Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 6781782 | Method and apparatus for saving calibration parameters for a removable cartridge An information storage device (10, 510, 610, 710, 810) includes a cradle (12, 512, 612, 712, 812) which can removably receive a cartridge (11, 411, 511, 611, 711) that contains a rotatable hard disk (91, 326-327). A read/write head (10... | 08/24/2004 |
| 6710979 | Method and system for head retraction in a data storage device An improved actuation system for a data storage device. In one exemplary embodiment, a head retraction mechanism is movable in a head retraction direction between a head recording position and a head parked position, and an actuator remains engaged with the mechanis... | 03/23/2004 |
| 6633445 | Method and apparatus for electrically coupling components in a removable cartridge An information storage device (10, 510, 610, 710) includes a cradle (12, 512, 612, 712) which can removably receive a cartridge (11, 411, 511, 611, 711). The cartridge contains a rotatably supported disk (91, 326-327), and a pivotal actuator arm (101) whi... | 10/14/2003 |
| 6628474 | Method and apparatus for electrostatic discharge protection in a removable cartridge An information storage device (10, 510, 610, 710) includes a cradle (12, 512, 612, 712) which can removably receive a cartridge (11, 411, 511, 611, 711) that contains a rotatable hard disk (91, 326-327). The cartridge contains a pivotal actuator arm (101)... | 09/30/2003 |
| 6624979 | Method and apparatus for parking and releasing a magnetic head An information storage device (10, 510, 610, 710) includes a cradle (12, 512, 612, 712) which can removably receive a cartridge (11, 411, 511, 611, 711). The cartridge has a sealed housing (59) which contains a rotatably supported disk (91, 326-327), and ... | 09/23/2003 |
| 6590731 | System and method for adaptive soft head loading of disk drive head onto disk medium A head loading apparatus and method for a disk drive device adapts the head load characteristics of a disk drive in order to minimize the velocity of the heads during loading of the heads onto the surface of a data storage medium. The apparatus is charact... | 07/08/2003 |
| 6587304 | Interchangeable cartridge data storage system for devices performing diverse functions A system for exchanging digital data among a plurality of hand-held computer devices. Digital signals are written by a first hand-held device to a mini-cartridge that mini-cartridge is inter-operable among a class of hand-held device, each of which is equ... | 07/01/2003 |
| 6583945 | Method for irreversibly write-securing a magnetic storage cartridge A data cartridge and method for providing a write-securable storage medium that inhibits writing. The medium comprises a write-secure-type indicator in a predefined location that indicates the medium is of a type that is susceptible to write securing. Add... | 06/24/2003 |
| 6583959 | Read write head assembly having air bearing features for contaminant control in flexible media head-disk interface An improved head assembly having air bearing features for contaminant control in flexible media high contact-pressure zone. The head assembly having one or more air bearing features for improving the performance of the heads by controlling a flow of conta... | 06/24/2003 |
| 6580584 | Head assembly having leading edge step scheme for tuned air entrainment An improved head assembly having a leading edge step scheme for tuned air entrainment for improved head performance in higher capacity disk drives. The head assembly having a tuned leading edge step scheme improves the performance of the heads by controll... | 06/17/2003 |
| 6578164 | Method for detecting transient write errors in a disk drive having a dual transducer slider In a magnetic or optical disk drive the integrity of data written on a disk is verified by writing data to a portion of the disk, and immediately reading the data from the disk after it has been written. If there is error in reading the data and/or the da... | 06/10/2003 |
| 6578152 | Dual power switching network system for isolating between different power supplies and applying appropriate power supply to a connected peripheral device In a computer system in which a peripheral device is connected to a host computer through two busses each of which has a power supply, a power switching network turns first and second solid state switching devices (FET's) on and off to supply power to the... | 06/10/2003 |
| 6577506 | Card type electronic device A card-type electronic device comprises a casing (4) composed of a rectangular frame (5) and two covers (6, 7) individually covering the upper and lower surfaces of the frame (5). Substantially U-shaped retaining pieces (11a, 11b) are formed by bending to... | 06/10/2003 |
| 6574071 | Disk drive with helically mounted disk drive motor A disk drive receives a removable storage disk thereinto and has a frame and a disk motor helically mounted thereto for engaging the disk and applying a rotating force thereto. The motor has first threads integral therewith and the frame has second, matin... | 06/03/2003 |
| 6557058 | Method and apparatus of sustained sequential data transfer in a media drive A disk drive that sustains a constant rate to a host and provides a method for allowing retries and accesses to reallocated sectors if the disk drive's recent historical performance has been sufficient to guarantee that the minimum transfer rate will be m... | 04/29/2003 |
| 6557113 | Synchronization recovery technique for storage media The present invention relates to a data recovery technique for recovering unrecoverable data from a sector having a synchronization field damaged after formatting time or a synchronization mark that has been written improperly. The present invention may t... | 04/29/2003 |
| 6557125 | System and method for generating a defect map for a data-storage medium without the use of a hard index A defect map for a data-storage medium is generated without the use of a hard index on the medium. The servo sectors normally written to the medium during formatting operations are utilized to identify the angular positions of defective data sectors. The ... | 04/29/2003 |
| 6555043 | Method of making a carriage assembly for a disk drive This invention includes a carnage assembly for carrying read/write heads into engagement with a recording medium. The carriage assembly comprises a carriage body formed from molded plastic. The body defines a sidewall having a first open end and a second ... | 04/29/2003 |
| 6552869 | Magnetic storage card When a lower head (34b) mounted on a lower head arm (32b) is in a standby position permitting no access to a magnetic recording disk (13), the lower head arm (32b) is housed in an opening (37) formed in a frame plate (3). Thus, the lower head arm (32b) an... | 04/22/2003 |
| 6549506 | Photo detector mounting in a head gimbal assembly used in an optical data storage device An optical head has a head gimbal assembly on which a light emitting laser is mounted. A tab extends from the assembly and a photo-detector is mounted on the tab. The tab extends from the load beam of the head gimbal assembly. Alternatively, the tab exten... | 04/15/2003 |
| 6542336 | Inertial latch for head protection in a linear head actuator removable data storage drive An inertial latch for a linear actuator disk drive includes a carriage assembly carrying read/write heads linearly into and out of engagement with a recording medium. An arm rotating about a pivot has one end which engages the latch, and a counterweight o... | 04/01/2003 |
| 6539496 | Method for preventing repeating non-recoverable read errors at same physical location on data storage media Methods are provided for preventing data from being written to a data sector that has been identified as faulty on a disk in a disk drive system. It is first determined whether data of a data sector of a portion of a disk is recoverable. If the data is no... | 03/25/2003 |
| 6529992 | Self-contained application disk for automatically launching application software or starting devices and peripherals A system and method for automatically executing a participating application upon insertion of a removable media into a computing device. When the computing device detects that the removable media containing has been inserted, a task disk control file is r... | 03/04/2003 |
| 6515818 | Track follow at quarter track with narrow heads using non-conventional ordering of quadrature fields A method and apparatus for performing track follow and seeking at quarter track positions that uses a non-conventional ordering of the servo fields at the quarter track positions, wherein C-A or D-B is used to track follow at-1/4 track positions and A--D ... | 02/04/2003 |
| 6504668 | Disk drive having improved runout-error compensation, and method therefor A disk drive has a servo controller that compensates for repeatable runout between the drive's data-transducing head and a data-storage disk disposed within the drive. The drive incorporates an improved runout-compensation technique by which a runout-erro... | 01/07/2003 |
| 6496362 | Method and apparatus for protecting a hard disk drive from shock An information storage device (10) includes a cartridge (14) which can be removably inserted into a cradle (13) coupled by a cable (12) to a host computer. The cartridge includes an outer housing (54) containing a chamber (122), and having an electrical c... | 12/17/2002 |
| 6487049 | Drive heads for storage media drive with displaced pair of sensors A pair of opposing drive heads are positioned in a storage media drive to read and/or write a storage media interposed therebetween. Each drive head has a sensor face that includes first and second parallel longitudinally extending air-bearing surfaces. E... | 11/26/2002 |
| 6470535 | Camming belt clip A belt clip for attaching a device to a user includes a back plate having first and second wing portions which include flanges for engaging with the exterior surface of an electronic device. The first and second wing portions are coupled together by an in... | 10/29/2002 |
| 6466406 | Data-storage cartridge having one or more surface recesses for improved internal air circulation A data-storage cartridge comprises an outer shell having an inner surface. The data-storage cartridge also comprises a data-storage medium having an outer peripheral edge and a centrally-disposed hub. The data-storage medium is rotatably disposed within t... | 10/15/2002 |
| 6459545 | Use of matte materials to reduce signal pollution in cartridge detection circuitry A data storage cartridge for a data storage disk drive has a marker including a latent illuminance material such as phosphor. A matte material on the cartridge or within the marker diffusely reflects charging light that is not absorbed by the latent illum... | 10/01/2002 |
| 6452741 | Magnetic recording device with deformation-proof element A frame plate (19) is mounted to the inside of a case (4) of a magnetic recording device. (1), and a disk drive motor and a head body (5) are mounted to the frame plate (19). A member (88) for preventing the deformation of the case is provided between the... | 09/17/2002 |
| 6445523 | Readable indelible mark on storage media A storage media is disclosed and comprises a storage body and a readable indelible mark formed in the body such that portions thereof are indelibly altered. The mark is read by writing first data to the body in the region of the mark, and reading second d... | 09/03/2002 |
| 6441997 | Anti-rattle mechanism for cartridge A cartridge for a magnetic disk drive having a clamping mechanism which is actuated as the door to the cartridge is closed is disclosed. The cartridge is closed when he cartridge is removed from the drive. The door covers the opening through which the car... | 08/27/2002 |
| 6365904 | System and method of heat signature verification/authentication of an object The validity or authenticity of a latent illuminance material is established by heating or cooling the material to a predetermined temperature and then determining its decay time constant at that temperature. If the decay time constant is substantially eq... | 04/02/2002 |
| 6360466 | Data storage cartridge with multiple labels A data storage cartridge has a stack of labels on one surface thereof. The labels are bound together by semi-tacky adhesive. The stack of repositionable, self-sticking, removable labels has a finger relief feature at one comer thereof. The cartridge has a... | 03/26/2002 |
| 6362935 | Chamfered head for enhanced loading onto media A read/write head for use in a disk drive having chamfered surfaces reducing possible damage to the head assembly and/or media during loading and unloading of heads form media surface. In an inadvertent collision between the media and head assembly, the m... | 03/26/2002 |
| 6359745 | Latent illuminance discrimination marker system for data storage cartridges A data storage cartridge for a data storage disk drive has a latent illuminance marker. A light source illuminates the marker and the marker emits illuminance as phosphorescence. A photosensor detects the emitted illuminance, and the decay time is determi... | 03/19/2002 |
| 6359756 | Disk drive having a system for protecting the read/write heads An improved disk drive includes an improved operating system, an improved eject system, an improved head retract system and an improved motor loading system. In a preferred embodiment of the operating system it includes a motor, an eject crank, a head cra... | 03/19/2002 |
| 6351340 | AC erase system and method for data storage media A system and method for AC erasing fields on tracks in a disk is provided. An AC three-pass write technique is used in a disk drive to erase old data from an older generation, wide track disk with a newer generation, narrower read/write head, and write ne... | 02/26/2002 |
| 6347070 | Plastic clamp with hub and platter for use in disc drive A disc assembly, a method for producing the disc assembly, and a corresponding disc drive for recording and reading digital information is disclosed. The disc assembly is assembled without using mechanical fasteners and adhesives. The disc assembly includ... | 02/12/2002 |
