JPH01103030A - Emergency alarm broadcast receiver - Google Patents

Abstract

PURPOSE:To know the contents of an alarm broadcast by reproducing the sound recording afterward by storing automatically the contents of the alarm broadcast or a test broadcast in a memory so that it can be reproduced at any time. CONSTITUTION:When an alarm radio wave is applied to a tuner part 1, a start signal of an emergency alarm is applied to an alarm signal detecting part 6, and an alarm broadcast receiving indicator 7 is lighted or flickered. Simultaneously, a control output from the detecting part 6 converts a voice amplifying part 3 to an operating state form a waiting state, and also, by controlling a sound signal switching part 2, a sound signal inputted to the voice amplifying part 3 is set to a prescribed level, and moreover, a control part 13 of a sound recording/reproducing block 9 is controlled through a switching diode 11. The control part 13 controls a voice analyzing and synthesizing part 14, converts an analog signal from the tuner part 1, to a digital signal for a prescribed time, allows a RAM 15 to store its converted output, and also, lights a sound recording indicator 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an emergency warning broadcast receiver (hereinafter simply referred to as a receiver) that receives emergency broadcasts warning of the occurrence of earthquakes, tsunamis, etc.

(Prior art) There have been receivers for emergency broadcasts that warn of the occurrence of earthquakes, tsunamis, etc. These receivers are known to the general public and can be received without having to turn on the power again, making them extremely useful in emergencies. be.

As shown in the block diagram of FIG. 2, the conventional receiver includes a tuner section 1, an audio signal switching section 2, an audio amplification section 3, a speaker 4, and an alarm broadcast signal processing block (hereinafter referred to as an alarm broadcast signal processing block) that are always in operation. The alarm signal processing block 5 is composed of an alarm signal detection section 6, an alarm broadcast reception indicator 7, and a test broadcast reception indicator 8.

Generally, the alarm signal includes a first type start signal and a second type start signal for putting the receiver in the standby state into the operating state, an end signal for returning the receiver in the operating state to the standby state, and a receiving signal. and test signals for periodically testing the machine's functionality.

Conventional receivers receive type 1 warning broadcast waves even when the power is off.
Alternatively, the second type of start signal is applied to the alarm signal detection section 6 via the tuner section 1, and when it is determined that it is a correct alarm signal, a control signal is outputted to put the audio amplification section 3 into the operating state, thereby transmitting the alarm broadcast information. is broadcast from the speaker 4, and the alarm broadcast reception display 7 is lit or blinked to visually confirm the occurrence of an emergency situation.

When the alarm broadcast ends, the control output from the alarm signal detection section 6 is stopped by the end signal in the broadcast wave.

The receiver returns to the original reception standby state.

Furthermore, in order to check the reception function, the receiver receives the warning broadcast test radio waves that are broadcast periodically, and if there is no abnormality in the reception function, the test broadcast reception indicator 8 is displayed by the output from the alarm signal detection section 6. Lights on for a certain period of time or flashes and then turns off.

(Problems to be Solved by the Invention) As mentioned above, even if the conventional receiver correctly receives the alarm broadcast test radio wave, the display on the test broadcast reception indicator disappears after a certain period of time, so the test broadcast It is impossible to confirm the functionality of the receiver unless you are present at the receiving site.

It is an object of the present invention to eliminate the above-mentioned problems and provide a receiver that allows confirmation of the quality of the receiver's functions without being present at the receiving site of a test broadcast.

(Means for Solving the Problems) The present invention achieves the above object by providing a recording/playback block in a receiver that is controlled by a control signal output from an alarm signal detection section, thereby enabling alarm broadcasting or the like. Receiving a test radio wave, starting recording, stopping the recording after a certain period of time, and then artificially erasing the recording, or
This is achieved by keeping the recording until the next alarm broadcast or test radio wave is received, and playing it back when necessary to make it possible to check the receiver function.

(Function) According to the present invention, it is possible to play back and listen to the recording of the warning broadcast or its test radio waves if necessary, so it can be played back at any time even after the warning broadcast or test broadcast. This allows the receiving function to be confirmed, thereby providing a receiver that provides a sense of security in its use.

(Example) Hereinafter, the present invention will be explained with reference to Examples and drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.
indicates a recording/playback block, which is generally composed mainly of semiconductor memory or IC.

10 is a recording display, 11 and 12 are switching diodes, and other symbols are the same as those in FIG. 2 or have the same functions.

With this configuration, the alarm broadcast radio wave is applied to the tuner section 1, and the start signal of the first or second type of emergency alarm is applied to the alarm signal detection section 6, as described in the conventional example in FIG. When it is detected correctly, the alarm broadcast reception indicator 7 lights up.
Or, at the same time as blinking, the control output from the alarm signal detecting section 6 changes the audio amplifying section 3 from the standby state to the operating state, and also controls the audio signal switching section 2 to send the audio signal input to the audio amplifying section 3. is set to a constant level, and further controls the control section 13 of the recording/playback block 9 via the switching diode 11.

The receiver that enters the above state due to the alarm broadcast start signal broadcasts the broadcast information through the speaker 4, then detects the end signal by the alarm signal detection unit 6 in the same way as the start signal, and returns to the original standby mode. is in the state, and the alarm broadcast reception indicator 7 turns off.

On the other hand, when it is confirmed that the alarm broadcast test radio wave has been correctly received by the alarm signal detection section 6, the control output keeps the test broadcast reception display 8 lit for a certain period of time, and at the same time, the switching diode Recording via 12
The controller 13 of the playback block 9 is controlled.

The control unit 13, which is controlled by the control output from the alarm signal detection unit 6 which receives and outputs the start signal or the end signal as described above, controls the audio analysis/synthesis unit 14 to activate the tuner unit 1 for a certain period of time. The analog signal is converted into a digital signal, the converted output is stored in the RAM 15, and the recording indicator 10 is turned on.

The information of the warning broadcast stored in the RAM 15 as described above is stored in the RAM by controlling the voice analysis/synthesizing unit 14 by operating a playback switch (not shown) of the control unit 13.
15 into an analog signal and outputs it to the audio signal switching unit 2. It also controls the control unit 13 to cut off the audio signal output from the tuner unit 1, and outputs it to the audio signal switching unit 2. By inputting the audio signal into the audio amplification section 3, the content of the broadcasted warning broadcast or test radio wave is reproduced, thereby allowing the function of the receiver to be confirmed.

(Effects of the Invention) As is clear from the above description, the present invention makes it possible to automatically store the contents of a warning broadcast or test broadcast in a memory and reproduce it at any time. Even if you are not present at the receiving site of the warning broadcast, you can learn the contents of the broadcasted warning broadcast by playing the above recording later, and you can also check the quality of the reception function by playing back the test broadcast that was broadcast. Since confirmation is possible, it is highly effective when used as an emergency warning broadcast receiver.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional emergency warning broadcast receiver. 9... Recording/playback block, 1o... Recording indicator, 11.12... Switching diode, 13...
・Control unit, 14...Speech analysis/synthesis unit, 15...R
AM (Random Access Memory) Patent Applicant Matsushita Electric Industrial Co., Ltd. Figure 1 5゛vv Information Block 7. 8 No.I Kowatari reverse reception (S Kanzume base 9...Recording Pestle! Glock 1o...Recording Sumo Yoshi 11
, +2- again 4wokenku゛'guio F. Fig. 2 7 G-ho sent to the party

Claims (2)

[Claims] (1) An emergency warning broadcast receiver characterized in that the receiver is equipped with a function of recording and reproducing received emergency warning broadcast information or test radio wave content. (2) The recording/playback mechanism records the received emergency warning broadcast information or the audio signal of the content of the test radio wave by converting it from analog to digital and storing it in the memory,
The emergency warning broadcasting receiver according to claim 1, further comprising converting and synthesizing the digital signal read from the above-mentioned memory into an analog signal and reproducing the same.