Appliance-guided edit-operations in advanced digital video recording systems
View Patent ↗The invention comprises an application for recording and the playback of MPEG-2 transport-streams transmitted via DVB-systems with optical discs. Apart from audio- and video-signals, additional information (which describe the content of the DVB-multiplex) will also be transmitted in DVB-SI descriptors. These descriptors correspond to the incoming transport-stream-packets and can be used for comfortable features, like event-triggered start of a recording or automatic generation of play-lists.
1. Method for analyzing metadata in a digital video recorder, comprising the steps:
receiving a digital television signal including metadata specifying service information, said service information including information about at least one of (1) the running status of a present program and/or (2) the running status of the program following the present program;
extracting said status information from the received digital television signal; and
generating start-time and/or end-time information for a program to be, being or having been recorded based on a change of said extracted running status information and without user intervention, where the running status indicates one of running, not-running, and starting soon.
2. Method according to claim 1 , wherein said generated start-time and/or end-time is used for controlling a recording of a program.
3. Method according to claim 1 , wherein said generated start-time and/or end-time is used for generating a play-list of recorded programs.
4. Method according to claim 3 , wherein said play-list is generated during recording the program.
5. Method according to claim 3 , wherein metadata specifying the service information for the recorded programs is stored in a database and said play-list is generated or modified after finishing a recording.
6. Method according to claim 1 , wherein said generated start-time and/or end-time is used for editing a recorded program.
7. Method according to claim 1 , said metadata specifying service information having DVB-SI format and said running status information being included in the Event Information Table specified in the DVB-SI standard.
8. Method according to claim 1 further comprising transforming at least part of said extracted metadata into XML metadata descriptors; and
storing said XML metadata descriptors in a database.
9. Digital video recorder, including the following means for analyzing metadata:
means for receiving a digital signal including metadata specifying service information, said service information including information about at least one of (1) the running status of a present program and/or (2) the running status of the program following the present program;
means for extracting said status information from the received digital television signal; and
means for generating start-time and/or end-time information for a program to be, being or having been recorded based on a change of said running extracted status information, and without user intervention, where the running status indicates one of running, not-running, and starting soon.