Patents by Inventor Phuong T. Le

Phuong T. Le 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: 11770723
    Abstract: A system for determining a distance between a receiver and a transmitter are disclosed herein. The transmitter includes a first antenna array having a first spatial orientation and is configured to transmit a signal. The receiver includes a second antenna array and an orientation sensor to determine a second spatial orientation of the second antenna array and is configured to receive the signal. A logic circuit is configured compare the first spatial orientation to the second spatial orientation to determine a relative orientation of the second antenna array; determine an angle of arrival of the signal; identify, based on the relative orientation of the second antenna array and the angle of arrival of the signal, a received signal strength compensation value; and calculate a distance between the transmitter and the receiver based on a measured received signal strength of the signal and the identified compensation value.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: September 26, 2023
    Assignee: Zebra Technologies Corporation
    Inventors: Vinh-Phuong T. Le, Thomas E. Warner, Edward W. Geiger
  • Publication number: 20230171616
    Abstract: A system for determining a distance between a receiver and a transmitter are disclosed herein. The transmitter includes a first antenna array having a first spatial orientation and is configured to transmit a signal. The receiver includes a second antenna array and an orientation sensor to determine a second spatial orientation of the second antenna array and is configured to receive the signal. A logic circuit is configured compare the first spatial orientation to the second spatial orientation to determine a relative orientation of the second antenna array; determine an angle of arrival of the signal; identify, based on the relative orientation of the second antenna array and the angle of arrival of the signal, a received signal strength compensation value; and calculate a distance between the transmitter and the receiver based on a measured received signal strength of the signal and the identified compensation value.
    Type: Application
    Filed: January 11, 2023
    Publication date: June 1, 2023
    Inventors: Vinh-Phuong T. Le, Thomas E. Warner, Edward W. Geiger
  • Patent number: 11582621
    Abstract: A radio frequency (RF) device includes a spatial orientation sensor and logic circuit configured to determine spatial orientation of the RF device relative to a reference position or relative to a RF transmitter. In particular, the RF device determines a distance between the RF receiver and the RF transmitter based on a received signal strength of the signal and a determined spatial orientation of the RF device, by determining an orientation compensation value from a stored orientation compensation profile and determining a resulting compensated received signal strength. The RF device is thereby able to determine distance in an orientationally-invariant manner.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: February 14, 2023
    Assignee: Zebra Technologies Corporation
    Inventors: Vinh-Phuong T. Le, Thomas E. Warner, Edward W. Geiger
  • Patent number: 11023696
    Abstract: Methods, systems and apparatus for detecting object location and generating alerts are disclosed herein. An example disclosed method includes determining an assigned area for an object being handled by a loader; detecting a first location of the loader; determining whether the first location corresponds to the assigned area for the object; and in response to the first location not corresponding to the assigned area for the object, generating a first output indicative of a difference between the first location and the assigned area for the object.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: June 1, 2021
    Assignee: Symbol Technologies, LLC
    Inventors: Sunalini Sankhavaram, Christopher Wuest, Guy Solimine, Nicholas J. Ford, Vinh-Phuong T. Le, Edward W. Geiger, Yu Wan, Mahender R. Vangati, David Tan Nguyen, Sudhakar Reddy
  • Publication number: 20210136600
    Abstract: A radio frequency (RF) device includes a spatial orientation sensor and logic circuit configured to determine spatial orientation of the RF device relative to a reference position or relative to a RF transmitter. In particular, the RF device determines a distance between the RF receiver and the RF transmitter based on a received signal strength of the signal and a determined spatial orientation of the RF device, by determining an orientation compensation value from a stored orientation compensation profile and determining a resulting compensated received signal strength. The RF device is thereby able to determine distance in an orientationally-invariant manner.
    Type: Application
    Filed: October 30, 2019
    Publication date: May 6, 2021
    Inventors: Vinh-Phuong T. Le, Thomas E. Warner, Edward W. Geiger
  • Publication number: 20190332835
    Abstract: Methods, systems and apparatus for detecting object location and generating alerts are disclosed herein. An example disclosed method includes determining an assigned area for an object being handled by a loader; detecting a first location of the loader; determining whether the first location corresponds to the assigned area for the object; and in response to the first location not corresponding to the assigned area for the object, generating a first output indicative of a difference between the first location and the assigned area for the object.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: Sunalini Sankhavaram, Christopher Wuest, Guy Solimine, Nicholas J. Ford, Vinh-Phuong T. Le, Ed W. Geiger, Yu Wan, Mahender R. Vangati, David Tan Nguyen, Sudhakar Reddy
  • Publication number: 20180060625
    Abstract: Methods, systems and apparatus for detecting object location and generating alerts are disclosed herein. An example disclosed method includes determining an assigned area for an object being handled by a loader; detecting a first location of the loader; determining whether the first location corresponds to the assigned area for the object; and in response to the first location not corresponding to the assigned area for the object, generating a first output indicative of a difference between the first location and the assigned area for the object.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 1, 2018
    Inventors: Sunalini Sankhavaram, Christopher S. Wuest, Guy Solimine, Nicholas J. Ford, Vinh-Phuong T. Le, Edward W. Geiger, Yu Wan, Mahender R. Vangati, David Tan Nguyen, Sudhakar Reddy
  • Patent number: 8618650
    Abstract: In accordance with one or more embodiments, a flange package comprises a flange and an interposer having two or more fingers disposed in an interposer trench. The flange has a mold lock formed about a periphery of the interposer trench. A dielectric ring comprising a dielectric material is formed in the interposer trench, and in and around the periphery of the mold lock. A semiconductor die is disposed within the dielectric ring having gate pads and source pads formed on a first side, and having drain pads disposed on a second side of the die. The gate pads are coupled to the interposer and the source pads are coupled to the flange. A gate lead is coupled to the interposer and a drain lead is coupled to the drain pads. Other embodiments are disclosed.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 31, 2013
    Assignee: Estivation Properties LLC
    Inventors: Alex Elliott, Phuong T. Le
  • Patent number: 8338937
    Abstract: In accordance with one or more embodiments, a flange package comprises a flange and an interposer having two or more fingers disposed in an interposer trench. The flange has a mold lock formed about a periphery of the interposer trench. A dielectric ring comprising a dielectric material is formed in the interposer trench, and in and around the periphery of the mold lock. A semiconductor die is disposed within the dielectric ring having gate pads and source pads formed on a first side, and having drain pads disposed on a second side of the die. The gate pads are coupled to the interposer and the source pads are coupled to the flange. A gate lead is coupled to the interposer and a drain lead is coupled to the drain pads. Other embodiments are disclosed.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: December 25, 2012
    Assignee: Estivation Properties LLC
    Inventors: Alex Elliott, Phuong T. Le
  • Publication number: 20100032825
    Abstract: In accordance with one or more embodiments, a flange package comprises a flange and an interposer having two or more fingers disposed in an interposer trench. The flange has a mold lock formed about a periphery of the interposer trench. A dielectric ring comprising a dielectric material is formed in the interposer trench, and in and around the periphery of the mold lock. A semiconductor die is disposed within the dielectric ring having gate pads and source pads formed on a first side, and having drain pads disposed on a second side of the die. The gate pads are coupled to the interposer and the source pads are coupled to the flange. A gate lead is coupled to the interposer and a drain lead is coupled to the drain pads. Other embodiments are disclosed.
    Type: Application
    Filed: July 21, 2009
    Publication date: February 11, 2010
    Applicant: HVVI Semiconductors, Inc.
    Inventors: Alex Elliott, Phuong T. Le