Patents by Inventor Vinh-Phuong Tra Le

Vinh-Phuong Tra 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: 7742456
    Abstract: Described is a method for locationing in a communications network. A wireless access point receives a signal corresponding to activity of a plurality of wireless devices on a predetermined bandwidth. The signal is processed to generate a plurality of subsignals using a predetermined signal processing procedure. An energy level of a particular subsignal of the plurality of subsignals is determined. A location of a corresponding wireless device is determined as a function of the energy level and a predetermined locationing procedure.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 22, 2010
    Assignee: Symbol Technologies, Inc.
    Inventors: Dean Kawaguchi, Vinh-Phuong Tra Le
  • Patent number: 7688782
    Abstract: Described is a system and method for managing multi-channel communication. The system includes a plurality of wireless devices communicating by utilizing at least one wireless communications channels. A network management arrangement controls allocation of the wireless communications channels and divides the wireless channels into a first channel pool and a second channel pool. The second pool including at least one channel. The arrangement utilizes the second pool only upon detection of a predetermined condition.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: March 30, 2010
    Assignee: Symbol Technologies, Inc.
    Inventors: Dean Kawaguchi, Vinh-Phuong Tra Le
  • Patent number: 7593715
    Abstract: Described is a method for detecting activity on a frequency band. A wireless signal of a predetermined radio frequency band is received. The signal is processed into a plurality of subsignals, each subsignal corresponding to a particular radio frequency channel of the band. An energy level of the corresponding subsignal is determined, and, when the energy level is greater than a predetermined level, the corresponding channel is analyzed.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: September 22, 2009
    Assignee: Symbol Technologies, Inc.
    Inventors: Kevin Prest, Vinh-Phuong Tra Le
  • Patent number: 7437127
    Abstract: A wireless coverage map of a wireless network is generated as a function of a location of at least one access point and a first signal data collected at a plurality of locations within the network. The first signal data includes a first signal strength of a wireless signal communicated between the at least one access point and a wireless device. A second signal data is received. The second signal data includes a second signal strength of a further wireless signal communicated between one of the at least one access point and a further wireless device. The existence of the predetermined wireless network coverage condition is determined as a function of the second signal data and the wireless coverage map.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: October 14, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: David P. Goren, Vinh-Phuong Tra Le, Benjamin Bekritsky, Guang Zeng
  • Publication number: 20070280155
    Abstract: Described is a device and method for optimizing communications in a wireless network. The device comprises a first wireless transceiver communicating using a first channel of a first frequency band, a second wireless transceiver communicating using a second channel of a second frequency band, and a processor selecting one of the first and second transceivers for transmission of a wireless signal to a further device as a function of destination data of the further device. The further device includes a third transceiver communicating using one of the first and second frequency bands.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 6, 2007
    Inventors: Vinh-Phuong Tra Le, Dean Kawaguchi
  • Publication number: 20070097912
    Abstract: Described is a system and method for managing multi-channel communication. The system includes a plurality of wireless devices communicating by utilizing at least one wireless communications channels. A network management arrangement controls allocation of the wireless communications channels and divides the wireless channels into a first channel pool and a second channel pool. The second pool including at least one channel. The arrangement utilizes the second pool only upon detection of a predetermined condition.
    Type: Application
    Filed: November 3, 2005
    Publication date: May 3, 2007
    Inventors: Dean Kawaguchi, Vinh-Phuong Tra Le