Abstract: An apparatus is disclosed including a tunable passive phase shifter. In example implementations, a phase shifter reuses one or more inductors for multiple bands and can reduce switch use along a propagation path to lower insertion loss. In an example aspect, an apparatus for phase shifting includes a phase shifter having a first port and a second port. The phase shifter includes an inductive path, which is coupled between the first and second ports, and first and second bypass paths. The inductive path includes multiple inductors and multiple nodes. The multiple inductors are coupled together in series between the first and second ports. The multiple nodes are interleaved with the multiple inductors along the inductive path. The first bypass path is coupled to a first pair of nodes of the multiple nodes, and the second bypass path is coupled to a second pair of nodes of the multiple nodes.

Abstract: A portable electronic device comprises a main body and an antenna. The main body comprises a first casing, a second casing and a hinge, with the hinge connecting the first casing and the second casing so as to allow the first casing to be flipped relatively to the second casing. The antenna comprises a radiation structure and an excitation circuit. The radiation structure comprises a first metal layer and a second metal layer, with the first metal layer disposed at the first casing, the second metal layer disposed at the second casing, and a slot formed between the first metal layer and the second metal layer. The excitation circuit is disposed in the first casing, and comprising an electromagnetic wave emitting portion configured to emit an electromagnetic wave towards the slot.

Abstract: An electronic device and a method of grip recognition of the electronic device are provided. The electronic device includes an antenna, a radio communication device having a coupler, a memory, and a processor which is electrically connected to the radio communication device and the memory, wherein the memory includes instructions, executable by the processor, wherein the processor is configured to detect a first signal being transmitted and a second signal being received through the antenna using the coupler, calculate a reflection coefficient of the antenna based on the first signal and the second signal, determine a signal magnitude and a phase corresponding to the reflection coefficient, and determine whether the electronic device is being gripped based on the signal magnitude and the phase.

Abstract: A method, device, system, and media are directed to controlling a multi-tuner radio. A voice command may be received and/or filtered. An operation of the radio may be modified based on the voice command. A gesture input may be received through a gesture pad. Another operation of the multi-tuner radio may be modified based on the received gesture input. A fingerprint may be recognized with a gesture pad. A user may be authenticated based on the recognized fingerprint. The operation or the other operation may be personalized based on the fingerprint. User training may be provided for the gesture input.

Abstract: A technique for locating devices detects wireless packets using multiple antenna units and generates antenna coordinates in an antenna coordinate system on a per-packet basis. Information about antenna coordinates are stored in entries of a data store. Packets originating from different locations produce different antenna coordinates, enabling antenna coordinates to differentiate regions in physical space. Although antenna coordinates do not directly describe physical locations, they are stable over time given a stable environment and thus allow determination as to whether a location has been visited before. Entries in the data store may store Cartesian (physical) coordinates associated with respective antenna coordinates, enabling real-time tracking of physical device locations by lookups into the data store based on antenna coordinates.

Abstract: Front-end architectures for multiple antennas. In some embodiments, a front-end architecture for wireless application can include a first mid-band amplifier system configured to amplify transmit and receive signals in a first mid-band. The front-end architecture can further include a second mid-band amplifier system configured to amplify at least a transmit signal in a second mid-band, such that the front-end architecture is capable of simultaneous uplink operations in the first mid-band and the second mid-band.

Abstract: A mobile terminal is provided including a display unit; a middle frame including a supporting unit that supports a rear surface of the display unit with a side portion around the supporting portion; a main board at a rear surface of the middle frame including a ground; a first wireless communication unit in the main board to transceive a first signal; a second wireless communication unit in the main board to transceive a second signal; and a rear case covering a rear surface of the main board, where the side portion includes a plurality of conductive members with ends divided into slits and the plurality of the conductive members includes a common antenna electrically connectable with the first and second wireless communication units to receive the first and second signals such that the mobile terminal receives different signals with antennas for LTE and 5G communication arranged in a limited space.

Abstract: A vehicle having an apparatus for a mobile base station transceiver of a mobile communication system, wherein the mobile communication system further has at least one fixed base station transceiver and at least one further mobile base station transceiver and includes a transceiver module for communication with at least one fixed base station transceiver in the coverage area of the at least one fixed base station transceiver, wherein the transceiver module provides a mobile coverage area for the at least one further mobile base station transceiver, the mobile coverage area projecting beyond the coverage area of the at least one fixed base station transceiver at least to some extent by an extended coverage area.

Abstract: Detuning and isolation techniques for a multiband tunable matching network used in multi-transceiver RF systems. Embodiments include an amplifier and a multiband tunable matching network (MN) coupled to the amplifier. The multiband tunable MN is configured to detune to an isolation OFF state from an ON state, wherein the match tuning in the isolation OFF state is different than match tuning in the ON state. In an example detuning, the match tuning in the isolation OFF state is in a different frequency band than a frequency band of match tuning in the ON state and is selected based on the frequency band of match tuning in the ON state.

Abstract: A method and apparatus are provided for calibrating a wireless access point comprising an array of multiple (m) antennas denoted Ai (i=1 . . . m), each antenna having a respective internal phase offset ?i. The method comprises receiving a signal from at least one transmitter located at a substantially known bearing from the wireless access point. The method further comprises determining an estimated value for each internal phase offseti such that an angle of arrival (AoA) spectrum calculated for the received signal on the basis of said estimated values matches the known bearing, wherein said AoA spectrum is calculated by treating said multiple antennas as a phased array. A method and an apparatus are also provided for calibrating a wireless access point comprising first and second arrays of multiple antennas, each antenna array having a respective radio unit, and each antenna in an array having a respective internal phase offseti.

Abstract: The present invention is directed to a system, method and apparatus for augmented viewing of real world objects. The invention is thus generally directed to the field of electronic devices, more specifically, electronic devices which project electronic virtual reality displays including, but not limited to, three dimensional holographic images. The invention deploys a cellular phone equipped with a camera and an external framework surrounding the phone. The external framework supports a projector camera projecting a three dimensional holographic image. By such design, either the cellular phone camera or the projection camera can obtain image of an external object and its coordinates in space, then project three dimensional holographic image upon the real world object for artistic, educational and/or marketing purposes.

Abstract: A mobile device includes a Bluetooth transceiver, the Bluetooth transceiver being in an idle power state when not securely paired to a second Bluetooth transceiver of a peripheral device. The mobile device further includes an audio interface, the audio interface coupled to the Bluetooth transceiver, the audio interface configured to connect to a second audio interface of the peripheral device.

Abstract: A method is described of using the mobile device so as to control the drain of power from the power source of the mobile device, the mobile device having at least two location determination techniques having respective power drain characteristics, the method includes selecting the location determination technique having a lower power drain characteristic the greater the determined distance of the mobile device from a predetermined location or area, and selecting the location determination technique having the greater power drain characteristic the smaller the determined distance of the mobile device from a predetermined location or area. The method thus uses the least accurate technique when furthest away and the most accurate technique when closer to a predetermined location or area.

Abstract: A wireless connectivity arrangement for an infotainment system of a motor vehicle includes a user profile manager storing associations between users of the motor vehicle and respective personal electronic devices. A wireless connection manager is communicatively coupled to the user profile manager. The wireless connection manager detects that a personal electronic device is in a vicinity of the vehicle, and refers to the user profile manager to determine whether the personal electronic device is a primary personal electronic device of a current user of the vehicle.

Abstract: An apparatus include a package, a chip and a plurality of bumps. The package may include (i) a plurality of bonding pads configured to exchange a plurality of radio-frequency signals with an antenna panel and (ii) a plurality of transmission lines configured to exchange the radio-frequency signals with the bonding pads. Two of the transmission lines may be connected to each of the bonding pads. The chip may be disposed in the package and may include (i) a plurality of transceiver channels configured to exchange the radio-frequency signals with the transmission lines and (ii) a plurality of switches configured to switch the radio-frequency signals to a signal ground. The bumps may be configured to exchange the radio-frequency signals between the transmission lines of the package and the transceiver channels of the chip. The transmission lines, the bumps and the switches may form a plurality of transmit/receive switches.

Abstract: The present invention comprises a protective case for a portable electronic device adapted with a storage compartment which houses a tethered stylus. The tethered stylus can be retractable. The stylus is attached to the protective case by way of a permanent tether and the storage compartment is integrally attached at one end of the protective case.

Abstract: An autonomous watercraft with a waterproof container that houses a satellite communication terminal. The waterproof container includes a first shell mounted on a deck of the watercraft and that has a sealed first interior space that contains satellite communication circuitry of the terminal. The waterproof container also includes a second shell mounted under the deck of the watercraft and that has a sealed second interior space that contains the processing circuitry of the terminal. The first and second shells include ports configured to receive connectors for communication signaling and/or power. The first shell can also include a pressure port to pressurize the first interior space for use in leak detection. The shells can also include heat sinks to cool the satellite communication terminal.

Abstract: A signaling system comprises a user device, and a personal computing device separate from the user device and configured to inform a user about the user device based on information received by the personal computing device from a remote server. In accordance with the present invention, the user device has an indicator to alert the user to use the personal computing device to get information relating to the user device.

Abstract: Embodiments of wireless audio systems and methods for wirelessly communicating audio information are disclosed herein. In one example, a wireless audio system includes a first and a second wireless headphones and a charging case. The first wireless headphone is configured to establish, with an audio source, a first short-range wireless connection and transmit communication parameters associated with the first short-range wireless connection to the charging case. The charging case is configured to receive the communication parameters associated with the first short-range wireless connection and transmit the communication parameters associated with the first short-range wireless connection to the second wireless headphone.

Abstract: A system is disclosed comprising a near field communication tag that is transformable from a first state to a second state. The system also comprises a server program stored on a non-transitory storage medium that, when executed by a server apparatus, receives a first tag report from a user device in response to the tag being tapped while being in the first state, sends a first response to the user device or to another user device in response to the first tag report being received, receives a second tag report from the user device in response to the tag being tapped while being in the second state, and sends a second response to the user device or to another user device in response to the second tag report being received.