Patents by Inventor Omar Daniel Lopez
Omar Daniel Lopez 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: 11879952Abstract: An atomic vapor cell for performing RF measurements includes: a first optical window of transparent nonconducting material free of electrically conductive materials; an intermediate frame of transparent nonconducting material free of electrically conductive materials; a second optical window disposed on the intermediate frame and including transparent nonconducting material free of electrically conductive materials to minimize distortion of radiofrequency fields by the windows and frame; and a cell aperture, wherein the atomic vapor cell is hermetically sealed by bonding between the first optical window and the second optical window to the intermediate frame.Type: GrantFiled: July 13, 2021Date of Patent: January 23, 2024Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Christopher Lee Holloway, John Edward Kitching, Alexandra Brae Artusio-Glimpse, Vladimir Anatolyevich Aksyuk, Matthew Thomas Simons, Omar Daniel Lopez
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Publication number: 20220018914Abstract: An atomic vapor cell for performing RF measurements includes: a first optical window of transparent nonconducting material free of electrically conductive materials; an intermediate frame of transparent nonconducting material free of electrically conductive materials; a second optical window disposed on the intermediate frame and including transparent nonconducting material free of electrically conductive materials to minimize distortion of radiofrequency fields by the windows and frame; and a cell aperture, wherein the atomic vapor cell is hermetically sealed by bonding between the first optical window and the second optical window to the intermediate frame.Type: ApplicationFiled: July 13, 2021Publication date: January 20, 2022Inventors: Christopher Lee Holloway, John Edward Kitching, Alexandra Brae Artusio-Glimpse, Vladimir Anatolyevich Aksyuk, Matthew Thomas Simons, Omar Daniel Lopez
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Patent number: 10305421Abstract: A solar cell system is formed with a dynamic surface relief grating. Movement members are actuated by a controller to produce a force on the reflective surface. The reflective surface deforms in response to the force creating a surface relief grating that can adapt to changing light conditions.Type: GrantFiled: June 28, 2016Date of Patent: May 28, 2019Assignee: U.S. Department of EnergyInventors: Seth B Darling, Omar Daniel Lopez
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Patent number: 9778477Abstract: A method forms an image with a reconfigurable array of mirrors. The method includes configuring the array by translating some of the mirrors such that distances of the mirrors of the array from a reference plane have a non-uniform spatial distribution. The method includes illuminating the configured array with a coherent light beam such that part of the light beam is reflected off the array and is projected on a planar viewing screen.Type: GrantFiled: March 2, 2007Date of Patent: October 3, 2017Assignee: Alcatel-Lucent USA Inc.Inventors: Vladimir Anatolyevich Aksyuk, Robert Eugene Frahm, Omar Daniel Lopez, Roland Ryf
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Patent number: 9680414Abstract: This invention comprises a nonlinear micro- and nano-mechanical resonator that can maintain frequency of operation and amplitude of operation for a period of time after all external power has been removed from the device. Utilizing specific nonlinear dynamics of the micromechanical resonator, mechanical energy at low frequencies can be input and stored in higher frequencies modes, thus using the multiple degrees of freedom of the resonator to extend its energy storage capacity. Furthermore, the energy stored in multiple vibrational modes can be used to maintain the resonator oscillating for a fixed period of time, even without an external power supply. This is the first demonstration of an “autonomous” frequency source that can maintain a constant frequency and vibrating amplitude when no external power is provided, making it ideal for applications requiring an oscillator in low power, or limited and intermittent power supplies.Type: GrantFiled: February 12, 2016Date of Patent: June 13, 2017Assignee: UCHICAGO ARGONNE, LLCInventors: Changyao Chen, Omar Daniel Lopez, David A. Czaplewski
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Patent number: 8922094Abstract: A nanopositioning system for producing a coupling interaction between a first nanoparticle and a second nanoparticle. A first MEMS positioning assembly includes an electro-static comb drive actuator configured to selectively displace a first nanoparticle in a first dimension and an electrode configured to selectively displace the first nanoparticle in a second dimensions. Accordingly, the first nanoparticle may be selectively positioned in two dimensions to modulate the distance between the first nanoparticle and a second nanoparticle that may be coupled to a second MEMS positioning assembly. Modulating the distance between the first and second nanoparticles obtains a coupling interaction between the nanoparticles that alters at least one material property of the nanoparticles applicable to a variety of sensing and control applications.Type: GrantFiled: February 7, 2011Date of Patent: December 30, 2014Assignee: UChicago Argonne, LLCInventors: Omar Daniel Lopez, Gary Wiederrecht, David J. Gosztola, Derrick C. Mancini
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Patent number: 8836444Abstract: An illustrative system includes an amplifier operably connected to a phase shifter. The amplifier is configured to amplify a voltage from an oscillator. The phase shifter is operably connected to a driving amplitude control, wherein the phase shifter is configured to phase shift the amplified voltage and is configured to set an amplitude of the phase shifted voltage. The oscillator is operably connected to the driving amplitude control. The phase shifted voltage drives the oscillator. The oscillator is at an internal resonance condition, based at least on the amplitude of the phase shifted voltage, that stabilizes frequency oscillations in the oscillator.Type: GrantFiled: March 23, 2012Date of Patent: September 16, 2014Assignee: Uchicago Argonne, LLCInventors: Omar Daniel Lopez, Dario Antonio
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Publication number: 20130249630Abstract: An illustrative system includes an amplifier operably connected to a phase shifter. The amplifier is configured to amplify a voltage from an oscillator. The phase shifter is operably connected to a driving amplitude control, wherein the phase shifter is configured to phase shift the amplified voltage and is configured to set an amplitude of the phase shifted voltage. The oscillator is operably connected to the driving amplitude control. The phase shifted voltage drives the oscillator. The oscillator is at an internal resonance condition, based at least on the amplitude of the phase shifted voltage, that stabilizes frequency oscillations in the oscillator.Type: ApplicationFiled: March 23, 2012Publication date: September 26, 2013Inventors: Omar Daniel Lopez, Dario Antonio
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Patent number: 8361825Abstract: An apparatus includes a mechanical switch. The mechanical switch includes a bilayer with first and second stable curved states. A transformation of the bilayer from the first state to the second state closes the switch.Type: GrantFiled: October 11, 2011Date of Patent: January 29, 2013Assignee: Alcatel LucentInventors: Vladimir Anatolyevich Aksyuk, Omar Daniel Lopez, Flavio Pardo, Maria Elina Simon
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Publication number: 20120023738Abstract: An apparatus includes a mechanical switch. The mechanical switch includes a bilayer with first and second stable curved states. A transformation of the bilayer from the first state to the second state closes the switch.Type: ApplicationFiled: October 11, 2011Publication date: February 2, 2012Inventors: Vladimir Anatolyevich Aksyuk, Omar Daniel Lopez, Flavio Pardo, Maria Elina Simon
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Patent number: 8063456Abstract: An apparatus includes a mechanical switch. The mechanical switch includes a bilayer with first and second stable curved states. A transformation of the bilayer from the first state to the second state closes the switch.Type: GrantFiled: September 12, 2006Date of Patent: November 22, 2011Assignee: Alcatel LucentInventors: Vladimir Anatolyevich Aksyuk, Omar Daniel Lopez, Flavio Pardo, Maria Elina Simon
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Publication number: 20110192248Abstract: A nanopositioning system for producing a coupling interaction between a first nanoparticle and a second nanoparticle. A first MEMS positioning assembly includes an electro-static comb drive actuator configured to selectively displace a first nanoparticle in a first dimension and an electrode configured to selectively displace the first nanoparticle in a second dimensions. Accordingly, the first nanoparticle may be selectively positioned in two dimensions to modulate the distance between the first nanoparticle and a second nanoparticle that may be coupled to a second MEMS positioning assembly. Modulating the distance between the first and second nanoparticles obtains a coupling interaction between the nanoparticles that alters at least one material property of the nanoparticles applicable to a variety of sensing and control applications.Type: ApplicationFiled: February 7, 2011Publication date: August 11, 2011Inventors: Omar Daniel LOPEZ, Gary Wiederrecht, David J. Gosztola, Derrick C. Mancini
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Patent number: 7670203Abstract: A method of making a microelectromechanical microwave vacuum tube device is disclosed. The device is formed by defining structural regions and sacrificial regions in a substrate. The structural regions have flexural members. The substrate is treated to remove the sacrificial regions and release the structural regions such that the structural regions are moveable by the flexural members. The structural regions include a device cathode, a device grid or both a device cathode and a device grid. The cathode comprises electron emitters. The device further includes an output structure where amplified microwave power is removed from the device. In the method, the cathode surface and the grid surface are moved to a position where they are substantially parallel to each other and substantially perpendicular to the substrate. The device further comprises an anode that is substantially parallel to the cathode surface and the grid surface.Type: GrantFiled: January 3, 2007Date of Patent: March 2, 2010Assignee: Agere Systems Inc.Inventors: Peter Ledel Gammel, Richard Edwin Howard, Omar Daniel Lopez, Wei Zhu
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Patent number: 7440158Abstract: An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying amplitude and/or phase modulations of an incident light wavefront. The light source is configured to direct an illumination light beam towards the reconfigurable spatial light modulator such that the modulator produces a modulated outgoing light beam there from. The transmission filter is configured to spatially filter a light pattern formed by the outgoing light beam and to selectively transmit light from substantially only one diffractive order of the light pattern.Type: GrantFiled: March 2, 2007Date of Patent: October 21, 2008Assignee: Lucent Technologies Inc.Inventors: Randy Clinton Giles, Omar Daniel Lopez, Roland Ryf
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Publication number: 20080212159Abstract: An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying amplitude and/or phase modulations of an incident light wavefront. The light source is configured to direct an illumination light beam towards the reconfigurable spatial light modulator such that the modulator produces a modulated outgoing light beam there from. The transmission filter is configured to spatially filter a light pattern formed by the outgoing light beam and to selectively transmit light from substantially only one diffractive order of the light pattern.Type: ApplicationFiled: March 2, 2007Publication date: September 4, 2008Inventors: Randy Clinton Giles, Omar Daniel Lopez, Roland Ryf
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Patent number: 7402913Abstract: A method and apparatus for forming an electrically and/or thermally conducting interconnection is disclosed wherein a first surface and a second surface are contacted with each other via a plurality of nanostructures disposed on at least one of the surfaces. In one embodiment, a first plurality of areas of nanostructures is disposed on a component in an electronics package such as, illustratively, a microprocessor. The first plurality of areas is then brought into contact with a corresponding second plurality of areas of nanostructures on a substrate, thus creating a strong friction bond. In another illustrative embodiment, a plurality of nanostructures is disposed on a component, such as a microprocessor, which is then brought into contact with a substrate. Intermolecular forces result in an attraction between the molecules of the nanostructures and the molecules of the substrate, thus creating a bond between the nanostructures and the substrate.Type: GrantFiled: September 10, 2007Date of Patent: July 22, 2008Assignee: Lucent Technologies Inc.Inventors: Nagesh R Basavanhally, Raymond A Cirelli, Omar Daniel Lopez
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Publication number: 20080121947Abstract: A MEMS microphone is fabricated into an integrated physical device which also comprises a solar cell. The solar cell provides power to the MEMS microphone, and may do so with use of a capacitor, which may also be incorporated into the device, and serves to provide power to the MEMS microphone when the solar cell is unable to do so (e.g., at night). A wireless transmitter and antenna may also be incorporated into the device, in order to transmit acoustic data which has been captured by the MEMS microphone. In one embodiment of the invention, the MEMS microphone comprises a fixed backplate and a diaphragm, and the solar cell is advantageously comprised in the diaphragm thereof.Type: ApplicationFiled: September 14, 2006Publication date: May 29, 2008Inventors: Robert Eugene Frahm, Omar Daniel Lopez, Joseph Ashley Taylor
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Publication number: 20080060920Abstract: An apparatus includes a mechanical switch. The mechanical switch includes a bilayer with first and second stable curved states. A transformation of the bilayer from the first state to the second state closes the switch.Type: ApplicationFiled: September 12, 2006Publication date: March 13, 2008Inventors: Vladimir Anatolyevich Aksyuk, Omar Daniel Lopez, Flavio Pardo, Maria Elina Simon
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Patent number: 7327037Abstract: A method and apparatus for forming an electrically and/or thermally conducting interconnection is disclosed wherein a first surface and a second surface are contacted with each other via a plurality of nanostructures disposed on at least one of the surfaces. In one embodiment, a first plurality of areas of nanostructures is disposed on a component in an electronics package such as, illustratively, a microprocessor. The first plurality of areas is then brought into contact with a corresponding second plurality of areas of nanostructures on a substrate, thus creating a strong friction bond. In another illustrative embodiment, a plurality of nanostructures is disposed on a component, such as a microprocessor, which is then brought into contact with a substrate. Intermolecular forces result in an attraction between the molecules of the nanostructures and the molecules of the substrate, thus creating a bond between the nanostructures and the substrate.Type: GrantFiled: April 1, 2004Date of Patent: February 5, 2008Assignee: Lucent Technologies Inc.Inventors: Nagesh R Basavanhally, Raymond A Cirelli, Omar Daniel Lopez
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Patent number: 7259510Abstract: A microelectromechanical microwave vacuum tube device is disclosed. The device consists of a cathode formed on a substrate, the cathode comprising electron emitters. A cathode emission control grid is also attached to the device substrate. The device further includes an output structure where amplified microwave power is removed from the device. In the device, the cathode surface and the grid surface are substantially parallel to each other and substantially perpendicular to the substrate. One of either the cathode, the grid, or both the cathode and the grid, are attached to the device substrate by one or more flexural members. The device further comprises an anode that is substantially parallel to the cathode surface and the grid surface.Type: GrantFiled: August 30, 2000Date of Patent: August 21, 2007Assignee: Agere Systems Inc.Inventors: Peter Ledel Gammel, Richard Edwin Howard, Omar Daniel Lopez, Wei Zhu