Patent ID: 7155114
Filing Date: 2006-12-26
Classification: G11B,H04N

Abstract:
1. An information recording apparatus for recording information on a predetermined recording medium, said information recording apparatus comprising: creation means for creating search data from main image data; and recording means for recording said search data created by said creation means and said main image data on said recording medium, wherein said creation means creates first data by which an image can be displayed over an entire screen, and second data for enhancing the image quality of said image displayed by said first data, each being used as said search data, and said recording means records said first data sequentially followed on the recording medium by said second data, wherein the first data includes a first macro block of discrete cosine components extracted from a first luminance signal, a second macro block of discrete cosine components extracted from a first color-difference signal, and a third macro block of discrete cosine components extracted from a second color-difference signal, and wherein the second data includes three macro blocks of discrete cosine components extracted from each of three luminance signals, the three luminance signals and the first luminance signal are portions of a main luminance signal.