24, 1993
5150214 Method and circuit for correction of horizontal edges Sep. 22, 1992
5144399 Color image pickup apparatus Sep. 1, 1992
5124794 Adaptive peaking circuit Jun. 23, 1992
5119193 Video-signal processing device Jun. 2, 1992
4970593 Video image enhancement utilizing a two-dimensional digital aperture correction filter Nov. 13, 1990
4962419 Detail processing method and apparatus providing uniform processing of horizontal and vertical detail components Oct. 9, 1990
4961110 Endoscope apparatus Oct. 2, 1990
4912556 Apparatus for compensating contour of television signal Mar. 27, 1990
4908874 System for spatially transforming images Mar. 13, 1990
4891697 Electronic endoscope having function of effecting enlargement/reduction processing Jan. 2, 1990
4882623 Signal processing apparatus for endoscope capable of changing outline enhancement frequency Nov. 21, 1989
4680639 Viewfinder for TV camera use with means for enhancing the contrast level of the viewfinder image Jul. 14, 1987
4652908 Filtering system for processing a reduced-resolution video image Mar. 24, 1987
4475125 Television pick-up arrangement comprising a solid-state picture pickup device Oct. 2, 1984
4353093 Impulse noise reduction system for TV receivers Oct. 5, 1982
4351003 Automatic video signal peaking control Sep. 21, 1982
4238772 Image enhancement using on-line spatial filtering Dec. 9, 1980
4086618 Process and circuit arrangement for contour correction of the luminance signal in a television camera Apr. 25, 1978
3946152 Correction system for video signals having a limited amplitude range Mar. 23, 1976

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