Patents by Inventor David W. Richard
David W. Richard 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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Patent number: 9384416Abstract: The present invention includes an automated method for grading the blurring of ocular fundus images to permit automated grading of severity of vitritis. Standard fundoscopic images are converted to gray-scale images. The gray-scale images are processed through a low-pass filter to eliminate high frequency components. The low pass image is subtracted from the corresponding original image, producing the difference image. The difference image is converted to the final entropy image. The entropy image is processed using Fast Fourier Transform to calculate its power. The final blur score is calculated.Type: GrantFiled: February 20, 2015Date of Patent: July 5, 2016Assignee: University of South FloridaInventors: Christopher L. Passaglia, Brian Madow, David W. Richards, Erin L. Greenberg
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Patent number: 8286029Abstract: In some embodiments, storage devices, such as a storage drive or a storage node, in an array of storage devices may be reintroduced into the array of storage devices after a period of temporary unavailability without fully rebuilding the entire previously unavailable storage device.Type: GrantFiled: December 21, 2006Date of Patent: October 9, 2012Assignee: EMC CorporationInventors: Robert J. Anderson, Neal T. Fachan, Peter J. Godman, Justin M. Husted, Aaron J. Passey, David W. Richards, Darren P. Schack
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Patent number: 8010493Abstract: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. In one embodiment, the metadata comprises mini-snapshots for directories representing a path from the root of the file system to the root of the snapshot. The mini-snapshots serve as stand-ins for portions of the file system which are not included in the snapshot, but which permit access to the snapshot data in an intuitive way.Type: GrantFiled: March 4, 2010Date of Patent: August 30, 2011Assignee: EMC CorporationInventors: Robert J. Anderson, Neal T. Fachan, Eric M. Lemar, Aaron J. Passey, David W. Richards, Darren P. Schack
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Patent number: 7953704Abstract: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. According to one embodiment, the system stores and updates metadata, including a governance list, for each of the files and directories. The governance list provides a representation of the snapshots which govern a file or directory and its descendants.Type: GrantFiled: August 18, 2006Date of Patent: May 31, 2011Assignee: EMC CorporationInventors: Robert J. Anderson, Neal T. Fachan, Eric M. Lemar, Aaron J. Passey, David W. Richards, Darren P. Schack
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Publication number: 20100161556Abstract: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. In one embodiment, the metadata comprises mini-snapshots for directories representing a path from the root of the file system to the root of the snapshot. The mini-snapshots serve as stand-ins for portions of the file system which are not included in the snapshot, but which permit access to the snapshot data in an intuitive way.Type: ApplicationFiled: March 4, 2010Publication date: June 24, 2010Inventors: Robert J. Anderson, Neal T. Fachan, Eric M. Lemar, Aaron J. Passey, David W. Richards, Darren P. Schack
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Patent number: 7680842Abstract: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. In one embodiment, the metadata comprises mini-snapshots for directories representing a path from the root of the file system to the root of the snapshot. The mini-snapshots serve as stand-ins for portions of the file system which are not included in the snapshot, but which permit access to the snapshot data in an intuitive way.Type: GrantFiled: August 18, 2006Date of Patent: March 16, 2010Assignee: Isilon Systems, Inc.Inventors: Robert J. Anderson, Neal T. Fachan, Eric M. Lemar, Aaron J. Passey, David W. Richards, Darren P. Schack
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Patent number: 7402241Abstract: A water purification device including a water inlet that receives water generated by a condenser. The water purification device has a water heating apparatus that receives water from the water inlet. The water heating device has a thermal energy source that can pasteurize or flash pasteurize the water by heating the water to a predetermined temperature for a predetermined length of time. The water heating device expels the water at the end of the predetermined length of time.Type: GrantFiled: December 29, 2005Date of Patent: July 22, 2008Assignee: Aquamagic, Inc.Inventors: Jonathan P. Wright, David W. Richards, Brent L. Cannell
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Publication number: 20080151724Abstract: In some embodiments, storage devices, such as a storage drive or a storage node, in an array of storage devices may be reintroduced into the array of storage devices after a period of temporary unavailability without fully rebuilding the entire previously unavailable storage device.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Inventors: Robert J. Anderson, Neal T. Fachan, Peter J. Godman, Justin M. Husted, Aaron J. Passey, David W. Richards, Darren P. Schack
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Publication number: 20080155191Abstract: Embodiments of the present invention provide systems and methods for using heterogeneous containers where the available space on the containers is of two or more different sizes. In some embodiments, the heterogeneous containers may store some data under one protection scheme and other data under one or more other data protection schemes.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Inventors: Robert J. Anderson, Nate E. Dire, Neal T. Fachan, Peter J. Godman, Aaron J. Passey, David W. Richards, Darren P. Schack
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Publication number: 20080046475Abstract: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories.Type: ApplicationFiled: August 18, 2006Publication date: February 21, 2008Inventors: Robert J. Anderson, Neal T. Fachan, Eric M. Lemar, Aaron J. Passey, David W. Richards, Darren P. Schack
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Publication number: 20080046432Abstract: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories.Type: ApplicationFiled: August 18, 2006Publication date: February 21, 2008Inventors: Robert J. Anderson, Neal T. Fachan, Eric M. Lemar, Aaron J. Passey, David W. Richards, Darren P. Schack
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Patent number: 6709109Abstract: The present invention includes a method of detecting nerve cell damage representative of glaucoma including the steps of: imaging a human retina in vivo, measuring the reflected light intensity at a first predetermined wavelength wherein values returned from healthy and damaged areas of retina are substantially identical, measuring a second reflected light intensity at a predetermined wavelength wherein values of healthy and damaged retina substantially diverge, and recording the differences between the first and second values, which values are indicative of glaucoma damage.Type: GrantFiled: April 16, 2003Date of Patent: March 23, 2004Assignee: University of South FloridaInventors: David W. Richards, Dennis K. Killinger, Anali Makoui, Wyatt Saxon
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Patent number: 6553639Abstract: A method of manufacturing a leaf seal for use between rotating components comprises forming corrugations within a metallic strip and feeding the corrugated strip into a seal guide. The corrugated strip is then pressed into the guide by an angled ram such that the corrugations lie at an acute angle to the perpendicular axis. The strip is then secured in a seal carrier, the free ends of the corrugations thus forming the angled sealing leaves of a leaf seal.Type: GrantFiled: July 18, 2001Date of Patent: April 29, 2003Assignee: Rolls-Royce, plcInventors: John Hobbs, David W Richards
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Patent number: 6387474Abstract: An external top coating on a toy vehicle provides a multi-color or hue variation dependent upon the angle at which illuminating rays or energy strike the coating. The coating is applied directly over previously applied color coating and application may be by spray, brush or airbrush. The external coating is characterized as combining a plurality of pigments into a carrying medium which is then applied to the exposed surface of a previously coated toy vehicle. The multi-pigmented coating includes a thin transparence or glaze of protective material so that the multi-hue or colored layer is not readily scratched or marred. A feature resides in that the multi-pigmented or hued coating is sufficiently transparent or translucent in order to provide design ornamentation applied with the conventional pre-coating to be seen therethrough.Type: GrantFiled: August 23, 1999Date of Patent: May 14, 2002Inventor: David W. Richards
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Publication number: 20020014009Abstract: A method of manufacturing a leaf seal for use between rotating components comprises forming corrugations within a metallic strip and feeding the corrugated strip into a seal guide. The corrugated strip is then pressed into the guide by an angled ram such that the corrugations lie at an acute angle to the perpendicular axis. The strip is then secured in a seal carrier, the free ends of the corrugations thus forming the angled sealing leaves of a leaf seal.Type: ApplicationFiled: July 18, 2001Publication date: February 7, 2002Applicant: ROLLS-ROYCE PLCInventors: John Hobbs, David W. Richards
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Patent number: 5596486Abstract: An improved PC Card element, particularly a PC card unit, is presented in which the unit is hermetically sealed. The unit has a metallic frame, a metallic header with glass or ceramic encapsulated through pins, and opposed outer metallic covers, all of the metallic elements being welded together to form a hermetically sealed unit. The metallic frame and header is preferably formed as a single piece, i.e., unitary part, either by casting and machining or by metal injection molding.Type: GrantFiled: October 5, 1994Date of Patent: January 21, 1997Assignee: Kaman Aerospace CorporationInventors: Paul R. Young, David W. Richard, Leonard Bazar
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Patent number: 5024518Abstract: An instrument and method for examining the optic nerve head (34) of a patient's eye (14) is disclosed. The instrument is comprised of a gonioscopic lens (10) a lens system (26) where the lens system (26) directs a collimated beam of light towards a point (32) away from the center line (28) through the gonioscopic lens (10) and eye (14). When the patient fixates on the beam of light (32), the ophthalmologist can examine the optic nerve head (34) through the gonioscopic lens (10).Type: GrantFiled: March 22, 1990Date of Patent: June 18, 1991Assignees: Center for Innovative Technology, Virginia Commonwealth University, Virginia Polytechnic Institute and State UniversityInventors: David W. Richards, Kent A. Murphy
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Patent number: 4965686Abstract: A disc drive assembly for a magnetic disc memory unit is presented. The disc drive assembly has a stationary spindle to which a motor stator assembly is fastened by a wedge ring structure. The motor rotor assembly is constituted by a rotary hub mounted around the stator, the hub having a motor magnet mounted therein. A plurality of magnetic discs may be mounted on the exterior of the hub.Type: GrantFiled: March 31, 1989Date of Patent: October 23, 1990Assignee: Raymond Engineering Inc.Inventors: Paul R. Young, David W. Richard, Arthur J. Treff, Christopher E. Staehly
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Patent number: 4870703Abstract: A magnetic disc memory unit is presented wherein a pair of read/write heads are on a pivot arm which is belt driven by a stepper motor. The read/write heads move in an arc, and they retract to a landing position fully off the disc when the unit is shut down. The unit incorporates several features to overcome or minimize vibration and temperature problems so that the unit is suitable for operation in extreme vibration and temperature environments and in all attitudes. These features include, but are not limited to, a rotary table and a rotary mounted spindle made from different materials and joined by a cryogenic joint; pre-loaded elastomeric "O" rings; an electrically conductive ball used for grounding the disc support to the housing; and a single continuous split belt connected between the output of the stepper motor and the pivot arm.Type: GrantFiled: October 12, 1988Date of Patent: September 26, 1989Assignee: Raymond Engineering Inc.Inventors: James A. Augeri, Paul R. Young, David W. Richard, David Johnson
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Patent number: 3955723Abstract: An ignition spark advance system is disclosed which includes pulse generating means responsive to rotation of the shaft of an internal combustion engine for generating a first train of pulses including a first reference pulse and a plurality of additional pulses and a second train of pulses indicative of the angular position of the shaft of the engine. Timing means are provided for measuring the passage of a predetermined fixed time period after the occurrence of the first reference pulse in the first train of pulses.Type: GrantFiled: November 29, 1974Date of Patent: May 11, 1976Assignee: Teledyne Industries, Inc.Inventor: David W. Richards