Processing

Please wait...

Settings

Settings

Goto Application

1. US20070273785 - Method for reading out signal charges from an image sensor having different exposure times

Office
United States of America
Application Number 11666759
Application Date 28.10.2005
Publication Number 20070273785
Publication Date 29.11.2007
Grant Number 07956925
Grant Date 07.06.2011
Publication Kind B2
IPC
H04N 5/235
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
235Circuitry for compensating for variation in the brightness of the object
G03B 7/00
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
7Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
H04N 5/355
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors
351Control of the SSIS depending on the scene, e.g. brightness or motion in the scene
355Control of the dynamic range
H04N 5/361
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors
357Noise processing, e.g. detecting, correcting, reducing or removing noise
361applied to dark current
H04N 5/374
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors
369SSIS architecture; Circuitry associated therewith
374Addressed sensors, e.g. MOS or CMOS sensors
Applicants Panasonic Corporation
Inventors Ogawa Masahiro
Imamura Kunihiro
Nishikawa Mayu
Hatano Toshinobu
Agents McDermott Will & Emery LLP
Priority Data 2004-319148 02.11.2004 JP
Title
(EN) Method for reading out signal charges from an image sensor having different exposure times
Abstract
(EN)

Suppress deterioration in picture qualities while achieving expansion in a dynamic range.

An image sensor readout method that reads out, from an area sensor where a plurality of image pickup elements are arranged in matrix, signal charges that are accumulated in the image pickup elements is constituted as follows. First, plural kinds of exposure time different in length from each other are set, and the exposure time is then individually allocated to each line of the area sensor. Next, the signal charges accumulated in the image pickup elements in the allocated exposure time are read out through a line unit of the area sensor. Then, the read out signal charges are synthesized through a screen unit of the area sensor.


Related patent documents