Transmitting apparatus, receiving apparatus and transmitting/receiving system for digital data

A receiving apparatus for receiving digital data transmitted from a transmitting apparatus, comprising:

• storage means for storing a first delay for digital data due to digital processing inside the receiving apparatus;
• delay information obtaining means for obtaining the delay information, which shows a second delay for the digital data, transmitted from the transmitting apparatus;
• and
• delay information generating means for generating delay information indicating a total delay obtained from a total of the first delay stored in the storage means and the second delay indicated by the delay information obtained by the delay information obtaining means,
• wherein the receiving apparatus receives digital data transmitted from a plurality of transmitting apparatuses,
• wherein the delay information obtaining means obtains respective delay information transmitted from the plurality of transmitting apparatuses,
• wherein the receiving apparatus further includes delay means for delaying, based on the delay information obtained by the delay information obtaining means, digital data aside from digital data with a longest delay of the digital data received from the plurality of transmitting apparatuses so as to match the longest delay, and
• wherein the delay information generating means calculates a total of the first delay stored in the storage means and the longest delay of delays indicated by the delay information obtained by the delay information obtaining means.

A digital data transmitting/receiving system comprising:

• a transmitting apparatus for transmitting digital data, and
• a receiving apparatus for receiving the digital data transmitted from the transmitting apparatus, wherein
• the transmitting apparatus includes a first storage unit for storing a first digital data delay due to digital processing inside the transmitting apparatus, and a delay information transmitting unit for transmitting delay information indicating the first delay stored in the first storage unit, and
• the receiving apparatus includes a second storage unit for storing a second delay for the digital data due to digital processing inside the receiving apparatus, a delay information obtaining unit for obtaining the delay information transmitted from the transmitting apparatus, and a delay information generating unit for generating delay information indicating a total delay obtained from a total of the second delay stored in the second storage unit and the first delay indicated by the delay information obtained by the delay information obtaining unit,
• wherein the receiving apparatus receives digital data transmitted from a plurality of the transmitting apparatuses,
• wherein the delay information obtaining unit of the receiving apparatus obtains respective delay information transmitted from the plurality of the transmitting apparatuses,
• wherein the receiving apparatus further includes a delay unit for delaying, based on the delay information obtained by the delay information obtaining unit, digital data aside from digital data with a longest delay of the digital data received from the plurality of transmitting apparatuses so as to match the longest delay, and
• wherein the delay information generating unit calculates a total of the second delay stored in the second storage unit and the longest delay of delays indicated by the delay information obtained by the delay information obtaining unit.

A transmitting apparatus for transmitting digital data comprising:

• a storage unit for storing a delay for digital data due to digital processing inside the transmitting apparatus;
• and
• a delay information transmitting unit for transmitting delay information indicating the delay stored in the storage unit,
• wherein the transmitting apparatus transmits the digital data to a receiving apparatus, the receiving apparatus comprising:
• storage unit for storing a first delay for digital data due to digital processing inside the receiving apparatus;
• delay information obtaining unit for obtaining the delay information, which shows a second delay for the digital data, transmitted from the transmitting apparatus;
• and
• delay information generating unit for generating delay information indicating a total delay obtained from a total of the first delay stored in the storage unit and the second delay indicated by the delay information obtained by the delay information obtaining unit,
• wherein the receiving apparatus receives digital data transmitted from a plurality of transmitting apparatuses,
• wherein the delay information obtaining unit obtains respective delay information transmitted from the plurality of transmitting apparatuses,
• wherein the receiving apparatus further includes delay unit for delaying, based on the delay information obtained by the delay information obtaining unit, digital data aside from digital data with a longest delay of the digital data received from the plurality of transmitting apparatuses so as to match the longest delay, and
• wherein the delay information generating unit calculates a total of the first delay stored in the storage unit and the longest delay of delays indicated by the delay information obtained by the delay information obtaining unit.

A receiving apparatus for receiving digital data transmitted from a transmitting apparatus, comprising:

• a storage unit for storing a first delay for digital data due to digital processing inside the receiving apparatus;
• a delay information obtaining unit for obtaining the delay information, which shows a second delay for the digital data, transmitted from the transmitting apparatus;
• and
• a delay information generating unit for generating delay information indicating a total delay obtained from a total of the first delay stored in the storage unit and the second delay indicated by the delay information obtained by the delay information obtaining unit,
• wherein the receiving apparatus receives digital data transmitted from a plurality of the transmitting apparatuses,
• wherein the delay information obtaining unit of the receiving apparatus obtains respective delay information transmitted from the plurality of the transmitting apparatuses,
• wherein the receiving apparatus further includes a delay unit for delaying, based on the delay information obtained by the delay information obtaining unit, digital data aside from digital data with a longest delay of the digital data received from the plurality of transmitting apparatuses so as to match the longest delay, and
• wherein the delay information generating unit calculates a total of the second delay stored in the second storage unit and the longest delay of delays indicated by the delay information obtained by the delay information obtaining unit.