Patents by Inventor Jeffery Hawver

Jeffery Hawver 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).

  • Publication number: 20080036142
    Abstract: An apparatus for recording an image onto a sheet medium has an entrance drive roller paired with a corresponding entrance pressure roller to form an entrance nip for transporting the sheet medium into an image recording section. The image recording section has a write head for recording onto a portion of the sheet medium being transported between the entrance nip and exit nip. The exit nip is formed by a drive roller paired with a corresponding exit pressure roller for transporting the sheet medium out from the image recording section. A motor provides rotary motion to a pinion roller mechanically coupled to the entrance and exit drive rollers. A loading mechanism provides a loading force to nest the pinion roller into rotational contact against a portion of the entrance and exit drive rollers.
    Type: Application
    Filed: October 17, 2007
    Publication date: February 14, 2008
    Inventors: Mark Bedzyk, Jeffery Hawver
  • Publication number: 20070081127
    Abstract: A fundus camera (10) obtains a retinal image using a light source (62), a ring aperture (58) conjugate to the cornea, and a first aperture (54) conjugate to the iris. An apertured mirror (52) redirects the ring illumination toward the eye. An objective lens (50) between the apertured mirror (52) and the eye has an entrance pupil between the iris and the cornea of the eye. The objective lens (50) directs the ring illumination into the pupil of the eye and directs a reflected image-bearing light from the retina through the apertured mirror (52). A second aperture (64), conjugate to a plane between the cornea and the iris of the eye, forms an aperture stop for the reflected image-bearing light. A third aperture (68) is conjugate to the cornea for blocking light reflected. A sensor (70) provides an image of the retina.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 12, 2007
    Inventors: Rongguang Liang, Jeffery Hawver
  • Publication number: 20070030450
    Abstract: An apparatus for obtaining a retinal image of an eye has a control logic processor (214) for executing a sequence of operations for obtaining the image. A visual target (162) orients the eye of a patient when viewed. An indicator element (410) provides a signal that indicates that the patient is in position. A cornea focus detection section (450) indicates cornea focus, in cooperation with the control logic processor (214). An alignment actuator aligns the optical path according to a signal obtained from the cornea focus detection section (450). A retina focus detection section (452) detects retina focus in cooperation with the control logic processor (214). A focusing actuator (406) is controlled by instructions from the control logic processor (214) according to a signal obtained from the retina focus detection section (452). An image capture light source is energized by the control logic processor (214) for illuminating the retina.
    Type: Application
    Filed: August 3, 2005
    Publication date: February 8, 2007
    Inventors: Rongguang Liang, Dale Tucker, Jeffery Hawver, Seung-Ho Baek, Vishwas Abhyankar, Richard Weil, Douglass Blanding
  • Publication number: 20060197817
    Abstract: An apparatus for transporting a sheet recording medium (12) has an entrance drive roller (16) paired with a corresponding entrance pressure roller (18) to form an entrance nip (14) for transporting the sheet recording medium (12) into a scanning section (20) between the entrance nip (14) and an exit nip (24). The exit nip (24) is formed by an exit drive roller (26) with a corresponding exit pressure roller (28) for transporting the recording medium (12) out from the scanning section (20). At each end of the entrance pressure roller (18), an entrance pressure roller actuation arm (120) actuates the entrance pressure roller (18) to exert variable force against the entrance drive roller (16). At each end of the exit pressure roller (28), an exit pressure roller actuation arm (130) actuates the exit pressure roller (28) to exert variable force against the exit drive roller (26).
    Type: Application
    Filed: March 1, 2005
    Publication date: September 7, 2006
    Inventors: Mark Bedzyk, Jeffery Hawver
  • Publication number: 20060153622
    Abstract: An apparatus for recording an image onto a sheet medium (12) has an entrance drive roller (16) paired with a corresponding entrance pressure roller (18) to form an entrance nip (14) for transporting the sheet medium into an image recording section (20). The image recording section has a write head (56) for recording onto a portion of the sheet medium being transported between the entrance nip (14) and exit nip (24). The exit nip is formed by a drive roller (26) paired with a corresponding exit pressure roller (28) for transporting the sheet medium out from the image recording section. A motor (60) provides rotary motion to a pinion roller (40) mechanically coupled to the entrance and exit drive rollers (16, 26). A loading mechanism provides a loading force to nest the pinion roller into rotational contact against a portion of the entrance and exit drive rollers (16, 26).
    Type: Application
    Filed: January 13, 2005
    Publication date: July 13, 2006
    Inventors: Mark Bedzyk, Jeffery Hawver
  • Publication number: 20060104702
    Abstract: An apparatus for recording an image onto a sheet medium (12) has an entrance nip (14) for transporting the sheet medium (12) into an image recording section (20). A write head (56) records onto a portion of the sheet medium (12) between the entrance nip (14) and exit nip (24). The exit nip (24) is formed by a drive roller (26) paired with a corresponding exit pressure roller (28). A motor (60) provides rotary motion to either the entrance drive roller (16) or the exit drive roller (26). A coupling apparatus (54) has a coupling roller (36) and a loading mechanism providing a loading force to nest the coupling roller (36) into continuous rotational contact against the entrance and exit drive rollers (16,26), whereby rotation is transferred between the exit drive roller (26) and the entrance drive roller (16).
    Type: Application
    Filed: October 29, 2004
    Publication date: May 18, 2006
    Inventors: Jeffery Hawver, Mark Bedzyk, Scott Milton
  • Publication number: 20060092376
    Abstract: An apparatus (220) for obtaining a scanned image of an eye has a reference locator for pupil alignment apparatus along an optical axis. A pupil profiling apparatus for obtaining an outline of the pupil has a pupil profiling light source (176), a sensor (170) for detecting reflected light, and a control logic processor (104) for computing an outline of the pupil according to detected light. An illumination apparatus (112) for directing visible illumination into the eye has a spatial light modulator (125) for shaping an illumination beam according to the detected outline, a scanning element (229), and a camera (146) for obtaining the scanned image by sensing a portion of the reflected illumination.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventors: Seung-Ho Baek, Douglass Blanding, Rongguang Liang, Dale Tucker, Jeffery Hawver
  • Publication number: 20050190212
    Abstract: A printing apparatus (10) exposes an image onto a photosensitive medium (14), having a printhead (20) with a linear array of exposure sources (40), each exposure source (12) operable at a variable intensity. A shuttle mechanism (16) moves the printhead (20) over the photosensitive medium (14) in a reciprocating motion between one end of a carriage assembly (72) and the other. An encoder (38) is coupled to the shuttle mechanism (16) for providing an index encoder pulse (60) at each of a plurality of increments of position of the shuttle mechanism (16) along the carriage assembly (72). Exposure control logic calculates a shuttle velocity according to index signal timing and adjusts the variable intensity of each exposure source (12) according to the shuttle velocity.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 1, 2005
    Inventor: Jeffery Hawver