Patents Examined by Russel Adams
  • Patent number: 6715880
    Abstract: A projector device is provided which is capable of reducing its costs by making it possible to increase luminance of outgoing light from a rod integrator with an output from a light source being remained unchanged and by making it possible to achieve a compact illuminating optical system using a shortened total length of the rod integrator. Notches each having a predetermined angle or a convex portion is formed in a vicinity of a light incident face and in a vicinity of a light outgoing face of a rod integrator. A sloped line produced at an angle formed by one portion of each of the notches on the light incident side relative to a center line is approximately parallel to a light incident line produced at an angle formed by incident light relative to the center line.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: April 6, 2004
    Assignee: NEC Viewtechnology, Ltd.
    Inventor: Eisaku Shouji
  • Patent number: 6710844
    Abstract: A method and an apparatus for estimating a camera motion include a frame picture memory unit for storing a plurality of moving picture frames, a buffer for sequentially extracting the frames and storing them, a block division unit for dividing each of the frames stored in the buffer into a plurality of blocks, a mean picture generation unit for generating horizontal and vertical mean pictures using the blocks, a horizontal and a vertical mean picture memory unit for storing the data of the horizontal and vertical mean pictures, a motion vector extraction unit for extracting motion vectors from the blocks using horizontal and vertical mean picture data, a motion vector memory unit for storing the data of the motion vectors, and a camera motion estimation unit for estimating a camera motion using the motion vector data.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: March 23, 2004
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyu Seo Han, Byung Tae Chun, Jae Yeon Lee, Jung Soh, Ho Sub Yoon, Se Yoon Jeong, Young Lae Bae
  • Patent number: 6650832
    Abstract: The present invention discloses a variable power lens barrel including a first lens unit that is positioned nearest to the subject side, and a cam barrel having the first cam, wherein the first cam alternately and continuously has a plurality of variable power cam portions that drive the first lens unit for varying power thereof in the optical axis direction and a plurality of focus cam portions that drive the first lens unit driven by the respective variable power cam portions for focusing in the optical axis, and an amount of lift of the focus cam portion of the first cam, which drives the first lens unit, in the optical axis direction at the telephoto end is smaller than an amount of lift of the focus cam portion of the first cam, which drives the first lens unit, in the optical axis direction at other variable power positions.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: November 18, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinichi Masuda
  • Patent number: 6594078
    Abstract: A stackable mechanical package for a digitally addressed projector (12N) includes a housing portion (22) having top and rear surfaces (44) that are shaped to form a contoured recess (46), and a pedestal portion (20) having bottom and front surfaces (60) that are sized to mate with the contoured recess when the package is in a shippable configuration. When a top side (50) of the pedestal portion is mated to a bottom side (32) of the housing portion, the stackable package is in a first operational configuration. Alternatively, when the stackable package is stacked below another similar stackable package (12F), the shippable configuration further forms a second operational configuration. The stackable package includes legs (24, 26) attached to and protruding from the pedestal portion to support the package apparatus in the first operational configuration or to fasten together the housing and pedestal portions when the package is in the shippable configuration.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: July 15, 2003
    Assignee: Clarity Visual Systems, Inc.
    Inventors: Benjamin R. Clifton, Christopher W. L. Brandt
  • Patent number: 6351303
    Abstract: A method and apparatus for forming an image that is larger than the photoprinting plate by on-the-go formation of web alignment holes in a resist covered web and using the on-the-go web alignment holes to position the photoprinting plates so that a sequence of images can be formed from a single photoprinting plate with the sequence of images laterally positioned so that the images are in lateral registration so that the sequential formed images can appear as a single continuous image.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: February 26, 2002
    Inventors: Roland Thoms, Martin Klein
  • Patent number: 5856840
    Abstract: An ink supply for an ink-jet printer is provided with a main reservoir, which is typically maintained at ambient pressure. The main reservoir is coupled to a variable volume chamber via a one-way valve which allows the flow of ink from the reservoir to the chamber and prevents the flow of ink from the chamber to the reservoir. The chamber is coupled to a fluid outlet which is normally closed to prevent the flow of ink. However, when the ink supply is installed in a printer, the fluid outlet establishes a fluid connection between the chamber and the printer. The chamber is part of a pump provided with the ink supply that can be actuated to supply ink from the reservoir to the printer.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: January 5, 1999
    Assignee: Hewlett-Packard Company
    Inventors: John A. Barinaga, Bruce Cowger, Norman E. Pawlowski, Jr.