Patents by Inventor John Marshall Ferri

John Marshall Ferri 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: 11454875
    Abstract: Described examples include a device having a prism cube having a first side and a second side opposite the first side, the prism cube configured to: receive light comprising a first color light and a second color light, direct the first color light to the first side of the prism cube, and direct the second color light to the second side of the prism cube.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: September 27, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Alexander Lyubarsky, Michael Terry Davis, John Marshall Ferri
  • Patent number: 11320728
    Abstract: In described examples, a projector includes a light source to produce first light of a first color. The projector also includes a phosphor to selectively receive the first light and produce second light of a second color in response to the first light. The projector also includes a dichroic mirror to pass a portion of the second light to produce a third light of a third color. The dichroic mirror reflects a portion of the second light as fourth light of a fourth color.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: May 3, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Gregory S. Pettitt, Michael Terry Davis, James Francis Hallas, John Marshall Ferri
  • Patent number: 11057595
    Abstract: Described examples include an optical device having a first light source configured to provide a first light having a first characteristic. The optical device also has a second light source configured to provide a second light having a second characteristic. The optical device also has a combiner configured to combine the first light and the second light to provide a combined light. The optical device also has a spatial light modulator configured to modulate the combined light to provide modulated combined light. The optical device also has a divider configured to receive the modulated combined light and to direct a first portion of the modulated combined light having the first characteristic to a first target and to direct a second portion of the modulated combined light having the second characteristic to a second target.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: July 6, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ganapathy Sivakumar, Zhongyan Sheng, Terry Alan Bartlett, John Marshall Ferri
  • Publication number: 20210157225
    Abstract: Described examples include a device having a prism cube having a first side and a second side opposite the first side, the prism cube configured to: receive light comprising a first color light and a second color light, direct the first color light to the first side of the prism cube, and direct the second color light to the second side of the prism cube.
    Type: Application
    Filed: November 25, 2020
    Publication date: May 27, 2021
    Inventors: Alexander Lyubarsky, Michael Terry Davis, John Marshall Ferri
  • Patent number: 10915010
    Abstract: Described examples include a projection system having projection optics with a projection optics axis tilted from an axis perpendicular to an image target, the projection optics configured to project an image. The projection system also having an image source, the image source configured to provide the image, the image source having an offset from the projection optics axis, a plane of the image source having an angle from perpendicular to the projection optics axis such that a projected image from the image source projected by the projection optics is focused onto the image target along an extent of the projected image.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: February 9, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Alexander Lyubarsky, John Marshall Ferri
  • Publication number: 20200260057
    Abstract: Described examples include an optical device having a first light source configured to provide a first light having a first characteristic. The optical device also has a second light source configured to provide a second light having a second characteristic. The optical device also has a combiner configured to combine the first light and the second light to provide a combined light. The optical device also has a spatial light modulator configured to modulate the combined light to provide modulated combined light. The optical device also has a divider configured to receive the modulated combined light and to direct a first portion of the modulated combined light having the first characteristic to a first target and to direct a second portion of the modulated combined light having the second characteristic to a second target.
    Type: Application
    Filed: October 11, 2019
    Publication date: August 13, 2020
    Inventors: Ganapathy Sivakumar, Zhongyan Sheng, Terry Alan Bartlett, John Marshall Ferri
  • Publication number: 20200004117
    Abstract: Described examples include a projection system having projection optics with a projection optics axis tilted from an axis perpendicular to an image target, the projection optics configured to project an image. The projection system also having an image source, the image source configured to provide the image, the image source having an offset from the projection optics axis, a plane of the image source having an angle from perpendicular to the projection optics axis such that a projected image from the image source projected by the projection optics is focused onto the image target along an extent of the projected image.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 2, 2020
    Inventors: Alexander Lyubarsky, John Marshall Ferri
  • Patent number: 10070106
    Abstract: In described examples, a method of creating multiple light images uses spatially-separated light sources, arranged in an array, operated in multiplexed fashion, for driving a spatial light modulator. Each of the light sources is time-sequenced to direct light at the spatial light modulator during a time interval. The spatial light modulator is synchronized with the light sources and controlled to produce a desired image during each time interval. The resulting images are received by an optical lens system to provide light images along an image plane. Alternately, the optical lens system focuses the modulated light images on a hogel plane to produce a light field. The pixel count of the spatial light modulator is effectively multiplied by the number of light sources.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 4, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: John Marshall Ferri, Gregory Scott Pettitt
  • Publication number: 20180239230
    Abstract: In described examples, a projector includes a light source to produce first light of a first color. The projector also includes a phosphor to selectively receive the first light and produce second light of a second color in response to the first light. The projector also includes a dichroic mirror to pass a portion of the second light to produce a third light of a third color. The dichroic mirror reflects a portion of the second light as fourth light of a fourth color.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Inventors: Gregory S. Pettitt, Michael Terry Davis, James Francis Hallas, John Marshall Ferri
  • Patent number: 9568816
    Abstract: A projector system with a single imaging array has a low-etendue light source. The projector system includes a first optical path from the low-etendue light source to a plurality of optical conversion media having a plurality of emission wavelengths to provide display light with wavelengths longer than blue light. The projector system includes a second optical path from the optical conversion media to the imaging array. The projector system has a means of moving an excitation location on the optical conversion media in the first optical path. The projector system may include a blue LED, a diffuser region, or an optical conversion medium with a blue emission wavelength to provide blue display light. Light from the low-etendue light source is prevented from directly impinging on the imaging array.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: February 14, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: John Marshall Ferri, Sajjad Ali Khan, Michael Terry Davis, Vikrant R. Bhakta
  • Publication number: 20160373701
    Abstract: In described examples, a method of creating multiple light images uses spatially-separated light sources, arranged in an array, operated in multiplexed fashion, for driving a spatial light modulator. Each of the light sources is time-sequenced to direct light at the spatial light modulator during a predetermined time interval. The spatial light modulator is synchronized with the light sources and controlled to produce a desired image during each time interval. The resulting images are received by an optical lens system to provide light images along an image plane. Alternately, the optical lens system focuses the modulated light images on a hogel plane to produce a light field. The pixel count of the spatial light modulator is effectively multiplied by the number of light sources. Each light source may sequentially provide multiple colors to produce a full-color image. The light source array may, in turn, be driven by one or more remotely-located master light sources.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Inventors: John Marshall Ferri, Gregory Scott Pettitt
  • Patent number: 9291819
    Abstract: Apparatus and methods are described for creating multiple different heads-up display (HUD) images at different apparent distances from a viewer using a single picture generator. First and second images are generated using respective first and second subsets of modulating elements of an array of image pixel modulating elements of a spatial light modulator. Light from the first and second images is directed along respective first and second optical paths onto a transparent display surface to form respective first and second virtual images at different apparent distances within a field of view of a viewer looking through the display surface. In a described example, the modulating elements are micromirrors of a digital micromirror device (DMD) and optical elements of the respective optical paths are relatively movable to set relative path lengths.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 22, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: John Marshall Ferri
  • Patent number: 9261764
    Abstract: A pixel array display system which has an illumination source with a plurality of emitters in a sparse array, collimators in front of the emitters, a condenser lens downstream of the collimators, an optical homogenizing element downstream from the condenser lens, a relay lens downstream from the optical homogenizing element, a pixel array downstream from the relay lens, a rear group of lens elements of a projection lens downstream from the pixel array, a polarization converter stack downstream from the rear group of lens elements and a front group of lens elements of the projection lens downstream from the polarization converter stack, so that light from the emitters is imaged onto input apertures of the polarization converter stack.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: February 16, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: John Marshall Ferri
  • Publication number: 20150146174
    Abstract: A projector system with a single imaging array has a low-etendue light source. The projector system includes a first optical path from the low-etendue light source to a plurality of optical conversion media having a plurality of emission wavelengths to provide display light with wavelengths longer than blue light. The projector system includes a second optical path from the optical conversion media to the imaging array. The projector system has a means of moving an excitation location on the optical conversion media in the first optical path. The projector system may include a blue LED, a diffuser region, or an optical conversion medium with a blue emission wavelength to provide blue display light. Light from the low-etendue light source is prevented from directly impinging on the imaging array.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 28, 2015
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: John Marshall Ferri, Sajjad Ali Khan, Michael Terry Davis, Vikrant R. Bhakta
  • Publication number: 20150061976
    Abstract: Apparatus and methods are described for creating multiple different heads-up display (HUD) images at different apparent distances from a viewer using a single picture generator. First and second images are generated using respective first and second subsets of modulating elements of an array of image pixel modulating elements of a spatial light modulator. Light from the first and second images is directed along respective first and second optical paths onto a transparent display surface to form respective first and second virtual images at different apparent distances within a field of view of a viewer looking through the display surface. In a described example, the modulating elements are micromirrors of a digital micromirror device (DMD) and optical elements of the respective optical paths are relatively movable to set relative path lengths.
    Type: Application
    Filed: December 18, 2013
    Publication date: March 5, 2015
    Applicant: Texas Instruments Incorporated
    Inventor: John Marshall Ferri
  • Publication number: 20130038838
    Abstract: A pixel array display system which has an illumination source with a plurality of emitters in a sparse array, collimators in front of the emitters, a condenser lens downstream of the collimators, an optical homogenizing element downstream from the condenser lens, a relay lens downstream from the optical homogenizing element, a pixel array downstream from the relay lens, a rear group of lens elements of a projection lens downstream from the pixel array, a polarization converter stack downstream from the rear group of lens elements and a front group of lens elements of the projection lens downstream from the polarization converter stack, so that light from the emitters is imaged onto input apertures of the polarization converter stack.
    Type: Application
    Filed: June 1, 2012
    Publication date: February 14, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: John Marshall Ferri