Patents by Inventor Antony Ian Taylor Rowstron

Antony Ian Taylor Rowstron 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: 20240104162
    Abstract: A system for estimating values of a vector of variables that optimize a function comprising a weighted sum of interactions between the variables; the system comprising a plurality of parallel hardware channels, each arranged to model a contribution of a respective variable to the function, each channel comprising: a signal generator configured to generate a signal modelling a value of the respective variable; a splitter arranged to supply the signal to each of the channels; interaction logic configured to multiply the vector of signals by a vector of weights modelling an interaction between the respective variable and the vector of variables, thereby generating a feedback signal representing the contribution of the respective variable; and a feedback path to return the feedback signal to the signal generator configured to adapt the signal in dependence on the feedback signal, wherein each channel is implemented only using optical components and/or analogue electronic components.
    Type: Application
    Filed: January 28, 2022
    Publication date: March 28, 2024
    Inventors: Francesca PARMIGIANI, Christos GKANTSIDIS, István HALLER, Hitesh BALLANI, Antony Ian Taylor ROWSTRON, Andrey RYBALCHENKO
  • Patent number: 11894035
    Abstract: A holographic data storage system comprises an emitter system, a holographic recording medium, and an input waveguide network formed of one or more multimode optical waveguides. The holographic recording medium has multiple recording regions, each optically coupled to a corresponding one of multiple out-coupling regions of the input waveguide network, the holographic data storage system arranged to persistently write data of an input beam, received at any one of the out-coupling regions, to the corresponding recording region. A controller is coupled to at least one of the emitter system and at least one controllable guiding element of the input waveguide network and controls at least one optical characteristic of the input beam or the at least one guiding element, so as to guide the input beam from an in-coupling region to any selected one of the multiple out-coupling regions. Similar waveguide networks are provided for carrying reference and output beams.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: February 6, 2024
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Douglas James Kelly, Benn Charles Thomsen, Dushyanth Narayanan, Antony Ian Taylor Rowstron, Andreas Georgiou
  • Publication number: 20240020567
    Abstract: An apparatus comprising: a crystal; a wire pair formed of a first wire connected so as to receive a first alternating current, and a second wire connected so as to receive a second alternating current substantially antiparallel to the first alternating current in the first wire, and located adjacent the first wire such that a localized electromagnetic filed is created in a region local to the wire pair via constructive electromagnetic interference between the first wire and the second wire in the region local to the wire pair and destructive electromagnetic field interference between the first wire and the second wire outside of the region local to the wire pair; and a colour centre located within the crystal in the region local to the wire pair.
    Type: Application
    Filed: December 20, 2022
    Publication date: January 18, 2024
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Georgios CHATZIDROSOS, Foteini KARINOU, Patrick Neil ANDERSON, Hitesh BALLANI, Anna MITENKOVA, Antony Ian Taylor ROWSTRON
  • Publication number: 20230409948
    Abstract: An apparatus comprising: a crystal; and a colour centre located within the crystal and adapted to receive: a magnetic field, such that a projection of the magnetic field onto a colour centre axis of the colour centre causes a change in an electron spin resonance frequency of the colour centre, and an electromagnetic signal having a frequency that substantially matches the electron spin resonance frequency of the colour centre as changed by the projection of the magnetic field onto the colour centre axis.
    Type: Application
    Filed: December 20, 2022
    Publication date: December 21, 2023
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Georgios CHATZIDROSOS, Foteini KARINOU, Patrick Neil ANDERSON, Hitesh BALLANI, Anna MITENKOVA, Antony Ian Taylor ROWSTRON
  • Publication number: 20230409947
    Abstract: An apparatus comprising a crystal; at least three first wires arranged substantially parallel to each other; at least two second wires arranged substantially parallel to each other, each second wire arranged non-parallel to each first wire, such that each second wire crosses each first wire, forming at least six cross points; and at least six colour centres, each colour centre located within the crystal adjacent a different one of the at least six cross points.
    Type: Application
    Filed: December 19, 2022
    Publication date: December 21, 2023
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Georgios CHATZIDROSOS, Foteini KARINOU, Patrick Neil ANDERSON, Hitesh BALLANI, Anna MITENKOVA, Antony Ian Taylor ROWSTRON
  • Patent number: 11831333
    Abstract: A method of reading from a storage medium to recover a group of information sectors, each comprising a respective information payload. The medium stores redundancy data comprising a plurality of separate redundancy codes for the group, each code being a linear sum of terms, each term in the sum being the information payload from a different respective one of the information sectors in the group weighted by a respective coefficient of a set of coefficients for the redundancy code. The method comprises, after the redundancy data has already been stored on the medium: identifying a set of k? information sectors to be recovered; selecting k? of the redundancy codes; determining a square matrix E of the k? information sectors by the k? sets of coefficients of the selected codes; determining a matrix D being a matrix inverse of E; and recovering the k? information payloads from the inverse matrix D.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: November 28, 2023
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Christos Gkantsidis, Antony Ian Taylor Rowstron, Andromachi Chatzieleftheriou, Richard John Black, Austin N. Donnelly, István Haller
  • Publication number: 20230360674
    Abstract: A holographic data storage system comprises an emitter system, a holographic recording medium, and an input waveguide network formed of one or more multimode optical waveguides. The holographic recording medium has multiple recording regions, each optically coupled to a corresponding one of multiple out-coupling regions of the input waveguide network, the holographic data storage system arranged to persistently write data of an input beam, received at any one of the out-coupling regions, to the corresponding recording region. A controller is coupled to at least one of the emitter system and at least one controllable guiding element of the input waveguide network and controls at least one optical characteristic of the input beam or the at least one guiding element, so as to guide the input beam from an in-coupling region to any selected one of the multiple out-coupling regions. Similar waveguide networks are provided for carrying reference and output beams.
    Type: Application
    Filed: February 22, 2021
    Publication date: November 9, 2023
    Inventors: Douglas James KELLY, Benn Charles THOMSEN, Dushyanth NARAYANAN, Antony Ian Taylor ROWSTRON, Andreas GEORGIOU
  • Publication number: 20230120717
    Abstract: A method of performing a write operation in a holographic data storage system, in which schedule schedules at least one write operation across multiple non-contiguous write intervals, the write operation pertaining to a set of data to be stored in a region of a holographic recording medium. In each of the non-contiguous write intervals, the region of the holographic recording medium is exposed to an interference pattern caused by interference between a reference beam and an input beam carrying the set of data. The multiple non-contiguous write intervals have a total aggregate duration of sufficient length to cause a persistent state change in the exposed region, such that the set of data is recoverable from that region by the end of a final write interval of the multiple non-contiguous write intervals.
    Type: Application
    Filed: February 22, 2021
    Publication date: April 20, 2023
    Inventors: Jiaqi CHU, Benn Charles THOMSEN, Dushyanth NARAYANAN, Antony Ian Taylor ROWSTRON
  • Patent number: 11624700
    Abstract: One example provides a system for reading birefringent data. The system comprises one or more light sources, a first polarization state generator positioned to generate first polarized light from light of a first wavelength band output by the one or more light sources, a second polarization state generator positioned to generate second polarized light from light of a second wavelength band output by the one or light sources, an image sensor configured to acquire an image of the sample region via the first polarized light and the second polarized light, a polarization state analyzer disposed between the sample region and the image sensor, a first bandpass filter configured to pass light of the first wavelength band onto the image sensor, and a second bandpass filter configured to pass light of the second wavelength band onto the image sensor.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: April 11, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ariel Gomez Diaz, David Lara Saucedo, Peter Gyula Scholtz, Ioan Alexandru Stefanovici, Pashmina Jonathan Cameron, Govert Michael Verkes, Richard John Black, Timothy John Deegan, James Hilton Clegg, Antony Ian Taylor Rowstron
  • Publication number: 20230104873
    Abstract: In an optical data transfer system, a beam modulator is configured to embed a set of data in an input beam. A multimode optical waveguide network has an in-coupling region for receiving the input beam. The multimode optical waveguide network is configured to guide the input beam to an out-coupling region of the multimode optical waveguide network. A spatial coherent detector is configured to measure a phase and an amplitude of an output optical field at multiple locations. The output optical field is at least partially defined by the input beam and thus exhibiting distortion effects caused by the passage of the beam through the multimode waveguide network. Signal processing is applied to an output of the spatial coherent detector, in order to compensate for the distortion effects, and thereby recover, from the output of the spatial coherent detector, the set of data embedded in the input beam.
    Type: Application
    Filed: March 15, 2021
    Publication date: April 6, 2023
    Inventors: Douglas James KELLY, Benn Charles THOMSEN, Dushyanth NARAYANAN, Antony Ian Taylor ROWSTRON
  • Publication number: 20230053467
    Abstract: A method of reading from a storage medium to recover a group of information sectors, each comprising a respective information payload. The medium stores redundancy data comprising a plurality of separate redundancy codes for the group, each code being a linear sum of terms, each term in the sum being the information payload from a different respective one of the information sectors in the group weighted by a respective coefficient of a set of coefficients for the redundancy code. The method comprises, after the redundancy data has already been stored on the medium: identifying a set of k? information sectors to be recovered; selecting k? of the redundancy codes; determining a square matrix E of the k? information sectors by the k? sets of coefficients of the selected codes; determining a matrix D being a matrix inverse of E; and recovering the k? information payloads from the inverse matrix D.
    Type: Application
    Filed: December 14, 2020
    Publication date: February 23, 2023
    Inventors: Christos GKANTSIDIS, Antony Ian Taylor ROWSTRON, Andromachi CHATZIELEFTHERIOU, Richard John BLACK, Austin N. DONNELLY, István HALLER
  • Publication number: 20230048079
    Abstract: A multimode optical waveguide network comprises a parent waveguide and a plurality of child waveguides. Each waveguide is a multimode optical waveguide having a first surface region, multiple second surface regions, and at least one guiding element attached to a surface of the waveguide or embedded within the waveguide, each second surface region of the parent waveguide optically coupled to the first surface region of a corresponding child waveguide. The guiding element(s) of the parent waveguide is arranged to guide a beam, from or to its first surface region, to or from any selected second surface region of its multiple second surface regions. The guiding element(s) of each of the waveguides is configurable for selecting the second surface region of that waveguide and/or responsive to at least one beam characteristic for selecting the second surface region of that waveguide via modulation of the at least one beam characteristic.
    Type: Application
    Filed: February 22, 2021
    Publication date: February 16, 2023
    Inventors: Douglas James KELLY, Benn Charles THOMSEN, Dushyanth NARAYANAN, Antony Ian Taylor ROWSTRON, Andreas GEORGIOU
  • Publication number: 20220404268
    Abstract: One example provides a system for reading birefringent data. The system comprises one or more light sources, a first polarization state generator positioned to generate first polarized light from light of a first wavelength band output by the one or more light sources, a second polarization state generator positioned to generate second polarized light from light of a second wavelength band output by the one or light sources, an image sensor configured to acquire an image of the sample region via the first polarized light and the second polarized light, a polarization state analyzer disposed between the sample region and the image sensor, a first bandpass filter configured to pass light of the first wavelength band onto the image sensor, and a second bandpass filter configured to pass light of the second wavelength band onto the image sensor.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 22, 2022
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Ariel GOMEZ DIAZ, David LARA SAUCEDO, Peter Gyula SCHOLTZ, Ioan Alexandru STEFANOVICI, Pashmina Jonathan CAMERON, Govert Michael VERKES, Richard John BLACK, Timothy John DEEGAN, James Hilton CLEGG, Antony Ian Taylor ROWSTRON
  • Patent number: 11422086
    Abstract: One example provides a system for reading birefringent data. The system comprises one or more light sources, a first polarization state generator positioned to generate first polarized light from light of a first wavelength band output by the one or more light sources, a second polarization state generator positioned to generate second polarized light from light of a second wavelength band output by the one or light sources, an image sensor configured to acquire an image of the sample region via the first polarized light and the second polarized light, a polarization state analyzer disposed between the sample region and the image sensor, a first bandpass filter configured to pass light of the first wavelength band onto the image sensor, and a second bandpass filter configured to pass light of the second wavelength band onto the image sensor.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: August 23, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ariel Gomez Diaz, David Lara Saucedo, Peter Gyula Scholtz, Ioan Alexandru Stefanovici, Pashmina Jonathan Cameron, Govert Michael Verkes, Richard John Black, Timothy John Deegan, James Hilton Clegg, Antony Ian Taylor Rowstron
  • Patent number: 11232006
    Abstract: A server system comprising storage devices, processing devices and a storage fabric all operating according to a storage fabric protocol. The storage fabric comprises a plurality of individual switches having a modular design from which an overall switch is built, and the individual switches have individual respective configuration settings which determine which processing devices are allocated to use which of the storage devices. The system comprises an API enabling a software control function to configure the overall switch. The API is operable to receive from the control function an overall mapping of the storage devices to the processing devices instead of requiring the individual configuration settings of each of the individual switches to be specified by the control function, the API being configured to convert the overall mapping into the individual configuration settings of the individual switches to produce the overall mapping.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: January 25, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Serguei Anatolievitch Legtchenko, Mark Shaw, Austin Donnelly, Hugh Williams, Richard Black, Antony Ian Taylor Rowstron, Aaron Ogus, Douglas Phillips
  • Publication number: 20210349010
    Abstract: One example provides a system for reading birefringent data. The system comprises one or more light sources, a first polarization state generator positioned to generate first polarized light from light of a first wavelength band output by the one or more light sources, a second polarization state generator positioned to generate second polarized light from light of a second wavelength band output by the one or light sources, an image sensor configured to acquire an image of the sample region via the first polarized light and the second polarized light, a polarization state analyzer disposed between the sample region and the image sensor, a first bandpass filter configured to pass light of the first wavelength band onto the image sensor, and a second bandpass filter configured to pass light of the second wavelength band onto the image sensor.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 11, 2021
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Ariel GOMEZ DIAZ, David LARA SAUCEDO, Peter Gyula SCHOLTZ, Ioan Alexandru STEFANOVICI, Pashmina Jonathan CAMERON, Govert Michael VERKES, Richard John BLACK, Timothy John DEEGAN, James Hilton CLEGG, Antony Ian Taylor ROWSTRON
  • Publication number: 20210224355
    Abstract: Examples are disclosed that relate to encoding data on a data-storage medium. The method comprises obtaining a representation of a measurement performed on the data-storage medium, the representation being based on a previously recorded pattern of data encoded in the data-storage medium in a layout that defines a plurality of data locations. The method further comprises inputting the representation into a data decoder comprising a trained machine-learning function, and obtaining from the data decoder, for each data location of the layout, a plurality of probability values, wherein each probability value is associated with a corresponding data value and represents the probability that the corresponding data value matches the actual data value in the previously recorded pattern of data at a same location in the layout.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Ioan Alexandru STEFANOVICI, Benn Charles Thomsen, Alexander Lloyd Gaunt, Antony Ian Taylor Rowstron, Reinhard Sebastian Bernhard Nowozin
  • Patent number: 10970363
    Abstract: Examples are disclosed that relate to reading stored data. The method comprises obtaining a representation of a measurement performed on a data-storage medium, the representation being based on a previously recorded pattern of data encoded in the data-storage medium in a layout that defines a plurality of data locations. The method further comprises inputting the representation into a data decoder comprising a trained machine-learning function, and obtaining from the data decoder, for each data location of the layout, a plurality of probability values, wherein each probability value is associated with a corresponding data value and represents the probability that the corresponding data value matches the actual data value in the previously recorded pattern of data at a same location in the layout.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: April 6, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ioan Alexandru Stefanovici, Benn Charles Thomsen, Alexander Lloyd Gaunt, Antony Ian Taylor Rowstron, Reinhard Sebastian Bernhard Nowozin
  • Publication number: 20210096968
    Abstract: A server system comprising storage devices, processing devices and a storage fabric all operating according to a storage fabric protocol. The storage fabric comprises a plurality of individual switches having a modular design from which an overall switch is built, and the individual switches have individual respective configuration settings which determine which processing devices are allocated to use which of the storage devices. The system comprises an API enabling a software control function to configure the overall switch. The API is operable to receive from the control function an overall mapping of the storage devices to the processing devices instead of requiring the individual configuration settings of each of the individual switches to be specified by the control function, the API being configured to convert the overall mapping into the individual configuration settings of the individual switches to produce the overall mapping.
    Type: Application
    Filed: August 19, 2020
    Publication date: April 1, 2021
    Inventors: Serguei Anatolievitch LEGTCHENKO, Mark SHAW, Austin DONNELLY, Hugh WILLIAMS, Richard BLACK, Antony Ian Taylor ROWSTRON, Aaron OGUS, Douglas PHILLIPS
  • Patent number: 10809926
    Abstract: A server system comprising storage devices, processing devices and a storage fabric all operating according to a storage fabric protocol. The storage fabric comprises a plurality of individual switches having a modular design from which an overall switch is built, and the individual switches have individual respective configuration settings which determine which processing devices are allocated to use which of the storage devices. The system comprises an API enabling a software control function to configure the overall switch. The API is operable to receive from the control function an overall mapping of the storage devices to the processing devices instead of requiring the individual configuration settings of each of the individual switches to be specified by the control function, the API being configured to convert the overall mapping into the individual configuration settings of the individual switches to produce the overall mapping.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 20, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Serguei Anatolievitch Legtchenko, Mark Shaw, Austin Donnelly, Hugh Williams, Richard Black, Antony Ian Taylor Rowstron, Aaron Ogus, Douglas Phillips