Abstract: The disclosure relates to techniques for controlling Specific Absorption Rate (SAR) of radio energy transmission. In particular, the disclosure relates to a radio device and a method for controlling radio energy transmission of a plurality of radio entities to comply with a predefined SAR requirement. Such a radio device includes: a plurality of radio entities configured to transmit radio energy; and a controller configured to control the radio energy transmission of the plurality of radio entities to comply with a predefined Specific Absorption Rate, SAR, requirement, wherein the controller is configured to enable at least two radio entities of the plurality of radio entities operating concurrently based on a shared SAR transmission power restriction which allows the at least two radio entities transmitting concurrently at a predefined duty cycle, in particular at 100% duty cycle, without violating the SAR requirement.

Abstract: A wireless communication device includes an antenna and is used for storage as an electrical conductive body. The antenna includes a first conductor and a second conductor, one or more third conductors, a fourth conductor, and a feeding line. The first conductor and the second conductor face each other in a first axis. The one or more third conductors are located between the first conductor and the second conductor and extend in the first axis. The fourth conductor is connected to the first conductor and the second conductor and extends in the first axis. The feeding line is connected to any one of the third conductors. The first conductor and the second conductor are capacitively coupled to each other via the third conductor. The fourth conductor faces a conductor part of the storage.

Abstract: Earpieces and methods of forming earpieces for radio frequency (RF) mitigation are provided. An earpiece is configured to be inserted in an ear canal. The earpiece includes an insertion element and a sealing section disposed on the insertion element and configured to conform to the ear canal. The sealing section is configured to substantially mitigate radio frequency (RF) transmission and to substantially isolate the ear canal from an ambient environment.

Abstract: A transceiver module according to an embodiment of the present disclosure includes a power amplifier, a first transformer, a low-noise amplifier, and a second transformer. The power amplifier amplifies a transmission signal for outputting to an antenna terminal. The first transformer includes a first winding and a second winding. The first winding is connected to the antenna terminal, and the second winding is connected to an output side of the power amplifier. The low-noise amplifier amplifies a reception signal inputted through the antenna terminal. The second transformer includes the first winding and a third winding connected to an input side of the low-noise amplifier.

Abstract: Methods, apparatus and computer programs for controlling the output of a transmission point. A method for controlling the output of a transmission point for a wireless communications network. The method comprises: determining an average output power of the transmission point over a period of time; comparing the average output power to an output power reference value; and allocating data, to be transmitted by the transmission point to one or more wireless devices, to a pool of radio resources. The pool of radio resources is adjusted as a function of the comparison between the average output power and the output power reference value.

Abstract: A communication device has a controller that selects one of at least two second antennas for concurrent transmission with a first antenna. The controller monitors concurrent communication activity of a first and a second transmitter. Based on the concurrent communication activity, the controller identifies respective transmit power limits associated with intermodulation distortion (IMD) for the first antenna transmitting at the first transmit frequency and one of the at least two second antennas transmitting at the second transmit frequency. The controller identifies available total radiated power (TRP), respectively, for each of the at least two second antennas and connects the second transmitter to one of the at least two second antennas having the highest available TRP to optimize communication performance.

Abstract: The present application provides a method and a wireless communication device, which includes detecting one or more operating conditions of the wireless communication device, and determining a normalized energy relative to a monitored energy accumulation over time for each of one or more detected device operating conditions. An amount of already accumulated normalized energy for the detected device operating conditions is compared over an immediately prior window of time. An amount of allowed power to be used during a future sub-period of an upcoming window of time is computed, so as not to exceed an associated limit relative to the overall amount of allowed monitored energy accumulation in each current and upcoming window of time.

Abstract: A method for compensating for degradation of a signal during transmission of the signal includes: performing thermal detection and accordingly generate a thermal detection result indicative of a temperature of a signal processing circuit; and performing property adjustment to adjust a predetermined property of the signal according to the thermal detection result. The property adjustment is performed on the signal according to the thermal detection result associated with previously transmitted signal. After performing the property adjustment, a characteristic value of the signal reaches a preset level.

Abstract: A method and network node for enabling mobility measurements performed by wireless devices. A set of resource blocks are distributed across an available frequency bandwidth, and a pre-defined maximum average transmit power per resource block is available for transmission by the network node. The network node transmits (5:3A) a subset of resource blocks using a first transmit power per resource block which is higher than the pre-defined maximum average transmit power per resource block. The network node also transmits (5:3B) other resource blocks in the set not included in the subset using a second transmit power per resource block which is lower than the pre-defined maximum average transmit power per resource block so that the total transmit power used for transmitting the set of resource blocks does not exceed a total available maximum transmit power.

Abstract: System and method for monitoring FCC compliance of a sector having at least one antenna, the sector being at least partially surrounded by a barrier comprising a plurality of barrier elements. The system includes a probe unit, mounted behind the at least one antenna, comprising an RF probe to measure RF emissions and at least one of: a receiver to receive a signal indicative of at least one of an opening of a service door in a vicinity of the sector and disturbance of at least one of the barrier elements; and a proximity sensor triggerable when an object moves within a too close zone to the probe unit.

Abstract: The present invention provides a method and electronic device for controlling transmission power.

Abstract: Provided are an electronic device and a method for controlling an operation of the electronic device. The method may include sensing a temperature of at least one component forming a portion of the electronic device and generating a first signal based on the sensed temperature; sensing at least one of a movement of the electronic device, an approach state of an object to the electronic device, and a contact state of the object with the electronic device and generating a second signal based on at least one of the movement of the electronic device, the approach state of the object, and the contact state of the object; and controlling an operation of the at least one component based on at least one of the first signal and the second signal.

Abstract: Provided are an electronic device and a method for controlling an operation of the electronic device. The method may include sensing a temperature of at least one component forming a portion of the electronic device and generating a first signal based on the sensed temperature; sensing at least one of a movement of the electronic device, an approach state of an object to the electronic device, and a contact state of the object with the electronic device and generating a second signal based on at least one of the movement of the electronic device, the approach state of the object, and the contact state of the object; and controlling an operation of the at least one component based on at least one of the first signal and the second signal.

Abstract: A power supply apparatus for a power amplifier includes a converter configured to convert input power into driving power for the power amplifier, a detector configured to transfer the driving power from the converter to the power amplifier, including an inductor formed on a detection path of the driving power, and configured to detect power information regarding the driving power to generate a detected signal, and a controller configured to control power conversion of the converter based on an envelope signal of a signal input to the power amplifier and the detected signal.

Abstract: An information processing system, a control method and a non-transitory storage medium through which reproduction that matches characteristics of devices of a playback side can be performed by generating abstracted presence reproduction information are provided. The information processing system includes: a generation unit that generates abstracted presence reproduction information depending on features extracted from content data; and a storage controller that controls the presence reproduction information generated by the generation unit to be stored in association with the content data.

Abstract: An electronic device includes a communication unit; a memory storing instructions; and a processor, coupled to the communication unit and memory, to execute instructions to determine, based on at least one of a state of the electronic device and a distance between the electronic device and a user, a value of specific absorption rate (SAR) corresponding to the value of SAR that corresponds to a power of the electronic device; determine, based on the SAR, an average SAR on a designated time interval; determine, in response to the average SAR being greater than a first designated value, a reference value limiting a maximum power of the electronic device; and transmit a signal based on the determined reference value through the communication unit, wherein the reference value includes a value obtained by subtracting a second designated value from a value of maximum output power of the electronic device.

Abstract: A retrofittable wireless power receiver is disclosed for providing inductive power reception functionality to at least one host device. The retrofittable wireless power receiver comprises a support platform, a secondary inductor operable to couple inductively with a primary inductor associated with a wireless power transmitter; a power reception circuit operable to control inductive power transfer from the primary inductor to the host device, a synchrorectifier, and a near field communication antenna. The retrofittable wireless power receiver further comprises an array of electrical contacts that comprises a VOUT and GND pair of terminals wired to the sychrorectifier, a DISABLE terminal wired to the power reception circuit and configured to disable power transfer, and a pair of data contacts wired to the near field communication antenna.

Abstract: A display apparatus with a radio frequency (RF) sensor and a user detection method using an RF sensor are provided. The display apparatus includes: a display panel configured to display an image; a support frame located in a back area of the display panel and configured to support parts of the display apparatus; and a radio frequency (RF) sensor configured to be arranged in the support frame for performing one of transmitting a radio frequency signal to a front area of the display panel and receiving the radio signal from the front area of the display panel, wherein the radio frequency signal which is transmitted or received passes through the display panel.

Abstract: In a wireless microphone having an antenna in a lower part of a main body, a wireless microphone in which a microphone main body serves as a ground plane, which secures stable antenna ground by being gripped by a user, and which is capable of obtaining good RF performance is provided. The microphone main body includes a holder member made of metal for holding at least an antenna circuit part, a cylindrical cover member made of metal for covering a periphery of the holder member, and a cylindrical grip end member made of metal, inserted into a rear end side of the cover member, and connected with a rear part side of the holder member. The holder member has conduction with the cover member via the grip end member.

Abstract: Enhanced sounding reference signal (SRS) transmissions for multiple input, multiple output (MIMO) operation are disclosed in which a user equipment (UE) detects an observed interference level for each receiver chain of the UE. In response to an imbalance, the UE precodes a SRS targeting downlink operation to indicate the imbalance. The UE then transmits the precoded SRS. In alternative aspects, the precoded SRS vector may be determined by an evolved nodeB (eNB). In such aspects, the eNB determines the precoded SRS vector targeting downlink operations for the served UEs, wherein the determined precoded SRS vector includes determining the precoded SRS vector on a per UE basis, enabling the precoded SRS vector for either one or both of frequency division duplex (FDD) systems and time division duplex (TDD) systems, or enabling the precoded SRS vector for aperiodic SRS only. The eNB then transmits the determined precoded SRS vector to the UE.

Abstract: A method and device are for calibrating an antenna. At least one switch is spanning sections of a radiating antenna element. A controller is designed to selectively close the switch to be conductive, thus effectively short-circuiting the actual section of the antenna element. The method includes: installing the antenna for field use at least for transmission or reception of signals; then measuring the reflected power from the antenna at least for a number of frequencies or frequency ranges at more than one setting of the switch; and storing the settings that gives a desirable result of reflected power at an actual frequency or frequency range.

Abstract: A method, mobile station, and user-based communication system are provided that determine that a mobile station intends to transmit over an uplink, determine whether the mobile station is being operated in a body-worn position, determine an uplink transmit power scale factor, and when the mobile station is being operated in a body-worn position, apply the uplink transmit power scale factor to an uplink transmit power to produce a scaled uplink transmit power. In one embodiment, the user-based communication system includes the mobile station and an audio accessory and determines whether the mobile station is being operated in a body-worn position based on a determination of whether the audio accessory is actively engaged.

Abstract: A mobile device includes an antenna, an ESD (Electrostatic Discharge) protection component, a plurality of branches, and a switch. The antenna is configured to transmit and receive an RF (Radio Frequency) signal. The branches provide different inductances or different capacitances, and are respectively coupled to a ground voltage terminal. The switch is coupled through the ESD protection component to the antenna, and switches between the branches according to a control signal such that the antenna is capable of operating in a plurality of frequency intervals. The ESD protection component is configured to protect the switch from being damaged.

Abstract: A user device obtains motion data from an inertial sensor included in the user device. The user device receives a command to transmit information at a specified transmit power level. The user device determines, based on the motion data, whether the presence of a human body part is detected. When the presence of a human body part is detected, the user device reduces a current transmit power level below the specified transmit power level.

Abstract: A user device transmits data at a first transmit power level. The user device detects a presence of a human body part within a predetermined distance from an antenna of the user device using one or more sensors disposed at a back side of the user device. In response to the detection of the presence of the human body part, the user device transmits information at a second transmit power level that is less than the first transmit power level.

Abstract: Various embodiments of the present invention recognize at least two zones of operation for a communication device. In a first zone, which is sufficiently spaced away from a human head or body that SAR limits will be met, transmit power delivered to an antenna of a communication device may be maximized within any other constraints under which the communication device operates. In a second zone, which is not sufficiently spaced away from a human head or body, transmit power is redistributed such that SAR limitations are met without affecting the transmit power control loop of the communication device. For example, a second antenna physically disposed at a different location within the communication device may be used either instead of, or in addition to, the first transmit antenna in order that the SAR limits are met.

Abstract: An intrinsic safety approach is provided for a battery powered communication device. Sparking is prevented at radio contacts during attachment and removal of a battery (104, 204, 304, 404) from a radio (102, 202, 302, 402) through the use of switches (112, 212, 312, 412/424) to isolate the radio capacitors from the radio contacts and/or dissipate energy from the radio capacitor through a discharge resistor (214, 314, 414).

Abstract: Methods, systems, apparatus, and computer programs encoded on computer storage medium, for receiving a set of expected activities, each expected activity in the set of expected activities including an activity that is expected to be performed by a computing device, determining one or more time periods based on the set of expected activities, determining one or more expected rates of change of state of charge (SOC) of a battery of the mobile computing device by, for each time period of the one or more time periods, determining an expected rate of change of SOC based on a base rate of change of SOC and one or more expected activities associated with the time period, and determining an estimated remaining time based on the one or more expected rates of change of SOC, the remaining time corresponding to a time at which an expected SOC is less than a threshold SOC.

Abstract: A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device makes a determination as to whether transmitting the information at the specified transmit power level will cause the user device to violate a condition. When it is determined that transmitting the information at the specified transmit power level will cause the user device to violate the condition, the user device dynamically computes a new transmit power level that is lower than the specified transmit power level. The user device then transmits the information at the new transmit power level.

Abstract: An adapter for coupling to a process control transmitter of the type used to monitor a process variable in an industrial process includes a first connection configured to couple to a first side of a two wire process control loop, a second connection configured to couple to a second side of the two wire process control loop and in series with a first connection to a process control transmitter, and a third connection configured to couple to a second connection of the process control transmitter. Wireless communication circuitry is coupled to at least the third connection and is configured to provide wireless communication for the process control transmitter. Intrinsic safety circuitry coupled to at least one of the first, second and third connections is configured to limit transfer of electrical energy to a value which is less than an intrinsic safety value.

Abstract: The invention relates to a mobile telecommunication device (100) for establishing a telecommunication connection in the radio frequency range with a base station (102; 104; 1100), the mobile telecommunication device comprising; at least a first (106) and a second antenna (108), an electromagnetic shield (110) located between the first and the second antenna, a logic component (1000), wherein the first and the second antenna are adapted to transmit and receive telecommunication signals of the same frequency band, and wherein the logic component selects whether the first or the second antenna is used for the telecommunication connection with the base station.

Abstract: A method is disclosed including, using a measurement antenna in a wireless device, determining whether a user is proximate the wireless device at least by transmitting a signal using the measurement antenna; in response to a determination the user is not proximate the wireless device, transmitting the signal using a main antenna at a normal transmit power; and in response to a determination the user is proximate the wireless device, transmitting the signal using the main antenna at a limited transmit power. Another method includes in response to a determination a user is not proximate a wireless device, transmitting a signal using a first set of main antennas; and in response to a determination the user is proximate the wireless device, transmitting the signal using the second set of main antennas. Apparatus and program products are also disclosed.

Abstract: A system for power amplifier over-voltage protection includes a power amplifier configured to receive a system voltage, a bias circuit configured to provide a bias signal to the power amplifier, and a power amplifier over-voltage circuit configured to interrupt the bias signal when the system voltage exceeds a predetermined value, while the system voltage remains coupled to the power amplifier.

Abstract: A system may include a modifiable mobile device having at least two antennas coupled to fractional amplifiers, with returned power detectors. A beamformer unit provides adaptive beam shaping pattern, and a baseband processor provides beam pattern requirements, wherein the beamformer unit modifies the beam pattern requirements with return loss sampling information to shape the adaptive beam pattern so that a transmitted beam pattern minimizes transmitted power reflected back to the mobile device. A method may include regularly measuring a return power level, if output power is greater than a specific absorption rate level, comparing the return power level to a first threshold, else implementing mobile transmit diversity (MTD), and repeating. If the return power level is greater than the first threshold, implementing a MTD combined with reflection-based beamforming that modifies beam pattern requirements of the mobile device with return loss sampling information to create an adaptive beam pattern.

Abstract: A data module operable in a wireless communication system is provided. The data module comprises a plurality of circuit components, one or more temperature sensors, and a thermal management unit. The temperature sensors are configured to determine the temperature of a corresponding circuit component. The thermal management unit is configured to determine one or more thermal characteristics of the data module based on the temperature determinations, and to generate one or more power control point signals indicating whether to adjust corresponding operating characteristics of a target component based on the determined thermal characteristics.

Abstract: This invention describes a method by which the output power of a circuit or system at any point can be efficiently and cost effectively sampled in a simple and broadband fashion for processing in a closed loop system for applications such as power level control in very broadband circuits. A divider circuit consisting of a selection of passive lumped elements is used to create a very broadband means of sampling the RF power level at any point in a transmission line. Unlike prior art schemes of this nature, this circuit does not rely upon extremely accurate element values and minimization of parasitic reactances. Used in conjunction with a balanced detector-logarithmic or other amplifier combination this invention result in a very broadband low cost simplified realization of the traditional costly bandwidth limited directional coupler-detector combination.

Abstract: A high-frequency device includes a wireless IC chip and a board which is coupled to the wireless IC chip and electrically connected to radiator plates, and an inductor and/or a capacitance are provided as a static electricity countermeasure element in the board. The inductor is connected in parallel between the wireless IC chip and the radiator plates, and its impedance at the frequency of static electricity is less than an impedance of the wireless IC chip.

Abstract: An information processing apparatus has radio communication function. A tilt detection unit detects a tilt of the information processing apparatus. An output changing unit changes an output of radio waves from an antenna for radio communication. Based on a detection result through the tilt detection unit, when a tilt ? of a predetermined external surface of a chassis of the information processing apparatus to a horizontal surface H is a predetermined angle or less, an output controller reduces an output of radio waves from the antenna to a predetermined value or less with respect to the output changing unit.

Abstract: Methods, systems, apparatus, and computer programs encoded on computer storage medium, for receiving a set of expected activities, each expected activity in the set of expected activities including an activity that is expected to be performed by a computing device, determining one or more time periods based on the set of expected activities, determining one or more expected rates of change of state of charge (SOC) of a battery of the mobile computing device by, for each time period of the one or more time periods, determining an expected rate of change of SOC based on a base rate of change of SOC and one or more expected activities associated with the time period, and determining an estimated remaining time based on the one or more expected rates of change of SOC, the remaining time corresponding to a time at which an expected SOC is less than a threshold SOC.

Abstract: Embodiments of circuits, apparatuses, and systems for a protection circuit to protect against overdrive or overvoltage conditions. Other embodiments may be described and claimed.

Abstract: Communication is provided which includes receiving a transmitted radio signal at a powerline wherein the powerline functions as a receiving antenna for the wirelessly transmitted radio signal. The powerline is coupled to an input of a radio receiver using a coupler to communicate the radio signal to the radio receiver. For calibration purposes a second antenna not coupled to powerline may be used. A method for powerline communication across transformers, open circuit breakers, and other devices is also provided. In addition, a method of monitoring a device connected to a powerline is provided.

Abstract: Embodiments include systems and methods for controlling radiation of radio frequency (RF) energy by a wireless communication device that includes a transmitter, an antenna, a vector field sensor, and a processing system. The transmitter produces an analog RF signal, and the antenna radiates the analog RF signal into an environment. The vector field sensor senses an intensity of a vector field resulting from the analog RF signal radiated by at least the antenna (and possibly other portions of the device). The processing system determines whether a value representing the intensity is greater than a first threshold, and when the value is greater than the first threshold, the processing system causes the radiated RF energy produced by the wireless communication device to be decreased.

Abstract: A garage management and monitoring system defines and manages each operational event in a parking facility. Access events, management events, equipment operation events, equipment malfunction events, security events and defined anomaly events are labeled and parsed into a relational database, which is used for generating reports, creating logs, making management decisions, reconstructing accidents, and so on. The equipment includes a computer terminal, a reader, an identifying item or code capable of being read by the reader to control access to the facility, an IP camera, and a garage door or vehicle gate with safety sensors. Each defined event can be codified on the server and/or local controller to create an event library that is downloaded to the controller.

Abstract: One illustrative technique for use in a mobile device having a visual display includes monitoring an operating temperature at the device and, when the monitored operating temperature is greater than a first threshold temperature, allowing only emergency communication and providing a visual indication indicating that only emergency communication is allowed.

Abstract: A system may include a modifiable mobile device having at least two antennas coupled to fractional amplifiers, with returned power detectors. A beamformer unit provides adaptive beam shaping pattern, and a baseband processor provides beam pattern requirements, wherein the beamformer unit modifies the beam pattern requirements with return loss sampling information to shape the adaptive beam pattern so that a transmitted beam pattern minimizes transmitted power reflected back to the mobile device. A method may include regularly measuring a return power level, if output power is greater than a specific absorption rate level, comparing the return power level to a first threshold, else implementing mobile transmit diversity (MTD), and repeating. If the return power level is greater than the first threshold, implementing a MTD combined with reflection-based beamforming that modifies beam pattern requirements of the mobile device with return loss sampling information to create an adaptive beam pattern.

Abstract: Embodiments of circuits, apparatuses, and systems for a protection circuit having a control element with an attenuation state to protect against overload conditions. Other embodiments may be described and claimed.

Abstract: A method and apparatus to supply a power voltage to a mobile device in a variable manner in order to provide high output power and a high quality sound environment and a mobile device using the same. The apparatus includes a volume control unit to detect installation of an external power supply and to generate a voltage control value corresponding to a current volume level, and a DC-DC converter unit to convert a voltage of an internal power supply in a variable manner on the basis of the voltage control value generated in the volume control unit in order to drive the switching power amplifier.

Abstract: A device including a gain control element coupled prior to or within a radio frequency (RF) power amplifier (PA) with an adaptive parametric PA protection circuit is described. In an exemplary embodiment, the device includes a gain control element coupled prior to a radio frequency power amplifier with a power stage with corresponding transistor breakdown threshold values, having an adaptive parametric PA protection circuit configured to receive at least one power stage drain-source voltage parameter value, at least one power stage drain-gate voltage parameter value, and at least one power stage drain-source current parameter value, and including an adaptive parametric PA protection circuit having a first section for processing the parameter values and a second section for generating a gain correction signal to adjust the gain control element with optimal power added efficiency (PAE) for the power stage within the corresponding transistor breakdown threshold values.

Abstract: A system including a first electrode, a second electrode, a first circuit and a second circuit. The second electrode is capacitively coupled to the first electrode. The first circuit is configured to receive data via a network and transmit a signal via the first electrode based on the data. The second circuit is configured to receive data via the network and receive a current that corresponds to the signal via the second electrode based on the data.

Abstract: An apparatus having a loop device fastened to a communication unit that permits a user to securely hold the unit using one or more fingers inserted through a loop device for efficient and stable operation of a keyboard, touch screen, trackball or the like using the user's thumb.