Class 720/698 - Dampening

Subclass of Class 720 - Dynamic optical information storage or retrieval
Definition: Subject matter comprising means for reducing vibrations
No. of patents: 28
Last issue date: 06/09/2009

Number	Title	Issue Date
7546615	Disc drive A disc drive includes a base, a traverse plate secured to the base, a loading frame mounted to the base, and a spindle motor mounted to the loading frame. The traverse plate supports a pick-up unit thereon. The loading frame is separated from the traverse plate, and...	06/09/2009
7403380	Computer case with optical disk drive mounted on chassis front Disclosed herein is a newly-designed computer case with an optical disk drive mounted on a chassis front, in which an optical disk drive such as a compact disk player (CDP), a digital video disk player (DVDP) and the like is mounted on a chassis front the computer c...	07/22/2008
7393575	Sheet molding compound damper component, and methods for making and using the same A damper component for absorbing and dissipating vibration and/or noise resonating from a device is provided. The damper component includes a viscoelastic damper layer, and a continuous constraining layer intimately contacting and encasing the damper layer. The cons...	07/01/2008
7370341	Disk driving apparatus and method of manufacturing the same A disk driving apparatus includes a base chassis which mounts thereon a spindle motor to rotatably drive a disk, and a pickup device to at least record information on or reproduce information from the disk rotated by the spindle motor while moving in a radial direct...	05/06/2008
7367037	Disk player, and turntable incorporating self-compensating dynamic balancer, clamper incorporating self-compensating dynamic balancer and spindle motor incorporating self-compensating dynamic balancer adopted for disk player A disk player having a self-compensating dynamic balancer which can limit internal vibrations generated by an eccentric center of gravity of a disk, and a turntable, a clamper and a spindle motor which incorporate a self-compensating dynamic balancer. The self-compe...	04/29/2008
7272837	Disk tray for disk drive adopting resonator and disk drive having the same A disk tray for a disk drive that slides in and out of the disk drive, one or more resonators mounted on a lower surface of the disk tray to selectively reduce noise of a predetermined frequency band. According to the present invention, the dominant resonance noise ...	09/18/2007
7260821	Disk driving apparatus A disk driving apparatus includes a base chassis supported in a cabinet through an elastic body, and equipped with a spindle motor to rotate and drive a disk and a pickup moving radially with respect to the disk rotated by the spindle motor. Preferably, the base cha...	08/21/2007
7237246	Position adjustment and damper mechanism for an optical disk drive A position adjustment method includes forming a plurality of bores on a tray, forming a plurality of through holes in a mounting plate corresponding to the bores on the tray, installing a plurality of screws into the through holes, and threading a plurality of nuts ...	06/26/2007
7185350	Disk drive adopting vibration absorber A disk drive including a spindle motor rotating a disk, a pickup unit accessing the disk, a frame where the spindle motor is installed, and a vibration absorber installed on the frame to absorb vibrations due to rotation of the disk, that vibrates in a direction in ...	02/27/2007
7172800	Sheet molding compound damper component, and methods for making and using the same A damper component for absorbing and dissipating vibration and/or noise resonating from a device is provided. The damper component includes a viscoelastic damper layer, and a continuous constraining layer intimately contacting and encasing the damper layer. The cons...	02/06/2007
7117511	Car-mounted disc player A car-mounted disc player with an elastically supported drive unit including a turntable and a pickup; a clamper-supporting member rotatably supporting a clamper; a clamp mechanism for activating the clamper-supporting member to move toward or away from the drive un...	10/03/2006
7038878	Micromover configured to move a magnetic storage medium in perpendicular directions in a plane A storage device comprising a magnetic storage medium mounted in a first plane, a read and write mechanism mounted in a second plane that is parallel to the first plane and configured to write information to the magnetic storage medium, and a micromover configured t...	05/02/2006
6834393	Disk device A disk drive including a motor that rotates a disk, an auto-balancer connected to a rotating portion of the motor, a base secured to the motor and connected to an external member via a first elastic member, and a dynamic vibration absorber connected to the base via ...	12/21/2004
6683840	Vibration damper device for disk drive A vibration damper device for a disk drive which is equipped in a desktop computer or image reproducing apparatus and which includes a pick-up unit having a pick-up. A pick-up supporting unit has an upper supporting member and a lower supporting member po...	01/27/2004
6678234	Method for reducing vibration of motor having carrier interface A method for reducing vibration of a motor having a carrier interface. First, a rotor having a carrier interface and a shaft is provided. A rough sheet is mounted to the carrier interface to fix the object disposed thereon. Then, the rough sheet is polish...	01/13/2004
6045113	Frame damper The present invention employs a high elastic body with E value more than 1.2×104 kg/cm2 as the high elastic body to be used for a body frame which supports a mechanical chassis of optical disk equipment or the like, while it also em...	04/04/2000
5768249	Damper for an optical disk drive A damper for an optical disk drive connected between a frame and a base on which a turntable is rotatably installed, for damping vibrations transmitted to the turntable. The damper has a vertical absorption space for absorbing vertical vibration, a horizo...	06/16/1998
5732063	Optic disk drive vibration absorbing device An optic disk drive includes a casing, the inside of which a driving unit is arranged. The driving unit includes a motor for rotating a disk driving wheel mounted therein. A disk holding arm is pivoted to the casing and extends above the casing to define ...	03/24/1998
5625511	Stepped spindle motor shaft to reduce disk drive acoustic noise A spindle motor shaft having variable geometrical features for adjusting the torsion mode frequency of the shaft/stator assembly. The variable geometric features allow the torsion mode frequency to be tuned away from the driving force frequency of the mot...	04/29/1997
5416762	Improved disc cartridge and recording and/or reproducing apparatus having means for positioning a turntable and disc cartridge support structure and means for reducing vibrations A disc recording and/or reproducing apparatus includes a holding device for holding a disc cartridge which is a cartridge main body and a disc housed in the cartridge main body, a rotating and driving device for rotationally driving the disc housed within...	05/16/1995
5218598	Disc driving apparatus with magnetic means for preventing axial movement A disc driving apparatus comprises a motor, a turntable which is rotated by a driving force of the motor and supports a disc on one side thereof, a fixed supporting portion for rotatably supporting the turntable, and magnetic means for always generating a...	06/08/1993
5166918	Loading mechanism for disk cartridges with vibration reducing mechanism A loading mechanism for a data storage device is provided in which the data storage device is housed in a cartridge. The loading mechanism includes a mounting frame. A holder is mounted on the frame and receives and maintains the cartridge in place. A cha...	11/24/1992
5060209	Optical information recording and reproducing apparatus with vibration attenuating mechanism An optical information recording and reproducing apparatus comprising a disc motor rotating a photodisc, a light pickup radiating a light beam to this photodisc and at least recording, reproducing or erasing information, a linear motor moving this light p...	10/22/1991
4833667	Spindle motor assembly for low acoustic noise environments A mounting structure for a spindle motor assembly is disclosed that is capable of reducing acoustic noise generated by the motor assembly. Standard spindle motor assembly parts are provided with a viscoelastic stator mounting system that isolates and damp...	05/23/1989
4794588	Optical disk player An optical disk player wherein a chassis having an optical pickup, a disk table and the like mounted thereon is supported by a frame using elastic support means at a plurality of positions, a vessel filled with a viscous fluid and sealed is provided at ei...	12/27/1988
4766587	Electrical apparatus such as a disc-record player, comprising a mounting device for a drive motor An electrical apparatus such as a disc-record player, comprises a mounting device for a drive motor (7). The motor housing (6) is resiliently suspended on fixed motor supports (4) in the housing (1) of the apparatus so as to be in a radial direction with ...	08/23/1988
4731777	Optical disk player In an optical disk player according to this invention, a movable chassis mounted with an optical pickup, a turntable and the like is supported by springs joined with respective positions of a frame, and in this optical disk player, dampers are inserted be...	03/15/1988
4458347	Record centering and decoupling devices for turntables Methods and devices are provided for accurately centering a record upon the platter of a turntable before play thereof and for isolating the record from the spindle of the turntable while the record is being played, in order to decouple the tonearm from m...	07/03/1984

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Class 720/698 - Dampening