IP Library › Assignment 011170/0948

Patent Assignment

Reel/Frame 011170/0948

Security Agreement

Recorded: 2000-09-28 Pages: 26

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Assignor

WESTERN DIGITAL CORPORATION

Executed: 2000-09-20

Assignee

GENERAL ELECTRIC CAPITAL CORPORATION

SUITE 200, 350 SOUTH BEVERLY DRIVE, BEVERLY HILLS, CALIFORNIA, 90212

Covered Properties (254)

Chip Topography for Mos Data Encryption Standard Circuit

Patent: 4,543,646 →

Application: 06/156,594 →

Addressable Buffer Circuit with Address Incrementer Independently Clocked by Host Computer and External Storage Device Controller

Patent: 4,527,233 →

Application: 06/401,700 →

Voltage Controlled Oscillator with Self-Adjustment of Operating Point

Patent: 4,667,170 →

Application: 06/780,553 →

High Order Digital Phase-Locked Loop System

Patent: 4,808,884 →

Application: 06/803,664 →

Stackable Housing for Computer Peripheral Components

Patent: 301,137 →

Application: 06/874,362 →

Integrated System for Implementation of Read Window Margining and Write Precompensation in Disk Drives

Patent: 4,809,088 →

Application: 06/938,529 →

Cmos Schmitt Trigger with Independently Biased High/Low Threshold Circuits

Patent: 4,859,873 →

Application: 07/074,905 →

Variable Frequency System Having Linear Combination of Charge Pump and Voltage Controlled Oscillator

Patent: 4,871,979 →

Application: 07/080,957 →

Temporary Bus Master for Temporary Bus Master for Use in a Digital System Having Asynchronously Communicating Sub-Sytems

Patent: 5,062,044 →

Application: 07/102,542 →

Cmos Integrated Circuit Having Precision Resistor Elements

Patent: 4,868,482 →

Application: 07/104,398 →

Method and Apparatus for Reducing Transient Noise in Integrated Circuits

Patent: 4,947,063 →

Application: 07/161,469 →

Schmitt Trigger Adapted to Interface Between Different Transistor Architectures

Patent: 4,904,884 →

Application: 07/184,243 →

Phase-Locked Loop Delay Line

Patent: 4,922,141 →

Application: 07/205,517 →

Data Recording System Buffer Management and Multiple Host Interface Control

Patent: 5,121,480 →

Application: 07/220,531 →

Multiplexed Bus Architecture for Configuration Sensing

Patent: 4,866,309 →

Application: 07/220,533 →

Transient Free Clock Switch Logic

Patent: 4,899,351 →

Application: 07/220,534 →

Method and Disk Controller Architecture for Zero Latency Data Read

Patent: 4,918,651 →

Application: 07/220,535 →

Data Disk Defect Handling Using Relocation Id Fields

Patent: 4,914,529 →

Application: 07/220,552 →

Biasing Circuit for Generating Precise Currents in an Integrated Circuit

Patent: 4,893,030 →

Application: 07/233,847 →

A Fifo Control Architecture and Method for Buffer Memory Access Arbitration

Patent: 5,072,420 →

Application: 07/324,313 →

Data Sampling Architecture

Patent: 4,935,942 →

Application: 07/325,191 →

High Dc Breakdown Voltage Field Effect Transistor and Integrated Circuit

Patent: 5,162,888 →

Application: 07/351,669 →

Electro-Static Discharge Protection Circuit with Bimodal Resistance Characteristics

Patent: 5,051,860 →

Application: 07/351,670 →

Disk Drive Pulse Detection Method and Circuit

Patent: 5,117,314 →

Application: 07/372,274 →

Variable Frequency System Having Linear Combination of Charge Pump and Voltage Controlled Oscillator

Patent: 5,126,692 →

Application: 07/384,279 →

Programmable Multiple Oscillator Circuit

Patent: 4,998,075 →

Application: 07/427,197 →

Intelligent Disk Drive Having Configurable Controller Subsystem Providing Drive-Status Information via Host-Computer Expansion Bus

Patent: 5,023,831 →

Application: 07/511,957 →

Digital-To-Analog Converter with Bit-Weight Segmented Arrays

Patent: 5,017,919 →

Application: 07/533,885 →

Stability-Compensated Operational Amplifier

Patent: 5,023,567 →

Application: 07/533,890 →

Triple Comparator Circuit

Patent: 5,115,151 →

Application: 07/535,177 →

Esd Protection Circuit with Segmented Buffer Transistor

Patent: 5,157,573 →

Application: 07/648,577 →

Pll Clock Synthesizer Using Current Controlled Ring Oscillator

Patent: 5,136,260 →

Application: 07/666,224 →

Data Synchronizer with Symmetric Window Generation

Patent: 5,278,702 →

Application: 07/685,473 →

Disk Drive Data Synchronizer with Window Shift Synthesis

Patent: 5,212,601 →

Application: 07/695,531 →

Power Rail Esd Protection Circuit

Patent: 5,237,395 →

Application: 07/706,240 →

Electro-Static Discharge Protection Circuit with Bimodal Resistance Characteristics

Patent: 5,270,565 →

Application: 07/708,790 →

Capacitively Induced Electrostatic Discharge Protection Circuit

Patent: 5,173,755 →

Application: 07/711,101 →

Information Detecting System

Patent: 5,311,376 →

Application: 07/714,102 →

Seek System for Sector Servo Disk Drive

Patent: 5,254,920 →

Application: 07/715,511 →

Compact Disk Drive Head Disk Assembly with Conformable Tape Seal

Patent: 5,270,887 →

Application: 07/802,347 →

Disk Drive with Reduced Power Modes

Patent: 5,345,347 →

Application: 07/836,775 →

High Speed Schmitt Trigger with Process, Temperature and Power Supply Independence

Patent: 5,336,942 →

Application: 07/928,896 →

Polyphase Brushless Dc Motor Control

Patent: 5,223,771 →

Application: 07/951,378 →

Disk Drive Employing Multi-Mode Spindle Drive System

Patent: 5,471,353 →

Application: 07/992,743 →

Tri-Bit Encoding for Disk Drive Servo Track Id Information

Patent: 5,600,499 →

Application: 08/045,583 →

Output Driver for Reducing Transient Noise in Integrated Circuits

Patent: 5,293,082 →

Application: 08/071,598 →

Disk Drive Employing Compact Magnetic Actuator Latch Mechanism

Patent: 5,455,728 →

Application: 08/089,705 →

Magnetic Memory Disk Storage System

Patent: 5,550,694 →

Application: 08/090,809 →

Disk Drive Having Head Positioning Servo with Improved Servo Read Signal Processing Using Median Servo Burst Peak Magnitudes

Patent: 5,483,393 →

Application: 08/229,210 →

Hard Disk Drive Which Uses the Back Emf of the Actuator to Detect Shocks

Patent: 5,654,840 →

Application: 08/269,332 →

Multi-Drive Controller with Encoder Circuitry That Generates Ecc Check Bytes Using the Finite Field for Optical Data for Appending to Data Flowing to Hda

Patent: 5,661,848 →

Application: 08/302,639 →

Disc Drive Head Disk Assemble Actuator Mount Mechanism

Patent: 5,570,250 →

Application: 08/332,957 →

Disk Drive with Embedded Finite Field Processor for Error Correction

Patent: 5,812,564 →

Application: 08/436,515 →

Disk Drive with Fast Error Correction Validation

Patent: 5,691,994 →

Application: 08/436,516 →

Disk Drive with Pipelined Embedded Ecc/Edc Controller Which Provides Parallel Operand Fetching and Instruction Execution

Patent: 5,689,727 →

Application: 08/436,520 →

Disk Drive with Error Code Embedded Sector Identification

Patent: 5,640,286 →

Application: 08/436,521 →

Disk Drive Spindle Motor Startup Using an Additional Motor Winding Upon Startup Failure

Patent: 5,650,886 →

Application: 08/526,074 →

Hydrodynamic Bearing with Controlled Lubricant Pressure Distribution

Patent: 5,516,212 →

Application: 08/529,845 →

Molded Swing-Type Actuator Assembly with Press-Fit Pivot and Spring-Loaded Ground Conductor Elements

Patent: 5,654,849 →

Application: 08/547,640 →

Acoustic Vibration Decoupler for a Disk Drive Pivot Bearing Assembly

Patent: 5,675,456 →

Application: 08/561,340 →

Disk Drive Having Elastomeric Interface in Pivot Bearing Assembly

Patent: 5,666,242 →

Application: 08/561,344 →

Hardware Velocity Limit Control System

Patent: 5,768,045 →

Application: 08/575,659 →

Programmable Preamplifier Unit with Serial Interface for Disk Data Storage Device Using Mr Heads

Patent: 5,726,821 →

Application: 08/577,606 →

Servo-Track Writer System Having a Plurality of Engaging Pins Coaxially Rotated with Head Actuator Pivot Axes

Patent: 5,796,542 →

Application: 08/608,391 →

Buffered Nitrogenated Carbon Overcoat for Data Recording Disks and Method for Manufacturing the Same

Patent: 5,855,746 →

Application: 08/608,392 →

Self-Aligning Air Bearing for Use with Servo-Track Writer

Patent: 5,642,943 →

Application: 08/608,395 →

An Area Integrator Servo Demodulator with on-Chip Cmos Analog-to- Digital Converter

Patent: 5,661,483 →

Application: 08/609,266 →

Magnetic Latch Assembly for a Disk Drive Including a Ferromagnetic Holder Surrounding a Permanent Magnetic

Patent: 5,822,155 →

Application: 08/626,525 →

Verifying Write Operations in a Magnetic Disk Drive

Patent: 5,909,334 →

Application: 08/644,507 →

Analog-To-Digital Converter for Configuration Control

Patent: 5,710,675 →

Application: 08/657,447 →

Method for Seek Time Optimization Employing Voice-Coil Motor Current Saturation Level to Define an Adaptive Deceleration Profile

Patent: 5,793,558 →

Application: 08/658,345 →

Method and Apparatus for a Low-Profile Head-Suspension Attachment for a Disk Drive

Patent: 5,877,919 →

Application: 08/660,351 →

Decision Feedback Equalization Implementation of Partial-Response Signaling in a Magnetic Recording Channel

Patent: 5,822,143 →

Application: 08/661,573 →

Hard Disk Assembly Having a Pivot Bearing Assembly Comprising Fingers Bearing on a Shaft

Patent: 5,757,588 →

Application: 08/671,855 →

An Intelligent Disk Drive Having Spring Contacts on a Board Assembly F or Connecting to Exterior-Facing Electrical Contacts Coupled to a Spindle Motor

Patent: 5,751,514 →

Application: 08/671,901 →

Method and Apparatus for Providing Thermal Feedback Between an Analog Power Chip and a Digital Controller Chip in a Disk Controller System

Patent: 5,760,563 →

Application: 08/671,904 →

Disk Drive Head Actuator Fabrication System Employing Standardized Self-Aligning Modular Components

Patent: 5,862,019 →

Application: 08/672,146 →

Rotating Mass Balancing System

Patent: 5,824,898 →

Application: 08/673,370 →

Nethod and Apparatus for Controlling Disk Drive Head Parking During Power Interruption

Patent: 5,889,629 →

Application: 08/673,769 →

Disk Clamp for a Disk Drive for Evenly Distributing Clamping Force on Recording Medium

Patent: 5,790,346 →

Application: 08/674,769 →

Motor Start Acceleration Profile

Patent: 5,682,334 →

Application: 08/686,748 →

Method for Implementing an Indexed Jump Table

Patent: 5,860,156 →

Application: 08/686,814 →

Disk Drive Actuator Coil with Reduced Outgassing Characteristics

Patent: 5,726,835 →

Application: 08/687,663 →

Pulsed Alignment Commutation State for Sensorless Motor Start

Patent: 5,821,715 →

Application: 08/687,738 →

Method of Mapping Logical Sectors to Physical Sectors in a Disk Sparing Partition

Patent: 5,822,142 →

Application: 08/690,186 →

Hybrid Communication Method and Apparatus for a Three-Pase Brushless Dc Motor

Patent: 5,808,440 →

Application: 08/753,232 →

Rotary Actuator Arrangement and Method of Manufacture

Patent: 5,818,665 →

Application: 08/756,779 →

Retaining Apparatus for a Disk Drive Actuator Assembly Electrical Flex Circuit

Patent: 5,818,667 →

Application: 08/778,190 →

Head Stack Assembly Incorporating Plastic Binding Structure and Method of Manufacture

Patent: 5,715,117 →

Application: 08/783,392 →

Low-Inertia Actuator Coil for a Disk Drive

Patent: 5,768,061 →

Application: 08/794,133 →

Disk Drive Having Elastomeric Interface in Pivot Bearing Assembly

Patent: 5,914,837 →

Application: 08/797,551 →

Disk Drive Employing Read Error Tolerant Sync Mark Detection

Patent: 6,411,452 →

Application: 08/815,352 →

Acoustic Noise Reduction System for a Disk Drive

Patent: 5,781,373 →

Application: 08/816,099 →

Error Correction Code Circuit That Performs Built-in Self Test

Patent: 5,925,144 →

Application: 08/816,322 →

Pivot Bearing Assembly Providing Damping for Unit-to-Unit Consistency

Patent: 5,727,882 →

Application: 08/826,204 →

Air Bearing Slider Having Debris Removing Channels

Patent: 5,751,517 →

Application: 08/826,986 →

Swing-Type Actuator Assembly Having Internal Conductors

Patent: 5,781,380 →

Application: 08/831,986 →

Head Disk Assembly with Actuator Latch Vibration Damper

Patent: 5,815,350 →

Application: 08/831,988 →

Load Beam Assembly with Separate Spring and Hinge Functions

Patent: 5,796,554 →

Application: 08/831,991 →

Method of Texturing a Landing Zone

Patent: 5,942,279 →

Application: 08/832,024 →

Stacked Arms Assembled in a Head Disk Assembly

Patent: 5,731,934 →

Application: 08/834,646 →

Slider Having a Debris Barrier Surrounding a Transducer

Patent: 5,831,792 →

Application: 08/837,079 →

Multimode Frequency Synthesizer Having High Loop Gain in Frequency Seek Mode

Patent: 5,861,766 →

Application: 08/844,221 →

Non-Quadrature Servo Burst Pattern for Micro-Jogging a Magnetoresistive Head in a Magnetic Disk Drive

Patent: 6,014,283 →

Application: 08/856,670 →

Disk Drive Cache System Using a Dynamic Priority Sequential Stream of Data Segments Continuosly Adapted According to Prefetched Sequential, Random, and Repeating Types of Accesses

Patent: 6,092,149 →

Application: 08/864,525 →

Hard Disk Drive Having a Built-in Self-Test for Measuring Readback Signal Distortion

Patent: 6,208,477 →

Application: 08/870,515 →

Disk Drive Having a Mass Balanced Head Gimbal Assembly

Patent: 5,936,803 →

Application: 08/870,617 →

Method for Manufacturing a Disk Drive

Patent: 6,467,153 →

Application: 08/873,230 →

Publication: US 2002/0040518

Disk Drive Employing Allocation-Based Scan Reporting

Patent: 5,970,508 →

Application: 08/881,081 →

Disk Drive with Adaptively Segmented Cache

Patent: 5,966,726 →

Application: 08/881,518 →

Disk Drive with Cache Having Entry Table Prioritized to Reduce Scanning Time for Sequential Streams

Patent: 5,915,260 →

Application: 08/882,531 →

Disk Drive Selectively Controlled to Provide Cache Scan Before Seek

Patent: 5,937,426 →

Application: 08/882,696 →

A Cache Controlled Disk Drive System for Adaptively Exiting a Hyper Random Mode When Either a Cache Hit Occurs or a Sequential Command Is Detected

Patent: 5,954,801 →

Application: 08/882,761 →

Disk Drive with Cache Repeatedly Accessed for a Read Command to Provide Prefetched Data

Patent: 5,920,887 →

Application: 08/883,527 →

Disk Drive with Cache Controlled Adaptively for Amount of Prefetch

Patent: 5,890,211 →

Application: 08/884,281 →

Disk Drive with Cache Employing Host Pointer Jumps During Skip-Ahead or Semi-Repeating Accesses

Patent: 5,890,212 →

Application: 08/884,437 →

Self-Pes Linearity Calibration Method for Mr Head

Patent: 5,946,158 →

Application: 08/893,815 →

Method of Seamlessly Recording Circumferentially Successive Servo Bursts That Overlap One Another

Patent: 5,946,157 →

Application: 08/895,248 →

A Head Stack Assembly Having a Coil Portion for Damping Vibrations Which Includes Elongated Openings in the Plastic Portion

Patent: 5,790,348 →

Application: 08/898,540 →

Disk Drive with Separately Determined Servo and Data Track Pitch

Patent: 6,052,250 →

Application: 08/918,025 →

Initialization Method and Apparatus for a Runout Cancellation Method

Patent: 5,995,316 →

Application: 08/921,271 →

Constant Velocity Servo Linearity Calibration Method for Mr Head

Patent: 5,940,240 →

Application: 08/921,398 →

Etching and Pipelined Texturing of a Substrate in a Stationary Vacuum Deposition Machine

Patent: 5,910,235 →

Application: 08/928,985 →

Repeatable Run Out Cancellation in Sectored Servo Disk Drive Positioning System

Patent: 6,141,175 →

Application: 08/946,805 →

A Method and Apparatus for Optimizing the Data Transfer Rate to and from a Plurality of Disk Surfaces

Patent: 6,105,104 →

Application: 08/953,810 →

Storage System Employing High-Rate Code with Constraint on Run Length Between Occurrences of an Influential Pattern

Patent: 6,246,346 →

Application: 08/957,763 →

Head Disk Assembly Having a Washer Between a Disk Clamp and Disk and Method of Making

Patent: 5,877,571 →

Application: 08/960,661 →

Disk Drive Employing Dynamically Reconfigured Read Channel to Process a Read Signal at Two Different Frequencies

Patent: 5,956,196 →

Application: 08/963,262 →

Disk Drive with Adaptive Pooling for Command Reordering

Patent: 6,145,052 →

Application: 08/963,772 →

Method and Apparatus for Optimizing the Servo Read Channel of a Hard Disk Drive

Patent: 6,078,453 →

Application: 08/967,123 →

Magnetic Disk Drive Having a Z-Shaped Grounding Portion in the Flex Circuit Cable

Patent: 5,909,338 →

Application: 08/970,578 →

Magnetic Disk Drive Having a Vcm Plate Which Includes an Elongated Protrusion for Securing a Flex Clamp to the Base

Patent: 5,905,609 →

Application: 08/971,153 →

Head Stack Assembly for a Magnetic Disk Drive with a Pass-Through Flex Circuit Cable

Patent: 5,953,183 →

Application: 08/971,355 →

Control System for Allowing Multiple Chips of a Disk Drive to Safely Assert and De-Assert a Reset Signal on a Reset Line

Patent: 5,825,708 →

Application: 08/972,405 →

Method and Apparatus to Compensate for Servo Wedge Rotational Offset After a Head Switch

Patent: 6,067,206 →

Application: 08/972,655 →

Voltage Feedforward Control System for a Spindle Motor of a Disk Drive

Patent: 5,898,283 →

Application: 08/972,939 →

Disk Drive with Cache Segment Providing Adaptively Managed Chunks

Patent: 6,018,789 →

Application: 08/976,895 →

Disk Drive with Cache Having Adaptively Aged Segments

Patent: 5,890,213 →

Application: 08/984,114 →

Disk Drive with Voice Coil Motor Rise Time Manager

Patent: 6,122,135 →

Application: 08/994,475 →

Magnetic Disk Having a Heat Sink Layer Above the Substrate and Method of Making

Patent: 5,981,017 →

Application: 08/994,782 →

Head Stack Assembly for a Disk Drive Having a Plastic Inner Sleeve

Patent: 5,894,382 →

Application: 09/002,644 →

Method of Characterizing and Compensating for Read Head Nonlinearity in a Disk Drive

Patent: 5,982,173 →

Application: 09/003,388 →

Disk Drive with Servo Burst Phasing for Improved Linearity and Off-Track Performance with a Wide Reading Transducer

Patent: 6,243,223 →

Application: 09/007,698 →

Mechanical Actuator Latch Subassembly with Overcentering Spring for a Disk Drive

Patent: 5,982,587 →

Application: 09/015,680 →

Swing Type Structure Having an Elongated Column and Wires Positioned on Opposite Sides of the Column Such That the Column Is in Compression as a Result of the Wires

Patent: 5,805,388 →

Application: 09/022,649 →

Disk Drive Having Built-in Self-Test System for Characterizing Performance of the Drive

Patent: 6,292,912 →

Application: 09/032,220 →

Disk Drive Comprising a Programmable Preamplifier Including a Multiplexer for Selecting Between Internal Digital Signals for Output to a Terminal

Patent: 6,111,717 →

Application: 09/036,375 →

Disk Drive with Dual Stage Actuator Radial Offset Calibration

Patent: 6,292,320 →

Application: 09/046,804 →

Disk Drive with Seek Profile Selection Based on Read/Write Operation

Patent: 6,101,065 →

Application: 09/050,519 →

Head Stack Assembly for a Disk Drive Having a Unitary Molded Plastic E-Block

Patent: 6,061,206 →

Application: 09/060,868 →

High Bandwidth Code/Data Access Using Slow Memory

Patent: 6,175,893 →

Application: 09/066,077 →

Disk Drive with Straggered Calibration Burst That Are Disposably Located in Data Regions and Method of Using the Same for Calibrating a Read Head

Patent: 6,198,584 →

Application: 09/070,945 →

Disk Drive with Calibration Bursts That Are Recorded on a Spiral and Method of Recording the Same

Patent: 6,091,564 →

Application: 09/071,390 →

Multiple Station Vacuum Deposition Apparatus for Texturing a Substrate Using a Scanning Beam

Patent: 6,200,441 →

Application: 09/086,000 →

Disk Drive Having a Write Condition Detector for Suspending Write Operations While a Transducer Flying Height Deviates from Its Operating Flying Height

Patent: 6,249,393 →

Application: 09/098,319 →

Disk Drive with Reduced Thermal Expansion Induced Disk Slip

Patent: 6,185,067 →

Application: 09/099,129 →

Hybrid Method of Determining a Fractional Track Position of a Read Transducer in a Hard Disk Drive

Patent: 6,122,133 →

Application: 09/099,485 →

Servo Track Writer Having a Servo Writer Positioning Arm with a Vibration Damper and a Method of Making a Head Disk Assembly

Patent: 6,147,831 →

Application: 09/100,197 →

Hdd Head Stack Assembly Having Conductive Traces Supported by the Sides of the Actuator Arm to Extend in Planar Arrays

Patent: 5,991,123 →

Application: 09/102,595 →

Method of Making a Head Disk Assembly Using a Propagated Light Beam to Detect a Clearance Between a Disk and a Head

Patent: 6,052,890 →

Application: 09/102,598 →

Faster Spin-Down Operation in a Disk Drive by Utilizing Pulsed Braking

Patent: 6,160,368 →

Application: 09/102,601 →

Disk Drive Employing Method of Writing a Data Block to a Data Sector Following a Defective Servo Sector

Patent: 6,078,452 →

Application: 09/102,982 →

Disk Drive Including a Recording Surface Employing Servo Zones with Banded Data Zones

Patent: 6,262,857 →

Application: 09/103,674 →

Method of Centering a Disk Pack of a Disk Drive

Patent: 6,101,876 →

Application: 09/103,791 →

Disk Drive Which Efficiently Stores Zone Parameter Sets for a Plurality of Disk Surfaces

Patent: 6,195,218 →

Application: 09/105,122 →

Method for Manufacturing a Disk Drive Including Writing Dual Clock Tracks for Servo Writing

Patent: 6,388,833 →

Application: 09/106,425 →

Disk Drive Having Two Tiered Defect List Comprising Marginal and Reserved Data Sectors

Patent: 6,223,303 →

Application: 09/106,830 →

Faster Access Time in a Disk Drive by Utilizing Increased Vcm Potential Voltage

Patent: 6,181,502 →

Application: 09/108,597 →

Disk Drive Employing Method of Spinning Down Its Spindle Motor to Reduce the Time Required for Subsequently Spinning It Up

Patent: 6,198,590 →

Application: 09/120,854 →

Buffered Nitrogenated Carbon Overcoat for Data Recording Disks and Method for Manufacturing the Same

Patent: 6,136,403 →

Application: 09/122,195 →

Disk Drive Having Data-Guarding Firmware

Patent: 6,327,106 →

Application: 09/138,805 →

Disk Drive Capable of Autonomously Evaluating and Adapting the Frequency Response of Its Servo Control System

Patent: 6,204,988 →

Application: 09/138,841 →

Disk Drive Having a Pivot Assembly Which Defines a Knife Edge Facing in a Direction Perpendicular to the Longitudinal Axis of an Actuator Arm

Patent: 6,046,889 →

Application: 09/160,366 →

Disk Drive Including Dc to Dc Voltage Converter for Increasing Voltage to Its Spindle Motor and Vcm

Patent: 6,342,984 →

Application: 09/162,657 →

Digital-To-Analog Converter Having High Resolution and High Bandwidth

Patent: 6,052,076 →

Application: 09/172,938 →

Disk Drive Including Strain Transducer for Detecting Mechanical Shock

Patent: 6,417,979 →

Application: 09/177,898 →

Disk Drive with Seek Profile Selection Based on a Queued Vs. Non-Queued Environment

Patent: 6,195,222 →

Application: 09/186,786 →

Disk Drive Utilizing Bemf of Spindle Motor to Increase Vcm Voltage During Seeks

Patent: 6,094,020 →

Application: 09/193,891 →

Charging Capacitor During Track Following in Disk Drive to Provide Increased Vcm Voltage During a Seek

Patent: 5,965,992 →

Application: 09/196,025 →

Controller with Automatic Generation of Linked List of Data Transfer Descriptors for Sequential Commands, with Linked List Being Used for Execution of Sequential Data Transfers

Patent: 6,205,494 →

Application: 09/215,414 →

Disk Drive Spindle Motor with Embedded Ionizing Source for Static Charge Dissipation

Patent: 6,151,189 →

Application: 09/221,614 →

Inertial Latch Having an Interposer That Prevents the Head from Leaving the Ramp Load During a Shock Event

Patent: 6,185,074 →

Application: 09/222,535 →

Disk Drive Employing Read Channel Ic with Common Port for Data and Servo

Patent: 6,278,568 →

Application: 09/223,475 →

Water Slide Suspension Assembly Having a Stiffened Vertically Offset Lift Tab

Patent: 6,151,197 →

Application: 09/223,489 →

Disk Drive Spindle Motor with Wire Guide Insert

Patent: 6,215,616 →

Application: 09/225,161 →

Disk Drive with Zero Read Offset in Reserved Area and Method of Making Same

Patent: 6,320,718 →

Application: 09/227,101 →

Disk Drive Having a Cache Portion for Storing Write Data Segments of a Predetermined Length

Patent: 6,408,357 →

Application: 09/232,746 →

Disk Drive with Method of Constructing a Continuous Position Signal and Constrained Method of Linearizing Such Position Signal While Maintaining Continuity

Patent: 6,369,974 →

Application: 09/248,087 →

Disk Drive Having an I.D. Ramp Loading System Employing Multiple-Function Spacer Structure

Patent: 6,292,333 →

Application: 09/248,923 →

Disk Drive Employing Method of Spinning Down Its Spindle Motor to Reduce the Time Required for Spinning It Down and Subsequently Spinning It Up

Patent: 6,104,153 →

Application: 09/256,645 →

Disk Drive Method of Determining Scsi Bus State Information After a Scsi Bus Reset Condition

Patent: 6,256,695 →

Application: 09/268,620 →

Disk Drive Employing Power Source Modulation for Reduciing Power Consumption

Patent: 6,285,521 →

Application: 09/276,255 →

Defective Data Site Management Through a Shared Defect Management Table

Patent: 6,279,089 →

Application: 09/290,457 →

Rewrite with Embedded Reassign for Data Recovery from Marginally Defective Data Sites on a Data Storage Device

Patent: 6,384,999 →

Application: 09/290,460 →

Disk Drive Employing State Variable Trap Registers for Providing Stored Servo and User Data State Variables to Sampled-Data Channel

Patent: 6,178,056 →

Application: 09/293,487 →

Disk Drive Employing Method of Monitoring Transducer Flying Height to Retire Defective Data Site on Recording Surface

Patent: 6,411,458 →

Application: 09/298,363 →

Temperature Monitoring Method of a Disk Drive Voice Coil Motor from a Traveled Distance

Patent: 6,369,972 →

Application: 09/311,913 →

Spindle Motor Flange Land Portion

Patent: 6,208,486 →

Application: 09/312,310 →

Printed Circuit Assembly Having Integrated Resistors for Terminating Data and Control Lines of a Host-Peripheral Interface

Patent: 6,480,020 →

Application: 09/314,277 →

Disk Drive Employing Off-Line Scan to Collect Selection-Control Data for Subsequently Deciding Whether to Verify After Write

Patent: 6,289,484 →

Application: 09/314,871 →

Disk Drive Employing Vector Addition of Primary Phase Write Clock Signals for Generating Secondary Phase Write Clock Signal

Patent: 6,337,778 →

Application: 09/318,477 →

Method of Continuously Recording Servo Bursts Along One Continuous, Single Helix Spiral

Patent: 6,507,450 →

Application: 09/330,756 →

Disk Drive Including N-Current Preamplifier for Generating N-Independently Controlled Write Currents

Patent: 6,310,740 →

Application: 09/342,670 →

Servowriter Employing Method of Unlatching Actuator Arm Using Vcm Voltage Limiting Circuit to Limit Actuator Arm Velocity

Patent: 6,498,698 →

Application: 09/342,793 →

Disk Drive Employing Method of Unlatching Actuator Arm Using Vcm Voltage Limiting Circuit to Limit Actuator Arm Velocity

Patent: 6,496,324 →

Application: 09/342,795 →

High Servo Sampling Disk Drive with Minimum Overhead

Patent: 6,388,829 →

Application: 09/364,744 →

Disk Drive Including Resilient Securing System Providing Relative Movement Between Side Rails and Head Disk Assembly to Accommodate Side Rails Engaging Guide Channels in a Chassis

Patent: 6,388,873 →

Application: 09/378,291 →

Hard Disk Drive Infant Mortality Test

Patent: 6,408,406 →

Application: 09/387,677 →

Disk Drive Employing a Multiple-Input Sequence Detector Responsive to Reliability Metrics to Improve a Retry Operation

Patent: 6,405,342 →

Application: 09/393,511 →

Disk Drive That Supports a List-Requesting Command for Enabling a Host Computer to Assist in Rescuing a Rescue- Candidate Location Having Drive-Unrecoverable Data

Patent: 6,412,083 →

Application: 09/397,837 →

Method for Memory Allocation in a Disk Drive Employing a Chunk Array and Identifying a First Available Element for Write Caching

Patent: 6,092,150 →

Application: 09/398,566 →

Method for Memory Allocation in a Disk Drive Employing a Chunk Array and Identifying a Largest Available Element for Write Caching

Patent: 6,065,095 →

Application: 09/398,920 →

Method for Memory Allocation in a Disk Drive Employing a Chunk Array and Identifying a Smallest Available Element for Write Caching

Patent: 6,094,707 →

Application: 09/398,922 →

Disk Drives and Disk Drive-Containing Devices Having Selectively Controllable and/or Adaptive Quiet and High Performance Modes of Operation

Patent: 6,757,481 →

Application: 09/401,069 →

Enhanced Interface for Electrostatic Discharge Garment

Patent: 6,272,694 →

Application: 09/401,971 →

Head Disk Assembly Including Ramp Having Pivoting Locational Features

Patent: 6,344,950 →

Application: 09/406,254 →

Method of Operating a Disk Drive for Reading and Writing Audiovisual Data on an Urgent Basis

Patent: 6,690,882 →

Application: 09/406,327 →

Headerless Disk Drive Comprising Repeatable Runout (Rro) Correction Values Recorded at a User Data Rate

Patent: 6,493,173 →

Application: 09/436,930 →

Disk Drive Including a Vibration Damping System Having a Compressible Foam and Mass Damper Fixed Adjacent to the Outer Surface of a Printed Circuit Board for Reducing Noise and Vibration

Patent: 6,288,866 →

Application: 09/444,016 →

Method of Operating a Disk Drive for Writing to an Addressable Location After Detecting That a Head Is Within a Safe-to-Write Window

Patent: 6,445,524 →

Application: 09/458,527 →

Error Rate Measurement in Disk Drive by Weighting Data-Recovery Procedures

Patent: 6,317,850 →

Application: 09/484,059 →

Disk Drive with Unified Channel-Disk Controller Bus for Transmitting User Data, Servo Data, and Register Data

Patent: 6,415,349 →

Application: 09/489,856 →

Disk Drive Having a Channel Circuit Which Receives a Read Signal Representing Data in a Data Sector and Data in a Servo Sector in a First Order and Demodulates the Read Signal to Provide Data Sector Data and Servo-Sector Data in a Second Order

Patent: 6,580,573 →

Application: 09/490,330 →

Method of Calibrating a Write Current-Setting for Servo Writing a Disk Drive

Patent: 6,525,892 →

Application: 09/493,751 →

Disk Drive Comprising an Actuator Driver Circuit for Retracting a Head Independent of a Servo Microprocessor When a Spindle Speed Fault Mode Is Detected

Patent: 6,476,996 →

Application: 09/505,009 →

Disk Drive Employing a Non-Vilatile Semiconductor Memory for Storing Read Channel Parameter Calibrated for the Disk Drive Used to Recover Disk Channel Parameter

Patent: 6,480,349 →

Application: 09/513,316 →

Method of Using Two Low-Resolution Dacs for Converting High-Resolution Digital Demands into Analog Output Signals That Monotonically Drive an Actuator Motor in a Disk Drive

Patent: 6,281,652 →

Application: 09/536,067 →

DISK DRIVE WITH FEED-FORWARD CONTROL PATH THAT RECEIvES A REFERENCE POSITION SIGNAL TO APPLY A FEED-FORWARD COMMAND EFFORT AT A RATE GREATER THAN A SERVO SAMPLING RATE

Patent: 6,614,618 →

Application: 09/538,931 →

Disk Drive with Adaptive Control Path That Produces an Adaptive Control Effort Based on a Characterized Deviation Between Actual and Modeled Plant Response

Patent: 6,614,615 →

Application: 09/539,349 →

Preamplifier Circuit Configurable to Allow Simultaneous Read and Write Operations for Self-Servo Writing a Disk Drive

Patent: 6,693,760 →

Application: 09/540,445 →

Self-Servo Writing a Disk Drive by Propagating Interleaved Sets of Timing Clocks and Servo Bursts During Alternate Time Intervals

Patent: 6,600,620 →

Application: 09/541,136 →

Self-servo writing a disk drive using a head having a read element and a write element which do not overlap

Application: 09/541,152 →

Disk Drive Using Defect List to Perform Uninterrupted Writing of Non-Relocated Data Blocks and Caching of Relocated Data Blocks for Deferred Writing

Patent: 6,606,714 →

Application: 09/550,465 →

Disk Drive Employing Spindle Motor Commutation Time Variation for Reducing Acoustic Noise

Patent: 6,493,169 →

Application: 09/551,925 →

Range-Based Cache Control System and Method

Patent: 6,601,137 →

Application: 09/552,399 →

Disk Drive Comprising Spin Down Circuitry Having a Power Clamp Circuit for Enhancing Power and Braking Control

Patent: 6,549,361 →

Application: 09/552,400 →

Cache Control System and Method Having Hardware-Based Tag Record Allocation

Patent: 6,725,329 →

Application: 09/552,402 →

Disk Drive Comprising a Demand Limit Circuit for Enhancing Power Management During Spin Down

Patent: 6,574,062 →

Application: 09/552,403 →

Tag Memory Disk Cache Architecture

Patent: 6,553,457 →

Application: 09/552,404 →

Cluster-Based Cache Memory Allocation

Patent: 6,606,682 →

Application: 09/552,407 →

Disk Drive Employing Method of Spinning Up Spindle Motor Including Detecting Bemf Polarity Change for Selecting Initial Commutation State

Patent: 6,534,936 →

Application: 09/560,918 →

Publication: US 2002/0084760

Conflict Detection for Queued Command Handling in a Disk Drive Controller

Patent: 6,490,635 →

Application: 09/561,228 →

Disk Drive Employing a Voice Coil Motor Comprising a Yoke for Generating a Unidirectional Magnetic Flux and a Voice Coil Partially Interacting with the Unidirectional Magnetic Flux

Patent: 6,421,208 →

Application: 09/584,652 →

Method of making a balance-compensated rotary actuator based upon track-follow performance of a rotatable test head stack assembly portion

Patent: 6,349,464 →

Application: 09/584,837 →

Disk Drive Having Separate Motion Sensors for Base and Actuator

Patent: 6,674,600 →

Application: 09/585,101 →

Compensating for Vortex Shedding in a Disk Drive by Modifying the Thickness of an Actuator Arm

Patent: 6,441,998 →

Application: 09/585,127 →

Accelerated Media Scan Method for Detection of Disk Drive Handling Damage

Patent: 6,691,255 →

Application: 09/585,128 →

Disk Drive Comprising Spin Down Circuitry Having a Programmable Signal Generator for Enhancing Power and Braking Control

Patent: 6,577,465 →

Application: 09/585,244 →

Disk Drive Comprising Spin Down Circuitry Having a Current Limit Circuit for Enhancing Power and Braking Control

Patent: 6,549,359 →

Application: 09/585,805 →

Polling a preamplifier within a disk drive to remotely determine pre-established parametric values

Patent: 6,191,909 →

Application: 09/593,315 →

Repeatable runout cancellation in sectored servo disk drive positioning system

Patent: 6,310,742 →

Application: 09/603,809 →

Method of Tuning Feed-Forward Control in a Disk Drive

Patent: 6,636,377 →

Application: 09/608,573 →

Cache Control Method and System for Mixed Streaming and Non-Streaming Data

Patent: 6,606,717 →

Application: 09/628,892 →

Method and Apparatus for Balancing a Rotary Actuator by Modifying Weight Distributon Characteristics of the Rotary Actuator for Locating an Installed Head Stack Assembly Portion Center-of-Gravity Along a Pivot Axis

Patent: 6,502,300 →

Application: 09/630,070 →

Related Assignments (23)

Other recorded transfers of the patents in this record — the chain of ownership.

Assignment of Assignors Interest. Nov 4, 1982

From: AMBROSIUS, WILLIAM H. III; CHUNG, RANDALL

To: WESTERN DIGITAL CORPORATION

Reel/Frame 004059/0872 →

Assignment of Assignors Interest. Sep 26, 1985

From: LOFGREN, KARL M. J.; SHEAVER, GERALD W.; FRANK, CHARLES W. JR.

To: WESTERN DIGITAL CORPORATION, A CA CORP

Reel/Frame 004463/0201 →