A communication signal transform device and a communication signal transform method are provided. The communication signal transform method includes: disposing the mobile device detachably in a case having an exposed portion, and exposing a display of the mobile device from the case through the exposed portion; and generating an output signal supported by the mobile device in response to a signal received from an external telephone line, and transmitting the output signal to the mobile device.

A mobile terminal and controlling method thereof are disclosed, by which a region desired to be shared with a watch type terminal can be guided. The present invention includes a touchscreen configured to output information, a wireless communication unit configured to communicate with a watch type terminal having a display, and a controller configured to control a display of an object on the touchscreen, in response to receiving a touch input at the touchscreen, transmitting, to the watch type terminal, control information, outputted at the displayed object or a request for the watch type terminal to transmit data corresponding to the information.

Disclosed herein is a multifunction core for use with a wide variety of belt connectors, operating systems, mobile devices, and replaceable cases. The features of the multifunction core are controlled by a dedicated application program installed in the mobile device.

A mobile phone case comprising an external cover to cover a mobile phone, a control module coupled to the external cover and a wireless intercom module coupled to the control module to provide wireless communications independent of a state of the mobile phone.

Various embodiments of the present disclosure provide an accessory device of a portable electronic device. The accessory device includes a first cover that is detachably attached to at least a portion of the electronic device, a second cover that is connected to the first cover, at least a portion of the second cover covering at least a portion of a display of the electronic device, and an electronic circuit that is arranged inside the first cover or the second cover. The electronic circuit may include a memory that stores at least some of codes or data that indicate one or more of identification information, a characteristic, a configuration, a structure, and a function that are associated with a protection cover. Various pieces of corresponding information may be output according to the kinds of applied accessories. Therefore, the consumers' product preference can be improved and the reliability of the electronic device can be secured.

Accurate and reliable techniques for determining information of an accessory device in relation to an electronic device are described.

A portable terminal provided with a cover is provided. The portable terminal includes a main body including an input/output unit; a cover attachable to and detachable from the main body, and provided with an output unit; a first sensor that detects folding/unfolding of the cover; and a controller that controls an output of the input/output unit or the output unit according to a detection signal of the first sensor.

A case for an electronic device includes a shell and at least three electrical connectors. The shell receives the electronic device and covers at least a portion of the electronic device. A first electrical connector is on an interior of the shell and electrically connects the case to an electrical interface of the electronic device when the electronic device is installed in the case. A second electrical connector is on an exterior of the shell and electrically connects a first external electrical device to the electronic device through the electrical interface of the electronic device. A third electrical connector is on the exterior of the shell and electrically connects a second external electrical device to the electronic device.

An improved case for use with a computing device provides at least one sensor, preferably for use with a processor of the computing device. For many embodiments, the computing device has a storage configuration with the computing device located below an upper surface of the case and a lifted configuration with the computing device supported at an angle alpha with a portion extending above the upper surface of the case.

The shell for a mobile device comprises one or more functional modules attached to the shell and a connector, the functional module being capable of being electrically connected to the mobile device via the connector and a first interface of the mobile device, for providing a corresponding function for the mobile device. Such a shell can not only provide protection function for the mobile device but also can enhance the performance of the mobile device, enrich the function of the mobile device and promote the user's experience in using the mobile device.