JPS6321985B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a modular stereo device.

A modular stereo device is an integral structure of a plurality of functions, such as a record player, an FM receiver, a cassette tape recorder, etc., and is provided with a function switch to select at least one of the functions.

Such a modular stereo device is generally a device for users who are inexperienced in operating it, and the number of operating points is minimized to simplify operation.
For example, the function switch is controlled by a selector 1 consisting of one-touch push button switches arranged horizontally as shown in FIG. Select a function by pressing the push button switch ``DISK'' when playing a record, pressing the push button switch ``AM'' when receiving AM broadcasting, and pressing the push button switch ``FM'' when receiving FM broadcasting. In addition to this, the selector 1 is provided with a switch such as a push button switch ``REC'' that instructs the tape deck to record. Thus, as soon as one of the push-button switches of the selector 1 is pressed, the modular stereo system starts the operation corresponding to that push-button switch. That is, pressing the push button switch ``TAPE'' starts tape playback, and pressing the push button switch ``DISK'' rotates the turntable, automatically moves the tone arm, and starts fully automatic record playback. If the operator desires to record a tape, he presses the push button switch ``REC'' and then presses one of the push button switches ``DISK'', ``AM'', and ``FM'' to record.

However, although the conventional modular stereo system described above is easy to operate, as pressing one of the push button switches of the selector 1 immediately starts the operation of that function, beginners may make the following operational mistakes. easy to commit.

(1) Push the push button switch ``DISK'' before setting the record on the turntable.

(2) Pressing the push button switch ``TAPE'' or ``REC'' before setting the cassette tape.

(3) The push button switch is pressed even though the record or cassette tape is not set correctly.

(4) On a record player with a tone arm attached to the lid, the user presses the push button switch "DISK" with the lid open.

For this reason, not only did the modular stereo device not work, but the device could even be damaged if the above-mentioned operational errors were continued for a long time.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a modular stereo device that solves the above-mentioned problems in the conventional example, issues a warning in case of an abnormal state caused by an operation error, and furthermore, automatically switches to another function. It's about doing.

The modular stereo apparatus according to the present invention detects an abnormal state of the audio signal generating means selected by the function switch, and issues an alarm according to the abnormal state, and detecting an abnormal state of the audio signal generating means, and issuing an alarm according to the abnormal state;
Furthermore, it is designed to automatically switch to another funkmillon.

Hereinafter, embodiments according to the present invention will be described in detail with reference to FIG.

In FIG. 2, 2 to 5 are audio signal generators having different functions such as record players, cassette tape decks, AM tuners, and
This is FM Chiyuna. Function switches 6a, 6b, and 6c each have a drive terminal and operate in conjunction with each other to activate one of the audio signal generators 2 to 5. Reference numeral 7 denotes an output means, which includes an amplifier 8 that amplifies the audio signal selectively inputted from the output of each of the audio signal generators 2 to 5 via the function switch 6b, and a speaker 9 that converts the output signal of the amplifier 8 into audio. and 2 each
Including groups. The abnormality detection device 10 has several types of sensors that detect abnormal states that may occur in the audio signal generating device, and detects an abnormal state due to an operational error of the audio signal generating device selected by the function switch 6c. Generates an abnormal signal. This abnormality signal is supplied to the alarm device 11 and the drive device 12 which is function switching command means. The alarm device 11 generates an alarm within a predetermined time after the occurrence of the abnormal signal. The drive device 12 generates a function drive signal for driving and controlling the function switches 6a to 6c in response to the operation of each pushbutton switch shown in FIG. Generates a recording drive signal to drive the recording switches 13a to 13c, and also generates an FM signal in response to the occurrence of an abnormal signal.
The function switches 6a to 6c are driven and controlled so that the tuner 5 is activated. The recording switches 13a to 13c supply power and audio signals to be recorded to the cassette tape deck 3 in the recording mode, and switch the cassette tape deck 3
and the abnormality detection device 10 are connected. Power supply device 14
is a power source for the audio signal generators 2 to 5 selectively supplied by the function switch 6a;
It has an amplifier 8 and a power supply to each device 10 to 12.

In the modular stereo device according to the present invention having the above configuration, for example, when the push button switch "DISK" is pressed, the drive device 12 generates a function drive signal and connects the input/output lines of the record player 2 to the function switches 6a to 6c. Select and connect. Therefore, the turntable of the record player 2 rotates, the tone arm moves, and the record player 2 starts playing the record. If function switch 6a
If a record is not set on the turntable at the time selected by 6c through 6c, the abnormality detection device 10 detects that there is no record on the turntable and generates an abnormality signal. Therefore, the alarm device 11 generates an alarm sound for a predetermined period of time, and the drive device 12 generates a new function drive signal, and the function switch 6
Switch a to 6c to selectively connect the input/output line of the FM tuner 5. Therefore, the record player 2 does not operate and FM broadcast sound is output from the speaker. Similar operations are performed when another audio signal generator is selected. Furthermore, it may happen that the FM tuner 5 is selected and an abnormal signal is generated from the abnormality detection device 10, but since the FM tuner 5 has an automatic channel selection system, an abnormal state will not occur except when the signal level of the broadcast radio wave is low. do not have. For this reason, when an abnormal signal occurs, the system switches to FM broadcast reception operation.

In the modular stereo system according to the present invention, the alarm device not only generates an alarm sound, but also displays the details of the abnormality using abbreviations or the like. It is also conceivable to provide the push button switch of the selector 1 with a display function and to make it easier for the operator to understand by lighting or blinking each button in order to inform the operator of the function or operation mode being operated.

As described above, according to the modular stereo device according to the present invention, if an incorrect operation is performed, an alarm sound is generated to warn the operator, thereby informing the operator that the operator has made an operation error. In addition, this device according to the present invention automatically activates the function in case of an abnormal condition.
Since the function is switched to a function that can operate normally, such as FM broadcast reception operation, damage to the device can be prevented and the audio will not be interrupted.

Note that in the modular stereo device according to the present invention, the above operations can also be controlled by a microprocessor.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a selector, and FIG. 2 is a block diagram showing an embodiment of a modular stereo apparatus according to the present invention. Explanation of symbols of main parts 1...Selector, 6a
to 6c...function switch, 13a to 13c...recording switch.

Claims (1)

[Scope of Claims] 1. An output means, a plurality of audio signal generation means having mutually different functions, and a function that selectively excites the audio signal generation means and selectively relays the output to the output means. A modular device comprising a switching means, an abnormality detecting means for detecting an abnormal state of the selected audio signal generating means and generating an abnormal signal, and an alarm means for issuing an alarm in response to the abnormal signal. stereo equipment. 2. The modular stereo apparatus according to claim 1, wherein the alarm means issues an alarm indicating the nature of the abnormality. 3. an output means, a plurality of audio signal generation means having mutually different functions, a function switching means for selectively exciting the audio signal generation means and selectively relaying the output to the output means; an abnormality detecting means for detecting an abnormal state of the audio signal generating means and generating an abnormal signal; an alarm means for issuing an alarm in response to the abnormal signal; and a function switching command for the function switching means in response to the abnormal signal. 1. A modular stereo device comprising function switching command means for emitting a function.