Multiplexing apparatus and method, transmitting apparatus and method, and recording medium

A multiplexing method of time-division-multiplexing at least one digital signal bit stream and additional information added to the bit stream, said method comprising the steps of:

• calculating schedule information on a schedule of time division multiplexing on the basis of access unit information on an access unit prescribed in the bit stream, and calculating the additional information;
• storing the schedule information and the additional information;
• and
• time-division-multiplexing the bit stream and the additional information on the basis of the schedule information.

A transmitting apparatus which transmits a multiplexed stream formed by time-division-multiplexing at least one digital signal bit stream and additional information be added to the bit stream, said apparatus comprising:

• means for one of inputting the multiplexed stream and forming the multiplexed stream;
• and
• means for transmitting the multiplexed stream, the multiplexed stream being obtained by:
• calculating schedule information on a schedule of time division multiplexing on the basis of access unit information on an access unit prescribed in the bit stream, and calculating the additional information;
• storing the schedule information and the additional information;
• and
• time-division-multiplexing the bit stream and the additional information on the basis of the schedule information.

A transmitting method of transmitting a multiplexed stream formed by time-division-multiplexing at least one digital signal bit stream and additional information which is to be added to the bit stream, said method comprising the steps of:

• one of inputting the multiplexed stream and forming the multiplexed stream;
• and
• transmitting the multiplexed stream, the multiplexed stream being obtained by:
• calculating schedule information on a schedule of time division multiplexing on the basis of access unit information on an access unit prescribed in the bit stream, and calculating the additional information;
• storing the schedule information and the additional information;
• and
• time-division-multiplexing the bit stream and the additional information on the basis of the schedule information.

A recording medium on which a multiplexed stream formed by time-division-multiplexing at least one digital signal bit stream and additional information which is to be added to the bit stream is recorded,

• the multiplexed stream being obtained by:
• calculating schedule information on a schedule of time division multiplexing on the basis of access unit information on an access unit prescribed in the bit stream, and calculating the additional information;
• storing the schedule information and the additional information;
• and
• time-division-multiplexing the bit stream and the additional information on the basis of the schedule information.