Reception apparatus, reception method, transmission apparatus, and transmission method

Patent metadata

Field	Value
Publication number	US-10356592-B2
Application number	US-201815992971-A
Country	US
Kind code	B2
Filing date	May 30, 2018
Priority date	Oct 21, 2014
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

There is provided a reception apparatus including a first acquisition unit which acquires, preceding text format second signaling data to be transmitted in a lower-level layer than an IP layer in a hierarchy of a protocol of an IP transmission system and containing control information independent of a service identified by an IP address, binary format first signaling data containing a flag indicating whether the second signaling data exists in digital broadcast using the IP transmission system, a second acquisition unit which acquires the second signaling data on the basis of the first signaling data, and a control unit which controls operation of the units which perform various types of processing on the basis of the second signaling data. The present technology can be applied to, for example, a television receiver.

First claim

The invention claimed is:

1. A reception apparatus comprising:
receiving circuitry configured to:
acquire a first signaling data from a broadcast wave, the first signaling data being transmitted in a first protocol layer of a protocol of an internet protocol (IP) transmission system, the first signaling data including information indicating a location of a second signaling data in the broadcast wave; and
acquire the second signaling data from the broadcast wave on the basis of the information included in the first signaling data, the second signaling data being transmitted in a second protocol layer of the protocol of the IP transmission system, and the first protocol layer being lower than the second protocol layer in a hierarchy of the protocol of the IP transmission system,
wherein the second signaling data includes control information independent of a service identified by an IP address, and
wherein the second signaling data is transmitted for every physical channel in the broadcast wave; and

control circuitry configured to control an operation of the receiving circuitry.

2. The reception apparatus according to claim 1 , wherein the first signaling data includes first identification information for identifying a physical channel in the broadcast wave, second identification information for identifying a stream in which the second signaling data is transmitted, and third identification information for identifying the service.

3. The reception apparatus according to claim 1 , wherein
the first signaling data includes emergency alert system (EAS) information, and
the second signaling data includes emergency alerting description (EAD) information.

4. A reception method of a reception apparatus, the method comprising:
acquiring, by receiving circuitry of the reception apparatus controlled by control circuitry of the reception apparatus, a first signaling data from a broadcast wave, the first signaling data being transmitted in a first protocol layer of a protocol of an internet protocol (IP) transmission system, the first signaling data including information indicating a location of a second signaling data in the broadcast wave; and
acquiring, by the receiving circuitry of the reception apparatus controlled by the control circuitry of the reception apparatus, the second signaling data from the broadcast wave on the basis of the information included in the first signaling data, the second signaling data being transmitted in a second protocol layer of the protocol of the IP transmission system, and the first protocol layer being lower than the second protocol layer in a hierarchy of the protocol of the IP transmission system,
wherein the second signaling data includes control information independent of a service identified by an IP address, and
wherein the second signaling data is transmitted for every physical channel in the broadcast wave.

5. The reception method according to claim 4 , wherein the first signaling data includes first identification information for identifying a physical channel in the broadcast wave, second identification information for identifying a stream in which the second signaling data is transmitted, and third identification information for identifying the service.

6. The reception method according to claim 4 , wherein
the first signaling data includes emergency alert system (EAS) information, and
the second signaling data includes emergency alerting description (EAD) information.

Assignees

• Sony Corp

Inventors

• Takahashi Kazuyuki
• Kitazato Naohisa
• Kitahara Jun
• Yamagishi Yasuaki

Classifications

• H04N21/2381

  Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network {(transmission of MPEG streams over ATM H04L12/5601)} · CPC title

• H04N21/2343

  involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements {(video transcoding H04N19/40; media packet handling at the source H04L65/762)} · CPC title

• H04H20/95 Primary

  characterised by a specific format, e.g. an encoded audio stream · CPC title

• H04N21/814

  comprising emergency warnings (arrangements specially adapted for emergency or urgency in broadcast systems H04H20/59; arrangements for providing alarms, notifications, alerts to substation in data switching networks H04L12/1895) · CPC title

• H04N21/4382

  Demodulation or channel decoding, e.g. QPSK demodulation (analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002) · CPC title