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. 08, 2012
Filed:
Nov. 21, 2005
Masako Asamura, Tokyo, JP;
Koji Minami, Tokyo, JP;
Chihiro Sakuwa, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Masako Asamura, Tokyo, JP;
Koji Minami, Tokyo, JP;
Chihiro Sakuwa, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A video signal processing apparatus, which can prevent degradation of picture quality in converting an interlaced scan video signal to a progressive scan video signal, includes an interframe correlation detection means (); an interfield correlation detection means (); a field resolution determination means () which generates a signal (filhv) indicative of a degree of high frequency components existing in a field; a pull-down sequence detection means () which generates a telecine detection signal (tci) indicating whether or not an input video signal is any of 2-3 pull-down telecine video signal and 2-2 pull-down telecine video signal and also generates a mixing ratio signal (tcmix) indicative of a mixing ratio used at the time of interpolation processing; an interpolation signal generation means () which mixes a plurality of kinds of interpolation signals (Im, It) in accordance with the telecine detection signal (tci) and the mixing ratio signal (tcmix); and a rate doubling conversion means () which generates the progressive scan video signal (Prog) from a delayed video signal (R) and an interpolation signal (I).