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

Patent metadata

Field	Value
Publication number	US-11812358-B2
Application number	US-202217839237-A
Country	US
Kind code	B2
Filing date	Jun 13, 2022
Priority date	Oct 21, 2014
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

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:
receiver circuitry configured to receive a broadcast signal, the broadcast signal including a flag, the flag indicating a presence or absence of first signaling data in the broadcast signal; and
control circuitry configured to:
detect the flag;
acquire the first signaling data from the broadcast signal, the first signaling data being transmitted in a first protocol layer of an Internet Protocol (IP) transmission system, the first signaling data including information indicating a location of second signaling data in the broadcast signal;
acquire the second signaling data from the broadcast signal based on the information included in the first signaling data, the second signaling data being transmitted in a second protocol layer of the IP transmission system, the first protocol layer being lower than the second protocol layer in a hierarchy of protocol of the IP transmission system; and
control an operation of the reception apparatus according to the first signaling data and the second signaling data.

2. The reception apparatus according to claim 1 , wherein the first signaling data includes:
first identification information for identifying a stream in the broadcast signal, and
second identification information for identifying a service.

3. The reception apparatus according to claim 1 , wherein:
the first signaling data includes information about an emergency alert; and
the control circuitry is further configured to perform an emergency alert operation according to the information about the emergency alert.

4. The reception apparatus according to claim 1 , wherein the second signaling data is text format data.

5. The reception apparatus according to claim 1 , wherein the broadcast signal includes a component, and the control circuitry is configured to reproduce the component based on the second signaling data.

6. The reception apparatus according to claim 5 , further comprising a display to display the component.

7. A reception method of a reception apparatus, the method comprising:
receiving, by receiver circuitry of the reception apparatus, a broadcast signal, the broadcast signal including a flag, the flag indicating a presence or absence of first signaling data in the broadcast signal;
detecting the flag by control circuitry of the reception apparatus;
acquiring, by control circuitry of the reception apparatus, the first signaling data from the broadcast signal, the first signaling data being transmitted in a first protocol layer of an Internet Protocol (IP) transmission system, the first signaling data including information indicating a location of second signaling data in the broadcast signal;
acquiring, by the control circuitry of the reception apparatus, the second signaling data from the broadcast signal based on the information included in the first signaling data, the second signaling data being transmitted in a second protocol layer of the IP transmission system, the first protocol layer being lower than the second protocol layer in a hierarchy of protocol of the IP transmission system; and
controlling, by the control circuitry of the reception apparatus, an operation of the reception apparatus according to the first signaling data and the second signaling data.

8. The reception method according to claim 7 , wherein the first signaling data includes first identification information for identifying a stream in the broadcast signal, and second identification information for identifying a service.

9. The reception method according to claim 7 , wherein the first signaling data includes information on an emergency alert, and the method further comprises:
performing an emergency alert operation according to the information on the emergency alert.

10. The reception method according to claim 7 , wherein the second signaling data is text format data.

11. The method according to claim 7 , wherein the broadcast signal includes a component, and the method further comprises reproducing the component based on the second signaling data.

12. The method according to claim 11 , wherein the method further comprises displaying the component.

13. A non-transitory computer-readable medium storing instructions which when executed by a processor of a reception apparatus cause the processor to perform a method comprising:
detecting a flag indicating a presence or absence of first signaling data from in a broadcast signal;
acquiring the first signaling data from the broadcast signal, the first signaling data being transmitted in a first protocol layer of an Internet Protocol (IP) transmission system, the first signaling data including information indicating a location of second signaling data in the broadcast signal;
acquiring the second signaling data from the broadcast signal based on the information included in the first signaling data, the second signaling data being transmitted in a second protocol layer of the IP transmission system, the first protocol layer being lower than the second protocol layer in a hierarchy of protocol of the IP transmission system; and
controlling operation of the reception apparatus according to the first signaling data and the second signaling data.

14. The non-transitory computer-readable medium according to claim 13 , wherein the first signaling data includes first identification information for identifying a stream in the broadcast signal, and second identification information for identifying a service.

15. The non-transitory computer-readable medium according to claim 13 , wherein the first signaling data includes information on an emergency alert, and the non-transitory computer-readable medium includes instructions which when executed by the processor of the reception apparatus cause the processor to perform the method further including performing an emergency alert operation according to the information on the emergency alert.

16. The non-transitory computer-readable medium according to claim 13 , wherein the second signaling data is text format data.

17. The non-transitory computer readable medium according to claim 13 , wherein the broadcast signal includes a component, and the method further comprises reproducing the component based on the second signaling data.

18. The non-transitory computer readable medium according to claim 17 , wherein the method further comprises displaying the component.

Assignees

• Saturn Licensing Llc

Inventors

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

Classifications

• H04W4/90 Primary

  Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] · CPC title

• H04H20/59

  for emergency or urgency · CPC title

• H04H20/95 Primary

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

• H04L1/0079

  Formats for control data (H04L1/16 takes precedence; training sequences H04L25/00 and H04L27/00) · CPC title

• H04N21/23614

  Multiplexing of additional data and video streams (arrangements for simultaneous broadcast of plural pieces of information H04H20/28) · CPC title