Class / Patent application number | Description | Number of patent applications / Date published |
386260000 | Video watermarking | 9 |
20110142418 | BLOCKINESS AND FIDELITY IN WATERMARKING - A device to measure pressure is disclosed. In one embodiment, the device comprises at least one element comprising two layers ( | 06-16-2011 |
20110142419 | CHANGEABLE BLOCK LIST - A method comprises accessing encoded video data; accessing a list of watermarks to the encoded video data; determining syntax elements for current blocks of video data and syntax elements of currents blocks with the watermarks; removing watermarks that cause visible artifacts based on differences in the syntax elements between the current blocks and current blocks with watermarks, thereby creating filtered list of acceptable watermarks. The method can further include determining coding variable ranges for the current block and current block with watermarks from the list; comparing the coding variable ranges for the current blocks and current blocks with watermarks from the list; and filtering out watermarks that yield coding variable ranges outside the coding variable ranges of the current blocks. Additionally, the method can include determining bit lengths of the current blocks and current blocks with watermarks from the list; comparing bit lengths of the current blocks and current blocks with watermarks from the list; and filtering out watermarks that yield bit lengths not equal to the bit lengths of the current blocks. | 06-16-2011 |
20110206350 | DIGITAL CHIP AND METHOD OF OPERATION THEREOF - A digital chip system, digital chip, methods for embedding data and methods for extracting data are provided. In some embodiments, a digital chip includes: a watermark encoder digital chip configured to receive one or more watermark bits and generate a stego-video; and a watermark decoder digital chip configured to receive the stego-video and extract the one or more watermark bits from the stego-video. In some embodiments, the digital chip also includes: a video decoder controller digital chip configured to receive raw video data, wherein the raw video data is received from a video decoder; a configuration controller digital chip configured to configure the video decoder; a memory management unit digital chip configured to store at least one of the raw video frame, the raw video data or the stego-video; and an Ethernet controller unit digital chip configured to store or access the raw video or stego-video. | 08-25-2011 |
20120134650 | METHOD FOR COPY PROTECTION - A method for copy protection in which an audiovisual or audio data is divided into a plurality of portions. The plurality of portions is at least partly scrambled and prepared so as to be stored on a record carrier in the scrambled order. This is done so that a physical position on the record carrier, e.g., a sector of the record carrier, where a respective portions of the divided data is stored depends on the scrambled order. | 05-31-2012 |
20140140682 | SYSTEMS AND METHODS OF FINGERPRINTING AND IDENTIFYING MEDIA CONTENTS - Systems and methods are provided for identifying a video object using digital fingerprints. The digital fingerprints are generated from information extracted from the video object including encoded video. The digital fingerprints can be calculated in a manner that permits identification of both the video object and operational characteristics of the video object based on matching calculated digital fingerprints with known fingerprints of known video objects. Systems and methods are described that allow a DVD to be uniquely identified and identify whether the DVD is original, copied or pirated. Systems and methods are described for computing digital fingerprints from strings of bits in which certain additional data is optionally embedded. Systems and methods are described that permit media players to access known signatures of known video objects maintained on one or more databases and to identify video objects presented for playing on the media player. In the present continuation application, the video object is extended to media content including video and audio, and DVD is extended to media file, network stream and other content mediums. | 05-22-2014 |
20140161420 | SYSTEM AND METHOD FOR EMBEDDING SUPPLEMENTARY DATA INTO DIGITAL MEDIA FILES - A novel process and system for flexibly adding supplemental digital program content such as, for example, transactional advertising content, games, polls, contests, interactive music videos, and e-commerce content generally and the like, into pre-prepared digital media files, such as an MP3 audio file or the like, for playback by digital playback apparatus, wherein the pre-prepared media file is modified by embedding therein executable code representing such supplemental program content, and enabling the playback apparatus to decode and execute the presentation of the supplemental program material as an addition to the playback of the pre-prepared media file content. | 06-12-2014 |
20140248039 | METHOD AND APPARATUS FOR SECURING COMPUTER VIDEO AND AUDIO SUBSYSTEMS - In general, embodiments of the invention include methods and apparatuses for securing otherwise unsecured computer audio and video subsystems. Embodiments of the invention perform watermarking of video and/or audio data streams output by a computer system. Additional security features that are included in embodiments of the invention include fingerprinting, snooping, capturing streams for local or remote analytics or archiving, and mixing of secure system content with local audio and video content. | 09-04-2014 |
20150043891 | SECOND SCREEN DEVICE AND SYSTEM - A second screen system comprises a first screen that renders a first content comprising watermarks of a first type and watermarks of a second type. The watermarks of the first type are captured by a second screen that reacts to these watermarks. The second screen displays information to a user and receives user input. The second screen also watermarks a second content with watermarks of the second type and renders the second content. A third device captures watermarks of the second type in both the first content and the second content. Since the watermarks embedded by the second screen can depend on the user's actions, the third device can indirectly react to the user's actions. | 02-12-2015 |
20160094802 | RECEIVER-SIDE MARKING OF CONTENT FOR UNIQUE IDENTIFICATION - The secure selection of at least one uniquely visually rendered media content stream(s) by a receiver of streams may allow enhanced fingerprinting of broadcast media content. The stream(s) may be visually rendered, and fingerprint marks inserted, using the preprocessing techniques of explicit insertion, implicit insertion, and object modification. In particular, multiple media content streams of the same event and signaling information may be received by a receiver. Each media content stream of the multiple of the media content streams may include a unique rendering of the media content stream. The receiver may be associated with a unique identifier (ID). At least one media content stream of the multiple media content streams may be selected using the receiver. The selected at least one media content stream of the multiple media content streams may be provided to a display. | 03-31-2016 |