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:
Nov. 07, 2000
Filed:
Oct. 15, 1997
Yasuhiro Hirano, Hachioji, JP;
Kazuo Ishikura, Kunitachi, JP;
Masato Sugiyama, Yokohama, JP;
Mitsuo Nakajima, Yokohama, JP;
Shoji Kimura, Kawasaki, JP;
Toshiyuki Kurita, Yokohama, JP;
Tsuguo Itagaki, Yokohama, JP;
Haruki Takata, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In order to carry out format conversion or scaling processing of picture signal by a memory having a small capacity, picture signals of interlace scanning are converted into picture signals of progressive scanning by interpolation by using an IP convertor 1 and a multiple scan convertor 3, a scaling processing of expansion and compression in the horizontal direction is firstly performed by using a horizontal scaling unit 5, processing of expansion, compression, frame rate conversion, synchronization and the like are secondly performed by using a vertical scaling unit 6 and commonly using memories used in scaling processing in the vertical direction and finally, color space conversion or inverse gamma processing is performed by using a picture quality improving unit 8 thereby converting the picture signals into picture signals S6 having a predetermined format.