Patent ID: 7898757
Filing Date: 2011-03-01
Classification: G11B

Abstract:
1. A hard disk drive controller comprising: a formatter controlling encoding of recording data or decoding of reproduced data, which is stored to a hard disk drive in a plurality of data sectors, each of which is divided into a plurality of partial data sectors; an error correction code (ECC) block encoding and outputting data stored in the partial data sectors having no errors or decoding data stored in partial data sectors having no errors; and a buffer block temporarily storing the recording data received from a host or the reproduced data output to the host; and wherein the formatter outputs the recording data or the reproduced data and outputs a first control signal and a second control signal based on error information of partial data sectors included in a data sector corresponding to the recording data or the reproduced data; and the error correction code (ECC) block encodes and outputs data corresponding to partial data sectors having no errors in the received data based on the first control signal received from the formatter during a write operation; or decodes data corresponding to partial data sectors having no errors in the received reproduced data based on the first control signal and outputting the decoded data in response to the second control signal during a read operation.