Patents by Inventor Robert N. Stark
Robert N. Stark 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: 20210210927Abstract: A method and apparatus to drive a laser diode are disclosed comprising increasing a bias current to the laser diode to a threshold level, wherein the threshold level is below an actuation level of the laser diode and wherein a resistor is placed in parallel to the laser diode, charging a capacitance to a precharge capacitance of a circuit including the laser diode, wherein the precharge capacitance is below a capacitance actuation level of the laser diode; and actuating the laser diode.Type: ApplicationFiled: March 8, 2021Publication date: July 8, 2021Applicant: Prysm Systems, Inc.Inventor: Robert N. STARK
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Patent number: 10944239Abstract: A method and apparatus to drive a laser diode are disclosed comprising increasing a bias current to the laser diode to a threshold level, wherein the threshold level is below an actuation level of the laser diode and wherein a resistor is placed in parallel to the laser diode, charging a capacitance to a precharge capacitance of a circuit including the laser diode, wherein the precharge capacitance is below a capacitance actuation level of the laser diode; and actuating the laser diode.Type: GrantFiled: July 31, 2019Date of Patent: March 9, 2021Assignee: Prysm Systems, Inc.Inventor: Robert N. Stark
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Publication number: 20200044413Abstract: A method and apparatus to drive a laser diode are disclosed comprising increasing a bias current to the laser diode to a threshold level, wherein the threshold level is below an actuation level of the laser diode and wherein a resistor is placed in parallel to the laser diode, charging a capacitance to a precharge capacitance of a circuit including the laser diode, wherein the precharge capacitance is below a capacitance actuation level of the laser diode; and actuating the laser diode.Type: ApplicationFiled: July 31, 2019Publication date: February 6, 2020Inventor: Robert N. STARK
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Publication number: 20130003521Abstract: An arrangement, a method and a system to read information stored in a layer of ferroelectric media.Type: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: INTEL CORPORATIONInventors: Quan Anh Tran, Byong M. Kim, Robert N. Stark, Nathan R. Franklin, Qing Ma, Valluri Rao, Donald E. Adams, Li-Peng Wang, Yevgeny V. Anoikin
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Patent number: 8264941Abstract: An arrangement, a method and a system to read information stored in a layer of ferroelectric media. The arrangement includes a layer including a ferroelectric media having one or more ferroelectric domains holding bit charges, a domain corresponding to information; a probe having a tip, wherein the media and the tip are adapted to move relative to one another such that the tip scans the ferroelectric domains of the media while applying a contact force to the domains to generate a direct piezoelectric effect within the domains; and circuitry coupled to the tip and adapted to generate a signal in response to an electrical coupling between the tip and the domains while scanning the tip in contact with the domains, the signal corresponding to a readout signal for ferroelectric bit charges stored in the media.Type: GrantFiled: December 26, 2007Date of Patent: September 11, 2012Assignee: Intel CorporationInventors: Quan Anh Tran, Byong M. Kim, Robert N. Stark, Nathan R. Franklin, Qing Ma, Valluri Rao, Donald E. Adams, Li-Peng Wang, Yevgeny V. Anoikin
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Publication number: 20100100991Abstract: A device to detect polarization of a ferroelectric material comprises a probe tip, a charge amplifier electrically connected with the probe tip to convert a charge coupled to the probe tip from the ferroelectric material into an output voltage. The ferroelectric material is oscillated at a reference signal so that a charge is coupled to the probe tip and converted to an output voltage by the charge amplifier. A lock-in amplifier that receives the reference voltage and applies the reference voltage to the output voltage to extract a signal output representing the polarization.Type: ApplicationFiled: October 20, 2008Publication date: April 22, 2010Applicant: NANOCHIP, INC.Inventors: Byong M. Kim, Robert N. Stark, Quan Tran, Wade Hassler, Qing Ma, Donald E. Adams, Yevgeny V. Anoikin
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Publication number: 20090201015Abstract: An information storage device comprises a ferroelectric media and a cantilever including a tip extending from the cantilever toward the ferroelectric media, and a capacitive sensor formed over the cantilever. The tip applies a probe voltage to the ferroelectric media and the capacitive sensor vibrates according to a response of the ferroelectric media to the probe voltage. Circuitry determines a polarization of the ferroelectric media based on the vibration of the capacitive sensor.Type: ApplicationFiled: February 12, 2008Publication date: August 13, 2009Applicant: NANOCHIP, INC.Inventors: Donald Edward Adams, Tsung-Kuan Allen Chou, Robert N. Stark
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Publication number: 20090168637Abstract: An arrangement, a method and a system to read information stored in a layer of ferroelectric media.Type: ApplicationFiled: December 26, 2007Publication date: July 2, 2009Inventors: Quan Anh Tran, Byong M. Kim, Robert N. Stark, Nathan R. Franklin, Qing Ma, Valluri Rao, Donald E. Adams, Li-Peng Wang, Yevgeny V. Anoikin
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Publication number: 20080318086Abstract: A system for storing information comprises a media including a ferroelectric layer and a passivation layer formed over the ferroelectric layer, and a tip arranged in approximate contact with the passivation layer. The tip detects a polarization signal that corresponds to changes in polarization of domains of the ferroelectric layer.Type: ApplicationFiled: June 19, 2007Publication date: December 25, 2008Applicant: NANOCHIP, INC.Inventors: Byong Man Kim, Donald Edward Adams, Brett Eldon Huff, Yevgeny V. Anoikin, Robert N. Stark
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Publication number: 20080316897Abstract: A method of forming a passivation layer over a ferroelectric layer of a ferroelectric media comprises introducing the ferroelectric layer to a plasma comprising one of oxygen, oxygen-helium, and oxygen-nitrogen-helium, etching a surface of the ferroelectric layer, forming one of a substantially oxygen enriched layer and a substantially hydroxyl enriched layer at the surface of the ferroelectric layer, introducing the ferroelectric layer to an environment comprising substantially nitrogen, and maintaining the ferroelectric layer within the environment so that nitrogen enriches the substantially oxygen enriched layer to form a passivation layer.Type: ApplicationFiled: June 19, 2007Publication date: December 25, 2008Applicant: NANOCHIP, INC.Inventors: Byong Man KIM, Donald Edward ADAMS, Brett Eldon HUFF, Yevgeny V. ANOIKIN, Robert N. STARK
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Publication number: 20080232228Abstract: A system for storing information comprises a media including a ferroelectric layer, a tip arrangeable in electrically communicative proximity to the media, and circuitry to detect a polarization signal having a radio frequency. The polarization signal corresponds to changes in polarization of domains of the ferroelectric layer at a relative velocity of movement between the tip and the media, wherein a domain of polarization of the ferroelectric layer is information.Type: ApplicationFiled: March 20, 2007Publication date: September 25, 2008Applicant: NANOCHIP, INC.Inventors: Donald Edward Adams, Robert N. Stark
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Patent number: 7414953Abstract: A data storage device comprises a media including a memory layer within which are formable domains associated with information, and a conductive layer disposed over the memory layer, the conductive layer having anisotropically increased electrical conductivity in a thickness direction. A conductive tip contactable with the conductive layer is adapted to form domains within the memory layer and one of the conductive tip and the media is movable to access the memory layer.Type: GrantFiled: April 5, 2007Date of Patent: August 19, 2008Assignee: Nanochip, Inc.Inventors: Thomas F. Rust, Robert N. Stark, Thomas L. Noggle, Daniel F. Cribbs
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Patent number: 7379412Abstract: Methods in accordance with the present invention can be applied, in an embodiment, to a media comprising a phase change material to alter a resolved portion of the phase change material to have a resistance different from a resistance of the bulk material. A tip having a substantially larger radius of curvature than the resolved portion can be employed by applying such methods. A substantially anisotropic columnar material can focus a current applied between the tip and the media so that the portion is narrower in width than the radius of curvature. Such highly resolved portions form bits in the media. Other objects, aspects and advantages of the invention can be obtained from reviewing the figures, specification and claims. This description is not intended to be a complete description of, or limit the scope of, the invention.Type: GrantFiled: December 3, 2004Date of Patent: May 27, 2008Assignee: Nanochip, Inc.Inventors: Thomas F. Rust, Robert N. Stark, Thomas L. Noggle, Daniel F. Cribbs
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Patent number: 7301887Abstract: Methods in accordance with the present invention can be applied, in an embodiment, to a media comprising a phase change material to alter a resolved portion of the phase change material to have a resistance different from a resistance of the bulk material. A tip having a substantially larger radius of curvature than the resolved portion can be employed by applying such methods. A substantially anisotropic columnar material can focus a current applied between the tip and the media so that the portion is narrower in width than the radius of curvature. Such highly resolved portions form bits in the media. Other objects, aspects and advantages of the invention can be obtained from reviewing the figures, specification and claims. This description is not intended to be a complete description of, or limit the scope of, the invention.Type: GrantFiled: December 3, 2004Date of Patent: November 27, 2007Assignee: Nanochip, Inc.Inventors: Thomas F. Rust, Robert N. Stark, Thomas L. Noggle, Daniel F. Cribbs
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Patent number: 4972344Abstract: Disclosed is an optical turntable system for optically playing phonograph records having a recorded signal in a groove formed by a wall having a position modulated by the recorded signal. An optical unit includes an optical source providing a first light beam incident onto the wall to provide a reflected beam from the wall forming a reflected spot at a reflected position proportional to the recorded signal and also includes an optical sensor for sensing the reflected position of the reflected spot to provide an output data signal proportional to the recorded signal. The optical unit also includes a tracking assembly which functions to position the optical unit over the section of the groove of interest as the record turns.Type: GrantFiled: November 4, 1988Date of Patent: November 20, 1990Assignee: Finial Technology, Inc.Inventors: Robert E. Stoddard, Robert N. Stark