Transmitting apparatus, transmitting method, receiving apparatus, and receiving method

• US 10,462,502 B2
• Filed: 11/09/2015
• Issued: 10/29/2019
• Est. Priority Date: 11/21/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Tsukagoshi, Ikuo
• Primary Examiner(s): Sheleheda, James R
• Application Number:
  US15/514,718
• Publication Number:
  US 20170238023A1
• Time in Patent Office: 1,450 Days
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 2212/00 Encapsulation of packets
• CPC Class Codes: H04L 47/31 by tagging of packets, e.g. using discard eligibility [DE] bits
• 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 65/612 for unicast
• 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: H04L 65/70 Media network packetisation
• 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 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/2393 involving handling client requests scheduling or organising the servicing of application requests H04L67/60

Abstract

Selective processing of media data is facilitated on a receiving side.

A transmission stream in which transmission packets are consecutively disposed is transmitted. Each transmission packet includes a multiplexed transport packet having media data in an upper layer. Identification information representing a kind of media data included in the transmission packet is inserted into the transmission packet. The transmission packet including desired media data is easily recognized and selectively processed on a receiving side.

Claims

1. A transmitting apparatus, comprising:

a transmitter configured to transmit a transmission stream in which transmission packets are consecutively disposed, each transmission packet including a multiplexed transport packet having media data in an upper layer; and

a controller configured to insert identification information into a lower layer of each transmission packet, the identification information identifying a kind of media data included in the multiplexed transport packet of the respective transmission packet,

wherein the kind of the media data includes one of audio data of different qualities, video data of different resolutions, or combinations of video and audio data of different resolutions and qualities, and

wherein the controller is configured to select one of a plurality of different modulation methods for transmission of a transmission packet based on the kind of the media data identified by the identification information in the lower layer of the transmission packet.

2. The transmitting apparatus according to claim 1, wherein

the transmitter selectively assigns each of different kinds of media data to a corresponding one of the plurality of different modulation methods,

wherein

the transmitter transmits the transmission packets that have been consecutively disposed by modulating the transmission packets using one or more of the plurality of different modulation methods.

3. The transmitting apparatus according to claim 2, wherein

the media data included in the multiplexed transport packets are modulated by changing to a different modulation method according to the kind of the media data included in the respective multiplexed transport packet,

wherein the kind of the media data is media data that can be reproduced by a respective kind of receiving device.

4. The transmitting apparatus according to claim 3, wherein the kind of the media data includes one of High Definition (HD) video and average audio, ultra-high definition video and greater than average quality audio, scalable extension component of HD and greater than average quality audio, scalable extension component of HD, greater than average quality audio, and scalable extension component.

5. The transmitting apparatus according to claim 1, wherein

each transmission packet is a packet of an encapsulated layer obtained by encapsulating an IP packet including the multiplexed transport packet in payload.

6. The transmitting apparatus according to claim 5, wherein

each transmission packet is a GSE packet or a TLV packet.

7. A transmitting method, comprising:

transmitting a transmission stream in which transmission packets are consecutively disposed, each transmission packet including a multiplexed transport packet having media data in an upper layer; and

inserting identification information into a lower layer of each transmission packet, the identification information identifying a kind of media data included in the multiplexed transport packet of the respective transmission packet,

wherein the kind of the media data includes one of audio data of different qualities, video data of different resolutions, or combinations of video and audio data of different resolutions and qualities, and

the method further comprising selecting one of a plurality of different modulation methods for transmission of a transmission packet based on the kind of the media data identified by the identification information in the lower layer of the transmission packet.

8. A receiving apparatus, comprising:

a receiver configured to receive a transmission stream in which transmission packets are consecutively disposed, each transmission packet including a multiplexed transport packet having media data in an upper layer, wherein at least one kind of the media data among different kinds of the media data are received using one or more of a plurality of different modulation methods, the one or more modulation methods being selected based on the kind of the media data included in a transmission packet and identified by identification information in a lower layer of the transmission packet, wherein

the receiving apparatus further comprises;

a controller configured to process the transmission stream by selecting for a given modulation method one kind of media data among the different kinds in accordance with the identification information among the transmission packets when the transmission stream is received,

wherein the kind of the media data includes one of audio data of different qualities, video data of different resolutions, or combinations of video and audio data of different resolutions and qualities.

9. The receiving apparatus according to claim 8, wherein

the controller selectively takes in and processes, in a buffer, payload data of each transmission packet into which the identification information identifying the selected one kind of the media data is inserted among the transmission packets included in the received transmission stream.

10. The receiving apparatus according to claim 8, wherein

each transmission packet is a packet of an encapsulated layer obtained by encapsulating an IP packet including the multiplexed transport packet in payload.

12. The receiving apparatus of claim 8, wherein the kind of the media data depends on a kind of the receiving apparatus.

13. The receiving apparatus of claim 12, wherein the kind of receiving apparatus is a mobile apparatus and the kind of the media data is a kind that can be reproduced by the mobile apparatus.

14. The receiving apparatus of claim 12, wherein the kind of the receiving apparatus is a stationary receiver and the kind of the media data is a kind that can be reproduced by the stationary receiver.

11. The receiving apparatus according to claim wherein

each transmission packet is a GSE packet or a TLV packet.

15. A receiving method, comprising:

receiving, by a receiving unit, a transmission stream in which transmission packets are consecutively disposed, each transmission packet including a multiplexed transport packet having media data in an upper layer, wherein at least one kind of the media data among different kinds of the media data are received using one or more of a plurality of different modulation methods, the one or more modulation methods being selected based on the kind of the media data included in a transmission packet and identified by identification information in a lower layer of the transmission packet, wherein

the receiving method further comprises;

processing the transmission stream by selecting for a given modulation method one kind of media data among the different kinds in accordance with the identification information among the transmission packets when the transmission stream is received,

wherein the kind of the media data includes one of audio data of different qualities, video data of different resolutions, or combinations of video and audio data of different resolutions and qualities.