Patents by Inventor Stefan Alexander

Stefan Alexander 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).

  • Patent number: 10191283
    Abstract: Systems, devices, and methods for eyebox expansion by exit pupil replication in wearable heads-up displays (“WHUDs”) are described. A WHUD includes a scanning laser projector (“SLP”), a holographic combiner, and an exit pupil selector positioned in the optical path therebetween. The exit pupil selector is controllably switchable into and between N different configurations. In each of the N configurations, the exit pupil selector receives a light signal from the SLP and redirects the light signal towards the holographic combiner effectively from a respective one of N virtual positions for the SLP. The holographic combiner converges the light signal to a particular one of N exit pupils at the eye of the user based on the particular virtual position from which the light signal is made to effectively originate. In this way, multiple instances of the exit pupil are distributed over the eye and the eyebox of the WHUD is expanded.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: January 29, 2019
    Assignee: NORTH INC.
    Inventors: Stefan Alexander, Matthew Bailey, Vance R. Morrison, Lloyd Frederick Holland
  • Patent number: 10193879
    Abstract: A method and system for deploying applications. The method includes deploying an application image of an application to a computing device, where the application is accessible using a first uniform resource locator (URL). The method also includes sending an application creation message to an authoritative domain name system (DNS) server to create a record mapping the first URL to a second URL. The first URL is in a first domain and the second URL is in a second domain. The method further includes providing, to the computing device, a digital certificate associated with the application. The method further includes generating certificate data using the digital certificate and sending, to a remote application server, the second URL and certificate data. A client software module may establish a connection to the application on the computing device using the second URL and the certificate data.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: January 29, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Robert Stephen Rodgers, William Norman Eatherton, Michael John Beesley, Stefan Alexander Dyckerhoff, Philippe Gilbert Lacroute, Edward Ronald Swierk, Neil Vincent Geraghty, Keith Eric Holleman, Thomas John Giuli, Srivatsan Rajagopal, Paul Edward Fraley, Vijay Krishnaji Tapaskar, Daniel Sergeevich Selifonov, Keith Anthony Low
  • Patent number: 10180578
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. At least one narrow waveband laser diode is used in an SLP to define one or more portion(s) of a visible image. At least one corresponding narrow waveband photodetector is aligned to detect reflections of the portion(s) of the image from features of the eye. A holographic optical element (“HOE”) may be used to combine the image and environmental light into the user's “field of view.” Three narrow waveband photodetectors each responsive to a respective one of three narrow wavebands output by the RGB laser diodes of an RGB SLP are aligned to detect reflections of a projected RGB image from features of the eye.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 15, 2019
    Assignee: NORTH INC.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Publication number: 20190013997
    Abstract: A method for determining degradation in performance of an electronic device connected to a communication network for an aerial vehicle includes monitoring, by one or more computing device(s), communications on the communication network during a validation period. The method further includes generating, by the computing device(s), a baseline operating profile of the electronic device based, at least in part, on the communications monitored during the validation period. In addition, the method includes monitoring, by the computing device(s), communications on the communication network during a post-validation period. The method further includes determining, by the computing device(s), a present operating profile of the electronic device based, at least in part, on the communications monitored during the post-validation period.
    Type: Application
    Filed: June 13, 2018
    Publication date: January 10, 2019
    Inventors: Stefan Alexander SCHWINDT, Barry FOYE
  • Publication number: 20190014041
    Abstract: A network switch for auditing communications on a deterministic network includes one or more computing device(s) configured to receive a data packet comprising at least a source address and a destination address. The computing device(s) can determine whether the source address corresponds to a first electronic device on the deterministic network. In addition, the computing device(s) can determine whether the destination address corresponds to a second electronic device on the deterministic network. When the source address corresponds to the first electronic device and the destination address corresponds to the second electronic device, the computing device(s) can compare an actual value for a characteristic of the data packet against a reference value for the characteristic. When the actual value for the characteristic corresponds to the reference value for the characteristic, the computing device(s) can transmit the data packet to the destination address.
    Type: Application
    Filed: May 30, 2018
    Publication date: January 10, 2019
    Inventor: Stefan Alexander SCHWINDT
  • Patent number: 10175488
    Abstract: Systems, devices, and methods for spatial multiplexing in holographic optical elements (“HOEs”) are described. A spatially-multiplexed HOE includes multiple spatially-separated holographic regions and each spatially-separated region applies a respective optical function to light that is incident thereon. An exemplary application as a spatially-multiplexed holographic combiner (“SMHC”) in a scanning laser-based wearable heads-up display (“WHUD”) is described. In this exemplary application, a scanning laser projector directs multiple light signals over the area of the SMHC and the SMHC converges the light signals towards multiple spatially-separated exit pupils at or proximate the eye of the user. The particular exit pupil at the eye of the user towards which any particular light signal is converged by the SMHC depends on the particular region of the SMHC upon which the light signal is incident.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: January 8, 2019
    Assignee: NORTH INC.
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Publication number: 20190004323
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 3, 2019
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Publication number: 20190004322
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. At least one narrow waveband laser diode is used in an SLP to define one or more portion(s) of a visible image. At least one corresponding narrow waveband photodetector is aligned to detect reflections of the portion(s) of the image from features of the eye. A holographic optical element (“HOE”) may be used to combine the image and environmental light into the user's “field of view.” Three narrow waveband photodetectors each responsive to a respective one of three narrow wavebands output by the RGB laser diodes of an RGB SLP are aligned to detect reflections of a projected RGB image from features of the eye.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 3, 2019
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10171401
    Abstract: Enhancing and personalizing an electronic message with related and relevant information based on context of the message and recipients of the message is provided. A mailbox delivery agent receives an electronic message addressed to a recipient, extracts context data from the electronic message, queries an information source for information related to the context data and relevant to the recipient user, receives a response including information related to the context data and relevant to the recipient user, and generates and appends one or more information elements representative of the information related to the context data and relevant to the recipient user to the electronic message.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: January 1, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Omar Faruk, Sangram Jyoti Bal, Azmil Macksood, Rezaul Hoque, Stefan Alexander Ashall, Vincent Olislagers
  • Publication number: 20180373044
    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.
    Type: Application
    Filed: June 27, 2018
    Publication date: December 27, 2018
    Inventors: Stefan Alexander, Douglas Raymond Dykaar, John Otto Vieth, Timothy Paul Bodiya
  • Publication number: 20180372935
    Abstract: Systems, devices, and methods for making and using curved holographic optical elements (“HOEs”) are described. A hologram to apply a first optical power to playback light may be embedded in an internal volume of a curved lens, where the curved lens has a first curvature to apply a second optical power to the playback light and a second curvature opposite the first curvature to define the internal volume of the curved lens. The first optical power may be equal in magnitude and opposite in sign to the second optical power. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.
    Type: Application
    Filed: July 26, 2018
    Publication date: December 27, 2018
    Inventors: Stefan Alexander, Vance R. Morrison, Thomas Mahon
  • Publication number: 20180373043
    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.
    Type: Application
    Filed: June 27, 2018
    Publication date: December 27, 2018
    Inventors: Stefan Alexander, Douglas Raymond Dykaar, John Otto Vieth, Timothy Paul Bodiya
  • Publication number: 20180373045
    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.
    Type: Application
    Filed: June 27, 2018
    Publication date: December 27, 2018
    Inventors: Stefan Alexander, Douglas Raymond Dykaar, John Otto Vieth, Timothy Paul Bodiya
  • Publication number: 20180373046
    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.
    Type: Application
    Filed: June 27, 2018
    Publication date: December 27, 2018
    Inventors: Stefan Alexander, Douglas Raymond Dykaar, John Otto Vieth, Timothy Paul Bodiya
  • Publication number: 20180364706
    Abstract: One example aspect of the present disclosure relates to a method. The method can include determining, by one or more autonomous distress tracking (ADT) devices installed in a designated fire zone, a state of the vehicle. When the state of the vehicle is the normal state, the method can include transmitting first data via a first transmitter at a first interval, wherein the first transmitter is configured to transmit messages over a frequency band used for normal communications. When the state of the vehicle is the possible distress state, the method can include transmitting second data via the first transmitter at a second interval. When the state of the vehicle is the distress state, the method can include transmitting third data continuously via a second transmitter, wherein the second transmitter is configured to transmit messages over a frequency band reserved for emergency communications.
    Type: Application
    Filed: May 14, 2018
    Publication date: December 20, 2018
    Inventor: Stefan Alexander SCHWINDT
  • Publication number: 20180348527
    Abstract: Systems, devices, and methods that implement waveguides in curved transparent combiners that are well-suited for use in wearable heads-up displays (WHUDs) are described. Curved transparent combiners employ an optical lens or optical lens blank with a waveguide or light guide embedded therein and with low refractive index materials interposed between one or more major surfaces of the waveguide and the optical lens or blank to facilitate total internal reflection while the waveguide is embedded in the lens. The curved transparent combiners may optionally include in-couplers and/or out-couplers to provide transparent combiners that substantially match a shape, size, and geometry of conventional eyeglass lenses and can, in some implementations, embody prescription curvatures to serve as prescription eyeglass lenses. The waveguides and in-/out-couplers are planar or curved depending on the implementation. WHUDs that employ such curved transparent combiners are also described.
    Type: Application
    Filed: August 7, 2018
    Publication date: December 6, 2018
    Inventors: Shreyas Potnis, Timothy Paul Bodiya, Stefan Alexander
  • Publication number: 20180348528
    Abstract: Systems, devices, and methods that implement waveguides in curved transparent combiners that are well-suited for use in wearable heads-up displays (WHUDs) are described. Curved transparent combiners employ an optical lens or optical lens blank with a waveguide or light guide embedded therein and with low refractive index materials interposed between one or more major surfaces of the waveguide and the optical lens or blank to facilitate total internal reflection while the waveguide is embedded in the lens. The curved transparent combiners may optionally include in-couplers and/or out-couplers to provide transparent combiners that substantially match a shape, size, and geometry of conventional eyeglass lenses and can, in some implementations, embody prescription curvatures to serve as prescription eyeglass lenses. The waveguides and in-/out-couplers are planar or curved depending on the implementation. WHUDs that employ such curved transparent combiners are also described.
    Type: Application
    Filed: August 7, 2018
    Publication date: December 6, 2018
    Inventors: Shreyas Potnis, Timothy Paul Bodiya, Stefan Alexander
  • Publication number: 20180348526
    Abstract: Systems, devices, and methods that implement waveguides in curved transparent combiners that are well-suited for use in wearable heads-up displays (WHUDs) are described. Curved transparent combiners employ an optical lens or optical lens blank with a waveguide or light guide embedded therein and with low refractive index materials interposed between one or more major surfaces of the waveguide and the optical lens or blank to facilitate total internal reflection while the waveguide is embedded in the lens. The curved transparent combiners may optionally include in-couplers and/or out-couplers to provide transparent combiners that substantially match a shape, size, and geometry of conventional eyeglass lenses and can, in some implementations, embody prescription curvatures to serve as prescription eyeglass lenses. The waveguides and in-/out-couplers are planar or curved depending on the implementation. WHUDs that employ such curved transparent combiners are also described.
    Type: Application
    Filed: August 7, 2018
    Publication date: December 6, 2018
    Inventors: Shreyas Potnis, Timothy Paul Bodiya, Stefan Alexander
  • Patent number: 10146863
    Abstract: Item classification rules are created based on examples selected by a user, such as by selecting a subset of emails, and the rule is used across a larger set of items to obtain automatic classification of similar items according to the rule. Based on an analysis, a candidate classification rule is generated identifying text-based features shared among the items of the subset. The user can review the candidate rule as well as a resultant subset of items generated by the rule, and either accept the candidate rule or make an adjustment to the examples and then perform one or more iterations of the analysis to refine the rule. Adjustments can be made by removing items incorrectly included in a resultant subset and/or adding items incorrectly excluded from a resultant subset, and using the adjusted subset in a next iteration.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: December 4, 2018
    Assignee: GetGo, Inc.
    Inventors: Ashish V. Thapliyal, Anne Marie Lock, Elizabeth Thapliyal, Ryan W. Kasper, Stefan Alexander von Imhof
  • Patent number: 10139633
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: November 27, 2018
    Assignee: THALMIC LABS INC.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon