Patent · US Expired

Magnetic disc reproducing apparatus

US4609949A · kind A · utility

12Cited by
2References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 13, 1985
Grant dateSep 2, 1986
Priority date
Expiry dateMay 13, 2005

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2220/2508
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A magnetic disc reproducing apparatus for reproducing analog or digital information signals selectively recorded in a plurality of tracks of a magnetic disc includes a transducer placed in transducing relation with the plurality of tracks for reproducing the information signals recorded in one of the tracks, a checking circuit connected to the transducer for checking a portion of the reproduced information signals and an identifying circuit connected to the checking circuit for identifying whether analog or digital information signals are being reproduced.

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