Patents by Inventor Gordon R. Knight
Gordon R. Knight 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: 20040202055Abstract: This application describes structures of storage media for optical storage systems, including systems in the near-field configuration to couple radiation between the optical head and the media at least in part by evanescent fields. Disk cartridges for various optical disk drives are also described.Type: ApplicationFiled: April 12, 2004Publication date: October 14, 2004Applicant: Terastor Corporation, a California CorporationInventors: Gordon R. Knight, John Al-Samrrie, David Blankenbeckler, Brian Bonn, Alan Burroughs, Warren Dalziel, Roger Hajjar, Amit Jain, Guolin Ma, Brian Tremaine
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Patent number: 6724694Abstract: Structures of storage media for optical storage systems, especially for systems in the near-field configuration to couple radiation between the optical head and the media at least in part by evanescent fields.Type: GrantFiled: June 14, 2002Date of Patent: April 20, 2004Assignee: TeraStor CorporationInventors: Gordon R. Knight, John Al-Samarrie, David Blankenbeckler, Brian Bonn, Alan Burroughs, Warren Dalziel, Roger Hajjar, Amit Jain, Guolin Ma, Brian P. Tremaine
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Patent number: 6582630Abstract: Several embodiments of a method for manufacturing an optical assembly for use in an optical flying head are provided. The optical assembly may include a solid immersion lens and a magnetic coil. Techniques are provided for fabricating the solid immersion lens and the magnetic coil. Techniques are also provided for installing the optical assembly into a slider for the optical flying head. Other embodiments are described in which a solid immersion lens is installed in or is integral with a transparent slider. A magnetic coil may also be installed in these embodiments.Type: GrantFiled: March 28, 2001Date of Patent: June 24, 2003Inventors: Amit Jain, Gordon R. Knight, James M. McCoy, Allan Schwartz, Arnie O. Thornton
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Publication number: 20030035361Abstract: Structures of storage media for optical storage systems, especially for systems in the near-field configuration to couple radiation between the optical head and the media at least in part by evanescent fields. Manufacturing methods are also disclosed.Type: ApplicationFiled: June 14, 2002Publication date: February 20, 2003Applicant: Terastor CorporationInventors: Gordon R. Knight, John Al-Samarrie, David Blankenbeckler, Brian Bonn, Alan Burroughs, Warren Dalziel, Roger Hajjar, Amit Jain, Guolin Ma, Brian P. Tremaine
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Patent number: 6449221Abstract: Magneto-optical storage media designed for optical storage systems such as disk drives with optical flying heads. Dielectric layers are designed and implemented to maximize optical coupling between the flying optical head and the media and to reduce variations of signals with flight height of the flying optical head.Type: GrantFiled: February 9, 2000Date of Patent: September 10, 2002Assignee: Terastor CorporationInventors: Gordon R. Knight, John Al-Samarrie, David Blankenbeckler, Brian Bonn, Alan Burroughs, Warren Dalziel, Roger Hajjar, Amit Jain, Guolin Ma, Brian Tremaine
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Publication number: 20020011298Abstract: Several embodiments of a method for manufacturing an optical assembly for use in an optical flying head are provided. The optical assembly may include a solid immersion lens and a magnetic coil. Techniques are provided for fabricating the solid immersion lens and the magnetic coil. Techniques are also provided for installing the optical assembly into a slider for the optical flying head. Other embodiments are described in which a solid immersion lens is installed in or is integral with a transparent slider. A magnetic coil may also be installed in these embodiments.Type: ApplicationFiled: March 28, 2001Publication date: January 31, 2002Applicant: TeraStor CorporationInventors: Amit Jain, Gordon R. Knight, James M. McCoy, Allan Schwartz, Arnie O. Thornton
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Patent number: 6270696Abstract: Several embodiments of a method for manufacturing an optical assembly for use in an optical flying head are provided. The optical assembly may include a solid immersion lens and a magnetic coil. Techniques are provided for fabricating the solid immersion lens and the magnetic coil. Techniques are also provided for installing the optical assembly into a slider for the optical flying head. Other embodiments are described in which a solid immersion lens is installed in or is integral with a transparent slider. A magnetic coil may also be installed in these embodiments.Type: GrantFiled: June 3, 1996Date of Patent: August 7, 2001Assignee: Terastor CorporationInventors: Amit Jain, Gordon R. Knight, James M. McCoy, Allan Schwartz, Arnie O. Thornton
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Patent number: 6243350Abstract: Optical storage systems based on air-bearing-suspended optical heads in a near-field configuration. Such a system comprises an optical head for reading and writing data and a head positioning system, an optics module including beam relay optics and signal detectors, and a medium holding and loading module to hold an optical medium. An electronic control system is also provided to control the system operation. The optical head includes a near-field lens with a high index of refraction and in a near-field configuration in which the near-field lens has a numerical aperture greater than unity when the spacing between an exit facet of the optical head and a recording layer in the optical medium is a fraction of one wavelength of optical beam.Type: GrantFiled: April 29, 1997Date of Patent: June 5, 2001Assignee: TeraStor CorporationInventors: Gordon R. Knight, John Al-Samarrie, David Blankenbeckler, Brian Bonn, Alan Burroughs, Warren Dalziel, Roger Hajjar, Amit Jain, Guolin Ma, Brian Tremaine
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Patent number: 6061322Abstract: A system for reading or writing data from or to a bilevel optical recording medium with a flying head. The system includes a head having a slider and a solid immersion lens mounted at least partially within the slider. The solid immersion lens has a partial spherical surface and a substantially flat surface. The head also has an objective lens mounted to the slider. The system also includes a multilevel recording medium. The medium has a first media layer and a first substrate layer adjacent to the first media layer. The medium also has at least one second media layer adjacent the side of the first substrate layer opposite from the first media layer, and a second substrate layer adjacent the side of the second media layer opposite from the first substrate layer. The total effective numerical aperture of the system is greater than one for all layers.Type: GrantFiled: February 25, 1999Date of Patent: May 9, 2000Assignee: TeraStor CorporationInventors: Amit Jain, Gordon R. Knight
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Patent number: 6055222Abstract: A head for a disk drive for reading data from and/or writing data to an optical recording medium, having a slider with a channel surface and an air-bearing surface, an optical clear path through the slider, a solid immersion lens mounted at least partially within the slider, and an objective lens mounted to the slider, such that the distances between the air-bearing surface, the objective, and the solid immersion lens are substantially constant.Type: GrantFiled: March 9, 1999Date of Patent: April 25, 2000Assignee: TeraStor CorporationInventor: Gordon R. Knight
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Patent number: 5936928Abstract: A system for reading or writing data from or to a bilevel optical recording medium with a flying head. The system includes a head having a slider and a solid immersion lens mounted at least partially within the slider. The solid immersion lens has a partial spherical surface and a substantially flat surface. The head also has an objective lens mounted to the slider. The system also includes a multilevel recording medium. The medium has a first media layer and a first substrate layer adjacent to the first media layer. The medium also has at least one second media layer adjacent the side of the first substrate layer opposite from the first media layer, and a second substrate layer adjacent the side of the second media layer opposite from the first substrate layer. The total effective numerical aperture of the system is greater than one for all layers.Type: GrantFiled: October 1, 1996Date of Patent: August 10, 1999Assignee: TeraStor CorporationInventors: Amit Jain, Gordon R. Knight
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Patent number: 5881042Abstract: A head for a disk drive for reading data from and/or writing data to an optical recording medium, having a slider with a channel surface and an air-bearing surface, an optical clear path through the slider, a solid immersion lens mounted at least partially within the slider, and an objective lens mounted to the slider, such that the distances between the air-bearing surface, the objective, and the solid immersion lens are substantially constant.Type: GrantFiled: September 10, 1997Date of Patent: March 9, 1999Assignee: Terastor CorporationInventor: Gordon R. Knight
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Patent number: 5793584Abstract: A disk cartridge assembly includes an enclosure, a recording disk mounted for rotation in the enclosure, and an electrostatic cleaning element positioned on an interior surface of the enclosure. The cleaning element engages one side of the disk at least when the disk is at rest and when the disk is rotated at a low speed, and the cleaning element is charged to a high voltage.Type: GrantFiled: December 13, 1996Date of Patent: August 11, 1998Assignee: TeraStor CorporationInventors: Gordon R. Knight, Amit Jain, Brian Bonn
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Patent number: 4290122Abstract: Periodic clock pulses are pre-recorded on each servo track of an optical disk to provide a local self-synchronizing source of clock frequency information for read only or direct read after write optical digital disk memories. In keeping with accepted practices, the servo track or tracks additionally function as references for controlling the radial positioning of a read head or a read/write head of such a memory.Type: GrantFiled: May 14, 1979Date of Patent: September 15, 1981Assignee: Xerox CorporationInventors: Roger D. Bates, Gordon R. Knight
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Patent number: 4283777Abstract: The output beam of a read laser for an optical memory is diffracted to provide a plurality of read beams of substantially equal intensity for simultaneously scanning all of the data tracks of a selected data channel with a different one of the read beams, whereby each of the read beams is optically modulated in accordance with the data recorded on a respective one of the data tracks. The optically modulated read beams are applied to respective detectors, whereby the data recorded on the different data tracks is simultaneously converted into corresponding video electrical signals. Those signals are, in turn, output selectively or in parallel.Type: GrantFiled: May 14, 1979Date of Patent: August 11, 1981Assignee: Xerox CorporationInventors: Donald J. Curry, Gordon R. Knight, Daniel C. Kowalski