Patent application number | Description | Published |
20080219123 | Apparatus for and a method of copying a content carrying recording medium - Copying apparatus has a reader operable to access locations of a recording medium to read both content data and navigational command data that determines the order in which a player of the recording medium will access the content data. A navigator executes a navigation command in accordance with navigation data read by the reader. A controller controls the location of the recording medium accessed by the reader in accordance with the result of the execution of a navigation command executed by the navigator so as to cause the reader to follow a navigation path through the content data defined by the navigation data and to cause a presentation data storer to store data for enabling recording of the content data for the navigational path. | 09-11-2008 |
20080222737 | Apparatus for and a method of copy-protecting a content carrying recording medium - Recording data has content data and navigation control data to enable a legitimate player to navigate the content data. The recording data has a content data set and a spurious data set that is difficult to distinguish from the content data set but will ignored by a legitimate player. The content data is associated with the content data set and the spurious data set. The spurious data set may be associated with control data that inhibit playing or correct playing of the content data. A ghost structure such as a ghost video title set my be provided by causing information in at least one of the video title set information, video manager information and the volume information file structure to reference a non-existent video title set or not reference an existing video title set. The recording medium may be an optical disc such as a DVD or its precursors. | 09-11-2008 |
20080225665 | Apparatus for and a method of copy-protecting a content carrying recording medium - Apparatus and a method are described for providing, for recordal onto a recording medium, recording data having content data and control data for enabling a player playing such a recording medium to navigate through the content data. The apparatus has a copy protector to copy-protect the recording data by controlling the production of parameters that are associated with items of data in the recording data but that are not checked by a physical testing device such that a parameter associated with an item of the recording data that is not on the navigation path is inconsistent with that item of data, or is otherwise not as expected, to cause a copying device reading that the item of data to report an error, thereby inhibiting copying by that copying device. | 09-18-2008 |
20120195572 | METHOD AND APPARATUS FOR REPRODUCING COMPRESSED MEDIA CONTENT - A data file reproduction system has a data file supplying apparatus that extracts video data and audio data from a received data file, compresses the extracted video and audio data and produces a compressed data file containing the compressed audio and video data together with meta or navigation data determined from the data file for enabling navigation of the original data file. The compressed data file is then copy-protected. Upon request, the copy-protected compressed data file is communicated to a reproduction apparatus which decompresses the compressed audio and video data of the received copy-protected compressed data file, encodes the decompressed audio and video data and produces a copy-protected reconstituted data file containing the encoded audio and video data together with the meta or navigation data determined from the copy-protected compressed data file, so enabling navigation of the copy-protected reconstituted data file, the same as the original data file. | 08-02-2012 |