Abstract: Systems of multiple transmitters and multiple receivers, allowing receivers to identify the transmitters from which reference signals originate. Identification is according to frequency offset patterns based on transmitter and local oscillator frequencies, and is particularly suitable in radio-frequency integrated-circuit devices and MIMO radar systems.

Abstract: Techniques for more effectively and efficiently obtaining current morphology data are described. Measurement data is transmitted by user equipment to a central location such as a communication network or another entity such as in remote servers, e.g. the cloud. The recipient of such data, or a third party that receives such data from the recipient, utilizes the data, e.g. signal strength measurements and related data, to determine morphology data for corresponding geographic locations, e.g. altitude, longitude, and latitude.

Abstract: Systems, methods, and computer program products for portable storage devices are disclosed. A portable storage device may communicate with other devices utilizing a standardized communication system (“SCS”) to transmit data directly between devices including an SCS. The SCS may discover available devices. The portable storage device may be a wearable device. A user may be able to keep the portable storage device with them and access files on the portable storage device wirelessly using any other device utilizing an SCS.

Abstract: An electronic device according to various exemplary embodiments may include a housing; a first antenna module configured to be disposed in a first end portion in the housing and to include a first antenna and a first amplifier circuitry to output a signal corresponding to the first antenna, a second antenna module configured to be disposed in a second end portion in the housing and to include a second antenna and a second amplifier circuitry to output a signal corresponding to the second antenna, and a transceiver configured to include a first port connected to the first antenna through the first amplifier circuitry and a second port connected to the second antenna through the second amplifier circuitry.

Abstract: Exemplary embodiments dynamically select the LO frequency and mixer mode (i.e., low-side LO injection or high-side LO injection) for upconversion based on the desired RF output frequency in order to mitigate the effects of spurious and LO leakage signals that could violate radiation emission limits, e.g., in the case where the IF signal frequency is smaller than the RF operating band. By dynamically switching the LO frequency and mixer mode as a function of the requested operating RF channel, low-level emissions and spurious signal compliance with restricted bands can be achieved.

Abstract: Disclosed is an operating method of an electronic device, including identifying a movement of the electronic device while displaying a screen of a first application in a first orientation, determining whether the electronic device is rotated by a predesignated angle, based on the movement, and in response to determining that the electronic device is rotated by the predesignated angle, displaying a screen of a second application in a second orientation different from the first orientation, wherein the second application corresponds to a rotation direction of the electronic device among a plurality of applications.

Abstract: This disclosure describes systems, methods, and devices related to efficient concurrent multichannel discovery and reception. A device may determine high performance communications circuitry and low performance communications circuitry within a first component of the device. The device may determine one or more high power radio frequency (RF) chains associated with at least one of a high frequency band or a low frequency band. The device may determine one or more low power RF chains associated with at least one of the high frequency band or the low frequency band.

Abstract: A clamping circuit that may be used to provide efficient and effective voltage clamping in an RF front end. The clamping circuit comprises two series coupled signal path switches and a bypass switch coupled in parallel with the series coupled signal path switches. A diode is coupled from a point between the series coupled signal path switches to a reference potential. In addition, an output selection switch within an RF front end has integrated voltage clamping to more effectively clamp the output voltage from the RF front end. Additional output clamping circuits can be used at various places along a direct gain signal path, along an attenuated gain path and along a bypass path.

Abstract: A communication device, method, and computer program product provide an antenna subsystem including a first antenna positioned proximate to a second antenna. A radio frequency (RF) frontend includes a transmitter, a receiver, and an antenna tuning module coupled to the antenna(s). A controller is communicatively coupled to the RF frontend and a memory containing a proximal antenna association tuning (PAAT) application. The controller executes the PAAT application to enable the communication device to: (i) transmit a reference signal by the transmitter using the first antenna of the more than one antenna; (ii) measure an impedance value of the first antenna based on the transmission of the reference signal; (iii) identify a second antenna of the more than one antenna that is proximate to the first antenna; and (iv) tune, via the antenna tuning module, the first and the second antenna based on the impedance value of the first antenna.

Abstract: An event notification system includes a control assembly and a wireless device. The wireless device is configured to communicate with the control assembly at dynamically configurable frequencies, and communicates with the control assembly at a first frequency when in a disabled status, and communicates with the control assembly at a second frequency when in an enabled status.

Abstract: A non-linearity correction module, an optional droop corrector, and a zero-IF receiver with the non-linearity correction module and an optional droop corrector, wherein the non-linearity correction module is configured to generate a non-linearity term scaled to mitigate an inter-modulation component term of a RF signal received by the zero-IF receiver based on a test signal to enhance linearity in the zero-IF receiver and the optional droop corrector is configured to compensate a droop within a signal band of interest, caused by an analog low pass filter filtering a RF signal received by the zero-IF receiver, before a down-converted RF signal is fed into the non-linearity module.

Abstract: Antenna tuning may include performing multiple sampling on a transmission signal applied to an antenna and a reception signal corresponding to the transmission signal during a period for which a first frequency is allocated to the transmission signal, such that sampling data are generated based on the multiple sampling, the sampling data including data corresponding to the transmission signal and data corresponding to the reception signal. The method may include calculating a parameter based on the sampling data, and tuning the antenna based on the parameter. A device may include a control circuit to perform the multiple sampling and set a tuning value, a radio frequency front-end to modulate the transmission signal based on the frequency and apply a return signal of the transmission signal or a reflection signal, and an antenna tuner to adjust a resonance frequency or an impedance of the antenna according to the tuning value.

Abstract: Systems, apparatuses and methods may provide for technology that generates a real-time histogram image based on real-time signal strength indicator (SSI) information associated with a plurality of beacons adjacent to an indoor area. The technology may also input the real-time histogram image to a neural network and automatically determine a location of a mobile recipient of the real-time SSI information in the indoor area based on an output of the neural network.

Abstract: To provide an electronic device having an antenna function without having to enlarge the size of the device. The electronic device includes a shielding case, a feeding loop, an operation knob, and an antenna element. The shielding case blocks passage of electromagnetic waves. The feeding loop is a conductor that is disposed annularly along a prescribed plane outside the shielding case and is connected to a radio communication circuit encompassed within the shielding case. The operation knob is configured to be rotatable around a specific axis that passes through an annular ring formed by the feeding loop. The antenna element is an open-loop conductor fixed to the operation knob.

Abstract: An apparatus includes a radio-frequency (RF) receiver, which includes an automatic gain-control (AGC) circuit to use a gain signal to set a gain of front-end circuitry of the RF receiver. The RF receiver further includes an interference-detection circuit to use a value of the gain signal to detect an interference signal.

Abstract: A first transmitting circuit transmits a first transmission signal of a first frequency band for 2G. A second transmitting circuit transmits a second transmission signal of a second frequency band for 2G. The second frequency band is higher than the first frequency band. A bypass terminal is connected to an output end of the second transmitting circuit. A third transmitting circuit transmits a third transmission signal of a third frequency band for 4G or 5G. A frequency of a harmonic wave of the third transmission signal overlaps the second frequency band. A substrate includes a ground layer. The ground layer is disposed between part of the second transmitting circuit and part of the third transmitting circuit.

Abstract: A radio frequency (RF) signal transceiver is provided. The RF signal transceiver includes a first transformer, a signal transceiving processor, a signal receiving amplifier, and a signal transmitting amplifier. The first transformer is coupled to an antenna through a first end of a primary side, and two endpoints of a secondary side of the first transformer receive and transmit a pair of differential signals. The signal transceiving processor receives a pair of input differential signals from the secondary side of the first transformer and generates a pair of processed differential signals. The signal receiving amplifier is coupled to the signal transceiving processor and is configured to receive and amplify the pair of processed differential signals. The signal transmitting amplifier is coupled to the secondary side of the first transformer and provides a pair of transmission differential signals to the secondary side.

Abstract: A system includes a radio frequency (RF) receiver having an input, and an antenna terminal configured to connect to an antenna. The system further includes one or more switches that switch the receiver input of the RF receiver to connect to a terminating load that is not an antenna or to an internal antenna, and noise level measurement circuitry that measures a first RF noise level across the terminating load or the internal antenna. The one or more switches further switch the receiver input of the RF receiver to connect to the antenna terminal, and the noise level measurement circuitry further measures a second RF noise level received at the antenna terminal. The system also includes a controller that determines whether an external antenna is connected to the antenna terminal based on the first RF noise level and the second RF noise level.

Abstract: The present invention relates to the control and operation of wireless communication devices and systems compatible with cellular telephones and other devices, and particularly to improvements in the functionality of those devices for use in conjunction with a variety of sports and recreational activities.

Abstract: An antenna apparatus for a mobile terminal is provided. The antenna apparatus includes an antenna pattern, a first electric circuit and a second electric circuit respectively connected between both ends of the antenna pattern and a system ground, and a third electric circuit disposed between the antenna pattern and a feeding line, wherein the first electric circuit and the second electric circuit extend electrical wavelengths of the antenna pattern and the third electric circuit increases input impedance matching.