Patent ID: 6785070
Filing Date: 2004-08-31
Classification: G11B

Abstract:
A magnetic transcription device, for transcribing information signals to a magnetic recording medium having a ferromagnetic layer, the device comprising;a support for a master information carrier that comprises a base and ferromagnetic bodies that correspond to information signals to be transcribed; magnetic field generating means for applying a magnetic field to a master information carrier carried by the support, the magnetic field generating means being capable of relative rotation with respect to a master information carrier carried by the support; and driving means for adjusting a distance between the magnetic field generating means and a master information carrier carried by the support, the adjusting being carried out during relative rotation between the magnetic field generating means and a master information carrier carried by the support, the magnetic field generating means being sized so as to pass over substantially all the ferromagnetic bodies corresponding to information signals to be transcribed of a master information carrier carried by the support in a single rotation between the magnetic field generating means and a master information carrier carried by the support.