Patents by Inventor Roger Hajjar

Roger Hajjar 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: 20170186404
    Abstract: An image is displayed on an electronic display device at a reduced power level. Power used by the display device is maintained below a predetermined maximum power level by uniformly scaling the initial optical intensity of an image to a lower optical intensity whenever displaying the image at the initial optical intensity would result in power consumption of the display device exceeding the predetermined maximum power level.
    Type: Application
    Filed: March 14, 2017
    Publication date: June 29, 2017
    Inventors: Roger HAJJAR, Anand BUDNI
  • Patent number: 9676206
    Abstract: A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: June 13, 2017
    Assignee: PRYSM, INC.
    Inventors: Hanxiang Bai, Roger A. Hajjar
  • Patent number: 9607577
    Abstract: An image is displayed on an electronic display device at a reduced power level. Power used by the display device is maintained below a predetermined maximum power level by uniformly scaling the initial optical intensity of an image to a lower optical intensity whenever displaying the image at the initial optical intensity would result in power consumption of the display device exceeding the predetermined maximum power level.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: March 28, 2017
    Assignee: PRYSM, INC.
    Inventors: Roger Hajjar, Anand Budni
  • Publication number: 20170078632
    Abstract: Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 16, 2017
    Inventor: Roger A. HAJJAR
  • Publication number: 20170024181
    Abstract: In one embodiment, the modular display includes aggregates of individual panel tiles arranged between two large plastic sheets. The footprint of the large plastic sheet sandwich becomes the dimension of the display screen. The tilettes are phosphor emission panels with a full complement of emittable pixels. By separating the tilettes from the final full dimension sheet, the tilettes can be manufactured in transportable sizes and the outer full dimension sheets can be rolled for easy transport to the final install location.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Inventors: Roger A. HAJJAR, John L. RITTER, David KINDLER, Jahja I. TRISNADI
  • Patent number: 9532016
    Abstract: Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: December 27, 2016
    Assignee: PRYSM, INC.
    Inventor: Roger A. Hajjar
  • Patent number: 9525850
    Abstract: Display devices and systems including television sets, and systems, apparatus and methods for delivering information and providing services through display devices and systems. The display used in the described systems and methods is capable of receiving one or more TV programming channels and an independent designated application channel and having at least a first display window and a second display window separated from each other without spatial overlap on the screen. The information sent over the designated application channel to the display is displayed on the first display window while simultaneously displaying one of the TV programming channels on the second display window. A viewer control mechanism is provided in the display to allow the viewer to switch the information received from the designated application channel from the first display window to the second display window and switch back at the viewer's choice.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: December 20, 2016
    Assignee: PRYSM, INC.
    Inventors: Amit Jain, Yatin Mundkur, Roger A. Hajjar
  • Publication number: 20160355024
    Abstract: A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
    Type: Application
    Filed: August 18, 2016
    Publication date: December 8, 2016
    Inventors: Hanxiang BAI, Roger A. HAJJAR
  • Patent number: 9469080
    Abstract: In one embodiment, the modular display includes aggregates of individual panel tiles arranged between two large plastic sheets. The footprint of the large plastic sheet sandwich becomes the dimension of the display screen. The tilettes are phosphor emission panels with a full complement of emittable pixels. By separating the tilettes from the final full dimension sheet, the tilettes can be manufactured in transportable sizes and the outer full dimension sheets can be rolled for easy transport to the final install location.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 18, 2016
    Assignee: PRYSM, INC.
    Inventors: Roger A. Hajjar, John L. Ritter, David Kindler, Jahja I. Trisnadi
  • Patent number: 9467668
    Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: October 11, 2016
    Assignee: Prysm, Inc.
    Inventor: Roger A. Hajjar
  • Patent number: 9440451
    Abstract: A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: September 13, 2016
    Assignee: PRYSM, Inc.
    Inventors: Hanxiang Bai, Roger A. Hajjar
  • Publication number: 20160191870
    Abstract: A scanning beam display system includes an optical module, an image control module, and a display screen on which optical beams are scanned. The optical module includes a vertical adjuster placed in the optical paths of the beams to control and adjust positions of the optical beams along a generally vertical direction on the display screen, and a control unit configured to receive control instructions for the vertical adjuster and to control the vertical adjuster to be at one of a predetermined number of orientations to place the scanning optical beams at a corresponding distinct position on the display screen. The control unit is further configured to apply an adjustment offset to each orientation of the vertical adjuster such that each immediately vertically adjacent pair of beam footprints projected on the display screen resulting from the plurality of positions have a vertical overlap that is larger than a first threshold.
    Type: Application
    Filed: December 24, 2014
    Publication date: June 30, 2016
    Inventors: Roger A. Hajjar, Victor A. Ruskovoloshin
  • Patent number: 9377673
    Abstract: An electronic display device provides closed-loop verification that specific content has been displayed by the display device. When desired digital image content is rendered as an image or video by the electronic display device, a confirmation signal is generated by one or more components of the display device to verify that the image content has been successfully displayed. The confirmation signal may include performance measurements of the one or more components of the display device and/or a signature output that is associated with a signature code embedded in the image content. The signature output uniquely identifies the digital image content.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: June 28, 2016
    Assignee: PRYSM, INC.
    Inventor: Roger A. Hajjar
  • Publication number: 20160119597
    Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
    Type: Application
    Filed: January 7, 2016
    Publication date: April 28, 2016
    Applicant: Prysm, Inc.
    Inventor: Roger A. Hajjar
  • Publication number: 20160112686
    Abstract: Systems and techniques for scanning-beam display are provided to use local dimming on the optical energy of at least one optical beam to minimize the non-uniform image brightness across the screen. This local dimming during the beam scanning can be achieved by adjusting optical energy of at least one optical beam during the scanning based on (1) the location of the scanning optical beam and (2) the predetermined distortion information at the location.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Inventor: Roger A. Hajjar
  • Patent number: 9304378
    Abstract: An electronic display device provides closed-loop verification that specific content has been displayed by the display device. When desired digital image content is rendered as an image or video by the electronic display device, a confirmation signal is generated by one or more components of the display device to verify that the image content has been successfully displayed. The confirmation signal may include performance measurements of the one or more components of the display device and/or a signature output that is associated with a signature code embedded in the image content. The signature output uniquely identifies the digital image content.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: April 5, 2016
    Assignee: PRYSM, INC.
    Inventor: Roger A. Hajjar
  • Patent number: 9291887
    Abstract: A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 22, 2016
    Assignee: PRYSM, INC.
    Inventor: Roger A. Hajjar
  • Publication number: 20150373311
    Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
    Type: Application
    Filed: April 22, 2015
    Publication date: December 24, 2015
    Inventor: Roger A. Hajjar
  • Patent number: 9217862
    Abstract: Systems and techniques for scanning-beam display are provided to use local dimming on the optical energy of at least one optical beam to minimize the non-uniform image brightness across the screen. This local dimming during the beam scanning can be achieved by adjusting optical energy of at least one optical beam during the scanning based on (1) the location of the scanning optical beam and (2) the predetermined distortion information at the location.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: December 22, 2015
    Assignee: Prysm, Inc.
    Inventor: Roger A. Hajjar
  • Publication number: 20150352859
    Abstract: A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 10, 2015
    Inventors: Hanxiang Bai, Roger A. Hajjar