Abstract: A portable electronic device including a first body, a second body, and a hinge mechanism is provided. The second body is connected to the first body through the hinge mechanism, and the hinge mechanism has a basis axis located at the first body and a rotation axis located at a lower end of the second body. When the second body rotates with respect to the first body, the rotation axis slides along an arc shaped path with respect to the basis axis to increase or decrease a distance between the rotation axis and the basis axis and increase or decrease a distance between the lower end of the second body and a back end of the first body.

Abstract: Technology is disclosed herein for operating an application service of a wireless network. In an implementation, the application service receives a request for a user experience flow from a client application of the wireless network that is executing on a user device. The application service receives data associated with the user device with respect to the wireless network. Elements of the data relate to device data and subscription data. The application service processes the data according to an ordered set of conditions until a satisfied condition is identified and determines a user experience flow according to the satisfied condition. The user experience flow includes webpage content associated with the satisfied condition. The application service sends the user experience to the client application.

Abstract: Technology is disclosed herein for registering a user device with a service. In an implementation, a service receives a request from a user device to begin a registration process. The request includes registration data and the public key of an asymmetric key pair. The service stores the public key in association with a session identifier and sends the session identifier to the user device. The service receives a later request from the user device to continue the registration process. The later request includes the session identifier and a digital signature created using the private key of the key pair. The service authenticates the digital signature based on the public key which is retrieved based on the session identifier. In response to authenticating the digital signature, the service sends the registration data associated with the request to the user device and registers the user device based on the registration data.

Abstract: A system and a method for matching mobile device users are provided. The system includes a match server and a mobile device used by a mobile device user. The match server defines a plurality of living community regions, living community reference points, primary interest classes and detail interest classes, receives position coordinates from the mobile device, and defines a living community range of the mobile device user and infers the point of interest (POI) of the mobile device user based on the received position coordinates. Moreover, the match server generates a match list based on the living community ranges, the POIs and the personal profiles of the mobile device user and the other mobile device users, and transmits the match list to the mobile device. Accordingly, the system can effectively match the mobile device users having similar behavior patterns.