Patents by Inventor John Barnett

John Barnett 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: 7208771
    Abstract: A structure having an optical element thereon has a portion of the structure extending beyond a region having the optical element in at least one direction. The structure may include an active optical element, with the different dimensions of the substrates forming the structure allowing access for the electrical interconnections for the active optical elements. Different dicing techniques may be used to realize the uneven structures.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: April 24, 2007
    Assignee: Digital Optics Corporation
    Inventors: Alan D Kathman, Hongtao Han, Jay Mathews, John Barnett Hammond
  • Publication number: 20070014708
    Abstract: Apparatus and a method for collecting and redirecting liquid which has been separated from a gaseous process stream by inertial separation techniques such that the separated liquid and gaseous stream are flowing co-currently or counter-currently within the same process apparatus. The apparatus has liquid catch means, such as a flange, for catching the separated liquid and flow-through means, such as a flow-through opening in the flange, for simultaneously allowing the gaseous materials to flow, co-currently or counter-currently with the separated liquid, through and past the liquid catch means and downstream on to further processing equipment. The method comprises collecting the separate liquid phase by patching the separate liquid phase as it drips and flows down the inner wall of the process apparatus, while simultaneously allowing the gaseous materials to flow on, co-currently or counter-currently with the separate liquid phase, to further processing equipment, using the aforesaid apparatus.
    Type: Application
    Filed: May 26, 2006
    Publication date: January 18, 2007
    Inventors: John Barnett, Jeffery Goodwin, Timothy Hale, Robert Mason, Rene Zamarripa
  • Patent number: 7092416
    Abstract: A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 15, 2006
    Assignee: Digital Optics Corporation
    Inventors: Alan Kathman, John Barnett Hammond, Robert Te Kolste, Alvaro Cruz Cabrera
  • Publication number: 20040247232
    Abstract: An optical chassis includes a mount substrate an optoelectronic device on the mount substrate, a spacer substrate, and a sealer substrate. The mount substrate, the spacer substrate and the sealer substrate are vertically stacked and hermetically sealing the optoelectronic device. An external electrical contact for the optoelectronic device is provided outside the sealing. At least part of the optical chassis may be made on a wafer level. A passive optical element may be provided on the sealer substrate or on another substrate stacked and secured thereto.
    Type: Application
    Filed: March 26, 2004
    Publication date: December 9, 2004
    Inventors: Alan D. Kathman, James E. Morris, John Barnett Hammond, Michael R. Feldman
  • Publication number: 20040221308
    Abstract: An integrated media viewing environment including a user interface (UI) and a method for providing a program guide with an integrated media viewing environment. The integrated media viewing environment presents viewers with on-screen displays, e.g., a single, integrated on-screen display, that may be used to obtain, view and/or record media content, including programming that is currently airing, available via download or data streaming, available on an “on demand” basis, and/or available from local storage or removable media.
    Type: Application
    Filed: January 7, 2004
    Publication date: November 4, 2004
    Inventors: Craig D. Cuttner, Sarah Cotsen, Henry Merritt Paulson, Mary Baumgartner, Sandy Alessandro Spadavecchia, John Barnett Ovrutsky, Stephanie Otto, Michael Stanley Onaitis
  • Patent number: 6798931
    Abstract: A structure having an optical element thereon has a portion of the structure extending beyond a region having the optical element in at least one direction. The structure may include an active optical element, with the different dimensions of the substrates forming the structure allowing access for the electrical interconnections for the active optical elements. Different dicing techniques may be used to realize the uneven structures.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: September 28, 2004
    Assignee: Digital Optics Corp.
    Inventors: Alan D Kathman, Hongtao Han, Jay Mathews, John Barnett Hammond
  • Publication number: 20040146077
    Abstract: A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
    Type: Application
    Filed: September 15, 2003
    Publication date: July 29, 2004
    Applicant: Digital Optics Corporation
    Inventors: Alan Kathman, John Barnett Hammond, Robert Te Kolste, Alvaro Cruz Cabrera
  • Patent number: 6768096
    Abstract: Passive thermal stabilization of a wavelength monitor includes shielding a wavelength dependent filter of the wavelength monitor from ambient cavity temperatures with portions extending from a submount supporting detectors for the wavelength monitor. The portions and the submount may constitute a single piece, or may be multiple pieces. The shield covers at least one surface of the wavelength dependent filter. The shield may include electrical interconnections for the detectors. A temperature detector may be provided on the submount or the shield portions. The submount or shield portions may be modeled and/or designed to have a section that tracks the thermal response of the wavelength dependent filter and the temperature detector may be mounted on that section.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: July 27, 2004
    Assignee: Digital Optics Corp.
    Inventors: John Barnett Hammond, Bingzhi Su
  • Patent number: 6683295
    Abstract: Numerous features may be incorporated into a wavelength locker to reduce the noise inherent therein. These features may be used in any combination thereof. These features include avoiding the use of reflectors, using a diffractive splitter which outputs evanescent beams for diffractive orders greater than one, using anti-reflective coatings, using an opaque material with through holes for the light, and designing the wavelength locker to be used at a tilt.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: January 27, 2004
    Assignee: Digital Optics Corp.
    Inventors: Alvaro Cruz-Cabrera, Thomas J. Suleski, John Barnett Hammond
  • Patent number: 6661818
    Abstract: An etalon used in analyzing a wavelength of a light source includes ant etalon only in a portion of a substrate in which the etalon is integrated. Use of such an etalon in monitoring or controlling the wavelength allows the etalon to be placed in an application beam. A portion of the application beam is split into at least two beams, a first beam being directed to the etalon to monitor the wavelength, and the other beam either serving purely as a reference beam or passing through another etalon having a different optical path length than the etalon for the first beam, thereby also monitoring the wavelength. The monitor itself would include at least two photodetector, one for each of the beam split off of the input beam. Any or all substrates containing the elements for the monitor may be created on a wafer level and diced and/or bonded to other wafers containing other elements and diced.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: December 9, 2003
    Assignee: Digital Optics Corporation
    Inventors: Michael R. Feldman, Hongtao Han, John Barnett Hammond
  • Publication number: 20030141438
    Abstract: Passive thermal stabilization of a wavelength monitor includes shielding a wavelength dependent filter of the wavelength monitor from ambient cavity temperatures with portions extending from a submount supporting detectors for the wavelength monitor. The portions and the submount may constitute a single piece, or may be multiple pieces. The shield covers at least one surface of the wavelength dependent filter. The shield may include electrical interconnections for the detectors. A temperature detector may be provided on the submount or the shield portions. The submount or shield portions may be modeled and/or designed to have a section that tracks the thermal response of the wavelength dependent filter and the temperature detector may be mounted on that section.
    Type: Application
    Filed: January 31, 2002
    Publication date: July 31, 2003
    Inventors: John Barnett Hammond, Bingzhi Su
  • Patent number: 6588945
    Abstract: An interface system includes separate optical and mechanical interfaces between opto-electronic devices and fibers. This allows each of these components to be optimized for there particular function. This also allows two surfaces to be provided for the optical interface, allowing the opto-electronic elements to be spaced further apart than the fibers. The interface system can be integrated together, used in conjunction with a conventional fiber housing, and can be surface mounted with an electrical interface.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: July 8, 2003
    Assignee: Digital Optics Corporation
    Inventors: John Barnett Hammond, Hongtao Han, Michael R. Feldman
  • Publication number: 20030063632
    Abstract: Numerous features may be incorporated into a wavelength locker to reduce the noise inherent therein. These features may be used in any combination thereof.
    Type: Application
    Filed: November 28, 2001
    Publication date: April 3, 2003
    Inventors: Alvaro Cruz-Cabrera, Thomas J. Suleski, John Barnett Hammond
  • Publication number: 20020150357
    Abstract: An interface system includes separate optical and mechanical interfaces between opto-electronic devices and fibers. This allows each of these components to be optimized for there particular function. This also allows two surfaces to be provided for the optical interface, allowing the opto-electronic elements to be spaced further apart than the fibers. The interface system can be integrated together, used in conjunction with a conventional fiber housing, and can be surface mounted with an electrical interface.
    Type: Application
    Filed: June 17, 2002
    Publication date: October 17, 2002
    Inventors: John Barnett Hammond, Hongtao Han, Michael R. Feldman
  • Publication number: 20020126940
    Abstract: A structure having an optical element thereon has a portion of the structure extending beyond a region having the optical element in at least one direction. The structure may include an active optical element, with the different dimensions of the substrates forming the structure allowing access for the electrical interconnections for the active optical elements. Different dicing techniques may be used to realize the uneven structures.
    Type: Application
    Filed: October 23, 2001
    Publication date: September 12, 2002
    Inventors: Alan D. Kathman, Hongtao Han, Jay Matthews, John Barnett Hammond
  • Patent number: 5896829
    Abstract: Animal exposure chambers are provided which have a radial configuration about an axis of air flow and tapered ports to more comfortably accommodate the animals during exposure.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: April 27, 1999
    Assignee: Genzyme Transgenics Corporation
    Inventors: Simon J. Rothenberg, George Dearlove, John Barnett, Daniel Dewees, William Ehrhart
  • Patent number: 5663597
    Abstract: This is a device package comprising: a leadframe comprising a plurality of leads for effecting circuit connections to the device; and a metal ground piece connected to the leadframe. Other devices and methods are also disclosed.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: September 2, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Stephen R. Nelson, Buford H. Carter, Dennis D. Davis, Tammy J. Lahutsky, John Barnett, Glen R. Haas, Jr.