Patent · US Expired

Data reproducing apparatus

US5045956A · kind A · utility

10Cited by
2References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 23, 1988
Grant dateSep 3, 1991
Priority date
Expiry dateNov 23, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2220/913
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In a data reproducing apparatus, the effective capture range is enlarged by controlling the capture range of the clock reproducing phase locked loop circuit based on the difference between a measured bit rate and a standard rate according to the operation mode. It is preferable to correct the bit rate additionally. Stable control may be performed even at the time of high speed searching accompanied by large mechanism load variations and under a transient state of mode transition, thus making it possible to read the data stably at all times.

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