Patent · US Expired

Automatic calibration method, read apparatus and storage apparatus

US6141168A · kind A · utility

29Cited by
10References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 5, 1995
Grant dateOct 31, 2000
Priority date
Expiry dateDec 5, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2005/0018
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An automatic calibration method for a read system in which data read by a head from a recording medium is demodulated using a partial response method which includes the steps of: storing at least one of a parameter relating to a bias current fed to the head and parameters necessary for data demodulation in the read system, for a plurality of operating conditions; and automatically calibrating the at least one parameter to a preset value suitable for an operating condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.