Patents by Inventor Daniel K. Van Ostrand
Daniel K. Van Ostrand 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: 10205343Abstract: A portable electrical energy power node is provided. The power node includes first and second input power terminals and first and second output power terminals. The input power terminals are adapted for receiving a source of electrical power and the output terminals are adopted for connecting to a load. A first power line connects the first input terminal to the first output terminal, a second power line connects the second input terminal to the input side of a circuit interrupter and a third power line connects the output side of the circuit interrupter to the second output terminal. The circuit interrupter selectively interrupts the connection between the second input terminal and the second output terminal in accordance with a fault sensor and a control unit.Type: GrantFiled: April 27, 2016Date of Patent: February 12, 2019Assignee: Unilectric, LLCInventors: Daniel K. Van Ostrand, Thomas L Peterson
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Patent number: 9669617Abstract: An anilox roll with low surface energy zone includes a cylinder having a curved contact surface, an ink transfer zone formed on a first portion of the curved contact surface, and a low surface energy zone formed on a second portion of the curved contact surface. The ink transfer zone includes a plurality of cells configured to transfer ink. The low surface energy zone includes a hydrophobic surface with a contact angle of at least 75 degrees and a surface roughness of less than 100 micrometers.Type: GrantFiled: October 18, 2016Date of Patent: June 6, 2017Assignee: EASTMAN KODAK COMPANYInventor: Daniel K. Van Ostrand
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Publication number: 20170036439Abstract: An anilox roll with low surface energy zone includes a cylinder having a curved contact surface, an ink transfer zone formed on a first portion of the curved contact surface, and a low surface energy zone formed on a second portion of the curved contact surface. The ink transfer zone includes a plurality of cells configured to transfer ink. The low surface energy zone includes a hydrophobic surface with a contact angle of at least 75 degrees and a surface roughness of less than 100 micrometers.Type: ApplicationFiled: October 18, 2016Publication date: February 9, 2017Inventor: Daniel K. Van Ostrand
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Publication number: 20170025892Abstract: A portable electrical energy power node is provided. The power node includes first and second input power terminals and first and second output power terminals. The input power terminals are adapted for receiving a source of electrical power and the output terminals are adopted for connecting to a load. A first power line connects the first input terminal to the first output terminal, a second power line connects the second input terminal to the input side of a circuit interrupter and a third power line connects the output side of the circuit interrupter to the second output terminal. The circuit interrupter selectively interrupts the connection between the second input terminal and the second output terminal in accordance with a fault sensor and a control unit.Type: ApplicationFiled: April 27, 2016Publication date: January 26, 2017Inventors: Daniel K. Van Ostrand, Thomas L. Peterson
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Patent number: 9075179Abstract: In at least some embodiments, a film for use with an edge-lit backlight includes a substrate. The film also includes a graphics layer and light-extraction features in contact with the substrate. The graphics layer and the light-extraction features are on opposite surfaces of the substrate.Type: GrantFiled: September 14, 2010Date of Patent: July 7, 2015Assignee: UNIPIXEL DISPLAYS, INC.Inventors: Robert J. Petcavich, Daniel K. Van Ostrand, Martin A. Kykta, Ying Zhou, Christopher B. Derichs
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Publication number: 20150029744Abstract: An apparatus for use on an edge-injected, total internal reflection (TIR) waveguide. The apparatus comprises a substrate and a plurality of microstructures provided on the substrate. Each microstructure comprises at least two approximately planar surfaces for extracting light from the TIR waveguide. The plurality of microstructures are pseudo-randomly oriented on the substrate. The apparatus may used in a lighting system (e.g., a backlight for a display).Type: ApplicationFiled: August 24, 2011Publication date: January 29, 2015Applicant: UNIPIXEL DISPLAYS, INC.Inventors: Daniel K. Van Ostrand, Ying Zhou, Martin A. Kykta
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Publication number: 20140375670Abstract: The optical performance is enhanced of display systems that use field sequential color and pulse width modulation to generate color and color gray scale values. Such enhancement may be achieved by various data encoding methods disclosed herein that may include temporal redistribution of bit values to mitigate color motional artifacts associated with field sequential color-based display systems, selective combination of intensity modulation, pulse width modulation, and/or the noncontiguous sequencing of primary colors. There is further an intelligent real-time dynamic manipulation of gray scale values in portions of an image that are computationally determined to be images of objects moving against a global background, so as to temporally front load or concentrate the bits comprising such moving objects and thereby further mitigate said motional artifacts using both actual and virtual aggregate pulse truncation across all primary colors being modulated.Type: ApplicationFiled: July 8, 2014Publication date: December 25, 2014Inventors: Daniel K. Van Ostrand, Carey King, Berry Tod Cox
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Publication number: 20140295063Abstract: Mutual capacitance touch sensor circuits are used in manufacturing displays, including touch screen displays, such as LED, LCD, plasma, 3D, and other displays used in computing as well as stationary and portable electronic devices. A flexographic printing process may be used, for example, in a roll to roll handling system to print geometric patterns on a substrate, for example, a flexible dielectric substrate. These patterns may then be coated with a conductive material by, for example, an electroless plating process.Type: ApplicationFiled: October 25, 2012Publication date: October 2, 2014Inventors: Robert J. Petcavich, Ed S. Ramakrishnan, Daniel K. Van Ostrand, Reed Killion, Kevin J. Derichs
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Publication number: 20140242294Abstract: Method of manufacturing a resistive touch sensor circuit using a roll to roll process to print microscopic patterns on a single side of at least one flexible dielectric substrate using a plurality of flexo-masters to print the microscopic patterns which are then plated to form conductive microscopic patterns.Type: ApplicationFiled: October 24, 2012Publication date: August 28, 2014Applicant: UNIPIXEL DISPLAYS, INC.Inventors: Robert J. Petcavich, Ed S. Ramakrishnan, Daniel K. Van Ostrand, Reed Killion, Kevin J. Derichs
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Patent number: 8795778Abstract: A method includes forming a master embossing roller to have a predetermined pattern, coating a flexible unpatterned substrate with a catalyst coating layer and forming a corresponding pattern in the coated substrate using the master embossing roller to thereby form a patterned substrate. The method may also include electrolessly plating the patterned substrate.Type: GrantFiled: October 12, 2012Date of Patent: August 5, 2014Assignee: Unipixel Displays, Inc.Inventors: Robert J. Petcavich, Ed S. Ramakrishnan, Daniel K. Van Ostrand
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Patent number: 8783931Abstract: The attenuation of light per unit length in a waveguide as a result of active pixels (i.e., open pixels) may be corrected or mitigated by injecting apodized light into the waveguide. A light injection system and method is provided to enhance the luminous uniformity of the active pixels in a waveguide-based display. Embodiments of the present invention include a slab waveguide having a first edge and a second edge that intersect at a vertex, a first light source disposed along the first edge, and a second light source disposed along the second edge. The first light source, or the second light source, or both, comprises an apodized light source.Type: GrantFiled: April 14, 2011Date of Patent: July 22, 2014Assignee: Rambus Delaware LLCInventors: Timothy A. McCollum, Fumitomo Hide, Martin G. Selbrede, Daniel K. Van Ostrand
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Patent number: 8773480Abstract: The optical performance is enhanced of display systems that use field sequential color and pulse width modulation to generate color and color gray scale values. Such enhancement may be achieved by various data encoding methods disclosed herein that may include temporal redistribution of bit values to mitigate color motional artifacts associated with field sequential color-based display systems, selective combination of intensity modulation, pulse width modulation, and/or the noncontiguous sequencing of primary colors. There is further an intelligent real-time dynamic manipulation of gray scale values in portions of an image that are computationally determined to be images of objects moving against a global background, so as to temporally front load or concentrate the bits comprising such moving objects and thereby further mitigate said motional artifacts using both actual and virtual aggregate pulse truncation across all primary colors being modulated.Type: GrantFiled: February 21, 2013Date of Patent: July 8, 2014Assignee: Rambus Delaware LLCInventors: Daniel K. Van Ostrand, Carey King, Berry Tod Cox
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Publication number: 20140050896Abstract: A method includes forming a master embossing roller to have a predetermined pattern, coating a flexible unpatterned substrate with a catalyst coating layer and forming a corresponding pattern in the coated substrate using the master embossing roller to thereby form a patterned substrate. The method may also include electrolessly plating the patterned substrate.Type: ApplicationFiled: October 12, 2012Publication date: February 20, 2014Applicant: UNIPIXEL DISPLAYS, INC.Inventors: Robert J. Petcavich, Ed S. Ramakrishnan, Daniel K. Van Ostrand
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Patent number: 8548289Abstract: Embodiments of a display comprising pixels formed from suitably tethered deformable membrane-based MEMS subsystems are provided that include the means to dynamically alter the in-plane tension, and thus the effective spring constant, of the deformable membrane being ponderomotively propelled between active and inactive optical states, said dynamic alteration being effected by exploiting transverse piezoelectric properties of the deformable membranes. Manipulating the spring constant can reduce the actuation force required to turn pixels on, thus significantly reducing the operational voltages for the display composed of an array of such subsystems. Since display power rises with the square of the pixel drive voltage, such architectures give rise to more power efficient display systems.Type: GrantFiled: December 12, 2008Date of Patent: October 1, 2013Assignee: Rambus Delaware LLCInventors: Martin G. Selbrede, Daniel K. Van Ostrand
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Interleaved lighting system for 2D-3D display having orthogonally arranged light extraction features
Patent number: 8534900Abstract: A light guide plate for a backlight comprises a light transmissive medium. The light transmissive medium preferably has two pairs of opposing sides and a top surface. Also provided is a plurality of interleaved regions of elongated light extraction features on the top surface of the light transmissive medium. Each light extraction figure is configured to extract light injected into the light guide plate and into a direction away from the top surface of the light guide plate. Each elongated light extraction feature has a long dimension and a short dimension. The light extraction features in a first set of the regions are arranged with their long dimension orthogonal to the long dimension of the light extraction features in a second set of the regions.Type: GrantFiled: March 25, 2011Date of Patent: September 17, 2013Assignee: Unipixel Displays, Inc.Inventors: Ying Zhou, Daniel K. Van Ostrand -
Publication number: 20130235273Abstract: The optical performance is enhanced of display systems that use field sequential color and pulse width modulation to generate color and color gray scale values. Such enhancement may be achieved by various data encoding methods disclosed herein that may include temporal redistribution of bit values to mitigate color motional artifacts associated with field sequential color-based display systems, selective combination of intensity modulation, pulse width modulation, and/or the noncontiguous sequencing of primary colors. There is further an intelligent real-time dynamic manipulation of gray scale values in portions of an image that are computationally determined to be images of objects moving against a global background, so as to temporally front load or concentrate the bits comprising such moving objects and thereby further mitigate said motional artifacts using both actual and virtual aggregate pulse truncation across all primary colors being modulated.Type: ApplicationFiled: February 21, 2013Publication date: September 12, 2013Applicant: Rambus Delaware LLCInventors: Daniel K. Van Ostrand, Carey King, Berry Tod Cox
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Patent number: 8405691Abstract: The optical performance is enhanced of display systems that use field sequential color and pulse width modulation to generate color and color gray scale values. Such enhancement may be achieved by various data encoding methods disclosed herein that may include temporal redistribution of bit values to mitigate color motional artifacts associated with field sequential color-based display systems, selective combination of intensity modulation, pulse width modulation, and/or the noncontiguous sequencing of primary colors. There is further an intelligent real-time dynamic manipulation of gray scale values in portions of an image that are computationally determined to be images of objects moving against a global background, so as to temporally front load or concentrate the bits comprising such moving objects and thereby further mitigate said motional artifacts using both actual and virtual aggregate pulse truncation across all primary colors being modulated.Type: GrantFiled: September 22, 2009Date of Patent: March 26, 2013Assignee: Rambus Inc.Inventors: Daniel K. Van Ostrand, Carey King, Berry Tod Cox
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Patent number: 8380026Abstract: The application of optical microstructures improve the quality of light available to the viewer of an optical display system, or any display which works on the concept of moving one surface into direct contact or close proximity of a light guide to extract light through frustrated total internal reflection. Certain ones of the microstructures can act to assist in overcoming stiction between the surface and the light guide.Type: GrantFiled: January 13, 2009Date of Patent: February 19, 2013Assignee: Rambus Inc.Inventors: Daniel K. Van Ostrand, Carey King, Garth Gobeli
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Patent number: 8320036Abstract: The present invention provides an apparatus that includes a waveguide and one or more pixels deployed adjacent the top surface of the waveguide which contains TIR light therein. Each pixel includes a deformable active layer having a first conductor and a driver electronics layer having a second conductor. The driver electronics layer is deployed in spaced-apart relation to the active layer and opposite the waveguide. In a quiescent state of a pixel, the active layer is in contact or near contact with the top surface of the waveguide so as to optically couple light out via FTIR (i.e., pixel's ON state). To actuate the pixel, the electronics layer is configured to selectively apply an electrical potential difference to the second conductor thereby causing the active layer to move away from the top surface so as to prevent the optical coupling of light out of the waveguide (i.e., pixel's OFF state).Type: GrantFiled: August 24, 2009Date of Patent: November 27, 2012Assignee: Rambus Inc.Inventors: Kevin J. Derichs, Carey King, Daniel K. Van Ostrand, Berry Tod Cox, Reed J. Killion
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Publication number: 20120275026Abstract: Specular and diffuse reflection and fingerprints are reduced associated with a display are reduced through the use of any or all of an anti-reflection (AR) coating, a self-assembled monolayer (SAM) coating, and micro-structures to selectively deflect or diffract the incident light.Type: ApplicationFiled: April 29, 2011Publication date: November 1, 2012Applicant: UNIPIXEL DISPLAYS, INC.Inventors: Ying Zhou, Neerja Saran, Martin A. Kykta, Daniel K. Van Ostrand, Ed S. Ramakrishnan, Robert J. Petcavich