Abstract: An electronic device such as a wristwatch may include a housing with a dielectric rear wall. Wireless circuitry in the device may include an antenna formed on or over the rear wall. Matching circuitry may match the impedance of the antenna to the rest of the wireless circuitry. Processing circuitry may gather receive signal strength information and/or phase and magnitude information from radio-frequency signals received through the rear wall. The processing circuitry may track the position of the device and accumulate user statistics over time. The processing circuitry may determine whether changes in loading of the antenna through the dielectric rear housing wall have occurred based on the receive signal strength information, user statistics, and/or phase and magnitude information. If a change is detected, the processing circuitry may adjust the matching circuitry to mitigate any potential antenna detuning as a result of the change.

Abstract: A system of a machine includes a network of a plurality of sensing/control/identification devices distributed throughout the machine. Each of the sensing/control/identification devices is associated with at least one sub-system component of the machine and operable to communicate through a plurality of electromagnetic signals. Shielding surrounds at least one of the sensing/control/identification devices to contain the electromagnetic signals proximate to the at least one sub-system component. A waveguide is operable to route a portion of the electromagnetic signals through a waveguide transmitter interface and a waveguide transition interface to the at least one of the sensing/control/identification devices.

Abstract: An electronic device with an antenna-connectable connector is provided.

Abstract: Wireless communications systems and methods related to providing user interfaces to inform a user of an antenna signal blockage at a wireless communication device are provided. A wireless communication device receives information associated with at least one antenna of the wireless communication device indicating that a signal path of the at least one antenna is at least partially blocked by an object. The wireless communication device outputs, via a user interface of the wireless communication device, an indication that the signal path of the at least one antenna is at least partially blocked.

Abstract: In a noise canceller device, interference signal adjustment units adjust delay, phase and amplitude of a signal received by a sub antenna under different conditions to obtain adjustment signals, and subtract the adjustment signals from a signal received by a main antenna to obtain differential signals. An average power calculation unit calculates an average power for each of the differential signals. An optimal condition search unit determines the values of delay, phase and amplitude that result in the minimum average power, and sets the values in an optimal interference signal adjustment unit. The optimal interference signal adjustment unit adjusts the signal received by the sub antenna using optimal values for delay, phase and amplitude to obtain an optimal adjustment signal. A cancellation unit subtracts the optimal adjustment signal from the signal received by the main antenna to remove interference signals, and outputs a desired signal to a host device.

Abstract: Aspects of the subject disclosure may include, for example, an antenna structure having a feed point for coupling to a dielectric core of a cable that propagates electromagnetic waves without an electrical return path, and a dielectric antenna, substantially or entirely devoid of conductive external surfaces, coupled to the feed point, the dielectric antenna facilitating receipt, at the feed point, the electromagnetic waves for propagating the electromagnetic waves to an aperture of the dielectric antenna for radiating a wireless signal. Other embodiments are disclosed.

Abstract: When communicating using active load modulation in a Radio Frequency Identification (RFID) system, a carrier signal having a carrier frequency is received from a reader device. In response, a modulated signal is generated and a burst of a sending signal is transmitted. The sending signal is decayed at the end of the burst.

Abstract: A novel and useful apparatus for and method of software based phase locked loop (PLL). The software based PLL incorporates a reconfigurable calculation unit (RCU) that is optimized and programmed to sequentially perform all the atomic operations of a PLL or any other desired task in a time sharing manner. An application specific instruction-set processor (ASIP) incorporating the RCU includes an instruction set whose instructions are optimized to perform the atomic operations of a PLL. The RCU is clocked at a fast enough processor clock rate to insure that all PLL atomic operations are performed within a single PLL reference clock cycle.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of operating a first Radio Unit (RU) for transmitting an uplink signal in a communication system of the present disclosure includes receiving a first signal through an antenna, re-compensating a second signal delivered from a second RU through a transmission line by using a re-compensation factor, compensating a third signal obtained by adding the first signal and the re-compensated second signal by using a compensation factor, and delivering the compensated third signal to a higher-level RU or a Digital Unit (DU).

Abstract: A multi-layer antenna for near-field communications can have a first layer on a top surface of flexible circuit board and a second layer on a bottom surface of the flexible circuit board. The first layer and the second layer can be connected in series by a through connection in the flexible circuit board. The first layer can incorporate a single loop in the shape of a rectangle and the second layer can incorporate a single loop in the shape of a rectangle. The second layer of the antenna can be vertically aligned with the first layer of the antenna and can have current flow in the same direction as the first layer to provide for an increased magnetic flux from the antenna.

Abstract: A method for a phase calibration in a frontend circuit of a near field communication (NFC) tag device is disclosed. An active load modulation signal is generated with a preconfigured value of a phase difference with respect to a reference signal of an NFC signal generator device. An amplitude of a test signal present at an antenna of the NFC tag device is measured. The test signal results from overlaying of the reference signal with the active load modulation signal. The following steps are repeated: modifying the value of the phase difference, providing the active load modulation signal with the modified value of the phase difference, measuring an amplitude of the test signal and comparing the measured amplitude with the previously measured amplitude until the measured amplitude fulfills a predefined condition. The value of the phase difference corresponding to the previously measured amplitude is stored.

Abstract: Some embodiments include apparatuses and methods of operating such apparatuses. One of the embodiments includes an input node to receive an input voltage, a circuit portion to generate first, second, and third voltages based on the input voltage, a comparator circuit to compare the first voltage with the second voltage to generate a first signal and to compare the first voltage with the third voltage to generate a second signal, and an output circuit to generate an output signal based on the first and second signals.

Abstract: A method of receiving a call by recognizing a posture of a user in a portable terminal is provided. The method includes identifying whether a call reception event occurs, detecting a motion in which the user brings the portable terminal to an ear by using a posture detecting sensor, when the call reception event occurs, and connecting the call upon detecting the motion.

Abstract: The disclosed embodiments provide a system that uses a first antenna and a second antenna in a portable electronic device. During operation, the system receives a request to switch from the first antenna to the second antenna to transmit a signal to a cellular receiver. Next, the system loads a set of radio-frequency (RF) calibration values for the second antenna. Finally, the system performs the switch from the first antenna to the second antenna to transmit the signal, wherein the second antenna is operated using the RF calibration values after the switch.

Abstract: A method and system of a configurable phased array transceiver are provided. A first beamforming unit is configured to provide a first beam. A second beamforming unit is configured to provide a second beam. A first bi-directional power controller is configured to combine or to split the first beam and the second beam. Each beamforming unit comprises a plurality of radio frequency (RF) front-ends, each front-end being configured to transmit and receive RF signals. Each beam is independently configurable to operate in a transmit (TX) or a receive (RX) mode.

Abstract: Embodiments of the disclosure relate to optimizing power efficiency of a power amplifier circuit to reduce power consumption in a remote unit in a wireless distribution system (WDS). A power amplifier circuit is provided in the remote unit to amplify a received input signal associated with a signal channel(s) to generate an output signal at an aggregated peak power. In this regard, a control circuit is configured to analyze at least one physical property related to the signal channel(s) to determine a maximum output power of the power amplifier circuit. Accordingly, the control circuit configures the power amplifier circuit according to the determined maximum output power. By configuring the maximum output power based on the signal channel(s) in the input signal, it may be possible to optimize the power efficiency of the power amplifier circuit, thus helping to reduce the power consumption of the remote unit.

Abstract: Certain embodiments include a computer-method includes searching for a receiver having an active first wireless communication protocol. When the receiver is detected, the mobile input device connects to the receiver, and when the receiver is not detected, the method includes searching for a host computer having an active second wireless communication protocol (e.g., Bluetooth®) after the receiver is not detected. The method further includes connecting the mobile input device to the host computer when the receiver is not detected and the active second type of wireless communication protocol is detected. The method then continues to search for the receiver while the mobile input device is connected to the host computer having the second wireless communication protocol, and automatically switches the wireless connection from the host computer having the second wireless communication protocol to the receiver when the first type of receiver is detected.

Abstract: A first microwave backhaul transceiver may comprise a reflector and a signal processing subassembly. The signal processing subassembly may comprise a plurality of antenna elements positioned at a focal plane of the reflector. The signal processing subassembly may process a plurality of microwave signals corresponding to the plurality of antenna elements using a corresponding plurality of phase coefficients and a corresponding plurality of amplitude coefficients. The signal processing subassembly may adjust a radiation pattern of the plurality of antenna elements during operation of the signal processing subassembly through adjustment of the phase coefficients and/or the amplitude coefficients.

Abstract: A method includes generating a reference clock using a crystal oscillator; generating a first clock based on the reference clock using a clock multiplier unit, in which a frequency of the first clock is higher than a frequency of the reference clock by a clock multiplier factor; generating a second lock based on the first clock using a frequency multiplying circuit in accordance with a frequency multiplying signal, in which a frequency of the second clock is higher than the frequency of the first clock by a factor that is equal to either five fourths or three halves, depending on whether the frequency multiplying signal is in a first state or in a second state; dividing down the second clock by a factor of two to generate a first LO (local oscillator) signal; dividing down the first LO signal by a factor of two to generate a second LO signal.

Abstract: A method is disclosed for determining the position of an RFID transponder. Separate signals of at least two electromagnetic alternating fields are emitted from at least two antenna to one RFID transponder. The antenna are spaced at a distance from each other so that the two electromagnetic alternating fields are emitted at a distance from one another. The emitted electromagnetic alternating fields to the one RFID transponder are reflected so that the reflected electromagnetic alternating fields are sent back to the antenna. The transit times of the electromagnetic alternating fields are determined from emission to receiving back at the antenna. The distances between the antenna and the RFID transponder are determined, and the position of the RFID transponder from the at least two distances is determined relative to the at least two antenna.