Embodiments of this disclosure relate to battery packs and/or holsters and, more particular, to an external battery pack and/or holster for mobile electronic devices.

The present subject matter discloses a portable electronic device having multiple functional units for providing distinct functionalities to the portable electronic device. The portable electronic device also has a connection port unit having a plurality of connection ports and coupled to the plurality of functional units. A main controller unit connected to the functional units and the connection port unit. The main controller unit is configured to receive status signals from the functional units based on which it compiles a device status signal. A wireless communication unit is coupled to the main controller unit for facilitating wireless communication with a separate electronic device.

An accessory apparatus and an information displaying method are provided. The apparatus may include, a housing having a first and second side, a coupling member that detachably couples the housing to an external electronic device, a first conductive pattern, positioned between the first side and the second side, to receive a first RF signal from the external electronic device through a second side, a second conductive pattern, positioned between the first and second side and electrically separated from the first conductive pattern, to receive the first RF signal through the second side, a wireless communication circuit to receive the first RF signal through the first conductive pattern, a power management circuit, connected with the second conductive pattern, to extract power from the first RF signal to generate a second RF signal, and a display element, connected with the wireless communication circuit, supplied with power contained in the second RF signal.

A mobile terminal and a mobile terminal audio signal processing system including the same are disclosed. The mobile terminal includes a first body including an opening, a main circuit board, and a main earphone jack, a first audio signal processing body including a first circuit board, on which a sub-sound module receiving a digital audio signal from the first body and converting the digital audio signal into an analog audio signal is mounted, and a sub-earphone jack outputting the analog audio signal, and a controller outputting a first audio signal to the sub-earphone jack and outputting a second audio signal to the main earphone jack. The first audio signal processing body is a first state where the first audio signal processing body is coupled with the opening, or a second state where the first audio signal processing body is separated from the first body.

Embodiments of the present invention provide various communication techniques for communication between a mobile computing device and an accessory. An accessory protocol that is generic to the mobile computing device can be used for some communication. An application executing at the mobile computing device can communicate with the accessory using an application communication protocol. In some embodiments, the application communication protocol can be different from the accessory communication protocol. In other embodiments the application protocol may only be recognized by the application and the accessory. In some embodiments, messages conforming to an application protocol can be communicated between the application and the accessory by packaging the messages inside a message conforming to the accessory communication protocol.

Disclosed is a device that attaches to a smart phone to provide a portable fan and text display. Using either an iOS or OTG (Android) connection, fan blades are powered by the smart phone connection, providing a cooling breeze that can directed toward an individual. In addition, LEDs are mounted on one of the fan blades and are synchronized to illuminate during fan blade rotation to provide persistence of vision, wherein text images are readable by the human eye. Text messages can be preprogrammed or, in an alternative embodiment, entered directly from the smart phone.

An apparatus to control an external device includes a connector to electrically connect with the external device, a connection detector to determine whether the external device is electrically connected to the connector, and a controller to obtain level information corresponding to the external device from the connector, to determine a type of the external device based on the level information, and to control execution of a function of the apparatus based on the determined type, wherein the level information is different according to the type of the external device.

An electronic paper display unit includes a protective case, which is made of a transparent material, a display, which is installed in the protective case, is powered to display desired image information, and includes a plurality of divided regions, and a control module, which is electrically connected with the display, and includes a first mode transmitting a divided mode signal such that many pieces of image information are independently displayed on the respective divided regions and a second mode transmitting an integrated mode signal such that one piece of image information is displayed throughout the overall divided regions. Further, a mobile communication terminal can visually display various pieces of image information thereon according to selection of a user.

Particular embodiments described herein provide for an electronic device, such as a tablet, that includes a circuit board coupled to a plurality of electronic components (which includes any type of components, elements, circuitry, etc.). One particular example implementation of the electronic device may include a first housing and a second housing removably coupled to the first housing, where the second housing is configured to function as a stand for the first housing. The stand configuration can allow for user desired viewing of a first display located on the first housing and of a second display located on the second housing. Further, the second housing can be removed from the first housing and replaced with a different second housing.

Various components of an electronic device housing and methods for their assembly are disclosed. The housing can be formed by assembling and connecting two or more different sections together. The sections of the housing may be coupled together using one or more coupling members. The coupling members may be formed using a two-shot molding process in which the first shot forms a structural portion of the coupling members, and the second shot forms cosmetic portions of the coupling members.