Data broadcast program transport stream (TS) transmission device, related method, computer program and storage medium, distribution device and distribution system

A data broadcast program transport stream transmission device provided in a broadcast station, and for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, comprising:

• a judgment list storage unit operable to store a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• a separation judgment unit operable to separate each source element from the first TS, judge in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• an output unit operable to output the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• a local element storage unit operable to store one or more local elements produced in the broadcast station, wherein
• the judgment list storage unit further has:
• a replacement list storage subunit operable to store a replacement list that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit,
• the separation judgment unit further has:
• a replacement judgment subunit operable to, if the replacement judgment subunit judges in the affirmative, refer to the replacement list and judge whether the separated source element is for replacement,
• a notification subunit sends a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and
• the output unit has:
• a reading subunit operable to, if a replacement instruction is received from the notification subunit, read a local element indicated in the replacement instruction from the local element storage unit;
• a generation output subunit operable to generate the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and for outputting the generated data broadcast program TS;
• a second setting subunit operable to set the data broadcast program TS to maintain an equal number of elements transmitted per carousel cycle as the first TS;
• a null packet multiplexing subunit operable to, if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because a local element is smaller in size than a source element shown in the replacement list for replacement, multiplex any surplus TS packets onto the data broadcast program TS as null packets;
• and
• an insert-packet multiplexing subunit operable to, if a TS packet shortage in a carousel cycle of the data broadcast program TS arises because a local element is larger in size than a source element shown in the replacement list for replacement, forcibly insert a TS packet generated from the local element onto the data broadcast program TS in the carousel cycle.

A method of transmitting a data broadcast program with data broadcast program transport stream transmission device provided in a broadcast station, for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, comprising the steps of:

• storing, in a judgment list storage unit, a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• separately, in a separation judgment unit, each source element from the first TS, and judging in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• outputting, in an output unit, the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• storing, in a local element storage unit, one or more local elements produced in the broadcast station, wherein the judgment list storage unit further has a replacement list storage subunit;
• storing a replacement list in the replacement list storage subunit, that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit, wherein the separation judgment unit further has a replacement judgment subunit;
• judging when the replacement judgment subunit judges in the affirmative, to refer to the replacement list and to judge whether the separated source element is for replacement,
• sending, with a notification subunit, a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and the output unit has a reading subunit;
• reading, with the reading subunit if a replacement instruction is received from the notification subunit, a local element indicated in the replacement instruction from the local element storage unit;
• generating, with a generation output subunit, the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and outputting the generated data broadcast program TS;
• setting the data broadcast program TS to maintain the same bandwidth as the first TS with a first setting subunit;
• repeatedly multiplexing a TS packet generated from a local element onto the data broadcast program TS to eliminate any surplus, if a repeat multiplexing subunit determines if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because the local element is smaller in size than a source element shown in the replacement list for replacement;
• and
• multiplexing any surplus TS packets generated from the local element onto the data broadcast program TS in a subsequent carousel cycle, if a cycle-delay packet multiplexing subunit determines if a TS packet shortage in a carousel cycle of the data broadcast program TS arises because the local element is larger in size than a source element shown in the replacement list for replacement.

A non-transitory computer-readable storage medium storing a computer program for transmitting a data broadcast program with a data broadcast program transport stream transmission device provided in a broadcast station, for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, the computer program enabling a computer to execute the following steps of:

• storing, in a judgment list storage unit, a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• separately, in a separation judgment unit, each source element from the first TS, and judging in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• outputting, in an output unit, the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• storing, in a local element storage unit, one or more local elements produced in the broadcast station, wherein the judgment list storage unit further has a replacement list storage subunit;
• storing a replacement list in the replacement list storage subunit, that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit, wherein the separation judgment unit further has a replacement judgment subunit;
• judging when the replacement judgment subunit judges in the affirmative, to refer to the replacement list and to judge whether the separated source element is for replacement,
• sending, with a notification subunit, a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and the output unit has a reading subunit;
• reading, with the reading subunit if a replacement instruction is received from the notification subunit, a local element indicated in the replacement instruction from the local element storage unit;
• generating, with a generation output subunit, the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and outputting the generated data broadcast program TS;
• setting the data broadcast program TS to maintain an equal number of elements transmitted per carousel cycle as the first TS with a second setting subunit;
• multiplexing any surplus TS packets onto the data broadcast program TS as null packets, with a null packet multiplexing subunit, if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because a local element is smaller in size than a source element shown in the replacement list for replacement;
• and
• inserting a TS packet generated from the local element onto the data broadcast program TS in the carousel cycle with an insert-packet multiplexing subunit, if a TS packet shortage in a carousel cycle of the broadcast program TS arises because a local element is larger in size than a source element shown in the replacement list for a replacement.

A distribution system including a distribution device that distributes a first contact and a transport stream transmission device provided in a broadcast station, and for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, comprising

• a judgment list storage unit operable to store a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• a separation judgment unit operable to separate each source element from the first TS, and to judge in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• an output unit operable to output the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• a local element storage unit operable to store one or more local elements produced in the broadcast station, wherein
• the judgment list storage unit further has:
• a replacement list storage subunit operable to store a replacement list that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit,
• the separation judgment unit further has:
• a replacement judgment subunit operable to, if the replacement judgment subunit judges in the affirmative, refer to the replacement list and judge whether the separated source element is for replacement,
• a notification subunit sends a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and
• the output unit has:
• a reading subunit operable to, if a replacement instruction is received from the notification subunit, read a local element indicated in the replacement instruction from the local element storage unit;
• a generation output subunit operable to generate the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and for outputting the generated data broadcast program TS;
• a first setting subunit operable to set the data broadcast program TS to maintain the same bandwidth as the first TS;
• a repeat multiplexing subunit operable to, if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because a local element is smaller in size than a source element shown in the replacement list for replacement, repeatedly multiplex a TS packet generated from the local element onto the data broadcast program TS to eliminate the surplus;
• and
• a cycle-delay packet multiplexing subunit operable to, if a TS packet shortage in a carousel cycle of the data broadcast program TS arises because a local element is larger in size than a source element shown in the replacement list for replacement, multiplex any surplus TS packets generated from the local element onto the data broadcast program TS in a subsequent carousel cycle.

A method of transmitting a data broadcast program with data broadcast program transport stream transmission device provided in a broadcast station, for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, comprising the steps of:

• storing, in a judgment list storage unit, a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• separately, in a separation judgment unit, each source element from the first TS, and judging in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• outputting, in an output unit, the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• storing, in a local element storage unit, one or more local elements produced in the broadcast station, wherein the judgment list storage unit further has a replacement list storage subunit;
• storing a replacement list in the replacement list storage subunit, that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit, wherein the separation judgment unit further has a replacement judgment subunit;
• judging when the replacement judgment subunit judges in the affirmative, to refer to the replacement list and to judge whether the separated source element is for replacement,
• sending, with a notification subunit, a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and the output unit has a reading subunit;
• reading, with the reading subunit if a replacement instruction is received from the notification subunit, a local element indicated in the replacement instruction from the local element storage unit;
• generating, with a generation output subunit, the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and outputting the generated data broadcast program TS;
• setting the data broadcast program TS to maintain an equal number of elements transmitted per carousel cycle as the first TS with a second setting subunit;
• multiplexing any surplus TS packets onto the data broadcast program TS as null packets, with a null packet multiplexing subunit, if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because a local element is smaller in size than a source element shown in the replacement list for replacement;
• and
• inserting a TS packet generated from the local element onto the data broadcast program TS in the carousel cycle with an insert-packet multiplexing subunit, if a TS packet shortage in a carousel cycle of the broadcast program TS arises because a local element is larger in size than a source element shown in the replacement list for a replacement.

A non-transitory computer-readable storage medium storing a computer program for transmitting a data broadcast program with a data broadcast program transport stream transmission device provided in a broadcast station, for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, the computer program enabling a computer to execute the following steps of:

• storing, in a judgment list storage unit, a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• separately, in a separation judgment unit, each source element from the first TS, and judging in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• outputting, in an output unit, the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• storing, in a local element storage unit, one or more local elements produced in the broadcast station, wherein the judgment list storage unit further has a replacement list storage subunit;
• storing a replacement list in the replacement list storage subunit, that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit, wherein the separation judgment unit further has a replacement judgment subunit;
• judging when the replacement judgment subunit judges in the affirmative, to refer to the replacement list and to judge whether the separated source element is for replacement,
• sending, with a notification subunit, a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and the output unit has a reading subunit;
• reading, with the reading subunit if a replacement instruction is received from the notification subunit, a local element indicated in the replacement instruction from the local element storage unit;
• generating, with a generation output subunit, the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and outputting the generated data broadcast program TS;
• setting the data broadcast program TS to maintain an equal number of elements transmitted per carousel cycle as the first TS with a second setting subunit;
• multiplexing any surplus TS packets onto the data broadcast program TS as null packets, with a null packet multiplexing subunit, if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because a local element is smaller in size than a source element shown in the replacement list for replacement;
• and
• inserting a TS packet generated from the local element onto the data broadcast program TS in the carousel cycle with an insert-packet multiplexing subunit, if a TS packet shortage in a carousel cycle of the broadcast program TS arises because a local element is larger in size than a source element shown in the replacement list for a replacement.

A distribution system including a distribution device that distributes a first contact and a transport stream transmission device provided in a broadcast station, and for (i) receiving a first transport stream having multiplexed thereon a first content that includes one or more source elements and (ii) transmitting a data broadcast program transport stream based on the received first TS, comprising:

• a judgment list storage unit operable to store a judgment list that shows for each source element, whether the source element is for inclusion in a data broadcast program content of the broadcast station;
• a separation judgment unit operable to separate each source element from the first TS, and to judge in accordance with the judgment list whether the separated source element is for inclusion in the data broadcast program content;
• an output unit operable to output the data broadcast program TS with the separated source element included in the data broadcast program content if the separation judgment unit judges in the affirmative;
• and
• a local element storage unit operable to store one or more local elements produced in the broadcast station, wherein
• the judgment list storage unit further has:
• a replacement list storage subunit operable to store a replacement list that shows the replacement of source elements judged to be for inclusion by the separation judgment unit with local elements stored in the local element storage unit,
• the separation judgment unit further has:
• a replacement judgment subunit operable to, if the replacement judgment subunit judges in the affirmative, refer to the replacement list and judge whether the separated source element is for replacement,
• a notification subunit sends a replacement instruction to the output unit if the replacement judgment subunit judges in the affirmative, and
• the output unit has:
• a reading subunit operable to, if a replacement instruction is received from the notification subunit, read a local element indicated in the replacement instruction from the local element storage unit;
• a generation output subunit operable to generate the data broadcast program TS based on local elements read by the reading subunit and source elements notified by the notification subunit, and for outputting the generated data broadcast program TS;
• a second setting subunit operable to set the data broadcast program TS to maintain an equal number of elements transmitted per carousel cycle as the first TS;
• a null packet multiplexing subunit operable to, if a TS packet surplus in a carousel cycle of the data broadcast program TS arises because a local element is smaller in size than a source element shown in the replacement list for replacement, multiplex any surplus TS packets onto the data broadcast program TS as null packets;
• and
• an insert-packet multiplexing subunit operable to, if a TS packet shortage in a carousel cycle of the data broadcast program TS arises because a local element is larger in size than a source element shown in the replacement list for replacement, forcibly insert a TS packet generated from the local element onto the data broadcast program TS in the carousel cycle.