摘要:
An illumination system has a plurality of light-emitting diodes (R, G, B), at least one light-collimating section (12, 12′) arranged along a longitudinal axis (25) of the illumination system. The light-collimating sections merges into a light-mixing section (3) having a plurality of side-faces along the longitudinal axis (25). Light propagation in the light-mixing section is based on total internal reflection. The light-mixing section is provided with a light-exit window (13) emitting light towards an imaginary projection surface normal to the longitudinal axis. An end-portion (5) of the light-mixing section is provided with a prismatic protrusion portion (7) for obtaining a light distribution at the imaginary projection surface such that illumination at a first part of the imaginary projection surface is relatively low while illumination at a second part of the imaginary projection surface is relatively high, the first part being obtained at the same side of the longitudinal axis as the prismatic protrusion portion of the light-mixing section.
摘要:
A network includes a connected device and a connected client. The device includes a receiver to receive ping messages, a counter to count the ping messages received, and a transmitter to transmit a reply message that includes a ping load value that is responsive to the count value. The client includes a timer to measure a delay time, a transmitter to transmit a ping message to the device after the delay time has elapsed since transmitting a previous ping message to the device, a receiver to receive the reply message, and a controller to adjust the delay time responsive to the device ping load.
摘要:
This invention relates to a method (and corresponding device) of generating a user profile on the basis of playlists, wherein the user profile is generated on the basis of the user's own playlists and properties derived from them. In this way, more playlists are considered in the generation of a user profile, thereby generating a more reliable user profile. Additionally, the process (i.e. said method) is automated and uses known information. Aspects taken into account are frequency of occurrence, creation date of the playlist, and relation between content items (songs, video, etc.) in one or more playlists.
摘要:
The invention relates to a method of establishing a communication address of a device, the method comprising obtaining a main address; using the main address as communication address of the device; obtaining a backup address; and using the backup address as communication address of the device if a collision occurs with the main address. The device is for example an internet-enabled television set 402, a personal digital assistant 404, or a personal computer 406.
摘要:
The invention relates to a music retrieval system comprising input means (210) for inputting user data (310) representative of music, memory means (220) for storing pieces of music, retrieval means (230) for retrieving a desired piece of music (330) in accordance with the user input data (310) upon finding a match between a particular one of the pieces of music stored in the memory means (220) and the user input data (310), and output means (250) for reproducing at least a fraction of the retrieved piece of music. According to the invention, the system further comprises output control means (240) determining, from the user input data (310), a current position (360) within the retrieved piece of music (330), said output control means being adapted to cause a start (370) of the fraction (380) of the retrieved piece of music to substantially coincide with said position (360). The invention also relates to a method of retrieving music suitable for implementing the disclosed music retrieval system.
摘要:
A method is disclosed for distributing information content. The content is encoded into a plurality of layers comprising a base layer and an enhancement layer, such that the base layer is needed for reconstructing said information content. The enhancement layer is transmitted by means of superdistribution. Optionally, an accessible sample of the base layer can also be provided. When receiving the layer(s) users will become interested in purchasing the content Thus, according to the method a request for purchase is received from a user, and upon such a request the base layer is transmitted to the user. Not until the user holds both the base layer and the enhancement layer the content can be satisfactorily used. A system, a server, and a computer program product, providing corresponding distribution capabilities are also disclosed.
摘要:
The present invention relates to a method and a system for converting digital rights. The invention is based on the idea that a mechanism is introduced, by which it is possible to convert an unlimited right into at least one limited digital right, which gives a user access to the content a limited number of times. The present invention is advantageous since if a proprietor of an unlimited right wants to share his/her unlimited right with a friend, he/she does not have to give up the unlimited right to the friend. If the proprietor would like to share the right with other content consumers, the unlimited right can be converted into a number of limited rights, wherein these limited rights can be shared with the other content consumers.
摘要:
The invention relates to an ad-hoc peer to peer network for providing recommendations. User terminals (100, 103) of the data network comprise a local database (115) with community reference information. A processor (111) determines if a communication with a second user terminal (103) is possible and if so, communication is established by a direct wireless link. Community preference information is exchanged between the two user terminals (100,103) and the database (115) is updated accordingly by a database controller (113). The user terminal (100) also comprises a recommendation processor (117) which generates a recommendation based on the community preference information. The invention is particular applicable to small low cost terminals, such as mobile phones or wireless equipped Personal Digital Assistants.
摘要:
The invention relates to a method, a client device (CL1) and a computer program product for keeping track of content in devices of a network. The client device discovers (D) devices (MS) in a network, obtains information about events (E) provided by at least some discovered devices, obtains additional information (E, R2) related to an event provided by a first discovered device (MS), which event has been activated in relation to another client device (CL2). Finally, the client device stores said additional information, such that a user can access content related to an event by using said additional information. A user can thus easily locate content provided on the network.
摘要:
The present invention relates to a method, apparatus, computer program product and computer program element for creating a control point associated with a user in a computing environment having a network connectivity model, a method apparatus, computer program product and computer program element for accessing services provided by a device in such an environment. A control point is created for a user including a control point identity (step 46) based on a public key of the user and control point functionalities (step 48). The control point is stored (step 50) such that the user can operate any device from any physical entity or point of access where the control point is activated.