Ntt Docomo, Inc.

Nirou Tsuchiya

Masayuki Tsuda

Akiko Tobe

An object is to switch executions of applications appropriately from one to another when a plurality of applications use a limited resource. A mobile device () is provided with an execution state shift unit () for shifting an execution state between a multiplex-execution state and a single-execution state in a multi-application execution environment, a resource release unit () for releasing a resource used by applications being executed in the multi-application execution environment, an application stop unit () for stopping an application other than the application to be executed in the single-execution state, and a resource allocation unit () for allocating the resource released by the resource release unit () to the application to be executed in the single-execution state when the execution state is shifted from the multiplex-execution state to the single-execution state by the execution state shift unit ().

Mobile device and application switching method

An event queue managing module that prevents unnecessary events from continuously executing applications when an application execution environment resumes from a suspended state, and including: a queue managing unit for storing event objects reported from an event detector of a basic software unit into an event queue in order of occurrence of events and managing their queue; an event classification detection unit for detecting the event classification and parameter of the event objects whose queue is managed by the queue managing unit; a stop state detection unit for detecting a stop state of an application execution environment; and an event deletion unit for deleting an unnecessary event from the event objects stored in the event queue when the application execution environment is in the stop state.

Event queue managing device and event queue managing method

A positioning control device includes a GPS hardware control unit that makes GPS determine a current location at different positioning accuracies, and a positioning request management unit that makes the GPS hardware control unit carry out positioning in response to a positioning request from an application according to a positioning accuracy specified in the positioning request, acquires the positioning result, and returns the acquired positioning result to the application of the request origin. In a case where a positioning accuracy of a new positioning request is equal to or less than a positioning accuracy of a latest positioning result, the positioning request management unit reuses the latest positioning result and returns the latest positioning result in response to the new positioning request.

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Yokohama, Japan

Nirou Tsuchiya