Transmission apparatus and transmission method
AssigneeSony Corporation
InventorsShinji Negishi, Hideki Koyanagi, Yoichi Yagasaki
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Abstract
A transmission system is a data delivery system which includes a server for transmitting ES data and a receiving terminal for receiving the transmitted data. The server includes a conversion controller for determining elementary streams (ES's) and a scene description to be transmitted based on transmission priority levels and display priority levels, in accordance with the state of a transmission path and/or a request from the receiving terminal. The server also includes an ES processor and a scene description processor.
Claims13
A transmission apparatus for transmitting to a receiving apparatus at least two different signals and a scene description which describes a scene formed of said at least two different signals, comprising:
- maintaining means for maintaining priority level information indicating transmission priority levels with respect to said at least two different signals;
- determining means for determining, in accordance with the state of a transmission path and/or a request from said receiving apparatus, signals to be transmitted based on the priority level information;
- and
- scene description converting means for converting the scene description in accordance with the signals to be transmitted.
A transmission method for transmitting to a receiving apparatus at least two different signals and a scene description which describes a scene formed of said at least two different signals, comprising:
- a maintaining step of maintaining, in a memory, priority level information indicating transmission priority levels with respect to said at least two different signals;
- a determining step of determining, in accordance with the state of a transmission path and/or a request from said receiving apparatus, signals to be transmitted based on the priority level information;
- and
- a scene description converting step of converting the scene description in accordance with the signals to be transmitted.
A transmission system comprising:
- a transmission apparatus for transmitting at least two different signals and a scene description which describes a scene formed of said at least two different signals;
- and
- a receiving apparatus for receiving the transmitted signals and the scene description;
- wherein said transmission apparatus comprises:
- maintaining means for maintaining priority level information indicating transmission priority levels with respect to said at least two different signals;
- determining means for determining, in accordance with the state of a transmission path or a request from said receiving apparatus, signals to be transmitted based on the priority level information;
- and
- scene description converting means for converting the scene description in accordance with the signals to be transmitted;
- and
- said receiving apparatus comprises:
- forming means for forming a scene based on the received signals and the scene description.
Dependencies are inferred from the claim text.