A computer implemented education and playbook system, method, and apparatus for providing an interactive, recursive and in situ coaching system. A coach can use a portable electronic device to transmit play information to a number of players via wearable electronic devices, including the claimed helmet apparatus, the play then being filmed and time stamped for subsequent review and storage in a coach's practice plan.

Accessory devices are described herein. An accessory device may include a receptacle for receiving an electronic device. The accessory device may include a case that covers the housing of the electronic device, or a folio that additionally includes a cover can conceal the display of the electronic device. Accessory devices described herein further include wireless circuitry used to communicate with wireless circuitry in the electronic device. The wireless circuitry can be used for various functions and features. For instance, the wireless circuitry in the accessory device can respond to authentication requests from the electronic device, and/or to send authentication requests to the electronic device. Further, the wireless circuitry in the accessory device can send information to the electronic device. Such information may include properties of the accessory device, or information stored on the accessory device that is presented on a display of the electronic device.

A BLUETOOTH communications method includes receiving a BLUETOOTH-headset communication instruction, wherein a quantity of BLUETOOTH headsets currently to be coupled to the terminal is greater than one; displaying, by a terminal, an information for a user to switch a BLUETOOTH headset working mode to a non-exclusive mode when the BLUETOOTH headset working mode is an exclusive mode; and, simultaneously communicating, by the terminal with all the BLUETOOTH headsets.

The present invention discloses an MRI communication device, which is provided with a control room communication module and a scan room communication module. The scan room communication module includes a receiver, delivering the received first audio signals to the first air tube, while the control room communication module comprises a first sound device, through which the first audio signals are amplified and broadcast. The present invention realizes free bidirectional communication for the control room and the scan room, wherein the receiver can transmit the sound messages to the operator in the control room, making it possible for the technician to manage emergencies of making sounds in the scan room; the air tube is used to transmit audio signals, ensuring the proper operation during MRI exams and preventing them from the influence of the audio signal electromagnetic field from voice calls during MRI scans.

A wearable device includes a frame and a magnetic coupler opening formed in the frame. Wearable device further includes a processor, a memory accessible to the processor, and a very high frequency (VHF) radio transceiver for data transmission and reception and connected to the processor. Wearable device further includes a magnetic coupler connected to the VHF radio transceiver. Magnetic coupler includes a diamagnetic material shaped to form a VHF transmission or reception terminal that partially or fully aligns with the magnetic coupler opening. During transmission, magnetic coupler is configured to radiate transmitted VHF band radio modulated signals into tissue of the user. During reception, magnetic coupler is configured to absorb received VHF band radio modulated signals from the tissue of the user.

An article of headgear to be worn on the head of a user includes a first portion to encompass at least a portion of the head of the user and a visor extending forward from the first portion. The visor includes a laterally extending opening therein to receive a personal communication device including a camera such that a lens of the camera is positioned below the lower surface of the visor.

A foldable virtual reality device is mounted on the section of the main body that includes the display and a side of the main body so that it can rotate, is switched in close-contact state with the front surface and the bottom surface of the main body, includes a screen member and a switching body that includes an ocular plate mounted to the screen member, moves the ocular plate between the close-contact state of the display and the ocular plate and the separation state maintaining a predetermined distance, and can implement virtual reality function by the display when the ocular plate is in separation state.

Eyewear for use by a rider of a bicycle may comprise a wireless personal area network (WPAN) transceiver configured to associate with at least one electronic shifting component of a bicycle and determine a number of front and rear gears of the bicycle. The WPAN transceiver may be configured to receive an indication of a gear change of the bicycle. A processor may be configured to indicate to a user of the eyewear, based on the indication of the gear change of the bicycle, a change in gear position.

An apparatus including a multi-sensor array having a bone conduction microphone, air conduction microphone, signal processor, and speakers; a signal processor that processes vibration signal data and tonal signal data to produce combined data representative of the vocal communication to substantially reduce or eliminate noise; and a method of applying a signals optimized combination algorithm to optimize the output by intelligently combining the outputs from the two different types of sensors for both working in a noisy environment and quiet environment.

Portable electronic accessories and removable control packages are disclosed. A portable electronic accessory includes a battery configured to provide battery power, a control socket configured to receive a removable control package, and power circuitry configured to deliver at least a portion of the battery power to the removable control package to power the removable control package. The removable control package is configured to control operation of the portable electronic accessory. A removable control package includes input/output (I/O) pins, and one or more communication radio circuits. The I/O pins are configured to interface with pins of the control socket, electrically connect to the pins of the control socket when the removable control package is received into the control socket, and receive battery power from the battery of the portable electronic accessory. The one or more communication radio circuits are configured to provide wireless communication capabilities to the portable electronic accessory.