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:
Sep. 06, 1994
Filed:
Feb. 24, 1993
Haruhiko Murata, Osaka, JP;
Yukio Mori, Kyoto, JP;
Akihiro Maenaka, Osaka, JP;
Masao Takuma, Osaka, JP;
Kiyotada Kawakami, Osaka, JP;
Toru Asaeda, Nara, JP;
Toshiyuki Okino, Osaka, JP;
Toshiya Iinuma, Osaka, JP;
Akio Kobayashi, Osaka, JP;
Toshinobu Haruki, Osaka, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
Auto focus control and/or auto exposure control is carried out by using a luminance signal before gamma correction, before addition of aperture signal but after hand shake correction. Auto white balance control is carried out by using a color signal after hand shake correction. Consequently, precise auto focus control, auto exposure control and/or auto white balance control can be done. The field memory for electronic zooming and/or hand shake correction is also used as a field memory for noise reduction. Consequently, a video signal processing circuit which is inexpensive and simple can be implemented.