Patents by Inventor Matthew T. White
Matthew T. White has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240093634Abstract: A vehicle includes a component coated with a pollutant reduction catalyst configured to remove pollutants from a flow of air over the component, a catalyst temperature sensor coupled to the component, a general temperature sensor, a vehicle speed sensor, and an active grille shutter (AGS) system having a plurality of movable grille shutters. A controller is configured to determine an efficiency of the pollutant reduction catalyst based on signals from the catalyst temperature sensor, the general temperature sensor, the vehicle speed sensor, and the AGS system.Type: ApplicationFiled: September 19, 2022Publication date: March 21, 2024Inventors: Roger C Sager, Steven C Wante, Aurora J White, Robert L Roy, Daniel E Hornback, Matthew T Bartlett
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Patent number: 11438283Abstract: A system and method simulate conversation with a human user. The system and method receive media, convert the media into a system-specific format, and compare the converted media to a vocabulary. The system and method generate a plurality of intents and a plurality of sub-entities and transform them into a pre-defined format. The system and method route intents and the sub-entities to a first selected knowledge engine and a second knowledge engine. The first selected knowledge engine selects the second knowledge engine and each active grammar in the vocabulary uniquely identifies each of the knowledge engines.Type: GrantFiled: March 24, 2022Date of Patent: September 6, 2022Assignee: PROGRESSIVE CASUALTY INSURANCE COMPANYInventors: Matthew T. White, Brian J. Surtz, Callen C. Cox
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Patent number: 11297016Abstract: A system and method simulates conversation with a human user. The system and method receive media, convert the media into a system-specific format, and compare the converted media to a vocabulary. The system and method generate a plurality of intents and a plurality of sub-entities and transform them into a pre-defined format. The system and method route intents and the sub-entities to a first selected knowledge engine and a second knowledge engine. The first selected knowledge engine selects the second knowledge engine and each active grammar in the vocabulary uniquely identifies each of the knowledge engines.Type: GrantFiled: May 7, 2019Date of Patent: April 5, 2022Assignee: PROGRESSIVE CASUALTY INSURANCE COMPANYInventors: Matthew T. White, Brian J. Surtz, Callen C. Cox
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Patent number: 10305826Abstract: A system and method simulates conversation with a human user. The system and method receive media, convert the media into a system-specific format, and compare the converted media to a vocabulary. The system and method generate a plurality of intents and a plurality of sub-entities and transform them into a pre-defined format. The system and method route intents and the sub-entities to a first selected knowledge engine and a second knowledge engine. The first selected knowledge engine selects the second knowledge engine and each active grammar in the vocabulary uniquely identifies each of the knowledge engines.Type: GrantFiled: May 3, 2018Date of Patent: May 28, 2019Assignee: Progressive Casualty Insurance CompanyInventors: Matthew T. White, Brian J. Surtz, Callen C. Cox
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Patent number: 10148600Abstract: A system and method simulates conversation with a human user. The system and method receive media, convert the media into a system-specific format, and compare the converted media to a vocabulary. The system and method generate a plurality of intents and a plurality of sub-entities and transform them into a pre-defined format. The system and method route intents and the sub-entities to a first selected knowledge engine and a second knowledge engine. The first selected knowledge engine selects the second knowledge engine and each active grammar in the vocabulary uniquely identifies each of the knowledge engines.Type: GrantFiled: May 17, 2018Date of Patent: December 4, 2018Assignee: PROGRESSIVE CASUALTY INSURANCE COMPANYInventors: Matthew T. White, Brian J. Surtz, Callen C. Cox
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Patent number: 7882390Abstract: A method for repairing at least one defective servo segment of a servo sector having at least one defective servo track written on a magnetic recording media. The method comprises mapping the magnetic recording media for locations of the defective servo segment of the servo sector. A non-defective segment of the servo sector is replicated at least once on the magnetic recording media in a customer data zone, thereby creating at least one good servo segment copy of the servo sector. The good servo segment copy is propagated through the customer data zone associated with the defective servo segment. The good servo segment copy is copied onto the magnetic recording media previously occupied by the defective servo segment of the servo sector.Type: GrantFiled: December 31, 2007Date of Patent: February 1, 2011Assignee: Hitachi Global Storage Technologies, Netherlands B.V.Inventors: Gary A. Herbst, Jong-Ming Lin, Michael A. Moser, Matthew T. White
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Publication number: 20090168226Abstract: A method for repairing at least one defective servo segment of a servo sector having at least one defective servo track written on a magnetic recording media. The method comprises mapping the magnetic recording media for locations of the defective servo segment of the servo sector. A non-defective segment of the servo sector is replicated at least once on the magnetic recording media in a customer data zone, thereby creating at least one good servo segment copy of the servo sector. The good servo segment copy is propagated through the customer data zone associated with the defective servo segment. The good servo segment copy is copied onto the magnetic recording media previously occupied by the defective servo segment of the servo sector.Type: ApplicationFiled: December 31, 2007Publication date: July 2, 2009Inventors: Gary A. Herbst, Jong-Ming Lin, Michael A. Moser, Matthew T. White
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Patent number: 7499243Abstract: A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk near the outer perimeter of the disk and close to the recording head. The support structure can be made of a metal or a high-strength plastic and can be a separate structure mounted to the housing, or integrated as part of the single-piece housing casting. If it is metallic, as would be the case if it were integrated with the housing, then layers of insulating material separate the sensors from the support structure. A support structure that serves other functions in the disk drive, such as a support for air dams that extend between the disks, can also function as the support structure for the capacitive sensors.Type: GrantFiled: August 7, 2007Date of Patent: March 3, 2009Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Toshiki Hirano, Tetsuo Semba, Matthew T. White
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Patent number: 7450339Abstract: A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk near the outer perimeter of the disk and close to the recording head. The support structure can be made of a metal or a high-strength plastic and can be a separate structure mounted to the housing, or integrated as part of the single-piece housing casting. If it is metallic, as would be the case if it were integrated with the housing, then layers of insulating material separate the sensors from the support structure. A support structure that serves other functions in the disk drive, such as support for disk damping plates, can also function as the support structure for the capacitive sensors.Type: GrantFiled: August 7, 2007Date of Patent: November 11, 2008Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Toshiki Hirano, Tetsuo Semba, Matthew T. White
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Patent number: 7450335Abstract: Methods and systems for reducing read/write head track misregistration are described. According to one embodiment, a first signal is received from a first capacitive sensor that faces a surface of a disk associated with a disk drive. A second signal is received from a second capacitive sensor that faces the surface of the disk. A determination is made as to whether the disk is being moved along its axis of rotation or whether the disk is tilting. Read/write head track misregistration is reduced based on the determination of whether the disk drive is being moved along an axis of rotation or whether the disk is tilting.Type: GrantFiled: August 9, 2006Date of Patent: November 11, 2008Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Toshiki Hirano, Tetsuo Semba, Matthew T. White
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Patent number: 7375916Abstract: A disk drive has multiple feedforward controllers for handling external disturbances, such as rotational vibration (RV), that have different external disturbance frequency spectra. Each feedforward controller is designed to be optimal for a canceling a specific associated RV spectrum. The actual RV spectrum acting on the disk drive is determined and the proper feedforward controller is then selected and used to generate a compensation signal for canceling the RV. Each feedforward controller may be tested when the disk drive is experiencing the RV, and the resulting compensation signal and PES measured. The feedforward controller that produces the best external disturbance cancellation is then selected as the feedforward controller. A signal from a RV sensor may be used to detect the peak frequency of the actual RV spectrum.Type: GrantFiled: March 17, 2006Date of Patent: May 20, 2008Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Tetsuo Semba, Matthew T. White, Kevin I. Tzou
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Patent number: 7345841Abstract: A magnetic recording disk drive has a disturbance sensor and a disturbance frequency identifier that are used to adjust the frequency of a peak filter as the disturbance frequency changes. The sensor and the frequency identifier are separate from the servo control loop and thus do not rely on the head position error signal (PES) to predict the disturbance frequency. The adjustable peak filter is coupled in parallel with the servo feedback controller. The peak filter modifies the open loop transfer function and the error rejection function of the servo control loop to provide a higher rejection at the identified frequency. The peak filter may be switched out of or uncoupled from the servo feedback controller during track-seeking or as desired, depending on the amplitude of the sensor signal or the amplitude of the PES.Type: GrantFiled: February 7, 2006Date of Patent: March 18, 2008Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Eric Gordon Baugh, Tetsuo Semba, Matthew T. White
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Publication number: 20080037155Abstract: Methods and systems for reducing read/write head track misregistration are described. According to one embodiment, a first signal is received from a first capacitive sensor that faces a surface of a disk associated with a disk drive. A second signal is received from a second capacitive sensor that faces the surface of the disk. A determination is made as to whether the disk is being moved along its axis of rotation or whether the disk is tilting. Read/write head track misregistration is reduced based on the determination of whether the disk drive is being moved along an axis of rotation or whether the disk is tilting.Type: ApplicationFiled: August 9, 2006Publication date: February 14, 2008Inventors: Toshiki Hirano, Tetsuo Semba, Matthew T. White
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Patent number: 7292407Abstract: A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk near the outer perimeter of the disk and close to the recording head. The support structure can be made of a metal or a high-strength plastic and can be a separate structure mounted to the housing, or integrated as part of the single-piece housing casting. If it is metallic, as would be the case if it were integrated with the housing, then layers of insulating material separate the sensors from the support structure. A support structure that serves other functions in the disk drive can also function as the support structure for the capacitive sensors.Type: GrantFiled: September 30, 2004Date of Patent: November 6, 2007Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Toshiki Hirano, Tetsuo Semba, Matthew T. White
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Patent number: 7277258Abstract: A dual-stage actuator disk drive has both a rotary primary actuator and a rotary secondary actuator. When the primary actuator initiates a seek there are two torque components acting on the center of mass of the secondary actuator's moving portion. The center of rotation of the moving portion is located at an optimal location relative to the center of mass of the moving portion, which results in cancellation of the two torque components and a secondary actuator that has essentially no resonant frequency in response to a seek by the primary actuator. If the optimal location can not be achieved because of assembly tolerances, then the center of rotation is placed at a distance at least as great as the assembly tolerance from the optimal location.Type: GrantFiled: June 21, 2005Date of Patent: October 2, 2007Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Toshiki Hirano, Fu-Ying Huang, Tetsuo Semba, Matthew T. White
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Patent number: 7177113Abstract: A magnetic recording disk drive with rotational vibration (RV) cancellation uses the position error signal (PES) and the signal from a RV sensor to determine when to enable and disable RV cancellation. An RV feedforward compensation signal to be summed with the VCM control signal is “switchable”, meaning that it can be enabled or disabled by the disk drive servo control processor. The determination to enable or disable is made from a comparison of the PES with a threshold PES, which may be an estimate of the off-track position of the head calculated from the RV sensor signal. The estimated off-track is compared to the absolute value of the actual or measured PES. If the estimated off-track is smaller than the actual PES, then the state of the RV cancellation is switched, i.e., if it is enabled it is disabled and if it is disabled it is enabled.Type: GrantFiled: August 3, 2005Date of Patent: February 13, 2007Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Tetsuo Semba, Matthew T. White, Kevin I. Tzou
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Patent number: 7106552Abstract: A method for secondary-actuator failure-detection and recovery in a dual-stage actuator disk drive includes running a calibration test by the servo control processor and measuring the position of the secondary actuator relative to its neutral position in response to the calibration test. The secondary-actuator failure detection and calibration test can be performed on a regular schedule or at selected times, such as at disk drive start-up. With the primary actuator biased at a test location, such as a crash stop or a load/unload ramp, the servo control processor generates a test signal to the secondary actuator and receives a relative-position signal (RPS) from the relative-position sensor in response to the test signal. The test comprises two measurements: a measurement of the secondary actuator static characteristics, and a measurement of the secondary actuator dynamic characteristics.Type: GrantFiled: February 3, 2005Date of Patent: September 12, 2006Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Toshiki Hirano, Matthew T. White, Satoshi Yamamoto
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Patent number: 7079339Abstract: A method for secondary-actuator failure-detection and recovery in a dual-stage actuator disk drive includes running a calibration test by the servo control processor and measuring the position of the secondary actuator relative to its neutral position in response to the calibration test. The secondary-actuator failure detection and calibration test can be performed on a regular schedule or at selected times, such as at disk drive start-up. With the primary actuator maintaining the read/write head on a data track in track-following mode, the servo control processor generates a test signal to the secondary actuator and receives a relative-position signal (RPS) from the relative-position sensor in response to the test signal. The test comprises two measurements: a measurement of the secondary actuator static characteristics, and a measurement of the secondary actuator dynamic characteristics.Type: GrantFiled: June 3, 2005Date of Patent: July 18, 2006Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Tetsuo Semba, Matthew T. White, Satoshi Yamamoto
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Patent number: 7079338Abstract: A method in a dual-stage actuator disk drive tests if the secondary actuator has failed while the disk drive is in its normal track-following operating mode. The secondary actuator is removed from the control loop and the primary actuator maintains the read/write head on a data track in the track-following mode. The servo control processor generates a test signal to the secondary actuator and receives the position error signal (PES) as the read head detects the PES bursts in the data track being followed. The servo control processor calculates the response of the secondary actuator to the test signal by deconvolving the motion of the primary actuator from the PES. The calculated response is then compared with an expected response to determine if the secondary actuator has failed. The coherence function can be calculated to measure the statistical validity of the calculated secondary-actuator frequency response.Type: GrantFiled: June 3, 2005Date of Patent: July 18, 2006Assignee: Hitachi Global StorageTechnologies Netherlands B.V.Inventors: Tetsuo Semba, Matthew T. White, Satoshi Yamamoto
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Patent number: 7075748Abstract: A dual-stage actuator disk drive has calibration tracks located in a nondata band, and uses a secondary-actuator failure detection and calibration test run by the servo control processor. The calibration tracks contain a pattern of pre-written magnetized test blocks. The test is run with the primary actuator biased against a crash stop, which enables the read head to access the calibration tracks. The servo control processor generates a test signal to the secondary actuator and receives a calibration signal from the read head as the read head detects the test blocks in the calibration tracks. The test comprises two measurements: a measurement of the secondary actuator static characteristics, and a measurement of the secondary actuator dynamic characteristics.Type: GrantFiled: November 24, 2004Date of Patent: July 11, 2006Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Matthew T. White, Satoshi Yamamoto