作者: Akifumi Okazaki
DOI:
关键词: Servo 、 Servo drive 、 Computer hardware 、 Servo control 、 Computer science 、 Digital data 、 Disk storage 、 Phase (waves) 、 Phase-locked loop 、 Sampling (signal processing)
摘要: A data reproducing apparatus for use in a hard disk drive (HDD) reproduces user and servo recorded on disk. The comprises an A/D converter, read PLL circuit, circuit. converter converts signals by head from the disk, to data, both being digital data. circuit generates sampling pulses, which are supplied D/A reproduce In areas provided is recorded, together with preamble patterns uses perform phase acquisition.