Abstract: A switch module includes a filter that allows a signal in a first frequency range to pass therethrough, a filter that allows a signal in a second frequency range to pass therethrough, an impedance load circuit, and an antenna switch including a common terminal connected to an antenna element, a first selection terminal connected to the filter, a second selection terminal connected to the filter, and a third selection terminal connected to the impedance load circuit. When only one frequency range is selected from among the first and second frequency ranges, the antenna switch connects the common terminal to only one of the first and second selection terminals and connects the common terminal to the third selection terminal.

Abstract: A method operates a signal coupling device. The signal coupling device contains at least one signal branch section which is or can be connected to a terminal-side interface of the signal coupling device using signaling. At least one signal property of a signal applied to the at least one signal branch section is determined. A signal type is determined on the basis of the at least one signal property. A time duplexing signal or a frequency duplexing signal is determined as the signal type. A signal-type-specific connection is established between the terminal-side interface and an antenna-side interface of the signal coupling device.

Abstract: Apparatuses for playing signals received from the internet or other information highway or a stored database on one or more speakers are described. The apparatus has a receiver for receiving information from preselected addresses; a processor for interpreting the signals; and at least one speaker for playing signals from the internet. There is at least display device in the form of a holographic projector connected to the receiver for displaying a 3D holographic image received from the internet. The processor selects images that correspond with the signals played by the speaker.

Abstract: Systems, methods, and computer-readable media are disclosed for using shared antennas for multi-protocol communication. Example devices may include a first antenna, a second antenna, memory and at least one processor configured to access the memory and execute computer-executable instructions to determine a first request for a first wireless radio to transmit first data for a first duration, determine a second request for a second wireless radio to receive second data during the first duration, and determine that a first signal strength associated with the first wireless radio is less than or equal to a first threshold. Certain embodiments may be configured to determine that communication associated with the first wireless radio has a higher priority than communication associated with the second wireless radio, cause the first wireless radio to transmit the first data using a first antenna for the first duration, and cause a second antenna to be idle.

Abstract: A measurement system for measurements of a device under test (DUT) is provided. The measurement system includes a first test antenna configured to send radio frequency (RF) radiation to the DUT and to receive RF radiation sent by the DUT. The system further includes a positioning device, including at least one motor, configured to move the DUT about at least one axis of rotation. The system further includes a geometrical fixture configured to absorb RF radiation and to de-couple or shield the DUT from unintended or spurious RF radiation of one or more of the at least one motor and the first test antenna.

Abstract: An opto-electronic oscillator (10) comprising: an optical source (12) to generate an optical carrier signal having a carrier wavelength; an optical phase modulator (14) to apply a sinusoidal phase modulation to the optical carrier signal to generate two first order sidebands having a ? phase difference between them; an optical phase shifter (16) comprising an optical resonator configured to apply a substantially ? phase-shift to one of the first order sidebands at a preselected wavelength within an optical spectrum of said first order sideband; and a photodetector (18) configured to perform optical heterodyne detection of the optical carrier signal with both: said one of the first order sidebands substantially it phase shifted by the optical resonator; and the other of the first order sidebands, to generate an electrical carrier signal (20), and wherein a first part of the electrical carrier signal (20a) is delivered to an electrical output (22) and a second part of the electrical carrier signal (20b) is deli

Abstract: In a pairing establishment process, a controller (220) of a central (200) notifies a peripheral of the application identification information on the central (200). The controller (220) of the central (200) stores the device identification information on the peripheral received therefrom in a ROM (240). The application identification information is information to identify an application (that is, software) owned by the central (200). The application is to perform various communications with the peripheral.

Abstract: An envelope tracking (ET) bias circuit includes a detection circuit configured to select an ET operation voltage input through a first input terminal of the detection circuit, or an envelope signal detected from a radio frequency (RF) signal input through a second input terminal of the detection circuit, in response to a first control signal, to and output he selected one of the ET operation voltage and the envelope signal as a detection signal; an amplification circuit configured to amplify the detection signal, and output the amplified detection signal; and a bias output circuit configured to generate an ET bias current based on the amplified signal, and output the generated ET bias current.

Abstract: One embodiment is directed to a system for use with a coverage area in which one or more wireless units wirelessly transmit using a wireless radio frequency spectrum. The system comprises a first unit, and a plurality of second units communicatively coupled to the first unit using at least one communication medium. Each of the plurality of second units generates respective digital RF samples indicative of a respective analog wireless signal received at that second unit. Each of the plurality of second units communicates the respective digital RF samples generated by that second unit to the first unit using the at least one communication medium. The first unit digitally sums corresponding digital RF samples received from the plurality of second units to produce summed digital RF samples. The system is configured so that an input used for base station processing is derived from the resulting summed digital RF samples.

Abstract: Techniques are described for providing users of client devices with coordinated access to Information and/or functionality of multiple types, such as by using multiple types of connections to multiple information services of distinct types that exchange context information related to activities of the users and/or clients. The client devices can be, for example, wireless devices with multiple distinct modes (e.g., voice and data modes) for different types of connections with different types of servers (e.g., voice servers and data servers). In some situations, coordination between different servers allows multiple distinct interaction sessions of different types with different servers to remain synchronized or otherwise coordinated over time as the user performs interactions via the different sessions. This abstract is provided to comply with rules requiring an abstract, and is not intended to be used to interpret or limit the scope or meaning of the claims.

Abstract: One embodiment is directed to a system for use with a coverage area in which one or more wireless units wirelessly transmit using a wireless radio frequency spectrum. The system comprises a first unit, and a plurality of second units communicatively coupled to the first unit using at least one communication medium. Each of the plurality of second units generates respective digital RF samples indicative of a respective analog wireless signal received at that second unit. Each of the plurality of second units communicates the respective digital RF samples generated by that second unit to the first unit using the at least one communication medium. The first unit digitally sums corresponding digital RF samples received from the plurality of second units to produce summed digital RF samples. The system is configured so that an input used for base station processing is derived from the resulting summed digital RF samples.

Abstract: The disclosed technology herein relates to delivering communications services, and more particularly to portable self-contained rugged systems and methods for providing and supporting communications capabilities in remote areas including but not limited to railway yards.

Abstract: A mobile radio communication device is provided. The mobile radio communication device include; a near field communication interface configured to communicate with a near field communication device using a near field communication standard; a further communication interface configured to communicate with a further communication device using a further communication standard; and a conversion circuit configured to convert information between the near field communication standard and the further communication standard.

Abstract: A circuit arrangement for compensating for an attenuation occurring in an antenna signal link between a mobile radio terminal and an antenna has at least one antenna signal amplifier in the antenna signal link and a control unit for adjusting a gain factor. The antenna signal conducted through an associated antenna signal amplifier is amplified or attenuated. The circuit arrangement has a detection unit for detecting an antenna signal power (PM, PA) of the antenna signal in the signal path of the antenna signal link. The control unit is configured for changing the gain factor, detecting a change, changing the transmit power (PM) of the mobile radio terminal, and adapting the gain factor to the coupling attenuation of the antenna signal link in dependence on a detected response of the mobile radio terminal.

Abstract: A method for determining a status of a user utilizing wireless earpieces includes performing sensor measurements of a user utilizing at least optical sensors of the wireless earpieces, wherein the optical sensors detect metabolic abnormalities of the user, analyzing the sensor measurements, determining the status of the user utilizing at least sensor measurements from the optical sensors of the wireless earpieces, and communicating an alert to the user in response to there being a change in the status of the user. A wireless earpiece or set of wireless earpieces with optical sensors for detecting metabolic abnormalities are also provided.

Abstract: A portable device is configured to provide geographic information to a head unit of a vehicle equipped with a display device. One or more processors determine a user context related to a geographic location and detect that the portable device has been communicatively coupled to the head unit of a vehicle. The one or more processors transmit to the head unit, without an express user command, a request that the head unit accept data from the portable device for output via the display device. In response to receiving an indication that that the request has been granted, the one or more processors cause information related to the geographic location to be displayed via the display device, without an express user input at the portable device.

Abstract: A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. A reflective surface is positioned adjacent the backside of each NFC coupler to reflect back side electromagnetic towards the port region.

Abstract: An electronic device includes a housing including a first surface, a second surface, and a third surface defining an internal space of the housing, a touch screen display interposed between the first surface and the second surface, and a sensor module disposed under the touch screen display and including a light emitting unit and a light receiving unit, wherein the third surface includes a plurality of through holes each including optical structures, wherein a portion of light emitted from the light emitting unit is guided to an exterior of the electronic device through a first optical structure of a first through hole, and wherein at least a portion of light introduced from the exterior of the electronic device is guided to the light receiving unit on a second optical structure of a second through hole.

Abstract: A wireless device includes a radio-frequency module, a modem module, and a control unit. The radio-frequency module and the modem module operate either in a first operation mode or in a second operation mode. The control unit, coupled to the RF and the modem module, generates a control signal to indicate to the RF and the modem module to operate in the first operation mode or to operate in the second operation mode. A first set of signal formats corresponding to the first operation mode is a superset of a second set of signal formats corresponding to the second operation mode, and a first power consumption corresponding to the first operation mode is higher than a second power consumption corresponding to the second operation mode.

Abstract: A method of determining a reference clock in a mesh network includes receiving multiple signals, correlating the multiple signals with a local signal generated by the first node to determine a coarse set of time differences, refining the coarse set of time differences using a phase of a carrier signal of the multiple signals to produce a refined set of time differences, and using the refined set of time differences to define a reference clock.