公开(公告)号：DE2512456A1

公开(公告)日：1976-10-07

申请号：DE2512456

申请日：1975-03-21

Applicant: BASF AG

Inventor： SOMMER FRANZ ING GRAD ,  UHL KARL DIPL ING DR ,  LOESER WERNER DIPL CHEM DR ,  FELLEISEN PETER DIPL ING ,  HAMMERSCHMITT PETER DIPL ING ,  SCHNEIDER RICHARD DIPL PHYS DR

IPC: G11B5/716 ,  G11B5/68 ,  B32B15/00 ,  H01F10/00

Abstract: The disc type magnetic data record carrier consists of a carrier material (S), a magnetic film (1) for the pick-up of servo information, a non-magnetic intermediate film (Z) and a second magnetic film (2) for the pick-up of data-information. The carrier material (S) is typically provided on both sides with foils. The film strength of each magnetic film is typically 0.06 to 0.6 um and the non-magnetic film has a film strength of 10 to 30 times that of the weaker films. The ratio of the coercive force between the first and second metal magnetic films is between 0.5 and 2.0. The surface of the second magnetic film is provided with a protective film.

公开(公告)号：DE2612854A1

公开(公告)日：1977-10-13

申请号：DE2612854

申请日：1976-03-26

Applicant: BASF AG

Inventor： KOHL LAMBERT ING GRAD ,  SCHNEIDER RICHARD DIPL PHYS DR ,  UHL KARL DIPL ING DR

IPC: G06K13/14 ,  G11B17/22 ,  G11B5/016

Abstract: A magazine for transport and operation in a device for a plurality of film-like flat recording media, especially of floppy disks. Details of the magazine according to the invention relate to a part which receives the recording medium, a lid, a mechanism for locking the said parts together, and a guide and gripper part.

公开(公告)号：DE2612853A1

公开(公告)日：1977-10-13

申请号：DE2612853

申请日：1976-03-26

Applicant: BASF AG

Inventor： KOHL LAMBERT ING GRAD ,  SCHNEIDER RICHARD DIPL PHYS DR ,  UHL KARL DIPL ING DR

IPC: G11B17/032 ,  G11B17/26 ,  G06K13/14 ,  G11B5/016 ,  G11B17/22

Abstract: The changing mechanism is used for flexible recording discs each contained ina rectangular sleeve, the play-back unit for the discs having means for lowering the disc onto a rotatable turntable. The recording disc can be moved almost orthogonal to the plane of movement of the disc lowering device by a transport mechanism moving forwards and backwards. An operating mechanism is positioned between the lowering device and the transport mechanism, such that the drive means for rotating the turntable is operated in dependence on the position of the disc lowering device and the position of the transport mechanism. A separate motor may be provided for the disc lowering device and be controlled in conjunction with the drive motor for the turntable.

公开(公告)号：DE2713194A1

公开(公告)日：1978-10-05

申请号：DE2713194

申请日：1977-03-25

Applicant: BASF AG

Inventor： FELLEISEN PETER DIPL ING ,  GROSSHANS PETER ,  HAMMERSCHMITT PETER DIPL ING ,  SCHNEIDER RICHARD DIPL PHYS DR

IPC: G11B5/48 ,  G11B5/596 ,  G11B5/22 ,  H04N5/78

公开(公告)号：DE2632923A1

公开(公告)日：1978-01-26

申请号：DE2632923

申请日：1976-07-22

Applicant: BASF AG

Inventor： KOHL LAMBERT ING GRAD ,  SCHNEIDER RICHARD DIPL PHYS DR ,  UHL KARL DIPL ING DR

IPC: G11B17/032 ,  G11B17/26 ,  G06K13/14 ,  G11B5/016 ,  G11B17/22

Abstract: The changing mechanism is used for flexible recording discs each contained ina rectangular sleeve, the play-back unit for the discs having means for lowering the disc onto a rotatable turntable. The recording disc can be moved almost orthogonal to the plane of movement of the disc lowering device by a transport mechanism moving forwards and backwards. An operating mechanism is positioned between the lowering device and the transport mechanism, such that the drive means for rotating the turntable is operated in dependence on the position of the disc lowering device and the position of the transport mechanism. A separate motor may be provided for the disc lowering device and be controlled in conjunction with the drive motor for the turntable.