Patent Number: 6,801,221

Title: Scanning line interpolating device

Abstract: A vertical interpolation circuit interpolates an interpolated pixel with pixels located on upper and lower vertical positions, and outputs a vertical interpolated value. An oblique averaging part averages pixels obliquely located with respect to the interpolated pixel on the basis of an oblique edge angle signal, and outputs the result of calculation as an oblique average. An oblique difference absolute value operation part calculates the absolute value of the difference between the values of the pixels obliquely located with respect to the interpolated pixel on the basis of the oblique edge angle signal, and outputs the result of calculation as an oblique difference absolute value. A mixing part outputs the vertical interpolated value, the oblique average or a mixed value thereof as an interpolated pixel value on the basis of the oblique difference absolute value.

Inventors: Kawamura; Hideaki (Moriyama, JP), Kasahara; Mitsuhiro (Hirakata, JP), Daigi; Tomoaki (Kadoma, JP)

Assignee: Matsushita Electric Industrial Co., Ltd.

International Classification: H04N 7/01 (20060101); H04N 5/44 (20060101); G09G 005/00 (); G09G 005/02 ()

Expiration Date: 10/02016