Patents by Inventor Dean Au

Dean Au 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: 20240107179
    Abstract: The various embodiments illustrated herein disclose a method for operating an imaging device. the method includes activating a first image sensor at a first duty cycle within a first time period. The method further includes activating a second image sensor at a second duty cycle within the first time period. Additionally, the method includes modifying at least one of the first duty cycle or the second duty cycle based on at least a workflow associated an operator of the imaging device.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 28, 2024
    Inventors: Patrick Anthony GIORDANO, David M. WILZ, Jeffrey Dean HARPER, Ka Man AU, Benjamin HEJL
  • Patent number: 7836166
    Abstract: The service set identification (SSID) of an access point (AP) in a wireless local area network (WLAN), where the AP suppresses its SSID in beacon frames broadcasted by the AP, is determined. At a detector located in the WLAN, a probe request broadcasted by a station through the WLAN is received. At the detector, a probe response sent by the AP to the station through the WLAN in response to the probe request broadcasted by the station is received. At the detector, the SSID of the AP is obtained from the received probe response.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: November 16, 2010
    Assignee: Airmagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Patent number: 7711809
    Abstract: In a wireless local area network a probe request frame is transmitted over the wireless local area network by a station. The probe request frame is received at a detector in the wireless local area network. The received probe request frame is analyzed to determine if the station that transmitted the probe request frame is an unauthorized station.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: May 4, 2010
    Assignee: Airmagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Patent number: 7702775
    Abstract: A wireless local area network (WLAN) is monitored by receiving transmissions exchanged between one or more stations and an access point (AP) in the WLAN using a detector located in the WLAN. A database is compiled based on the received transmissions. The received transmissions are analyzed to determine the state of a station. The compiled database and the determined state of the station are used to diagnose connectivity problems of the station.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: April 20, 2010
    Assignee: Airmagnet Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Patent number: 7539146
    Abstract: In a wireless local area network, beacon frames are transmitted over the wireless local area network by one or more access points. The beacon frames are received at a detector in the wireless local area network. The received beacon frames are analyzed at the detector to detect a counterfeit access point in the wireless local area network.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: May 26, 2009
    Assignee: AirMagnet, Inc.
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au
  • Patent number: 7385948
    Abstract: In a wireless local area network, transmissions exchanged between a station and an access point is received using a detector located adjacent to the station. The received transmissions are analyzed to determine the state of the station, where the state of the station indicates whether the station has authenticated and/or associated with the access point in the wireless local area network.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: June 10, 2008
    Assignee: Airmagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Patent number: 7292562
    Abstract: A method and system for measuring the throughput of transmissions over a wireless local area network having a station and an access point. The station can send messages to the access point during a test period, where the messages can be sent as data frames. The access point can receive messages sent from the station during the test period. For messages received by the access point, the access point can send acknowledgements to the station, where the acknowledgements can be sent as control frames. The station can receive acknowledgements from the access point for messages received by the access point. The station can determine a throughput from the station to the access point for the test period based on the acknowledgements received at the station from the access point during the test period.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: November 6, 2007
    Assignee: Airmagnet, Inc.
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au
  • Patent number: 7289465
    Abstract: In a wireless local area network, transmissions exchanged between a station and an access point is received using a detector located adjacent to the station. The received transmissions are analyzed to determine the state of the station, where the state of the station indicates whether the station has authenticated and/or associated with the access point in the wireless local area network.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: October 30, 2007
    Assignee: Airmagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Publication number: 20070242610
    Abstract: In a wireless local area network, beacon frames are transmitted over the wireless local area network by one or more access points. The beacon frames are received at a detector in the wireless local area network. The received beacon frames are analyzed at the detector to detect a counterfeit access point in the wireless local area network.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 18, 2007
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au
  • Publication number: 20070223418
    Abstract: In a wireless local area network, transmissions exchanged between a station and an access point is received using a detector located adjacent to the station. The received transmissions are analyzed to determine the state of the station, where the state of the station indicates whether the station has authenticated and/or associated with the access point in the wireless local area network.
    Type: Application
    Filed: May 17, 2007
    Publication date: September 27, 2007
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Patent number: 7236460
    Abstract: In a wireless local area network, beacon frames are transmitted over the wireless local area network by one or more access points. The beacon frames are received at a detector in the wireless local area network. The received beacon frames are analyzed at the detector to detect a counterfeit access point in the wireless local area network.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: June 26, 2007
    Assignee: Airmagnet, Inc.
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au
  • Publication number: 20070036091
    Abstract: A method and system for detecting a hidden node in a wireless local area network having a first station, a second station, and an access point. The first station can send a message, where the message can be sent as a data frame. After receiving the message, the access point can send the message to the second station. The second station can receive the message from the access point. In response to receiving the message, the second station can send an acknowledgement to the access point, where the acknowledgement can be sent as a control frame. The first station can monitor for the acknowledgement sent from the second station to the access point.
    Type: Application
    Filed: October 25, 2006
    Publication date: February 15, 2007
    Applicant: AirMagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Patent number: 7130289
    Abstract: A method and system for detecting a hidden node in a wireless local area network having a first station, a second station, and an access point. The first station can send a message, where the message can be sent as a data frame. After receiving the message, the access point can send the message to the second station. The second station can receive the message from the access point. In response to receiving the message, the second station can send an acknowledgement to the access point, where the acknowledgement can be sent as a control frame. The first station can monitor for the acknowledgement sent from the second station to the access point.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: October 31, 2006
    Assignee: Airmagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Publication number: 20060114875
    Abstract: A method and system for measuring the throughput of transmissions over a wireless local area network having a station and an access point. The station can send messages to the access point during a test period, where the messages can be sent as data frames. The access point can receive messages sent from the station during the test period. For messages received by the access point, the access point can send acknowledgements to the station, where the acknowledgements can be sent as control frames. The station can receive acknowledgements from the access point for messages received by the access point. The station can determine a throughput from the station to the access point for the test period based on the acknowledgements received at the station from the access point during the test period.
    Type: Application
    Filed: January 13, 2006
    Publication date: June 1, 2006
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au
  • Patent number: 7009957
    Abstract: A method and system for measuring the throughput of transmissions over a wireless local area network having a station and an access point. The station can send messages to the access point during a test period, where the messages can be sent as data frames. The access point can receive messages sent from the station during the test period. For messages received by the access point, the access point can send acknowledgements to the station, where the acknowledgements can be sent as control frames. The station can receive acknowledgements from the access point for messages received by the access point. The station can determine a throughput from the station to the access point for the test period based on the acknowledgements received at the station from the access point during the test period.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 7, 2006
    Assignee: AirMagnet, Inc.
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au
  • Publication number: 20040236851
    Abstract: The service set identification (SSID) of an access point (AP) in a wireless local area network (WLAN), where the AP suppresses its SSID in beacon frames broadcasted by the AP, is determined. At a detector located in the WLAN, a probe request broadcasted by a station through the WLAN is received. At the detector, a probe response sent by the AP to the station through the WLAN in response to the probe request broadcasted by the station is received. At the detector, the SSID of the AP is obtained from the received probe response.
    Type: Application
    Filed: June 28, 2004
    Publication date: November 25, 2004
    Applicant: AirMagnet, Inc.
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Publication number: 20030224797
    Abstract: A wireless local area network (WLAN) is monitored by receiving transmissions exchanged between one or more stations and an access point (AP) in the WLAN using a detector located in the WLAN. A database is compiled based on the received transmissions. The received transmissions are analyzed to determine the state of a station. The compiled database and the determined state of the station are used to diagnose connectivity problems of the station.
    Type: Application
    Filed: April 8, 2003
    Publication date: December 4, 2003
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Publication number: 20030221006
    Abstract: In a wireless local area network a probe request frame is transmitted over the wireless local area network by a station. The probe request frame is received at a detector in the wireless local area network. The received probe request frame is analyzed to determine if the station that transmitted the probe request frame is an unauthorized station.
    Type: Application
    Filed: April 4, 2002
    Publication date: November 27, 2003
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Publication number: 20030189908
    Abstract: In a wireless local area network, transmissions exchanged between a station and an access point is received using a detector located adjacent to the station. The received transmissions are analyzed to determine the state of the station, where the state of the station indicates whether the station has authenticated and/or associated with the access point in the wireless local area network.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 9, 2003
    Inventors: Chia-Chee Kuan, Miles Wu, Dean Au
  • Publication number: 20030185244
    Abstract: In a wireless local area network, beacon frames are transmitted over the wireless local area network by one or more access points. The beacon frames are received at a detector in the wireless local area network. The received beacon frames are analyzed at the detector to detect a counterfeit access point in the wireless local area network.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Inventors: Miles Wu, Chia-Chee Kuan, Dean Au