Abstract:
Several data streams contain video, audio and/or other data. Some of the data streams are pre-recorded in a multiplex on a storage medium while other data streams are located out of the data stream multiplex on the storage medium. The data streams are synchronized using a navigation file, which comprises descriptors pointing to parts of said data streams, wherein said descriptors define the arrangement in time for said data streams by means of data sub stream paths.
Abstract:
A method enables and controls automatic propagation of metadata items to a recording media or to devices for reading from or writing to recording media. The metadata items are provided with a propagation property, which defines to which recording media or to which devices the metadata items shall propagate, and on which recording media or in which devices the metadata items shall be stored. At least when a recording medium is inserted into or removed from a device, or when the device is powered up or down, the metadata items are automatically propagated and stored in accordance with the propagation property.
Abstract:
The handling of large amounts of data on storing media shall be simplified. Therefore, a method for maintaining a storage media by generating, editing or reading log data related to the content and usage of a data item stored or to be stored on a storage medium is provided. Data items are deleted or recommendations for deletion are provided on the basis of the log data from the storage medium. Thus, the user is relieved from the unpleasant and time-consuming task of deleting data items from recording media.
Abstract:
Optical storage media often contain data structures for a menu suitable for selection of a title, a chapter, a parameter or others. Such menus usually comprise a number of buttons to be displayed, with each button having a state. Possible states of buttons are “unselected”, “selected” or “activated”. According to the invention, the representation of a menu button may vary, depending on its state. An image or an image sequence, e.g. cartoon, may be associated to a buttons state, providing user animation. Further, a sound or sound sequence, e.g. melody or click, may be associated to a buttons state, and may be played back when the button enters this state. A data structure is disclosed which allows storage of such menu data e.g. on a Blu-ray disc.
Abstract:
Optical storage media often contain data structures for a menu suitable for selection of a title, a chapter, a parameter or others. Such menus usually comprise a number of buttons to be displayed, with each button having a state. Possible states of buttons are “unselected”, “selected” or “activated”. According to the invention, the representation of a menu button may vary, depending on its state. An image or an image sequence, e.g. cartoon, may be associated to a buttons state, providing user animation. Further, a sound or sound sequence, e.g. melody or click, may be associated to a buttons state, and may be played back when the button enters this state. A data structure is disclosed which allows storage of such menu data e.g. on a Blu-ray disc.
Abstract:
DVD Rewritable/Re-recordable discs will be used for recording and playing back digital bitstreams, for example MPEG data packets. To enable proper real-time playback of stored MPEG transport packets, a time information is to be added to every data packet to be recorded. A DVD streamer is connected to the application device via an interface, e.g. IEEE 1394. The interface internally uses timestamps having a special format. According to the invention, such interface-generated timestamps are also used for the DVD stream recording, instead of additionally generated independent streamer-specific timestamps. However, a timestamp format conversion is to be carried out because the DVD Streamer timestamp format is different from the IEEE 1394 timestamp format. For such timestamp format conversion differences between consecutive IEEE 1394 timestamps are determined and are used for calculating the DVD stream recording timestamps.
Abstract:
The DVD Stream Recording standard defines application packets as the logically smallest units created from the input data stream during recording. Usually the conversion from a point on the time axis to a corresponding application packet is realized by using a mapping list available in the navigation data. However, depending on the target time and a Stream Object selected, the match found can vary significantly. The invention allows editing a recorded stream of application packets with higher precision. The stream comprises at least a first application packet having a first arrival time stamp and a subsequent second application packet having a second arrival time stamp. For editing the recorded stream a discrete time is input that is a start time or an end time and has a value between the first arrival time stamp and the second arrival time stamp. The discrete time is mapped onto the first or the second arrival time stamp, and the recorded stream is edited correspondingly.
Abstract:
The present invention relates to a digital audio and/or video recorder and to a method for recording of program data comprised in a transport stream, the transport stream having metadata, the method comprising the steps of: de-multiplexing the transport stream to provide the program data and the metadata, storing the program data in a digital recording format, the digital recording format having a first data structure for storing of navigation data and a second data structure of a second stream format for storage of program data packets, transforming the metadata into the first data structure, and storing the transformed metadata as part of the navigation data.
Abstract:
An architecture for a multimedia peer-to-peer home network allows the automated definition of peer groups, or zones, by using group labels, where each peer is capable of automatically identifying whether other peers are members of the same group, or of another group, and where each peer may freely cooperate with other peers of the same group, e.g. exchange information or share resources like storage capacity. Using this architecture, it is e.g. possible that a user who is accessing a node within a peer group has also access to any other node of the peer group, without being requested for authentication. Another characteristic is that other peer groups can be defined which have access rights to network resources and services. Advantageously, the invention simplifies network creation and operation by not requiring the user to have special networking knowledge.
Abstract:
A method for calling up information about current radio and television programs wherein desired signals are transmitted together or separately with decodable additional information signals. The method includes the steps of selecting from the additional information signals that information which is directly or indirectly linked to time information. The selected information is compared with a time period which can be predetermined and within which the current time and/or the time assigned to the current program occurs. The information corresponding to this time period is then displayed on a display device of a receiving device which receives the desired signals and additional information signals. The information is displayed in response to depressing a call up key of an associated receiving device or remote controller one or more times, such that at least two fields selected from the group consisting of start time, stop time, title, and remaining run time are displayed on a portion of the display device, while another portion of the display device displays information associated with the desired signals of a current channel which the receiving device is tuned to.