Optical disk pre - Ya Sa - Bo circuit

摘要

(57) Abstract Objective As for this device, for example, CD, CDV and LD etcIn pre- - ya of the optical disk kind of, the surface of the optical diskAnd it improves the ability to regenerate when there is a scar and the like on back denselyWith it is something which is made main purpose. Constitution As for this device, the scar and the like of the optical disk surface is detectedenbero - pu sensing station and optical disk back of RF signal of for the sake ofThe tracking signal high-frequency component sensing station in order to detect the scar and the likeWith having, either of these two sensing stations one side or both partiesWhen there is empty output, huo - refuse and toratsukinThing and optical deisu which make the sa - bo band of both sa - bo of gu narrowThe scar which judges that width of the scar and the like of the ku surface is larger than one fixed-commandAnd so on providing the width sensing station, it confronts the size and type etc of the scar and the like, mostThe fact that it tries to obtain suitable sa - bo state, main featureWith it is the sa - bo circuit of optical disk pre- - ya which is done.