Patents by Inventor An Nguyen

An Nguyen 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: 11297703
    Abstract: Methods and systems for improved dimming of LED based illumination devices are described herein. An AC input voltage provided to an LED driver is rectified and the rectified signal is divided down by a voltage divider circuit to supply electrical power to a dimming interface circuit. The fraction by which the voltage divider circuit divides down the rectified signal is controlled by a Dynamic Input Voltage Compensator (DIVC) based on the peak value of the rectified signal. In this manner, the DIVC increases the range of AC input voltage to the LED driver while maintaining efficiency and stability of the LED based illumination system by reducing the variation of the voltage supplied to the dimming interface circuit over a larger range of AC input voltage.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: April 5, 2022
    Assignee: Cuvee Systems, Inc.
    Inventors: Dongsheng Zhou, Lanh Cong Nguyen
  • Patent number: 11297068
    Abstract: Concepts and technologies of network service control for anchoring client devices for network service access control are provided herein. In one aspect of the concepts and technologies disclosed herein, a system is provided and can include a processor and a memory storing computer-executable instructions that, upon execution of the processor, configure the processor to perform operations. The operations can include receiving an anchor instantiation command to anchor one or more client devices to an authorized service location. The anchor instantiation command can initiate an anchor instantiation time period. The operations can include determining, during the anchor instantiation time period, a plurality of anchor attributes associated with the one or more client devices at the authorized location.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 5, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Richard E. Marsh, Abtine Najand, Wesley Nguyen
  • Publication number: 20220103820
    Abstract: Decoder for block-based decoding of an encoded picture signal using transform decoding, configured to select for a predetermined block a selected transform mode, entropy decode a block to be dequantized, which is associated with the predetermined block according to the selected transform mode, from a data stream and dequantize the block to be dequantized using a quantization accuracy, which depends on the selected transform mode, to obtain a dequantized block.
    Type: Application
    Filed: December 10, 2021
    Publication date: March 31, 2022
    Inventors: Benjamin BROSS, Phan Hoang Tung NGUYEN, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20220098374
    Abstract: Methods of making a crosslinked fluorescent latex are provided. In an embodiment, such a method comprises adding a water-soluble initiator to an uncrosslinked fluorescent latex comprising water and uncrosslinked resin particles comprising an unsaturated resin and a fluorescent agent incorporated therein; and exposing the water-soluble initiator to conditions to activate the water-soluble initiator and induce crosslinking reactions between the activated water-soluble initiator and the unsaturated resin, thereby forming a crosslinked fluorescent latex comprising crosslinked fluorescent resin particles comprising crosslinked resin and the fluorescent agent incorporated therein. Crosslinked fluorescent latexes are also provided, as are fluorescent toners made from the same.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Inventors: Chunliang Lu, Peter V. Nguyen
  • Publication number: 20220099083
    Abstract: A diaphragm pump assembly can include a pump drive chamber, a first pump diaphragm chamber, and a second pump diaphragm chamber. The assembly can include a pump motor configured to rotate a motor shaft extending into the pump drive chamber. The assembly can include a cam connected to the motor shaft and configured to rotate in response to rotation of the motor shaft. The assembly can include a drive yoke having a yoke frame and a yoke pocket having a first wall and a second wall parallel and opposite the first wall. First and second pistons can connect to the drive yoke and to first and second diaphragms, respectively. The diameter of the cam can be less than and within 5% the width of yoke pocket and the yoke can be configured to move the pistons along a straight line.
    Type: Application
    Filed: November 11, 2021
    Publication date: March 31, 2022
    Inventors: Robert E. Gledhill, III, John Nguyen
  • Publication number: 20220099804
    Abstract: The invention relates to a receiving device (26) for an optical measurement apparatus (12) for capturing objects (18) in a monitoring region (16), to a light signal redirection device (40), to an optical measurement apparatus (12) and to a method for operating a receiving device (26). The receiving device (26) comprises at least one light signal redirection device (40) for redirecting light signals (32) from the monitoring region (16) to at least one receiver (36) of the receiving device (26) and at least one receiver (36) for receiving and for converting the light signals (22) into electric signals. The at least one light signal redirection device (40) has at least one redirection region (42b), which can act on the light signals (22) so as to change their direction. Furthermore, the receiving device (26) comprises at least one drive device (50) with which the at least one redirection region (42b) can be set. At least one redirection region (42b) has at least one diffractive structure.
    Type: Application
    Filed: January 22, 2020
    Publication date: March 31, 2022
    Applicant: Valeo Schalter und Sensoren GmbH
    Inventors: Thomas Schuler, Ho Hoai Duc Nguyen, Petr Hovorka, Felix Müller, Werner Hartmann, Spandan Shroff
  • Publication number: 20220102937
    Abstract: An optical subassembly includes a housing, a laser package, and first and second end sections of side-emitting optical fiber. The housing defines first, second, and third channels which extend from a central space. The laser package is affixed to the third channel and comprises an edge-emitting UV-C laser diode disposed in the central space and having first and second edges. The first end section of side-emitting optical fiber is retained in the first channel and has a first end face which confronts the first edge. The second end section of side-emitting optical fiber is retained in the second channel and has a second end face which confronts the second edge. The housing further defines a fourth channel which extends from the central space. The optical subassembly further includes a transparent window seated in an opening of the fourth channel.
    Type: Application
    Filed: August 6, 2021
    Publication date: March 31, 2022
    Applicant: The Boeing Company
    Inventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Lyndon G. Mazon
  • Publication number: 20220104263
    Abstract: In one aspect, a method of wireless communication includes receiving, by a first user equipment (UE), a first transmission from a second UE for a new radio (NR) sidelink channel. The method also includes receiving, by the first UE, a second transmission from a third UE for the sidelink channel. The method further includes transmitting, by the first UE, a feedback transmission based on a medium contention event for the first and second transmissions of the NR sidelink channel and on a range condition. In additional aspects, the feedback transmission is transmitted based on a quality condition, or both a range condition and a quality condition. Other aspects and features are also claimed and described.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: Sourjya Dutta, Tien Viet Nguyen, Kapil Gulati, Gabi Sarkis
  • Publication number: 20220097202
    Abstract: Apparatus and methods relating to chemical mechanical polishing (CMP) are described herein. An edge load ring (ELR) is configured to fit inside a retaining ring of a CMP head. The ELR includes an annular body having an inner surface and an outer surface opposite the inner surface, the outer surface having a diameter configured to slip inside a retaining ring. The annular body includes a body portion formed from a first material and a bottom projection extending below the body portion. The bottom projection has a bottom surface facing away from the body portion, and the bottom projection is formed form a second material different from the first material. The annular body includes a venting feature formed through the annular body, the venting feature being in fluid communication between the inner and outer surfaces.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventors: Uday PAI, Jeonghoon OH, Van H. NGUYEN
  • Publication number: 20220096677
    Abstract: High-energy optical disinfection systems inside a commercial airplane using highly efficient, flexible, and durable side-emitting optical fibers optically coupled to high-energy UV-C laser diodes to destroy submicroscopic infectious agents and inactivate microorganisms inside the airplane. With the high-energy UV-C laser diodes optically coupled to the side-emitting optical fibers, which can be easily routed to different areas inside the airplane, the high-energy UV-C laser light emitted from the side of the optical fiber will disinfect the airplane along a wide or long swath continuously without interruption.
    Type: Application
    Filed: August 6, 2021
    Publication date: March 31, 2022
    Applicant: The Boeing Company
    Inventors: Eric Y. Chan, Dennis G. Koshinz, Kim Quan Anh Nguyen, Lyndon G. Mazon
  • Publication number: 20220100292
    Abstract: A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 31, 2022
    Inventors: Crystal NGUYEN, Evan GRIFFITH, Seth J. BISHOP, Stephen J. TELFER, Kosta LADAVAC, Andrew A. DRABEK, Sunil Krishna SAINIS, Richard J. PAOLINI, JR., Samantha MORRILL
  • Publication number: 20220097887
    Abstract: A fin sealer and method to seal a radially outwardly directed fin of a tubular web structure by directing the fin through a nip between a first and a second fin sealing rollers while communicating heat to the fin through at least one of the fin sealing rollers is provided. The fin sealer is configured to maintain a nominal face-to-face relation between an outer annulus of the first fin sealing roller and an outer annulus of the second fin sealing roller with a flexible connection between a hub element of the second fin sealing roller with the outer annulus of the second fin sealing roller.
    Type: Application
    Filed: December 14, 2021
    Publication date: March 31, 2022
    Applicant: Altria Client Services LLC
    Inventors: Jarrod W. CHALKLEY, James D. EVANS, Thien Hoang NGUYEN, Patrick S. MCELHINNEY
  • Publication number: 20220101219
    Abstract: A system for optimizing energy obtained from at least one energy source and methods for making and using the same. By monitoring an operating environment of the energy source and an operational status of the energy source itself, the energy optimization system establishes and maintains an operating region of the energy source to optimize the energy supplied by the energy source and adjusts the operating region, as needed, for adapting to any changes in the operating environment or the operational status in real time. The energy optimization system thereby can enable the energy source to continuously operate at new peak efficiency and power. A supplemental control system can provide enhanced monitoring, commanding, and controlling for the energy optimization system. The energy optimization system advantageously can be utilized to optimize the energy obtained from renewable energy sources, such as solar, wind, tidal and thermal energy sources.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 31, 2022
    Inventor: Son H. Nguyen
  • Publication number: 20220101304
    Abstract: Systems and/or techniques for facilitating relay attack prevention for electronic quick response (QR) codes are provided. In various embodiments, a system can determine a cardinality and a frame rate. In various aspects, the system can transmit a first electronic instruction to a mobile device, which can cause the mobile device to generate a set of interlaced frames having the determined cardinality. In various cases, the set of interlaced frames can respectively correspond to a set of portions of an electronic QR code, such that different frames from the set of interlaced frames depict different portions from the set of portions of the electronic QR code. In various aspects, the first electronic instruction can further cause the mobile device to sequentially render, at the determined frame rate, the set of interlaced frames on an electronic display of the mobile device.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventors: Abraham Joseph Kang, Faisal M. Khan, Bharat Chandra Penta, Vinh Nguyen
  • Publication number: 20220100009
    Abstract: Tunable devices and methods for fine tuning the optical responses of thin film devices post fabrication are described. This approach modifies the refractive indices of the chalcogenide glass thin films incorporated into the devices, and using this change in the refractive indices to fine tune the optical responses of the devices. Thermal annealing may be used to modify the refractive index. Thermal annealing provides good uniformity in large-area devices and may be applied to multi-layer structures.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: Jesse Frantz, Jason Myers, Vinh Q. Nguyen, Jasbinder Sanghera, Robel Bekele, Anthony Romano Clabeau
  • Publication number: 20220096534
    Abstract: Pharmaceutical compositions for and methods of treating an animal, including a human, and methods of preparing such compositions. The pharmaceutical compositions contain crosslinked amine polymers and may be used, for example, to treat diseases or other metabolic conditions in which removal of protons and/or chloride ions from the gastrointestinal tract would provide physiological benefits such as normalizing serum bicarbonate concentrations and the blood pH in an animal, including a human.
    Type: Application
    Filed: December 9, 2021
    Publication date: March 31, 2022
    Inventors: Gerrit KLAERNER, Eric F. CONNOR, Randi K. GBUR, Matthew J. KADE, Paul H. KIERSTEAD, Jerry M. BUYSSE, Michael J. COPE, Kalpesh N. BIYANI, Son H. NGUYEN, Scott M. TABAKMAN
  • Publication number: 20220096371
    Abstract: A transdermal, biodegradable microneedle system and method for treating pain in a patient. The transdermal easy-to-use biodegradable microneedle system can be fully embedded into the skin to perform a sustained and nearly zero-order release kinetics of therapeutics over a long period of time (at least 30 days) for the treatment of pain.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 31, 2022
    Inventors: Thanh D. Nguyen, Nicholas Farrell
  • Publication number: 20220097115
    Abstract: A method of adjusting a position of a blank entering a furnace includes measuring a position of a heated blank exiting the furnace, recording one or more offset values from a nominal value of the heated blank exiting the furnace, calculating a revised position of a subsequent blank entering the furnace as a function of the one or more offset values, and adjusting a position of the subsequent blank entering the furnace as a function of the one or more offset values. The position of the heated blank exiting the furnace can be measured with an electronic vision system, a robot can adjust the position of the subsequent blank, and offset value(s) can be an elapsed furnace operation time, a number of heated blanks that have exited the furnace, and a physical dimension between an actual position of the heated blank and the nominal value of the heated blank.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Applicant: Ford Global Technologies, LLC
    Inventors: Raj Sohmshetty, Elizabeth Bullard, Kyle Lee Fleeger, Robert Hess, Nguyen Phan
  • Publication number: 20220102116
    Abstract: A matching network for a system having a non-linear load and powered by a first RF power supply operating at a first frequency and a second RF power supply operating at a second frequency. The matching network includes a first matching network section for providing an impedance match between the first power supply and the load. The matching network also includes a second matching network section for providing an impedance match between the second power supply and the load. A the first matching network section includes a first variable reactance, and the variable reactance is controlled in accordance with IMD sensed in the signal applied to the load by the first RF power supply. The variable reactance is adjusted in accordance with the IMD to reduce the detected IMD.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Jin HUH, Aaron T. Radomski, Duy Nguyen, Soohan Kim
  • Publication number: 20220098729
    Abstract: The present disclosure relates to a method for cleaning one or more chamber components having contaminants. The method includes introducing a gas mixture to a remote plasma source, the gas mixture includes argon, an oxygen-containing gas and a nitrogen-containing gas. The argon to oxygen gas ratio in the gas mixture is about 0.2:1 to about 1:1 by volume. A plasma is formed from the gas mixture in the remote plasma source. The plasma includes oxygen radicals, argon radicals, and nitrogen radicals. The plasma is introduced to a process volume of the process chamber and exposes surfaces of one or more chamber components. The process volume of the process chamber has a pressure of about 10 mTorr to about 6 Torr and a temperature above 300° C.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventors: Fei WU, Abdul Aziz KHAJA, Amit Kumar BANSAL, Tuan Anh (Mike) NGUYEN, Qian SUI