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:
Apr. 20, 1993
Filed:
Jun. 14, 1991
Applicant:
Inventors:
Tsutomu Fukatsu, Kanagawa, JP;
Yoshihiro Nakatani, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358339 ; 360 103 ; 360 362 ;
Abstract
An apparatus for processing an interlaced video signal having (2n+1) horizontal scanning lines (n: an integer) for one frame, which consists of two fields, is provided with a memory capable of storing at least an (n+1) horizontal scanning line portion of the video signal. The apparatus is arranged to reset the reading address of the memory alternately at an interval of n horizontal scanning periods and at an interval of (n+1) horizontal scanning periods and to reset the writing address of the memory in response to the front edge of a vertical synchronizing signal included in the input video signal.