A phone holder includes a pocket having a rear wall and a front wall and configured to receive a phone; an elongate neck extending from an upper portion of the rear wall of the pocket and foldable relative to the rear wall of the pocket; and at least one magnet located on or in the neck. The neck is foldable so that a rear surface of the neck faces an opposite surface of the rear wall to enable the neck to overlie a waist band of clothing of the user or a belt or the like with the magnet being magnetically coupled by magnetic attraction to the phone at a location adjacent the phone to support the phone holder.

A battery in a mobile phone cover may be selectively charged according to a user-selectable parameter. When charged, the battery in the mobile phone cover may be used to charge a battery in a mobile phone.

A system includes an accessory for a mobile computing device, the accessory including a body defining an interior configured to secure a mobile computing device, a communications module configured to receive an electronic command to eject a projectile, and a projectile launcher, coupled to the body, configured to eject a projectile in response to the command. The system also includes a projectile disposed in the projectile launcher.

A mobile terminal and method for controlling the same, and a display device and method for controlling the same are disclosed. The present invention provides a mobile terminal including a sensing unit, a wireless communication unit for communicating with a display device, a display unit, and a control unit, wherein when detecting that the mobile terminal satisfies a first location condition of a display unit of the display device, the control unit receives, from the display device, a signal corresponding to a first content executed in the display device. Moreover, the invention provides a display device including a sensing unit, a wireless communication unit for communicating with a mobile terminal, a display unit, and a control unit, wherein when the control unit detects that the mobile terminal satisfies a first location condition while running a first content, the control unit transmits information corresponding to the running first content to the mobile terminal.

A wireless communication system comprising a smartphone comprising antenna system, and an add-on device that is configured to be attached to the smartphone, wherein, the add-on device comprises, a wireless communication module configured to transmit and receive RF communication signals, and an antenna coupling system that couples between the wireless communication module and the smartphone's antenna system in order to at least transmit or receive the RF communication signals by the smartphone's antenna system, the antenna coupling system couples the RF communication signals by at least one of or the combination of (a) conduction with the enclosure of the smartphone, and (b) induction between the add-on device and the smartphone.

An electronic device includes: a housing including a first surface facing a first direction; and a second surface facing a second direction opposite to the first direction, wherein an inner space is formed between the first surface and the second surface; a board disposed in the inner space; a geomagnetic sensor disposed on the board; and a processor. The geomagnetic sensor is configured to detect a first magnetic force, when a first cover part of the cover, including a first magnetic member, is disposed to cover the first surface from the first direction of the electronic device, and detect a second magnetic force, when a second cover part of the cover, including a second magnetic member, is disposed to cover the second surface from the second direction of the electronic device in a state where the first cover part is disposed to cover the first surface from the first direction of the electronic device.

A radio frequency (RF) front end device has a signal traveling from a first antenna to a second antenna in an uplink path and a signal traveling from a third antenna to a fourth antenna in a downlink path. The device is under the control of automatic on/off controller (AOOC) which upon receiving a signal indication from a receive signal detector and amplifier (RSDA) turns on the operations of power amplifier (PA) and simultaneously turns off a low noise amplifier (LNA). This LNA is turned off when the power amplifier is turned on to prevent uplink path and downlink path forming a feedback loop which would result in oscillation, noise and interference.

A system may include an electronic device that includes an enclosure having a transparent cover. The electronic device may also include a display positioned below the transparent cover and configured to display a first graphical user interface and a second graphical user interface different from the first graphical user interface, and a touch sensor positioned below the transparent cover and configured to detect touch inputs applied to the transparent cover. The system may also include a protective case that includes a shell defining a cavity and configured to at least partially cover the enclosure of the electronic device when the electronic device is positioned in the cavity, and a near-field wireless communication antenna coupled to the shell and detectable by the electronic device. In response to detecting the near-field wireless communication antenna, the electronic device may be configured to switch from the first graphical user interface to the second graphical user interface.

The invention relates to a method of detecting symptoms of peritonitis, wherein the method comprises the following steps: taking a photo of a drainage solution and/or of a catheter exit site using a smartphone and/or inputting at least one query parameter which is input by a patient through the input zone of a smartphone; and, evaluating the photo and/or the query parameter.

The invention relates to the field of accessories for mobile electronic devices, in particular to multifunctional cases for mobile electronic devices: phones, tablets, etc., and can be used for heating the mobile electronic devices in the cold season. The invention provides an increase in the efficiency of heating by increasing the heating rate and the possibility of smooth control of the heating temperature. A case for a mobile electronic device, the case having a heating and charging function, the case comprising a body, a power source disposed in the body; a microcontroller disposed in the body; a heating element disposed in the body and coupled with the power source and the microcontroller, and at least one means of communication with the mobile electronic device, characterized in that the microcontroller comprises a means for generating pulse-width modulation, wherein the heating element is coupled with the power source via a bridge circuit including two pairs of semiconductor switches, and the microcontroller is coupled with the bridge circuit and the heating element via two control semiconductor switches, each of which is related with one pair of switches of the bridge circuit.