Patents by Inventor Wei-Feng Tsai

Wei-Feng Tsai 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).

  • Publication number: 20250200309
    Abstract: A portable RFID tag reading system to be carried by an operator and including a reader with associated processing, the processing being programmed to record as a set the identity of all of the RFID tags in the range of the reader when the reader finds a specific RFID tag and to detect movement of the operator after the specific RFID tag is found by recognizing a change in RFID tags seen by the reader from the recorded set.
    Type: Application
    Filed: March 3, 2025
    Publication date: June 19, 2025
    Inventors: Walter D. Burnside, Wei-Feng Tsai
  • Patent number: 12150563
    Abstract: The combination of a pusher dispenser having a coil spring resiliently urging a plate towards a front of the dispenser, a track for guiding the plate, a bottom surface along the track, and an electrically non-conductive insert supported by the bottom surface and having a length, a plurality of RFID tags attached to the insert along its length, the insert supporting the RFID tags at a level adjacent and below an extension of the coil spring whereby an extension of the coil spring is effective to shield the RFID tags from a reader.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: November 26, 2024
    Assignee: DJB GROUP LLC
    Inventors: Walter D. Burnside, Jeffrey J. Burnside, Wei-Feng Tsai
  • Publication number: 20240277160
    Abstract: The combination of a pusher dispenser having a coil spring resiliently urging a plate towards a front of the dispenser, a track for guiding the plate, a bottom surface along the track, and an electrically non-conductive insert supported by the bottom surface and having a length, a plurality of RFID tags attached to the insert along its length, the insert supporting the RFID tags at a level adjacent and below an extension of the coil spring whereby an extension of the coil spring is effective to shield the RFID tags from a reader.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 22, 2024
    Inventors: Walter D. Burnside, Jeffrey J. Burnside, Wei-Feng Tsai
  • Patent number: 11928542
    Abstract: A system for detecting the direction of movement of an RFID tag along a path comprising two RFID portals, each of said portals being arranged to detect an RFID tag in a respective zone along the path, the zones being arranged to be effectively exclusive of one another, a RFID tag reader having an associated processor and multiple separate ports, each port being connected to one or the other of the portals, the processor being arranged to determine which portal first receives a RFID tag signal or signals and which portal subsequently receives a second signal from the same tag or tags detected by the first signal receiving portal, the processor providing a signal corresponding to a direction of movement, along the path from the first signal receiving portal to the second signal receiving portal.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: March 12, 2024
    Assignees: DJB GROUP LLC, WISTRON NEWEB CORPORATION
    Inventors: Walter D. Burnside, Wei-Feng Tsai
  • Publication number: 20230306211
    Abstract: A system for detecting the direction of movement of an RFID tag along a path comprising two RFID portals, each of said portals being arranged to detect an RFID tag in a respective zone along the path, the zones being arranged to be effectively exclusive of one another, a RFID tag reader having an associated processor and multiple separate ports, each port being connected to one or the other of the portals, the processor being arranged to determine which portal first receives a RFID tag signal or signals and which portal subsequently receives a second signal from the same tag or tags detected by the first signal receiving portal, the processor providing a signal corresponding to a direction of movement, along the path from the first signal receiving portal to the second signal receiving portal.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 28, 2023
    Inventors: Walter D. Burnside, Wei-Feng Tsai
  • Publication number: 20230153555
    Abstract: A portable RFID tag reading system to be carried by an operator and including a reader with associated processing, the processing being programmed to record as a set the identity of all of the RFID tags in the range of the reader when the reader finds a specific RFID tag and to detect movement of the operator after the specific RFID tag is found by recognizing a change in RFID tags seen by the reader from the recorded set.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 18, 2023
    Inventors: Walter D. Burnside, Wei-Feng Tsai
  • Publication number: 20220180081
    Abstract: An RFID tag reading system arranged to by carried by an operator while the operator's hands and arms remain free to accomplish tasks, the system including an RFID reader and a computer interconnected to the reader to control functions the reader and receive data generated by the reader, the computer being responsive to word commands from the operator to effectuate different functions of the reader.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 9, 2022
    Inventors: Walter D. Burnside, Chi-Hao Tsai, Wei-Feng Tsai
  • Publication number: 20170098760
    Abstract: Transition metal dichalcogenide (TMD)-based spintronics devices, each including a TMD thin film layer, a first gate electrode, a first insulating layer sandwiched between the TMD thin film layer and the first gate electrode, a second gate electrode, and a second insulating layer sandwiched between the TMD thin film layer and the second gate electrode. Such a device, when also including a source electrode and a drain electrode, functions as a spin filter. On the other hand, when also including one source electrode and two drain electrode terminals, such a device functions as a spin separator. Also disclosed are methods of using the above-described TMD-based spintronics devices.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 6, 2017
    Inventors: Hsin Lin, Wei-Feng Tsai, Cheng-Yi Huang, Horng-Tay Jeng, Tay-Rong Chang, Gaurav Gupta, Gengchiau Liang, Arun Bansil
  • Patent number: 9548382
    Abstract: Provided in one embodiment is a device, comprising: a substrate; and a layer disposed over the substrate, wherein the layer comprises a monolayer of crystals comprising a Group IV element.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: January 17, 2017
    Assignees: Northeastern University, National Sun Yat-sen University, National Tsing Hua University
    Inventors: Horng-Tay Jeng, Tay-Rong Chang, Arun Bansil, Hsin Lin, Wei-Feng Tsai, Cheng-Yi Huang
  • Publication number: 20150270376
    Abstract: Provided in one embodiment is a device, comprising: a substrate; and a layer disposed over the substrate, wherein the layer comprises a monolayer of crystals comprising a Group IV element.
    Type: Application
    Filed: October 11, 2013
    Publication date: September 24, 2015
    Inventors: Horng-Tay Jeng, Tay-Rong Chang, Arun Bansil, Hsin Lin, Wei-Feng Tsai, Cheng-Yi Huang