Transmitter, transmission method, receiver, reception method, and computer program

Patent metadata

Field	Value
Publication number	US-10271110-B2
Application number	US-201414908005-A
Country	US
Kind code	B2
Filing date	Jun 23, 2014
Priority date	Sep 18, 2013
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

Transmission of emergency alert information using a broadcasting service in an appropriate manner is achieved. A transmitter 200 (broadcasting station) inserts a wake-up signal as signaling of emergency alert information, describes information including a scale (category), type, occurrence time, and occurrence position of disaster, and version information as a message of emergency alert information, and transmits the message using a packet structure of a physical layer. A simple and inexpensive receiver 300 equipped with only a receiving antenna for broadcasting and a demodulator can receive the message of emergency alert information. An evacuation direction and a map or route to a shelter can be displayed using digital signage or streetlights, and an evacuation route can be instructed using streetlights.

First claim

The invention claimed is:

1. A transmitter, comprising:
one or more processors configured to:
acquire first information corresponding to one or more events;
insert, into signaling of the first information, second information that indicates to a receiver at least a presence of the first information;
insert, into the signaling of the first information, a level of the one or more events based on criticality of the one or more events in the acquired first information;
determine an extension header in a data link layer packet of the data link layer based on a setting of each of a plurality of header items in a plurality of headers of the data link layer packet;
store the signaling of the first information and a message of the first information in the determined extension header;
transmit, to the receiver, the signaling of the first information using the determined extension header of the data link layer packet; and
transmit, to the receiver, the signaling of the first information using a packet structure of a middleware layer, such that the receiver selects, based on the inserted level, which of the first information included in the extension header of the data link layer packet or the packet structure of the middleware layer to process,

wherein the first information includes emergency alert information, and the second information includes a wake-up indicator that indicates the presence of the emergency alert information.

2. The transmitter according to claim 1 ,
wherein the one or more processors are further configured to transmit a transmission frame in a broadcast channel assigned to a broadcasting station.

3. The transmitter according to claim 2 ,
wherein the one or more processors are configured to:
acquire broadcast content; and
transmit the acquired broadcast content using the packet structure of the middleware layer.

4. The transmitter according to claim 1 ,
wherein the inserted second information into the signaling of the first information
further indicates, based on a first operating mode of the receiver, a second operating mode in which the receiver is required to process the signaling and the message of the first information.

5. The transmitter according to claim 1 ,
wherein the one or more processors are further configured to insert into the signaling of the first information, at least one of a category, a type, an occurrence time, an occurrence position, or a scale of the one or more events.

6. The transmitter according to claim 1 ,
wherein the one or more processors are further configured to transmit the signaling and the message of the first information along with a broadcasting content.

7. A transmission method, comprising;
acquiring first information corresponding to one or more events;
inserting, using one or more processors, into signaling of the first information, second information that indicates to a receiver at least a presence of the first information;
inserting, into the signaling of the first information, a level of the one or more events based on criticality of the one or more events in the acquired first information;
determining an extension header in a data link layer packet of the data link layer based on a setting of each of a plurality of header items in a plurality of headers of the data link layer packet;
storing the signaling of the first information and a message of the first information in the determined extension header;
transmitting, to the receiver, the signaling of the first information using the determined extension header of the data link layer packet; and
transmitting, to the receiver, the signaling of the first information using a packet structure of a middleware layer, such that the receiver selects, based on the inserted level, which of the first information included in the extension header of data link layer packet or the packet structure of the middleware layer to process,
wherein the first information includes emergency alert information, and the second information includes a wake-up indicator that indicates the presence of the emergency alert information.

8. A receiver, comprising:
one or more processors configured to:
receive, from a transmitter, broadcasting content;
demodulate the received broadcasting content;
detect a presence of first information corresponding to one or more events in the demodulated broadcasting content;
detect a level of the one or more events in the demodulated broadcasting content, the level being inserted into signaling of the first information based on criticality of the one or more events; and
process, dependent on the detected level, either the first information included in an extension header of a data link layer packet, or the first information included in a packet structure of a middleware layer,

wherein the presence of the first information is indicated by at least second information, which is inserted by the transmitter into signaling of the first information, and
wherein the first information includes emergency alert information, and the second information includes a wake-up indicator that indicates the presence of the emergency alert information.

9. The receiver according to claim 8 ,
wherein the one or more processors are further configured to:
analyze the signaling of the first information stored in the extension header; and
display an emergency message based on a result of the analysis.

10. The receiver according to claim 9 ,
wherein the one or more processors are further configured to analyze the signaling of the first information including at least one of a category, a type, an occurrence time, an occurrence position, and a scale of the one or more events.

11. The receiver according to claim 8 ,
wherein the one or more processors are further configured to:
analyze a message of the first information stored in the extension header of a received data link packet; and
display an emergency message based on a result of the analysis.

12. The receiver according to claim 8 ,
wherein the one or more processors are further configured to:
acquire a first position information indicating a current position of the receiver; and
display an emergency message based on a result of analysis of the first information stored in the extension header and the first position information.

13. The receiver according to claim 12 ,
wherein the first information includes a second position information indicating a position of occurrence of at least one of the one or more events, and
wherein the one or more processors are further configured to:
determine a target area for an alert and an evacuation based on the second position information; and
display at least one of:
the emergency message of and an evacuation instruction based on the first position information, which is within the determined target area, or
the emergency message based on the first position information, which is outside the determined target area for the alert and the evacuation.

14. The receiver according to claim 8 , further comprising:
a power controller configured to control a power source in the receiver based on the second information.

15. A reception method, comprising:
demodulating broadcasting content received from a transmitter;
detecting a presence of first information corresponding to one or more events in the demodulated broadcasting content;
detecting a level of the one or more events in the demodulated broadcasting content, the level being inserted into signaling of the first information based on criticality of the one or more events; and
processing, using one or more processors, dependent on

Assignees

• Saturn Licensing Llc

Inventors

• Kitahara Jun
• Dewa Yoshiharu
• Hashimoto Katsunori

Classifications

• H04N21/237

  Communication with additional data server · CPC title

• G08G1/205

  Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental · CPC title

• H04N21/4882

  for displaying messages, e.g. warnings, reminders (arrangements for providing short real-time information to substation in data switching networks H04L12/1895) · CPC title

• G08B27/00

  Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations · CPC title

• H04N21/41415

  involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk · CPC title