US 11,800,162 B2
Transmission device, transmission method, reception device, and reception method
Ikuo Tsukagoshi, Tokyo (JP)
Assigned to SONY CORPORATION, Tokyo (JP)
Filed by SONY CORPORATION, Tokyo (JP)
Filed on Oct. 9, 2019, as Appl. No. 16/597,452.
Application 16/597,452 is a continuation of application No. 15/122,698, granted, now 10,506,264, previously published as PCT/JP2015/061069, filed on Apr. 9, 2015.
Claims priority of application No. 2014-083232 (JP), filed on Apr. 14, 2014.
Prior Publication US 2020/0112752 A1, Apr. 9, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/236 (2011.01); H04N 21/2662 (2011.01); H04N 21/434 (2011.01)
CPC H04N 21/236 (2013.01) [H04N 21/2662 (2013.01); H04N 21/434 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A transmission device comprising:
circuitry configured to:
perform hierarchical encoding on image data of each picture that constitutes moving image data and generate a first video stream including encoded image data of pictures in a lower hierarchy, a second video stream including encoded image data of pictures in a higher hierarchy, and a table having a first level specification value of the first video stream, a second level specification value of a video stream that is composed of the first video stream and the second video stream, and a maximum value of a hierarchy of the second video stream,
wherein encoded image data of pictures included in the first video stream have a NAL unit that includes the first level specification value and the second level specification value, wherein the second level specification value in the table and the NAL unit corresponds to a bit rate level specification value of the first video stream and the second video stream that is represented by an 8-bit field of level_idc and is set to level 5.2, and the first level specification value in the table and the NAL unit corresponds to a bit rate level specification value of the first video stream that is represented by an 8-bit field of level idc and is set to a level that is lower than the level 5.2 of the second level specification value,
wherein the table is different from the first video stream, the second video stream, and the NAL unit;
set a hierarchy of the second video stream as a higher hierarchy than a highest hierarchy that the first video stream is configured to have when a frame rate changes according to an operation of service switching, wherein the highest hierarchy of the first video stream is within a previously allocated range; and
generate and transmit a container including the first video stream, the second video stream, and the table.