Patents by Inventor Miklos Stern

Miklos Stern 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).

  • Arrangement for and method of projecting an image with safety circuitry
    Publication number: 20070285625
    Abstract: Red, blue and green lasers respectively emit a plurality of red, blue and green laser beams having respective output powers. The beams are optically focused and collinearly arranged to form a composite beam which is swept by a pair of scan mirrors in a pattern of scan lines on a projection surface, each scan line having a number of pixels. A controller causes selected pixels to be illuminated, and rendered visible, by the composite beam to produce an image. A safety circuit detects a malfunction of at least one of the lasers and the scan mirrors, and deenergizes the at least one of the lasers and the scan mirrors upon detection of the malfunction.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 13, 2007
    Inventors: Dmitriy Yavid, Miklos Stern, Thomas Mazz, Costanzo Difazio, Chinh Tan, Carl Wittenberg, Daniel Gonzalez
  • Arrangement for and method of projecting an image with modulated lasers
    Publication number: 20070279509
    Abstract: An acousto-optical modulator modulates a green laser beam, and generates a modulated non-diffracted beam and a modulated diffracted beam. A scanner sweeps the modulated diffracted green beam, as well as modulated red and blue beams, as a pattern of scan lines, each scan line having a number of pixels. A controller causes selected pixels along the scan lines to be illuminated, and rendered visible, by the diffracted green beam, the red beam and the blue beam to produce the image. The non-diffracted green beam is employed in a laser shut-down safety circuit.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 6, 2007
    Inventors: Chinh Tan, Miklos Stern, Dmitriy Yavid, Askold Strat, Frederick F. Wood, Michael Slutsky, Richard Rizza, Carl Wittenberg
  • Arrangement for and method of projecting an image to be viewed over extended viewing range
    Publication number: 20070279536
    Abstract: A laser beam is swept by a scan mirror as a pattern of scan lines on a projection surface. Selected pixels arranged along each scan line are illuminated to produce an image. The laser beam is optically modified to form each scan line with a desired high resolution having no less than a desired large number of the pixels over an extended viewing range, by focusing the laser beam to form a beam waist having a scan dimension proportional to the resolution at a focal location positioned between the scan mirror and the projection surface.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 6, 2007
    Inventors: Chinh Tan, Dmitriy Yavid, Miklos Stern
  • Image projection with reduced speckle noise
    Patent number: 7304795
    Abstract: An image projection module within a housing is operative for causing selected pixels in a raster pattern to be illuminated to produce an image on a display screen of VGA quality. The screen is modified and/or the bandwidth of a laser is increased, to reduce speckle noise in the image.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: December 4, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Dmitriy Yavid, Miklos Stern
  • Method and apparatus for controllably compensating for distortions in a laser projection display
    Patent number: 7304619
    Abstract: A method and apparatus are provided to controllably compensate for distortions in an image produced by an LPD, where the distortion arises from the shape and/or angle of the viewing surface relative to the LPD. For example, the LPD can determine the angle of the viewing surface relative to the LPD and then adjust the horizontal and vertical scan mechanisms to return the image to its original configuration, such as rectangular.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: December 4, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Carl Wittenberg, Paul Dvorkis, Ron Goldman, Joseph Katz, Narayan Nambudiri, Miklos Stern, Chinh Tan, Frederick F. Wood, Dmitriy Yavid
  • Arrangement for, and method of, increasing brightness of a projected image with drive-assisted flyback
    Publication number: 20070273843
    Abstract: A drive-assisted scan mirror reduces flyback time in a lightweight, compact image projection module operative for causing selected pixels in a raster pattern to be illuminated to produce a non-distorted image of increased brightness and in color.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventors: Miklos Stern, Dmitriy Yavid
  • Method and apparatus for capturing images using a color laser projection display
    Patent number: 7302174
    Abstract: A method and apparatus are provided to capture images using a laser projection display (LPD). In a full color LPD camera, three lasers (red, blue, and green) are deployed to scan an image and receive reflected laser light therefrom. The reflected laser light may be analyzed and assembled into a picture. The LPD may also be used to display the picture, to operate as a viewfinder, to print the picture, to operate as a range finder, and the like.
    Type: Grant
    Filed: May 31, 2004
    Date of Patent: November 27, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Chinh Tan, Paul Dvorkis, Ron Goldman, Narayan Nambudiri, Carl Wittenberg, Miklos Stern, Dmitriy Yavid, Frederick F. Wood
  • Method and apparatus for aligning a plurality of lasers in an electronic display device
    Patent number: 7273281
    Abstract: A method and apparatus are provided to compensate for variations in the alignment of a plurality of lasers 102, 104, 106. A controller 142 varies the time at which the lasers 102, 104, 106 are energized so that the laser light emitted therefrom is reflected from a scanning mirror 118 at varying times so that each of the beams of light is reflected along a substantially common path and delivered to a substantially common point.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: September 25, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Miklos Stern, Paul Dvorkis, Narayan Nambudiri, Carl Wittenberg, Chinh Tan, Ron Goldman, Dmitriy Yavid, Frederick F. Wood
  • Arrangement for and method of improving image quality, especially for image projection arrangements
    Publication number: 20070201120
    Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The brightness of the illuminated pixels is enhanced by combining constituent laser beams of the same wavelength. The contrast of the illuminated pixels is improved by sweeping a composite beam across a polarized screen, and by making the polarizations of all the constituent laser beams of the composite beam the same.
    Type: Application
    Filed: April 25, 2007
    Publication date: August 30, 2007
    Inventors: Chinh Tan, Miklos Stern
  • Monitoring light beam position in electro-optical readers and image projectors
    Publication number: 20070181688
    Abstract: An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.
    Type: Application
    Filed: November 6, 2006
    Publication date: August 9, 2007
    Inventors: Yajun Li, Paul Dvorkis, Dmitriy Yavid, Frederick Wood, Miklos Stern, Edward Barkan, Narayan Nambudri
  • Integrated scanner on a common substrate
    Patent number: 7225987
    Abstract: An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand a laser beam deflected by the micro-machined mirror. The scanner may also scan a barcode without using a micro-machined mirror by rotating the laser diode.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: June 5, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Jerome Swartz, Miklos Stern, Joseph Katz, Yajun Li
  • Color laser projection display
    Publication number: 20070097335
    Abstract: A method and apparatus are provided to provide a laser projection display (LPD).
    Type: Application
    Filed: October 18, 2006
    Publication date: May 3, 2007
    Inventors: Paul Dvorkis, Ron Goldman, Narayan Nambudiri, Carl Wittenberg, Chinh Tan, Miklos Stern, Dmitriy Yavid, Frederick Wood
  • Color image projection system and method
    Publication number: 20070097501
    Abstract: An image projection system projects an image on a projection screen having phosphor particles for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The phosphor particles are bound in a binding material whose index of refraction matches the index of refraction of the phosphor particles to reduce back scattering of light.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventors: Miklos Stern, Dmitriy Yavid
  • Image projection screen with reduced speckle noise
    Patent number: 7199933
    Abstract: An image projection module within a housing is operative for causing selected pixels in a raster pattern to be illuminated to produce an image on a display screen of VGA quality. The screen is provided with an array of lenslets to reduce speckle noise in the image.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: April 3, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Dmitriy Yavid, Miklos Stern
  • Color image projection arrangement and method employing electro-absorption modulated green laser system
    Publication number: 20070070309
    Abstract: A lightweight, compact image projection module is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. An electro-absorption modulated green laser system is employed for energy efficiency and to reduce size and weight of the module.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 29, 2007
    Inventor: Miklos Stern
  • Monitoring light beam position in electro-optical readers and image projectors
    Patent number: 7182263
    Abstract: An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: February 27, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Yajun Li, Paul Dvorkis, Dmitriy Yavid, Frederick F. Wood, Miklos Stern, Edward Barkan, Narayan Nambudri
  • Method and apparatus for providing an interface between a liquid crystal display controller and a laser projection display
    Patent number: 7163294
    Abstract: An apparatus is provided for controlling a laser projection device (LPD). The apparatus is comprised of a liquid crystal display controller, a laser projection display controller, and a laser projection display engine. The liquid crystal display controller is adapted to receive video signals indicative of a visual display and convert the video signals to control signals suitable for controlling a liquid crystal display panel. The laser projection device controller is adapted to receive the control signals from the liquid crystal display controller and use the control signals to control a laser projection display. The laser projection device engine is adapted to display an image under the control of the laser projection device controller.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: January 16, 2007
    Assignee: Symbol Technologies, Inc.
    Inventors: Narayan Nambudiri, Paul Dvorkis, Ron Goldman, Carl Wittenberg, Chinh Tan, Miklos Stern, Dmitriy Yavid, Frederick F. Wood
  • Arrangement for and method of projecting an image with linear scan lines
    Publication number: 20060279664
    Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for sweeping a composite laser beam as a pattern of linear scan lines on a planar projection surface and for causing selected pixels arranged along each linear scan line to be illuminated to produce an image of high quality and in color.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 14, 2006
    Inventors: Chinh Tan, Frederick Wood, Miklos Stern
  • Image projection screen with reduced speckle noise
    Publication number: 20060262409
    Abstract: An image projection module within a housing is operative for causing selected pixels in a raster pattern to be illuminated to produce an image on a display screen of VGA quality. The screen is provided with an array of lenslets to reduce speckle noise in the image.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 23, 2006
    Inventors: Dmitriy Yavid, Miklos Stern
  • Arrangement for and method of improving image quality, especially for image projection arrangements
    Publication number: 20060262371
    Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The brightness of the illuminated pixels is enhanced by combining constituent laser beams of the same wavelength. The contrast of the illuminated pixels is improved by sweeping a composite beam across a polarized screen, and by making the polarizations of all the constituent laser beams of the composite beam the same.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 23, 2006
    Inventors: Chinh Tan, Miklos Stern