Patents by Inventor Stanley Williams

Stanley Williams 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).

  • SENSOR NODE POSITIONING IN A SENSOR NETWORK
    Publication number: 20110267220
    Abstract: Systems and methods for positioning sensor nodes in a sensor network are described. A system can include multiple base nodes. The base nodes can have a differential global positioning system. The global positioning system can be used to determine a precise location of the base nodes. Sensor nodes can be placed in locations with respect to the plurality of base nodes using measurement data from at least one of the base nodes. A positional device can provide the position measurement data relative to the base nodes to a user for use in placing the plurality of sensor nodes. A communications system enables electronic communication between the base nodes and the sensor nodes.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: John Paul Strachan, R. Stanley Williams
  • COMPACT SENSOR SYSTEM
    Publication number: 20110267610
    Abstract: A compact sensor system comprising: an analysis cell configured for photon-matter interaction, where photons are received from a light source; and an integrated-optical spectral analyzer configured for identifying a set of frequencies, the integrated-optical spectral analyzer comprising: a waveguide coupled with the analysis cell, the waveguide configured for propagating a set of frequencies through the waveguide; one or more ring resonators coupled with the waveguide, the one or more ring resonators comprising a predetermined bandwidth and configured for capturing the set of frequencies corresponding to frequencies within the predetermined bandwidth; and one or more frequency detectors coupled with the one or more tunable ring resonators, the one or more frequency detectors configured for generating electrical signals that identify each of the set of frequencies.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: Min HU, Wei Wu, Fung Suong Ou, Zhen Peng, Zhiyong Li, R. Stanley Williams
  • TUNABLE APPARATUS FOR PERFORMING SERS
    Publication number: 20110267608
    Abstract: A tunable apparatus for performing Surface Enhanced Raman Spectroscopy (SERS) includes a deformable layer and a plurality of SERS-active nanoparticles disposed at one or more locations on the deformable layer, wherein the one or more locations are configured to be illuminated with light of a pump wavelength to cause Raman excitation light to interact with the nanoparticles and produce enhanced Raman scattered light from molecules located in close proximity to the nanoparticles. In addition, a morphology of the deformable layer is configured to be controllably varied to modify an intensity of the Raman scattered light produced from the molecules.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: Fung Suong Ou, Min Hu, Wei Wu, Zhiyong Li, R. Stanley Williams
  • Thermally Stable Nanoscale Switching Device
    Publication number: 20110260134
    Abstract: A nanoscale switching device provides enhanced thermal stability and endurance to switching cycles. The switching device has an active region disposed between electrodes and containing a switching material capable of carrying a species of dopants and transporting the dopants under an electrical field. At least one of the electrodes is formed of conductive material having a melting point greater than 1800° C.
    Type: Application
    Filed: July 30, 2009
    Publication date: October 27, 2011
    Inventors: Jianhua Yang, Stanley Williams, Julien Borghetti, John Paul Strachan
  • Structure including a graphene layer and method for forming the same
    Patent number: 8043687
    Abstract: A method for forming a graphene layer is disclosed herein. The method includes establishing an insulating layer on a substrate such that at least one seed region, which exposes a surface of the substrate, is formed. A seed material in the seed region is exposed to a carbon-containing precursor gas, thereby initiating nucleation of the graphene layer on the seed material and enabling lateral growth of the graphene layer along at least a portion of a surface of the insulating layer.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: October 25, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Theodore I. Kamins, R. Stanley Williams, Nathaniel Quitoriano
  • DETERMINING NODE LOCATION IN A WIRELESS NETWORK
    Publication number: 20110249594
    Abstract: Transmitting nodes broadcast chirped signals on a wireless network. The transmitting nodes are time-synchronized with each other and location of the transmitting nodes is known. A receiver node detects beat frequencies created by pairs of chirped signals from different pairs of transmitting nodes. Time delay differences between chirped signals in respective beat frequency pairs are determined. The receiver node's location is determined in view of the time delay differences.
    Type: Application
    Filed: April 13, 2010
    Publication date: October 13, 2011
    Inventors: Wei Wu, Marco Florentino, R. Stanley Williams
  • PROGRAMMABLE CROSSPOINT DEVICE WITH AN INTEGRAL DIODE
    Publication number: 20110240952
    Abstract: A programmable crosspoint device with an integral diode includes a first crossbar, a second crossbar, a metallic interlayer, and a switching oxide layer interposed between the first crossbar and the metallic interlayer. The switching oxide layer has a low resistance state and high resistance state. The programmable crosspoint device also includes an integral diode which is interposed between the second crossbar layer and the metallic interlayer, the integral diode being configured to limit the flow of leakage current through the programmable crosspoint device in one direction. A method for forming a programmable crosspoint device with an integrated diode is also provided.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jianhua Yang, Gilberto Medeiros Ribeiro, R. Stanley Williams
  • Defective Graphene-Based Memristor
    Publication number: 20110240947
    Abstract: A graphene-based memristor includes a first electrode, a defective graphene layer adjacent the first electrode, a memristive material that includes a number of ions adjacent the defective graphene layer, a second electrode adjacent the memristive material, and a voltage source that generates an electric field between the first and the second electrodes. Under the influence of the electric field, ions in the memristive material form an ion conducting channel between the second electrode and the defective graphene layer.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 6, 2011
    Inventors: Joshua Yang, Feng Miao, Wei Wu, Shih-Yuan Wang, R. Stanley Williams
  • MEMRISTIVE DEVICE
    Publication number: 20110240951
    Abstract: A memristive device includes a first electrode and a second electrode crossing the first electrode at a non-zero angle. An active region is disposed between the first and second electrodes. The active region has defects therein. Graphene or graphite is disposed between the active region and the first electrode and/or between the active region and the second electrode.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Inventors: Jianhua Yang, Feng Miao, Wei Wu, Shih-Yuan Wang, R. Stanley Williams
  • Graphene Memristor Having Modulated Graphene Interlayer Conduction
    Publication number: 20110240946
    Abstract: A graphene memristor includes a first electrode, a second electrode electrically coupled to the first electrode, an active region interspersed between the first and second electrodes, a defective graphene structure that modulates a barrier height to migration of ions through the active region, fast diffusing ions that migrate under the influence an electric field to change a state of the graphene memristor, and a source that generates the electric field.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Inventors: Feng Miao, Joshua Yang, Wei Wu, Shih-Yuan Wang, R. Stanley Williams
  • Programmable Bipolar Electronic Device
    Publication number: 20110228592
    Abstract: A configurable memristive device (300) for regulating an electrical signal includes a memristive matrix (350) containing a first dopant species; emitter (320), collector (310), and a base electrodes (330, 340) which are in contact with the memristive matrix (350); and a mobile dopant species contained within a central region (360) contiguous with the base electrodes (330, 340), the mobile dopant species moving within the memristive matrix (350) in response to a programming electrical field. A method of configuring and using a memristive device (300) includes: applying a programming electrical field across a memristive matrix (350) such that a mobile dopant species creates a central doped region (360) which bisects the memristive matrix (350); and applying a control voltage to the central doped region (360) to regulate current flow between an emitter electrode (320) and a collector electrode (310).
    Type: Application
    Filed: January 13, 2009
    Publication date: September 22, 2011
    Inventors: Theodore I. Kamins, R. Stanley Williams
  • Metamaterials and methods of making the same
    Patent number: 8017239
    Abstract: A metamaterial includes a non-linear organic material and a plurality of metallic resonators embedded substantially within the non-linear organic material.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 13, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexandre M. Bratkovski, R. Stanley Williams
  • Optical interconnect
    Patent number: 8009992
    Abstract: An optical interconnect includes a translatable optical source; an optical modulator element disposed on a circuit board and configured to receive an optical beam from the optical source; and an optical receiver disposed on a circuit board and configured to receive a modulated optical beam from the modulator element.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: August 30, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: R. Stanley Williams
  • Dynamic optical signal tracking on a detector array in a free space optical communication system
    Patent number: 8009991
    Abstract: A free-space optical communication system includes a detector array having a plurality of detector elements and a transmitting source. Dynamic movement of the optical signal on the detector array is caused by changes in orientation of the transmitting source. A tracker tracks the movement of the optical signal in real-time on the detector array. An output signal is derived from at least one of the detector elements illuminated by the optical signal.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: August 30, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Terrel Morris, Michael Renne Ty Tan, Shih-Yuan Wang, R. Stanley Williams, Duncan Stewart, Marco Fiorentino
  • Configurable molecular switch array
    Patent number: 8004876
    Abstract: A computing system for implementing at least one electronic circuit with gain comprises at least one two-dimensional molecular switch array. The molecular switch array is formed by assembling two or more crossed planes of wires into a configuration of devices. Each device comprises a junction formed by a pair of crossed wires and at least one connector species that connects the pair of crossed wires in the junction. The junction has a functional dimension in nanometers, and includes a switching capability provided by both (1) one or more connector species and the pair of crossed wires and (2) a configurable nano-scale wire transistor having a first state that functions as a transistor and a second state that functions as a conducting semiconductor wire. Specific connections are made to interconnect the devices and connect the devices to two structures that provide high and low voltages.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: August 23, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gregory S. Snider, Philip J. Kuekes, R. Stanley Williams
  • Memristive Device and Methods of Making and Using the Same
    Publication number: 20110182108
    Abstract: A memristive device is disclosed herein. The device includes a first electrode, a second electrode, and an active region disposed between the first and second electrodes. At least two mobile species are present in the active region. Each of the at least two mobile species is configured to define a separate state variable of the memristive device.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 28, 2011
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: R. Stanley Williams, Dmitri Borisovich Strukov, Alexandre Bratkovski
  • Electrically Actuated Devices
    Publication number: 20110181352
    Abstract: An electrically actuated device includes a first electrode, a second electrode, and an active region disposed between the first and second electrodes. At least two dopants are present in a spatially varying region of the active region prior to device actuation. The at least two dopants have opposite conductivity types and different mobilities.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 28, 2011
    Applicant: Hewlett-Packard Development Company, LP
    Inventors: Theodore I. Kamins, R. Stanley Williams
  • Optical system with superlens
    Patent number: 7983135
    Abstract: An optical system includes an optical recording medium configured to store data and a light device configured to emit a beam of light to write the data to the optical recording medium or read the data from the optical recording medium. The optical system also includes a superlens positioned between the optical recording medium and the light device. The superlens is configured to focus the beam of light emitted from the light device to create a focused beam of light on the optical recording medium.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: July 19, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shih-Yuan Wang, R. Stanley Williams
  • MEMFET RAM
    Publication number: 20110169052
    Abstract: A non-volatile field-effect device. The non-volatile field-effect device includes a source, a drain, a channel-formation portion and a memristive gate. The channel-formation portion is disposed between and coupled with the source and the drain. The memristive gate is disposed over the channel-formation portion and coupled with the channel-formation portion. The memristive gate includes a plurality of mobile ions and a confinement structure for the plurality of mobile ions. Moreover, the memristive gate is configured to switch the channel-formation portion from a first conductivity state to a second conductivity state in response to migration of the plurality of mobile ions within the confinement structure.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 14, 2011
    Inventors: Alexandre M. Bratkovski, R. Stanley Williams
  • Photonic Device And Method Of Making Same Using Nanowires
    Publication number: 20110168256
    Abstract: A photonic device, a method of making the device and a nano-scale antireflector employ a bramble of nanowires. The photonic device and the method include a first layer of a microcrystalline material provided on a substrate surface and a second layer of a microcrystalline material provided on the substrate surface horizontally spaced from the first layer by a gap. The photonic device and the method further include, and the nano-scale antireflector includes, the bramble of nanowires formed between the first layer and the second layer. The nanowires have first ends integral to crystallites in each of the first layer and the second layer. The nanowires of the bramble extend into the gap from each of the first layer and the second layer.
    Type: Application
    Filed: October 3, 2008
    Publication date: July 14, 2011
    Inventors: Shih-Yuan Wang, R. Stanley Williams, Nobuhiko Kabayashi