Abstract: Compact lacunated lenses having a lens body with a plurality of input ports, (which may correspond to a predetermined steering angle), a plurality of output ports, and a plurality of holes/openings in the lens body, wherein the openings are arranged through the lens body so that an electromagnetic signal entering the lens body from any one of the input ports will exit from each of the output ports at a time delay corresponding to the predetermined steering angle of the input port from which the electromagnetic signal entered the lens body. The lenses may be used for RF signals between 2 GHz and 30 GHz for beamforming, and may have a diameter of less than 10 cm. The lenses may also be used for amplification. Methods of using these lenses and phase array antennas including these lenses are also described.

Abstract: One embodiment of the present invention provides a cloud-based video monitoring system comprising a camera and a network video recorder (NVR). During operation, the camera stores in a buffer last predetermined temporal segment of a video. The camera also stores a first video file in a local storage corresponding to an event detected by the camera. This first video file is non-overlapping with a second video file corresponding to the event and this second video file is stored in the NVR. The camera generates a third video file by pre-pending last predetermined temporal segment of a video prior to the event to the first video file and sends the third video file to the NVR.

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: Methods and apparatuses for authentication and/or provisioning of wireless network devices, and in particular, methods and apparatuses for authentication and/or provisioning of wireless network devices that are communicating with and may be monitored and/or controlled by a remote (e.g., cloud) server.

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 may be physically integrated within the feed mechanism of the center fed parabolic reflector and the radio transceiver is configured to provide OSI layer support.

Abstract: Multi-radio antenna apparatuses and stations for wireless networks including multiple radios coupled to a single transmit/receive antenna, in which the antenna is highly synchronized by an external (e.g., GPS) signal. These multi-radio antenna systems may provide highly resilient links. Synchronization may allow these apparatuses to organically scale the transmission throughput while preventing data loss. The single transmit/receive antenna may have a single dish or a compound (e.g., a single pair of separate transmitting and receiving dishes) and connections for two or more radios.

Abstract: One embodiment of the present invention provides a cloud-based video monitoring system comprising a camera and a network video recorder (NVR). During operation, the camera stores in a buffer last predetermined temporal segment of a video. The camera also stores a first video file in a local storage corresponding to an event detected by the camera. This first video file is non-overlapping with a second video file corresponding to the event and this second video file is stored in the NVR. The camera generates a third video file by pre-pending last predetermined temporal segment of a video prior to the event to the first video file and sends the third video file to the NVR.

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: A power connector facilitates mounting and repositioning an electronic device via a magnetic field. The power connector can include a receptacle surface comprising a curved surface operable to mate with a curved contact surface of an electronic device, and a device-coupling mechanism operable to hold the curved contact surface of the electronic device pressed against the curved surface of the power connector device, while an angle of the electronic device changes with respect to the power connector. The power connector can also include a power-transfer mechanism operable to transfer at least power to the electronic device, without an electrical wire between power connector and the electronic device, while the angle of the electronic device changes with respect to the power connector.

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 multi-panel antenna system may be disassembled and packaged into a container with substantially smaller dimensions than the assembled antenna system. The antenna system may include two or more reflector panels, such that a respective reflector panel can include a curved surface that may form a portion of a parabolic reflector, and can include an inter-panel fastener operable to align a side surface of the respective reflector panel with a side surface of another reflector panel. The antenna system may also include a mounting assembly that may be used to fasten a convex side of the two or more reflector panels to a surface external to the antenna system, and a feed assembly that may be attached to the mounting assembly.

Abstract: A device comprising a plurality of metallic conical radiators, said conical radiators substantially hollow having a vertex end and a base end, a first cylindrical portion disposed annularly about the base end of the conical portion, a metallic second cylindrical portion coupled to the vertex of the conical portion, said cylindrical portion having a threaded aperture, and an antenna feed coupled to the threaded aperture. The device may have patches disposed on a substrate as a one or multi-dimensional array. An RF feed may be coupled to the radiators.

Abstract: A conical radiator coupled to an antenna patch disposed along a first end of the radiator, said patch disposed on an insulator. A ground plane is connected to the insulator and a radome is disposed opposite a second end of the radiator. The radome has a first region presenting a convex surface towards the radiator, and a second region presenting a concave surface towards the radiator. The first end of the conical radiator is the apex of the cone. A ground plane is included and a portion of the ground plane is a planar surface and another portion extends away from the planar portion towards the radome. Also disclosed is a method for forming a radiation pattern by shaping the radome to effectuate a predetermined radiation pattern using localized convex and concave surfaces positioned on the radome at different points in relation to the conical radiator.

Abstract: Compact and integrated local key controller apparatuses for remotely managing a network of wireless devices that are connected to a computer network switch. These apparatuses (including devices and systems) and methods of using them may provide secure and fully integrated, stand-alone wireless network controllers that may be accessed remotely without compromising the integrity of the network's firewall.

Abstract: A conical radiator coupled to an antenna patch disposed along a first end of the radiator, said patch disposed on an insulator. A ground plane is connected to the insulator and a radiomen is disposed opposite a second end of the radiator. The radiomen has a first region presenting a convex surface towards the radiator, and a second region presenting a concave surface towards the radiator. The first end of the conical radiator is the apex of the cone. A ground plane is included and a portion of the ground plane is a planar surface and another portion extends away from the planar portion towards the radiomen. Also disclosed is a method for forming a radiation pattern by shaping the radiomen to effectuate a predetermined radiation pattern using localized convex and concave surfaces positioned on the radiomen at different points in relation to the conical radiator.

Abstract: Shroud isolation, including choke shroud isolation, apparatuses for wireless antennas for point-to-point or point-to-multipoint transmission/communication of high bandwidth signals, and integrated reflectors including a shroud or choke shroud. A choke shroud systems may include a cylindrical body with an isolation choke boundary at the distal opening to attenuate electromagnetic signals to, from, or within the antenna. The isolation choke boundary region may have ridges that may be tuned to a band of interest. The isolation choke boundary may provide RF isolation when used near other antennas.

Abstract: Methods and apparatuses for point-to-point or point-to-multipoint transmission/communication of high bandwidth signals. High bandwidth signals may be efficiently transmitted by a radio device having a pair of reflectors separated by an isolation choke boundary. The two reflectors may be connected or formed of a single housing, and may be mounted to a wall, pole, etc. using a quick-connect. The devices may be configured to operate in any appropriate band (e.g., a 5GHz band, a 24 GHz band, etc.) and may be configured for accurate and easy alignment with one or more remote radio devices. Alignment may be assisted by displaying both local and remote transmission information during alignment.