Search Patents
  • CORRECTION OF SHARP-EDGE ARTIFACTS IN DIFFERENTIAL PHASE CONTRAST CT IMAGES AND ITS IMPROVEMENT IN AUTOMATIC MATERIAL IDENTIFICATION
    Publication number: 20200027254
    Abstract: A method for correcting image data from a differential phase contrast imaging system is provided. Data comprising distorted data due to spatial variation is obtained. The data is corrected by correcting the distorted data.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Inventors: Ching-wei CHANG, Lambertus HESSELINK
  • EYE-GLASSES MOUNTED DISPLAY
    Publication number: 20130009853
    Abstract: A display system is provided. An eye-glass is provided. A projector is provided comprising a display device and an optical system for directing an image from the display device to reflect off of the eye-glass and into an eye. The eye-glass and projector may be supported by a frame, which is able to be mounted on a head.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Lambertus Hesselink, Yuzuru Takashima
  • Enhanced photoelectron sources using electron bombardment
    Publication number: 20140265828
    Abstract: A method of achieving heightened quantum efficiencies and extended photocathode lifetimes is provided that includes using an electron beam bombardment to activate color centers in a CsBr film of a photocathode, and using a laser source for pumping electrons in the color centers of the photocathode.
    Type: Application
    Filed: February 26, 2014
    Publication date: September 18, 2014
    Inventors: Juan R. Maldonado, Yao-Te Cheng, Piero Pianetta, R. Fabian W. Pease, Lambertus Hesselink
  • Home energy systems
    Publication number: 20120169065
    Abstract: An energy system is provided that includes an engine disposed to produce electricity, a fuel storage disposed to hold fuel for use by the engine, a battery disposed to store the electricity produced by the engine, an electrical grid having electrical connectivity of a charging station from the engine or the battery, and an electrical grid controller disposed to regulate the generation, use and delivery of the electricity to and from the electrical grid.
    Type: Application
    Filed: July 26, 2011
    Publication date: July 5, 2012
    Inventors: Lambertus Hesselink, James Gibbons
  • Correction of sharp-edge artifacts in differential phase contrast CT images and its improvement in automatic material identification
    Patent number: 11113851
    Abstract: A method for correcting image data from a differential phase contrast imaging system is provided. Data comprising distorted data due to spatial variation is obtained. The data is corrected by correcting the distorted data.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: September 7, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ching-wei Chang, Lambertus Hesselink
  • Method of choosing an optimum angle between a reference beam and an object beam to record a hologram
    Patent number: 5850299
    Abstract: A method of choosing an angle between a reference beam and a signal beam in a holographic storage apparatus is presented. The angle between the reference and signal beams can be optimized in light of crosstalk, scattering and wavelength seperation considerations.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: December 15, 1998
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: David Lande, John F. Heanue, Matthew C. Bashaw, Lambertus Hesselink
  • Enhanced photoelectron sources using electron bombardment
    Patent number: 9406488
    Abstract: A method of achieving heightened quantum efficiencies and extended photocathode lifetimes is provided that includes using an electron beam bombardment to activate color centers in a CsBr film of a photocathode, and using a laser source for pumping electrons in the color centers of the photocathode.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: August 2, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Juan R. Maldonado, Yao-Te Cheng, Piero Pianetta, R. Fabian W. Pease, Lambertus Hesselink
  • System and method for photorefractive holographic recording and signal processing
    Patent number: 4927220
    Abstract: A photorefractive crystallyte array for image recording and signal processing is disclosed. The photorefractive crystallytes are configured as a two-dimensional array of selected position and spacing designed, for example, to coincide with the spatial frequency components of an associated optical image, such as a Fourier transform image, and to permit optical signal processing.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: May 22, 1990
    Assignee: Microelectronic & Computer Technology Corp.
    Inventors: Lambertus Hesselink, Steve R. Redfield
  • Access and control system for network-enabled devices
    Patent number: 7788404
    Abstract: A publicly addressable control infrastructure includes a plurality of connection servers and a load balancing server. The load balancing server assigns connection servers to particular communication sessions based on a number of variables. A computer at a private address exchanges secure communications with another computer at a private address via a connection server. A sending buffer at the computer is adaptively polled for data for communication to the other computer.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: August 31, 2010
    Assignee: Western Digital Technologies, Inc.
    Inventors: Lambertus Hesselink, Dharmarus Rizal, Eric S. Bjornson
  • Digital holographic camera system and method having removable media
    Patent number: 6414763
    Abstract: A digital electronic camera includes a holographic medium, an imaging array disposed at a focal plane for converting optical information to digital information; and an optical system configured to store the digital information onto the holographic medium. An optical system for retrieving images stored in the medium may be provided inside the camera or as a separate appliance.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: July 2, 2002
    Assignee: Siros Technology, Inc.
    Inventors: Lambertus Hesselink, Matthew C. Bashaw
  • HOLOGRAPHIC X-RAY DETECTION
    Publication number: 20210247330
    Abstract: An apparatus for X-ray imaging is provided. An X-ray source provides an X-ray along an X-ray beam path. A holographic medium is along the X-ray beam path. An X-ray phase grating is between the X-ray source and the holographic medium along the X-ray beam path. A readout beam source provides a readout beam along a readout beam path. A readout detector is along the readout beam path, wherein the holographic medium is along the readout beam path.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 12, 2021
    Inventors: Lambertus HESSELINK, George Kiyoshi HERRING
  • Managed peer-to-peer applications, systems and methods for distributed data access and storage
    Publication number: 20050138186
    Abstract: Applications, systems and methods for efficiently accessing and controlling data of devices among multiple computers over a network. Communication of data over one or more networks may be managed by means of one or more connection servers which may also manage any or all of authentication, authorization, security, encryption and point-to-multipoint communications functionalities. Alternatively, computers may be connected over a wide area network without a connection server, and with or without a VPN.
    Type: Application
    Filed: November 13, 2004
    Publication date: June 23, 2005
    Inventors: Lambertus Hesselink, Dharmarus Rizal, Eric Bjornson
  • Near field optical storage mask layer, disk, and fabrication method
    Publication number: 20050221228
    Abstract: A mask layer for a high-density near-field optical storage system includes nonlinear optical material and nanoparticles embedded in the nonlinear optical material. The mask layer in combination with a data layer is useful for forming an optical disk. One technique for storing data in the optical disk includes using a gate beam to modify an index of refraction in a modified portion of the nonlinear optical material using a signal beam to provide nanoparticle resonance excitation of selected nanoparticles within the modified portion of the nonlinear optical material.
    Type: Application
    Filed: March 30, 2004
    Publication date: October 6, 2005
    Inventors: Xiaolei Shi, Lambertus Hesselink
  • PROGRAM RECORDING WEBIFICATION
    Publication number: 20180034895
    Abstract: A method of providing a program recording to a user includes: accessing an application service provider that includes a program database via a first connection over a network with a user processor; selecting, with the user processor, a program recording to be received at the location of the user processor; providing the program recording selected with the user processor, at the location of the application service provider or a third location different from the location of the application service provider and the location of the user processor; and delivering the selected program recording to the location of the user processor.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Inventors: Lambertus Hesselink, Dharmarus Rizal, Joep van Beurden, Eric S. Bjornson
  • Ion and impurity concentration optimization in photorefractive media for dynamic and fixed holography
    Patent number: 5729364
    Abstract: Ionic and impurity concentrations in a photorefractive holographic storage medium are optimized such that electronic and ionic Debye numbers match an expected grating wave number K, at fixing and recording temperatures, respectively. Simultaneous and sequential recording and fixing are evaluated. The photovoltaic effect is reduced, subject to response time and absorption constraints, by matching reduced and oxidized impurity concentrations.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: March 17, 1998
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Matthew C. Bashaw, John F. Heanue, Lambertus Hesselink
  • Program recording webification
    Patent number: 9807147
    Abstract: A method of providing a program recording to a user includes: accessing an application service provider that includes a program database via a first connection over a network with a user processor; selecting, with the user processor, a program recording to be received at the location of the user processor; providing the program recording selected with the user processor, at the location of the application service provider or a third location different from the location of the application service provider and the location of the user processor; and delivering the selected program recording to the location of the user processor.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 31, 2017
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Lambertus Hesselink, Dharmarus Rizal, Joep van Beurden, Eric S. Bjornson
  • Holographic x-ray detection
    Patent number: 11391679
    Abstract: An apparatus for X-ray imaging is provided. An X-ray source provides an X-ray along an X-ray beam path. A holographic medium is along the X-ray beam path. An X-ray phase grating is between the X-ray source and the holographic medium along the X-ray beam path. A readout beam source provides a readout beam along a readout beam path. A readout detector is along the readout beam path, wherein the holographic medium is along the readout beam path.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 19, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Lambertus Hesselink, George Kiyoshi Herring
  • Near-field sub-wavelength apertures
    Publication number: 20050031278
    Abstract: Near-field sub-wavelength C-apertures provide enhanced spatial resolution and power throughput by increasing the normalized resonant wavelength of the aperture. These improved apertures are characterized by the use of improved geometric proportions for C-apertures, filling the aperture with high-index material, designing aperture thickness to produce longitudinal transmission resonance, and/or tapering the aperture in the longitudinal direction to achieve impedance matching. Apertures according to the present invention may be used for many technological applications in various portions of the electromagnetic spectrum. Exemplary applications to high density optical data storage and optical particle trapping and manipulation are described.
    Type: Application
    Filed: May 14, 2004
    Publication date: February 10, 2005
    Inventors: Xiaolei Shi, Lambertus Hesselink
  • Transferring media files between users after encrypting with encryption key obtained from a digital rights management server
    Patent number: 10289809
    Abstract: A method is disclosed for transferring a media file from a first user device to a second user device. The first user device receives a first media file, and receives a first digital rights management (DRM) license from a DRM server corresponding to the first media file. The first user device encodes the first media file into a second media file using the first DRM license, and transfers the second media file to the second user device.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: May 14, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventor: Lambertus Hesselink
  • PORTABLE CONTENT CONTAINER DISPLAYING A/V FILES IN RESPONSE TO A COMMAND RECEIVED FROM A CONSUMER DEVICE
    Publication number: 20110150436
    Abstract: A portable content container is disclosed comprising a decoder for decoding an A/V file into an A/V stream. File directory information identifying one or more A/V files is transmitted to a consumer device. A display command is received from the consumer device to display a selected one of the A/V files on a display device. The selected A/V file is decoded into an A/V stream transmitted to the display device in response to the display command. In an embodiment, the portable content container further comprises local memory for storing A/V files.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventor: Lambertus Hesselink
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