Apparatus for detecting faulty sectors and for allocating replac

Apparatus for digitally recording time-multiplexed digital infor

Apparatus for encoding an NRZ digital signal as a BRZ synchronou

Apparatus for forming an erasable record of the value of a measu

Apparatus for forming recording tracks on disks with different t

Apparatus for generating a signal whose phase is synchronized wi

Apparatus for generating index signals, for use in magnetic reco

Apparatus for information recording and reproducing

Apparatus for information recording and reproducing

Apparatus for magnetically recording digital data

Apparatus for peak detection in magnetic recording

Apparatus for playback of magnetically recorded data having a va

Apparatus for processing unusable area of discs

Apparatus for providing data dependent detection in a data...

Apparatus for providing head amplitude characterization

Apparatus for providing head amplitude characterization...

Apparatus for providing high speed, linear-phase interpolation

Apparatus for providing new servo information on a disk without

Apparatus for re-recording a digital signal on a record medium a

Apparatus for reading data