Patents by Inventor Winthrop D Childers

Winthrop D Childers 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).

  • Projector with consumable component having memory device
    Patent number: 6956490
    Abstract: A system includes a projector having a consumable component such, as a lamp. The consumable component includes a memory device. An application on the projector has access to the memory device. Additionally, a user interface, updated by the application, is configured to display information from the memory device within the consumable component.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: October 18, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Winthrop D. Childers
  • Mixing apparatus
    Patent number: 6932502
    Abstract: A mixing apparatus that includes a drop on demand fluid dispenser for adding an additive fluid to a receiver liquid to produce a composite liquid that includes the receiver liquid and the additive fluid.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: August 23, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Mark A. Van Veen, Mohammad M Samii, Steven W Steinfield
  • Inkjet printhead assembly having very high drop rate generation
    Patent number: 6932453
    Abstract: An inkjet printhead assembly includes at least one inkjet printhead including N primitives and an address having M possible address values. Each primitive includes a group of at most M drop generators. The address is cycled through all M address values to control a sequence of which one drop generator in the primitive is fired at a given time. One drop generator in the primitive can be fired simultaneously with one drop generator in each of the other primitives. A primitive to address ratio (N/M) of the printhead is at least 10 to 1.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: August 23, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James A. Feinn, Winthrop D. Childers, Michael J. Barbour
  • Fuel supply for a fuel cell
    Patent number: 6924054
    Abstract: The present invention concerns a fuel supply for a fuel cell. The fuel supply includes a fuel storage area configured to hold a fuel solution, a fuel solution outlet configured to pass the fuel solution from the fuel storage area, a waste storage area, a waste inlet configured to pass waste into the waste storage area, and a movable barrier separating the fuel storage area and the waste storage area. The movable barrier is configured to move as fuel solution is passed from the fuel storage area and waste solution is passed into the waste storage area to simultaneously decrease the volume of the fuel storage area and increase the volume of the waste storage area.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: August 2, 2005
    Assignee: Hewlett-Packard Development Company L.P.
    Inventors: Ravi Prasad, Qin Liu, Loren E. Johnson, Michael L. Bullock, Winthrop D. Childers, L. Chris Mann, Joseph W. Tsang
  • Color-generating device and display system
    Patent number: 6921175
    Abstract: A light-filtering element for a display device is provided. The element includes at least one filter having a chamber with a filtering fluid, the filtering fluid selectively disposed in an optical path, and a liquid motion actuator selectively configured to move the filtering fluid substantially into and out of the optical path.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: July 26, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Noah Lassar, Steven W. Steinfield, Mohammad M. Samii, Jack H. Schmidt, Matthew Giere, David Tyvoll, Winthrop D. Childers
  • Large thermal ink jet nozzle array printhead
    Patent number: 6921156
    Abstract: The present invention includes as one embodiment a printhead including a flat panel substrate made of a non-crystalline material, an array of inkjet drop generators formed onto the flat panel substrate to define an inkjet printhead and thin film transistors formed on the flat panel substrate that are electrically coupled to the array of ink jet drop generators.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: July 26, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Douglas A. Sexton
  • Filter for a display system
    Patent number: 6920000
    Abstract: A filter for a display system is provided which includes a fluid chamber having a selectively moveable filtering fluid, plural electrodes being coupled with the fluid chamber to accommodate establishment of an electric field whereby the filtering fluid may be selectively positioned in an optical path.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: July 19, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven W. Steinfield, Mohammad M. Samii, Jack H. Schmidt, Matthew Giere, David Tyvoll, Noah Lassar, Winthrop D. Childers
  • Projector with narrow-spectrum light source to complement broad-spectrum light source
    Patent number: 6905217
    Abstract: A projector that has a narrow-spectrum light source to complement a broad-spectrum light source is disclosed. The broad-spectrum light source has a broad spectrum. The narrow-spectrum light source has a narrow spectrum complementing the broad spectrum of the broad-spectrum light source.
    Type: Grant
    Filed: February 21, 2004
    Date of Patent: June 14, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Mark A. Van Veen, Mohammad M. Samii, William J. Allen, Jack H. Schmidt, Steven W. Steinfield, Wayne M. Richard, James R. Cole, James P. Dickie
  • Inhalation device and method for delivering variable amounts of different components
    Patent number: 6886557
    Abstract: An inhalation device configured to programmably emit small droplets of multiple components in which quantities of the multiple components can vary with each successive activation of the inhalation device.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: May 3, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, David Tyvoll
  • Projector having concentrated beam
    Patent number: 6860606
    Abstract: A concentrated beam source for a projector includes a plurality of individually addressable light sources configured in a two-dimensional array and a beam concentrator. The beam concentrator is configured to receive light from the plurality of light sources and to produce a reduced beam of collimated light having a component representative of each light source. The reduced beam has cross-sectional dimensions smaller than cross-sectional dimensions of the two-dimensional array.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: March 1, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Michael A. Pate
  • Method and system for generating color using a low-resolution spatial color modulator and a high-resolution modulator
    Patent number: 6850352
    Abstract: A method and system for generating an image. The image includes an array of low-resolution pixels each including a plurality of high-resolution pixels. The display system includes a first light modulator having an array of color pixel elements wherein each of the color pixel elements is configured to independently modulate a spectral distribution of one of the low-resolution pixels and a second light modulator having an array of gray scale pixel elements each configured to independently modulate a gray scale of the high-resolution pixels. The first and second light modulators are configured to cooperatively operate such that each of the low-resolution pixels includes a number of groups of high-resolution pixels each having a different hue.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: February 1, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Winthrop D. Childers
  • Projector replaceable part with non-conventional operational recorder
    Publication number: 20040263800
    Abstract: Systems and methods for recording data in a replaceable component of a digital image projector are described. A replaceable component configured to be used in an image projection system includes a non-volatile electronic memory configured to store information not directly related to conventional operation of image projection systems.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 30, 2004
    Inventor: Winthrop D. Childers
  • System for enhancing the quality of an image
    Patent number: 6832839
    Abstract: A system for enhancing the quality of an image on a screen is provided. The system typically includes an illumination source configured to produce light and direct such light along an optical path, and a time-varying focus device disposed in the optical path and configured to periodically alter incident light to enhance the quality of the image on the screen.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 21, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, William J. Allen
  • Switching apparatus
    Patent number: 6832015
    Abstract: Switching apparatus that includes a bubble generator, a flexible membrane disposed over the bubble generator and selectively expanded by the bubble generator, and a switch circuit controlled by expansion of the flexible membrane.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: December 14, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Winthrop D. Childers
  • Replaceable fuel cell apparatus having information storage device
    Patent number: 6828049
    Abstract: A fuel cell apparatus in accordance with a present invention includes an information storage device. A method of operating a host device in accordance with a present invention includes the step(s) of writing data to, and/or accessing data on, a fuel cell apparatus information storage device. A system in accordance with a present invention includes a host device and a fuel cell apparatus with an information storage device.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: December 7, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael L. Bullock, Winthrop D. Childers
  • Display system with low and high resolution modulators
    Patent number: 6817717
    Abstract: A display system is provided, the system including an illumination source configured to produce light and direct light along an optical path, a plurality of color filters disposed in the optical path configured to generate a plurality of colored light beams, and a spatial light modulator disposed in the optical path adapted to receive and adjust the colored light beams to produce an image.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: November 16, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Noah Lassar, William Allen, Mohammad M. Samii, Jack H. Schmidt, Mark A. Van Veen
  • Test tray and test system for determining response of a biological sample
    Publication number: 20040219074
    Abstract: The present invention provides test trays and test tray systems for assessing the response of a biological sample to a compound or combination of compounds. The compounds or combinations are arranged in a factorial design in wells of the test tray, thereby facilitating the identification of optimal compound combinations and concentrations. The invention also provides methods of fabricating the test trays including the use of programmably controllable fluid dispensing devices. In addition, the invention provides methods of using the test trays and test tray systems to identify a preferred compound or compound combination, e.g., an optimum compound or compound combination.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Inventors: Winthrop D. Childers, Michael K. Gordon, Mark A. Van Veen, Mohammad M. Samii
  • Electrical analysis of biological membranes
    Publication number: 20040214312
    Abstract: A biochip device for electrical analysis of biological membranes. The device may include a substrate assembly defining an array of apertures and including thin-film devices configured to sense an electrical property of biological membranes that seal the apertures. The device also may include an electrical interface coupled electrically to the thin-film devices and configured to electrically couple the thin-film devices to a control apparatus. The electrical interface may define a plurality of interface elements, and the apertures may be in excess over the interface elements.
    Type: Application
    Filed: April 24, 2003
    Publication date: October 28, 2004
    Inventors: David Tyvoll, Winthrop D. Childers
  • Mixing apparatus for injecting fluid into a gas stream
    Patent number: 6799882
    Abstract: A mixing apparatus having a channel for guiding an input gas stream, a drop on demand fluid drop emitting apparatus for emitting drops of a fluid into the input gas stream to produce a gas mixture that contains the fluids drops, and a pressure control system for controlling a pressure of the fluid in the drop on demand fluid drop emitting apparatus.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: October 5, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Winthrop D. Childers, Mark A. Van Veen, Steven W Steinfield, Mohammad M Samii
  • Method and device for filling a printing-fluid container
    Publication number: 20040183871
    Abstract: A method of filling a printing-fluid container, comprising providing a printing-fluid container that includes a leading surface having an outer-perimeter with a top edge and a bottom edge, wherein the printing-fluid container includes a printing-fluid interface positioned on the leading surface proximate the bottom edge and an air-interface positioned on the leading surface proximate the top edge in generally vertical alignment with the printing-fluid interface. The method further comprises passing printing fluid through the printing-fluid interface into the printing-fluid container, and permitting air to pass through the air-interface out of the printing-fluid container.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Inventors: Winthrop D. Childers, Charlie Steinmetz, Curt Gonzales