JPH05315987A - Radio receiver - Google Patents

Abstract

PURPOSE:To automatically set up/reset a maximum volume state without depending upon user's operation. CONSTITUTION:The radio receiver for outputting received information as a sound signal has the following four means. A volume control means 5 controls sound volume to be outputted to a speaker based upon user's operation. A maximum volume means 4 outputs received information at the maximum volume independently of the volume control of the means 5. A setting means 3 drives the means 4 in response to a maximum volume setting request signal included in the received information. A resetting means 3 stops the operation of the means 4 in response to an end signal included in the received information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a radio receiver, and more particularly to a radio receiver suitable for a disaster prevention radio and a receiver provided for each house.

[0002]

2. Description of the Related Art A receiver used for disaster prevention administration,
2. Description of the Related Art A receiver for locating each unit and receiving disaster prevention radio information sent from a central office is conventionally known. Such a door-to-door receiver for disaster prevention administrative radio has a compulsory maximum volume function for compulsorily outputting important information from a speaker at maximum volume.

FIG. 2 is a block diagram showing the configuration of such a disaster prevention administrative radio receiver. The wireless information received from the antenna 11 to the wireless receiving unit 12 is sent to the selective calling unit 13. The selective calling unit 13 receives the wireless information received by the wireless receiving unit 12 and determines whether the wireless information is important information to be output from the speaker 16 at the maximum volume. When the information is important information, the forced volume setting signal is given to the maximum volume setting circuit 14 so that the information is output from the speaker 16 at the maximum volume. And
When resetting the maximum volume setting circuit 14, the user normally pushes the reset switch 17 to reset the maximum volume state. Alternatively, without providing such a special reset switch, the maximum volume state may be reset by the user touching the volume adjustment switch provided in the low frequency amplification unit 15.

In any case, in such a conventional method, the maximum volume state is reset by the operation of the user. Therefore, if the reset switch is accidentally touched during an important emergency call, the maximum volume can be notified. There is a risk that you may miss the report without doing so. On the other hand, if the user does not reset after the notification ends,
Even general notifications that do not need to be notified at maximum volume are notified at maximum volume, which is rather annoying.

[0005]

As described above, in the conventional radio receiver, if the reset switch is touched by mistake, an important message may be missed, or if the reset is forgotten, the general message is output at maximum volume. There was a problem in that it was reported from the speaker.

Therefore, an object of the present invention is to eliminate this problem and to automatically set and reset the maximum volume state without depending on the operation of the user.

[0007]

DISCLOSURE OF THE INVENTION The present invention relates to a volume adjustment means for adjusting the volume output to a speaker by a user's operation in a radio receiver for outputting reception information by voice, and volume adjustment by the volume adjustment means. A maximum volume means for outputting the reception information from a speaker at a predetermined maximum volume, a setting means for operating the maximum volume means in response to a maximum volume setting request signal included in the reception information, and the reception And a reset means for stopping the operation of the maximum volume means in response to an end signal indicating the end of the information contained in the information.

[0008]

In the present invention, when the maximum volume setting request signal included in, for example, the head portion of an emergency call is detected, the forced volume set signal forming the maximum volume state is automatically sent to the maximum volume setting circuit. The notification is output from the speaker at the maximum volume. In addition, when the end signal included in the end part of the emergency call is detected, the selective call is canceled and the maximum volume setting circuit automatically sends the forced volume reset signal to stop the maximum volume state. If the message is a general message that does not include the maximum volume setting request signal, the message can be heard at the volume set by the volume controller at that time, instead of the maximum volume.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment according to the present invention. The output of the antenna 1 is connected to the wireless receiver 2 and
Is connected to the selective calling unit 3 and the maximum volume setting circuit 4. The output of the maximum volume setting circuit 4 is connected to the low frequency amplifier 5, and the output of the low frequency amplifier 5 is connected to the speaker 6. The selective calling unit 3 includes a forced volume setting terminal, a forced volume reset terminal and a selective calling terminal. The former two are connected to the maximum volume setting circuit 4 and the selective calling terminal is connected to the low frequency amplifying unit 5.

In such a structure, when an important emergency call to be given at the maximum volume is received by the antenna 1,
The wireless receiver 2 receives this, demodulates it, and converts it into a low-frequency signal. Prior to this, the selective call signal is added to this emergency call. The selective call signal includes a selection signal indicating selection of this receiver and a maximum volume setting request signal for requesting setting of maximum volume. The selective calling unit 3 compares the selective calling signal with an identification signal set in advance, determines that the receiver is called when they match, and sends the selective calling signal to the low frequency amplifying unit 5. The low frequency amplifying section 5 is activated by the application. As a result, a state in which this notification can be output from the speaker 6 is formed. At the same time, the selective calling unit 3
Responds to the maximum volume setting request signal included in the selective call signal, and gives the compulsory volume setting signal to the maximum volume setting circuit 4, and the maximum volume setting circuit 4 sends an emergency call signal to the low frequency amplifying section 5. The operation is performed so that the maximum amplitude is input, and the volume adjusting function built in the low frequency amplification unit 5 is not activated. As a result, the emergency notification is output from the speaker 6 at the maximum volume regardless of the volume setting value set in the low frequency amplification unit 5. At the end of this emergency call, an end signal indicating the end of information is included. Therefore, at the end of the emergency call, this end signal is input to the selective calling unit 3. Upon receiving this, the selective calling unit 3 releases the selective calling signal and gives a forced volume reset signal to the maximum volume setting circuit 4. As a result, the maximum volume setting circuit 4 resets its function, and thereafter, the low frequency signal output from the wireless reception unit 2 is sent to the low frequency amplification unit 5 with the same amplitude as it is, and the volume adjustment of the low frequency amplification unit 5 is performed. Enable the function. If a general message that does not include the maximum volume setting request signal is received thereafter, the maximum volume setting circuit 4 does not operate, and therefore the volume set in the low frequency amplifying unit 5 is output from the speaker 6. It will be output. Therefore, only the emergency call is automatically output at the maximum volume, and the general call is output at the volume preset by the user.

[0011]

As described above, in the wireless receiver of the present invention, setting and resetting of the maximum volume state is not a user's operation, but a maximum volume setting request signal included in the head part of an emergency call and a termination signal at the end. Since it is automatically done by the end signal, you may accidentally touch the reset switch during an emergency call and miss important information, or forget to reset after an emergency call is notified, and notify you with the maximum volume up to general calls The problem of being ridden is eliminated.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a conventional wireless receiver.

[Explanation of symbols]

 1 Antenna 2 Radio Receiver 3 Selective Calling Unit 4 Maximum Volume Setting Circuit 5 Low Frequency Amplifier 6 Speaker

Claims (1)

[Claims] 1. A radio receiver for outputting reception information by voice, wherein a volume adjusting means for adjusting a volume output to a speaker by a user operation, and a predetermined maximum volume regardless of volume adjustment by the volume adjusting means. A maximum volume means for outputting the received information from a speaker by a speaker, a setting means for operating the maximum volume means in response to a maximum volume setting request signal included in the received information, and an end of the information included in the received information. And a reset means for stopping the operation of the maximum volume means in response to the end signal shown.