Patents by Inventor Samuel Z. Zhou

Samuel Z. Zhou 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).

  • Digital projection equipment and techniques
    Patent number: 7224411
    Abstract: Apparatus and techniques for enhancing characteristics of electronic projection systems are detailed. Included among the techniques are both superimposition of sub-images and tiling of superimposed images, the combination of which can be advantageous in improving resolution of projected images. Pre-modulators and polarizing beam splitters also may be used as parts of the innovative systems.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 29, 2007
    Assignee: Imax Corporation
    Inventors: Michael A. Gibbon, Samuel Z. Zhou, Graham H. Moss, Dermot J. Quinn, Steven Wilding, Brian Eckersley, Sean Adkins, Sergei G. Anikitchev, Steven Read
  • Equipment and techniques for increasing the dynamic range of a projection system
    Patent number: 7050122
    Abstract: Apparatus and techniques for enhancing the dynamic range of electronic projection systems are detailed. Included among the techniques are pre-modulation, luminance compensation, and partial luminance compensation.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: May 23, 2006
    Assignee: Imax Corporation
    Inventors: Michael A. Gibbon, Samuel Z. Zhou, Sean Adkins, Sergei G. Anikitchev, Graham H. Moss, Brian Eckersley
  • Processing techniques for superimposing images for image projection
    Patent number: 6751006
    Abstract: Addressed herein are techniques and equipment for pre-processing digital images to be superimposed for display. Filtering, re-sampling, and decimation are variously used to process images and sub-images to produce to-be-superimposed images. One of the described techniques is designed primarily (although not necessarily exclusively) for computational efficiency, while the other sacrifices some computational efficiency for higher quality of output images.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: June 15, 2004
    Assignee: Imax Corporation
    Inventors: Samuel Z. Zhou, Sean Adkins
  • Processing techniques for superimposing images for image projection
    Publication number: 20040032419
    Abstract: Addressed herein are techniques and equipment for pre-processing digital images to be superimposed for display. Filtering, re-sampling, and decimation are variously used to process images and sub-images to produce to-be-superimposed images. One of the described techniques is designed primarily (although not necessarily exclusively) for computational efficiency, while the other sacrifices some computational efficiency for higher quality of output images.
    Type: Application
    Filed: December 19, 2002
    Publication date: February 19, 2004
    Inventors: Samuel Z. Zhou, Sean Adkins
  • Equipment and techniques for increasing the dynamic range of a projection system
    Publication number: 20040001184
    Abstract: Apparatus and techniques for enhancing the dynamic range of electronic projection systems are detailed. Included among the techniques are pre-modulation, luminance compensation, and partial luminance compensation.
    Type: Application
    Filed: December 19, 2002
    Publication date: January 1, 2004
    Inventors: Michael A Gibbons, Samuel Z Zhou, Sean Adkins, Sergei G Anikitchev, Graham H Moss, Brian Eckersley
  • Digital projection equipment and techniques
    Publication number: 20030063226
    Abstract: Apparatus and techniques for enhancing characteristics of electronic projection systems are detailed. Included among the techniques are both superimposition of sub-images and tiling of superimposed images, the combination of which can be advantageous in improving resolution of projected images. Pre-modulators and polarizing beam splitters also may be used as parts of the innovative systems.
    Type: Application
    Filed: November 28, 2001
    Publication date: April 3, 2003
    Inventors: Michael A. Gibbon, Samuel Z. Zhou, Graham H. Moss, Dermot J. Quinn, Steven Wilding, Brian Eckersley, Sean Adkins, Sergei G. Anikitchev, Steven Read
  • Methods and apparatuses for superimposition of images
    Publication number: 20030020809
    Abstract: In one embodiment of this invention, two sub-images for superimposition are created using a single spatial light modulator. A first sub-image is projected with the SLM at a first position and, during the same frame, a second sub-image is projected using the same SLM at a second position. In another embodiment, high resolution, stereoscopic images are created using the principle of temporal superimposition and an electronic projection system having a minimum of low resolution SLMs. The invention alternately projects off-set image sub-fields to cach eye, which are then combined by the human visual system into a single, integrated high resolution image. The human visual system similarly integrates the separate left and right eye images into a single, three dimensional image.
    Type: Application
    Filed: September 3, 2002
    Publication date: January 30, 2003
    Inventors: Michael A Gibbon, Steven Read, Samuel Z Zhou