JPH01143409A - Acoustic equipment - Google Patents

Abstract

PURPOSE:To listen to a voice/music at a small sound volume at sleeping and at a large sound volume at awaking by amplifying the sound volume for a required time from the time of power application. CONSTITUTION:The user gives a power off-time data and a power on-time data to a timer 5. The timer 5 counts the time and outputs a poweroff signal 6 at the time of the power-off time. The timer 5 outputs the power-on signal 7 at the power-on time and starts the output of an amplification operation signal 8. The output of the audio signal 2 from the sound signal source 1 to the attenuator 3 is started and the inputted audio signal 2 is outputted to a speaker 4 at the level. Thus, the speaker 4 starts the acoustic output by a conventional sound volume. When the output consecutive time of the amplification operation signal 8 elapses, the timer 5 stops the output of the amplification operation signal 8.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an audio device that turns on and off the power at preset times, and particularly relates to an audio device that has a volume adjustment function when turning on and off the power. .

[Conventional technology]

2. Description of the Related Art Conventionally, some audio devices have a function of automatically turning on and turning off power if a time is set in advance. For example, the configuration of this type of device is such that the time when the power is turned on and off is manually input to a timer, and the timer is turned on and off at a predetermined time.
A disconnection signal was sent to the power supply section, and upon receiving this signal, the power supply section turned on and off the power.

[Problem that the invention seeks to solve]

However, conventional audio devices have a drawback in that the volume cannot be set properly when the device is used in such a manner that the power is turned off when going to bed and turned on when the user wakes up. That is, in this case, since the volume is normally set low when sleeping, the volume is too low when the power is turned on, that is, when waking up, which is an inconvenience.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide an audio device having a volume control function when power is turned off and on.

[Means for solving problems]

In order to achieve the above-mentioned objects, the present invention provides the following A-E
The present invention provides an audio device having the following means. Note that audio devices include devices for listening to audio and music such as radio receivers and tape recorders, as well as television receivers and the like.

A Audio signal generation means that outputs an audio signal.

B. Electroacoustic conversion means that converts audio signals into acoustic output.

C. A timekeeping means for manually inputting power-off time data and power-on time data, outputting a power-off signal and a power-on signal at the power-off time and power-on time, and outputting an amplification operation signal for the required time from the power-off time.

D. Power control means for turning off and turning on the power to the audio signal generating means by receiving a power cut signal and a power on signal.

E. Amplification means that amplifies the audio signal by receiving the amplification operation signal.

[Effect]

The user manually enters power-off time data and power-on time data into the timekeeping means.

In a state where the audio signal generating means is operating and the electroacoustic converting means is driven, when the power cut-off time comes, the clock means outputs a power cut-off signal. Upon receiving this signal, the power supply control means turns off the power to the audio signal generation means. As a result, the audio signal generating means stops operating, and the driving of the electroacoustic converting means stops.

Next, when the power-on time comes, the timer outputs the power supply input signal and starts outputting the amplification operation signal. Upon receiving the power supply input signal, the power supply control means powers on the audio signal generation means.

As a result, the audio signal generating means starts outputting the audio signal. Further, upon receiving the amplification operation signal, the amplification means operates, amplifies the human-powered audio signal from the audio signal generation means, and outputs the amplified audio signal to the electroacoustic conversion means. Therefore, the electroacoustic transducer starts driving with a loud sound l. When the required time has elapsed, the timer stops outputting the amplification operation signal.

As a result, the acoustic output of the electroacoustic transducer becomes a normal volume.

〔Example〕

The present invention will be described in detail below with reference to Examples.

FIG. 1 shows the configuration of an audio device according to an embodiment of the present invention. An audio signal 2 output from an audio signal source 1 such as a final stage power amplifier of a receiver is sent to a speaker 4 through an attenuator 3. The timer 5 receives power-off time data and power-on time data, outputs a power-off signal 6 and a power-on signal 7 at predetermined times, and starts outputting an amplification operation signal 8 when the power-on signal 7 is output. death,
It continues to output for the required time. This output duration is, for example, about two hours, and is written in advance in a memory (not shown) in the timer 5. Further, if necessary, it is also possible to input the output duration time when inputting the power off time and the like. The power supply unit 9 supplies power to the audio signal source 1 and the like, and turns the power off and on by receiving the power off signal 6 and the power on signal 7. The attenuator 3 normally outputs the input audio signal 2 at the same level, and amplifies it by a predetermined amount while the amplification operation signal 8 is being sent out.

Here, the operation of this audio device will be explained. First, the user inputs the power-off time data and power-on time data to the timer 5.
Enter. Here, it is assumed that 11:00 pm and 6:00 am are set as the power-off time and power-on time, respectively, and the output duration of the amplification operation signal 8 is 2 hours.

Timer 5 measures the time and turns off the power (11:00 p.m.)
When this happens, a power off signal 6 is output.

In response to this power off signal 6, the power supply unit 9 switches the audio signal source 1
etc., turn off the power.

Next, when the power-on time (6:00 a.m.) comes, timer 5
At the same time as outputting the power-on signal 7, outputting the amplification operation signal 8 is started. Upon receiving the power-on signal 7, the power supply unit 9 turns on the power to the audio signal source 1 and the like. As a result, output of the audio signal 2 from the audio signal source 1 to the attenuator 3 is started.

Further, upon receiving the amplification operation signal 8, the attenuator 3 outputs the human-powered audio signal 2 to the speaker 4 at the same level. As a result, the speaker 4 starts outputting sound at the normal volume. Then, when the output duration time of the amplification operation signal 8 has elapsed (8:00 am), the timer 5 stops outputting the amplification operation signal 8. As a result, the attenuator 3 stops its amplification operation and outputs the manually inputted audio signal 2 to the speaker 2 at the same level. From then on, normal sound output occurs.

〔Effect of the invention〕

As explained above, according to the present invention, the volume is amplified for the required time from the power-on time. Therefore, if used for power control when going to bed and waking up, there is an advantage that you can listen to voices and music at a low volume when sleeping and at a high volume when waking up, without having to particularly adjust the volume.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an audio device according to an embodiment of the present invention. 1...Audio signal source, 2...Audio signal, 3...Attenuator, 4...Speaker, 5...Timer, 6. ...Power off signal, 7...Power on signal, 8...Amplification operation signal, 9...Power supply section. Applicant: NEC Corporation Representative

Claims (1)

[Scope of Claims] An audio signal generating means for outputting an audio signal; an electroacoustic converting means for converting the audio signal into an acoustic output; power-off time data and power-on time data are input; a timer for outputting a power-off signal and a power-on signal at a power-on time, and outputting an amplification operation signal for a required time from the power-off time; An audio device comprising: a power control means for turning off and turning on the audio signal; and an amplification means for amplifying an audio signal by receiving the amplification operation signal.