摘要:
In a system and method of watermarking content for tracking media consumption, the method may include creating, by a computer processor, at least one copy of a mezzanine asset for distribution to at least one user, the mezzanine asset being watermarked with a watermark identifier, and the at least one copy including a copy of the watermark identifier.
摘要:
A system (10) for generating an incrementally completed security mark (20′″) includes a computer-readable medium encoded with a computer program. The computer program includes computer readable code for selecting a carrier object (20, 20′, 20″, 20′″); computer readable code for selecting a number of steps in a workflow associated with the carrier object (20, 20′, 20″, 20′″) and a security level for each step in the workflow; computer readable code for determining available carrier object candidate areas (T1, T2, T3, T4, T5) to which to write information at each step in the workflow; and computer readable code for determining a number of bits to be input at each step in the workflow based upon the respective security levels and the available candidate areas (T1, T2, T3, T4, T5). The system further includes memory and a processor operatively coupled to the memory and to the computer-readable medium.
摘要:
A fingerprinting apparatus, comprising: a plurality of receiving units to receive a plurality of input datasets, each of the plurality of input datasets divided into a plurality of input segments, at least one of the plurality of input datasets uniquely marked; a selector to select at least one input segment from one of at least two different input datasets of the plurality of input datasets; and at least one combiner to arrange the selected at least one input segment to produce an output dataset having a plurality of output segments, such that the number of output segments is equal to the number of input segments in each input dataset.
摘要:
A method of outputting data read from a recording medium includes decoding data read from a recording medium, embedding electronic watermark information in the decoded data when the decoded data is output as recording data, and outputting the resulting data.
摘要:
An optical disk storing write-once information usable for protecting the copyright of the software by preventing the duplication, unauthorized use, etc., of the software. In the optical disk, a recording layer (213) is formed on a disk substrate (211) with a dielectric layer (212) inbetween. Then, an intermediate dielectric layer (214) and a reflecting layer (215) are successively laminated upon the recording layer (213), and an overcoat layer (216) is formed on the surface of the reflecting layer (215). A plurality of BCA (one of write-once identification information systems) sections (220a and 220b) are recorded by lowering the vertical magnetic anisotropy of the recording layer (213). At the time of reproduction, the write-once information is detected from differential signals.
摘要:
A number of data items are selected for inclusion in a data set so as to discourage a transmission of the entire set over a limited bandwidth communications path, such as the Internet. Each data item comprises one or more sections, and the totality of sections constitute the complete data set. Each section of the data set contains a watermark that includes an identifier of the section, and an identifier of the data set. In a preferred embodiment, the identifier of the section is the address of the section, and the identifier of the data set is a serial number and an indicator of the total size of the data set. The presence of the data set is confirmed by checking the watermarks of randomly selected sections to verify that the original section that formed the data set is present. If a section is discovered to be missing or altered, subsequent processing of data items of the data set is prevented. In a preferred embodiment, the identifiers are stored as a combination of robust and fragile watermarks.
摘要:
Advanced watermark embedders use psycho visual / acoustic models to minimize perception of the embedded watermark in media contents. However, it is expensive to implement such advanced watermark embedders in consumer appliances (3) such as DVD recorders. In accordance with the invention, embedding strength parameters (JND) are calculated (13) off-line at a remote location (1) and transmitted along with the media contents to the consumer appliance (3). A relatively simple embedder (33) uses the received parameters to control the strength of the watermark (36) to be embedded. The parameters may be accommodated in the transmitted signal as payload of a fragile watermark or as user data in an encrypted MPEG stream.
摘要:
A method, system and computer readable medium for the blocking of recording digital content at an end user multimedia end-user-system during the rendering of encrypted digital multimedia files. Before the process of rendering of encrypted digital multimedia can be started all devices and/or ports capable of capturing the rendered media stream during playback are opened to ensure that this multimedia content is not recorded. This blocks the usage of the devices and/or ports that can be used to store un-encrypted content that has been decrypted for the purposes of playing or rendering. The method also includes an exception, which allows recording with permission.
摘要:
Tracking data in accordance with an embodiment of the invention generally involves determining whether data supplied by an intermediary includes rights data, such as a watermark, that indicates ownership rights in the data. If the data supplied by the intermediary includes rights data, then a record is generated that indicates that the intermediary supplied data contains rights data. The intermediary may also record the source and destination of data passing through the intermediary. In addition, the intermediary may dynamically update rights data to indicate a source, destination or path of data passing through the intermediary. The intermediary may also generate statistical information about data passing through the intermediary.