Patents Represented by Attorney Dorian Cartwright
  • Patent number: 8325753
    Abstract: ACK messages by access points are suppressed when those access points receive messages from wireless stations for which those access points should not respond. This might occur in wireless communication systems based upon 802.11 protocols in which seamless mobility is desired, with a system controller that assigns wireless stations to specific access points. The access point examines an incoming message from a wireless device to decide whether or not to suppress a responsive ACK message to that wireless device. An access point may suppress an ACK message by suppressing the generation of the ACK, or by suppressing the transmission of a generated ACK. Mechanisms for suppressing an ACK message include setting the ACK transmission to a relatively unpowered transmitting antenna; interrupting a PHY-layer element during receipt of an incoming frame; and limiting entries in a key cache table to suppress ACK messages in response to encrypted incoming frames.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: December 4, 2012
    Assignee: Meru Networks
    Inventors: Vaduvur Bharghavan, Vinay Sagar, Mohan Ram
  • Patent number: 8238834
    Abstract: A set of techniques includes devices, methods, and user interfaces, capable of conducting proactive automated tests of a wireless system, and capable of operating while the wireless system is conducting its normal operations. A diagnostic device not controlled by the wireless system controls drivers and clients in that wireless system's access points, with the effect that the diagnostic device can inject message traffic into the wireless system while simulating clients of that system. The wireless system responds to that traffic and those simulated clients as if real clients were generating substantially real traffic for the system to handle. The diagnostic device can initiate messages from within that wireless system, can force those messages to traverse selected trajectories in that system, and can measure aspects of that system in response to those messages. Trajectories might include specific wireless devices, specific wireless parameters, and specific physical paths.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 7, 2012
    Assignee: Meru Networks
    Inventors: Vaduvur Bharghavan, Jari Malinen, Dhaval Deshmukh, Mohan Ram Bhadravati, Mohamad Thaga
  • Patent number: 8169195
    Abstract: A first input receives an indication as to a temperature of a positive terminal from a first temperature probe. A second input receives an indication as to a temperature of a negative terminal from a second temperature probe. A monitor takes an action when a temperature differential that represents a difference in temperature between the positive and negative terminals at a single point in time exceeds a predetermined differential magnitude.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: May 1, 2012
    Assignee: Global Energy Innovations
    Inventors: Stanley Chait, Paul Nicholas Chait
  • Patent number: 8145136
    Abstract: A method of analyzing a wireless network, including the steps of coupling a diagnostic station to a wireless network, injecting encapsulated wireless frames into that wireless network, forwarding encapsulated wireless frames within that wireless network, and in response to recognizing encapsulated wireless frames within that wireless network, de-encapsulating those wireless frames and forwarding them to that diagnostic station. Also, a system and a diagnostic station that can implement the method.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: March 27, 2012
    Assignee: Meru Networks
    Inventor: Vaduvur Bharghavan
  • Patent number: 8005913
    Abstract: Systems and methods for controlling, filtering, and monitoring mobile device access to the internet are disclosed. According to an embodiment a server is responsible for controlling, filtering and monitoring internet activity. For every request, the server interacts with back-end databases that categorize requests, and based on user/carrier/corporate settings, allow or disallow access to particular content.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 23, 2011
    Assignee: Network Protection Sciences, LLC
    Inventor: Carrie Carlander