Patents Assigned to InFocus Corporation
  • Patent number: 7520622
    Abstract: An apparatus for a display dock with an integrated display screen are disclosed herein.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: April 21, 2009
    Assignee: Infocus Corporation
    Inventor: Jeffrey A. Gohman
  • Patent number: 7517092
    Abstract: A light filter for use in an optical system for displaying image. The light filter comprising, a substantially transparent substrate and an optical coating applied to the substrate. The optical coating is applied to the substrate such that a percentage of light being directed through the filter that is attenuated varies based on a position on the substrate on which the light impinges.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: April 14, 2009
    Assignee: InFocus Corporation
    Inventor: T. Scott Engle
  • Patent number: 7513628
    Abstract: An apparatus, system, and method for a projection device having a camera to provide for adjustments based at least in part on a series of captured images are disclosed herein.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: April 7, 2009
    Assignee: Infocus Corporation
    Inventor: Maarten Niesten
  • Publication number: 20090073687
    Abstract: A display device for increasing brightness of an image generation, including a color cluster system, is provided. The system includes a first color LED cluster having at least a first LED of a first wavelength within a first color range and a second LED of a second different wavelength within the first color range. The light from the first LED may be combined at least partially with light from the second LED The system further comprises a second color LED cluster having at least a first LED of a first wavelength within a second color range and a second LED of a second different wavelength within the second color range. In the second color LED cluster, the light from the first LED may be combined at least partially with light from the second LED.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 19, 2009
    Applicant: INFOCUS CORPORATION
    Inventor: David Kerry Kiser
  • Publication number: 20090059181
    Abstract: A particle-containment shield is provided. The particles-containment shield includes a containment structure that defines an air inlet to receive air heated by a projection lamp from the outlet of the projection-lamp module and defines an air outlet to vent air heated by the projection lamp away from the projection lamp. The containment structure is sealed intermediate the air inlet and the air outlet such that air heated by the projection lamp that enters through the air inlet exits the containment structure through the air outlet. The containment structure defines a length, a width, and a height of the particle-containment shield. The particle-containment shield includes one or more deflection members is arranged in the containment structure to collectively block all straight line paths from the air inlet to the air outlet so as to inhibit projection lamp particles from exiting the air outlet upon projection lamp rupture.
    Type: Application
    Filed: June 27, 2008
    Publication date: March 5, 2009
    Applicant: INFOCUS CORPORATION
    Inventors: Dan Loomis, Brian Patterson
  • Patent number: 7495829
    Abstract: An apparatus, system, and method for a dual front/rear projection screen having a first exterior surface and a second exterior surface are disclosed herein. The second exterior surface may be shaped to facilitate transmission and reflection of a portion of light and enable viewing an image from both sides of the projection screen.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: February 24, 2009
    Assignee: Infocus Corporation
    Inventors: Mark D. Peterson, Kyle Ranson
  • Patent number: 7483583
    Abstract: A method of transmitting a plurality of frames of image data over a communications channel from a display image source to a display device is disclosed, wherein the plurality of frames of image data are transferred on a frame-by-frame basis at a predetermined time interval. The method includes encoding at least a portion of a selected frame of image data via hierarchical encoding to form a hierarchically encoded set of image data layers, and sending only a subset of the set of image data layers over the communications channel, wherein the subset of image data layers includes fewer image data layers than the set of image data layers.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: January 27, 2009
    Assignee: InFocus Corporation
    Inventor: Jeff Glickman
  • Publication number: 20090001991
    Abstract: A projector lamp electronic test circuit is provided. The test circuit includes an electrical connector configured to be operatively coupled to a lamp of a projection unit under test, a converter configured to receive a test charge to be sent to the lamp from an alternating current power source, the converter configured to convert the test charge from alternating current to direct current, and an autotransformer operatively coupled to the converter, the autotransformer configured to regulate a voltage of the test charge, the voltage being suitably high enough to cause failure of the lamp.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 1, 2009
    Applicant: INFOCUS CORPORATION
    Inventors: David Koll, Tom Else
  • Publication number: 20080314514
    Abstract: An apparatus, system, and method for a front-projection screen having a subsurface diffusion target are disclosed herein.
    Type: Application
    Filed: August 28, 2008
    Publication date: December 25, 2008
    Applicant: INFOCUS CORPORATION
    Inventor: Mark D. Peterson
  • Publication number: 20080309246
    Abstract: A projector device employing ballast with a flyback converter is disclosed. For example, one embodiment comprises a lamp driver circuit including a power stage circuit including a flyback converter to output a direct current signal to a bridge circuit, the bridge circuit to reconstruct the direct current signal to an alternating current signal, a control circuit coupled with the power stage circuit and the bridge circuit, the control circuit to receive the direct current signal from the power stage circuit and to provide a frequency control signal to the bridge circuit, and a lamp igniter circuit comprising at least one charge pump and being coupled with the bridge circuit, wherein in response to the frequency control signal being provided to the bridge circuit, the bridge circuit is configured to increase the voltage of the alternating current signal provided to the lamp igniter circuit to power the lamp igniter circuit.
    Type: Application
    Filed: June 14, 2008
    Publication date: December 18, 2008
    Applicant: INFOCUS CORPORATION
    Inventor: Henry F. Pruett
  • Patent number: 7452085
    Abstract: An apparatus, system, and method for a fold-mirror assembly with a dynamically adjustable mirror element for use in a projection device are disclosed herein.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 18, 2008
    Assignee: Infocus Corporation
    Inventors: Karl Andersen, Michael Försth
  • Publication number: 20080273127
    Abstract: Systems for retaining a replaceable part within an image display device are provided herein. One example includes a first retaining member with a first looped retention arm configured to apply a retaining force in an x-direction to the replaceable part and a second retaining member with a second looped retention arm configured to apply a retaining force in a y-direction to the replaceable part. Upon displacement of the replaceable part from an engagement position to a displacement position, a normal force as applied by one of the first retaining member and the second retaining member is reduced and the force to push the replaceable part towards the engagement position is increased.
    Type: Application
    Filed: May 3, 2008
    Publication date: November 6, 2008
    Applicant: INFOCUS CORPORATION
    Inventor: Jiaxian Wang
  • Patent number: 7447608
    Abstract: A method and apparatus for a collaborative meeting room system. In response to user input, an electronic device starts a meeting timer to begin timing a meeting at which a previously-created meeting agenda is used. The electronic device causes a projection device to project a running meeting timer, as a result of starting the meeting timer. An agenda item included in the previously-created meeting agenda is retrieved, as a result of starting the meeting timer. The electronic device causes the projection device to project meeting minutes for the agenda item, as a result of retrieving the agenda item.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: November 4, 2008
    Assignee: InFocus Corporation
    Inventors: Rene Poston, David Elliot Slobodin, Paul Long, Curt Kessler, Steve Murtha, Lorenzo Dunn
  • Patent number: 7442161
    Abstract: A position adjuster for a projection device is provided. The position adjuster may include both a coarse adjustment mechanism and a fine adjustment mechanism for positioning the projection device relative a reference surface.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: October 28, 2008
    Assignee: InFocus Corporation
    Inventor: Robert Gainer
  • Patent number: 7436592
    Abstract: A combination screen. The combination screen can be configured to provide both light diffusion functionality and light redirection functionality.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: October 14, 2008
    Assignee: InFocus Corporation
    Inventor: Mark David Peterson
  • Patent number: 7433122
    Abstract: An apparatus, system, and method for a front-projection screen having a subsurface diffusion target are disclosed herein.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: October 7, 2008
    Assignee: Infocus Corporation
    Inventor: Mark D. Peterson
  • Patent number: 7413313
    Abstract: An apparatus, system, and method for an optical shutter with a rotational axis in the light path of a projection device are disclosed herein.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: August 19, 2008
    Assignee: Infocus Corporation
    Inventor: Mark D. Peterson
  • Patent number: 7413312
    Abstract: A projection system. The projection system includes a projector, a projector holder, and, optionally, a screen. When included, the screen has at least a deployed configuration in which a viewing portion of the screen is substantially planar. The projector includes a wide-angle lens system to selectively project display images onto the projection screen or other viewing surface. The projector holder supports the projector and is moveable relative to the projection screen or other viewing surface. The projector holder has at least an operating position at which the projector is supported for projection onto the projection screen or other viewing surface.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: August 19, 2008
    Assignee: InFocus Corporation
    Inventors: T. Scott Engle, Jeffrey A. Gohman
  • Patent number: D574877
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: August 12, 2008
    Assignee: InFocus Corporation
    Inventors: Richard Schoenert, Danny Han, Phillip Salvatori
  • Patent number: RE40675
    Abstract: A method An apparatus and system for producing a digital video signal from an analog video signal, the analog video signal including an analog video data signal that is raster scanned in lines across a CRT screen to form consecutive frames of video information, the raster scanning controlled by use of a horizontal synchronizing signal (Hsnyc) (Hsync) that controls a line scan rate, and a vertical synchronizing signal (Vsnyc) (Vsync) that controls a frame refresh rate, to produce consecutive frames of video information, wherein the digital signal is produced by generating a pixel clock signal with pixel clocks for repetitively sampling instantaneous values of the analog video data signal, and digitizing the analog video data signal based on the pixel clock sampling.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: March 24, 2009
    Assignee: Infocus Corporation
    Inventor: Michael G. West