Disclosed are devices, systems, methods, and media for efficient emergency calling using digital devices. In some embodiments, a user is able to make an emergency call by a one-touch or dual-touch process. An authentication process may reduce inadvertent and unauthorized emergency calling. Persistent emergency buttons are also disclosed that may be used for calling emergency in different states of the device.

An input device includes an input structure, a magnet attached to the input structure, and an electromagnet. The magnet rotates when the electromagnet is activated, thereby rotating the input structure. The magnet and input structure rotate about a pivot in order to provide haptic and/or visual feedback to a user. The pivot may attach the magnet and input structure to a body, which in turn may be affixed to, or part of, an electronic device. The electromagnet can encircle the body and/or magnet.

An example electronic device includes a bracket, a first display including a first display panel and a first window glass disposed to cover the first display panel and having a first edge area, at least a portion of the first edge area being connected to a third edge area of the bracket, and a second display including a second display panel and a second window glass disposed to cover the second display panel and having a second edge area, at least a portion of the second edge area being connected to the third edge area of the bracket. The third edge area of the bracket includes a protruding portion that protrudes a specified distance from a lateral side of the electronic device, and the protruding portion has a thickness smaller than or equal to a specified value.

Systems and methods for controlling access to a mobile device. A method for unlocking a mobile device includes detecting a user input comprising two or more user actions performed at one or more physical input buttons of the mobile device when the mobile device is in a lock state. The lock state prevents use of at least one functionality of the mobile device. Each user action corresponds to a code. The method also includes determining whether the detected user input is valid, and changing a state of the mobile device from the lock state to an unlock state to enable the use of the at least one functionality of the mobile device if the detected user input is valid.

In one aspect, an apparatus includes a housing, a haptic element on at least a portion of the housing that has a non-discrete configuration and at least a first discrete configuration, a processor, a touch-enabled display operatively coupled to the processor, and a memory accessible to the processor. The memory bears instructions executable by the processor to initiate a function at the apparatus, and at least in part in response to initiation of the function, actuate a portion of the haptic element.

A protective case for an electronic device includes a main housing and a lid. The main housing and lid are removably joined to define an air and water tight volume receiving an electronic device. The electronic device includes a switch. The main housing includes a slot formed therein proximate the switch of the electronic device. The main housing includes a pair of separated raised walls formed thereon about the slot. A toggle is rotatively positioned within the slot and between the raised walls.

Systems and methods for controlling access to a mobile device. A method for unlocking a mobile device includes detecting a user input comprising two or more user actions performed at one or more physical input buttons of the mobile device when the mobile device is in a lock state. The lock state prevents use of at least one functionality of the mobile device. Each user action corresponds to a code. The method also includes determining whether the detected user input is valid, and changing a state of the mobile device from the lock state to an unlock state to enable the use of the at least one functionality of the mobile device if the detected user input is valid.

A mobile terminal including a terminal body; an ultrasonic sensing unit mounted on at least one side surface of the terminal body and configured to generate an ultrasonic wave on a path propagating along the at least one side surface of the terminal body; and a detecting circuit configured to detect a touch applied to the terminal body by using a signal change caused due to a touch on the path of the ultrasonic wave.

There is disclosed a mobile terminal including: a display; a middle frame including a supporting portion and a side portion provided around the supporting portion to define a lateral external appearance; a main board including a ground; a first wireless communication unit configured to transceive a first signal; a second wireless communication unit configured to transceive a second signal; and a rear case configured to cover a rear surface of the main board, wherein the side portion includes a plurality of conductive members of which ends are divided into slits, and the plurality of the conductive members includes a common antenna electrically connectable with the first wireless communication unit and the second wireless communication unit and configured to receive the first signal and the second signal; and an independent antenna electrically connectable with the first wireless communication unit and configured to receive the first signal.

Embodiments of the present disclosure provide a hand holding state detection method, a capacitive touch apparatus and an electronic device. The method includes: acquiring feature data output by each coupling capacitor in a capacitor array network when the coupling capacitor is touched, and reference feature data corresponding to each coupling capacitor; and determining a feature region formed by touch on the capacitor array according to the feature data output by each coupling capacitor and the corresponding reference feature data, to determine a hand holding state according to the feature region. In this way, a man-machine interaction interface may be adjusted according to the hand holding state, such that a user may conveniently or accurately touch all the virtual keys in the man-machine interaction interface.