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:
May. 28, 1996
Filed:
Jun. 01, 1995
Masaaki Nakayama, Hirakata, JP;
Yoshinori Kitamura, Takatsuki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image pickup apparatus includes an image sensor for simultaneously reading signals of adjoining two horizontal pixel rows by one-time horizontal scan; an electronic zoom circuit for enlargement-processing an output signal of the image sensor; an operation switch for instructing for on/off control of electronic zoom operation; and a scan method switching circuit for controlling scan method of the image sensor according to with an instruction from the operation switch. The scan method switching circuit exerts control so that, when the electronic zoom operation is turned on, a pair of two horizontal pixel rows to be read simultaneously in the odd and even fields are made identical, and when the electronic zoom operation is turned off, a pair of two horizontal pixel rows to be read simultaneously in the odd and even fields are shifted by one row in the vertical direction. In this image pickup apparatus, the positions of lines having high vertical frequency responses and those of lines having low vertical frequency responses are approximately reversed between the odd and even fields, so that the vertical frequency response is made uniform over the entire screen as a one-frame image.