CN1592368A - Broadcast receiver and its method - Google Patents

Abstract

The present invention provides a broadcast receiving device and method that enable a user to make an appropriate judgment when receiving an emergency alarm broadcast. In a broadcast receiving device such as a set-top box (10) capable of receiving an emergency alarm broadcast, when the tuner unit (12) detects an emergency alarm broadcast via the receiving antenna (11) in a standby state, the notification control unit (16) The detection signal of the broadcast makes the notification device (17) work, and at the same time displays on the display device (19) as characters "received the emergency warning broadcast" stored in the memory (18) for explaining the situation of the so-called detection of the emergency warning broadcast , "Please turn on the TV power" and other messages.

Description

Broadcast receiving device and method

technical field

The present invention relates to a broadcast receiving device and method, in particular to a broadcast receiving device and method capable of receiving emergency warning broadcasts.

Background technique

BS (Broadcasting Satellite) digital broadcasting started in December 2000. Also, terrestrial digital broadcasting is scheduled to begin in December 2003. In the application of these digital broadcasts, a so-called Emergency Warning Broadcasting System (Emergency Warning System; EWS) is defined.

In the emergency warning broadcast system, by assuming a major disaster related to human suffering such as a major earthquake or tsunami, the start of the broadcasted emergency warning broadcast is notified to the transmitting and receiving device, so that the broadcast receiving device in the standby state can automatically Start and receive broadcast.

In ARIB (Association of Radio Industries and Businesses) STD-B21, which is a receiver standard for digital broadcasting, it is described that it is desired to notify the user through a buzzer or LED (Light Emitting Diode) when an emergency alarm broadcast of digital broadcasting is received. . 9 is a configuration of an example of a set top box (set top box) having a detection function of a conventional emergency alarm broadcast.

A tuner unit 92 of a set-top box (hereinafter appropriately referred to as STB) 90 receives a digital broadcast signal via a receiving antenna 91, performs amplification, frequency conversion, filtering, etc., and supplies it to a demodulation unit 93 as an intermediate frequency (IF; Intermediate Frequency). The demodulation section 93 demodulates/decodes the modulated wave of the intermediate frequency supplied from the tuner section 92, extracts signals related to the clock, demultiplexes necessary timing signals, etc., and provides the data obtained by demodulation/decoding to the playback control unit 94. The reproduction control section 94 applies processing such as de-interleave (de-interleave) and error correction to the decoded data supplied from the demodulation section 93 and supplies the decoded transport stream to the decoding section 95 . The decoding unit 95 demultiplexes and demultiplexes the transport stream supplied from the playback control unit 94 , and outputs the demultiplexed decoded data such as video and audio.

The set-top box 90 having the emergency alarm broadcast detection function performs demodulation/decoding processing by the demodulator 93 even in the standby state, and monitors the detection of the emergency alarm broadcast activation flag. When the demodulation unit 93 detects the flag for activating the emergency warning broadcast, it supplies the detection signal of the emergency warning broadcast to the notification control unit 96 . The notification control unit 96 generates a control signal for the notification device 97 based on the detection signal of the emergency alarm broadcast provided by the demodulation unit 93 , and supplies it to the notification device 97 . The notification device 97 operates according to a control signal supplied from the notification control unit 96 . That is, the buzzer 97a sounds. Or LED97b emits light. Moreover, the buzzer 97a and LED97b can be used simultaneously.

By utilizing the emergency warning broadcasting system in various forms, it is expected that the destruction of the disaster can be suppressed to a minimum. Patent Document 1 below describes a broadcast receiving device that automatically connects to a telephone line and broadcasts an audio signal of an emergency alarm broadcast to a mobile phone.

[Patent Document 1] JP-A-2001-211441

However, in the broadcast receiving device using the emergency warning broadcast system as described above, there is a problem that it is difficult for the user to instantly determine what happened when an emergency warning broadcast is detected, and it is difficult to take appropriate action. For example, in a television receiver (hereinafter appropriately referred to as TV) having an image display device, the tube surface can be automatically illuminated to display an emergency warning broadcast. In a broadcast receiving device such as an STB of an image display device, it is difficult for the user to grasp what is happening just by the buzzer beeping and the LED emitting light while suddenly going to bed or the like.

Furthermore, when other equipment such as a mobile phone is controlled by the detection signal of the emergency alarm broadcast, since the other equipment is automatically controlled, there is a problem that the user cannot grasp what kind of control is performed on the other equipment.

Contents of the invention

Therefore, an object of the present invention is to provide a broadcast receiving device and method that enable a user to make an appropriate judgment when an emergency alarm broadcast is detected.

In order to achieve the above object, the first aspect of the present invention provides a broadcast receiving device capable of receiving an emergency warning broadcast, and when an emergency warning broadcast is detected, a notification part is activated and a message explaining the situation is presented.

In addition, the sixth aspect of the present invention provides a broadcast receiving device capable of receiving emergency alarm broadcasts, including: a connecting part connected to other equipment; and a control part that operates the notification part and outputs control Through the control signals of other devices connected to the connection part, the device prompts a message explaining the control status of other devices of the control part.

In this invention, when an emergency alarm broadcast is detected, the user can grasp the situation without being confused because the notification means operates while explaining the situation through a message.

According to the present invention, the user can easily grasp the situation without being confused when an emergency warning broadcast is detected, so that the user can make an appropriate judgment when receiving the emergency warning broadcast.

Description of drawings

FIG. 1 is a schematic diagram showing the outline of the structure of a TS header used in digital broadcasting to which the present invention is applicable.

FIG. 2 is an outline diagram showing the structure of a frame used in digital broadcasting to which the present invention is applicable.

FIG. 3 is an outline diagram showing the structure of a superframe used in digital broadcasting to which the present invention is applicable.

4 is a schematic outline diagram showing the configuration of an example of the broadcast receiving device according to the first embodiment of the present invention.

5 is a schematic outline diagram showing the configuration of an example of a broadcast receiving device according to a second embodiment of the present invention.

6 is a schematic diagram showing outlines of a broadcast receiving device and a television receiver for illustrating a third embodiment of the present invention.

7 is a schematic diagram showing outlines of a broadcast receiving device and a mobile phone for explaining a fourth embodiment of the present invention.

Fig. 8 is a schematic diagram showing outlines of a broadcast receiving device and a gas-using facility for explaining a fifth embodiment of the present invention.

FIG. 9 is a schematic outline diagram showing the configuration of an example of a conventional broadcast receiving device.

Detailed ways

The present invention is based on ARIB STD-B21, which is the main digital broadcasting receiver standard, notifying the user of the reception of the desired emergency alarm broadcasting through the buzzer and LED, and directly explaining the situation to the user through a message.

First, before describing the embodiments of the present invention, the transport stream defined in the MPEG (Moving Picture Experts Group) 2 System (ISO/IEC138 memory 181) applicable to the present invention (hereinafter appropriately referred to as MPEG-TS ) based on the outline of the multiplexed signal format will be described.

In MPEG-TS, program arrangement information (PSI (Program Specific Information)/SI (Service information), image/sound TV broadcast, subtitle/character overprint, data broadcast, etc. are provided as multimedia services. Real-time audiovisual TV broadcast and Subtitle/character superimposed data is transmitted in PES (Packetized Elementary System) packets, and EPG and data broadcasting stored and reproduced in the receiving device are transmitted in sections.

PSI is data used to make complex program selection actions possible in digital broadcasting, and consists of four tables: PAT (Program Association Table), PMT (Program Map Table), NIT (Network Information Table), and CAT (Conditional Access Table) .

The PAT defines information on a service (program) group currently being broadcast in a transport stream. The PMT defines information of a group of components constituting a service. The PMT has an emergency alert broadcast descriptor as information arbitrarily described. The emergency warning broadcast descriptor describes emergency warnings such as earthquake warning explanations, tsunami warnings, emergency warning levels, and emergency warning broadcast target areas during emergency warning broadcasts or emergency warning signal tests in this service or services within the same transport stream. Details. For example, "1" is written in "start_end_flag" during an emergency warning broadcast, and "0" is written in "start_end_flag" when the emergency warning broadcast has ended. NIT defines the logical structure information between network transport stream services. The CAT defines a PID (packet identifier) of a TS packet that stores program information and contract information related to limited reception. The TS packet will be described later.

SI is data for constructing information as a user interface for the viewer to select a program.

A plurality of PES packets and segments are multiplexed in fixed-length TS packet units to form an MPEG-TS. MPEG-TS is a sequence of consecutive TS packets.

FIG. 1 shows the structure of an example of a TS packet. A TS packet is composed of 188 bytes. The first 4 bytes are called the header. The first byte of the header is a sync byte indicating the beginning of the TS packet. In the header, in addition to the synchronization byte, information specifying the PID and the nature of the packet, etc. are described.

The 184 bytes concatenated with the header are an application field and/or a payload, ie, a data area. The application field stores data such as images and sounds, and the payload stores PSI. Depending on the information recorded in the header, the distinction is between the application field and the payload.

By implementing transmission path coding in MPEG-TS, hierarchical transmission using multiple modulation methods at the same time is possible, and multiple broadcasters can operate independently on one repeater. Hereinafter, an overview of channel coding will be described by taking channel coding in BS digital broadcasting as an example.

In transmission channel coding of BS digital broadcasting, MPEG-TS from multiple broadcasters are combined into one signal in units of so-called frames. FIG. 2 shows a frame as a basic transmission unit of transmission path coding. A frame is composed of 48 slots (slot #1 to slot #48). A slot is composed of 204 bytes after adding 16 bytes of Reed/Solomon error correction outer code to the 188-byte TS packet constituting the above-mentioned MPEG-TS.

A frame synchronization signal and TMCC information are assigned to the first byte (sync byte in TS packet) of slot #1 to slot #12. The frame preamble is allocated in the first byte of time slot #1 and #2, the TMCC information is allocated in the first byte of time slot #3~time slot #10, and the TMCC information is allocated in time slot #11 and time slot #12 The frame postamble is allocated in the first byte of the A slot is the smallest unit for distinguishing modulation schemes and multiple MPEG-TSs, and the modulation scheme, transport stream number, etc. for each slot are described in TMCC information, and demodulation is possible.

The frame signal is processed by energy diffusion and interleaving in the superframe period. Fig. 3 shows the structure of a superframe. A superframe is constituted by 8 frames (frame #1 to frame #8). In slot #1 to slot #12 of each frame, a frame synchronization signal and TMCC information are added as described above, and inner code error correction and modulation are performed. Reed/Solomon (64, 48) is allocated as TMCC parity in slot #3 to slot #10 of frame #7 and frame #8. Therefore, TMCC consists of 8*6=48 bytes, that is, 384 bits.

As described above, information such as a modulation scheme and a transport stream number for each slot is described in the TMCC. The broadcast receiving device first acquires TMCC information, demodulates radio waves, and selects a transport stream to receive. BS digital broadcasting uses multiple modulation methods, and modulates the transport stream with 8PSK (Phase Shift Keying), QPSK (Quadrature Phase Shift Keying), etc., but because TMCC information is important information, in the modulation method of sending TMCC, Use BPSK (Binary Phase Shift Keying), which is lower than these 8PSK and QPSK, and has stronger anti-rainfall and noise performance.

An emergency alarm broadcast activation mark notifying the start of the emergency alarm broadcast is provided at a predetermined position of the TMCC. The emergency alert broadcast start flag is set to "1" when the emergency alert broadcast is started or the emergency alert broadcast test is being performed, and remains "1" while the emergency alert broadcast is being broadcast or is being tested.

The emergency warning broadcast system of TS digital broadcasting is realized by the emergency warning broadcast starting flag of TMCC and the above-mentioned emergency warning broadcast descriptor of PMT. When the broadcaster starts emergency alert broadcasting, he sets and transmits conditions such as "start_end_flag", type of earthquake, tsunami, etc., and area symbol in the emergency alert broadcast descriptor of PMT, and sets the emergency alert broadcast start flag of TMCC as " 1" to send out. Then, start the emergency alert broadcast. When the emergency alert broadcast ends, the broadcaster transmits the emergency alert broadcast activation flag of TMCC as "0", and deletes the emergency alert broadcast descriptor from the PMT.

Also, in terrestrial digital broadcasting, although the transmission path encoding method is different from BS digital broadcasting, the structure of the emergency warning broadcasting system using TMCC emergency warning broadcast activation flags and the like is the same as in the case of the above-mentioned BS digital broadcasting.

Hereinafter, a broadcast receiving device capable of receiving an emergency alarm broadcast according to an embodiment of the present invention will be described. First, a broadcast receiving device according to a first embodiment of the present invention will be described. FIG. 4 is an example of a broadcast receiving device according to the first embodiment of the present invention.

The tuner unit 12 of the STB 10 as a broadcast receiving device receives a digital broadcast signal via the receiving antenna 11 , performs amplification, frequency conversion, filtering, etc., and supplies it to the demodulation unit 13 as an intermediate frequency signal. The demodulation section 13 demodulates/decodes the modulated wave of the intermediate frequency supplied from the tuner section 12, and after extracting clock-related signals and timing signals necessary for demultiplexing, provides the data obtained by demodulation/decoding. to the playback control unit 14.

The playback control unit 14 applies processing such as deinterleaving and error correction to the decoded data supplied from the demodulation unit 13 , and supplies the decoded transport stream to the decoding unit 15 . The decoding unit 15 demultiplexes the transport stream supplied from the playback control unit 14 , and outputs the demultiplexed decoded data such as video and audio.

The STB10 has an emergency alarm broadcast detection function, and even in the standby state in which the main power supply is assumed to be off, the demodulation/decoding process of the demodulator 13 can be performed by the standby power supply, and the emergency alarm broadcast activation flag that notifies the start of the emergency alarm broadcast can be monitored. detection. When the demodulator 13 detects the flag for activating the emergency alarm broadcast, it supplies the detection signal of the emergency alarm broadcast to the notification control unit 16 .

The notification control unit 16 generates a control signal of the notification device 17 based on the detection signal of the emergency alarm broadcast provided by the demodulation unit 13 and supplies it to the notification device 17 . The notification device 17 operates according to a control signal supplied from the notification control unit 16 . That is, the warning devices 17a such as a buzzer or an alarm sound. And the light emitter 17b, such as an LED and a lamp, emits light. Furthermore, the alarm 17a and the light emitter 17b may be used simultaneously.

The memory 18 is, for example, a nonvolatile memory. A message describing a situation in which an emergency alert broadcast is detected, such as "emergency alert broadcast detected", is stored as character data. The character data is data for forming a message as characters.

The notification control unit 16 controls the notification device 17 based on the detection signal of the emergency alarm broadcast provided by the demodulation unit 13 , and presents the character data stored in the memory 18 on the display device 19 . The display device 19 is a device capable of displaying characters, and is a liquid crystal display, an electro-optic panel, or the like. The display device 19 displays the input character data as characters.

The emergency warning broadcast descriptor describing the detailed information of the emergency warning is read from the decoded data decoded by the demodulation unit 13, and the message explaining the detection of the emergency warning broadcast can be specifically set as "an earthquake warning statement has been issued.", "Tsunami warning issued." etc. Furthermore, an operation procedure for viewing and listening to an emergency alarm broadcast, such as "Please turn on the TV.", may be included in the message.

As described above, with the set-top box 10 according to the first embodiment of the present invention, when an emergency alarm broadcast is detected in the standby state, the notification device 17 is activated, and at the same time, the display device 19 is displayed as characters to illustrate the so-called detection The status message of the emergency warning broadcast can notify the user of the detection of the emergency warning broadcast, and can prevent the user from being confused by the sudden operation of the notification device 17 .

Furthermore, by reading the emergency alarm broadcast descriptor describing the detailed information of the emergency alarm from the decoded data decoded by the demodulation unit 13, and displaying a message on the display device 19 based on the read data, the user can judge whether an alarm such as an earthquake or a tsunami is serious. species, appropriate action can be taken as early as possible.

Furthermore, by including the operation procedure for viewing the emergency warning broadcast in the message displayed on the display device 19, the user can be reliably notified of the operation procedure for receiving the emergency warning broadcast, and the user can be guided to view and listen to the emergency warning broadcast easily.

Therefore, with the broadcast receiving device of the first embodiment, when an emergency alarm broadcast is detected, it is possible for the user to make an appropriate judgment.

Next, a broadcast receiving device according to a second embodiment of the present invention will be described. The first embodiment described above displays messages as characters. The second embodiment is to output the message as sound.

5 is an example of a set-top box for digital broadcast reception according to a second embodiment of the present invention. Furthermore, the receiving antenna 21 and the tuner unit 22, the demodulation unit 23, the reproduction control unit 24, the decoding unit 25, and the notification device 27 (alarm 27a, light emitter 27b) constituting the STB 20 are respectively described in the above-mentioned first embodiment. The receiving antenna 11 is the same as the tuner unit 12, demodulation unit 13, reproduction control unit 14, decoding unit 15, and notification device 17 (alarm 17a, light emitter 17b) constituting the STB 10, so description thereof is omitted.

The memory 28 is, for example, a nonvolatile memory. A message for explaining the situation that the emergency alarm broadcast was detected, such as "Emergency alarm broadcast detected", is stored as voice data. The voice data is data for forming a message as voice.

From the decoded data decoded by the demodulator 23, the emergency warning broadcast descriptor describing the detailed information of the emergency warning can be read, and the message describing the detection of the situation of the emergency warning broadcast can be specifically set as "an earthquake warning instruction has been issued", "an A tsunami warning has been issued”, etc. In addition, the message may include an operation procedure for viewing and listening to an emergency alarm broadcast, such as "please turn on the TV."

The notification control part 26 generates the control signal of the notification device 27 according to the detection signal of the emergency alarm broadcast provided by the demodulation part 23 and provides it to the notification device 27 to control the notification device 27, and simultaneously uses the sound output device 29 to prompt the sound data stored in the memory 28 . The sound output device 29 is constituted by a speaker capable of outputting sound or the like. The audio output device 29 outputs the input audio data as audio.

As described above, with the set-top box 20 according to the second embodiment of the present invention, when the emergency alarm broadcast is detected in the standby state, the notification device 27 is activated, and at the same time, the sound output device 29 outputs the sound for explaining the so-called The detection of the situation of the emergency warning broadcast can notify the user of the detection of the emergency warning broadcast, and can prevent the user from being confused by the sudden operation of the notification device 27 .

Furthermore, by reading the emergency alarm broadcast descriptor describing the detailed information of the emergency alarm from the decoded data decoded by the demodulation unit 23, and displaying a message on the voice output device 29 based on the read data, the user can judge whether an earthquake, a tsunami, etc. The types of alerts that allow for early appropriate action.

Furthermore, by including the operation procedure for viewing and listening to the emergency warning broadcast in the message displayed on the voice output device 29, the user can be reliably notified of the operation procedure when receiving the emergency warning broadcast, and can guide the user to easily view and listen to the emergency warning broadcast. .

Therefore, with the broadcast receiving device of the second embodiment, when an emergency alarm broadcast is detected, it is possible for the user to make an appropriate judgment. Furthermore, by disposing the memory 18 (which may also be the same as the memory 28) and the display device 19 described in the above-mentioned first embodiment in the set-top box 20, and combining with the first embodiment, the message can be output by sound and characters. Further, the user is allowed to make an appropriate judgment.

In the above-mentioned first and second embodiments, each display device 19 and sound output device 29 are controlled according to the detection signal of the emergency warning broadcast, but the embodiment described below controls the connection with the set-top box according to the detection signal of the emergency warning broadcast. other devices.

First, a broadcast receiving device according to a third embodiment of the present invention will be described. FIG. 6 is an example of a digital broadcast receiving set-top box according to a third embodiment of the present invention. Furthermore, since the receiving antenna 31 and the tuner unit 32, the demodulation unit 33, the playback control unit 34, the decoding unit 35, and the notification device 37 (alarm 37a, light emitter 37b) constituting the STB 30 are respectively described with respect to the first embodiment described above, The receiving antenna 11, tuner unit 12, demodulation unit 13, playback control unit 14, decoding unit 15, and notification device 17 (warning device 17a, light emitter 17b) are the same, and therefore description thereof will be omitted.

The notification control unit 36 controls the notification device 37 by generating a control signal of the notification device 37 based on the detection signal of the emergency warning broadcast provided by the demodulation unit 33 and providing it to the notification device 37. The control signal of the detection signal is supplied to the TV control unit 38 .

The TV control unit 38 controls the television receiver 39 , which is controllably connected from the set-top box 30 via the connection unit 40 , based on the emergency alarm broadcast control signal supplied from the notification control unit 36 . For example, when the TV receiver 39 is powered off, the TV control unit 38 controls to turn it on. Also for example: the channel of the television receiver 39 can also be automatically switched to the channel of the input television signal from the set-top box 30 while adjusting the volume or the like. The connection unit 40 connecting the TV control unit 38 and the television receiver 39 may be directly connected by a cable, or may be indirectly connected via a network such as a LAN (Local Area Network) or the Internet. In addition, the connection is not limited to a wired method, and a wireless method using radio waves, infrared rays, or the like may be used for connection.

As described above, with the set-top box 30 according to the third embodiment of the present invention, when an emergency alarm broadcast is detected in the standby state, the notification device 37 is activated, and the television receiver 39 connected through the connection part 40 can be controlled simultaneously. The optimal emergency warning broadcast can be automatically received by the television receiver 39, the user's confusion caused by the sudden operation of the notification device 37 can be prevented, and the user can be guided to view and listen to the emergency warning broadcast easily.

Therefore, with the broadcast receiving device of the third embodiment, when an emergency alarm broadcast is detected, it is possible for the user to make an appropriate judgment. Furthermore, by disposing the memory 18 and the display device 19 described in the above-mentioned first embodiment in the set-top box 30, combining with the first embodiment, and outputting a message on the display device 19 by characters, by disposing the memory 18 and the display device 19 in the set-top box 30 The memory 28 and the voice output device 29 described in the above-mentioned second embodiment are combined with the second embodiment, and a message is output to the voice output device 29 by voice, so that the user can further make an appropriate judgment. Of course, it can also be combined with the first and second embodiments to output messages through both characters and sounds.

Furthermore, at this time, the memory 18 or the memory 28 stores in advance "the power of the TV is turned on.", "The emergency alarm broadcast is being broadcast.", etc. are used to explain the control status of the television receiver 39 as other connected devices. When the TV receiver 39 is controlled, by outputting the message of the control status, even in the case of suddenly turning on the power of the TV receiver 39, the user can be informed of the situation as soon as possible, and the user's confusion can be prevented.

Next, a broadcast receiving device according to a fourth embodiment of the present invention will be described. FIG. 7 is an example of a set-top box for receiving digital broadcasting according to a fourth embodiment of the present invention. Furthermore, since the receiving antenna 51 and the tuner unit 52, demodulation unit 53, reproduction control unit 54, decoding unit 55, and notification device 57 (alarm 57a, light emitter 57b) constituting the STB 50 are respectively described in the first embodiment above, The receiving antenna 11, tuner unit 12, demodulation unit 13, playback control unit 14, decoding unit 15, and notification device 17 (warning device 17a, light emitter 17b) are the same, and therefore description thereof will be omitted.

The notification control unit 56 controls the notification device 57 by generating a control signal of the notification device 57 based on the detection signal of the emergency warning broadcast provided by the demodulation unit 53 and providing it to the notification device 57. The control signal of the detection signal is supplied to the telephone connection unit 58 .

The telephone connection unit 58 controls the mobile phone 59 , which is controllably connected from the set-top box 50 via the connection unit 60 , based on the emergency alarm broadcast control signal supplied from the notification control unit 56 . The connection between the telephone connection unit 58 and the mobile phone 59 can be performed via a network such as a telephone line or the Internet (when the mobile phone 59 has an e-mail function).

In the case of connecting via a telephone line, the telephone number of the mobile phone 59 registered in the set-top box 50 is automatically connected to the mobile phone 59, and the sound of the emergency alarm broadcast and the above-mentioned second alarm broadcast are output to the mobile phone 59. In the embodiments, the voice message and the like are voices related to the emergency alarm broadcast. In the case of connecting via the network, the e-mail address of the mobile phone 59 registered in the set-top box 50 is used to automatically connect to the network, for example, the message of characters in the above-mentioned first embodiment and the like are related to the emergency alarm broadcast. The document is sent to the cellular phone 59 by e-mail.

As described above, by the set-top box 50 of the fourth embodiment of the present invention, when the emergency alarm broadcast is detected in the standby state, the notification device 57 is activated, and the mobile phone 59 connected by the connection part 60 can be controlled simultaneously, so The detection of the emergency alert broadcast may be known to the user even if the user is located at a location remote from the set top box 50 .

Therefore, with the broadcast receiving device of the fourth embodiment, when an emergency alarm broadcast is detected, it is possible for the user to make an appropriate judgment. Furthermore, by disposing the memory 18 and the display device 19 described in the above-mentioned first embodiment in the set-top box 50, combining with the first embodiment, and outputting a message on the display device 19 by characters, by disposing the memory 18 and the display device 19 in the set-top box 50 The memory 28 and the voice output device 29 described in the above-mentioned second embodiment are combined with the second embodiment, and a message is output to the voice output device 29 by voice, so that the user can further make an appropriate judgment. Of course, it can also be combined with the first and second embodiments to output messages through both characters and sounds.

At this time, in the memory 18 or the memory 28, a message for explaining the control status of the mobile phone 59 as other connected devices such as "a message has been transmitted to the mobile phone" is stored in advance, and when the mobile phone 59 is controlled , by outputting a message of the control status, the user can know what kind of control is being performed.

Next, a broadcast receiving device according to a fifth embodiment of the present invention will be described. FIG. 8 is an example of a set-top box for digital broadcast reception according to a fifth embodiment of the present invention. Furthermore, since the receiving antenna 71 and the tuner unit 72, demodulation unit 73, reproduction control unit 74, decoding unit 75, and notification device 77 (alarm 77a, light emitter 77b) constituting the STB 70 are respectively described with the first embodiment described above, The receiving antenna 11, tuner unit 12, demodulation unit 13, playback control unit 14, decoding unit 15, and notification device 17 (warning device 17a, light emitter 17b) are the same, and therefore description thereof will be omitted.

The notification control unit 76 controls the notification device 77 by generating a control signal of the notification device 77 based on the detection signal of the emergency warning broadcast provided by the demodulation unit 73 and providing it to the notification device 77. The control signal of the detection signal is supplied to the network connection unit 78 .

The network connection unit 78 controls the gas usage device 79 , which is controllably connected from the set-top box 70 through the connection unit 80 , based on the emergency alarm broadcast control signal provided by the notification control unit 76 . Specifically, the supply of gas to the gas usage device 79 is shut off while stopping the operation of the gas usage device 79 .

The gas using device 79 is a device using gas such as a gas furnace, a water heater, or a gas heater. The connection between the network connection unit 78 and the gas usage device 79 may be directly connected via a cable, or may be indirectly connected via a network such as a LAN or the Internet. Furthermore, the connection is not limited to a wired connection, and a wireless connection using radio waves, infrared rays, or the like may be used. Therefore, the gas usage device 79 has a communication function with other devices.

As described above, with the set-top box 70 of the fifth embodiment of the present invention, when an emergency alarm broadcast is detected in the standby state, the notification device 77 is activated, and the gas utilization device 79 connected by the connection member 80 can be controlled simultaneously. When an emergency alarm broadcast is detected, the operation of the gas utilization device 79 can be automatically stopped, and the gas supply to the gas utilization device 79 can be cut off, which can prevent disasters when they do not occur, and allow users to deal with them with peace of mind.

Therefore, with the broadcast receiving device of the fifth embodiment, when an emergency alarm broadcast is detected, it is possible for the user to make an appropriate judgment. Furthermore, by disposing the memory 18 and the display device 19 described in the above-mentioned first embodiment in the set-top box 70, combining with the first embodiment, and outputting a message on the display device 19 by characters, by disposing the memory 18 and the display device 19 in the set-top box 70 The memory 28 and the voice output device 29 described in the above-mentioned second embodiment are combined with the second embodiment, and a message is output to the voice output device 29 by voice, so that the user can further make an appropriate judgment. Of course, it can also be combined with the first and second embodiments to output messages through both characters and sounds.

At this time, in the memory 18 and the memory 28, "the fire of the gas furnace has been extinguished.", "the fire of the gas furnace has been extinguished.", etc. are used to explain the control status of the gas using device 79 as other connected devices. When the gas utilization device 79 is controlled, by outputting the message of the control status, the user can know what kind of control is being performed.

Moreover, by having the television receiver 39 described in the above-mentioned third embodiment in the set-top box 70, connecting the television receiver 39 with the connection part 40, and automatically controlling the television receiver 39, the same as the above-mentioned third embodiment can be obtained. Effect. Moreover, by having the telephone connection unit 58 of the above-mentioned fourth embodiment in the set-top box 70, it is assumed that the mobile phone 59 can be controlled through the connection part 60, and the e-mail and voice explaining the situation can be automatically output to the mobile phone 59. The same effects as those of the fourth embodiment described above are obtained.

The present invention is not limited to the above-described embodiments of the present invention, and various modifications and applications are possible within a range not departing from the gist of the present invention. For example, in the above-mentioned embodiments, the case where the broadcast receiving device is in the standby state has been described, but it goes without saying that the same process can be performed when the TV is not in the standby state, that is, when the main power is turned on.

In addition, in the above-mentioned embodiments, the broadcast receiving device has been described as a set-top box, but the broadcast receiving device is not limited thereto, and any broadcast receiving device may be a device dedicated to emergency alarm broadcast detection, a digital broadcast tuner, or the like. In the case of the emergency alarm broadcast detection dedicated device, the reproduction control unit and the decoding unit are not essential. Furthermore, BS digital broadcasting is given as an example of the channel coding method, but it can also be applied to other digital broadcasting such as terrestrial digital broadcasting, cable digital broadcasting, and digital radio broadcasting.

Claims (13)

1, a kind of broadcast receiver can receive emergency alarm broadcasting, it is characterized in that:

When detecting emergency alarm broadcasting, make the action of notice parts, point out the message of explanation situation simultaneously.

2, broadcast receiver as claimed in claim 1 is characterized in that:

The explanation of described situation comprises the operating procedure of utilization audiovisual emergency alarm.

3, broadcast receiver as claimed in claim 1 is characterized in that:

The character Display mode that produces with display unit carries out the prompting of described message.

4, broadcast receiver as claimed in claim 1 is characterized in that:

Carry out the prompting of described message in the voice output mode that voice output produces.

5, a kind of broadcast receiving method can receive emergency alarm broadcasting, it is characterized in that:

When detecting emergency alarm broadcasting, make the action of notice parts, point out the message of explanation situation simultaneously.

6, a kind of broadcast receiver can receive emergency alarm broadcasting, it is characterized in that, comprising:

The link that is connected with miscellaneous equipment; And

Control assembly when detecting emergency alarm broadcasting, makes the action of notice parts, and the control signal of the miscellaneous equipment that connects by described link is controlled in output simultaneously,

The described control assembly of this broadcast receiver prompting explanation is to the message of the control situation of miscellaneous equipment.

7, broadcast receiver as claimed in claim 6 is characterized in that:

The character Display mode that produces with display unit carries out the prompting of described message.

8, broadcast receiver as claimed in claim 6 is characterized in that:

Carry out the prompting of described message in the voice output mode that voice output produces.

9, broadcast receiver as claimed in claim 6 is characterized in that:

Make the power connection of television receiver by described control signal.

10, broadcast receiver as claimed in claim 6 is characterized in that:

By of the portable telephone output and emergency alarm broadcast related sound of described control signal to registered in advance.

11, broadcast receiver as claimed in claim 6 is characterized in that:

Send and the broadcast related document of emergency alarm with the Email form by the portable telephone that has e-mail function of described control signal to registered in advance.

12, broadcast receiver as claimed in claim 6 is characterized in that:

By above-mentioned control signal, stop the action that coal gas uses equipment.

13, a kind of broadcast receiving method can receive emergency alarm broadcasting, it is characterized in that, comprising:

The Connection Step that is connected with miscellaneous equipment; And

Controlled step when detecting emergency alarm broadcasting, makes the action of notice parts, and output simultaneously is controlled at the control signal of the miscellaneous equipment that connects in the described Connection Step,

The described controlled step of prompting explanation is to the message of the control situation of miscellaneous equipment.

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