Disk drive having improved timing marks

Disk drive with sector numbers encoded by sequences of...

Disk recording medium for embodying high capacity hard disk driv

Dual modulo gray code positioning system

Fault tolerant RLL data sector address mark decoder

Hard disk drive with reduced sized servo sectors and driving met

Information recording and reproducing apparatus using sectors di

Information recording apparatus having variable compression rati

Information transfer control system having rotary storage unit w

Magnetic disc unit system

Magnetic disk apparatus

Magnetic disk drive apparatus including improved decoding circui

Magnetic disk drive using load/unload area for data storage

Magnetic disk drive, servo writer, self-servo writer and...

Magnetic disk drive, servo writer, self-servo writer and...

Magnetic disk having address information in a form which...

Magnetic recording and reproducing apparatus

Management of defect areas in recording media

Method and apparatus for determining head positioning in a magne

Method and apparatus for encoding and decoding digital data bloc