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Syquest Technology, Inc. Patents
Assignee:
Syquest Technology, Inc.
Address:
Fremont, CA
No. of patents:
32
Patents:




Patent Number Title Of Patent Date Issued
D383452 Removable cartridge disk drive September 9, 1997
D367579 Case for a removable disk drive cartridge March 5, 1996
D363926 Cartridge with a 1.8 inch form factor for a removable cartridge disk drive November 7, 1995
D350115 Cartridge with a 1.8 inch form factor for a removable cartridge disk drive August 30, 1994
D342062 3-1/2 inch disk cartridge December 7, 1993
D339798 Removable cartridge with a 21/2 inch form factor for a disk drive September 28, 1993
6456456 Removable cartridge disk drive with a receiver for receiving a cartridge housing a hard disk September 24, 2002
A disk drive 100 capable of receiving a cartridge 20 having a disk 42 with a diameter of about 3.5 inches which can contain at least 105 megabytes of data includes an operating mechanism 112 for initiating and controlling the positioning of an actuator arm 176 upon which is mounted a rea
6430005 Removable cartridge disk drive with a receiver for receiving a cartridge housing a hard disk August 6, 2002
A disk drive 100 capable of receiving a cartridge 20 having a disk 42 with a diameter of about 3.5 inches which can contain at least 105 megabytes of data includes an operating mechanism 112 for initiating and controlling the positioning of an actuator arm 176 upon which is mounted a rea
6333834 Rattle reduction mechanism in a removable cartridge for a disk drive December 25, 2001
A removable cartridge for a disk drive where the cartridge has a housing, a disk contained within the housing and a mechanism for reducing the rattling of the disk when the cartridge is not inside the disk drive and for permitting the free rotation of the disk when the cartridge is insid
6118603 Disk with fault-tolerant sample-data servo pattern September 12, 2000
A headerless, fault-tolerant sample-data servo pattern, comprising an alternating sequence of first and second servo sectors, with the first servo sectors each including a partial track address and circumferential orientation information, and the second servo sectors each including a
6049444 Rotatable door and door opening mechanism for a cartridge April 11, 2000
A cartridge adapted to be inserted into a disk drive where the disk drive includes a read/write head and a finger for engaging the cartridge. The cartridge includes a housing defining a cartridge door port and a door control port, a rotatable media within the housing, a door that rotates
5886846 Method for applying optimal seeking technique to disk file with excessive repeatable runout March 23, 1999
A method for applying an optimal seeking technique to a disk file with excessive repeatable runout includes a method of modifying a control signal for a rotary actuator arm of a disk drive. The control signal is modified during track seeking by adding a runout state that is calculated
5831790 Removable cartridge disk drive with a compact mechanism for engaging the disk cartridge and driv November 3, 1998
A disk drive (30) conforms to the 1.8 inch form factor through of use of, for example, a removable cartridge (200) which has a disk (220) mounted on the hub (226) which hub (226) is manipulatable by a multifunction handle (58) of the disk drive (30), allowing the hub (226) to be seated o
5822162 Removable cartridge disk drive utilizing a registration contour in combination with a cartridge October 13, 1998
A cartridge 52 adapted for being inserted into a disk drive 50 includes a housing 70 which contains a disk 256 mounted for rotation and an interlocking device 90 defined in the housing 70 and adapted for automatically lockingly positioning the cartridge 52 in the disk drive 50 as the
5777813 Method and apparatus for reducing sideband interference when storing or retrieving data in a dis July 7, 1998
A disk drive system having downward compatibility includes a read/write head and a feedback servo controller for reading and writing information to and from a removable disk cartridge. When writing information to the data tracks of magnetic medium of a lower-capacity disk cartridge, in
5724216 Removable cartridge which may be mounted to a disk drive spindle motor without relative movement March 3, 1998
A removable cartridge (200) for a disk drive (30) which has a 1.8 inch form factor, has multifunction features which allow for high data storage capacity at a reduced size. The cartridge (200) includes a cartridge screw (206) which engages the cartridge nut (221) defined in the cartridge
5699210 Disk drive for receiving a removable cartridge and method of inserting the cartridge December 16, 1997
A removable cartridge disk drive includes a removable cartridge adapted to be received by a disk drive having a base plate and right and left guide walls. The cartridge inserts into the drive at an angle with the aid of a movable slider attached to one of the guide walls. Once inserted,
5550685 Applying an adaptive feed-forward algorithm as a frequency selective filter in a closed loop dis August 27, 1996
A method for applying an adaptive feed-forward waveform correction to a primary servo loop compensation signal in a rotating data storage apparatus. A position error signal is used to determine a fixed feed-forward correction upon initialization or other predetermined conditions. An
5535072 Removable cartridge disk drive with cartridge interlocking and spindle motor telescoping mechani July 9, 1996
A disk drive 50 for receiving a removable cartridge 52 containing a disk 256 for storing data. The disk drive 50 includes a spindle motor 102 for engaging and causing the disk 256 of the cartridge 52 to spin at an appropriate speed and a mechanism 168 for mounting the spindle motor 102
5526212 Technique for generating audible signals in a disk drive employing a voice coil actuator June 11, 1996
A disk drive employing a voice coil actuator to position a read/write head over a magnetic disk retracts the read/write head from the magnetic disk surface and passes an audio frequency alternating current through the voice coil to produce a corresponding movement in the read/write head
5523902 Servo burst pattern for removing offset caused by magnetic distortion and method associated ther June 4, 1996
An alternating "A/B" servo burst pattern for measuring and compensating for offset of the track centerline due to differential magnetic influence to the servo pattern, and a switching network to alternate the output of the servo system demodulators between the inverting and non-inverting
5444586 Removable cartridge for a disk drive with a 1.8 inch form factor August 22, 1995
A removable cartridge 200 for a disk drive 30 which has a 1.8 inch form factor, has multifunction features which allow for high data storage capacity at a reduced size. The cartridge 200 includes a cartridge screw 206 which engages the cartridge nut 221 defined in the cartridge housing
5440436 Removable cartridge disk drive with a 1.8 inch form factor August 8, 1995
A disk drive 30 conforms to the 1.8 inch form factor through of use of, for example, a removable cartridge 200 which has a disk 220 mounted on the hub 226 which hub 226 is manipulatable by a multifunction handle 58 of the disk drive 30, allowing the hub 226 to be seated on the spindle mo
5422775 31/2 inch removable cartridge for a disk drive June 6, 1995
A cartridge 20 for a disk drive 130 includes a door 44 which can be urged from a closed position to an opened position which is substantially within the cartridge 20 and located in a plane substantially parallel to the disk 42 contained in the cartridge 20. The cartridge 20 includes a mo
5400201 Servo burst pattern for removing offset caused by magnetic distortion and method associated ther March 21, 1995
An alternating "A/B" servo burst pattern for measuring and compensating for offset of the track centerline due to differential magnetic influence to the servo pattern, and a switching network to alternate the output of the servo system demodulators between the inverting and non-inverting
5398141 Removable cartridge disk drive with a 2.5 inch form factor utilizing a cartridge having a rotata March 14, 1995
A cartridge 52 adapted for being inserted into a disk drive 50 includes a housing 70 which contains a disk 256 mounted for rotation and an interlocking device 90 defined in the housing 70 and adapted for automatically lockingly positioning the cartridge 52 in the disk drive 50 as the
5317464 Removable cartridge disk drive with cartridge interlocking and spindle motor telescoping mechani May 31, 1994
A disk drive 50 for receiving a removable cartridge 52 containing a disk 256 for storing data. The disk drive 50 includes a spindle motor 102 for engaging and causing the disk 256 of the cartridge 52 to spin at an appropriate speed and a mechanism 168 for mounting the spindle motor 102
5280403 31/2 inch removable cartridge for a disk drive January 18, 1994
A cartridge 20 for a disk drive 130 includes a door 44 which can be urged from a closed position to an opened position which is substantially within the cartridge 20 and located in a plane substantially parallel to the disk 42 contained in the cartridge 20. The cartridge 20 includes a mo
5262918 Removable cartridge with a 2.5 inch form factor and an interlocking mechanism adapted for use in November 16, 1993
A cartridge 52 adapted for being inserted into a disk drive 50 includes a housing 70 which contains a disk 256 mounted for rotation and an interlocking device 90 defined in the housing 70 and adapted for automatically lockingly positioning the cartridge 52 in the disk drive 50 as the
5218503 31/2 inch removable cartridge for a disk drive June 8, 1993
A cartridge 20 for a disk drive 130 includes a door 44 which can be urged from a closed position to an opened position which is substantially within the cartridge 20 and located in a plane substantially parallel to the disk 42 contained in the cartridge 20. The cartridge 20 includes a mo
5175657 Disc drive with magnetic coupling to a head actuator in a removable disc cartridge and with spin December 29, 1992
A disc drive (420) includes a spindle motor (432) having a stator assembly (436) which is provided in a radial gap configuration. A removable cartridge (422) includes a rotor assembly (472) mounted on a bearing arrangement (468) which additionally mounts the disc (430) contained in t
4974103 High density disc drive with magnetic clutch for use with a sealed removable cartridge November 27, 1990
A disc drive 20 including a spindle motor assembly 42 having a magnetic clutch plate 46 and an actuator 47 receives a hermetically sealed cartridge 22 containing a plurality of discs 72, 74 with associated heads 80, 81 mounted in the cartridge 22. Associated with an arm assembly 84 w

 
 
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