Patents by Inventor John Sweetser

John Sweetser 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: 10656511
    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: May 19, 2020
    Assignee: Intel Corporation
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Akihiro Takagi, Paul Winer, John Woodfill
  • Publication number: 20200004126
    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.
    Type: Application
    Filed: May 3, 2019
    Publication date: January 2, 2020
    Applicant: Intel Corporation
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Akihiro Takagi, Paul Winer, John Woodfill
  • Patent number: 10310362
    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 4, 2019
    Assignee: Intel Corporation
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Akihiro Takagi, Paul Winer, John Woodfill
  • Publication number: 20190041736
    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.
    Type: Application
    Filed: June 29, 2018
    Publication date: February 7, 2019
    Applicant: Intel Corporation
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Akihiro Takagi, Paul Winer, John Woodfill
  • Patent number: 9176598
    Abstract: According to one embodiment, a system includes a handheld device having a pixelated sensor, an optical filter for passing a predetermined frequency band of radiation to the sensor and a transmitter, an electronic equipment having a display, and at least two spaced-apart markers, where each of which are positioned proximate to the display. The markers provide radiation at the frequency band passed by the optical filter. The handheld device includes a processor coupled to receive image data of the markers from the sensor for computing coordinate data from the image data. The coordinate data requires less data than the image data. The processor is coupled to the transmitter to transmit the coordinate data to the electronic equipment. Other methods and apparatuses are also described.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: November 3, 2015
    Assignee: ThinkOptics, Inc.
    Inventors: John Sweetser, Anders Grunnet-Jepsen
  • Patent number: 8913003
    Abstract: Methods and apparatuses for a free-space multi-dimensional absolute pointer using a projection marker system are described herein. In one embodiment, a presentation system includes, but is not limited to, a projection-based marker apparatus to project one or more optical spots on a display surface for displaying machine generated content capable of being manipulated via a cursor of a pointing device, a handheld device to wirelessly capture the projected optical spots from the display surface, and a control unit communicatively coupled to the projection-based marker apparatus and the handheld device to determine coordinates of the cursor based on characteristics of the captured light spots. Other methods and apparatuses are also described.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: December 16, 2014
    Assignee: Thinkoptics, Inc.
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Kenneth Salsman
  • Patent number: 8907889
    Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: December 9, 2014
    Assignee: ThinkOptics, Inc.
    Inventors: John Sweetser, Anders Grunnet-Jepsen, Kenneth Salsman
  • Patent number: 8174497
    Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: May 8, 2012
    Assignee: ThinkOptics, Inc.
    Inventors: John Sweetser, Anders Grunnet-Jepsen, Kenneth Salsman
  • Patent number: 8098999
    Abstract: A tunable filter may be utilized to successively tune to different wavelengths. As each wavelength of the wavelength division multiplexed signal is extracted, it may be successively power monitored. Thus, power monitoring may done without requiring separate power monitors for each channel. This results in considerable advantages in some embodiments, including reduced size, reduced complexities in fabrication, and reduced yield issues in some embodiments.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: January 17, 2012
    Assignee: Intel Corporation
    Inventors: Ruolin Li, Anders Grunnet-Jepsen, John Sweetser, Ut Tran
  • Publication number: 20110095980
    Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.
    Type: Application
    Filed: January 3, 2011
    Publication date: April 28, 2011
    Inventors: John Sweetser, Anders Grunnet-Jepsen, Kenneth Salsman
  • Patent number: 7864159
    Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: January 4, 2011
    Assignee: Thinkoptics, Inc.
    Inventors: John Sweetser, Anders Grunnet-Jepsen, Kenneth Salsman
  • Patent number: 7852317
    Abstract: A method is described that involves detecting one or more images appearing on a pixilated sensor of respective one or more fixed markers. The pixilated sensor is within a handheld device. For each of the images, determining its location on the sensor with the handheld device's electronic circuitry. Translating the images' determined locations into a pointed to location on a display, or proximate to said display, wherein the handheld device transmits information derived from the determining.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: December 14, 2010
    Assignee: Thinkoptics, Inc.
    Inventors: Anders Grunnet-Jepsen, Kenneth Salsman, John Sweetser
  • Patent number: 7796116
    Abstract: An item of electronic equipment is described that includes a machine and executable program code. The executable program code is stored on a non volatile memory. The executable program code is to be executed by the machine. The executable program code is to perform a method. The method is in relation to a location on a display, or proximate to the display, that is pointed to by a handheld device. The method includes executing at least one of the following methods: (i) displaying a cursor on said display at said location, said location on said display; (ii) highlighting a menu option on said display at said location, said location on said display; (iii) triggering action taken by said electronic equipment in response to said handheld device's sending of a signal to indicate said action is desired.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: September 14, 2010
    Assignee: Thinkoptics, Inc.
    Inventors: Kenneth Salsman, John Sweetser, Anders Grunnet-Jepsen
  • Patent number: 7532793
    Abstract: A planar light wave circuit may be formed with a pair of waveguides arranged in close proximity to one another. At least one of the waveguides may be segmented. Through segmentation, the average mode-field diameter may be adjusted. Controlling the average mode-field diameter enables precise control over the coupling characteristics.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: May 12, 2009
    Assignee: Intel Corporation
    Inventors: Anders Grunnet Jepsen, Craig Liddle, John Sweetser
  • Publication number: 20080278445
    Abstract: According to one embodiment, a system includes a handheld device having a pixelated sensor, an optical filter for passing a predetermined frequency band of radiation to the sensor and a transmitter, an electronic equipment having a display, and at least two spaced-apart markers, where each of which are positioned proximate to the display. The markers provide radiation at the frequency band passed by the optical filter. The handheld device includes a processor coupled to receive image data of the markers from the sensor for computing coordinate data from the image data. The coordinate data requires less data than the image data. The processor is coupled to the transmitter to transmit the coordinate data to the electronic equipment. Other methods and apparatuses are also described.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 13, 2008
    Applicant: THINKOPTICS, INC.
    Inventors: John Sweetser, Anders Grunnet-Jepsen
  • Patent number: 7095925
    Abstract: An optical phased array transmitter/receiver includes a plurality of waveguides each including an optical fiber and a light source coupled to the fibers in the waveguides. At least one grating is coupled to the fiber of each waveguide and at least one phase shifter coupled to the fiber of at least one waveguide. The phase shifter controls a phase profile of light passing through the fiber to control a profile of a laser beam reflected at the grating. The gratings reflect light passing through the fibers outside of the optical coder to form a laser beam shaped and directed by the grating and phase shifters. Further, a detector is coupled to the waveguides that is enabled to receive light reflected off the gratings. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: August 22, 2006
    Assignee: Intel Corporation
    Inventors: Anders Grunnet-Jepson, John Sweetser, Alan Johnson
  • Publication number: 20060152487
    Abstract: A method is described that involves detecting one or more images appearing on a pixilated sensor of respective one or more fixed markers. The pixilated sensor is within a handheld device. For each of the images, determining its location on the sensor with the handheld device's electronic circuitry. Translating the images' determined locations into a pointed to location on a display, or proximate to said display, wherein the handheld device transmits information derived from the determining.
    Type: Application
    Filed: July 21, 2005
    Publication date: July 13, 2006
    Inventors: Anders Grunnet-Jepsen, Kenneth Salsman, John Sweetser
  • Publication number: 20060152489
    Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.
    Type: Application
    Filed: July 21, 2005
    Publication date: July 13, 2006
    Inventors: John Sweetser, Anders Grunnet-Jepsen, Kenneth Salsman
  • Publication number: 20060152488
    Abstract: An item of electronic equipment is described that includes a machine and executable program code. The executable program code is stored on a non volatile memory. The executable program code is to be executed by the machine. The executable program code is to perform a method. The method is in relation to a location on a display, or proximate to the display, that is pointed to by a handheld device. The method includes executing at least one of the following methods: (i) displaying a cursor on said display at said location, said location on said display; (ii) highlighting a menu option on said display at said location, said location on said display; (iii) triggering action taken by said electronic equipment in response to said handheld device's sending of a signal to indicate said action is desired.
    Type: Application
    Filed: July 21, 2005
    Publication date: July 13, 2006
    Inventors: Kenneth Salsman, John Sweetser, Anders Grunnet-Jepsen
  • Publication number: 20060091305
    Abstract: An optical phased array transmitter/receiver includes a plurality of waveguides each including an optical fiber and a light source coupled to the fibers in the waveguides. At least one grating is coupled to the fiber of each waveguide and at least one phase shifter coupled to the fiber of at least one waveguide. The phase shifter controls a phase profile of light passing through the fiber to control a profile of a laser beam reflected at the grating. The gratings reflect light passing through the fibers outside of the optical coder to form a laser beam shaped and directed by the grating and phase shifters. Further, a detector is coupled to the waveguides that is enabled to receive light reflected off the gratings.
    Type: Application
    Filed: November 3, 2004
    Publication date: May 4, 2006
    Inventors: Anders Grunnet-Jepsen, John Sweetser, Alan Johnson