Abstract: A method of media streaming implemented by a network device, the method comprising encapsulating a message box into one or more packets in a segment, and sending the segment directly or indirectly to a streaming client.

Abstract: A scrambling and descrambling method that includes reading of original PID and TSC bits in the PID and TSC fields of a packet header of an MPEG2 stream which is at least partially scrambled. A temporary PID may be written in a PID field in place of the original PID, and may be a function of the original PID value and TSC bits according to a correspondence table of an original PID and TSC bits with the temporary PIDs. The value zero may be written in the TSC field in place of the original value, and scrambling of the stream with modified fields may occur. Applications include the satellite transmission of partially scrambled MPEG2 digital signals.

Abstract: 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.

Abstract: A method and apparatus are described for modifying an analogue video signal to impair its conversion to a digital signal by an analogue to digital converter. The resulting modified signal may prevent the operation of the analogue to digital converter altogether, or even if a digital signal can be output and recorded, may result in a signal which is difficult to view due to a reduction in quality on playback. The modifications made to the signal include altering the amplitude of the horizontal synchronization pulses in the original signal, and/or modifying the level of the back porch, or the region of the signal adjacent the back porch. Additionally, methods are contemplated for the use of specific response models for target analogue to digital converters, and display devices.

Abstract: Systems and methods of efficiently indexing a digitized video stream are presented. In one embodiment, the method comprises receiving a coded video stream containing non-scrambled frame location indicators and scrambled video data, filtering the non-scrambled frame location indicators, and generating a database used for indexing frames. In one embodiment, the apparatus comprises a processor such as a hardware and/or software capable of generating a database used for improving video playback functionality by way of filtering non-scrambled indicators that define the start of frames in a digitized video stream.

Abstract: Provided are an apparatus and method for generating digital cinema content and an apparatus and method for playing digital cinema content. The method of playing digital cinema content using a digital cinema package (DCP) including frame data having a first resolution and length information about frame data having a second resolution lower than the first resolution, and a key delivery message (KDM) includes obtaining a material exchange format (MXF) file and a decryption key by parsing the DCP and the KDM, extracting an encrypted triplet from the MXF file, extracting the length information about the second-resolution frame data using the encrypted triplet and the decryption key, decrypting an amount of data required to decrypt the second-resolution frame data in the first-resolution frame data using the length information about the second-resolution frame data, and decoding the decrypted second-resolution frame data.

Abstract: Described herein are a method and apparatus including receiving digital video content, receiving an indication of an object of an image of the digital video content, receiving an indication of a grouping of the object in a frame sequence per second, swapping forward in time the grouping of the object with a time-following object to generate a first non-sequential frame of digital video content, performing an object assignment for the forward time swap, swapping backward in time the grouping of the object with a time-following object to generate a second non-sequential frame of digital video content and performing an object assignment for the backward time swap. The swapping backward in time and the swapping forward in time cause flicker in a recording of the digital video content.

Abstract: A method for detecting whether query video data appears in a reference video, comprising determining a measure of depth from a portion of the query video data, comparing the measure against a measure of depth for the reference video to perform a depth match and, if a match is determined; comparing a visual signature derived from the query video data against a visual signature of the reference video to perform a visual match to determine a measure representing the likelihood that the query video data derives from the reference video.

Abstract: The digital broadcast recording apparatus (100) includes a recording unit (160) for recording digital broadcast, a detection unit (170) for detecting a packet containing information regarding a portion permitted to be recorded from a stream of a program prohibited from being recorded in the digital broadcast, and a control unit (140) for controlling, when the recording unit (160) records the program prohibited from being recorded, the recording unit (160) to record the portion permitted to be recorded based on the information contained in the packet detected by the detection unit (170).

Abstract: Described herein are a method and apparatus including receiving digital video content, receiving an indication of an object of an image of the digital video content, receiving an indication of a grouping of the object in a frame sequence per second, swapping forward in time the grouping of the object with a time-following object to generate a first non-sequential frame of digital video content, performing an object assignment for the forward time swap, swapping backward in time the grouping of the object with a time-following object to generate a second non-sequential frame of digital video content and performing an object assignment for the backward time swap. The swapping backward in time and the swapping forward in time cause flicker in a recording of the digital video content.

Abstract: A method for producing scrambled content (FIG. 6A), the method including providing content (600) to be scrambled, identifying a first portion of the content (620), identifying a second portion of the content (630), computing a disguising function of at least part of the first portion (620) of the content and producing a result, and scrambling the second portion (630) of the content, the scrambling being based in part, on the result. Related apparatus and methods are also described.

Abstract: One or more methods and systems of efficiently indexing a digitized video stream is presented. In one embodiment, the method comprises receiving a coded video stream containing non-scrambled frame location indicators and scrambled video data, filtering the non-scrambled frame location indicators, and generating a database used for indexing frames. In one embodiment, the apparatus comprises a processor such as a hardware and/or software capable of generating a database used for improving video playback functionality by way of filtering non-scrambled indicators that define the start of frames in a digitized video stream.

Abstract: A method and apparatus are described for modifying an analogue video signal to impair its conversion to a digital signal by an analogue to digital converter. The resulting modified signal may prevent the operation of the analogue to digital converter altogether, or even if a digital signal can be output and recorded, may result in a signal which is difficult to view due to a reduction in quality on playback. The modifications made to the signal include altering the amplitude of the horizontal synchronization pulses in the original signal, and/or modifying the level of the back porch, or the region of the signal adjacent the back porch. Additionally, methods are contemplated for the use of specific response models for target analogue to digital converters, and display devices.

Abstract: The method comprises the following steps: reading of an original PID and TSC bits in the PID and TSC fields of a packet header of an MPEG2 stream at least partially scrambled, writing of a temporary PID in a PID field in place of the original PID, function of the original PID value and TSC bits according to a correspondence table of an original PID and TSC bits with the temporary PIDs, writing of the value zero in the TSC field in place of the original value, scrambling of the stream with modified fields. Applications for the satellite transmission of partially scrambled MPEG2 digital signals.

Abstract: Access to an audiovisual product is controlled by obscuring data. Cells 420 of audiovisual data A, B, C are reproduced by a sequence instruction 410 (e.g. a PGC or Program Chain). One such sequence instruction 410a correctly reproduces the audiovisual data A, B, C, but is hidden amongst many other sequence instructions 410b which incorrectly reproduce the sequence of cells 420 (e.g. as BAC, ACB, CAB, etc.).

Abstract: A copy protection color stripe process is defeated first by determining the location of the video lines including the color stripe process. Then some or all of the lines including the modified color bursts are modified so as to render the overall video signal recordable. The modification is accomplished in a number of ways, including phase shifting the color stripe burst into the correct phase, replacing, attenuating and or eliminating some of the color stripe bursts or at least a portion of particular color burst envelopes so that they are no longer effective, mixing the color stripe burst with color stripe signals of the correct phase so as to eliminate most or all of the phase error present or modifying the horizontal sync pulse signals immediately preceding the modified color bursts so that the modified color bursts are not detected by a VCR and hence have no effect.