An electronic apparatus includes a communication interface configured to selectively receive a first signal having a first carrier frequency transmitted for a first period by a first transmitter, and a second signal having a second carrier frequency different from the first carrier frequency and transmitted for a second period not continuous with the first period by a second transmitter different from the first transmitter, and a control circuit configured to cause the communication interface to execute the first signal for a third period including the first period and to, when the communication interface does not receive the first signal during the third period, cause the communication interface to execute reception processing of the second signal for a fourth period including the second period and being not continuous with the third period.

Systems and methods for improving communication reliability of a radio frequency system that includes an antenna integrated circuit, which includes an antenna amplifier unit that outputs a first analog electrical signal that indicates data, a transceiver integrated circuit implemented using a first semiconductor manufacturing technique, in which the transceiver integrated circuit includes a transceiver amplifier unit that outputs a second analog electrical signal that indicates the data, and a driver integrated circuit implemented using a second semiconductor manufacturing technique. The driver integrated circuit includes an intermediate amplifier, which outputs a third analog electrical signal that indicates the data, and intermediate routing circuitry, which routes the first analog electrical signal to the intermediate amplifier and the third analog electrical signal to the transceiver integrated circuit during reception and routes the second analog electrical signal to the intermediate amplifier and the third analog electrical to the antenna integrated circuit during transmission.

The subject matter of this specification can be embodied in, among other things, a mobile accessory device includes a housing, a user input apparatus configured to activate in response to input by a user and including (a) a trigger component movable relative to the housing and comprising a feature configured to facilitate movement of the trigger component relative to the housing, the feature comprising at least one of a slot, a void, or a recess, and, (b) a sound detection circuit configured to activate in response to one or more predetermined sounds, or (c) both, and a first communication circuit configured to activate and communicate with a second communication circuit in response to activation of the user input apparatus.

A smart clothing system includes an item of clothing wearable by a person, the item having a conductive fiber disposed therein, the conducive fiber being capable of conducting electrical energy, a rechargeable power supply physically coupled to the item and electrically coupled to the conductive fiber, at least one component physically coupled to the item of clothing and electrically coupled to the conductive fiber, a wireless communication system physically coupled to the item of clothing and electrically coupled to the conductive fiber, the wireless communication system configured to communicate with the at least one component and an external data communications network, and a remote camera disposed remotely from the person and coupled to a remote item, the remote camera being configured to capture at least one of video and audio data, and wirelessly communicate with at least one of the external data communications network and the at least one component via the wireless communication system.

A communication interference rejection system comprising a receiver operatively connected to a device connected to a body of a user. The receiver is configured to receive a signal transmitted through the body of the user, the signal comprising a data component and an interference component, the interference component due to human body antenna effect. The receiver is configured to integrate the signal using a relatively low-gain analog integrator and then digitally differentiate the output of said integration.

Systems and methods for operating a communication device. The methods comprise: concealing the communication device and/or at least one cable in a ballistic wearable item (e.g., a ballistic vest) such that the communication device resides in a storage slot for a trauma plate, where the communication device comprises a frame having a cross-sectional profile that matches a cross-sectional profile of the trauma plate by a given amount (e.g., 75-100%); and performing communication operations by a radio module integrated with the frame of the communication device.

A support system which allows for the use and mounting of a smart phone, or similar electronic device, in a variety of ways. The support system may be adapted to function as a hand grip while supporting the smart phone during image acquisition, or while watching images on the smart phone. In another configuration, the support system may be adapted to attach to the user's belt. In another configuration, the support system may function as a support stand. In another configuration, the support system may be mounted on a tripod. The support system may include a kit of parts which allow for the modification of support accessories to allow for different configurations. The support system may include a removable shutter which may actuate the camera functions via wireless communication.

A wearable device worn on a body of a user is provided. The wearable device includes a sensing unit configured to sense state information of the user, a touch input unit configured to receive a touch input from the user, a controller configured to select at least one of a plurality of strings based on the state information when the touch input is received, a display configured to display the selected at least one string, and a communicator configured to transmit a message including the at least one string to a receiver device.

A communication apparatus of the present disclosure includes: an antenna unit including a human body electrode and a spatial electrode; a communication circuit unit that performs communication using at least a human body as a communication medium via the antenna unit; and a shielding structure that has an opening into which a portion of the human body or a communication conductor electrically conducted to the human body is insertable, and contains at least a portion of the antenna unit of the communication circuit unit and the antenna unit.

Systems and methods using a network of wearable devices to support secure payment for a user are described. The network of wearable devices may include a wearable secure unit including a first short-range transceiver, a wearable sensory unit including a second short-range transceiver, and a wearable communication unit including a third short-range transceiver and a long-range transceiver. The systems and methods may include receiving a transaction request from a merchant device. Thereafter, the systems and methods may obtain information from the wearable secure unit configured to provide an environment in which processes and data are securely stored and executed. The systems and methods may also obtain information from the wearable sensory unit configured to capture and compare biometrics of the user with a stored profile. Based on the obtained information, the systems and methods may instruct the wearable communication unit to transmit to the merchant device user authentication data.