Patent ID: 7626908
Filing Date: 2009-12-01
Classification: G11B,H03M

Abstract:
1. A data recording/reproducing system for a disk recording medium in which tracks are concentrically formed and each having a plurality of sectors, servo regions are radially oriented at predetermined positions on each of the tracks, and servo frames are formed on the tracks with the sectors placed between the servo regions, the system comprising: seek means for seeking a target track; data access means for making an access on the found track; and error correction means for generating an error correction code for data error correction, and carrying out the data error correction based on the error correction code, wherein the error correction means sets a first error correction code unit to a given amount of data, sets a second error correction code unit that is corresponding to two or more of the first error correction code units, forms an error correction block including two or more of the first error correction code units and the second error correction code unit provided thereto, and generates the error correction block so that at least one of the sectors each provided with the second error correction code unit is located in the servo frame at a head sector from which the data access means first starts reading when the seek means moves onto a specific track of the recording medium.