Abstract: An audio system with a dynamic sound field adaptation to follow a listeners position. The audio system includes a relative location determination mechanism for determining the relative positions of at least all sound emitting components of the audio system with respect to each other, a personal device detector for detecting a personal device belonging to a user, a personal device position tracking mechanism for tracking the position of the personal device, and a re-calibration mechanism for re-calibrating the sound field such that the sweet spot of the sound field is placed at the current position of the personal device.

Abstract: A method for dispatching steps of an application running on an application server which can be accessed from client terminals. Users select user interaction elements on client terminals, and the interactions are transmitted to the application server executing a main part of an application, which creates output that contains the next set of possible user interactions. Calling application steps can be addressed and invoked by other application steps in order to reuse software components necessary for processing said other application steps. Nesting programming commands used to call another application step are arbitrarily nested and serve as a called sub-routine within the calling application step. Values are returned to the calling application step, and nesting paths of called application steps are discarded in case a user switches to another application.

Abstract: A sensor management system is provided which manages the utilization of one or more sensors on behalf of a context source providing sensor information to a context creating system. Each sensor is made available for the context source by a sensor service which provides a communication interface for the sensor. The sensor management system contains a context source interaction unit, a sensor service discovery unit, a sensor management service, and a sensor access object unit.

Abstract: A system for supplying context information on request includes a context attribute specifying a type, a format, and a focus entity for a data record representing a response to a request for context information, at least one context source providing context data relevant for the request of context information, and at least one context interpreter configured to establish an interconnection between the context attribute and the context source. The system also includes a configuration unit configured to keep track of availability and suitability of context sources and context interpreters and set-up a dynamic context graph configuration for assembling the context sources and the context interpreters based on the availability and suitability of the context sources and context interpreters to provide the data record.

Abstract: An audio system with a dynamic sound field adaptation to follow a listeners position. The audio system includes a relative location determination mechanism for determining the relative positions of at least all sound emitting components of the audio system with respect to each other, a personal device detector for detecting a personal device belonging to a user, a personal device position tracking mechanism for tracking the position of the personal device, and a re-calibration mechanism for re-calibrating the sound field such that the sweet spot of the sound field is placed at the current position of the personal device.

Abstract: The present invention provides a dissemination of body data throughout a network implementing a method which comprises steps for forming a data package in a source node providing the body data by attaching to the body data forwarding data which specify dispatching details for the body data, piggybacking the data package on a message which is destined to be sent from the source node to a receiving node through an explicit network connection, sending the message with the piggybacked data package from the source node to the receiving node by means of the explicit network connection established between both nodes, receiving the message with the piggybacked data package on the receiving node and separating the data package from the message, splitting up the data package into the forwarding data and the body data, evaluating the forwarding data and passing on a copy of the body data to the application subsystem of the receiving node in case the receiving node is stated as an addressee in the forwarding data, modify

Abstract: A sensor management system is proposed which manages the utilisation of one or more sensors on behalf of a context source providing sensor information to a context creating system. Each sensor is made available for the context source by means of a sensor service which provides a communication interface for the sensor. The sensor management system contains a context source interaction means, a sensor service discovery means, a sensor management service, and a sensor access object means. The context source interaction means interacts with the context source, whereby the interaction includes a reception of a request from the context source for one or more sensors, each of a defined characteristic. The sensor service discovery means discovers a sensor service available by the direct link or the network link and for storing lookup information concerning the sensor services discovered.

Abstract: The invention relates to the field of service provisioning in wireless peer-to-peer networks organized according to the store-and-forward messaging principle, in particular to a service discovery protocol for providing low-profile, low-overhead service discovery information needed for determining the availability of requested remote services in a wireless multi-hop ad-hoc network.

Abstract: The underlying invention generally relates to the field of client/server architectures and distributed processing systems. It pertains e.g. to mobile service portals, application servers and transaction system in heterogeneous telecommunication networks where these applications are employed.

Abstract: The present invention provides a system for supplying context information on request to context-aware devices comprising context attributes (106) specifying a type, a format, and a focus entity for a data record representing the response to the request for context information, at least one context source (109) providing context data relevant for the request of context information, at least one context interpreter (108, 401, 601, 602) for establishing an interconnection between the context attribute (106) and the context source (109), and a configuration means (801) for setting up a dynamic context graph configuration for assembling context sources and context interpreters based on their actual availability and suitability to provide the data record.