Abstract: Systems, devices and methods related to multi-band power amplifier. In some embodiments, a power amplifier module includes a power amplifier having an output stage and configured to receive a signal. The power amplifier module also includes a first programmable harmonic termination circuit in electrical communication with the output stage of the power amplifier. The first programmable harmonic termination circuit includes a first plurality of capacitors and a first plurality of switches, with at least one of the first plurality of capacitors being in electrical communication with at least one of the first plurality of switches. The power amplifier module further includes a controller configured to modify a configuration of the first plurality of switches of the first programmable harmonic termination circuit based at least in part on a second harmonic frequency of the signal.

Abstract: A mobile phone cover is provided comprising: a holder 120, 1120, 2120, 3120 for receiving and retaining a mobile phone 108, the mobile phone comprising an energy supply; a portable charging device 106, 1106, 2106, 3106 having two or more charging stations 110, 1110, 2110, 3110, each charging station 110, 1110, 2110, 3110 being configured and arranged for receiving and retaining a rechargeable instrument 104, the rechargeable instrument 104 comprising an energy storage; the portable charging device 106, 1106, 2106, 3106 being further configured and arranged: to transfer energy, in use, from the energy supply of the mobile phone 108, placed in the holder, to the two or more charging stations 110, 1110, 2110, 3110; and to transfer energy, in use, from the charging stations 110, 1110, 2110, 3110 to the energy storage of the rechargeable instrument 104 placed in the respective charging station 110, 1110, 2110, 3110.

Abstract: Disclosed herein are a method for eliminating passive intermodulation distortion (PIMD) and an antenna apparatus using the same. According to an embodiment, the antenna apparatus includes a main antenna used for transmission and reception of an RF signal; an auxiliary antenna used for reception of an RF signal; and a passive intermodulation distortion (PIMD) eliminator configured to calculate PIMD contained in a received signal of the main antenna using a received signal of the auxiliary antenna, and to eliminate the calculated PIMD from the received signal of the main antenna.

Abstract: Devices, systems, and methods for multi-band radar sensing are disclosed. A method for operating an IC device involves setting a configuration of the IC device to select from available options of low-band and high-band operational modes, transmitting and receiving RF signals at a low-band frequency when the configuration of the IC device is set to the low-band operational mode, and transmitting and receiving RF signals at a high-band frequency when the configuration of the IC device is set to the high-band operational mode, wherein transmitting RF signals at the high-band frequency comprises upconverting a first signal at the low-band frequency to a second signal at the high-band frequency and wherein receiving RF signals at the high-band frequency comprises downconverting a third signal at the high-band frequency to a fourth signal at the low-band frequency, wherein the upconversion and the downconversion are implemented using a conversion signal at a conversion frequency.

Abstract: A security system is provided that integrates a unique set of structural features for concealing self-powered sensor and communication devices in aesthetically neutral, or camouflaged, packages that include energy harvesting systems that provide autonomous electrical power to sensors, data processing and wireless communication components in the portable, self-contained packages. Color-matched, image-matched and/or texture-matched optical layers are formed over energy harvesting components, including photovoltaic energy collecting components. Optical layers are tuned to scatter selectable wavelengths of electromagnetic energy back in an incident direction while allowing remaining wavelengths of electromagnetic energy to pass through the layers to the energy collecting components below.

Abstract: A communication device and method can include one or more processors operatively coupled to memory, a sensor and an output device, where the one or more processors to perform operations of discovering neighboring short range communication enabled devices such as Bluetooth LE devices, creating presence lists from the discovered devices, and transferring biometric and personal data at least to or from the communication device or at least to or from one of the discovered devices. Other embodiments are disclosed.

Abstract: A radio receiver comprises radio frequency (RF) receiver circuitry that receives a radio broadcast signal, an Internet network interface, a display, a memory, processing circuitry, and a client application including instructions for execution by the processing circuitry. The client application is configured to: determine geographic location information of the radio receiver; determine radio broadcasts that are available to the radio receiver using the geographical location information; select metadata, from metadata stored in the memory, that is associated with the radio broadcasts available to the radio receiver; and present information included in the selected metadata using the display according to the received radio broadcast signal.

Abstract: An antenna integrated amplifier includes a board configured to include an antenna, a radiator that faces the board, a first supporter interposed between the board and the radiator to support the board with respect to the radiator, and configured to include an amplifier to amplify a signal communicated by the antenna, a first bump interposed between the board and the first supporter to be electrically coupled to the antenna and the amplifier, a second supporter interposed between the board and the radiator to support the board with respect to the radiator, and a second bump interposed between the board and the second supporter.

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. The speaker projects the sound into certain areas of the environment, so that it appears that the sound is coming from a place other than the actual speaker itself. A holographic projector connected to the processor projects a 3D holographic image onto the place from which the sound appears to originate, rather than on the actual speaker itself.

Abstract: A portable device case can be engage various removably attachable accessories. The case is sized and shaped to at least partially enclose the mobile device and includes an opening sized and shaped to receive at least a portion of a casing of an accessory, a top flange sized and shaped to removably engage with a top flange of the casing of the accessory, and a bottom flange sized and shaped to removably engage with a bottom flange of the casing of the accessory. Various accessories and removable attachments can be used with the case.

Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.

Abstract: A method including, at each node in each pair of nodes in a network: transmitting an outbound synchronization signal; generating a self-receive signal based on the outbound synchronization signal; detecting the self-receive signal at a self-receive TOA; detecting an inbound synchronization signal; based on the pair of self-receive TOAs and the pair of synchronization TOAs, for each pair of nodes in the network: calculating a pairwise time offset and distance; for each node in the network: based on the set of pairwise distances, calculating a location and a time bias of the node. The method also includes: at each node in the network, detecting a localization signal, transmitted by a device, at a localization TOA; and calculating a location of the device based on, for each node in the network, the localization signal detected at the node, and the time bias and the relative location of the node.

Abstract: Systems, methods, and computer-readable media are disclosed for ring-shaped devices with combined Bluetooth and NFC antenna assemblies. In one embodiment, an example device may include an inner shell, an outer shell coupled to the inner shell, where the outer shell and inner shell together form a first side portion, a second side portion, and a lower portion of the ring-shaped device, a battery, and an antenna assembly that forms an upper portion of the ring-shaped device. The antenna assembly may include a metal substrate, a ferrite layer disposed on the metal substrate, and a metallic loop structure disposed on the ferrite layer.

Abstract: An RF receiver includes a low-noise amplifier (LNA) to receive and amplify RF signals, a transformer-based IQ generator circuit, one or more load resisters, one or more mixer circuit, and a downconverter. The transformer-based IQ generator is to generate a differential in-phase local oscillator (LOI) signal and a differential quadrature (LOQ) signal based on a local oscillator (LO) signal received from an LO. The load resisters are coupled to an output of the transformer-based IQ generator. Each of the load resisters is to couple one of the differential LOI and LOQ signals to a predetermined bias voltage. The mixers are coupled to the LNA and the transformer-based IQ generator to receive and mix the RF signals amplified by the LNA with the differential LOI and LOQ signals to generate an in-phase RF (RFI) signal and a quadrature RF (RFQ) signal. The downconverter is to down convert the RFI signal and the RFQ signal into IF signals.

Abstract: The present application provides a vacuum screen protector attaching machine, wherein the vacuum screen protector attaching machine comprises: a base, an air pump, a screen protector attaching section and an air tube; wherein the screen protector attaching section comprises a screen protector attaching cavity and an upper cover, and the upper cover comprises an airbag; the airbag communicates with one end of the air tube, the one end of the air tube is disposed at a center position of the airbag, the other end of the air tube communicates with an air outlet of the air pump, and the air pump is disposed at the interior of the base; the screen protector attaching cavity is further provided with an air hole, and the air hole communicates with an air inlet of the air pump.

Abstract: A device for holding and charging an electronic cigarette element is disclosed. The device includes a protective case element configured for coupling to a mobile computing device, the case element including a rechargeable battery, a first power port in the case element, the first power port conductively coupled to the rechargeable battery and configured for accepting external power for recharging the rechargeable battery, a cavity in the case element, wherein the cavity is configured to accept an electronic cigarette element, and a charging terminal located in the cavity such that when the electronic cigarette element is inserted into the cavity, one end of the electronic cigarette element contacts the charging terminal, and wherein the charging terminal is conductively coupled to the rechargeable battery, wherein when the electronic cigarette element contacts the charging terminal, the rechargeable battery recharges a battery of the electronic cigarette element.

Abstract: Radio frequency (RF) communication systems with coexistence management are provided herein. In certain embodiments, a mobile device includes a first antenna, a first front end system that receives an RF receive signal from the first antenna, a first transceiver coupled to the first front end system, a second antenna, a second front end system that provides an RF transmit signal to the second antenna, and a second transceiver coupled to the second front end system. The second front end system observes the RF transmit signal to generate an RF observation signal, which is downconverted and processed by the second transceiver to generate digital observation data that is provided to the first transceiver. The first transceiver downconverts the RF receive signal to baseband, and compensates the baseband receive signal for an amount of RF signal leakage indicated by the digital observation data.

Abstract: Improved management of feature based user input routing in a multi-processor architecture is provided. A portable communication device comprises a primary processor controlling a primary operating system, a secondary processor controlling a secondary operating system, and a user interface input control operatively coupled to the primary processor. The user interface input control is configured to enable a radio function and a secondary user input extension associated therewith. The primary processor selectively determines processing of a radio function by one of the primary and secondary processors based on activation of the user interface input control in conjunction with the user input interface extension.

Abstract: Provided are a circuit and method for adjusting the frequency band of an antenna, and an electronic device. The circuit includes: an antenna signal main feed-point connected to a radio frequency link; an antenna signal ground feed-point connected to a ground terminal; and a tuning device. The tuning device is electrically connected to the antenna signal main feed-point and/or the antenna signal ground feed-point, and is configured to adjust a resonance of a frequency in a radio frequency signal. The tuning device comprises a switch group and a tuning element.

Abstract: Circuits comprising: a plurality of LNTA branches, each comprising: a cascode common-source (CCS) LNTA, a plurality of passive mixers (PMs), and a plurality of baseband two-stage Miller compensated TIAs (BB2S-TIAs); a plurality of mixer-first branches, each comprising: a plurality of RF switches, a plurality of baseband folded-cascode TIAs (BBFC-TIAs), and a plurality of Cherry-Hooper amplifiers, wherein an input to each of the BBFC-TIAs is provided by an output of at least one of the RF switches, and an input to each of the amplifiers is provided by an output of a corresponding one of the BBFC-TIAs; a first plurality of clock modulators that provide first non-overlapping modulated clocks that are provided to an input of the PMs; and a second plurality of clock modulators that provide a plurality of tri-level modulated mixer clocks that control the switching of the RF switches.