JPH0625900B2 - Group education equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a group education device suitable for application to a language practice device, a musical instrument practice device, and the like.

Background art and its problems Group education devices such as language practice devices consist of a console for teachers and a booth for students, and each student repeatedly repeats the contents of the teaching materials in response to a command from the console side. It is a group learning system that has a function of receiving a check from a teacher as to whether or not repetitive practice is wrong, as well as other functions.

With this group education device, for example, a group language practice device, it is not possible to record the utterance of the student monitored by the teacher up to now and the number (recognition number) corresponding to that student on the tape recorder on the console side. On the other hand, it was impossible to make a concrete point based on one's own utterance, such as which occurrence was wrong and how.

Aside from this, a queue signal (eg tape count value) corresponding to the recording position of the master tape recorder is also available.
If you can record, you can search the recorded information smoothly. The same applies to the collective instrument practice device.

SUMMARY OF THE INVENTION Therefore, in the present invention, it is possible to record a queuing signal according to the vocalization of the student or the practice content of the musical instrument of the student, or a queuing signal having some relation to the content to be recorded only by the control on the console side.

SUMMARY OF THE INVENTION Therefore, in the present invention, means for driving a tape having a sub-track in parallel with an audio track, and a control signal having information related to an audio signal recorded on the audio track are recorded on the sub-track. Also, recording / reproducing means for reproducing from this, means for detecting a counter value according to the tape running amount, key input means for selecting a student number or a counter value of the tape as the control signal, and a reproduced control signal The group education device is constituted by the display means for displaying the contents. Selection of control signal by key input,
The display of the contents of the control signal is collectively controlled based on the instruction of the CPU provided in the host computer section.

Example Next, a case where an example of the present invention is applied to a group language practice device will be described in detail with reference to FIG.

In FIG. 1, (10) shows an example of a console which is a main part of this apparatus, which is composed of a host computer section (10A) and a tape recorder section (10B). The host computer section (10A) is for collectively controlling the mode display of the tape recorder section (10B) and the tape recorder section (10B), and has a master central processing unit M / CPU (1). Data is sent from the key input unit (2) to
A display corresponding to the data is displayed on the display device, which is the CRT (4) in this example, via the controller (3).

The data of the M / CPU (1) is further sent to the tape recorder section (10B) via the communication control circuit (I / O interface) (5).

The tape recorder unit (10B) is configured to realize the basic functions as a tape recorder, and has a drive means (11) for driving a tape having a sub-track in parallel with an audio track and a queuing signal. That is, recording / reproducing means (20) for recording and reproducing a control signal corresponding to the audio information recorded on the audio track on the sub-track.
Is provided.

H _M is a head for recording / reproducing audio signals, H _S is a head for recording / reproducing control signals, and heads H _M are supplied with reproduction outputs of a plurality of tape recorders provided on the booth side through terminals (13). To be done. (14) is a switching means controlled by the output of the M / CPU (30). Recording / reproducing means
(20) is an example of recording and reproduction by tone burst, and (2
1) shows a square wave generator, and the square wave output of this square wave generator (21), for example 500 Hz, is converted into a sine wave output by a band filter (22) and then recorded via an electronic switch (23). Supplied to (24). A sine wave oscillator may be used instead of the square wave generator (21), and the output of the square wave generator (21) may be directly keyed without using the electronic switch (23).

Reference numeral (26) denotes a waveform shaping circuit, and the output of the regenerative amplifier (25) is supplied to the input port (27) via the waveform shaping circuit (26). (30) is the CPU on the tape recorder side.
Receives a data signal from the regenerative amplifier (25) via an input port (27) and supplies a signal for controlling its opening and closing to an electronic switch (23) via an output port (28).

A switching switch (16) for recording / reproducing is controlled by a control signal generated by the T.CPU (30) based on a command from the M.CPU (1).

FG is a frequency generator associated with the rotating reel of the tape driving means (11), and its output is converted into an output of 1,0 by the waveform shaping circuit (29), and then T via the input port (27).・ CPU (3
0). Reference numeral (31) denotes a communication control circuit (I / O interface), which is used for exchanging data with the M / CPU (1) of the host computer section (10A) by, for example, an RS232C system. .

In the present invention, the student identification number, the tape counter output obtained from the frequency generator FG, etc. are used as the control signals to be recorded on the sub-track. Student numbers are used in the following cases:

For example, a student may want to record the contents of a repetitive practice after sending out one sentence of the teaching material. In such a case, the monitor mode is set and the tape recorder unit (10B) on the console side is set to the recording mode, so that the audio signal for repetitive practice of the student is recorded on the main track. At this time, in order to record the student identification number at the same time, turn on the student number recording key STD / NO (see FIG. 5) in the key input section (2) and specify the student number with the number key NK,
When the entry key ENT is turned on, the data is
The digital data signal (for example, 8 beat data) sent to (1) and corresponding to the recognition signal is the tape recorder unit (10B).
And the input port (27) in the T / CPU (30)
A prohibition signal is formed to prohibit the tape counter output input to the T.CPU (30) via the output port (28).

Therefore, only the digital data signal corresponding to the recognition signal is input to the output port (28).

This digital data signal is composed of 8 bits as shown in FIG. 2A, for example, and this digital data signal is supplied to the electronic switch (23) as a switching control signal to control its opening and closing.

As is apparent from FIG. 2A, this digital data signal is a self-clock type signal containing a clock pulse of a predetermined frequency and having "1" and "0" data portions in the subsequent portion of the clock pulse. The data part consists of "Hi" 1 unit length and "Lo" 2 unit length for data "0", and "Hi" 2 unit length and "Lo" 1 unit length for data "1". It is connected. This one unit length is set to 8 mS, for example. Furthermore, since this data signal is a self-clock type, it is not affected by the running speed of the magnetic tape.

The continuous sine wave output of 500 Hz is controlled by such a digital data signal, and the output of the electronic switch (23) is an intermittent sine wave (hereinafter referred to as tone burst) suitable for magnetic recording as shown in FIG. 2B. Data signal. This tone burst is recorded on the tape as a queuing signal through the recording amplifier 24 and the recording head H _S. With 8-bit digital data, 256 kinds of recognition signals can be formed. Actually, the maximum is about 10 × 10, so the rest is used for other digital data.

Therefore, for example, as in the format shown in FIG. 3, a 16-bit queue signal is divided into 4 bits a, b, c, and d, and the type of queue signal (16
0 to 9 for each decimal digit of 100, 10, and 1 by using the divisions b, c, and d.
It can represent a series of 99 numbers. The types of queue signals include an identification number, manual data input for controlling an external device, a count value of a tape counter, or a sentence number of a teaching material.

When the tape on which the queuing signal as described above is recorded is reproduced, the output of the reproduction amplifier (25) is as shown in FIG. 2B.
It becomes a tone burst data signal. This tone burst is shaped by a waveform shaping circuit (26) into a digital data signal as shown in FIG. 2A by using, for example, double wave rectification and envelope detection, and the input port (27) is shaped. It is supplied to the T-CPU (30) as queue signal information via the. If this digital queue signal information is for manual data input, the T-CPU (30) can easily transfer this to the console console via the I / O interface (31), so that the external device The operation can be controlled in various ways. Further, in the case of a queuing signal from the tape counter, when the tape counter value matches the desired counter value, the tape running can be stopped and the tape position for the desired teaching material can be quickly searched.

This process will be described with reference to the flowchart of FIG. 4 in the case of the student identification number. It is assumed that the tape is initially stopped at a position past an arbitrary student number S ₀ .

Although illustration is omitted, when the desired student number S _n is input to the T · CPU (30) via the M · CPU (1) by operating the ten-key etc. provided in the queue input unit (2), the TCPU ( 30) first supplies a control signal FF for traveling faster than constant speed reproduction to a traveling control device (not shown) for the tape drive means (11),
The tape runs fast forward. In this case, the reproduction head H _S comes into contact with the tape, and the running speed is suppressed to a speed at which the queue signal can be stably reproduced. Play the first queuing signal and read the student number S ₁ . Here, the T-CPU (30) compares the magnitude relationship between the first student number S ₁ and the desired student number S _n to obtain S _n.
= S ₁ ends the tape position detection. Also, S _n > S
_In the case of _1, the control signal FF is in the case of S _n <S ₁ , and in the case of S _n <S ₁ , the control signal RW for running in the reverse direction faster than the constant speed reproduction is T
・ The tape is supplied from the CPU (30) to the running controller, and the tape is played at high speed in the forward or reverse direction. Then, the second queuing signal is reproduced to read the student number S ₂ , and thereafter the number comparison is repeated, and the desired student number S _n is detected and the tape position detection is completed.

When the tape counter mode is set in the key input section (2) (the CNT key in Fig. 5 is turned on), the data is M ・ C.
It is transmitted to the T / CPU (30) via the PU (1), whereby the tape counter output is converted into an 8-bit digital data signal in the T / CPU (30), and the tone burst signal is generated by this digital data signal. Is formed and recorded on the sub-track in the same manner.

As the sentence number, a continuous number is recorded for each sentence of the teaching material. At this time, the recording mode is realized by operating the AUTO key shown in FIG. The +1 ENT key is a key used when the student identification numbers are continuous or the manual numbers are continuous and the value set by the manual using the NK key is incremented by 1 and sequentially recorded.

The key input section (2), an example of which is shown in FIG. 5, may be provided in the screen display section of the display device (4). In this case, a transparent electrode switch is used as the key input section (2). Then, the operation keys required for the selected mode are displayed on the display screen by the command of the M / CPU (1), and the transparent electrode switch corresponding to the required operation key is operated with a finger (pressing operation). Then, the function mode corresponding to the operation key is realized. The transparent electrode switch is a combination of two strip-shaped transparent electrodes orthogonal to each other, and an example thereof is shown in FIG.

In FIG. 6, S is a display screen, on the front surface of which a transparent electrode (42) formed in a strip shape extending in the horizontal direction and a strip-shaped transparent electrode pattern (43) extending in the vertical direction are arranged to face each other. The switch pattern (44) is formed.
Each end (42A) of the transparent electrode (42) and the transparent electrode pattern (43),
Although not shown, a lead wire (45) to which a control circuit and the like are connected is connected to (43A). The transparent electrode switch (40) is formed by pressing and deforming the transparent electrode pattern (43) with a finger or the like.
By making contact with (42), only that contact portion is electrically conducted. As a result, information such as a switching signal is supplied to a predetermined control circuit which is electrically connected to the contact portion, each mode on the console side or the booth side can be realized based on the information, and the state is displayed on the screen S.

For example, the transparent electrode pattern (43B) in the sixth column from the left end in FIG.
When the finger is pressed with the finger (46), the transparent electrode pattern (43B) is deformed by this operation, and the transparent electrode (42
It comes into contact with B), which becomes conductive. As a result, a signal is supplied to the control circuit to which the transparent electrode (42B) on the fourth row from the upper end and the transparent electrode pattern (43B) on the sixth row from the left end are respectively connected.

Accordingly, on the screen S, an information pattern corresponding to the various modes as described above, that is, operation keys and mode information (blink, color change, etc.) displayed in duplicate on the operation keys are displayed, and Select one of the display parts corresponding to the operation keys provided in the information pattern by the transparent electrode switch.
If selected by (40), each mode is selected.

EFFECTS OF THE INVENTION As described above, according to the present invention, the control signal corresponding to the voice signal recorded in the voice track can be recorded in the sub-track to the voice track, which is extremely useful in practice check, voice search, and the like. It is convenient.

Further, the tape recorder unit (10B) is configured only to realize the basic functions of the tape recorder, and the specific control is entirely performed by the host computer unit (10A).
The tape recorder section (10B) can be used for a wide range of purposes because it is performed by a command from the. In addition, there is no possibility that the hardware of the tape recorder unit (10B) will be complicated even if the application is expanded in this way.

[Brief description of drawings]

FIG. 1 is a system diagram showing an example of a main part of the present invention, and FIGS.
FIG. 5 is a diagram for explaining the operation, and FIG. 6 is a perspective view showing an example of a transparent electrode switch. (10A) is a host computer section, (10B) is a tape recorder section, (1) and (30) are CPUs, (11) is a tape drive means, (20) is a recording and reproducing means, and (2) is a key input section, (4) is a display device, (40)
Is a transparent electrode switch.

Claims (1)

[Claims] 1. A driving means for driving a tape having a sub-track formed in parallel with a main track for recording an audio signal, and a control signal having information related to the audio signal recorded on the main track for the sub-track. Recording means for recording on the track, reproducing means for reproducing the control signal recorded on the sub-track, display means for displaying contents corresponding to the reproduction control signal reproduced by the reproducing means, and driven by the driving means. The detection means for detecting the counter value of the tape corresponding to the tape running amount of the tape, and the input means for selecting the signal indicating the counter value of the tape detected by the detection means or the signal indicating the student number, The recording means records the signal selected by the input means on the sub-track as a control signal. Education system.