|Civolution B.V. Patent applications|
|Patent application number||Title||Published|
|20140196071||RENDERING DEVICE WITH CONTENT SUBSTITUTION - A device for rendering content from a first source comprising a first input for receiving the content from the first source, a second input for receiving a substitution content item from a second source, a substitution module for substituting a segment of the content with the substitution content item, and rendering means for rendering the content wherein the segment is substituted with the substitution content item. The rendering device has monitoring module for monitoring the reception of the segment, and controlling the substitution module dependent on whether the segment is being received, such that the substitution module ceases the substitution upon failure to receive the segment.||07-10-2014|
|20140059591||BROADCASTING AN INFORMATION SIGNAL HAVING SPECIAL CONTENT FOR TRIGGERING AN APPROPRIATE ACTION IN A USER DEVICE - The problem is solved by a method for broadcasting a broadcast signal, comprising generating an information signal having in time a first content up to a certain time and a second content after this time. The information signal is broadcast as a broadcast signal via a first communication link At least one first feature is being provided with respect to the second content, for example an advertisement. The second content is detected in the information signal using the at least one first feature. On detection of the second content in the information signal at least one second feature is extracted from the first content in the information signal preceding the second content. The at least one second feature is sent to a user device using a second communication link, different from the first communication link, the second communication link being faster than the first communication link||02-27-2014|
|20110280436||EMBEDDING AND DETECTION OF WATERMARK IN A MOTION IMAGE SIGNAL - A video watermarking scheme is disclosed, which is designed for the digital cinema format, as it will be used on large projector screens in theaters. The watermark is designed in such a way that it has minimal impact on the video quality, but is still detectable after capture with a handheld camera and conversion to, for instance, VHS, CD-Video or DVD format. The proposed watermarking system only exploits the temporal axis. This makes it invulnerable to geometrical distortions generally caused by such a way of capturing. The watermark is embedded by modulating a global property of the frames (e.g. the mean luminance) in accordance with the samples of the watermark. The embedding depth is preferably locally adapted within each frame to local statistics of the respective image. Watermark detection is performed by correlating the watermark sequence with extracted mean luminance values of a sequence of frames.||11-17-2011|
|20110066723||GENERATING STATISTICS OF POPULAR CONTENT - Client terminals report an easy-to-calculate identifier such as the Internet URL or a cryptographic hash of the content to a server. The server collects and counts the reported identifiers so as to obtain preliminary statistics. By aggregating these reported identifiers into the preliminary statistics, identifiers are revealed that are likely popular content. The server selects one or more identifiers from the preliminary statistics and makes these available to at least a subset of clients. The clients that obtain these one or more identifiers then access content and compute the easy-to-calculate identifiers as usual. If the computed identifier matches one of the identifiers obtained from the server, the client will additionally extract a watermarked identifier or compute a digital fingerprint of the content in question and report this to the server. The server then uses the received identifier or fingerprint to create final statistics by aggregating the preliminary statistics.||03-17-2011|
|20100046606||VIDEO WATERMARKING - A method of watermarking a video signal includes encoding the video signal using at least one encoding parameter that is time-varied according to a watermarking pattern. The parameter affects information lost while encoding the signal. The parameter may be a quantization factor corresponding to a particular coefficient of an encoding transform. The parameter may be an element of a quantization matrix corresponding to a particular coefficient in a block DCT transform. The method may be implemented in devices with limited processing resources by means of a software update. The method enables the devices to imprint an encoded signal with a robust watermark, which may survive subsequent decompression and recompression. Alternatively, a video signal may be watermarked by modifying a magnitude of a non-dc spatial frequency component in a manner which varies with time according to a watermarking pattern. Corresponding watermark detection methods and watermarking devices also are disclosed.||02-25-2010|
Patent applications by Civolution B.V.