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:
Jan. 21, 2003
Filed:
Jun. 19, 2000
Yasuhiro Hirano, Hachioji, JP;
Takaaki Matono, Yokohama, JP;
Haruki Takata, Yokohama, JP;
Takashi Hasegawa, Yokohama, JP;
Kazuo Ishikura, Yokohama, JP;
Masato Sugiyama, Yokohama, JP;
Mitsuo Nakajima, Yokohama, JP;
Yasutaka Tsuru, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A low-cost motion-compensated picture signal scan conversion circuit ensuring high picture quality is to be provided. The circuit has a motion-adaptive first interpolation signal generator; a second motion-compensated interpolation signal generator; a motion vector detector; and a setting unit for checking the reliability of motion compensation by comparing signals from the second interpolation signal generator with signals on interlaced scanning lines, and setting the selection of signals from the first and second interpolation signal generators, wherein interlaced scanned signals are converted into progressive scanned signals by setting the threshold so that the threshold become smaller with an increase in the number of re-searched blocks in the detection of motion vectors.