초록 ▼

An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address

An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address information is recorded. Besides, the address recording sections thus provided in the grooves are linearly disposed in radial directions of the optical disk. By thus arranging the optical disk on whose grooves and/or lands information is recorded, mixing of wobble frequency components in reproduced information signals does not occur, the sector method is applicable to the optical disk, and information signals of high quality can be obtained.

대표청구항 ▼

[ What is claimed is:] [1.] An optical recording medium, having a plurality of lands and grooves between the lands, each of the lands and the grooves serving as a track on which a light beam is projected for recording, reproducing and erasing information, wherein:each track has a plurality of disper

[ What is claimed is:] [1.] An optical recording medium, having a plurality of lands and grooves between the lands, each of the lands and the grooves serving as a track on which a light beam is projected for recording, reproducing and erasing information, wherein:each track has a plurality of dispersive wobble sections so that address information is recorded in each wobble section, each wobble section having only one dispersively wobbled side wall of one of the groove or the land.