Patents by Inventor Richard John Hughes

Richard John Hughes 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).

  • Publication number: 20200233645
    Abstract: Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 23, 2020
    Applicant: Triad National Security, LLC
    Inventors: Jane Elizabeth Nordholt, Richard John Hughes, Raymond Thorson Newell, Charles Glen Peterson
  • Publication number: 20200217512
    Abstract: An automatic oven having a controller and a sensor assembly for automatically determining a food type for a food item placed in a cooking chamber of the automatic oven, and cooks the automatically determined food item according to a cooking profile selected based on the determined food type, while optionally accommodating a user input on the determining of the food type, and the cooking profile, including an optional degree of doneness.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 9, 2020
    Inventors: ALEXANDER L. CLAYTON, VINCE HUANG, XIANGXU LI, KEN LEI, HANKS HU, JUAN CHEN, TRACY YU, JACK LI, ROY QIU, SETH HERNDON, DONALD JOHN GILMORE, CRISTIANO VITO PASTORE, DICK GE, PALLAVI MANJREKAR, BRUCE M. WIATRAK, ANDREA FERRISE, BLAKE CARTWRIGHT, RICHARD J. HUGHES, JOEL FLETTY, WYNDHAM F. GARY, JR., JOSHUA G. ABDOO, COLLIN A. STIPE, NICHOLAS BRENN, CASEY L. MCCUAN, CHRISTOPHER L. CARPENTER
  • Patent number: 10574461
    Abstract: Message authenticators for quantum-secured communications facilitate low-latency authentication with assurances of security. Low-latency message authenticators are especially valuable in infrastructure systems where security and latency constraints are difficult to satisfy with conventional non-quantum cryptography. For example, a message transmitter receives a message and derives an authentication tag for the message based at least in part on an authenticator that uses one or more quantum keys. The message transmitter outputs the message and its authentication tag. A message receiver receives a message and authentication tag for the message. The message receiver derives a comparison tag for the message based at least in part on an authenticator that uses one or more quantum keys. The message receiver checks whether the message is authentic based on a comparison of the authentication tag and the comparison tag. In example implementations, the authenticator uses stream-wise cyclic redundancy code operations.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 25, 2020
    Assignee: Triad National Security, LLC
    Inventors: Richard John Hughes, Jane Elizabeth Nordholt, Charles Glen Peterson, Kush T. Tyagi, Christopher C. Wipf, Raymond Thorson Newell, Kevin P. McCabe, Nicholas Dallmann
  • Patent number: 10564933
    Abstract: Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: February 18, 2020
    Assignee: Triad National Security, LLC
    Inventors: Jane Elizabeth Nordholt, Richard John Hughes, Raymond Thorson Newell, Charles Glen Peterson
  • Publication number: 20190216574
    Abstract: Marking apparatus for marking tissue imaged through an imaging device including a viewing element in the form of a spacer having an imaging window which provides an imaging zone through which tissue can be imaged by an imaging probe. The apparatus can include a marker implement connected to a coupling device. In some embodiments, the coupling device is configurable to position the marker implement in a first position substantially out of the imaging window and a second position in the imaging zone of the imaging window. The marker implement can apply a mark when in the second position and thereby to tissue in the imaging zone while the apparatus remains in the imaging position on the tissue. The spacer can be length adjustable in order to change the depth of focus of the imaging probe, thereby to focus at different depths within a patient's skin.
    Type: Application
    Filed: March 22, 2019
    Publication date: July 18, 2019
    Inventors: Andrew John Coleman, Edward Benjamin Hughes, Timothy James Coveney, Richard Anthony Edward Page, Richard Smith, Neil Anthony Litten, Mayur Arunkumar Patel, Paul Antony Merritt
  • Patent number: 10291399
    Abstract: Quantum secure communication systems communicate quantum signals for quantum key distribution and classical signals with encrypted data and commands via a single optical fiber. In some systems, the single fiber carries classical data in both directions along with quantum communications. For example, quantum keys can be used to encrypt packets for bidirectional communication between two parties. In other systems, a single fiber is used for one way classical communications and quantum communications. The communication systems are secured using a security parameter based on the quantum and classical communications across the optical fiber.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 14, 2019
    Assignee: Traid National Security, LLC
    Inventors: Jane Elizabeth Nordholt, Richard John Hughes, Charles Glen Peterson, Raymond Thorson Newell
  • Publication number: 20180239592
    Abstract: Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 23, 2018
    Applicant: Los Alamos National Security, LLC
    Inventors: Jane Elizabeth Nordholt, Richard John Hughes, Raymond Thorson Newell, Charles Glen Peterson
  • Patent number: 10019235
    Abstract: Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 10, 2018
    Assignee: Los Alamos National Security, LLC
    Inventors: Jane Elizabeth Nordholt, Richard John Hughes, Raymond Thorson Newell, Charles Glen Peterson, Alexander Rosiewicz
  • Patent number: 9887976
    Abstract: Multi-factor authentication using quantum communication (“QC”) includes stages for enrollment and identification. For example, a user enrolls for multi-factor authentication that uses QC with a trusted authority. The trusted authority transmits device factor information associated with a user device (such as a hash function) and user factor information associated with the user (such as an encrypted version of a user password). The user device receives and stores the device factor information and user factor information. For multi-factor authentication that uses QC, the user device retrieves its stored device factor information and user factor information, then transmits the user factor information to the trusted authority, which also retrieves its stored device factor information.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: February 6, 2018
    Assignee: Los Alamos National Security, LLC
    Inventors: Richard John Hughes, Charles Glen Peterson, James T. Thrasher, Jane E. Nordholt, Jon T. Yard, Raymond Thorson Newell, Rolando D. Somma
  • Patent number: 9866379
    Abstract: Quantum communication transmitters include beacon lasers that transmit a beacon optical signal in a predetermined state of polarization such as one of the states of polarization of a quantum communication basis. Changes in the beacon polarization are detected at a receiver, and a retarder is adjusted so that the states of polarization in a received quantum communication optical signal are matched to basis polarizations. The beacon and QC signals can be at different wavelengths so that the beacon does not interfere with detection and decoding of the QC optical signal.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: January 9, 2018
    Assignee: Los Alamos National Security, LLC
    Inventors: Jane Elizabeth Nordholt, Raymond Thorson Newell, Charles Glen Peterson, Richard John Hughes
  • Patent number: 9819418
    Abstract: Security is increased in quantum communication (QC) systems lacking a true single-photon laser source by encoding a transmitted optical signal with two or more decoy-states. A variable attenuator or amplitude modulator randomly imposes average photon values onto the optical signal based on data input and the predetermined decoy-states. By measuring and comparing photon distributions for a received QC signal, a single-photon transmittance is estimated. Fiber birefringence is compensated by applying polarization modulation. A transmitter can be configured to transmit in conjugate polarization bases whose states of polarization (SOPs) can be represented as equidistant points on a great circle on the Poincaré sphere so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: November 14, 2017
    Assignee: Los Alamos National Security, LLC
    Inventors: Jane E. Nordholt, Charles Glen Peterson, Raymond Thorson Newell, Richard John Hughes
  • Publication number: 20170244687
    Abstract: Techniques for confidential delivery of entropy and random data over a network are disclosed. In some embodiments, a client device may receive a first set of random numbers from a server and transform the first set using a second set of random numbers to generate a third set of random numbers. The client device may update a client secret key based on a first subset of the third set of random numbers and determine a re-key interval based on a second subset of the third set of random numbers. Also in some embodiments, the server may encrypt random numbers using a first key before sending to the client, and the client may decrypt the random numbers using a second, different and unrelated key to derive a different set of random numbers. By using mismatched keys, the client may preserve the confidentiality of the random numbers it ultimately uses.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 24, 2017
    Inventors: Richard MOULDS, Richard John HUGHES, Jane Elizabeth NORDHOLT
  • Patent number: 9680641
    Abstract: Techniques and tools for quantum key distribution (“QKD”) between a quantum communication (“QC”) card, base station and trusted authority are described herein. In example implementations, a QC card contains a miniaturized QC transmitter and couples with a base station. The base station provides a network connection with the trusted authority and can also provide electric power to the QC card. When coupled to the base station, after authentication by the trusted authority, the QC card acquires keys through QKD with a trust authority. The keys can be used to set up secure communication, for authentication, for access control, or for other purposes. The QC card can be implemented as part of a smart phone or other mobile computing device, or the QC card can be used as a fillgun for distribution of the keys.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: June 13, 2017
    Assignee: Los Alamos National Security, LLC
    Inventors: Jane E. Nordholt, Richard John Hughes, Raymond Thorson Newell, Charles Glen Peterson, Danna Rosenberg, Kevin Peter McCabe, Kush T. Tyagi, Nicholas Dallmann
  • Patent number: 9680640
    Abstract: Techniques and tools for implementing protocols for secure multi-party communication after quantum key distribution (“QKD”) are described herein. In example implementations, a trusted authority facilitates secure communication between multiple user devices. The trusted authority distributes different quantum keys by QKD under trust relationships with different users. The trusted authority determines combination keys using the quantum keys and makes the combination keys available for distribution (e.g., for non-secret distribution over a public channel). The combination keys facilitate secure communication between two user devices even in the absence of QKD between the two user devices. With the protocols, benefits of QKD are extended to multi-party communication scenarios. In addition, the protocols can retain benefit of QKD even when a trusted authority is offline or a large group seeks to establish secure communication within the group.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: June 13, 2017
    Assignee: Los Alamos National Security, LLC
    Inventors: Richard John Hughes, Jane Elizabeth Nordholt, Charles Glen Peterson
  • Publication number: 20160380765
    Abstract: The present invention provides a quantum-enabled security (QES) protocol which creates a revolutionary new cybersecurity capability: quantum (single-photon) communications are integrated with optical communications to provide a strong, innate security foundation at the photonic layer for optical fiber networks or free-space optical communications. The new protocols will also allow the formation of ad hoc coalitions of users in order to deliver quantum-enabled security users between users who may not have direct quantum communications.
    Type: Application
    Filed: April 22, 2016
    Publication date: December 29, 2016
    Inventors: Richard John Hughes, Charles Glen Peterson, Jane Elizabeth Nordholt, Raymond Thorson Newell, Peter C. Hendrickson
  • Patent number: 9509506
    Abstract: Innovations for quantum key management harness quantum communications to form a cryptography system within a public key infrastructure framework. In example implementations, the quantum key management innovations combine quantum key distribution and a quantum identification protocol with a Merkle signature scheme (using Winternitz one-time digital signatures or other one-time digital signatures, and Merkle hash trees) to constitute a cryptography system. More generally, the quantum key management innovations combine quantum key distribution and a quantum identification protocol with a hash-based signature scheme. This provides a secure way to identify, authenticate, verify, and exchange secret cryptographic keys.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: November 29, 2016
    Assignee: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Richard John Hughes, James Thomas Thrasher, Jane Elizabeth Nordholt
  • Publication number: 20160328211
    Abstract: Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 10, 2016
    Inventors: Jane Elizabeth NORDHOLT, Richard John HUGHES, Raymond Thorson NEWELL, Charles Glen PETERSON, Alexander ROSIEWICZ
  • Publication number: 20160248586
    Abstract: Message authenticators for quantum-secured communications facilitate low-latency authentication with assurances of security. Low-latency message authenticators are especially valuable in infrastructure systems where security and latency constraints are difficult to satisfy with conventional non-quantum cryptography. For example, a message transmitter receives a message and derives an authentication tag for the message based at least in part on an authenticator that uses one or more quantum keys. The message transmitter outputs the message and its authentication tag. A message receiver receives a message and authentication tag for the message. The message receiver derives a comparison tag for the message based at least in part on an authenticator that uses one or more quantum keys. The message receiver checks whether the message is authentic based on a comparison of the authentication tag and the comparison tag. In example implementations, the authenticator uses stream-wise cyclic redundancy code operations.
    Type: Application
    Filed: September 30, 2014
    Publication date: August 25, 2016
    Inventors: Richard John HUGHES, Jane Elizabeth NORDHOLT, Charles Glen PETERSON, Kush T. TYAGI, Christopher C. WIPF, Raymond Thorson NEWELL, Kevin P. MCCABE, Nicholas DALLMANN
  • Publication number: 20160218867
    Abstract: Quantum secure communication systems communicate quantum signals for quantum key distribution and classical signals with encrypted data and commands via a single optical fiber. In some systems, the single fiber carries classical data in both directions along with quantum communications. For example, quantum keys can be used to encrypt packets for bidirectional communication between two parties. In other systems, a single fiber is used for one way classical communications and quantum communications. The communication systems are secured using a security parameter based on the quantum and classical communications across the optical fiber.
    Type: Application
    Filed: September 30, 2014
    Publication date: July 28, 2016
    Applicant: Whitewood Encryption Systems, Inc.
    Inventors: Jane Elizabeth NORDHOLT, Richard John HUGHES, Charles Glen PETERSON, Raymond Thorson NEWELL
  • Patent number: 9287994
    Abstract: Birefringence in optical fibers is compensated by applying polarization modulation at a receiver. Polarization modulation is applied so that a transmitted optical signal has states of polarization (SOPs) that are equally spaced on the Poincaré sphere. Fiber birefringence encountered in propagation between a transmitter and a receiver rotates the great circle on the Poincaré sphere that represents the polarization bases used for modulation. By adjusting received polarizations, polarization components of the received optical signal can be directed to corresponding detectors for decoding, regardless of the magnitude and orientation of the fiber birefringence. A transmitter can be configured to transmit in conjugate polarization bases whose SOPs can be represented as equidistant points on a great circle so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 15, 2016
    Assignee: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Jane Elizabeth Nordholt, Charles Glen Peterson, Raymond Thorson Newell, Richard John Hughes