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US 12,750,174 B2Granted
Transmission apparatus, transmission method, reception apparatus, and reception method
AssigneeSony Corporation
InventorIkuo Tsukagoshi
Life of this patent
Estimating the term…
Abstract
A transmission apparatus including: a transport stream generation unit configured to generate a transport stream in which a first transport packet containing transport media in a payload and a second transport packet containing information about the transport media in a payload, are time-division multiplexed; a transport stream transmission unit configured to transmit the transport stream to a receiver through a predetermined transmission channel; and a time information insertion unit configured to insert time information for allowing the receiver to obtain decoding time and/or presentation time into the first transport packet or the second transport packet.
Claims16
A reception apparatus, comprising:
- first reception circuitry configured to receive first clock information, the first clock information being information for obtaining at least one of a decoding time and a presentation time, said at least one of the decoding time and the presentation time corresponding to the first reception circuitry;
- second reception circuitry configured to receive a transport stream via an RF transmission path, the transport stream comprising a first transport packet including media data and a second transport packet including control information, each of the first transport packet and the second transport packet comprising a first header portion and a first payload portion, wherein
- the first payload portion of each of the first transport packet and the second transport packet comprises a second header portion and a second payload portion,
- the second header portion of each of the first payload portion of the first transport packet and the second transport packet includes a fragmentation indicator,
- the fragmentation indicator being configured to indicate whether (i) the second payload portion corresponding to the respective second header portion includes a non-fragmented data or (ii) the second payload portion corresponding to the respective second header portion includes a fragmented data, and
- a value of a presentation time of the media data included in the first transport packet is included in the control information included in the second transport packet;
- and
- processing circuitry configured to:
- set a clock based on the first clock information;
- and
- process the media data extracted from the transport stream based on the value of the presentation time, wherein
- the second header portion of the first payload portion of the first transport packet further includes a type information field,
- the type information field is configured to indicate the second payload portion corresponding to the second header portion corresponds to the media data,
- the processing circuitry is further configured to process the transport stream based on the fragmentation indicator and the type information field,
- the value of the presentation time is inserted into the second payload portion of the second transport packet.
12 more elements
A reception method, comprising:
- receiving, by first reception circuitry of a reception apparatus, first clock information, the first clock information being information for obtaining at least one of a decoding time and a presentation time, said at least one of the decoding time and the presentation time corresponding to the first reception circuitry;
- receiving, by second reception circuitry of the reception apparatus, a transport stream via an RF transmission path, the transport stream comprising a first transport packet including media data and a second transport packet including control information, each of the first transport packet and the second transport packet comprising a first header portion and a first payload portion, wherein
- the first payload portion of each of the first transport packet and the second transport packet comprises a second header portion and a second payload portion,
- the second header portion of each of the first payload portion of the first transport packet and the second transport packet includes a fragmentation indicator,
- the fragmentation indicator being configured to indicate either (i) the second payload portion corresponding to the respective second header portion includes a non-fragmented data or (ii) the second payload portion corresponding to the respective second header portion includes a fragmented data, and
- a value of a presentation time of the media data included in the first transport packet is included in the control information included in the second transport packet;
- setting, by processing circuitry of the reception apparatus, a clock based on the first clock information;
- and
- processing, by the processing circuitry of the reception apparatus, the media data extracted from the transport stream based on the value of the presentation time, wherein
- the second header portion of the first payload portion of the first transport packet further includes a type information field,
- the type information field is configured to indicate the second payload portion corresponding to the second header portion corresponds to the media data,
- the processing circuitry is further configured to process the transport stream based on the fragmentation indicator and the type information field,
- the value of the presentation time is inserted into the second payload portion of the second transport packet.
10 more elements
Dependencies are inferred from the claim text.