Abstract: An interfacing device is configured to process one or more rules, based on sensor data, to perform a predetermined action. During operation, the device can receive a device configuration that includes a rule for the interfacing device. The rule can include an action description for performing an action, and can include a condition that takes sensor data as input and indicates criteria for performing the action. The device can store the rule in a rule repository, and determines a remote interfacing device that generates data associated with the rule's condition. The device can also subscribe to the data from the remote interfacing device.

Abstract: One embodiment of the present invention provides a system for configuring an access point in a wireless network. During operation, the access point discovers one or more existing access points associated with the wireless network. The access point then obtains a set of configuration information from one existing access point, and synchronizes a local timestamp counter to a selected existing access point, thereby allowing the access point to be configured without using a centralized management station.

Abstract: Methods of transmitting and receiving wireless signals using a compact antenna having an array of compactly arranged emitters/receivers. Wireless signals are transmitted from an antenna feed to the plurality of emitters/receivers in any appropriate band, such as the 5.15 to 5.85 GHz band and/or the 2.40-2.48 GHz band. The feed is connected to a radio connection point and from there may connect to the plurality of emitters/receivers arranged in a plane (or planes) above an antenna feed connecting the emitting elements to the radio connection point. The antenna feed is positioned between the emitters and a ground plane. Signals (e.g., horizontally and vertically polarized signals) may be emitted from the plurality of antenna radiating surfaces. Methods of manufacturing compact array antennas are also described.

Abstract: Wireless radio apparatuses for point-to-point or point-to-multipoint transmission/communication of high bandwidth signals having dual receivers and transmitters. Radio devices and systems may include a pair of reflectors separated by an isolation choke boundary. The device may be configured to operate in any appropriate band (e.g., a 5 GHz band, a 24 GHz band, etc.) and may simultaneously transmit and receive with minimal crosstalk. The isolation choke boundary may have ridges that extend between the first and second parabolic reflectors to a height that may be tuned to the band. The isolation choke boundary provides greater than 10 dB isolation between the first and the second parabolic reflectors may be in a fixed configuration relative to each other so that they are aligned to send/receive in parallel. The two reflectors may be formed of a single housing, with fixed parallel alignment.

Abstract: One embodiment of the present invention provides a radio assembly. The radio assembly includes an antenna housing unit that houses a pair of reflectors which are situated on a front side of the antenna housing unit, a printed circuit board (PCB) that includes at least a transmitter and a receiver, and a backside cover. The PCB is situated within a cavity at a backside of the antenna housing unit and the backside cover covers the cavity, thereby enclosing the PCB within the antenna housing unit. One embodiment of the present invention provides a user interface for configuring a radio. The user interface includes a display and a number of selectable tabs presented on the display. A selection of a respective tab results in a number of user-editable fields being displayed, thereby facilitating a user in configuring and monitoring operations of the radio.

Abstract: One embodiment of the present invention provides a system for configuring an access point in a wireless network. During operation, the access point discovers one or more existing access points associated with the wireless network. The access point then obtains a set of configuration information from one existing access point, and synchronizes a local timestamp counter to a selected existing access point, thereby allowing the access point to be configured without using a centralized management station.

Abstract: One embodiment of the present invention provides a switching system. During operation, the switching system maintains a control-plane operating system and a web server which is in communication with the control-plane operating system. The system then sends content by the web server to a browser without being solicited by the browser, and allows a user to configure the switching system via a command line interface within the browser.

Abstract: One embodiment of the present invention provides a system for improving transmission efficiency of a wireless link. During operation, the system receives a packet for transmission, where in the packet includes an original sequence number. The system then modifies the packet by including a virtual sequence number in a header of the packet and including the original sequence number in a payload of the modified packet. The system further aggregates a number of modified packets into an aggregate frame and transmits the aggregate frame to a destination device. The virtual sequence number facilitates stateless transmission of the encapsulated packets and allows the aggregate frame to have a maximum allowable number of packets while accommodating both re-transmitted packets and regular packets.

Abstract: One embodiment of the present invention provides a system for improving transmission efficiency of a wireless link. During operation, the system receives a packet for transmission, where in the packet includes an original sequence number. The system then modifies the packet by including a virtual sequence number in a header of the packet and including the original sequence number in a payload of the modified packet. The system further aggregates a number of modified packets into an aggregate frame and transmits the aggregate frame to a destination device. The virtual sequence number facilitates stateless transmission of the encapsulated packets and allows the aggregate frame to have a maximum allowable number of packets while accommodating both re-transmitted packets and regular packets.

Abstract: One embodiment of the present invention provides a system for configuring an access point in a wireless network. During operation, the access point discovers one or more existing access points associated with the wireless network. The access point then obtains a set of configuration information from one existing access point, and synchronizes a local timestamp counter to a selected existing access point, thereby allowing the access point to be configured without using a centralized management station.

Abstract: One embodiment of the present invention provides a system for configuring an access point in a wireless network. During operation, the access point discovers one or more existing access points associated with the wireless network. The access point then obtains a set of configuration information from one existing access point, and synchronizes a local timestamp counter to a selected existing access point, thereby allowing the access point to be configured without using a centralized management station.

Abstract: A microwave system comprising a center fed parabolic reflector; a radio transceiver, said transceiver disposed on a circuit board and coupled to a radiator, said radiator disposed on the circuit board and extending orthogonally from a surface of the circuit board. Embodiments also include directors on the circuit board and a sub-reflector comprising a thin plate disposed on a weather proof cover and said sub-reflector having a substantially concave surface with a focus directed towards the radiator. The circuit board is physically integrated within the feed mechanism of the center fed parabolic reflector and the radio transceiver is configured to provide OSI layer support.

Abstract: A device-controlling system configures, monitors, and controls one or more interfacing devices, such that an interfacing device can obtain and disseminate sensor data from one or more attached physical devices that include sensors for measuring physical attributes. During operation, the system can configure an interfacing device by establishing a network connection with an interfacing device, and determining one or more rules for the interfacing device. A rule can indicate an action description for performing an action, and indicates a condition that indicates criteria for processing the rule's action description. The system can configure the interfacing device to process its associated rules.

Abstract: A sensor-monitoring interfacing device is coupled to one or more physical devices that include sensors for measuring physical attributes. During operation, the interfacing device obtains and processes sensor data from the physical devices. When the interfacing device obtains sensor data from a physical device, the interfacing device selects a rule to process based on the obtained sensor data. If the interfacing device determines that the rule's condition is satisfied, the interfacing device can process the rule's action description to perform a corresponding action.

Abstract: An interfacing device is configured to process one or more rules, based on sensor data, to perform a predetermined action. During operation, the device can receive a device configuration that includes a rule for the interfacing device. The rule can include an action description for performing an action, and can include a condition that takes sensor data as input and indicates criteria for performing the action. The device can store the rule in a rule repository, and determines a remote interfacing device that generates data associated with the rule's condition. The device can also subscribe to the data from the remote interfacing device.

Abstract: A local controller maintains a local database which stores information associated with a set of interfacing devices of a local-area network. The local database can include a database mirror for a remote database, of a remote controller, that stores information for a set of provisioned interfacing devices. During normal operation, a remote controller hosting the remote database can have primary control of interfacing devices within the local area network and/or other network domains, and the local controller maintains the local database to include at least a subset of the remote database. However, when the local controller determines that the remote controller has gone offline, the local controller can obtain primary control of interfacing devices within the local area network.

Abstract: A data-forwarding system establishes a network connection to a plurality of network devices to facilitate an interfacing device communicating with a device-controlling system, a peer interfacing device, or other computing devices. During operation, when the system receives data from a network device, the system determines a peer network device that is to receive the data, such as a device that is subscribed to receive the data. The system can forward the sensor data to the peer network device by determining an established network connection for communicating with the second network device, and sending the sensor data to the peer network device via the established network connection.

Abstract: A load-controlling interfacing device obtains and processes event data, for example, from a touch-screen user interface and/or other devices, and that processes rules based on the event data to control an electrical load, such as a light fixture. During operation, when the interfacing device obtains event data, the interfacing device selects a rule to process based on the event data from the touch-screen user interface. If the interfacing device determines that the rule's condition is satisfied, the interfacing device can process the rule's action description to perform a corresponding action for controlling power to the electrical load.

Abstract: A load-monitoring interfacing device obtains and processes sensor data from an electrical load. The interfacing device can include at least one power outlet to provide power to a corresponding electrical load. During operation, the interfacing device can obtain sensor data from a local power outlet coupled to an electrical load, such that the sensor data can indicate an electrical measurement associated with the electrical load. The interfacing device selects a rule to process based on the obtained sensor data, and processes the rule to determine whether to perform an action. If the rule's condition is satisfied, the interfacing device proceeds to processing the rule's action description to perform the action, such as to enable or disable a power outlet, or to perform any other pre-defined action.

Abstract: The present invention offers significant improvements in the performance of a radio receiver operating in an environment with high desired band interference. The present invention comprises a high selectivity RF circuit that is located between the antenna and the radio receiver, and utilizes superheterodyne technology to filter adjacent channel interference in the desired band frequency spectrum. This type of interference is problematic for IEEE 802.11 radio receivers that are implemented with the popular direct conversion radio receiver architectures. The present invention may be utilized in many types of radio receivers.