Patents by Inventor John G Thelen

John G Thelen 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).

  • Patent number: 7646514
    Abstract: In accordance with an embodiment of the present invention, an image capture device comprises a first scanning module operable to scan a first side of an object and a second scanning module operable to scan a second side of the object, the first and second scanning modules translatable along their respective displacement paths.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: January 12, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kurt E. Spears, David D. Bohn, John G. Thelen
  • Patent number: 6614563
    Abstract: A transparency adaptor is described that includes a flat panel illuminator within the scanner lid of the scanner. The flat panel illuminator provides backlighting for scanning transparencies, such that light passes through the transparency only once and into the scanner optics within the scanner base. When the flat panel illuminator is lit during a scanning process, the light source within the scanner is not lit. In a second embodiment, the flat panel illuminator is removeably attached to the scanner lid. Another alternative is for the flat panel illuminator adapter to be a separate from the scanner, such that it is placed over a transparent document when needed, either plugging into the scanner or a separate power source during the scanning process.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: September 2, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Patrick A Batten, Michael L Christensen, John G Thelen
  • Patent number: 6417937
    Abstract: A transparency adaptor is described that includes a flat panel illuminator integral with an automatic document feeder accessory for a flat bed scanner. The flat panel illuminator provides backlighting for scanning transparencies, such that light passes through the transparency only once and into the scanner optics within the scanner base. When the flat panel illuminator is lit during a scanning process, the light source within the scanner is not lit. The flat panel illuminator transparency adapter unit is controlled by the same control cable used by the automatic document feeder unit. The automatic document feeder and the flat panel illuminator transparency adapter may be simultaneously operated in order to scan more than one transparent document automatically.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: July 9, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Patrick A Batten, John G Thelen
  • Patent number: 5767977
    Abstract: An improved carriage locking system that prevents the power cord of an optical scanner from being plugged into the scanner when the optical carriage assembly of the scanner is in the locked position. The locking system may include a locking member that the user unlocks to access the power cord receptacle upon initial setup of the scanner. The locking system may also include a spring loaded locking member that latches the optical carriage assembly against movement whenever the power cord is removed from the power cord receptacle.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: June 16, 1998
    Assignee: Hewlett-Packard Co.
    Inventors: John G Thelen, Lance W Dismang