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Class Information
Number: 348/365
Name: Television > Camera, system and detail > Optics > Exposure control > Automatic control of iris, stop, or diaphragm > Based on image signal > Contrast
Description: Subject matter including a device for detecting brightness differences of video signal components for determining the exposure condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7420612 |
Digital camera |
Sep. 2, 2008 |
| 7362370 |
Image capturing apparatus, image capturing method, and computer-readable medium storing program using a distance measure for image correction |
Apr. 22, 2008 |
| 7319478 |
Solid-state video camera and method for brightness control |
Jan. 15, 2008 |
| 7256833 |
Method and apparatus for automatically optimizing optical contrast in automated equipment |
Aug. 14, 2007 |
| 6989860 |
Method and apparatus for auto-exposure control in the presence of artificial illumination |
Jan. 24, 2006 |
| 6937774 |
Apparatus and method for efficiently increasing the spatial resolution of images |
Aug. 30, 2005 |
| 6816191 |
Image processing method for the adjustment of photographic contrast and the relevant apparatus |
Nov. 9, 2004 |
| 6570620 |
Exposure control device |
May. 27, 2003 |
| 6307597 |
Apparatus for sampling and displaying an auxiliary image with a main image |
Oct. 23, 2001 |
| 5963254 |
Technique for backlight compensation by selecting most appropriate compensation area and controlling iris in accordance with luminance level thereof |
Oct. 5, 1999 |
| 5959670 |
Image pickup apparatus with exposure control correction |
Sep. 28, 1999 |
| 5798793 |
Automatic focusing device capable of detecting panning |
Aug. 25, 1998 |
| 5751354 |
Image sensing apparatus and method with exposure performed based on focus evaluation values |
May. 12, 1998 |
| 5694168 |
Auto focus control device and method including selecting a zone for detecting an evaluative value for focusing in accordance with photographing direction |
Dec. 2, 1997 |
| 5677733 |
Exposure control device having a plurality of light detecting areas |
Oct. 14, 1997 |
| 5406349 |
Interchangeable lens and interchangeable lens system |
Apr. 11, 1995 |
| 5293241 |
Method and circuit for controlling opening/closing of a camcorder iris diaphragm |
Mar. 8, 1994 |
| 5264940 |
Image sensing apparatus having exposure level and dynamic range control circuit |
Nov. 23, 1993 |
| 5189519 |
Electronic camera with exposure control |
Feb. 23, 1993 |
| 5185671 |
Adaptive control of an electronic imaging camera |
Feb. 9, 1993 |
| 5184172 |
Method of and apparatus for automatically controlling exposure |
Feb. 2, 1993 |
| 5065247 |
Automatic iris correction apparatus for use in automatically adjusting exposure in response to a video signal |
Nov. 12, 1991 |
| 5036400 |
Automatic iris correction apparatus for use in automatically adjusting exposure in response to a video signal |
Jul. 30, 1991 |
| 5016110 |
Automatic focusing control of a video camera for industrial and military purposes |
May. 14, 1991 |
| 4978990 |
Exposure control apparatus for camera |
Dec. 18, 1990 |
| 4969045 |
Image sensing apparatus having automatic iris function of automatically adjusting exposure in response to video signal |
Nov. 6, 1990 |
| 4843476 |
System for controlling the amount of light reaching an image pick-up apparatus based on a brightness/darkness ratio weighing |
Jun. 27, 1989 |
| 4752567 |
Method of visualizing individual submicroscopic metal particles |
Jun. 21, 1988 |
| 4737855 |
Automatic diaphragm control device for TV camera objective |
Apr. 12, 1988 |
| 4717960 |
Automatic diaphragm control device of variable photometry type used in objective for television camera |
Jan. 5, 1988 |
| 4562476 |
Automatic diaphragm control device for use IWT CCTV camera |
Dec. 31, 1985 |
| 4547808 |
Photometric circuit incorporated in objective provided with automatic diaphragm for closed circuit television (CCTV) camera |
Oct. 15, 1985 |
| 4472743 |
Automatic diaphragm control device for a closed circuit television camera |
Sep. 18, 1984 |
| 4453185 |
Automatic diaphragm control device for a closed circuit television camera |
Jun. 5, 1984 |
| 4327378 |
Automatic iris control for solid-stage imaging apparatus |
Apr. 27, 1982 |
| 4302780 |
Photometric system |
Nov. 24, 1981 |
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