Abstract: The magnetic record/reproduce apparatus for recording and reproducing large amounts of data at ultra-high-speed using a perpendicular magnetic recording mode, comprises: at least a cylinder having a perpendicular magnetic recording layer provided on at least the inner or outer surface thereof; a plurality of magnetic heads arranged to face the perpendicular magnetic recording layer of the cylinder; a rotating means for rotating at least one of the cylinder and the plurality of magnetic heads in relation to the other; a linear driving means for moving at least the cylinder or the plurality of magnetic heads along the axial direction of the cylinder; and a record/reproduce means for recording and/or reproducing data on the perpendicular magnetic recording layer.

Abstract: A high speed information read/write system includes a substantially cylindrical information storing device including at least one storage cylinder having at least one information storage medium thereon. A head device including at least one head cylinder is disposed coaxially with the storage cylinder and has a plurality of head members mounted thereon. An information input/output device outputs information to the information storage medium of the storage cylinder through the head device and inputs the information from the information storage medium through the head device. A drive device rotates the information storing device and effects a relative movement between the information storing device and the head device.

Abstract: A spring roller comprising a roller body and end shafts positioned at both end portions of the roller body, one of said end shafts being fixed to the roller body, the other end shaft being connected to the roller body through the medium of an elastic member so that the other end shaft can be rotated relative to the roller body.

Abstract: A tape driving apparatus is disclosed which is operable to shift all of tapes simultaneously so as to position items recorded on the tapes in a predetermined position or to record informations on the tapes. The tape driving apparatus includes a plurality of pairs of first and second rollers and associated tapes, the first and second rollers having a polygonal cross section, each tape being wound on the corresponding first roller from its one end with one face thereof inside and on the corresponding second roller from the other end thereof with the other face thereof inside.

Abstract: An input machine for inputting information corresponding to a desired item, comprising a plurality of guide plates arranged substantially parallel to each other and lying substantially on a single plane, a plurality of films on each of which a plurality of items to be inputted are printed and which are adapted to be shifted on the corresponding guide plates, and means for shifting the films simultaneously on the corresponding guide plates is disclosed.

Abstract: An optical retrieving system comprising a light source and a lens means for receiving a light from the light source, wherein the lens means is held stationary, the light source being movable, a flexible optical fiber means being provided between the movable light source and the stationary lens means for always maintaining the optical alignment between the light source and the lens means even during the movement of the light source.

Abstract: A magnetic head comprising a head body provided at its outer peripheral surface with a plurality of annular grooves, a plurality of magnetic elements connected to the corresponding peripheral surface portions positioned between the adjacent grooves, one or more magnetic exciters, and a switching circuit for selectively connecting any pair of the two adjacent magnetic elements to the magnetic exciter. The head body of the magnetic head may comprise nonmagnetic body on which a plurality of magnetic areas disposed so that on the outer surface of the head body the magnetic areas and nonmagnetic areas are positioned alternately.

Abstract: A tape driving arrangement employs a plurality of tapes mounted on a drum in a manner enabling any selected tape to be positioned at a pick-up station. The free end of each tape is provided with lateral protrusions which enable the tape to be drawn through the reading zone of an input unit to a take-up reel by a mechanism that engages those lateral protrusions. That mechanism and the engaged lateral protrusions travel in paths on either side of the reading zone and thus avoid damaging the input unit. A rewind mechanism is provided to enable the tape to be rewound.