147 patents in CPC class H04W
A method for maximizing signal strength between a land-based or moving first station and a second, moving station on a sea-going vessel is provided, comprising mounting an antenna on a structure on the moving station, the structure rotatable about a vertical axis by a mechanism powered by an electric motor, initiating a data connection between the first and the second stations by a processor in communication circuitry at the second station, reading a received signal-strength by the processor, and operating the electric motor by the processor, rotating the rotatable structure, maximizing the signal strength.
Disclosed is a mobile terminal comprising: a housing including a rear case positioned on a rear surface thereof and a side case positioned on a side surface thereof; a display unit disposed on a front surface of the housing; and a wireless communication unit, mounted on the main board, for processing a radio signal, wherein the side case includes a first metal part and a second metal part formed in a layered structure and spaced apart in the thickness direction of the first metal part and the housing, wherein the first metal part and the second metal part extend to a first side surface of the housing and to at least a portion of a second side surface and a third side surface located on the right and left sides of the first side surface, wherein at least one of the first metal part and the second metal part is connected to the wireless communication unit to transmit and receive an RF signal. The performance of the mobile terminal can be secured even when the performance of a mobile communication antenna is expanded and thus the mobile terminal is adjacent.
Techniques and mechanisms to provide wireless communication with a body-mountable device comprising a single-loop antenna. In an embodiment, distal ends of the single-loop antenna are disposed on opposite sides of a slit structure, wherein the single-loop antenna extends around a controller configured to provide any of multiple modes of high-frequency communication with the single-loop antenna. Different operational modes each provide for operation of the single-loop antenna with both a proximity-coupled feed structure and a first contact at or near a distal end of the single-loop antenna. In another embodiment, the single-loop antenna forms a hole or a recess structure which is aligned with a sensor or an input/output (I/O) mechanism of the body-mountable device.
The present invention provides a base station antenna, including power dividers, network calibration modules, and connectors. The base station antenna further includes at least two phase shifters. At least one phase shifter is integrated with a combiner, the connectors are connected to the network calibration modules, and the network calibration modules are connected to the phase shifters. The one phase shifter integrated with the combiner is connected to the power divider, and at least one output port of the at least one other phase shifter is connected to the phase shifter integrated with the combiner. The base station antenna has an integrated design of phase shifters and combiners, which allows cables in different bands to be shared, reduces a quantity of used cables, is easy to implement in an actual layout and production, facilitates the layout and heat dissipation on the whole, satisfies user requirements, and reduces costs.
Systems and methods improve tracking performance of an ultra-wide-band (UWB) tracking tag positioned on a player on a sporting field. A UWB antenna is formed with power radiated disproportionately in forward and backward directions as compared to sideways. The UWB tracking tag is aligned with the UWB antenna when positioned on the player such that less power is absorbed by the player than radiated away from the player. The UWB antenna is monopole and may be folded from a single metal sheet forming: a flat top; a first side folded at an acute angle from one edge of the top; a second side folded at an acute angle from another edge of the top; a first solder tab folded at an obtuse angle from the first side; and a second solder tab folded at an obtuse angle from the second side, to join in parallel with the first solder tab.
Various arrangements of wireless tracking systems are presented. A tag device may be presented that include a first plurality of antennas. Each antenna of the first plurality of antennas may have an antenna radiation pattern pointed in a different direction. The tag device may include a wireless transmitter interface that transmits via each antenna of the first plurality of antennas. The wireless tracking system may also include a tracker device that tracks a direction to the tag device. The tracker device may include a second plurality of antennas. Each antenna of the second plurality of antennas may have an antenna radiation pattern pointed in a different direction. The tracker device may include a wireless interface receiver that performs a plurality of signal strength measurements using the second plurality of antennas.
Method, modules and a system formed by connecting the modules for controlling payloads are disclosed. An activation signal is propagated in the system from a module to the modules connected to it. Upon receiving an activation signal, the module (after a pre-set or random delay) activates a payload associated with it, and transmits the activation signal (after another pre-set or random delay) to one or more modules connected to it. The system is initiated by a master module including a user activated switch producing the activation signal. The activation signal can be propagated in the system in one direction from the master to the last module, or carried bi-directionally allowing two way propagation, using a module which revert the direction of the activation signal propagation direction. A module may be individually powered by an internal power source such as a battery, or connected to external power source such as AC power. The system may use remote powering wherein few or all of the modules are powered from the same power source connected to the system in a single point. The power may be carried over dedicated wires or concurrently with the conductors carrying the activation signal. The payload may be a visual or an audible signaling device, and can be integrated within a module or external to it. The payload may be powered by a module or using a dedicated power source, and can involve randomness associated with its activation such as the delay, payload control or payload activation.
A near-field antenna is provided, which includes: a reflector and four distinct antenna elements, offset from the reflector, each of the four distinct antenna elements following respective meandering patterns. Two antenna elements of the four antenna elements form a first dipole antenna along a first axis, and another two antenna elements of the four antenna elements form a second dipole antenna along a second axis perpendicular to the first axis. The near-field antenna further includes: (i) a power amplifier configured to feed electromagnetic signals to one of the dipole antennas, (ii) an impedance-adjusting component configured to adjust an impedance of one of the dipole antennas, and (iii) switch circuitry coupled to the power amplifier, the impedance-adjusting component, and the dipole antennas. The switch circuitry is configured to switchably couple the first dipole antenna to the power amplifier and the second dipole antenna to the impedance-adjusting component, and vice versa.