Patent application number | Description | Published |
20080199087 | Scalable Method For Encoding a Series of Original Images, and Associated Image Encoding Method, Encoding Device and Decoding Device - 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. | 08-21-2008 |
20090043837 | Method and Peer Network for Ascertaining the Peer Network Originating Station for a File - 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. | 02-12-2009 |
20090136138 | Methods and Device for the Determination and Reconstruction of a Predicted Image Area - 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. | 05-28-2009 |
20090158436 | Method for Exporting Use Rights for Electronic Data Objects - There currently exists a plurality of digital rights management (DRM) systems on the market, each with its own rights expression language. As a result, when an electronic data object is exported from one DRM system to another DRM system, translation errors are generated, which can cause the irretrievable loss of individual rights granted by the copyright holder. To export rights to use electronic data objects and ensure interoperability between different DRM systems, the original rights to use that can be associated with the electronic data object are exported from data source to the data sink. In this way, the original license is advantageously kept when the rights to use are exported from one DRM system to another DRM system. | 06-18-2009 |
20090219987 | Method and Device for Generating a Marked Data Flow, Method and Device for Inserting a Watermark Into a Marked Data Flow, and Marked Data Flow - A method generates a marked data flow from an encoded data flow; at least one first data flow section of the encoded data flow is marked as a marked data flow section; and the marking of the marked data flow section indicates that the marked data flow section is suitable to be mixed with a watermark. A method inserts watermarks into the marked data flow, and devices generate the marked data flow and insert watermarks into the marked data flow. | 09-03-2009 |
20100071068 | METHOD AND COMMUNICATION SYSTEM FOR THE COMPUTER-AIDED DETECTION AND IDENTIFICATION OF COPYRIGHTED CONTENTS - 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. Said method comprises the following steps: —first data packets that arc specified according to an execute command and are analyzed regarding at least one first criterion are fed to a first computer (PAT), first and second parameters being determined from the data packets meeting the at least one first criterion; —the first computer (PMT) determines the first data packets encompassing the second parameter from all first data packets that are fed to the first computer (PAT) and transmits said data packets to a second computer (FP); —a third computer (CRAW) sends at least one inquiry message for detecting data with copyrighted contents to the communication network, said third computer (CRAW) receives reply messages in reaction to the at least one inquiry message and requests second data packets meeting at least one second criterion from the communication network and analyzes the same, third and fourth parameters being determined from the data packets meeting the at least one second criterion; —the third computer (CRAW) determines the second data packets encompassing the fourth parameter from all second data packets that are fed to the third computer (CRAW) and transmits said data packets to the second computer (FP); —the first computer (PAT) transmits the first parameters to the third computer (CRAW) in order for said first parameters to be used in the second criteria; and—the computer (CRAW) transmits the third parameters to the second computer (PAT) in order for said third parameters to be used in the first criteria. | 03-18-2010 |
20130301711 | COMPRESSION AND DECOMPRESSION OF REFERENCE IMAGES IN A VIDEO ENCODER - Methods and devices transform image data, which are transformed by a compression filter before being compressed and stored in a reference image memory. In an extension, an inverse transformation to that of the compression filter is performed by a decompression filter when image data from the reference memory are read out and decompressed. The methods and devices can be used for image compression methods and image decompression methods that use reference image memories. | 11-14-2013 |
20140003517 | COMPRESSION AND DECOMPRESSION OF REFERENCE IMAGES IN A VIDEO CODING DEVICE | 01-02-2014 |