JP2000112628A - Keyboard device with built-in speaker and method for interrupting and restarting speaker drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable listening to sound such as music at the side of a keyboard device to be used in a personal computer system. SOLUTION: An audio signal outputted from the audio signal generating means of a personal computer main body is inputted to a sound circuit 3 through an audio input terminal 2, sound is given by driving left and right speakers 4 and 5 by a speaker driving signal outputted from the sound circuit 3 and, then, sound such as music is listened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard device for a personal computer system, and more particularly, to a keyboard device having a built-in speaker, and a method of interrupting and resuming speaker driving.

[0002]

2. Description of the Related Art Hitherto, a speaker for generating a buzzer sound is provided on a personal computer main body, and has been used for the purpose of prompting an operator to respond to a message. However, there is a problem that the buzzer sound from the speaker cannot be heard depending on the installation location of the personal computer.

Therefore, a device has been invented in which a speaker is built in a keyboard device to generate a buzzer sound.

On the other hand, in the age of multimedia, personal computer systems have come to handle not only buzzer sounds but also music and other various sounds.

[0005] However, the device of the invention described above only sounds a buzzer, and cannot handle music and various other sounds.

[0006]

In the above-described conventional method, only a buzzer sound is emitted from a speaker built in a keyboard, and various sounds such as music cannot be heard. The reason is that no consideration is given to hear various sounds such as music.

SUMMARY OF THE INVENTION An object of the present invention is to provide a keyboard device used in a personal computer system, in which a speaker circuit is built in, so that sound can be heard at a keyboard operation location regardless of where the personal computer is placed. To provide.

Another object of the present invention is to provide means for interrupting and resuming the output of sound from a speaker.

[0009]

A keyboard device with a built-in speaker according to a first aspect of the present invention is a keyboard device in a personal computer system having audio signal generating means, and receives an audio signal output from a personal computer main body. A sound circuit that outputs a speaker drive signal; and a speaker that is driven by a speaker drive signal from the sound circuit.

Also, a forced interrupt key detecting circuit for detecting that a forced interrupt key has been pressed, a restart key detecting circuit for detecting that a restart key has been pressed, and an audio signal input to the sound circuit. A suspend / resume circuit that suspends with a signal from the suspend key detection circuit and resumes with a signal from the resume key detection circuit.

[0011] Also, a no-input detection circuit for detecting no key input for a certain period of time, a restart key detection circuit for detecting that a restart key is pressed, and an audio signal input to the sound circuit. And a suspend / resume circuit that suspends with a signal from the period no input detection circuit and resumes with a signal from the resume key detection circuit.

Further, the apparatus may further include a non-input period changing circuit for changing the predetermined period.

[0013] The apparatus may further include a headset and a headset control circuit for controlling the headset.

A speaker drive interruption / resumption method according to a second aspect of the present invention is a speaker drive interruption / resumption method for a keyboard device having a built-in speaker, which detects that a forced interruption key is pressed, interrupts an audio signal input, and drives the speaker. It is characterized in that the signal is made non-output, the audio signal input is restarted upon detecting that the restart key is pressed, and the speaker drive signal is output.

A third aspect of the present invention is a method for interrupting and resuming speaker drive of a keyboard device with a built-in speaker, which detects that there is no key input for a certain period of time, interrupts audio signal input, and outputs a speaker drive signal. Is turned off, and when the resume key is pressed, the audio signal input is resumed and the speaker drive signal is output.

[0016]

FIG. 5 shows a connection diagram of a personal computer system.

Referring to FIG. 5, the personal computer system comprises a personal computer main body 20, a keyboard device 30, and a display device 40.

A keyboard cable 31 from a keyboard device 30 is connected to a keyboard connection terminal 21 of the personal computer main body 20. Keyboard device 30
Is input to the personal computer main body 20 via the keyboard connection terminal 21.

The audio output terminal 22 of the personal computer 20 and the audio input terminal 2 of the keyboard device 30 are connected by an audio cable 23. The audio signal generated by the audio signal generation means 24 of the personal computer body 20 is input to the keyboard device 30 via the audio output terminal 22, the audio cable 23, and the audio input terminal 2.

Embodiment 1 of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a keyboard device with a built-in speaker according to the present invention, and shows details of a keyboard device 30 shown in FIG.

Referring to FIG. 1, the keyboard device 30 of the present invention comprises a key section 1, an audio input terminal 2, a sound circuit 3, a left speaker 4, and a right speaker 5.

The key section 1 is a section for inputting a key.

The audio input terminal 2 is connected to an audio output terminal 22 of the personal computer main body 20 by an audio cable 23, and receives an audio signal generated by the audio signal generating means 24 of the personal computer main body 20.

The sound circuit 3 inputs an audio signal of the personal computer main body 20 through the audio input terminal 2 and outputs a speaker drive signal for starting a speaker.

The left speaker 4 and the right speaker 5 are driven by a speaker drive signal output from the sound circuit 3 to emit sound.

The operation of the first embodiment of the present invention will be described in detail with reference to FIGS.

The audio signal generated by the audio signal generating means 24 of the personal computer body 20 is input to the sound circuit 3 via the audio output terminal 22, the audio cable 23 and the audio input terminal 2.

The sound circuit 3 outputs a speaker drive signal for driving the left speaker 4 and the right speaker 5 from the input audio signal. The speaker drive signal output from the sound circuit 3 drives the left speaker 4 and the right speaker 5. , Sound is output from the left speaker 4 and the right speaker 5.

Thus, various sounds such as music can be heard from the speaker built in the keyboard device.

Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram of Embodiment 2 of the present invention.

In the configuration of the second embodiment, a forced interruption key detection circuit 6, a restart key detection circuit 7, and an interruption / resumption circuit 8 are added to the configuration of the first embodiment.

The forced interruption key detection circuit 6 detects that a key for instructing to interrupt the input of the audio signal to the sound circuit 3 has been pressed.

The restart key detecting circuit 7 detects that a key for instructing to restart the input of the audio signal to the sound circuit 3 has been pressed.

The interruption / resumption circuit 8 interrupts the input of the audio signal from the audio input terminal 2 to the sound circuit 3 based on the signal from the forced interruption key detection circuit 6, and outputs the audio based on the signal from the resume key detection circuit 7. Input terminal 2
The input of the audio signal to the sound circuit 3 is restarted.

The operation of the second embodiment of the present invention will be described in detail with reference to FIG.

When the forced interruption key is pressed, the forced interruption key detecting circuit 6 detects the forced interruption key pressing and outputs an audio signal input interruption signal to the interruption / resume circuit 8. The interruption / resumption circuit 8 receives the audio signal input interruption signal, and the sound circuit 3
Stop inputting audio signals to the As a result, the speaker driving signals to the left speaker 4 and the right speaker 5 are not output, and the left speaker 4 and the right speaker 5 are not output.
The sound from stops.

When the resume key is pressed, the resume key detection circuit 7 detects the depression of the resume key, and outputs an audio signal input / resume signal to the suspend / resume circuit 8. The interruption / resumption circuit 8 resumes the input of the audio signal from the audio input terminal 2 to the sound circuit 3 in response to the input of the audio signal input / resumption signal. As a result, the left speaker 4
And a speaker drive signal to the right speaker 5 is output,
The sounds from the left speaker 4 and the right speaker 5 can be heard again.

In this manner, the sound from the left speaker 4 and the right speaker 5 can be interrupted and resumed by depressing the forced interruption key and the resume key. This is effective when it is desired to temporarily interrupt the sound from the speaker.

Next, a third embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 3 is a block diagram of Embodiment 3 of the present invention.

In the configuration of the third embodiment, the forced interruption key detection circuit 6 in the configuration of the second embodiment is replaced with a non-input detection circuit 9 and a timer 10 for a certain period.

The non-input detection circuit 9 for a certain period
No key input is detected during the period from the start of 0 to the end.

The timer 10 is started by a key input and ends when a predetermined period elapses. If the next key input is made before the end, the timer 10 is reset and restarted.

The interruption / resumption circuit 8 interrupts the input of the audio signal from the audio input terminal 2 to the sound circuit 3 based on the signal from the no-input detection circuit 9 for a certain period, and based on the signal from the resume key detection circuit 7. The input of the audio signal from the audio input terminal 2 to the sound circuit 3 is restarted.

The operation of the third embodiment of the present invention will be described in detail with reference to FIG.

When a key input is performed, the timer 10 is started. When the timer 10 ends without the next key input, the no-input detection circuit 9 detects that there is no key input for a certain period by the timer end signal, and sends an audio signal input interruption signal to the interruption / resumption circuit 8. Is output. The interruption / resumption circuit 8 receives the audio signal input interruption signal and outputs the sound circuit 3 from the audio input terminal 2.
Stop inputting audio signals to the As a result, the speaker driving signals to the left speaker 4 and the right speaker 5 are not output, and the left speaker 4 and the right speaker 5 are not output.
The sound from stops.

When the resume key is pressed, the resume key detection circuit 7 detects the depression of the resume key and outputs an audio signal input / resume signal to the suspend / resume circuit 8. The interruption / resumption circuit 8 resumes the input of the audio signal from the input terminal 2 to the sound circuit 3 in response to the input of the audio signal input / resumption signal. As a result, a speaker drive signal is output to the left speaker 4 and the right speaker 5, and the sound from the left speaker 4 and the right speaker 5 can be heard again.

In this manner, the sound from the left speaker 4 and the right speaker 5 can be interrupted and resumed by detecting no input for a certain period and pressing the resume key. When the user leaves the keyboard device unexpectedly for a long time, the sound from the speaker is automatically interrupted.

Next, a fourth embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 4 is a block diagram of Embodiment 4 of the present invention.

The configuration of the fourth embodiment is obtained by adding a non-input period changing circuit 11 to the configuration of the third embodiment.

The non-input period change circuit 11 changes the operation time of the timer 10 by setting the operation time of the timer 10 input from the key unit 1 in the timer 10.

By changing the operation time of the timer 10, the period during which the non-input of the key is detected by the non-input detection circuit 9 for a certain period is changed.

As described above, the non-input period changing circuit 11
Is provided, the no-input period detected by the no-input detection circuit 9 for a certain period can be freely changed.

In the first to fourth embodiments, the sound is directly output from the speaker. However, by providing the keyboard device 30 with the headset control circuit, the sound can be heard from the headset.

[0058]

An advantage of the present invention is that various sounds such as music can be heard in a keyboard operating environment regardless of the installation location of the personal computer main body. The reason is that the keyboard device is provided with a sound generating means such as a sound circuit and a speaker.

Another advantage of the present invention is that the output from the speaker can be interrupted and restarted on the keyboard device side. The reason is that a means for instructing suspension and resumption of the output from the speaker is provided.

[Brief description of the drawings]

FIG. 1 is a block diagram of Embodiment 1.

FIG. 2 is a block diagram of a second embodiment;

FIG. 3 is a block diagram of a third embodiment;

FIG. 4 is a block diagram of a fourth embodiment.

FIG. 5 is a connection configuration diagram of a personal computer system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Key part 2 Audio input terminal 3 Sound circuit 4 Left speaker 5 Right speaker 6 Forced interruption key detection circuit 7 Resume key detection circuit 8 Interruption / resumption circuit 9 Fixed period non-input period detection circuit 10 Timer 11 Non-input period change circuit 20 Personal computer Main unit 21 Keyboard connection terminal 22 Audio output terminal 23 Audio cable 24 Audio signal generation means 30 Keyboard device 31 Keyboard cable 40 Display device

Claims (7)

[Claims] 1. A keyboard device in a personal computer system having audio signal generating means, comprising: a sound circuit for inputting an audio signal output from a personal computer main body and outputting a speaker drive signal; and a speaker from the sound circuit. A speaker device with a built-in speaker, comprising: a speaker driven by a drive signal. 2. A forced-interruption-key detecting circuit for detecting that a forced-interruption key is pressed, a restart-key detecting circuit for detecting that a resuming key is pressed, and an audio signal input to the sound circuit. The keyboard device with a built-in speaker according to claim 1, further comprising: a suspend / resume circuit that suspends with a signal from a suspend key detection circuit and resumes with a signal from the resume key detection circuit. 3. A non-input detection circuit for detecting no key input for a predetermined period, a resumption key detection circuit for detecting that a resumption key is pressed, and an audio signal input to the sound circuit being input to the sound circuit. 2. The keyboard device with a built-in speaker according to claim 1, further comprising: a suspend / resume circuit that suspends with a signal from a period non-input detection circuit and resumes with a signal from the resume key detection circuit. 4. The keyboard device with a built-in speaker according to claim 3, further comprising a non-input period changing circuit for changing the predetermined period. 5. The keyboard device with a built-in speaker according to claim 1, further comprising a headset and a headset control circuit for controlling the headset. 6. A method for interrupting and resuming speaker drive of a keyboard device with a built-in speaker, comprising detecting that a forced stop key is pressed, interrupting audio signal input, outputting no speaker drive signal, and pressing a resume key. Detecting that the audio signal has been input, restarting the input of the audio signal and outputting a speaker drive signal. 7. A method for suspending and resuming speaker driving of a keyboard device with a built-in speaker, comprising detecting no key input for a certain period of time, interrupting audio signal input, outputting no speaker driving signal, and pressing a resume key. Detecting that the audio signal has been input, restarting the audio signal input, and outputting a speaker drive signal.