Patents by Inventor David W. Wine
David W. Wine 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).
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Patent number: 9184463Abstract: The present invention disclosed herein is directed to nitric acid regeneration fuel cell systems that comprise: an anode; a cathode confronting and spaced apart from the anode; an anolyte flowstream configured to flowingly contact the anode, wherein the anolyte flowstream includes a fuel, preferably methanol, for reacting at the anode; a catholyte flowstream configured to flowingly contact the cathode, wherein the catholyte flowstream includes nitric acid for reacting at the cathode to thereby yield cathode reaction products that include nitric oxide and water in a catholyte effluent flowstream; and a hydrogen peroxide flowstream configured to contact and react hydrogen peroxide with the nitric oxide of the catholyte effluent flowstream at a hydrogen peroxide oxidation zone to thereby yield a regenerated nitric acid flowstream. The regenerated nitric acid flowstream is preferably reused in the catholyte flowstream.Type: GrantFiled: October 15, 2004Date of Patent: November 10, 2015Inventors: Leroy J. Ohlsen, Slobodan Petrovic, David W. Wine, Lorne Roy, Julie Birashk
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Patent number: 7516896Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from an oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to change the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted combined center of mass changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: February 18, 2005Date of Patent: April 14, 2009Assignee: Microvision, Inc.Inventors: Mark P. Helsel, David W. Wine
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Patent number: 7473888Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: November 17, 2006Date of Patent: January 6, 2009Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Jon D. Barger, Clarence T. Tegreene
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Patent number: 7310174Abstract: A beam scanner is operable to scan light in two or more axes, typically in a raster pattern that includes a fast scan axis and a slow scan axis. Plural beams of light are scanned, each beam of light producing a scanned region that at least partially overlaps at least one adjoining scanned region. Scanned regions may be aligned to adjoin and overlap along a dimension corresponding to the slow scan axis. The beam scanner may comprise a scanned beam display and/or a scanned beam image capture device. In a display, the power level of overlapping displayed pixels may be scaled to provide smooth transitions between adjoining regions to improve the image quality presented to a viewer. In an image capture device, one or more detectors is operable to collect light scattered from adjoining regions and a controller is operable to produce an image from the scanned regions.Type: GrantFiled: November 28, 2005Date of Patent: December 18, 2007Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Clarence T. Tegreene
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Patent number: 7157679Abstract: A scanned beam display includes compensation for pattern-dependant heating of a light source. According to some embodiments, received image data is transformed to corrected data that compensates for pattern-dependent heating of one or more light sources.Type: GrantFiled: July 29, 2005Date of Patent: January 2, 2007Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Jon D. Barger, Clarence T. Tegreene
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Patent number: 7002716Abstract: A beam scanner is operable to scan light in two or more axes, typically in a raster pattern that includes a fast scan axis and a slow scan axis. Plural beams of light are scanned, each beam of light producing a scanned region that at least partially overlaps at least one adjoining scanned region. Scanned regions may be aligned to adjoin and overlap along a dimension corresponding to the slow scan axis. The beam scanner may comprise a scanned beam display and/or a scanned beam image capture device. In a display, the power level of overlapping displayed pixels may be scaled to provide smooth transitions between adjoining regions to improve the image quality presented to a viewer. In an image capture device, one or more detectors is operable to collect light scattered from adjoining regions and a controller is operable to produce an image from the scanned regions.Type: GrantFiled: January 30, 2004Date of Patent: February 21, 2006Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Clarence T. Tegreene
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Patent number: 6924476Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: October 27, 2003Date of Patent: August 2, 2005Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Jon D. Barger, Clarence T. Tegreene
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Patent number: 6882462Abstract: A micro-electromechanical system (MEMS) scanner may be used in a range of systems including a scanned beam display or a scanned beam image capture system. The MEMS scanner may include provision for movement or oscillation in two or more axes. A mass asymmetry is introduced to the scanner. The mass asymmetry induces an oscillation component in an axis orthogonal to a primary axis of movement. The asymmetric mass may be formed by a number of means including selective application and selective removal. In some applications, the mass may be selectively formed or removed in an array of locations. The frequency, phase, and direction of induced oscillation component may be selected.Type: GrantFiled: August 22, 2003Date of Patent: April 19, 2005Assignee: Microvision, Inc.Inventors: Mark P. Helsel, David W. Wine, Clarence T. Tegreene
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Publication number: 20040196518Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted moment of inertia changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: ApplicationFiled: January 30, 2004Publication date: October 7, 2004Applicant: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Clarence T. Tegreene
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Publication number: 20040119004Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: ApplicationFiled: October 27, 2003Publication date: June 24, 2004Applicant: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Jon D. Barger, Clarence T. Tegreene
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Publication number: 20040085617Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from an oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to change the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted combined center of mass changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: ApplicationFiled: August 22, 2003Publication date: May 6, 2004Applicant: Microvision, Inc.Inventors: Mark P. Helsel, David W. Wine, Clarence T. Tegreene
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Patent number: 6687034Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted moment of inertia changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: January 10, 2003Date of Patent: February 3, 2004Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Clarence T. Tegreene
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Patent number: 6653621Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: November 25, 2002Date of Patent: November 25, 2003Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Jon D. Barger, Clarence T. Tegreene
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Patent number: 6654158Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from an oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to change the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted combined center of mass changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: November 1, 2002Date of Patent: November 25, 2003Assignee: Microvision, Inc.Inventors: Mark P. Helsel, David W. Wine, Clarence T. Tegreene
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Publication number: 20030161020Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted moment of inertia changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: ApplicationFiled: January 10, 2003Publication date: August 28, 2003Applicant: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Clarence T. Tegreene
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Publication number: 20030133196Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: ApplicationFiled: November 25, 2002Publication date: July 17, 2003Applicant: Microvision, Inc.Inventors: David W. Wine, Mark P. Helsel, Jon D. Barger, Clarence T. Tegreene
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Publication number: 20030117689Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from an oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to change the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted combined center of mass changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: ApplicationFiled: November 1, 2002Publication date: June 26, 2003Applicant: Microvision, Inc.Inventors: Mark P. Helsel, David W. Wine, Clarence T. Tegreene
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Patent number: 6535325Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from an oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to change the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted combined center of mass changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: April 20, 2001Date of Patent: March 18, 2003Assignee: Microvision, Inc.Inventors: Mark P. Helsel, David W. Wine
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Patent number: RE41374Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: November 29, 2007Date of Patent: June 15, 2010Assignee: Microvision, Inc.Inventors: David W. Wine, Mark P. Heisel, Jon D. Barger, Clarence T. Tegreene
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Patent number: RE41375Abstract: A MEMs scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern.Type: GrantFiled: November 30, 2007Date of Patent: June 15, 2010Assignee: Microvision, Inc.Inventors: David W Wine, Mark P Helsel, Jon D. Barger, Clarence T. Tegreene