Non-real time services

A digital television receiver that receives non-real time (NRT) content, comprising in combination:

• an Internet protocol (IP) receiver that receives a stream of IP packets and selects an IP subnet containing a packet stream selected as an output packet stream;
• the output packet stream containing non-real time content, NRT service metadata and NRT content metadata;
• an electronic storage medium;
• a demultiplexer that demultiplexes the IP packet stream to produce:
• NRT content that is stored in the electronic storage medium,
• NRT service metadata, and
• NRT content metadata;
• an NRT metadata parser that produces NRT service metadata and NRT content metadata;
• and
• where the NRT metadata parser further processes NRT content description text derived from a Text Fragment Table (TFT), and where the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table (NRT-IT).

A digital television receiver that receives non-real time (NRT) content, comprising in combination:

• a receiver device that receives a signal and produces an output transport stream, the output transport stream containing an Internet Protocol (IP) stream of packets containing non-real time content, NRT service and NRT content metadata;
• an electronic storage medium;
• a demultiplexer that demultiplexes the IP stream of packets to produce:
• NRT content that is stored in the electronic storage medium,
• NRT service metadata, and
• NRT content metadata;
• an NRT metadata parser that produces NRT service metadata;
• NRT content description text and NRT content metadata, and
• wherein the NRT content description text is received within a Text Fragment Table (TFT), and where the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table (NRT-IT).

A method of receiving digital television signals, comprising

• tuning a radio frequency tuner to receive a radio frequency modulated channel containing a transport stream;
• demodulating the channel to produce an output transport stream;
• the output transport stream containing 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;
• demultiplexing the IP stream of packets to produce:
• NRT content that is stored in an electronic storage medium,
• the FLUTE FDT,
• NRT service metadata, and
• NRT content metadata;
• parsing the metadata to produces NRT service metadata;
• NRT content description text and NRT content metadata;
• and
• processing the NRT content description text derived from a Text Fragment Table (TFT), and where the Text Fragment Table has a linkage element that references entries in a Non-Real-Time Information Table (NRT-IT).