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Class Information
Number: 348/712
Name: Television > Image signal processing circuitry specific to television > Color television signal processing > Luminance channel circuitry
Description: Subject matter including specific circuitry of particular utility in the luminance section of a color television device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7595842 |
System and method for three dimensional comb filtering |
Sep. 29, 2009 |
| 7545443 |
Image signal processing apparatus and method |
Jun. 9, 2009 |
| 7502077 |
Device and method for processing video signals to improve the black contrast |
Mar. 10, 2009 |
| 7489349 |
Image processing apparatus having a digital image processing section including enhancement of edges in an image |
Feb. 10, 2009 |
| 7474342 |
Image processing apparatus having a digital image processing section including enhancement of edges in an image |
Jan. 6, 2009 |
| 7474343 |
Image processing apparatus having a digital image processing section including enhancement of edges in an image |
Jan. 6, 2009 |
| 7289681 |
Method of sharpening image using luminance channel |
Oct. 30, 2007 |
| 7283179 |
Liquid crystal television apparatus |
Oct. 16, 2007 |
| 7227587 |
System and method for three dimensional comb filtering |
Jun. 5, 2007 |
| 7187807 |
Apparatus for sharpening an image using a luminance channel |
Mar. 6, 2007 |
| 7176983 |
Adaptive coring for video peaking |
Feb. 13, 2007 |
| 7151576 |
Method and apparatus for modulating video signals |
Dec. 19, 2006 |
| 7145605 |
Synchronization of chroma and luma using handshaking |
Dec. 5, 2006 |
| 7136112 |
Method and apparatus for modulating video signals |
Nov. 14, 2006 |
| 7113227 |
Gradation correcting apparatus gradation correcting method and video display apparatus |
Sep. 26, 2006 |
| 7095451 |
Image processing system, projector, information storage medium and black and white extension processing method |
Aug. 22, 2006 |
| 7034896 |
Gradation correction apparatus |
Apr. 25, 2006 |
| 6967692 |
Apparatus for processing luminance signal |
Nov. 22, 2005 |
| 6956622 |
Method and apparatus for modulating video signals |
Oct. 18, 2005 |
| 6816193 |
Image processing apparatus |
Nov. 9, 2004 |
| 6807315 |
Method and apparatus for sharpening an image |
Oct. 19, 2004 |
| 6603452 |
Color shading correction device and luminance shading correction device |
Aug. 5, 2003 |
| 6495978 |
CRT display device and cutoff adjustment method |
Dec. 17, 2002 |
| 6483550 |
Video signal level converting device and video signal analog-to-digital converter |
Nov. 19, 2002 |
| 6480241 |
S-video signal loss compensation processing apparatus and method |
Nov. 12, 2002 |
| 6433838 |
Video signal processing method for improving the picture of dim area |
Aug. 13, 2002 |
| 6420076 |
Method and apparatus of inspecting foreign substance on substrate surface |
Jul. 16, 2002 |
| 6400412 |
Video signal processing apparatus with time adjustment of digital chrominance signal |
Jun. 4, 2002 |
| 6377313 |
Sharpness enhancement circuit for video signals |
Apr. 23, 2002 |
| 6313883 |
Method and apparatus for finite local enhancement of a video display reproduction of images |
Nov. 6, 2001 |
| 6288755 |
Video signal processing apparatus |
Sep. 11, 2001 |
| 6288756 |
Luminance correction circuit and video display monitor thereof |
Sep. 11, 2001 |
| 6243144 |
Adaptive false color video filter and method |
Jun. 5, 2001 |
| 6201583 |
Image signal input apparatus |
Mar. 13, 2001 |
| 6188444 |
Apparatus and methods for synthesizing foreground and background images |
Feb. 13, 2001 |
| 6172716 |
Video processing circuit |
Jan. 9, 2001 |
| 6028647 |
Automatic gain control circuit using PIN diode capable of improving noise figure while improving frequency band characteristic and bidirectional CATV receiver including such circuit |
Feb. 22, 2000 |
| 5900952 |
System for converting color image signals having high-frequency components from RGB to CMY color spaces |
May. 4, 1999 |
| 5861926 |
Device and method for calculating a brightness signal |
Jan. 19, 1999 |
| 5844629 |
Digital-to-analog video encoder with novel equalization |
Dec. 1, 1998 |
| 5812213 |
Video signal processing method and apparatus employing luminance and chroma allowances for controlling the chroma level |
Sep. 22, 1998 |
| 5808701 |
Circuit for automatically compensating delay difference between luminance signal and color signal |
Sep. 15, 1998 |
| 5784126 |
S-video signal loss compensation processing apparatus and method |
Jul. 21, 1998 |
| 5710545 |
Display providing reversible contrasting indicia |
Jan. 20, 1998 |
| 5673355 |
Deemphasis & Subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal |
Sep. 30, 1997 |
| 5657094 |
Video signal processing method and apparatus employing luminance and chroma estimates |
Aug. 12, 1997 |
| 5638138 |
Method for electronic image dynamic range and contrast modification |
Jun. 10, 1997 |
| 5596418 |
Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal |
Jan. 21, 1997 |
| 5552826 |
Digital video camera with external chrominance signal digitized at subcarrier frequency multiple |
Sep. 3, 1996 |
| 5552825 |
Color resolution enhancement by using color camera and methods |
Sep. 3, 1996 |
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