DATA CONVERSION DEVICE, STORAGE DEVICE, PROTOCOL CONVERSION DEVICE, DEVICE CONTROL UNIT, RECORDING AND REPRODUCING SYSTEM, RECORDING AND REPRODUCING METHOD, AND MANAGEMENT METHOD OF STORAGE CAPACITY

• Main Author: TAIRA KAZUHISA
• Format: Patent
• Language: English
• Published: 17.05.2002
• Edition: 7
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

PROBLEM TO BE SOLVED: To provide a storage device, device control unit, data conversion device, recording and reproducing system, recording and reproducing method, and management method of storage capacity allowing efficient storage and transfer of data. SOLUTION: This data conversion device 500 for converting transfer data WD formed of a logic sector length into data of a physical sector length smaller than the logic sector length comprises a pattern detecting means 530 for recognizing a data row repeatedly appearing in the transfer data WD as a pattern data part PD and recognizing a data row except the pattern data part PD as a random data part RD, an address setting means 540 for generating an address conversion table 610 having a logic block address LBA assigned to the transfer data WD related to physical block addresses PBAa or PBAb for storing the pattern data part PD or the random data part RD, and a pattern generating means for converting the transfer data WD so as to be formed of the random data part RD and the pattern data part PD.