Non-real time services
View Patent ↗In certain embodiments, a digital television broadcast method involves generating a digital television signal having one or more transport streams; where data in at least one of the one or more transport streams supports non-real time (NRT) services; where such data comprises an Internet protocol (IP) stream of packets containing non-real time content, a FLUTE file description table (FDT), NRT service metadata and NRT content metadata; where the NRT metadata further comprises NRT content description text that is contained in Text Fragment Table (TFT); and outputting the one or more transport streams for broadcast as a digital television signal. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
1. A digital television broadcast method, comprising:
generating a digital television signal having one or more transport streams;
where data in at least one of the one or more transport streams supports Non-Real Time services;
where such data comprises an Internet Protocol stream of packets containing Non-Real Time content, a FLUTE File Description Table, Non-Real Time service metadata and Non-Real Time content metadata;
where the Non-Real Time metadata further comprises Non-Real Time content description text that is contained in a Text Fragment Table; and
outputting the one or more transport streams for broadcast as a digital television signal.
2. The digital television broadcast method according to claim 1 , further comprising storing the Non-Real Time content description text is stored to a storage device.
3. The digital television broadcast method according to claim 1 , wherein the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table.
4. The digital television broadcast method according to claim 1 , wherein the output transport stream further comprises a Virtual Channel Table, and wherein the Virtual Channel Table contains a service type code indicative of a virtual channel corresponding to Non-Real Time content.
5. The digital television broadcast method according to claim 4 , wherein the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table.
6. The digital television broadcast method according to claim 4 , wherein the Non-Real Time content description text is received in a Text Fragment Table, and wherein the output transport stream further comprises a Virtual Channel Table, and wherein the Virtual Channel Table contains a service type code indicative of a virtual channel corresponding to Non-Real Time content.
7. The digital television broadcast method according to claim 1 , where the one or more transport streams further contains Non-Real Time metadata.
8. The digital television broadcast method according to claim 7 , where Non-Real Time metadata is broadcast in a service signaling channel.
9. A digital television broadcast method, comprising:
generating a digital television signal having one or more transport streams;
where data in at least one of the one or more transport streams supports Non-Real Time services;
where such data comprises an Internet Protocol stream of packets containing Non-Real Time content, a FLUTE File Description Table, Non-Real Time service metadata and Non-Real Time content metadata;
where the Non-Real Time metadata further comprises Non-Real Time content description text that is contained in Text Fragment Table;
where the Non-Real Time content description text is stored in the Text Fragment Table;
where the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table;
where the output transport stream further comprises a Virtual Channel Table, and wherein the Virtual Channel Table contains a service type code indicative of a virtual channel corresponding to Non-Real Time content;
where the one or more transport streams further contains Non-Real Time metadata;
where Non-Real Time metadata is broadcast in a service signaling channel; and
outputting the one or more transport streams for broadcast as a digital television signal.
10. A digital television broadcast apparatus, comprising:
a transmitter that generates a digital television broadcast signal having one or more transport streams;
where data in at least one of the one or more transport streams supports Non-Real Time services;
where such data comprises an Internet Protocol stream of packets containing Non-Real Time content, a FLUTE File Description Table, Non-Real Time service metadata and Non-Real Time content metadata; and
where the Non-Real Time metadata further comprises Non-Real Time content description text that is contained in Text Fragment Table.
11. The digital television broadcast apparatus according to claim 10 , further comprising a storage device storing the Non-Real Time content description text.
12. The digital television broadcast apparatus according to claim 10 , wherein the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table.
13. The digital television broadcast apparatus according to claim 10 , wherein the output transport stream further comprises a Virtual Channel Table, and wherein the Virtual Channel Table contains a service type code indicative of a virtual channel corresponding to Non-Real Time content.
14. The digital television broadcast apparatus according to claim 13 , wherein the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table.
15. The digital television broadcast apparatus according to claim 13 , wherein the Non-Real Time content description text is received in a Text Fragment Table, and wherein the output transport stream further comprises a Virtual Channel Table, and wherein the Virtual Channel Table contains a service type code indicative of a virtual channel corresponding to Non-Real Time content.
16. The digital television broadcast apparatus according to claim 10 , where the one or more transport streams further contains Non-Real Time metadata.
17. The digital television broadcast apparatus according to claim 16 , where Non-Real Time metadata is broadcast in a service signaling channel.
18. A digital television broadcast apparatus, comprising:
a transmitter that generates a digital television broadcast signal having one or more transport streams;
where data in at least one of the one or more transport streams supports Non-Real Time services;
where such data comprises an Internet Protocol stream of packets containing Non-Real Time content, a FLUTE File Description Table, Non-Real Time service metadata and Non-Real Time content metadata;
where the Non-Real Time metadata further comprises Non-Real Time content description text that is contained in Text Fragment Table;
where the Non-Real Time content description text is stored in the Text Fragment Table;
where the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table;
where the output transport stream further comprises a Virtual Channel Table, and wherein the Virtual Channel Table contains a service type code indicative of a virtual channel corresponding to Non-Real Time content;
where the one or more transport streams further contains Non-Real Time metadata;
where Non-Real Time metadata is broadcast in a service signaling channel; and
the transmitter configured to output the one or more transport streams for broadcast as a digital television signal.