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:
Oct. 12, 1993
Filed:
Mar. 05, 1992
Akihiko Shiraishi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A color image pickup apparatus for converting an object image into an electrical signal having luminance information and color information includes an image pickup element arranged in a rectangular matrix having pixels arranged at a horizontal pitch P.sub.H and a vertical pitch P.sub.V, a color filter array having first color filters arranged in correspondence with the pixels and having an offset sampling structure having a horizontal pitch 2P.sub.H and a vertical pitch P.sub.V and offset by P.sub.H in a horizontal direction, and second and third color filters each having a rectangular matrix sampling structure having a horizontal pitch 2P.sub.H and a vertical pitch 2P.sub.V, and a color information forming circuit having a first color signal forming circuit for forming the color information and a second color signal forming circuit for forming the color information, the first and second color signal forming circuits operating on the basis of first, second, and third color signals output from pixels corresponding to the first, second and third color filters, and a color information forming switch switching between the first and second color signal forming circuits in accordance with a frequency component in a scanning direction of the object image or a direction perpendicular to the scanning direction.