• DocumentCode
    1447046
  • Title

    Head positioning servo and data channel for HDDs with multiple spindle speeds

  • Author

    Yada, H. ; Ishioka, H. ; Yamakoshi, T. ; Onuki, Y. ; Shimano, Y. ; Uchida, M. ; Kanno, H. ; Hayashi, N.

  • Author_Institution
    Sony Corp., Tokyo, Japan
  • Volume
    36
  • Issue
    5
  • fYear
    2000
  • fDate
    9/1/2000 12:00:00 AM
  • Firstpage
    2213
  • Lastpage
    2215
  • Abstract
    For hard disk drives (HDDs) having multiple disk rotational speeds, a new data channel and head positioning servo system was developed. Head positioning performance at the low spin-speed was preserved by using a synchronous servo scheme with more servo areas than the conventional scheme. Using a common physical disk format, sufficient servo performance and the same data recording density of 1.3 Gbit/inch 2 were obtained on two 2.5 inch prototype HDDs with a low spin-speed of 37.5 Hz and a high spin-speed of 75 Hz. Disk interchangeability was also confirmed
  • Keywords
    disc drives; hard discs; magnetic heads; servomechanisms; 2.5 in; HDDs; data channel; data recording density; disk interchangeability; disk rotational speeds; hard disk drives; head positioning servo; multiple spindle speeds; physical disk format; synchronous servo scheme; Delay; Disk drives; Disk recording; Energy consumption; Frequency; Hard disks; Magnetic heads; Prototypes; Sampling methods; Servomechanisms;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.908363
  • Filename
    908363
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1447046