The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2003
Filed:
Jan. 15, 1999
Yasutoshi Yamamoto, Hirakata, JP;
Masayuki Yoneyama, Takatsuki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
In an image pickup device, a signal mixer mixes the image signals of different quantities of exposure outputted by an image sensor . A peak level detector detects peak level of the mixed signal, and a peak level judge decides whether the peak level is within a predetermined range or not. A controller controls a ratio of the quantities of exposure for the image sensor according to the decision by the peak level judge. Thus, the image pickup device has a good dynamic range in correspondence a dynamic range of an object, and an object image is reproduced well. Further, an iris device is also controlled appropriately when the dynamic range is controlled.