Abstract: A method and device applied in an Android data processing system for performing synchronous control via an external apparatus. A control message from the external apparatus is received via a communication channel connected to the external apparatus. A pre-stored event generation procedure is executed by an Android Shell user privilege to convert the control message from the external apparatus into an event message identifiable by the Android data processing system. The Android data processing system identifies the event message and generates a corresponding control event to perform corresponding operations based on the control event. The external apparatus is used to synchronously control the Android data processing system and variation on the Android data processing system is less.

Abstract: The present invention provides a method, a portable terminal, an in-vehicle terminal and a system for vehicle positioning. The portable terminal is connected to an in-vehicle GPS terminal. The method includes: receiving and processing a vehicle inertial positioning information transmitted from the in-vehicle GPS terminal; obtaining a vehicle coordinate information and a vehicle driving information according to the processed vehicle inertial positioning information; combining the vehicle coordinate information and the vehicle driving information with a navigation map of the portable terminal; and generating a navigation image according to the navigation map, the vehicle coordinate information and the vehicle driving information. The present invention can implement navigation function without purchasing or upgrading vehicle navigation software.

Abstract: An image mirror display method for an Android data processing system is provided. The method includes: executing a pre-stored virtual display screen record procedure by an Android Shell user privilege for obtaining images displayed on a virtual display of the Android data processing system, wherein the images displayed on the virtual display are the same as current images displayed on an internal display of the Android data processing system; processing and storing the images displayed on the virtual display of the Android data processing system; and sending the stored images displayed on the virtual display of the Android data processing system to an external display device via a communication channel, wherein the Android data processing system and the external display device are coupled via the communication channel.