Abstract: A satellite communication system leverages the carrier offset detection capability of the demodulator contained in an on-board modem of M&C channel. The modem detects the frequency error ?f, introduced in the signal path from the output of the base station at ground to the output of baseband conversion on the satellite, by analyzing the baseband signal at the baseband conversion to estimate the received carrier f?c and subtracting it the from the expected frequency (fc).

Abstract: OFDM-BPSK symbol sequences are used for mutual-coupling based phase array calibration. Such substitution allows phase to be estimated more accurately using a given estimation duration without compromising other estimates' (amplitude and group delay) accuracies.

Abstract: A ground station processes downlink signals received from respective satellites. The ground station has a plurality of signal conditioning devices each receiving a respective one of the downlink signals and providing a conditioned downlink signal. A plurality of Doppler and/or Delay compensator devices each receive a respective conditioned downlink signal from a respective one of the plurality of signal conditioning devices. The compensator devices conduct Doppler and/or Delay compensation on the received conditioned downlink signal, and provide a compensated downlink signal output. A selector or diversity combiner receives the compensated downlink signal from each of the plurality of Doppler and/or Delay compensators.

Abstract: A base station for communication with a terminal station having a plurality of terminal station antennas. The base station has a plurality of directional antennas, each of the plurality of directional antennas in communication with satellites in view. The base station also has a processing device (e.g., eNodeB) to transmit each of the multiple base-station antenna signals via each of the plurality of directional antennas to satellites and/or the beams of the same satellite seen by the terminal station for retransmission to the plurality of terminal station antennas.

Abstract: Methods and apparatus for human anatomical orthoses. In one embodiment, an orthoses is disclosed that has been integrated into a sock and includes a tensioning element that is configured to keep the top portion of the sock at or above a user's calf muscle, a rotary tensioning mechanism disposed adjacent to the top portion of the sock, a support cable that is weaved within the body of the sock such that the support cable is maintained in close proximity with a user's leg when tension is applied thereto, and a supporting structure that is coupled to the support cable, the supporting structure being disposed adjacent to a user's toes. Methods of manufacturing and using the aforementioned orthoses is also disclosed.

Abstract: A GSM satellite communication system is in communication with a first satellite having a first field of view including a first plurality of cells in which a plurality of active User Equipment (UEs) are located. The plurality of active UEs are in direct communication with the first satellite. The satellite communication system includes a first feeder link and a first tracking antenna configured to communicate with the plurality of active UEs via the first satellite directly serving the first plurality of cells; a first processing device configured to communicate with the plurality of active UEs; and a second processing device configured to normalize delay for a plurality of beam centers of the first plurality of cells, and provide the normalized delay to the first processing device.

Abstract: A ground station has a power management communication system for use with a satellite having one or more solar cells that generate solar power, an energy storage that collects solar power from the one or more solar cells and provides stored energy, and one or more electronic components. The power management communications system has a learning artificial intelligence algorithm that allocates solar power from the one or more solar cells and stored energy from the energy storage to the one or more electronic components, based on a number of factors including communication needs, adjustable parameters, and performance indicators. The user can indicate the desired communication to be achieved, and the system determines the appropriate operating parameters for the satellite.

Abstract: A reusable magnetic device for temporary retention of a vehicle opening element in a closed position. The reusable magnetic device includes one or more magnets engaging at least one of the opening element and the fixed element of the vehicle in the closed position. The reusable magnetic device may include one or more pads to reduce the contact surface area between the device and either one or both of the opening element or fixed element.

Abstract: A communication system has a phased antenna array configured to communicate via a plurality of beams with a wireless device, such as user equipment (e.g., a smart phone). The plurality of beams define a field of view of the phased antenna array, the field of view having a plurality of cells and each of the plurality of beams is associated with one of the plurality of cells within the field of view. A processing device detects the wireless device within the field of view and determines a coarse geographic location of the wireless device within the field of view of the wireless device when the wireless device is within the field of view, or within a cell. The system further determines a fine geographic location for the wireless device based on frequency offset (due to Doppler) and signal flight time.

Abstract: A high throughput fractionated satellite (HTFS) system and method where the functional capabilities of a conventional monolithic spacecraft are distributed across many small or very small satellites and a central command and relay satellite, the satellites are separated and flight in carefully design formations that allows the creation of very large aperture or apertures in space drastically reducing cost and weight and enabling high throughput capabilities by spatially reuse spectrum.

Abstract: A system includes a satellite assembly. The assembly includes a plurality of satellite devices, where each satellite device includes a processor device, an impulse actuator, and a memory storing instructions. The instructions are executable by the processor device to access a sequence of waypoints. The sequence of waypoints identifies a first waypoint and is associated with formation of a distributed structure including the plurality of satellite devices. The instructions are further executable by the processor device to initiate movement of the satellite device toward the first waypoint at least by initiating activation of the impulse actuator.

Abstract: Within a satellite communications system, a base station communicates with standard compliant user equipment (UE) via a satellite having a field of view. The base station has a processor that instructs the satellite to generate a wide beam signal covering a plurality of cells in the field of view, and detects an access request from a user equipment within the plurality of cells over the wide beam signal. The base station, comprising a processing device such as an eNodeB, then generates one or more network broadcast/access signals that is uplink to a satellite and broadcasted via one or more nominal beams generated by the satellite, covering all the inactive cells, one of the plurality of cells having the access request.

Abstract: An antenna assembly has a solar layer having one or more solar cells generating solar power, an antenna layer connected to the solar layer and having electronic components utilizing the solar power generated by the solar layer, and a thermal dissipation device dissipating heat locally at the antenna assembly. A large number of antenna assemblies are connected to form an antenna array in which heat is generated locally at each antenna assembly and dissipated locally at each antenna assembly.

Abstract: A high throughput fractionated satellite (HTFS) system and method where the functional capabilities of a conventional monolithic spacecraft are distributed across many small or very small satellites and a central command and relay satellite, the satellites are separated and flight in carefully design formations that allows the creation of very large aperture or apertures in space drastically reducing cost and weight and enabling high throughput capabilities by spatially reuse spectrum.

Abstract: An antenna array includes an antenna assembly. The antenna assembly includes a plurality of elements. The antenna assembly is configured to measure a reference combined parameter of a reference element of the plurality of elements, measure a first combined parameter of the reference element and a first neighbor element of the plurality of elements and being adjacent or diagonal with respect to the reference element, calculate a differential parameter according to the first combined parameter and the reference combined parameter, and adjust a parameter of the first neighbor element according to the differential parameter. The parameter of first neighbor element is a phase or a amplitude of first neighbor element. The first combined parameter includes a coupling contribution of the first neighbor element and the reference element, and contributions from a path of the first element and a path of the reference element.

Abstract: Ankle foot orthoses and methods of manufacturing an ankle foot orthosis. In one embodiment, an ankle foot orthosis is disclosed that includes a foot plate constructed to have both a trimmable portion and a non-trimmable portion. The ankle foot orthosis includes a spiral strut coupled with either the hindfoot region of the foot plate laterally of a mid-line for the foot plate or the midfoot region of the foot plate laterally of the mid-line. The spiral strut includes a transition portion that spirals by approximately sixty-five degrees (65°) over less than one-hundred sixty millimeters (160 mm) in height from the bottom surface of the foot plate. The spiral strut also includes an adjustable portion that enables a cuff coupled thereto to be height adjustable. Methods of manufacturing the aforementioned ankle foot orthoses are also disclosed.

Abstract: Compositions are provided herein comprising a base polymer having engrafted with a secondary polymeric matrix having hydrophilic and lubricious copolymer brushes. Each copolymer brush further comprises functional groups immobilized along the surface of the brush in a plurality of layers, the functional groups conferring hydrophilic and lubricious properties to the base polymer. These polymer compositions are useful for e.g., fabricating devices for delivery of intraocular lenses (IOLs) as well as improving the hydrophilic properties of contact lenses.

Abstract: The present invention provides a device and method for inserting an IOL into an eye of a patient. The IOL injector is configured to automatically load an IOL into the injector by folding and aligning the IOL into a lens cartridge of the injector without manual manipulation of the IOL by the physician during the procedure. The injector is configured to properly orient and align the IOL within the injector and maintain proper alignment throughout delivery of the IOL to the eye of a patient and thereby ensuring that the IOL is properly positioned and oriented at a predetermined location in the eye.

Abstract: A bracelet having a channel groove is provided. The bracelet has an outer side and an inner side. A channel groove is at least partially surrounding a circumference of the outer side. A hair band may fit within the channel groove.