Patent | Date |
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Systems and methods for data throttling during disk drive power down Grant 9,001,449 - Bennett , et al. April 7, 2 | 2015-04-07 |
Switching voltage regulator employing current pre-adjust based on power mode Grant 8,912,778 - Bennett , et al. December 16, 2 | 2014-12-16 |
Dual frequency crystal oscillator Grant 8,902,529 - Bennett December 2, 2 | 2014-12-02 |
Analog-to-digital Converter With Input Voltage Biasing Dc Level Of Resonant Oscillator App 20140139363 - BENNETT; George J. | 2014-05-22 |
Analog-to-digital converter with input voltage biasing DC level of resonant oscillator Grant 8,711,027 - Bennett April 29, 2 | 2014-04-29 |
Systems and methods for data throttling during disk drive power down Grant 8,630,054 - Bennett , et al. January 14, 2 | 2014-01-14 |
Analog-to-digital converter comprising dual oscillators for linearity compensation Grant 8,421,663 - Bennett April 16, 2 | 2013-04-16 |
Systems And Methods For Data Throttling During Disk Drive Power Down App 20130070363 - Bennett; George J. ;   et al. | 2013-03-21 |
Ensuring minimum gate speed during startup of gate speed regulator Grant 8,390,367 - Bennett March 5, 2 | 2013-03-05 |
Gate speed regulator dithering ring oscillator to match critical path circuit Grant 8,350,628 - Bennett January 8, 2 | 2013-01-08 |
Regulating power consumption of digital circuitry using a multi-layer ring oscillator Grant 8,324,974 - Bennett December 4, 2 | 2012-12-04 |
Methods and systems for fast release of data from a host by a disk drive Grant 8,134,793 - Vasquez , et al. March 13, 2 | 2012-03-13 |
Disk drive adjusting command execution in response to control circuitry die temperature Grant 8,090,902 - Bennett , et al. January 3, 2 | 2012-01-03 |
Switching voltage regulator employing dynamic voltage scaling with hysteretic comparator Grant 8,085,020 - Bennett December 27, 2 | 2011-12-27 |
Disk drive flushing write cache to a nearest set of reserved tracks during a power failure Grant 7,800,856 - Bennett , et al. September 21, 2 | 2010-09-21 |
Disk drive employing coarse position feedback from mechanical position sensor to improve format efficiency Grant 7,760,461 - Bennett July 20, 2 | 2010-07-20 |
Oscillator comprising foldover detection Grant 7,733,189 - Bennett June 8, 2 | 2010-06-08 |
Disk drive employing coarse position feedback from mechanical position sensor to improve format efficiency Grant 7,701,661 - Bennett April 20, 2 | 2010-04-20 |
Disk drive comprising a servo accelerator implementing state space equations for a plurality of task objects Grant 7,697,233 - Bennett , et al. April 13, 2 | 2010-04-13 |
Disk drive comprising a servo accelerator employing a dual state variable memory Grant 7,656,607 - Bennett February 2, 2 | 2010-02-02 |
Disk drive comprising a mechanical position sensor to prevent a runaway condition Grant 7,619,844 - Bennett November 17, 2 | 2009-11-17 |
Servo writing a disk drive by writing spiral tracks using a mechanical position sensor Grant 7,495,857 - Bennett February 24, 2 | 2009-02-24 |
Switching voltage regulator comprising a cycle comparator for dynamic voltage scaling Grant 7,486,060 - Bennett February 3, 2 | 2009-02-03 |
Disk drive employing coarse position feedback from mechanical position sensor to improve format efficiency Grant 7,480,116 - Bennett January 20, 2 | 2009-01-20 |
Disk drive comprising an optical sensor for vibration mode compensation Grant 7,365,932 - Bennett April 29, 2 | 2008-04-29 |
Adjusting on-time for a discontinuous switching voltage regulator Grant 7,330,019 - Bennett February 12, 2 | 2008-02-12 |
Disk drive using an optical sensor to detect a position of an actuator arm Grant 7,215,504 - Bennett May 8, 2 | 2007-05-08 |
Disk drive pulse width modulating a voice coil motor using model reference current feedback Grant 7,209,321 - Bennett April 24, 2 | 2007-04-24 |
Adjusting power consumption of digital circuitry relative to critical path circuit having the largest propagation delay error Grant 7,205,805 - Bennett April 17, 2 | 2007-04-17 |
Adjusting power consumption of digital circuitry by generating frequency error representing error in propagation delay Grant 7,129,763 - Bennett , et al. October 31, 2 | 2006-10-31 |
Disk drive employing a multi-stage pulse width modulated voice coil motor driver Grant 7,126,781 - Bennett October 24, 2 | 2006-10-24 |
Disk drive using a timer to arbitrate periodic serial communication with a power driver Grant 7,106,537 - Bennett September 12, 2 | 2006-09-12 |
Disk drive comprising a multi-phase spindle motor having a center tap connectable to a secondary supply voltage Grant 7,006,320 - Bennett , et al. February 28, 2 | 2006-02-28 |
Disk drive comprising a pulse width modulated demand limit circuit for enhancing power management during spin-down Grant 6,970,319 - Bennett , et al. November 29, 2 | 2005-11-29 |
Decreasing spin up time in a disk drive by adjusting a duty cycle of a spindle motor PWM signal to maintain constant average input current Grant 6,967,458 - Bennett , et al. November 22, 2 | 2005-11-22 |
Disk drive controlling ripple current of a voice coil motor when driven by a PWM driver Grant 6,965,488 - Bennett November 15, 2 | 2005-11-15 |
Disk drive reading servo sectors recorded at a relative offset on multiple disk surfaces to increase the servo sample rate Grant 6,952,322 - Codilian , et al. October 4, 2 | 2005-10-04 |
Disk drive comprising control circuitry powered by a secondary voltage supplied by a center tap of a spindle motor during a normal operating mode Grant 6,876,508 - Patton, III , et al. April 5, 2 | 2005-04-05 |
Disk drive comprising oscillators and counters for sensing current in a voice coil motor Grant 6,850,384 - Bennett February 1, 2 | 2005-02-01 |
Disk drive comprising current sense circuitry for a voice coil motor Grant 6,850,383 - Bennett February 1, 2 | 2005-02-01 |
Split VCM actuator Grant 6,847,504 - Bennett , et al. January 25, 2 | 2005-01-25 |
Disk drive comprising an integrator for controlling a VCM actuator and transformer for controlling a piezoelectric actuator Grant 6,747,837 - Bennett June 8, 2 | 2004-06-08 |
Disk drive control system and method for determining the temperature of an actuator coil Grant 6,731,450 - Codilian , et al. May 4, 2 | 2004-05-04 |
Disk drive comprising spin down circuitry having a programmable signal generator for enhancing power and braking control Grant 6,577,465 - Bennett , et al. June 10, 2 | 2003-06-10 |
Disk drive comprising a demand limit circuit for enhancing power management during spin down Grant 6,574,062 - Bennett , et al. June 3, 2 | 2003-06-03 |
Multi-axis accelerometer comprising a mass suspended by springs above an optical sensor Grant 6,568,268 - Bennett May 27, 2 | 2003-05-27 |
Disk drive comprising spin down circuitry having a current limit circuit for enhancing power and braking control Grant 6,549,359 - Bennett , et al. April 15, 2 | 2003-04-15 |
Disk drive comprising spin down circuitry having a power clamp circuit for enhancing power and braking control Grant 6,549,361 - Bennett , et al. April 15, 2 | 2003-04-15 |
Spindle motor including stator with magnetic flux guides Grant 6,545,382 - Bennett April 8, 2 | 2003-04-08 |
Accelerometer signal processor comprising variable oscillators and counters Grant 6,484,577 - Bennett November 26, 2 | 2002-11-26 |
Digital-to-analog converter having high resolution and high bandwidth Grant 6,052,076 - Patton, III , et al. April 18, 2 | 2000-04-18 |
Hybrid communication method and apparatus for a three-phase brushless DC motor Grant 5,808,440 - Bennett , et al. September 15, 1 | 1998-09-15 |
Method and apparatus for providing thermal feedback between an analog power chip and a digital controller chip in a disk controller system Grant 5,760,563 - Bennett , et al. June 2, 1 | 1998-06-02 |
PI or PID control loop with self-limiting integrator Grant 5,384,526 - Bennett January 24, 1 | 1995-01-24 |