Patents by Inventor Senthil Palanisamy

Senthil Palanisamy 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).

  • Security in wireless communication systems
    Patent number: 8867744
    Abstract: Wireless security is enforced at L1, in addition to or in lieu of other layers. AP's can switch dynamically from serving to scanning. Scanners listen for authorized frame headers. Scanners either receive, or allow authorized frames to be received, at their destination. Scanners kill unauthorized frames while they are still transmitting; scanners continue listening for and killing unauthorized frame headers until frame ending time demands their return to serving, multiplying their effectiveness. AP's include dual-mode multi-frequency omni-directional antennae, used to prevent third parties from snooping messages received at those AP's.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: October 21, 2014
    Assignee: Meru Networks
    Inventors: Senthil Palanisamy, Vaduvur Bharghavan
  • Omni-directional antenna supporting simultaneous transmission and reception of multiple radios with narrow frequency separation
    Patent number: 8160664
    Abstract: An omni-directional antenna supporting simultaneous transmission/reception, from the same AP, on multiple frequencies, allowing each AP to communicate using each possible frequency. Each AP multiplexes its outgoing signals onto its transmitting antenna, and de-multiplexes its incoming signals from its receiving antenna. The transmitting and receiving antennae are each substantially located in each other's NULL zone (or one is in the NULL zone of the other). The AP can transmit/receive on many distinct frequencies without needing more antennae.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: April 17, 2012
    Assignee: Meru Networks
    Inventors: Rajendran Venugopalachary, Senthil Palanisamy, Srinath Sarang, Vaduvur Bharghavan
  • Omni-directional antenna supporting simultaneous transmission and reception of multiple radios with narrow frequency separation
    Patent number: 8103311
    Abstract: An omni-directional antenna supporting simultaneous transmission/reception, from the same AP, on multiple frequencies, allowing each AP to communicate using each possible frequency. Each AP multiplexes its outgoing signals onto its transmitting antenna, and de-multiplexes its incoming signals from its receiving antenna. The transmitting and receiving antennae are each substantially located in each other's NULL zone (or one is in the NULL zone of the other). The AP can transmit/receive on many distinct frequencies without needing more antennae.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: January 24, 2012
    Assignee: Meru Networks
    Inventors: Rajendran Venugopalachary, Senthil Palanisamy, Srinath Sarang, Vaduvur Bharghavan
  • Security in wireless communication systems
    Patent number: 8064601
    Abstract: Wireless security is enforced at L1, in addition to or in lieu of other layers. AP's can switch dynamically from serving to scanning. Scanners listen for authorized frame headers. Scanners either receive, or allow authorized frames to be received, at their destination. Scanners kill unauthorized frames while they are still transmitting; scanners continue listening for and killing unauthorized frame headers until frame ending time demands their return to serving, multiplying their effectiveness. AP's include dual-mode multi-frequency omni-directional antennae, used to prevent third parties from snooping messages received at those AP's.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 22, 2011
    Assignee: Meru Networks
    Inventors: Senthil Palanisamy, Vaduvur Bharghavan