Abstract: Disclosed is a method for the computer-aided detection and identification of copyrighted contents that are exchanged between at least two computers in a communication network, especially in peer-to-peer networks.

Abstract: A method determines a predicted image area for an image area, in which a temporal predictor for the image area is determined based on a reconstructed image that precedes said image, a local predictor for the image area is determined within a reconstructed image area of the image, a margin of error between the image area and the image area predicted image area is determined by the local predictor using the reconstructed image area and by the temporal predictor using one of the preceding images. A predicted image area can be reconstructed. Also disclosed are an establishing device for carrying out the method for determining a predicted image area as well as a reconstructing device for carrying out the reconstruction method.

Abstract: Files which are available for dissemination in a controlled peer-to-peer network are provided with a watermark comprising a large number of watermark elements. Upon download, the composition of the parts of the file which are obtained from a plurality of source stations provides a new watermark which can clearly be associated with the target station. By storing information about forwarded watermark elements of a network server, it is possible to reconstruct for each file the network station from which this file originates.

Abstract: A series of decoded images is generated from a series of original images encoded by a first encoding technique following movement-compensated, predictive encoding, where a starting image of a group of successive original images that are to be encoded is defined by a second encoding technique following movement-compensated, temporally filtered partial band encoding based on a determined encoding property of a decoded image of the group of images that are to be encoded, the decoded image is used for generating an output image having a low resolution level, before the images are encoded. At least one output image is generated on each level of resolution from the successive original images of the group of from at least one decoded image during image encoding. The decoded images are provided only with a reduced quality while the reconstituted images are of great quality.

Abstract: Disclosed is an image encoding method in which a series of decoded images are generated from a series of original images with the aid of a first encoding process. Furthermore, a series of second images are generated from an image group of the series of original images with the aid of an INTER encoding mode of the second encoding process, at least one decoded image being used as a reference image. Said reference image represents an original image area is to be encoded. A image decoding method decodes second images generated by the image encoding method.

Abstract: Angled plug having a device which converts a pull applied to a power cable connected to the angled plug in such a way that it causes the angled plug to be forced out of a socket. A clean copy of the Abstract that incorporates the above amendments is provided herewith on a separate page.

Abstract: A method is described for transmitting a byte stream (1) from a transmitter unit to a receiver unit in a network protocol, with the following steps: Removal of at least one data area (4a,4b) of the byte stream (1) from the byte stream, Transmission to the receiving unit of information relating to which data area (4a,4b) or which data areas (4a,4b) has or have been removed from the byte stream (1) and/or relating to the way in which the shortened byte stream is to be further processed, Transmission of the byte stream (5) shortened by at least one data area (4a,4b) to the receiver unit, which, from the information and the shortened byte stream, determines and further processes the at least one data area removed by the transmitter unit.

Abstract: A coding method codes a sequence of digitized images with a plurality of macro blocks in error-prone networks in which case the macro blocks in a section of the image are coded in a first intra-coding mode depending on predetermined criteria. In addition, the macro blocks in a section of the image are coded in a second intra-coding mode or in an inter-coding mode in which case in the inter-coding mode for the macro blocks, movement vectors are selected from the number of accessible reference images. The selection from the number of accessible reference images is limited in such a way that referencing takes place from image areas that were not subjected to the first intra-coding mode at a later stage.

Abstract: Disclosed are methods and devices for compressing and decompressing video data streams, according to which the statistical relationship between image symbols and the context assigned thereto is used for compression. Particularly disclosed is a context-sensitive encoding unit in which the image symbols filed in an image storage are assigned to different encoding branches via a context switch, where they are encoded and compressed by a Golomb encoder and a run length encoder.

Abstract: According to the invention, there are provided sets of contexts specifically adapted to encode special coefficients of a prediction error matrix, on the basis of previously encoded values of level k. Furthermore, the number of values of levels other than 0 is explicitly encoded and numbers of appropriate contexts are selected on the basis of the number of spectral coefficients other than 0.

Abstract: The data stream contains useful data and redundant data and at least one source-coded error-containing bit sequence that characterizes a given position within the data stream. The source-coded, error-free bit sequence is known by the channel decoder. The data stream is channel-decoded and the source-coded, error-containing bit sequence is determined from the channel-coded data stream. The data stream is once again channel-decoded, wherein the data stream is once again channel decoded taking into account the detected source coded, error-containing bit sequence.

Abstract: Spectral coefficients of a transformed prediction error matrix are linearized and converted to a sequence of levels and lengths by scanning. The level coefficients are arranged by sorting on the basis of their magnitude. The level sequence resulting from this, as well as sorting information, are subjected to differential coding.

Abstract: According to the invention, at least one image region is selected from each temporally preceding image that is considered, and the associated image information is stored with an item of allocation information. At least one mixed image is formed from the item of image information while taking the respective item of allocation information into account. The mixed image is used within the scope of a motion estimation, of a motion compensation or of an error masking for an image.