Abstract: A compact disk case including a bottom shell, a cover shell hinged to the bottom shell, a platter mounted on the inside of the bottom shell to carry a compact disk, a rotary cap mounted on the outside of the cover shell, a driving device (for example, a handle) for turning the rotary cap, a driving wheel mounted on the inside of the cover shell and turned by the rotary cap, a driven wheel revolvably mounted inside the cover shell, a transmission gear meshed between the driving wheel and the driven wheel, and a cleaning element fixedly secured to the driven wheel and turned by the driving device through the rotary cap, the driving wheel, the transmission gear, and the driven wheel to remove dust from the compact disk.

Abstract: A compact disk cleaning system comprising a housing further comprising a base with a closeable cover, the base having a hollow interior and a plurality of circular apertures formed thereon, the cover having a plurality of cleaning plates coupled thereto and extended downwards therefrom with each cleaning plate alignable with a separate aperture when the cover is closed; a plurality of revolvable disk pedestals each disposed within the interior of the base and extended upwards within a separate aperature to define a seat adapted for holding a compact disk; an energizable disk pedestal actuation mechanism having an activated orientation for revolving the disk pedestals and a deactivated orientation for preventing such revolving; and a plurality of cleaning pads each securable over a cleaning plate; whereby when compact disks are placed upon the disk pedestals and the cover is closed to place the cleaning pads in contact with the compact disks, placing the actuation mechanism in the activated orientation allows

Abstract: A cleaner apparatus by which flaws or dust on the surface of a disk can be removed readily to prevent otherwise possible disorder in audio or video signals to be reproduced from the disk to allow utilization of the disk for a long interval of time is provided. The cleaner apparatus comprises an arm 1 for removably holding a disk 5 for rotation thereon, a dust or flaw removing rotary member 2 having a cylindrical peripheral face for being resiliently contacted with the surface of the disk 5, and a driving source 3 for driving the rotary member 2 to rotate around an axis of the same.

Abstract: A disc cleaning device for cleaning a disc on which information signals are pre-recorded or are to be recorded and which is housed within a disc cartridge, is disclosed. The disc cleaning device includes a cartridge holder in which a disc cartridge is loaded. The disc cartridge is the disc accommodated in a cartridge main body. The disc cleaning device also includes a shutter opening unit for moving a shutter member for opening an aperture in the disc cartridge loaded on the cartridge holder, which aperture has been closed by the shutter member. The disc cleaning device also includes a disc rotating and driving unit for rotating the disc housed within the disc cartridge, and a cleaning unit having a cleaning member adapted for being caused to bear on an information recording surface of the disc via the aperture in the disc cartridge.

Abstract: This invention relates to a laser disc buffing apparatus in which a buffing wheel is rotated on an axis perpendicular to the axis of the rotating laser disc and under compression against the disc to remove scratches or marks on the entire surface of the disc while cleaning the disc.

Abstract: The interior of a casing or housing 8 for an optical disk drive apparatus is divided into a first space S1 where a optical head 3, an optical disk loading mechanism 7 and a means 15 for increasing the pressure to prevent the entrance of dust and dirt into the first space S1 from the outside are positioned and a second space S2 where an electrical equipment section 5, a power supply section 6 and a motor-driven fan 9 for cooling the second space S2 are positioned, whereby it is possible to effectively cool the electrical equipment section 5 and the power supply section 6 in the second space S2, as well as to prevent the optical head 3 in the first space S1 from being contaminated by dust and dirt, so that the operation of this optical disk drive apparatus can be effectively maintained in a stable condition.

Abstract: An automatic cleaning device is provided to clean the surface of a digital signal recording disc. The cleaning device includes a driving mechanism having a crank slide block to drive a cleaning component across a disc surface in a radial direction to wipe the disc surface. The cleaning components of the cleaning device are movable and contact the disc respectively in a reversible manner so that the surface of the disc is alternately wiped in a dry or wet state to optimize the cleaning effect.

Abstract: The herein described invention pinpoints the problem plaguing the high quality reproduction of which the overall compact disc system is inherently capable. A disc manufacturing problem has been cited in the invention resulting in playback inadequacies resulting from a combination of the playback compact disc player and compact disc design and manufacture. A simple method for correcting already purchased discs is described. Several options are available to the disc manufacturer. The listener of contemporary corrected compact disc recorded sound, played by a compact disc player, will hear with much greater detail, depth, and clarity as contrasted to listening to a like disc which does not have the correction applied to the disc.

Abstract: A non-abrasive disc cleaner is disclosed. The present cleaner incorporates a base, a cover, a cleaning solution reservoir, a spin pan and a spinner means with a drive spindle for spinning the disc within the spin pan. Solution is supplied to the spin pan from the reservoir. A spinner is mounted within the cleaner, and the spin pan is horizontally positioned within the base above the reservoir. The disc is positioned with respect to the fluid within the pan with the spinning motion of the CD creating froth which forms a high surface area, thin skin of bubbles on the CD. Because of the spinning motion, the bubbles move outwardly and the CD is dried by air contact. Spinning the disc rapidly above the surface of the fluid causes a vacuum to draw the fluid upwards for frothing, or spinning the disc within the fluid froths the cleaning fluid and centrifugally removed the fluid from the pan.

Abstract: A cleaning apparatus for optical or magneto-optical storage disks includes a first rectangular part having four lateral edges and a raised interior, the interior having at least three troughs for holding utensils for cleaning the optical or magneto-optical storage disks; a second rectangular part having four lateral edges, an interior which is shaped complementary to the interior of the first rectangular part, and a border which runs completely along its four lateral edges for enclosing a disk cassette of a magneto-optical or optical storage disk inserted for cleaning; and a back strap for connecting the two parts to each other such that the two parts can be folded together, similarly to a book, and locked along their lateral edges. The second part further includes a disk bearing which, when the storage disk is inserted, raises the storage disk inside the disk cassette to such an extent that the storage disk is rotatable without friction.

Abstract: A removable disk system includes a disk which can be recorded on both surfaces thereof and a disk drive for recording input data on tracks on both surfaces of the disk. The disk drive includes head means having two heads for recording information on both surfaces of the disk, the disk is a selectively replaceable disk on which servo information for positioning the head is recorded, the head means is formed with a gimbal structure having liners for holding the disk therebetween by pressing the recording surfaces thereof towards each other and a symmetrical member for moving the heads towards the flexible disk held between the liners from both sides thereof and setting the heads in contact with the flexible disk and the liners maintain the contact state between the heads and flexible disk set up by the gimbal structure and the contact position is defined by the servo information.

Abstract: An optical recording and/or reproducing apparatus includes a recording and/or scanning device fitted with a lens. A current of air which blows away dust that would otherwise impair the quality of reproduction can be directed over the lens by ribs on the underside of a turntable.

Abstract: A floppy disk has a magnetic disk (1) accommodated in a casing provided with a head insertion opening. When cleaning the floppy disk, air in the casing is sucked through the head insertion opening while the magnetic disk is rotated and ionized air is blown toward the disk surface through the head insertion opening. An ionizing needle (13) ionizes the air before it hits the disc (1). Suction nozzles (12a and 12b) suck air away from the disc.

Abstract: A sealing structure is provided for sealing the optical recording medium and at least a part of an access mechanism against an outside of the apparatus when the disk cartridge is mounted at a predetermined position within the apparatus.

Abstract: An improved compact disk cleaner is provided which includes a base (12), a support table (14) rotatably mounted within the base for supporting a compact disk (16) thereon, an electric motor (18) having a shaft for rotating the support table and the compact disk within the base, a cover (22) hinged to the base and a mechanism carried on the underside of the cover for removing dust from the top surface of the compact disk, when the cover is closed over the base. The dust remover may include: a brush (30) and a fan (32 ) along with a removeable pan (34) including a filter (44 ); or a cleaning belt (62) with tracked rollers (56).

Abstract: A disk drive for information storage having at least one disk for recording data and a head actuator which includes a read/write head for reading and writing data to the disk. The disk drive includes an accessory member, such as a filter or spoiler, which is formed with an attaching part. A cabinet is used for housing therein the disk, head actuator, and accessory member. The cabinet is divided into a first cabinet part and a second cabinet part, such that the attaching part of the accessory member is sandwiched or interposed between the first and second cabinet parts and located in position inside the cabinet when the two cabinet parts are joined together. Thus, the accessory member can be attachably positioned to the disk drive inside the cabinet without using screws or other timeconsuming and costly assembly techniques.

Abstract: A cleaner unit is provided for applying a liquid cleaning solution onto the surface of an information disk, such as a so-called compact laser disk or the like. The cleaner unit includes a housing with a rotatable spindle (22) adapted to support the information disk in a generally horizontal orientation, in combination with a circulation system having a rotatable pump impeller (24) for spraying a jet of a cleaning solution onto the underside of the disk (12) near the spindle. A drive motor is operated by a control circuit for initially rotating the spindle and impeller in a first direction for spraying the cleaning solution against the spinning disk, with the rotational disk movement causing the cleaning solution to spread radially outwardly as a film over the underside disk surface. The cleaning solution is thrown from the disk periphery and is captured by an outer contoured deflector shroud (99) for recirculation to the pump impeller.

Abstract: A disc cleaning device for cleaning the surface of a disc-type recording medium comprises a belt type cleaning device which is adapted to be operated in the radial direction of the recording medium so as to clean the surface of the recording medium and a pressurizing device which presses the cleaning member against the surface of the recording medium at a region to be cleaned while keeping a cleaning surface of the cleaning device in contact with the surface of the recording medium.

Abstract: A disk drive for information storage having at least one disk for recording data and a head actuator which includes a read/write head for reading and writing data to the disk. The disk drive includes an accessory member, such as a filter or spoiler, which is formed with an attaching part. A cabinet is used for housing therein the disk, head actuator, and accessory member. The cabinet is divided into a first cabinet part and a second cabinet part, such that the attaching part of the accessory member is sandwiched or interposed between the first and second cabinet parts and located in position inside the cabinet when the two cabinet parts are joined together. Thus, the accessory member can be attachably positioned to the disk drive inside the cabinet without using screws or other time-consuming and costly assembly techniques.

Abstract: An objective lens cleaning cartridge for an optical disc drive apparatus is comprised of a cartridge body, and a cleaning member freely protruding from and retractable into the cartridge body in unison with a loading operation of the cartridge body into the disc drive apparatus, the cleaning member being slidably in contact with an objective lens of an optical pickup device provided within the disc drive apparatus.

Abstract: A lens cleaner in the form of a disk provided on a compact disk (CD) player using a method for cleaning a pick-up lend of the CD player. Some brushing hair bundles have substantially the same shape as the disk and comprise a plurality of brushing hair bundles planted on a surface of the disk so as to disperse in the circumferential direction and the radial direction. Even though these hair bundles are brought into contact with the pick-up lens, the rotational capacity of the disk is not deteriorated so that the lens surface is not damaged and the lens can be effectively cleaned.

Abstract: A book case type optical disk storage container adapted to house a cartridge type optical disk with its shutter opened, the container being characterized in that one storage surface of the container is provided with a shutter stopper for keeping the shutter open, and a projection for supporting an optical disk base rotatably, the other storage surface being provided with a disk rotating jig and a disk base cleaning device. A structure for preventing the dislocation of a spring is provided in the optical disk cartridge wherein a shutter is opened and closed in accordance with a sliding movement of a sliding jig provided in the inner portion of the shutter and joined to the spring contacting portions of cartridge case via a spring. The spring contacting portions of the cases consist of the surfaces of a contacting wall, and upper and lower walls extending from the contacting wall, the lower wall being provided with a spring dislocation preventing projection.

Abstract: In a dust removing system, the level of influence of dust sticking to an objective lens of an optical head is detected from either an amount of light emitted from the optical head and reflected from an optical head or from an access time. Three stages of levels with regard to the degree of influence of the dust are set in accordance with such detection value, and a different message for the removal of dust is indicated on a display unit in response to the level of the influence. When the influence is low, a dust removing mechanism is automatically rendered operative to remove the dust. At the first level at which the influence of dust is low, the optical disk in the optical disk device is discharged and cleaning of the objective lens is performed, and an indication is provided on the display unit representing that cleaning is proceeding.

Abstract: A laser lens cleaner and cleaning method for a compact-disc playing machine having a turntable-like compact-disc support, a laser-reading device with a laser lens facing the reflective playing surface of a compact disc, a motor for rotating the compact-disc support, and a control circuit for receiving instructions from a compact disc or a cleaning disc relative to rotating and stopping the compact-disc support. The cleaning disc is the same size as a compact disc for the playing machine. It has a reflective lower surface with a cleaning brush projecting out downwardly therefrom for contacting the laser lens. The cleaning disc also has digital, electrically coded data providing a portion containing instructions for the control circuit. The instructions instruct the control circuit via the laser lens what to do during rotation of the cleaning disc and to stop the cleaning disc when the laser lens has been cleaned.

Abstract: An optical disk apparatus for an optical disk enclosed in a disk cartridge comprises a casing for accommodating the cartridge through a cassette insertion aperture formed therein. A disk drive motor for rotating the optical disk, a loading assembly for detachably loading the cartridge on the disk drive motor, and an optical pickup device for recording data on and/or reproducing data from the optical disk are provided in the casing. Deflecting member provided for sealing the periphery of the optical pickup device against the flow of outside air introduced in the casing. A specific air-seal or door structure is provided for preventing introduction of air from the cassette insertion aperture into the casing.

Abstract: A cleaning apparatus for a pick-up lens of a compact disc player using a front loading base in which a flywheel is fixed to the axle of the cleaning brush. The flywheel is placed in rotation by the release of a compressed spring.

Abstract: The present invention provides an apparatus for cleaning a signal pick up lens in a compact disc (CD) player, which has a size similar to the compact disc for the compact disc player and can be put on a compact disc tray of the CD player and pushed into the CD player to clean the signal pick up lens therein.

Abstract: Cleaning disk of this invention contains a circular shaped body substantially identical to those of a recording optical disk and a detachable cleaner chip having a band-like cloth inserted through the notched grooves, the cleaning disk being formed with a round through hole at the position devated from the center thereof the cleaner chip being snapped in to said round through hole of said body. The cleaning disk is mounted on an optical disk system, the optical head is cleaned by the system actuation.

Abstract: The cleaning device comprises a dummy disc having at least a hole covering an area in which a control signal is to be recorded, a flexible disc member coaxially arranged on the dummy disc and secured thereto at an inner periphery thereof and a cleaning member attached on one surface of the flexible disc facing to the dummy disc and protruding downwardly through the hole of the dummy disc. The cleaning device is set on a turn table integrally attached to a rotary shaft of the disc player and made in light-pressure contact with an optical pick-up raised so that a lens surface of the pick-up is wiped away thereby during its horizontal movement. In a case where the lens collides with the cleaning member, the cleaning member is pushed up by the lens through the hole of the dummy disc due to the flexibility of the flexible disc, so that a mechanical damage of the lens surface is prevented.

Abstract: A reader/writer apparatus for an optical memory card for reading and/or writing data with respect to the optical memory card having a data storing face, which apparatus comprises a card holder including a carriage carrying and holding the card inserted and transporting the card to a reading or writing position and a feeding mechanism for driving the carriage. The reader/writer of the present invention may further comprise an optical waveguide holder holding an optical waveguide, which is connected, at a base end thereof, to the light emitting and receiving section of a reading head, so that another end of the optical waveguide may oppose a data recording face of the optical memory card. The waveguide holder is moved independently of the movement of the car holder. The reader/writer apparatus of the present invention may further comprise a regulating member for regulating the angular position of the card.

Abstract: A method and apparatus for operating a magnetic disk drive having a pole piece spaced apart from a magnetic disk surface by a predetermined distance to effectively form two plates of a parasitic capacitance capable of sustaining an undesirable electrical discharge capable of destroying data on the disk either by random discharge between the pole piece and magnetic disk or by discharge into imperfections on the disk. The invention comprises a circuit and method for applying a DC voltage to the pole piece and for simultaneously applying a DC voltage to the magnetic disk surface which is approximately equal to the DC voltage applied to the pole piece and thereby preventing the above parasitic capacitance between the pole piece and the magnetic disk surface from charging to a level sufficient to sustain any electrical discharge.

Abstract: A cleaning apparatus for a record disc comprises a support member having a top side and a bottom side. Locating means is provided for locating the support member relative to the center of a record disc. A knob is mounted on the top side of the support member for rotation about an axis offset from the locating means whereby the support member may be manually rotated about the center of the record disc. A holder for a cleaning pad is mounted on the bottom side of the support member also for rotation about an axis offset from the locating means. A drive mechanism comprising a step-up gear is provided to couple the knob and the pad holder together such that rotation of the knob relative to the support member causes rotation of the pad holder relative to the support member.

Abstract: A video cassette rewind apparatus is set forth for the rewinding of conventional video cassettes wherein the apparatus includes a counter for the selective editing and positioning of tape therein and for use in conjuction with a selectively operative electro-magnet positioned adjacent the path of the tape to be rewound to selectively erase portions of tape. Further included in the apparatus is a tape cleaning head associated with a reservoir for the cleaning of the tape.

Abstract: A reader-writer apparatus for an optical memory card for reading and/or writing data with respect to the optical memory card having a data storing face, which apparatus includes a card holder including a carriage for carrying and holding the card inserted thereon and transporting the card to a reading or writing position and a feeding mechanism for driving the carriage. The reader/writer in another aspect of the present invention includes an optical waveguide holder holding an optical waveguide, which is connected at a base end thereof to the light emitting and receiving section of a reading head, so that another end of the optical waveguide may oppose a data recording face of the optical memory card. The waveguide holder is moved independently of the movement of the card holder.

Abstract: Apparatus for transferring data and other information between a data processing unit and a rectangular memory card which includes an optically readable data memory unit having a succession of substantially concentric data storage tracks thereon, the card also including at least one microelectronic component which stores further information. Such component is connected to connection points on the surface of the card. Data is read from the tracks of the memory unit by optical scanning during rotation of the card about the axis of symmetry of the memory unit, and information is transferred between the microelectronic component and the data processing unit by an information transfer unit which is coupled to the connection points on the card and to the data processing unit.

Abstract: A diskette cleaner having first and second pad-holding assemblies for cleaning both faces of a diskette. Means associated with one of the pad-holding assemblies are provided to support a diskette for rotation between the cleaning pads and to rotate the diskette while means associated with the other of the pad-holding assemblies are provided to indicate the rotational speed of the diskette and to introduce cleaning fluid into the cleaning pads.

Abstract: A method and device for cleaning the surface of an optical high density information recording carrier. The surface of the carrier is contacted with a fluffy material having a compression resiliency under a load of 200 g of at least 40% and the carrier and the fluffy material are moved relative to each other. The device for cleaning the surface of the carrier includes a support having a fluffy material secured thereto.

Abstract: Electrostatic charge on a cassette or disc is grounded, when the latter is inserted into a player therefor through an opening formed in a front panel thereof, through a grounding path connecting a hinge pin of a flap covering the opening normally by a biasing spring associated therewith to a chassis of the player.

Abstract: A disc cleaner is disclosed. The disc cleaner includes a main casing, and a mounting structure located in the main casing to receive a disc to be cleaned. There is a lid operatively engaged with the main casing covering an upper surface of the main casing. A cleaner is mounted on an inner surface of the lid. A driving mechanism is located in the main casing. The driving mechanism is operated when the lid is positioned in a closed condition relative to the main casing. The driving mechanism is operatively connected to another mechanism for rotating and revolving the cleaner body to clean the disc.

Abstract: A cleaning apparatus for a record disc comprises a support member having a top side and a bottom side. Locating means is provided for locating the support member relative to the center of a record disc. A knob is mounted on the top side of the support member for rotation about an axis offset from the location means whereby the support member may be manually rotated about the center of the record disc. A holder for a cleaning pad is mounted on the bottom side of the support member also for rotation about an axis offset from the locating means. A drive mechanism comprising a step-up gear is provided to couple the knob and the pad holder together such that rotation of the knob relative to the support member causes rotation of the pad holder relative to the support member.

Abstract: A protective jacket for recording media, in particular flexible recording media, is provided with a network or grid of conductor paths (6) to counteract electric charges, Advantageously, the jacket blank (1) is coated uniformly, in particular on both sides, with linear conductor paths (6). The protective jacket can be used for storing any recording media outside a recording/playback apparatus, or for operating any recording media inside such an apparatus. It is advantageous if, in the areas in which the blank (1) is welded to form a partially or completely closed jacket after folding, a conductor path grid or network is provided so that areas which are free of the conductive layer and are of prescribed dimensions are available between the conductor paths, such areas being necessary for welding.

Abstract: A CD cleaner includes a rotary plate on which a CD can be loaded and unloaded and which is supported so as to be capable of corotation with the CD. The rotary plate is mounted on a base so as to be rotatable about a vertical shaft. A unidirectional rotating mechanism is interposed between the rotary plate and the base, and a supporting guide member is movably mounted on the base. Mounted on the guide member is a wiping device which undergoes reciproactive motion in a direction which intersects the rotating direction of the CD supported on the rotary plate.

Abstract: A kit for cleaning phonograph records including cleaning fluid, a brush and a record vacuum cleaning attachment apparatus. The record vacuum cleaning attachment apparatus is adapted to attach to a wet/dry shop vacuum cleaner which causes a suction to emanate from a longitudinal slot in the lower surface of the record vacuum cleaning attachment apparatus. The suction emanating from the longitudinal slot of the record vacuum cleaning attachment apparatus safely removes the dirt, dust, grease, grime and chemicals which are suspended in the cleaning fluid applied to the playing surface of the phonograph record.

Abstract: A compact disc cleaning device contains cleaning pads located on a wall of a housing. A housing cover has an elongated slot and a post assembly is slidably received therein. The post assembly engages the central opening of a compact disc placed within the housing so that upon linear movement of said post in said elongated slot, the compact disc is cleaned with a substantially radial cleaning motion. The device can contain pivot surfaces on side regions of the house to slightly rotate the disc upon movement of the post assembly in the elongated slot.

Abstract: A cleaning device for cleaning a compact disc record when the record is in its case comprises a housing rotatable about a spindle for engaging the central portion of the base of the record case. A cleaning member with soft bristles is rotatable in the housing and connected to the spindle through a gear train within the housing. The cleaning member is tiltable relative to the housing to ensure even distribution of pressure over the cleaning surface of the cleaning member. Resilient members on the carrier member bear on a frictionless ring of the housing to accommodate tilting of the cleaning member.

Abstract: Cleaning apparatus for a compact disc comprises a housing, a rotatable carrier disposed in the housing, a cleaning pad fastened to the carrier for contacting the surface of the compact disc, a drive wheel for driving the carrier to rotate the latter about an axis of rotation and concurrently to cause that axis of rotation to move along a predetermined path, and a constraint for constraining that path of movement to a curved path, whereby the carrier and its cleaning pad exhibit planetary movement of both rotation and revolution.

Abstract: A support apparatus which allows a user to hold a phonograph record in one hand without contacting any playing surface thereof. The apparatus has an elongated body wih a spindle extending normally from one end thereof and a substantially curvilinear hook extending from an opposite end in a plane substantially perpendicular to a central axis of the spindle. The spindle defines a notch therein facing the hook. Extending from the body at an intermediate portion between the spindle and hook is a record support pedestal having an upper surface of contact. When in operation, the spindle is inserted into the central opening of a phonograph record and the user engages a thumb in the hook and the remaining fingers of the same hand are engaged with the outer edge of the record. By squeezing the thumb and fingers together, the inner edge of the record engages the notch in the spindle, and a side of the record rests on the upper surface of the pedestal.

Abstract: The brush comprises a flexible reed having a mounting portion for attachment to the cassette such that the reed can be held adjacent the tape path, a tape contact zone being provided at the opposite end to the mounting portion having a contact liner adhering on one side of the reed and having a flap extending, at the opposite end to the mounting portion, beyond a tape contacting edge.

Abstract: A head cleaning apparatus wherein in a case formed to the same shape and dimension of a hard case of hard-cased floppy disk a cleaning sheet formed to the same shape and dimension of the magnetic disk of floppy disk is rotatably placed and a cleaning liquid supplier is provided to the case to supply the cleaning liquid to the cleaning sheet as the cleaning liquid is injected under pressure from outside.

Abstract: A disk cleaning mat wherein in the surface of a mat body first, second and third annular recesses for holding an LP disk, EP disk and a compact disk, respectively, are provided, and grounding portions electrically connected to the reverse side of the mat body are mounted on the respective recesses. The first and second recesses are concentric with each other, while the third recess is centered at a point offset from the common center of the first and second recesses.