Transmission device, transmission method, reception device, reception method, and computer program

Patent metadata

Field	Value
Publication number	US-2016234534-A1
Application number	US-201415023723-A
Country	US
Kind code	A1
Filing date	Jun 23, 2014
Priority date	Oct 2, 2013
Publication date	Aug 11, 2016
Grant date	—

Abstract

Reception processing of broadcast content, in transmission of which an IP system is employed, is performed. An SDPT, in a header extension part of which service identification information and an SDP are arranged, in an SSC is transmitted from a broadcasting station. On a reception side, it becomes possible to acquire an intended SDPT from signaling information SSC easily at high speed by performing section filtering processing with respect to a received transport stream. Then, it is possible to access a stream of an intended channel at high speed based on an IP address and a port number described in an SDP stored in a header extension part of the acquired SDPT.

First claim

1 . A transmission device applying an Internet protocol (IP) system to a transport layer and transmitting a broadcast signal in which a table (SDPT) of a service description protocol (SDP) is arranged in a service signaling channel (SSC) transmitted in a transport stream.

2 . The transmission device according to claim 1 , wherein the SDPT is written in a section form and service identification information and the SDP are arranged in a header extension part thereof.

3 . The transmission device according to claim 1 , wherein an IP address, a port number, and attribute information of each component of a broadcasting channel corresponding to service identification information are included in the SDP arranged in the SDPT.

4 . The transmission device according to claim 1 , wherein a display form of a program guide or program information of a broadcast is transmitted by utilization of an electronic service guide (ESG).

5 . The transmission device according to claim 4 , wherein an URI of the SDP is described in the ESG and the URI of the SDP is also described in the SDPT transmitted as the SSC.

6 . The transmission device according to claim 1 , wherein a bootstrap of the ESG is described in signaling acquired on a reception side during initial scanning.

7 . A transmission method comprising:
applying an IP system to a transport layer; and transmitting a broadcast signal in which an SDPT is arranged in an SSC transmitted in a transport stream.

8 . A reception device configured to receive a broadcast signal in which an IP system is applied to a transport layer, the reception device comprising:
a control signal processing unit configured to process a control signal included in the broadcast signal; and a stream processing unit configured to process a stream of each component of a broadcast program, wherein the control signal processing unit performs section filtering processing with respect to a received transport stream and acquires an intended SDPT from an SSC, and the stream processing unit processes a stream of an intended channel based on an IP address and a port number described in an SDP stored in a header extension part of the acquired SDPT.

9 . The reception device according to claim 8 , further comprising a low layer control signal processing unit configured to perform processing of a low layer of the broadcast signal, and a recording unit configured to record data, wherein the low layer control signal processing unit performs initial scanning, acquires signaling including a bootstrap of an ESG, and records the signaling into the recording unit.

10 . The reception device according to claim 9 , further comprising an ESG processing unit configured to process the ESG,
wherein in a case of performing a display of the ESG, the control signal processing unit acquires a bootstrap of the ESG from the signaling recorded in the recording unit, and the ESG processing unit acquires a file of the ESG based on the bootstrap.

11 . The reception device according to claim 10 , wherein the control signal processing unit specifies, in a case of referring to the SDP in the ESG, a corresponding SDPT from the SSC based on an URI of the SDP described in the ESG and acquires the SDP from the SDPT.

12 . A reception method of receiving a broadcast signal in which an IP system is applied to a transport layer, comprising the steps of:
performing section filtering processing with respect to a received transport stream and acquiring an intended SDPT from an SSC; and processing a stream of an intended channel based on an IP address and a port number described in an SDP stored in a header extension part of the acquired SDPT, the processing being performed by a stream processing unit.

13 . A computer program described in a computer-readable form in such a manner that a computer is made to function as a reception device to receive a broadcast signal in which an IP system is applied to a transport layer, the computer program causing the computer to function as a control signal processing unit configured to process a control signal included in the broadcast signal and a stream processing unit configured to process a stream of each component of a broadcast program,
wherein the control signal processing unit performs section filtering processing with respect to a received transport stream and acquires an intended SDPT from an SSC, and the stream processing unit processes a stream of an intended channel based on an IP address and a port number described in an SDP stored in a header extension part of the acquired SDPT.

Assignees

• Sony Corp

Inventors

• Kitahara Jun
• Kitazato Naohisa

Classifications

• H04H60/72

  using electronic programme guides [EPG] (focusing on identifying broadcast space time H04H60/39 {; menu type display of EPG in television receivers H04N21/47}) · CPC title

• H04N21/64322

  IP · CPC title

• H04N21/6112

  involving terrestrial transmission, e.g. DVB-T · CPC title

• H04H60/37

  for identifying segments of broadcast information, e.g. scenes or extracting programme ID · CPC title

• H04N21/2362 Primary

  Generation or processing of Service Information [SI] · CPC title