PRE RECORDED MAGNETIC TAPES PHONOGRAPH

Brand Owner (click to sort) Address Description
ATLAS POLYDOR INTERNATIONAL GMBH Hamburg Germany PRE-RECORDED MAGNETIC TAPES AND PHONOGRAPH RECORDS AND VIDEO RECORDINGS;THE DRAWING IS LINED FOR RED. APPLICANT DOES NOT LIMIT ITS RIGHTS IN THE MARK TO PRESENTATION IN ANY PARTICULAR COLOR.;
POLYDOR DEUTSCHE GRAMMOPHON GESELLSCHAFT MBH Stralauer Allee 1 Berlin 10245 Germany PRE-RECORDED MAGNETIC TAPES AND PHONOGRAPH RECORDS AND VIDEO RECORDINGS;
POLYGRAM POLYDOR INTERNATIONAL GMBH Hamburg Germany Pre-Recorded Magnetic Tapes and Phonograph Records and Video Recordings;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The present invention provides servo band recorded magnetic tapes, manufacturing method of the tapes, servo band writers and servo band Writing method. The background magnetic flux transition zone is generated with one directional polarization of the magnetization along the servo bands on the magnetic recording tapes. The servo stripes are generated with the reverse polarity of magnetization in the background magnetic flux transition zone. Then the magnetic flux servo transition against the background has more contrast so that the detected servo signal which is differential signal can be maintained in a high level.