IP Library › Assignment 007152/0815

Patent Assignment

Reel/Frame 007152/0815

Security Interest

Recorded: 1994-10-04 Pages: 40

View PDF Order Certified Copy

Assignor

QUANTUM CORPORATION

Executed: 1994-10-03

Assignee

CANADIAN IMPERIAL BANK OF COMMERCE, AS ADMINISTRATIVE AGENT

TELLERMAN, ARLENE, 425 LEXINGTON AVENUE 7TH FLOOR, NEW YORK, NEW YORK, 10017

Covered Properties (385)

Transducer Positioning System for Rotating Disk Drive Units

Patent: 4,208,679 →

Application: 05/882,127 →

Reader for Data Recorded on Magnetic Disks at Plural Densities

Patent: 4,231,071 →

Application: 05/925,534 →

Differential Linear Velocity Transducer

Patent: 4,260,914 →

Application: 06/024,605 →

Digital Velocity Servo

Patent: 4,380,723 →

Application: 06/046,130 →

Rotary Actuator Assembly for Disk Drive Head Positioner

Patent: 4,346,416 →

Application: 06/126,129 →

Drive Belt Release Mechanism for Magnetic Disk Drives

Patent: 4,338,642 →

Application: 06/136,541 →

Device for Synchronizing a Clock Pulse Generator with a Serial Data Signal

Patent: 4,325,090 →

Application: 06/141,715 →

Positioning System and Formattijng Scheme for Magnetic Tape Media

Patent: 4,321,632 →

Application: 06/148,055 →

Method and Apparatus for Dividing a Track on a Magnetizable Information Storage Disc into Sectors

Patent: 4,366,512 →

Application: 06/168,843 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 4,396,959 →

Application: 06/190,198 →

Dual Mini-Disk Drive

Patent: 4,383,283 →

Application: 06/191,834 →

Transducer Positioning System and Data Disk Therefor

Patent: 4,390,912 →

Application: 06/206,008 →

Multiple Error Detecting and Correcting System Employing Reed-Solomon Codes

Patent: 4,413,339 →

Application: 06/277,060 →

Lightweight Dual Head SUPP0RT Assembly for Magnetic Disk Drives

Patent: 4,422,115 →

Application: 06/283,163 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 4,419,701 →

Application: 06/304,209 →

Method of Mounting a Magnetic Head Unit on a Movable Carrier

Patent: 4,391,035 →

Application: 06/305,313 →

Memory Controller with Data Rotation Arrangement

Patent: 4,500,958 →

Application: 06/370,572 →

Arrangement for Encoding and Decoding Information Signals

Patent: 4,503,420 →

Application: 06/375,931 →

Phase Detector Circuit

Patent: 4,484,142 →

Application: 06/375,932 →

Qualifier Circuit

Patent: 4,495,529 →

Application: 06/375,933 →

Adaptive Misposition Correcting Method and Apparatus for Magnetic Disk Servo System

Patent: 4,536,809 →

Application: 06/376,972 →

Disk Hub Spindle System

Patent: 4,503,530 →

Application: 06/382,550 →

Aerodynamically Released Safety Latch for Data Transducer Assembly in Rotating Rigid Disk Data Storage Device

Patent: 4,538,193 →

Application: 06/439,897 →

Pure Torque,Limited Displacement Transducer

Patent: 4,490,635 →

Application: 06/442,129 →

Amplifier Circuit

Patent: 4,538,099 →

Application: 06/458,450 →

Rotating Rigid Disk Data Storage Device

Patent: 4,516,177 →

Application: 06/475,599 →

Vertically Loading Head Module for Magnetic Disk Drive

Patent: 4,630,158 →

Application: 06/483,340 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 4,660,106 →

Application: 06/496,924 →

Magnetic Tachometer for Disk Drives

Patent: 4,622,516 →

Application: 06/505,047 →

Read/Write Head Positioner Arrangement

Patent: 4,631,611 →

Application: 06/529,840 →

Optical Encoder with Digital Gain Compensation Controlling Source Intensity

Patent: 4,593,194 →

Application: 06/538,811 →

Mounting Assembly for an Optical Encoder Apparatus and Methods

Patent: 4,625,109 →

Application: 06/555,591 →

Magnetic Plated Media and Process Thereof

Patent: 4,581,109 →

Application: 06/560,478 →

Mechanism for Joining Tape Leaders

Patent: 4,662,049 →

Application: 06/578,766 →

Means for Pulling Tape from a Reel

Patent: 4,572,460 →

Application: 06/579,776 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 32,075 →

Application: 06/596,438 →

Optical Encoder Having Controllable Lead -Lag Phase Trim Sensitivity

Patent: 4,647,769 →

Application: 06/609,224 →

Phase-Locked Loop for Mfm Data Recording

Patent: 4,633,488 →

Application: 06/670,825 →

Vertical Magnetic Recording Arrangement

Patent: 4,656,546 →

Application: 06/693,522 →

Aerodynamic Latch for Disk File Actuator

Patent: 4,647,997 →

Application: 06/728,674 →

Optical Encoder Which Use a Rectangular Photodetector Array

Patent: 4,661,696 →

Application: 06/741,174 →

Modular Unitary Disk File Subsystem

Patent: 4,639,863 →

Application: 06/741,175 →

Thin and Compact Micro-Winchester Head and Disk Assembly

Patent: 4,712,146 →

Application: 06/741,178 →

Compact Polyphase Optical Position Encoder

Patent: 4,703,176 →

Application: 06/741,179 →

Microprocessor Controlled Rigid Disk File Subsystem

Patent: 4,819,153 →

Application: 06/741,588 →

Magnetically Biased Aerodynamically Released Integral Safety Latch for Rigid Disk Drive

Patent: 4,692,829 →

Application: 06/775,840 →

Disk Drive Having Two Interactive Electromechanical Control Subsystems

Patent: 4,639,798 →

Application: 06/806,082 →

Magnetic Plated Media

Patent: 4,619,872 →

Application: 06/813,594 →

Mechanism for Joining Tape Leaders

Patent: 4,720,913 →

Application: 06/824,189 →

High Capacity Disk File with Embedded Sector Servo

Patent: 4,669,004 →

Application: 06/834,009 →

Integrated Encoder Decoder for Variable Length, Zero Run Length Limited Codes

Patent: 4,675,652 →

Application: 06/850,850 →

Disk Drive with Improved Error Correction Code

Patent: 4,730,321 →

Application: 06/869,005 →

Method for Producing Magnetic Heads

Patent: 4,695,351 →

Application: 06/884,013 →

Shock and Vibration Isolation Mounting

Patent: 4,705,257 →

Application: 07/029,328 →

Error Correction Code Encoder

Patent: 4,856,003 →

Application: 07/047,627 →

High Capacity Disk File with Embedded Sector Servo and Scsi Interface

Patent: 4,783,705 →

Application: 07/052,012 →

Modular Unitary Disk File Subsystem Having Increased Data Storage Capacity

Patent: 4,825,321 →

Application: 07/052,709 →

Compact Head and Disk Assembly

Patent: 4,772,974 →

Application: 07/055,375 →

Overwriting System for Magneto-Optical Recording with Self Timing Track

Patent: 5,020,040 →

Application: 07/065,931 →

An Apparatus for Dividing Elements of a Galois Field Gf(2QM)

Patent: 4,975,867 →

Application: 07/067,712 →

Differential Amplifier Circuit

Patent: 4,806,792 →

Application: 07/069,407 →

Solenoidal Thin Film Read/Write Head for Computer Mass Storage Device and Method of Making Same

Patent: 4,985,985 →

Application: 07/069,408 →

Method and Apparatus for Encoding Magnetic Disk Sector Addresses

Patent: 4,847,705 →

Application: 07/070,689 →

Three-Pole Magnetic Recording Head

Patent: 4,907,113 →

Application: 07/079,117 →

Magneto -Optical Data Recording Device Using a Wavelength and Polarization-Sensitive Splitter

Patent: 4,965,780 →

Application: 07/084,577 →

Hydrodynamic Bearing

Patent: 4,795,275 →

Application: 07/084,985 →

Process for Production of Magnetic Media

Patent: 4,816,119 →

Application: 07/092,952 →

Disk Extender Baffles

Patent: 4,821,130 →

Application: 07/093,195 →

Analog Amplifier-Multiplexer for a Data System

Patent: 4,905,238 →

Application: 07/093,196 →

Automatic Dc Restorer Stage for Servo Data Amplifier

Patent: 4,829,267 →

Application: 07/093,220 →

Apparatus and Method for Providing a Current Exponentially Proportional to Voltage and Directly Proportional to Temperature

Patent: 4,769,588 →

Application: 07/093,396 →

Automatic Gain Control System

Patent: 4,849,711 →

Application: 07/093,810 →

Armature for Dc Motor

Patent: 4,788,465 →

Application: 07/095,530 →

Media Defect Management Within Disk Drive Sector Format

Patent: 4,914,530 →

Application: 07/098,913 →

Programmed Ratio Mechanical Transmission

Patent: 4,875,635 →

Application: 07/104,814 →

Narrow Contour Head Assembly

Patent: 4,809,110 →

Application: 07/106,935 →

Data Decoding Circuit Including Phase-Locked Loop Timing

Patent: 4,908,841 →

Application: 07/115,238 →

Brushless Dc Motor

Patent: 4,874,975 →

Application: 07/127,625 →

Self-Loading Head Assembly for Disk Drives

Patent: 4,884,155 →

Application: 07/128,802 →

Method for Producing Hall Effect Sensor for Magnetic Recording Head

Patent: 4,828,966 →

Application: 07/128,947 →

Stored Data Error Correction System

Patent: 4,908,826 →

Application: 07/141,061 →

Synchronization for Stored Data

Patent: 4,914,535 →

Application: 07/141,204 →

Real-Time Bch Error Correction Code Decoding Mechanism

Patent: 4,866,716 →

Application: 07/146,850 →

Method of and Apparatus for Driving Three-Phase D.C. Brushless Motor

Patent: 4,864,198 →

Application: 07/149,495 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 4,814,909 →

Application: 07/150,994 →

Ceramic Support Arm for Movably Positioning Transducers

Patent: 4,949,194 →

Application: 07/160,883 →

Method for Fabricating Magnetic Recording Poles

Patent: 4,912,584 →

Application: 07/166,511 →

Vibration Isolating Mount

Patent: 5,131,619 →

Application: 07/166,514 →

Recording Heads with Side Shields

Patent: 4,935,832 →

Application: 07/168,978 →

Clamp for Mounting Head-Load Beam Slider Arm in a Disk Drive

Patent: 4,912,583 →

Application: 07/171,964 →

Detachable Head-Load Beam Slider Arm for Disk Drive

Patent: 4,947,275 →

Application: 07/172,288 →

Lock and Shock Mounted Device for Computer Disk Drive

Patent: 4,896,777 →

Application: 07/178,295 →

Testing Asynchronous Processes

Patent: 5,097,468 →

Application: 07/189,773 →

Cartridge Loader

Patent: 4,918,548 →

Application: 07/191,617 →

High Performance, High Capacity Micro-Winchester Disk Drive

Patent: 5,005,089 →

Application: 07/192,353 →

Optical Head with Flying Lens

Patent: 5,105,408 →

Application: 07/192,950 →

High Efficiency Disk Format and Synchronization System

Patent: 5,036,408 →

Application: 07/193,090 →

Sector Mis-Synchronization Detection Method

Patent: 4,989,211 →

Application: 07/193,109 →

An Improved Decorder

Patent: 4,908,721 →

Application: 07/193,347 →

Method of Producing a Pole Piece with Improved Magnetic Domain Structure

Patent: 4,900,650 →

Application: 07/193,417 →

Lithographic Technique Using Laser for Fabrication of Electronic Components and the Like

Patent: 4,877,480 →

Application: 07/205,490 →

Apparatus and Methods to Suppress Perpendicular Fields in Longitudinal Longitudinal Recording

Patent: 4,931,886 →

Application: 07/212,876 →

Flux Spreading Thin Film Magnetic Devices

Patent: 5,089,334 →

Application: 07/227,808 →

Recording Head to Minimize Undershoots in Readback Pulses

Patent: 4,970,616 →

Application: 07/233,322 →

Modular Unitary Disk File Subsystem with Differing Density Zones

Patent: 4,858,034 →

Application: 07/234,556 →

Electrical Guide for Tight Tolerance Machining

Patent: 5,023,991 →

Application: 07/238,868 →

Releasable Servo Writing Fixture Connector

Patent: 4,920,442 →

Application: 07/242,067 →

Automatic Servo Gain Calibration System for a Disk Drive

Patent: 4,890,172 →

Application: 07/250,037 →

Thin Film Head Having a Magneto-Restrictive Read Element

Patent: 4,885,649 →

Application: 07/253,390 →

Digital Phase Locked Loop

Patent: 4,975,930 →

Application: 07/266,089 →

A Method for Using a Modular Unitary Disk File Subsystem

Patent: 4,860,194 →

Application: 07/277,024 →

Removable and Transportable Hard Disk Subsystem

Patent: 5,041,924 →

Application: 07/278,006 →

Removable Hard Disk Drive Module

Patent: 311,737 →

Application: 07/280,997 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 4,872,074 →

Application: 07/326,166 →

Microprocessor Controlled Rigid Disk File Subsystem

Patent: 4,882,671 →

Application: 07/329,400 →

An Integral Balanced-Moment Head Positioner

Patent: 5,016,131 →

Application: 07/343,907 →

Hydrogenated Carbon Compositions

Patent: 5,266,409 →

Application: 07/344,990 →

Flux Spreading Thin Film Magnetic Devices

Patent: 5,085,935 →

Application: 07/360,421 →

Fixed Disk Drive

Patent: 4,920,434 →

Application: 07/364,810 →

Magnetic Medium for Longitudinal Recording

Patent: 5,176,965 →

Application: 07/364,900 →

Method and Apparatus for Detecting Focus and Tracking Errors

Patent: 4,987,292 →

Application: 07/365,243 →

System for Optimizing Data Transfer

Application: 07/365,244 →

Magneto-Optic Recording Medium with Oriented Langmuir-Blodgett Protective Layer

Patent: 5,120,603 →

Application: 07/369,713 →

Lithographic Technique Using Laser Scanning for Fabrication of Electronic Components and the Like

Patent: 5,221,422 →

Application: 07/369,714 →

Read Channel Optimization System

Patent: 5,121,260 →

Application: 07/369,741 →

Phased Series Tuned Equalizer

Patent: 5,103,352 →

Application: 07/369,742 →

Three-Pole Magnetic Head with Reduced Flux Leakage

Patent: 5,111,352 →

Application: 07/369,833 →

Wide Range High Stability Variable Gain Amplifier

Patent: 4,963,836 →

Application: 07/370,803 →

Multiple Bandwidth Filter System for Phase Locked Loop

Patent: 4,928,075 →

Application: 07/371,494 →

Error Detection and Correction System for Long Burst Errors

Patent: 5,136,592 →

Application: 07/373,323 →

Coherent Multi-Frequency Synthesis

Patent: 5,128,809 →

Application: 07/373,339 →

Method for Increasing Track Density of Magneto-Optical Storage Media

Patent: 5,191,563 →

Application: 07/373,939 →

Method for Increasing Linear Bit Density in Magneto-Optical Storage Media

Patent: 5,161,134 →

Application: 07/373,991 →

Rotary Head Actuator for Optical Disk

Patent: 5,153,870 →

Application: 07/374,010 →

Hydrodynamic Bearing

Patent: 5,112,142 →

Application: 07/382,251 →

Broad Bandwidth Planar Power Combiner/Divider Device

Patent: 4,968,958 →

Application: 07/397,056 →

Electrical Connection for a Self-Loading Head Assembly for Disk Drives

Patent: 4,975,795 →

Application: 07/406,692 →

Laminated Poles for Recording Heads

Patent: 5,108,837 →

Application: 07/410,028 →

Disk Drive Hub Assembly

Patent: 5,031,061 →

Application: 07/413,468 →

Low Profile Head-Load Beam Slider Arm for Disk Drive

Patent: 5,003,420 →

Application: 07/418,945 →

Hydrodynamic Bearing

Patent: 5,067,528 →

Application: 07/439,884 →

Keycap for a Computer Disk Drive Control Switch

Patent: 319,050 →

Application: 07/440,979 →

Self-Synchronizing Servo Control System and Servo Data Code for High Density Disk Drives

Patent: 4,987,355 →

Application: 07/446,051 →

Thin Film Read/Write Head Having a Solenoidal Energizing Coil

Patent: 4,972,287 →

Application: 07/449,133 →

Phase Locked Loop with Bandwidth Ramp

Patent: 4,954,788 →

Application: 07/453,356 →

Tape Head with Low Spacing Loss Produced by Narrow and Wide Wear Regions

Patent: 5,055,959 →

Application: 07/462,562 →

Housing for a Removable Disk Drive

Patent: 332,256 →

Application: 07/468,972 →

Error Trapping Decoding Method and Apparatus

Patent: 5,107,506 →

Application: 07/469,924 →

High Bandwidth Reed-Solomon Encoding, Decoding and Error Correcting Circuit

Patent: 5,107,503 →

Application: 07/470,423 →

Head/Gimbal Assembly Having Low Stiffness Cross Band Flexure

Patent: 5,115,363 →

Application: 07/482,027 →

Head and Disk Assembly for Fixed Disk Drive

Patent: 4,982,296 →

Application: 07/484,043 →

Exponential Function Circuitry

Patent: 5,065,053 →

Application: 07/485,059 →

Current-Pulse Integrating Circuit with Phase-Locked Loop

Patent: 5,093,628 →

Application: 07/485,151 →

Continuous-Plus-Embedded Servo Data Position Control System for Magnetic Disk Device

Patent: 5,109,307 →

Application: 07/490,504 →

Totally Magnetic Fine Tracking Miniature Galvanometer Actuator

Patent: 5,243,241 →

Application: 07/494,171 →

Extended Range Servo System for Positioning a Disk Drive Head Over a Selected Track

Patent: 5,153,786 →

Application: 07/502,070 →

Track Identification and Counting in a Disk Drive Positioning System

Patent: 5,136,440 →

Application: 07/502,311 →

Disk Drive with Constant Bandwidth Automatic Gain Control

Patent: 5,220,468 →

Application: 07/502,312 →

Velocity Estimator in a Disk Drive Positioning System

Patent: 5,095,471 →

Application: 07/502,323 →

Combination Embedded and Dedicated Servo System Including Embedded Servo Writing

Patent: 5,153,787 →

Application: 07/502,511 →

Embedded Burst Demodulation and Tracking Error Generation

Patent: 5,115,360 →

Application: 07/502,512 →

High Speed Switched Automatic Gain Control

Patent: 5,187,619 →

Application: 07/502,513 →

Method of Automatic Gain Control Basis Selection and Method of Half-Track Servoing

Patent: 5,099,367 →

Application: 07/502,514 →

Automatic Correction of Position Demodulator Offsets

Patent: 5,247,398 →

Application: 07/502,612 →

Fault Toelrant Frame, Guardband and Index Detection Methods

Patent: 5,115,359 →

Application: 07/502,921 →

Methods of Writing and Detecting Dibit Servo Encoding

Patent: 5,202,802 →

Application: 07/503,151 →

Thin Film Head Read Recovery

Patent: 5,053,892 →

Application: 07/505,650 →

Method and Apparatus for Optimizing Prefetch Caching by Reverse Ordering of Logical Blocks

Patent: 5,283,875 →

Application: 07/509,037 →

Disk File Servo Loop with Improved Track Settling

Patent: 5,062,023 →

Application: 07/509,051 →

In-Drive Defect Detector

Patent: 5,031,054 →

Application: 07/512,100 →

Method of Making Recording Heads with Side Shields

Patent: 5,075,956 →

Application: 07/517,558 →

Multi-Level Error Correction System

Patent: 5,224,106 →

Application: 07/521,224 →

Solid State Memory Array Using Address Block Bit Substitution to Compensate for Non-Functional Storage Cells

Patent: 5,199,033 →

Application: 07/521,575 →

Biasing Conductor for Mr Head

Patent: 5,081,554 →

Application: 07/534,371 →

Having Dielectric Layers with Embedded Microspheres

Patent: 5,178,934 →

Application: 07/540,847 →

Thermal Compensated Head Positioner Servo for Disk Drive

Patent: 5,128,813 →

Application: 07/541,838 →

Lubricants for Magnetic Media

Patent: 5,128,216 →

Application: 07/543,698 →

Mehtods and Apparatus for Optimizing Track Seeking Operations

Patent: 5,153,789 →

Application: 07/543,973 →

Auto-Centered Phase-Locked Loop

Patent: 5,119,043 →

Application: 07/544,506 →

Method and Apparatus for Transferring Data Between a Data Bus and a Data Storage Device

Patent: 5,182,752 →

Application: 07/545,860 →

Increasing Storage Density of Optical Data Media by Detecting a Selecting Portion of a Light Spot Image Corresponding to a Single Domain

Patent: 5,247,510 →

Application: 07/545,873 →

Transverse Positioner for Read/Write Head

Patent: 5,105,322 →

Application: 07/545,926 →

Combined Media Cartridge Loader and Associated Magazine

Patent: 337,760 →

Application: 07/546,060 →

Magazine and Receiver for Media Cartridge Loader

Patent: 5,231,552 →

Application: 07/546,089 →

Thin Film Head Slider Fabrication Process

Patent: 5,095,613 →

Application: 07/546,176 →

Magnetic Pole Configuration for High Density Thin Film Recording Head

Patent: 5,157,570 →

Application: 07/546,280 →

Biasing Conductor for Mr Head

Patent: 5,159,511 →

Application: 07/546,368 →

Apparatus for Writing Servo Information Onto a Magnetic Disk

Patent: 5,162,955 →

Application: 07/546,386 →

Magnetic Recording Medium Comprising Nife and Cozr Alloy Crystalline Magnetic Alloy Layers and a C0-Cr Vertically Magnetizable Layer

Patent: 5,242,761 →

Application: 07/547,669 →

Double Unequal Bus Timeout

Patent: 5,301,329 →

Application: 07/550,206 →

Error Location System

Patent: 5,001,715 →

Application: 07/550,802 →

Head Position Recalibration for Disk Drive

Patent: 5,227,930 →

Application: 07/556,945 →

Edge Servo for Disk Drive Head Positioner

Patent: 5,170,299 →

Application: 07/569,065 →

Method of Manufacturing a Thin Film Head

Patent: 5,068,959 →

Application: 07/582,799 →

Removable and Transportable Hard Disk Subsystem

Patent: 5,065,262 →

Application: 07/585,949 →

Method and Apparatus for Encoding and Mapping Magnetic Disk Sector Addresses

Patent: 34,003 →

Application: 07/592,908 →

Transducer with Improved Inductive Coupling

Patent: 5,184,267 →

Application: 07/603,162 →

Split Lens Displaced from Each Other Along Plane of Cut

Patent: 5,182,444 →

Application: 07/606,101 →

Data Head Load Bean for Height Compacted, Low Power Fixed Head and Disk Assembly

Patent: 5,027,241 →

Application: 07/610,306 →

Disk Drive

Patent: 5,148,338 →

Application: 07/612,768 →

Adjustable Folding Hay Raking and Windrowing Apparatus

Patent: 33,949 →

Application: 07/613,469 →

Compact Multiple Roller Tape Guide Assembly

Patent: 5,173,828 →

Application: 07/619,893 →

Non-Slip Tachometer Roller

Patent: 5,088,172 →

Application: 07/620,465 →

Expansible Fixed Disk Drive Subsystem for Computer

Patent: 5,097,439 →

Application: 07/626,428 →

Assembly and Method for Securing Head Suspensions on Actuator Arms

Patent: 5,153,794 →

Application: 07/626,588 →

Adjustable Threshold for Buffer Management

Patent: 5,210,829 →

Application: 07/626,793 →

Method for Providing Uniaxial Anisotropy in Magnetic Recording Disks

Patent: 5,147,679 →

Application: 07/629,191 →

Method of Producing a Semiconductor Device Using a Wire Mask Having a Specified Diameter

Patent: 5,124,269 →

Application: 07/633,192 →

Architecture for a Thin-Film Magnetic Recording Head

Patent: 5,134,535 →

Application: 07/644,029 →

0N-The-Fly Error Correction with Embedded Digital Controller

Patent: 5,241,546 →

Application: 07/650,791 →

Addressing Technique for a Fault Tolerant Block-Structured Storage Device

Patent: 5,392,288 →

Application: 07/652,870 →

Method and Apparatus for Encoding Data for Storage on Magnetic Tape

Patent: 5,263,030 →

Application: 07/654,499 →

Method of Making a Magnetic Recording Head

Patent: 5,103,553 →

Application: 07/660,211 →

Subambient Pressure Air Bearing Slider for Disk Drive

Patent: 5,097,370 →

Application: 07/663,192 →

Magneto-Optic Reproducing Device Using Right and Left Circularly Polarized Light

Patent: 5,202,860 →

Application: 07/664,183 →

Rfi/Emi Reduction for Head and Disk Assembly

Patent: 5,187,621 →

Application: 07/674,385 →

Self-Tuning Adaptive Bandwidth Regulator

Patent: 5,155,422 →

Application: 07/676,960 →

Motorized Spindle for Disk Drive

Patent: 5,200,866 →

Application: 07/682,726 →

Permanent Magnet Easy-Axis Biased Magnetoresistive Head

Patent: 5,193,039 →

Application: 07/686,596 →

Low Stiffness Apparatus for Supporting a Read/Write Transducer Head Slider

Application: 07/686,729 →

Data Transducer Position Control System for Rotating Disk Data Storage Equipment

Patent: 5,119,254 →

Application: 07/689,680 →

Magnetic Contact Recording Head for Operation with Tapes of Varying Thicknesses

Patent: 5,214,553 →

Application: 07/693,449 →

Electrical Guide for Tight Tolerance Machining

Patent: 5,175,938 →

Application: 07/694,802 →

Bistable Magnetic/Electromagnetic Latch for Disk File Actuator

Patent: 5,208,713 →

Application: 07/696,629 →

Fault Tolerant Rll Data Sector Address Mark Decoder

Patent: 5,231,545 →

Application: 07/710,065 →

High Capacity Submicro-Winchester Fixed Disk Drive

Patent: 5,255,136 →

Application: 07/710,171 →

Servo Data Recovery Circuit for Disk Drive Having Digital Embedded Sector Servo

Application: 07/710,172 →

Data Head Load Beam for Height Compacted, Low Power Fixed Head and Disk Assembly

Patent: 5,208,712 →

Application: 07/717,038 →

Head Position Control System for Fixed Drive Including Position Encoder, Temperature Sensor and Embedded Fine Servo Information

Patent: 5,084,791 →

Application: 07/717,874 →

Magnetic Head Testing Apparatus for Detecting Occurrences of Popcorn Noise Amid Externally Generated Noise

Patent: 5,134,366 →

Application: 07/719,042 →

Embedded Servo Banded Format for Magnetic Disks for Use with a Data Processing System

Patent: 5,278,703 →

Application: 07/719,885 →

Spindle Controller with Startup Correction of Disk Position

Patent: 5,276,569 →

Application: 07/721,044 →

Method and Apparatus for Surface Reallocation for Improved Manufacturing Process Margin

Patent: 5,216,655 →

Application: 07/721,061 →

Transducer with Improved Inductive Coupling

Patent: 5,311,386 →

Application: 07/721,233 →

Method and Apparatus for Recovering Digital Signals from Recorded Reproductions of Digital Signals

Patent: 5,239,423 →

Application: 07/722,046 →

Dual-Charge-Pump Bandwidth-Switched Phase-Locked Loop

Patent: 5,121,085 →

Application: 07/722,752 →

Side-By-Side Read/Write Heads with Rotary Positioner

Patent: 5,229,901 →

Application: 07/723,087 →

Scsi Interface Employing Bus Extender and Auxiliary Bus

Patent: 5,274,783 →

Application: 07/723,149 →

Nitrogen-Containing Materials for Wear Protection and Friction Reductioin

Patent: 5,232,570 →

Application: 07/723,431 →

Methods for Treating the Surface of a Solid Body

Patent: 5,198,073 →

Application: 07/733,546 →

Disk Assembly with Thermally Isolated in-Hub Spindle Motor

Patent: 5,160,865 →

Application: 07/753,003 →

Micro-Winchester Disk Drive Having on-Board Segmented Cache Memory

Patent: 5,317,713 →

Application: 07/762,683 →

Servo Pause for Disk Drive Embedded Multi-Tasked Controller

Patent: 5,280,603 →

Application: 07/762,887 →

Thin Film Read/Write Head for Minimizing Erase Fringing and Method of Making the Same

Patent: 5,267,112 →

Application: 07/767,994 →

Non-Slip Tachometer Roller

Patent: 5,199,168 →

Application: 07/770,603 →

Method for Providing a Lubricant Coating on the Surface of a Magneto- Optical Disk and Resulting Optical Disk

Patent: 5,112,662 →

Application: 07/772,476 →

Electronic Hot Connection of Disk Drive Module to Computer Peripherial Bus

Patent: 5,297,067 →

Application: 07/778,446 →

Fixed Disk Drive Mounted to Printed Circuit Board

Patent: 5,379,439 →

Application: 07/782,376 →

Removable and Transportable Hard Disk Subsystem

Patent: 5,253,129 →

Application: 07/791,792 →

Dc-Dc Boost Converter for Spindle Motor Control

Patent: 5,208,518 →

Application: 07/792,848 →

A Apparatus for Providing Uniaxial Anisotropy in a Magnetic Recording Disk

Patent: 5,226,966 →

Application: 07/797,504 →

Data Encoding and Demodulation System

Patent: 5,184,125 →

Application: 07/798,858 →

High Resolution Symmetrical Divider Circuit

Patent: 5,177,771 →

Application: 07/804,232 →

Disk Store with Device for Fixing the Disk Pack on Its Hub Such That It Can Be Removed

Patent: 5,249,090 →

Application: 07/806,972 →

Error-Resilient Information Encoding

Patent: 5,237,574 →

Application: 07/808,035 →

Cross-Checking for on-the-Fly Reed Solomon Error Correction Code

Patent: 5,422,895 →

Application: 07/820,283 →

Disk Drive with Reduced Acoustic Noise

Patent: 5,282,100 →

Application: 07/824,031 →

Process of Forming Magnetic Devices with Enhanced Poles

Patent: 5,571,573 →

Application: 07/831,615 →

Shock Mounted Disk Drive Module Having Snap-Lock Cover

Patent: 5,216,582 →

Application: 07/832,966 →

Thin-Film Magnetic Transducer with a Multitude of Magnetic Flux Interactions

Patent: 5,331,496 →

Application: 07/837,358 →

Airflow Generator Spindle Hub for Aerodynamically Released Shipping Latch for Disk Drive Actuator

Patent: 5,999,370 →

Application: 07/839,870 →

Tunable Wideband Active Filter

Patent: 5,225,790 →

Application: 07/843,730 →

Remote Fine Positioning Mechanism

Patent: 5,504,731 →

Application: 07/847,113 →

Multi-Disk Optical Storage System

Patent: 5,307,336 →

Application: 07/847,116 →

Digital-Analog Driver for Brushless D.C. Spindle Motor

Patent: 5,210,474 →

Application: 07/847,147 →

Apparatus and Method for Fabricating a Deflection Mirror Tower

Application: 07/847,455 →

An Optical Angular Position Sensing System for Use with a Galvanometer

Patent: 5,223,710 →

Application: 07/847,463 →

Data Recovery After Error Correction Failure

Patent: 5,321,703 →

Application: 07/850,718 →

Subambient Pressure Air Bearing Slider for Disk Drive

Patent: 5,309,303 →

Application: 07/851,054 →

Removable Rigid Disk Drive

Patent: 348,448 →

Application: 07/855,990 →

Combined Shock Mount Frame and Seal for a Rigid Disk Drive

Patent: 5,223,996 →

Application: 07/855,991 →

A Removable Enclosure Housing a Rigid Disk Drive

Patent: 5,243,495 →

Application: 07/856,006 →

Three-Pole Magnetic Recording Head with High Readback Resolution

Patent: 5,311,387 →

Application: 07/865,285 →

Automatic Phase Margin Compensation Control Circuit and Method for Disk Drives

Patent: 5,306,994 →

Application: 07/865,994 →

System for Enhanced Implementation of Add-Compare-Select (Acs) Functions

Patent: 5,377,133 →

Application: 07/866,996 →

Circuit Providing Equalized Duty Cycle Output

Patent: 5,227,671 →

Application: 07/868,984 →

Event Driven Power Reducing Software State Machines

Application: 07/870,135 →

Atomic Force Microscope with a Plurality of Cantilevers for Recording/ Reproducing Information

Patent: 5,260,926 →

Application: 07/870,335 →

Flex Circuit for Head and Disk Assembly

Patent: 5,631,788 →

Application: 07/870,681 →

Fault Tolerant Memory Using Bus Bit Aligned Reed-Solomon Error Correction Code Symbols

Patent: 5,313,464 →

Application: 07/878,749 →

Method and Apparatus for Runout Correction Due to Disk Slip or Spindleimbalance

Patent: 5,402,280 →

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Hard Disk Drive Architecture

Patent: 5,396,384 →

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Magnetic Pole Configuration for High Density Thin Film Recording Head

Patent: 5,314,596 →

Application: 07/888,105 →

Method and Apparatus for Variable Density Read-After-Writing on Magnetic Tape

Patent: 5,289,328 →

Application: 07/888,941 →

Thin Film Media for Very Low Flying Height/Contact Recording Application

Patent: 5,626,941 →

Application: 07/889,157 →

Transducer with Improved Inductive Coupling

Patent: 5,195,005 →

Application: 07/890,372 →

Disk Drive Holder and Interconnection System

Patent: 5,333,097 →

Application: 07/900,329 →

Disk Drive System Including a Dram Array and Associated Method for Programming Intial Information into the Array

Patent: 5,517,634 →

Application: 07/903,001 →

Magnetic Head for Very High Track Density Magnetic Recording

Patent: 5,307,217 →

Application: 07/903,694 →

Error Correction System with Selectable Error Correction Capabilities

Patent: 5,379,305 →

Application: 07/918,208 →

Wide Bandwidth Peak Follower Circuitry

Patent: 5,272,394 →

Application: 07/925,904 →

Multi-Mode Gain Control Loop for Prml Class Iv Sampling Data Detection Channel

Patent: 5,375,145 →

Application: 07/936,742 →

Timing Control for Prml Class Iv Sampling Data Detection Channel

Patent: 5,258,933 →

Application: 07/936,756 →

Data Encoding and Decoding Within Prml Class Iv Sampling Data Detection Channel of Disk Drive

Patent: 5,260,703 →

Application: 07/936,757 →

Viterbi Detector Having Adjustable Detection Thresholds for Prml Class Iv Sampling Data Detection

Patent: 5,341,387 →

Application: 07/936,759 →

Adaptation and Training of Digital Finite Impulse Response Filter Within Prml Class Iv Sampling Data Detection Channel

Patent: 5,381,359 →

Application: 07/936,761 →

Disk Drive Using Prml Class Iv Sampling Data Detection with Digital Adaptive Equalization

Patent: 5,341,249 →

Application: 07/937,064 →

Asynchronous Peak Detection of Information Embedded Within Prml Class Iv Sampling Data Detection Channel

Patent: 5,321,559 →

Application: 07/937,352 →

On-The-Fly Splitting of Disk Data Blocks Using Timed Sampling of a Data Position Indicator

Patent: 5,274,509 →

Application: 07/943,252 →

Method of Making a Magnetic Medium for Longitudinal Recording

Patent: 5,431,969 →

Application: 07/945,706 →

Disk Drive Having on-Board Triggered Digital Sampling Analyzer

Application: 07/954,557 →

Data Block Sequencing Using Id After Embedded Servo Sector in Disk Drive

Application: 07/954,886 →

Pivoting, Dual State Magnetic Latch for Disk File Actuator

Patent: 5,341,259 →

Application: 07/964,762 →

Error Detection Encoding System

Patent: 5,359,610 →

Application: 07/967,958 →

Digital Multi-Rate Notch Filter for Sampled Servo Digital Control System

Patent: 5,325,247 →

Application: 07/974,931 →

Ball Spindle Pivot for Reduced Friction Rotary Actuator in Disk Drive

Application: 07/979,974 →

Adaptive Track Seeking for Disk Drives

Patent: 5,305,161 →

Application: 07/980,308 →

Metho of Making a Thin Film Head with Minimized Secondary Pulses

Patent: 5,240,740 →

Application: 07/988,370 →

Flow-Regulating Hydrodynamic Bearing

Patent: 5,246,294 →

Application: 07/990,820 →

Microlithographic Method for Producing Thick, Vertically-Walled Photoresist Patterns

Patent: 5,330,881 →

Application: 07/994,602 →

Aerodynamic Actuator Latch with Magnetic Return Spring for Hard Disk Drive

Patent: 5,319,511 →

Application: 08/005,645 →

Perpendicular Anisotropy in Thin Film Devices

Patent: 5,384,680 →

Application: 08/017,998 →

Double-Sided Optical Media for a Disk Storage Device

Patent: 5,470,627 →

Application: 08/020,515 →

Lapping Fixture for Disk Sliders

Patent: 5,468,177 →

Application: 08/023,274 →

Method of Making a Thin Film Magnetic Head Having Multi-Layer Coils

Patent: 5,448,822 →

Application: 08/029,125 →

Masterless Synchronized Spindle Control for Hard Disk Drives

Patent: 5,416,648 →

Application: 08/036,823 →

A Thin Film Two-Pole Inductive Magnetic Head with Minimized Secondary Pulses

Patent: 5,333,086 →

Application: 08/038,330 →

Method and Plating Apparatus

Patent: 5,332,487 →

Application: 08/052,495 →

Synchronization of Multiple Disk Drive Spindles

Patent: 5,438,464 →

Application: 08/054,652 →

Phase Locking a Disk Drive Spindle to a Reference Signal

Patent: 5,448,428 →

Application: 08/054,657 →

Shared Memory Array for Data Block and Control Program Storage in Disk Drive

Patent: 5,465,343 →

Application: 08/056,428 →

Thin Film Head Slider Fabrication Process

Application: 08/056,515 →

Band Limited Control of a Flexible Structure Using Piecewise Trigonometric Input Signals

Patent: 5,465,035 →

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Synchronization to Different Fields in a Storage Device

Patent: 5,365,382 →

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Method and Apparatus for Writing or Reading Servo Information

Patent: 5,375,020 →

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Lens/Mirror Tower for an Optical Storage Device

Patent: 5,452,283 →

Application: 08/079,484 →

System and Method for Verifying the Integrity of Data Written to a Memory

Patent: 5,428,630 →

Application: 08/086,528 →

Miniature Disk Drive Having Embedded Sector Servo with Split Data Fields and Automatic on-the-Fly Data Block Sequencing

Patent: 5,517,631 →

Application: 08/086,824 →

Rotary Actuator for Optical Disk Drive

Application: 08/088,691 →

Removable Disk Cartridge for Use with a Rotary Actuated Disk Drive

Patent: 5,381,402 →

Application: 08/088,933 →

Electrical Access for Electrical Lapping Guides

Patent: 5,494,473 →

Application: 08/089,141 →

Electrical Lapping Guides for Thin-Film Disk Sliders

Application: 08/089,142 →

Averaging Zero Phase Start for Phase Locked Loops

Patent: 5,452,325 →

Application: 08/090,378 →

Rotating Tape Edge Guide

Patent: 5,414,585 →

Application: 08/094,272 →

Magnetic Tape Head

Patent: 5,426,551 →

Application: 08/094,413 →

Brushless Dc Spindle Motor Startup Control

Patent: 5,530,326 →

Application: 08/094,484 →

Magnetic Head with Self-Regulating Wear Regions

Application: 08/094,661 →

Process for Foaming Thermoplastic Polycarbonates

Patent: 5,308,558 →

Application: 08/106,469 →

Hydrogenated Carbon Compositions

Application: 08/114,917 →

Weighted Average Servo Burst Peak Detector for Disk Drive Read Channel

Patent: 5,362,993 →

Application: 08/119,748 →

Positioning Device for Positioning a Read/Write Head of a Disc Storage System

Patent: 5,319,512 →

Application: 08/120,709 →

Optimized Equalizer System for Data Recovery and Timing Extraction in Partial Response Read Channels

Application: 08/123,502 →

Solid State Disk Drive Unit Having on-Board Backup Non-Volatile Memory

Patent: 5,535,399 →

Application: 08/130,047 →

Device for Component Processing

Patent: 5,361,914 →

Application: 08/131,836 →

Thin-Film Magnetic Transducer with Multiple Yoke-Coil Interactions and Elongated Lateral Yoke Vias

Patent: 5,418,668 →

Application: 08/132,016 →

Wedged Reels in Streaming Tape Drives and Tape Cartridges

Patent: 5,474,253 →

Application: 08/135,098 →

Method of Making a Transducer with Improved Inductive Coupling

Patent: 5,428,893 →

Application: 08/145,469 →

Head Actuator Having Spring Loaded Split Nut

Patent: 5,448,438 →

Application: 08/149,583 →

Rotational Latency Queue Reordering

Application: 08/149,982 →

Address Error Detection Technique for Increasing the Reliability of a Storage Subsystem

Patent: 5,392,302 →

Application: 08/163,397 →

Scsi Didk Disconnection/Reconnection Timing Method for Reducing Bus Utilization

Application: 08/164,899 →

Double Unequal Bus Timeout

Patent: 5,454,111 →

Application: 08/170,846 →

Prml Sampled Data Channel Synchronous Servo Detector

Patent: 5,384,671 →

Application: 08/174,895 →

Method of Making a Transducer with Improved Inductive Coupling

Patent: 5,428,887 →

Application: 08/181,582 →

Flexible Vane Latch Apparatus for a Disk Drive

Patent: 5,452,161 →

Application: 08/184,825 →

Multiple Servo Sector Sets Write with Self-Verification for Disk Drive

Patent: 5,553,086 →

Application: 08/187,845 →

Active Disturbance Compensation System for Disk Drives

Patent: 5,426,545 →

Application: 08/191,758 →

Disk Drive Using Prml Synchronous Sampling Data Detection and Asychronous Detection of Embedded Sector Servo

Patent: 5,345,342 →

Application: 08/192,146 →

Stackable Modular Storage Tower

Patent: 5,515,239 →

Application: 08/198,630 →

Low Profile Head Suspension Assemblies and Method

Application: 08/198,855 →

Flexible Preamplifier Integrated Circuit Assemblies and Method

Patent: 5,499,161 →

Application: 08/198,871 →

Low Cost Permanent Magnet Disk Spindle Motor

Patent: 5,506,458 →

Application: 08/206,596 →

Solid State Disk Memory Using Storage Devices with Defects

Patent: 5,459,742 →

Application: 08/212,334 →

A Process of Assembling a Disk Drive Minimum Spacing Between Disks

Patent: 5,471,733 →

Application: 08/212,371 →

Method for Determining Command Executon Dependencies Within Command Queue Reordering Process

Patent: 5,548,795 →

Application: 08/218,567 →

Servo Method and Apparatus for Very High Track Density Magnetic Recording by Adjusting Head Position Based on Servo Information Read from Adjacent Track

Patent: 5,371,638 →

Application: 08/222,491 →

Header Verification in a Disk Drive Using Sector Histories for Improved Format Efficiency

Patent: 5,568,627 →

Application: 08/223,415 →

Digitial Output Magnetoresistive (Domr) Head and Methods Associated Therewith

Patent: 5,546,253 →

Application: 08/239,243 →

Set Associative Block Management Disk Cache

Application: 08/247,139 →

Method for Characterizing and Controlling in-Plane Stiffness of Load Beam Within Head-Gimbal Assembly of a Hard Disk Drive

Patent: 5,471,734 →

Application: 08/249,525 →

Glitchless Frequency-Adjustable Ring Oscillator

Patent: 5,471,176 →

Application: 08/255,162 →

"Acton" Load Beam for a Winchester Disk Drive

Application: 08/259,217 →

Robust Active Damping Control System

Patent: 5,459,383 →

Application: 08/259,361 →

Power Reduction Shroud for a Hard Disk Drive

Application: 08/266,729 →

Disk Drive Command Queuing Method Using Two Memory Devices for Storing Two Types of Commands Separately First Before Queuing Commands in the Second Memory Device

Patent: 5,603,063 →

Application: 08/267,143 →

Real-Time Dc Offset Control and Associated Method

Patent: 5,459,679 →

Application: 08/276,817 →

Active Electromagnetic Latch Having No Moving Parts for File Actutor

Patent: 5,452,162 →

Application: 08/278,700 →

Self-Contained Hydrodynamic Bearing Unit

Application: 08/278,803 →

Self-Replenishing Hydrodynamic Bearing

Patent: 5,407,281 →