Patents by Inventor Merwyn Andrade

Merwyn Andrade 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: 9019911
    Abstract: A wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Specifically, a network device may receive a plurality of request messages on a plurality of wireless communication channels through a plurality of access points. The request messages are originated from a single station. Furthermore, the network can extract a plurality of channel identifiers from the request messages, and generates a filtered radio frequency neighborhood list dynamically based on the extracted channel identifiers.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: April 28, 2015
    Assignee: Aruba Networks, Inc.
    Inventors: Pradeep J. Iyer, Partha Narasimhan, Merwyn Andrade, John Taylor
  • Patent number: 8750272
    Abstract: In one embodiment of the invention, a wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Coupled to the access points over an interconnect, the wireless network switch is adapted to receive a DEAUTHENTICATION message sent by one of the plurality of access points in the same coverage area of the station so as to detect the DEAUTHENTICATION message and to block communications between the plurality of access points and the station in response to determining that the DEAUTHENTICATION message is invalid.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: June 10, 2014
    Assignee: Aruba Networks, Inc.
    Inventors: Pradeep J. Iyer, Partha Narasimhan, Merwyn Andrade, John Richard Taylor
  • Patent number: 8655265
    Abstract: According to one embodiment of the invention, a method comprises an exchange of messages between an access point and a wireless network switch. One message, a PROXY IGMP JOIN message, is transmitted to the access point for propagation to a multicast router. This is performed so that multicast data associated with the multicast group identified by the PROXY IGMP JOIN message is routed to the access point without any unnecessary involvement by the wireless network switch.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 18, 2014
    Assignee: Aruba Networks, Inc.
    Inventors: Partha Narasimhan, Merwyn Andrade
  • Patent number: 8422939
    Abstract: According to one embodiment of the invention, a method comprises detecting, by a wireless network switch, a new association between an access point and a wireless station. Thereafter, a first message is transmitted from the wireless network switch. The first message is adapted to cause the access point to (i) join a multicast group to which the wireless station is a member and (ii) transmit a multicast message directly to a multicast router without routing the multicast message via the wireless network switch.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 16, 2013
    Assignee: Aruba Networks, Inc.
    Inventors: Partha Narasimhan, Merwyn Andrade
  • Publication number: 20120243457
    Abstract: According to one embodiment of the invention, a method comprises detecting, by a wireless network switch, a new association between an access point and a wireless station. Thereafter, a first message is transmitted from the wireless network switch. The first message is adapted to cause the access point to (i) join a multicast group to which the wireless station is a member and (ii) transmit a multicast message directly to a multicast router without routing the multicast message via the wireless network switch.
    Type: Application
    Filed: June 7, 2012
    Publication date: September 27, 2012
    Inventors: Partha Narasimhan, Merwyn Andrade
  • Publication number: 20120218931
    Abstract: A wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Specifically, a network device may receive a multicast or broadcast message. Furthermore, the network device will transmit the multicast or broadcast message if at least one station is associated with the network device, and will discontinue transmitting the multicast or broadcast message if no station is associated with the network device.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 30, 2012
    Inventors: Pradeep J. Iyer, Partha Narasimhan, Merwyn Andrade, John Taylor
  • Publication number: 20120213159
    Abstract: A wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Specifically, a network device may receive a plurality of request messages on a plurality of wireless communication channels through a plurality of access points. The request messages are originated from a single station. Furthermore, the network can extract a plurality of channel identifiers from the request messages, and generates a filtered radio frequency neighborhood list dynamically based on the extracted channel identifiers.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Inventors: Pradeep J. Iyer, Partha Narasimhan, Merwyn Andrade, John Taylor
  • Patent number: 8199732
    Abstract: According to one embodiment of the invention, a method comprises an exchange of messages between an access point and a wireless network switch. One message, a PROXY IGMP JOIN message, is transmitted to the access point for propagation to a multicast router. This is performed so that multicast data associated with the multicast group identified by the PROXY IGMP JOIN message is routed to the access point without any unnecessary involvement by the wireless network switch.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: June 12, 2012
    Assignee: Aruba Networks, Inc.
    Inventors: Partha Narasimhan, Merwyn Andrade
  • Publication number: 20110258696
    Abstract: In one embodiment of the invention, a wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Coupled to the access points over an interconnect, the wireless network switch is adapted to receive a DEAUTHENTICATION message sent by one of the plurality of access points in the same coverage area of the station so as to detect the DEAUTHENTICATION message and to block communications between the plurality of access points and the station in response to determining that the DEAUTHENTICATION message is invalid.
    Type: Application
    Filed: June 24, 2011
    Publication date: October 20, 2011
    Inventors: Pradeep J. Iyer, Partha Narasimhan, Merwyn Andrade, John Taylor
  • Patent number: 7969937
    Abstract: In one embodiment of the invention, a wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Coupled to the access points over an interconnect, the wireless network switch is adapted to receive a DEAUTHENTICATION message sent by one of the plurality of access points in the same coverage area of the station so as to detect the DEAUTHENTICATION message and to block communications between the plurality of access points and the station in response to determining that the DEAUTHENTICATION message is invalid.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: June 28, 2011
    Assignee: Aruba Networks, Inc.
    Inventors: Pradeep J. Iyer, Partha Narasimhan, Merwyn Andrade, John Taylor
  • Publication number: 20070286137
    Abstract: According to one embodiment of the invention, a method comprises an exchange of messages between an access point and a wireless network switch. One message, a PROXY IGMP JOIN message, is transmitted to the access point for propagation to a multicast router. This is performed so that multicast data associated with the multicast group identified by the PROXY IGMP JOIN message is routed to the access point without any unnecessary involvement by the wireless network switch.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 13, 2007
    Inventors: Partha Narasimhan, Merwyn Andrade
  • Publication number: 20070180244
    Abstract: A method of detecting a rogue access point is disclosed. A message is directed from a supplicant to a network through a first access point. A response message is received by the supplicant from the first access point. The supplicant can determine the first access point is a rogue access point based on whether the response message from the first access point is in nonconformity with a predetermined expectation. After the access point is determined to be a rogue access point, it is reported to the network through a valid network access point, after the supplicant is authenticated to the network.
    Type: Application
    Filed: December 20, 2006
    Publication date: August 2, 2007
    Inventors: David Halasz, Merwyn Andrade
  • Publication number: 20070121565
    Abstract: In an example embodiment, a system for providing a Virtual Local Area Network (VLAN) by use of encryption states or encryption keys for identifying a VLAN. A table of data including a VLAN and an associated encryption state or key is provided for assignment of encryption states or keys, for devices in a wireless local area network.
    Type: Application
    Filed: January 31, 2007
    Publication date: May 31, 2007
    Inventors: David Halasz, Victor Griswold, Robert Meier, Merwyn Andrade, Richard Rebo
  • Publication number: 20050213579
    Abstract: In one embodiment of the invention, a wireless network is adapted with a wireless network switch in communication with a plurality of access points, which are in communication with one or more stations. Coupled to the access points over an interconnect, the wireless network switch is adapted to receive a DEAUTHENTICATION message sent by one of the plurality of access points in the same coverage area of the station so as to detect the DEAUTHENTICATION message and to block communications between the plurality of access points and the station in response to determining that the DEAUTHENTICATION message is invalid.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 29, 2005
    Inventors: Pradeep Iyer, Partha Narasimhan, Merwyn Andrade, John Taylor