Patent ID: 6798595
Filing Date: 2004-09-28
Classification: G11B

Abstract:
A magnetic recording playback device comprising:a recording magnetic head for recording or deleting data on a magnetic record medium; a playback magnetic head for reproducing the recorded data; parameter acquiring means for acquiring plural parameters relating to an operating characteristic of the magnetic recording medium and operating characteristics of said recording and playback magnetic heads when said recording and playback magnetic heads perform the recording and reading operations, respectively; redundant data adding means for adding redundant data having a predetermined number of bytes to data before the data is written on the magnetic recording medium; data encoding means for encoding the data to which the redundant data is added; error correction capability value storage means for holding plural error correction capability values each corresponding to a combination of the parameter relating to the operating characteristic of the magnetic recording medium and the parameters relating to the operating characteristics of said recording and playback magnetic heads; and control means for selecting an error correction capability value corresponding to the parameters acquired by said parameter acquiring means from the error correction capability values stored in said error correction capability value storing means, changing an interleaving configuration of the data, and controlling said redundant data adding means so that said redundant adding means varies and adds the redundant data having the predetermined number of bytes to the data to be recorded according to the selected error correction capability value.