Abstract: A method of building a geo-tree includes collecting a plurality of data items having geographic and contextual tags, associating the geographic tags with the contextual tags, clustering the collected data items based on the contextual tags, classifying the clusters based on the contextual tags, building a geo-tree with each classified cluster being associated with a node on the tree and storing the geo-tree.

Abstract: The invention relates to a system for verifying geographical descriptiveness of a media file, such as a picture. The system comprises storage means adapted to store a media file, communication means adapted to send said media file to a plurality of user terminals, and to receive, from the user terminals, data indicating a guessed geographical position with which the user of each user terminal associates the media file. The system also comprises calculation means adapted to determine whether the media file is indicative of a geographical position based on the guessed geographical positions received from the plurality of user terminal.

Abstract: Disclosed herein is a context based payment system. Electronic currency or coupons can be made dependent on context, and the context can be one of location or geography, time, date, distance, sound, or other devices. The value of the currency exists only if a pre-condition is fulfilled. For example, if the currency is location dependent, the value only exists in a defined area (currency value area). The goods or the service in the value-system are also context dependent, that is, they can only be sold or offered in a defined area (product value area). Accordingly, if the product value area and the currency value area overlap, a purchase and payment can be made.

Abstract: A method of building a geo-tree includes collecting a plurality of data items having geographic and contextual tags, associating the geographic tags with the contextual tags, clustering the collected data items based on the contextual tags, classifying the clusters based on the contextual tags, building a geo-tree with each classified cluster being associated with a node on the tree and storing the geo-tree.

Abstract: Disclosed herein is a context based payment system. Electronic currency or coupons can be made dependent on context, and the context can be one of location or geography, time, date, distance, sound, or other devices. The value of the currency exists only if a pre-condition is fulfilled. For example, if the currency is location dependent, the value only exists in a defined area (currency value area). The goods or the service in the value-system are also context dependent, that is, they can only be sold or offered in a defined area (product value area). Accordingly, if the product value area and the currency value area overlap, a purchase and payment can be made.

Abstract: The present invention relates to a terminal client (101), a client device (100, 200, 300, 400) and a network infrastructure for enabling management of messages in a telecommunications network. According to the invention, the terminal client (101) comprises a distributed inbox client component (103) that is configured to synchronize all incoming and outgoing messages with at least one other client device (200, 300) that is associated with a user of a first client device (100). The terminal client (101) further comprises a connector component (104) configured at least as an interface between the distributed client component (103) and a network infrastructure (20) suitable for forwarding and receiving messages. With the terminal client (101) incorporating in client devices associated with a user, the user is able to experience synchronized chat in real-time and can further utilize a device independent synchronous messaging service anywhere and anytime.

Abstract: The present invention relates to a user device and a method for providing a solution for how to make automatic update of the presence state in a mobile device in a communication service e.g. a buddy list in a chat service. The solution is based on that the user device analyzes the background ‘“noise” 5 (sound) of the audio environment, and utilizes this analysis for determining a presence state of the user of the mobile device.

Abstract: The invention relates to user access to data sets associated with a digital map via a user terminal. According to the invention the digital map together with data indicators associated with positions on the map and providing data sets are obtained. Here each data indicator is provided with at least one priority setting. A selection of data indicators is then made for the map when it is scaled for presentation via the user terminal and divided into sectors. Each sector comprises a number of neighbouring positions and is associated with a corresponding data indicator threshold defining how many data indicators that are allowed to be presented together with this sector. The selection involves selecting data indicators according to their priority settings and limited by the corresponding data indicator threshold for being presented with each sector. Then the scaled digital map is presented via the user terminal together with the selected data indicators.

Abstract: The invention relates to a system for verifying geographical descriptiveness of a media file, such as a picture. The system comprises storage means adapted to store a media file, communication means adapted to send said media file to a plurality of user terminals, and to receive, from the user terminals, data indicating a guessed geographical position with which the user of each user terminal associates the media file. The system also comprises calculation means adapted to determine whether the media file is indicative of a geographical position based on the guessed geographical positions received from the plurality of user terminal.

Abstract: A broadcast channel, such as a broadcast control channel that carries a short message service, in a GSM/EDGE or similar communication system can be extended with additional timeslots. These additional timeslots can be pointed out in a tree structure, the root of which is in the SMS broadcast channel. The extended broadcast channel can be used for broadcast-like services provided under a multimedia broadcast/multicast service.

Abstract: A broadcast channel, such as a broadcast control channel that carries a short message service, in a GSM/EDGE or similar communication system can be extended with additional timeslots. These additional timeslots can be pointed out in a tree structure, the root of which is in the SMS broadcast channel. The extended broadcast channel can be used for broadcast-like services provided under a multimedia broadcast/multicast service.

Abstract: The present invention relates to a terminal client (101), a client device (100, 200, 300, 400) and a network infrastructure for enabling management of messages in a telecommunications network. According to the invention, the terminal client (101) comprises a distributed inbox client component (103) that is configured to synchronize all incoming and outgoing messages with at least one other client device (200, 300) that is associated with a user of a first client device (100). The terminal client (101) further comprises a connector component (104) configured at least as an interface between the distributed client component (103) and a network infrastructure (20) suitable for forwarding and receiving messages. With the terminal client (101) incorporating in client devices associated with a user, the user is able to experience synchronized chat in real-time and can further utilize a device independent synchronous messaging service anywhere and anytime.

Abstract: A multi-part fixed codebook includes both individual fixed codebooks for each channel and a shared fixed codebook. Although the shared fixed codebook is common to all channels, the channels are associated with individual lags. Furthermore, the individual fixed codebooks are associated with individual gains, and the individual lags are also associated with individual gains. The excitation from each individual fixed codebook is added to the corresponding excitation (a shared codebook vector, but individual lags and gains for each channel) from the shared fixed codebook.

Abstract: A multi-channel linear predictive analysis-by-synthesis signal encoding method detects (S26, S27) inter-channel correlation and select one of several possible encoding modes (S24, S29, S30) based on the detected correlation.

Abstract: A multi-channel linear predictive analysis-by-synthesis signal encoding method determines (S1) a leading channel and encodes the leading channel as an embedded bitstream. Thereafter trailing channels are encoded as a discardable bitstream exploiting cross-correlation to the leading channel.

Abstract: A multi-channel linear predictive analysis-by-synthesis signal encoding method detects (S26, S27) inter-channel correlation and select one of several possible encoding modes (S24, S29, S30) based on the detected correlation.

Abstract: A multi-part fixed codebook includes both individual fixed codebooks (FC1, FC2) for each channel and a shared fixed codebook (FCS). Although the shared fixed codebook (FCS) is common to all channels, the channels are associated with individual lags (D1, D2). Furthermore, the individual fixed codebooks (FC1, FC2) are associated with individual gains (gF1, gF2), and the individual lags (D1, D2) are also associated with individual gains (gFS1, gFS2). The excitation from each individual fixed codebook (FS1, FS2) is added to the corresponding excitation (a shared codebook vector, but individual lags and gains for each channel) from the shared fixed codebook (FCS).

Abstract: A multi-channel linear predictive analysis-by-synthesis signal encoding method determines (S1) a leading channel and encodes the leading channel as an embedded bitstream. Thereafter trailing channels are encoded as a discardable bitstream exploiting cross-correlation to the leading channel.

Abstract: A multi-channel signal encoder includes an analysis part with an analysis filter block having a matrix-valued transfer function with at least one non-zero non-diagonal element. The corresponding synthesis part includes a synthesis filter block (12M) having the inverse matrix-valued transfer function. This arrangement reduces both intra-channel redundancy and inter-channel redundancy in linear predictive analysis-by-synthesis signal encoding.

Abstract: A channel optimized vector quantization apparatus includes a device for weighting a sample vector x by a weighting matrix A and a device for weighting a set of code book vectors ĉr by a weighting matrix B. Device form a set of distance measures {dw(Ax,Bĉr)} representing the distance between the weighted sample vector Ax and each weighted code book vector Bĉr. Other device form a set of distortion measures {&agr;i(x)} by multiplying each distance measure by a channel transition probability Pr|i that an index r has been received at a decoder when an index i has been sent from an encoder and adding together these multiplied distance measures for each possible index r. Finally device determine an index imin corresponding to the smallest distortion measure &agr;i(x) and represents the sample vector by this index imin.