TRANSMISSION DEVICE, TRANSMISSION METHOD OF TRANSMISSION STREAM, AND PROCESSING DEVICE

• US 20160112731A1
• Filed: 05/15/2014
• Published: 04/21/2016
• Est. Priority Date: 06/07/2013
• Status: Active Grant

• Current Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TSUKAGOSHI, Ikuo
• Granted Patent: US 9,998,773 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04N 21/236 Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/23605 Creation or processing of packetized elementary streams [PES]
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/23892 involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
• CPC Class Codes: H04N 21/631 Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8455 involving pointers to the content, e.g. pointers to the I-frames of the video stream
• CPC Class Codes: H04N 21/85406 involving a specific file format, e.g. MP4 format

Abstract

A response time until initial presentation decreases in such cases as reception of a service and reproduction of reception data after accumulation of the reception data.

Identification information based on which a packet handled with priority is identifiable is inserted into each of transmission packets at the time of transmission of a transmission stream containing the transmission packets disposed successively in the transmission stream. For example, each of the transmission packets is a multilayered packet containing a multiplexed transport packet in the uppermost layer. For example, the identification information is inserted into packets in a part or all of layers of each of the multilayered packets.

Claims

1. A transmission device comprising:

a transmission unit that transmits a transmission stream containing transmission packets successively disposed in the transmission stream; and

an information insertion unit that inserts, into each of the transmission packets, identification information based on which a packet handled with priority is identifiable.

2. The transmission device according to claim 1, wherein each of the transmission packets is a multilayered packet containing a multiplexed transport packet in an upper layer.

3. The transmission device according to claim 2, wherein the information insertion unit inserts the identification information into packets in a part or all of layers of each of the multilayered packets.

4. The transmission device according to claim 3, wherein the information insertion unit inserts, into packets in a part or all of layers of each of the multilayered packets, identification information based on which a transmission packet handled with priority is identifiable when the corresponding multiplexed transport packet contains an access unit for random access.

5. The transmission device according to claim 3, wherein the information insertion unit inserts, into packets in a part or all of layers of each of the multilayered packets, identification information based on which a transmission packet handled with priority is identifiable when the corresponding multiplexed transport packet contains an access unit necessary for special reproduction.

6. The transmission device according to claim 2, wherein each of the transmission packets is a capsule layer packet obtained by encapsulating an IP packet containing the multiplexed transport packet in a payload.

7. The transmission device according to claim 6, wherein each of the transmission packets is a TLV packet or a GSE packet.

8. The transmission device according to claim 2, wherein each of the transmission packets is an IP packet containing the multiplexed transport packet in a payload.

9. The transmission device according to claim 2, wherein each of the multiplexed transport packets is an MMT packet, an RTP packet, or a FLUTE packet.

10. A transmission method of a transmission stream comprising:

transmitting a transmission stream containing transmission packets successively disposed in the transmission stream; and

inserting, into each of the transmission packets, identification information based on which a packet handled with priority is identifiable.

11. A processing device comprising an acquisition unit that acquires a transmission stream containing transmission packets successively disposed in the transmission stream, wherein

identification information based on which a packet handled with priority is identifiable is inserted into each of the transmission packets, and

the processing device further includes a processing unit that processes the acquired transmission stream.

12. The processing device according to claim 11, wherein

each of the transmission packets is a multilayered packet containing a multiplexed transport packet in an upper layer, and

the identification information is inserted into packets in a part or all of layers of each of the multilayered packets.

13. The processing device according to claim 12, wherein each of the transmission packets is a capsule layer packet obtained by encapsulating an IP packet containing the multiplexed transport packet in a payload.

14. The processing device according to claim 13, wherein each of the transmission packets is a TLV packet or a GSE packet.

15. The processing device according to claim 12, wherein each of the transmission packets is an IP packet containing the multiplexed transport packet in a payload.

16. The processing device according to claim 12, wherein each of the multiplexed transport packets is an MMT packet, an RTP packet, or a FLUTE packet.

17. The processing device according to claim 12, wherein

the acquisition unit receives the transmission stream via a predetermined transmission line, and

the transmission packet into which the identification information indicating a packet handled with priority is inserted includes the multiplexed transport packet containing an access unit for random access.

18. The processing device according to claim 17, wherein the predetermined transmission line is an RF transmission line or a communication network transmission line.

19. The processing device according to claim 12, wherein

the acquisition unit receives the transmission stream from an accumulation medium or a server in response to a reproduction command transmitted to the accumulation medium or the server, and

the transmission packet into which the identification information indicating a packet handled with priority is inserted includes the multiplexed transport packet containing an access unit necessary for special reproduction.