Patent ID: 6081410
Filing Date: 2000-06-27
Classification: G11B

Abstract:
An adapter cartridge for personal computers, comprising, in combination:a cartridge in the shape of a floppy diskette, said cartridge being operable in a floppy disk drive;a drive plate rotatably attached to a central portion of the cartridge, the drive plate having a side slot about a rotatable axis, and having a drive plate diameter;an insertable and removable coin shaped magnetic disk having a disk diameter rotatably connected to the cartridge, the drive plate diameter being substantially equal to the disk diameter; anda drive system for directly allowing the disk to rotate simultaneously at substantially an identical angular velocity with the drive plate, wherein inserting the cartridge into a computer disk drive to access the side slot allows the coin shaped magnetic disk to record and play back data and the magnetic disk is removable for separate transport and storage from the cartridge, wherein said drive system includes a spindle for engaging the coin shaped magnetic disk; said spindle being laterally offset from said rotatable axis of said drive plate in a direction parallel to a recording surface of said coin shaped magnetic disk.