Abstract: A device including a first flow channel, a second flow channel and a body part including an inner volume. A first space of the inner volume is adapted to be filled with liquid and a second space of the inner volume is arranged to receive steam. The device further includes means for conveying a gas flow from the steam space of the inner volume via the first flow channel to the outside of the device during inhalation and means for conveying the exhaled gas flow from the outside of the device via the second flow channel to the first space of the inner volume. The device further includes means for measuring a flow and a temperature of an airflow, and means for adjusting the flow of the airflow mechanically and/or automatically. The present disclosure further relates to a method and a system.

Abstract: The present invention relates to a loudspeaker including an enclosure having front portion, side portions and back portion defining an inner volume, the front portion is formed as a waveguide surface and includes at least one driver in the center of the waveguide surface and is capable to radiate the main acoustic power of the loudspeaker to ambient volume in direction of first acoustic axis, and an additional driver attached to the enclosure. In accordance with the invention the additional driver is attached inside the enclosure such that a sub volume is formed inside the inner volume, the sub volume limited by the driver, spacers between the driver and the front portion, and the front portion of the enclosure, and at least one port is adapted to open from the sub volume to ambient volume either to side portion or back portion of the enclosure and at least one resonator acoustically connected to the sub volume, the resonator being tuned to at least one of unwanted resonances of the sub volume.

Abstract: According to an example aspect of the present invention, there is provided a method for calibrating a headphone including an amplifier with a memory and signal processing properties, the method comprising steps for determining a desired sound attributes for the headphone, and setting signal processing parameters in the amplifier in order to obtain the desired sound attributes either by measurement or based on the received input information from a user of the headphones.

Abstract: A device including a first flow channel, a second flow channel and a body part including an inner volume. A first space of the inner volume is adapted to be filled with liquid and a second space of the inner volume is arranged to receive steam. The device further includes means for conveying a gas flow from the steam space of the inner volume via the first flow channel to the outside of the device during inhalation and means for conveying the exhaled gas flow from the outside of the device via the second flow channel to the first space of the inner volume. The device further includes means for measuring a flow and a temperature of an airflow, and means for adjusting the flow of the airflow mechanically and/or automatically. The present disclosure further relates to a method and a system.

Abstract: The present invention relates to a loudspeaker including an enclosure having front portion, side portions and back portion defining an inner volume, the front portion is formed as a waveguide surface and includes at least one driver in the center of the waveguide surface and is capable to radiate the main acoustic power of the loudspeaker to ambient volume in direction of first acoustic axis, and an additional driver attached to the enclosure. In accordance with the invention the additional driver is attached inside the enclosure such that a sub volume is formed inside the inner volume, the sub volume limited by the driver, spacers between the driver and the front portion, and the front portion of the enclosure, and at least one port is adapted to open from the sub volume to ambient volume either to side portion or back portion of the enclosure and at least one resonator acoustically connected to the sub volume, the resonator being tuned to at least one of unwanted resonances of the sub volume.

Abstract: According to an example aspect of the present invention, there is provided a method for calibrating a headphone including an amplifier with a memory and signal processing properties, the method comprising steps for determining a desired sound attributes for the headphone, and setting signal processing parameters in the amplifier in order to obtain the desired sound attributes either by measurement or based on the received input information from a user of the headphones.

Abstract: The present invention provides an improved loudspeaker enclosure comprising two opposing end sections arranged at a distance from each other and enclosing sections which connect the end sections over said distance, wherein the inner volume of the enclosure is defined by said sections. The enclosure also has a reflex port which comprises a reflex opening which is provided to the enclosure and adapted to exhaust internal pressure from the inner volume to outside the enclosure. The reflex port further comprises an inner reflex port former which connects the inner volume of the enclosure to the reflex opening for forming the reflex port. The reflex port former is formed by molding as an integral inner wall section which extends inwards from the inner surface of either or both end section.

Abstract: The present invention provides an improved loudspeaker enclosure comprising two opposing end sections arranged at a distance from each other and enclosing sections which connect the end sections over said distance, wherein the inner volume of the enclosure is defined by said sections. The enclosure also has a reflex port which comprises a reflex opening which is provided to the enclosure and adapted to exhaust internal pressure from the inner volume to outside the enclosure. The reflex port further comprises an inner reflex port former which connects the inner volume of the enclosure to the reflex opening for forming the reflex port. The reflex port former is formed by molding as an integral inner wall section which extends inwards from the inner surface of either or both end section.

Abstract: A method of routing a message from a source node to a destination node in an adhoc wireless network comprising a plurality of nodes, comprising the steps of; transmitting a first message from the source node to the destination node, receiving said first message at said destination node, transmitting a second message from said destination node in response to the first message and, wherein at least one of said first message and said second message is sent between the source and destination nodes via a plurality of paths comprising at least one intermediate node, selecting a path for communication between the source node and the destination node using an indication of the time taken for at least one of said second and first messages to propagate between each node on each path.

Abstract: A method, system, and node provides security in a network such as a mobile proximity network and a mobile Ad-Hoc network. The security is provided by setting at least one of security parameters for a connection of a node to another node of the network. At least one context-awareness parameter is checked, and at least one of the security parameters is set depending on the result of the check of the at least one context-awareness parameter.

Abstract: An architectural solution in which standalone ad-hoc network cells are used as an extension of the backbone infrastructure in terms of network architecture or/and its service capabilities is provided. These Ad-Hoc networks will integrate to the Internet via cellular and other access networks. This integration brings new possibilities to network operators and ISP's. In its extended architecture, it is envisaged that the mobility issues are handled by utilizing the IP mobility capabilities, taking into account the mobile mesh Ad-Hoc specific requirements. A trunk node is elected from among nodes within a service area of an Ad-Hoc domain that underlies an access domain. The trunk node acts as a gateway between the nodes within the Ad-Hoc domain and a backbone access network. The election can be performed by the trunk node itself or by a radio resource management entity.

Abstract: A communications network for transferring communication frames between a base station and a plurality of subscriber stations. Each frame having sets of information and control messages, wherein at least some of the control messages allocate which set of information corresponds to which subscriber station. The overhead of the control messages being reduced.

Abstract: A method and apparatus provide security services in an ad-hoc network. In order to provide security services, a set of user identities is transmitted from a first ad-hoc node to a second network external to the ad-hoc network. The set of user identities includes user identities related to at least one ad-hoc node. A first set of authentication parameters is generated in the external network. The first set of authentication parameters includes an authentication vector for each user identity included in the set of user identities and each authentication vector including a second set of authentication parameters. Some of the authentication parameters of the second set are transferred to the first ad-hoc node, whereby a third set of authentication parameters is received at the first ad-hoc node. The third set of authentication parameters is utilized at the first ad-hoc node for providing a security service in the ad-hoc network.

Abstract: A traffic and radio resource control in a wireless device with multiple operation modes is disclosed. For accomplishing an efficient use of physical and radio resources in terms of the required service level, a first set of radio transmission resources is selected for an assembled output data stream. A path is then searched for with respect to each destination node of the stream, each path leading from the wireless communication device to the destination node in question and fulfilling the service level requirement corresponding to that destination node. The transmission of the output data stream is then scheduled according to the current state of the wireless communication device, when a path is found for each of the destination nodes. The operation modes of the wireless communication device are controlled to maintain the required service level during the transmission.

Abstract: A method for deciding on handover in a cellular communication system and a cellular communication system comprising cells (A, B, C, D) and a mobile station (MS1, MS2, MS3) having a connection to at least a first cell providing a certain data transfer rate i.e. a bit rate to the mobile station, wherein the system is arranged to collect bit rate information related to the mobile station and use the bit rate information for deciding on handover of the mobile station from the first cell to a second cell.

Abstract: The invention proposes a network system comprising a plurality of network nodes (10, 11), each of the network nodes comprising means (103, 113) for temporarily forming a group with at least one of the plurality of network nodes, sending means (101, 111) for sending information (which may include voice, text message, images etc.) to the group and receiving means (102, 112) for receiving information from the group, wherein the sending means and the receiving means are configured to provide a direct contact via a radio connection (12) between at least two network nodes of the group. The invention also proposes a corresponding method, a corresponding network node and network control nodes for assisting in forming temporary groups.

Abstract: The invention proposes a network system comprising a plurality of network nodes (10, 11), each of the network nodes comprising means (103, 113) for temporarily forming a group with at least one of the plurality of network nodes, sending means (101, 111) for sending information (which may include voice, text message, images etc.) to the group and receiving means (102, 112) for receiving information from the group, wherein the sending means and the receiving means are configured to provide a direct contact via a radio connection (12) between at least two network nodes of the group. The invention also proposes a corresponding method, a corresponding network node and network control nodes for assisting in forming temporary groups.

Abstract: The present invention relates to a system and method for providing services for mobile users based on location information. A plurality of devices is defined to form a group of devices. A first location information is determined, said first information associating with the location of at least one of the devices in the group. Second location information is also determined, said second information associating with the location of a station of the mobile user. The first and second information is processed to generate third information, said third information being based on the location of the station relative to the location of at least one device of the group. Third information is transported in a communication system after the transportation is triggered by a predefined condition.

Abstract: The present invention relates to a method and system for balancing load in a network environment comprising at least one ad hoc network and at least one overlay network, wherein at least one wireless mobile node of the ad hoc network is selected as a head node for collecting transmission related information, which is reported to a load balancing function of the network environment. There, the reported transmission related information is analyzed and a connection link within the network environment is selected.

Abstract: A communications network for transferring communication frames between a base station and a plurality of subscriber stations. Each frame having sets of information and control messages, wherein at least some of the control messages allocate which set of information corresponds to which subscriber station. The overhead of the control messages being reduced.