JPS6161472B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a tape that performs a song selection operation using a tape on which a large number of songs are recorded, and that performs stop control during the song selection operation without causing any misunderstanding of the playback position. This invention relates to an automatic music selection device.

When recording music on tape, or when music lessons are conducted using a tape recorder, multiple performance pieces are arranged and recorded in series on one continuous tape. I come to do it. In this case, to play the desired song, the tape must be fast-forwarded or rewinded to find the part where the desired song is recorded. It is not easy to match the reproduction part (head part).

For this reason, the recorded range of each performance song is
Various automatic music selection means have been devised that match the recorded portion of a performance song with the reproduced portion by storing and setting the recorded position in connection with a tape counter or the like and setting the recorded position using a counter number or the like.

However, even if such a song selection method is used, it is difficult to know which song was recorded in the current playback, or when selecting a song by fast forwarding etc.
It is difficult to recognize the current tape position that corresponds to the playing portion.

For example, when conducting music lessons using tapes, for one lesson theme song, performance pieces corresponding to various lesson steps are set, and the performance pieces are arranged according to the order corresponding to the lesson step. Recording settings are performed sequentially on one tape. In such cases, it is not only important to be able to quickly play back the desired song number, but also to be able to reliably recognize the song number of the song currently being played. is important.

In this invention, in view of the above points,
This allows the tape position and the number of the reproduced music to be clearly recognized during automatic music selection, and uses a directly recorded signal to determine the recording position without relying on a tape counter or the like.

In other words, the tape used here has a plurality of performance pieces recorded in series, as shown by the shaded area in Figure 1, and the recorded performance pieces are ``1'' and ``2'' in sequence.
... etc. will now be supported. and,
Pause sections with no recording are set between each of these recorded performance songs. For example, when running at high speed with automatic song selection, a non-recording period of approximately 290 m seconds is set as the boundary between performance songs. be done. Here, the shaded area in the diagram where the performance song is recorded will be referred to as "during the song," and the pause section without recording will be referred to as the "between songs."

In this case, for one tape, for example, 16
The performance songs of the songs are recorded, and each one has "1" ~
The operation panel of this playback device has 16 song selection switches 11a and 11b corresponding to each of the 16 song numbers, as shown in Figure 2. ... are provided, and indicators 12a, 12b... made of light emitting diodes, etc. are provided corresponding to the switches 11a, 11b....

In addition to the song selection switches 11a, 11b..., there are also operation buttons for recording (REC), rewind (REW), stop (STOP), play (PLAY), fast forward (FF), pause (PAUSE), etc. Furthermore, a manual/automatic switching operation button is provided to set the automatic music selection state.

That is, in this tape playback device, the inter-track portion of the tape is detected by the inter-track detection circuit, and the detected signal drives a counter to recognize the tape position in relation to the track number. The automatic music selection operation is performed by comparing the number of the music selection switch and the music number counted by this counter.

However, when a music selection operation is performed using such an automatic music selection means, it may be desirable to stop the tape when a certain music number arrives at the playback position. In such a case, it would be sufficient to issue a stop command using the stop button, but the following inconvenience may occur.

When using a tape as described above and detecting an interval between songs by detecting a non-recording section, a time TW1 is required as shown in FIG. 3 in order to distinguish it from a silent section in a song. For example, this TW1 is 14.7m experimentally.
Set to a time width of seconds. Here, the time width "t0 to t3" between songs is set to 290 msec, which is sufficiently larger than TW1 in the high-speed running state of automatic song selection.

However, for example, if we assume that the stop button is operated at timing t1, which is TS = 100 msec later than t0 at the beginning of the inter-track interval during playback between songs, it will take TD = 65 msec before the tape actually stops. It takes time, and the tape comes to a stop at position t2. Therefore, the remaining inter-musical range TW2 is 125 msec, which is a smaller time range than TW1.

Therefore, after performing stop control in this way, assuming a restart for automatic song selection, the non-recording range TW from t2 to t3 is set.
2 is smaller than the song interval detection time TW1, and it becomes impossible to detect and count the song gaps. In other words, an error is corrected in the song number count, making it impossible to perform accurate automatic song selection.

The present invention aims to improve these drawbacks, and in particular to provide an automatic tape selection device that prohibits stop control between songs and ensures accurate counting of song numbers at all times. be.

One embodiment will be described below with reference to the drawings.
Figure 4 shows the configuration of the automatic music selection device, in which the playback signal from the tape deck 13 is sent to the amplifier
The sound is then amplified by the output amplifier 15 and then output from the speaker 16 as a performance sound.
In this case, the presence of the reproduction signal from the amplifier 14 is confirmed, and the song detection circuit 17 generates a song signal for determining that the song portion is in the reproduction state. Further, the inter-song detection circuit 18 determines that the inter-song portion of the tape is being played back, and generates an inter-song signal.
In this case, as described above, this inter-song section may be in a non-recorded state and the detection circuit 18 may determine this, but a special signal other than the audible frequency band may be recorded in this inter-song section. The song interval detection circuit 1
8 may be used for detection.

Although the details are not shown in the tape deck 13 section, a motor mechanism for rotating the tape reel is provided in the same way as in a normal tape device.
Furthermore, a high-speed rotation command is selectively given, and the motor is controlled to rotate the reel in the normal rotation direction and in the reverse rotation direction, and further to bring the reel into the high-speed rotation state in this forward and reverse rotation state. In connection with such reel rotation control by motor control, there is further provided a reel brake release means and a pinch roller pressure contact means for pressing the pinch roller against a capstan that provides running driving force to the tape.

In this case, for this tape deck 13,
The reel brake is configured so that the reel brake is released while the pinch roller is in pressure contact.If the pinch roller is released from the pinch roller after the reel brake is released, the reel brake is released while the pinch roller is separated from the capstan. The configuration is such that the released state is maintained.

Further, this tape deck 13 is provided with a rotation detection means for the reel, which generates a rotation signal of logic "1" when the reel is rotating, and when the rotation of the reel stops, the rotation signal goes to "0". It's starting to go down.

This device includes the aforementioned music selection switch 11a,
11b...with PLAY, REWIND
REW, fast forward FF, STOP, repeat
Command switches 19a to 19f for REPEAT and manual/automatic switching commands are provided, and each generates a logic "1" signal in response to power supply +V when operated. In this case, each command switch 19a-1
9f is composed of an automatic return type push button switch, and each of the command switches 19a to 19
The operation state of f is determined by the differentiating circuits 20a to 20, respectively.
f is sensed and a pulsed switch signal is generated. In this case, the signal from the stop command switch 19d is supplied to the differentiating circuit 20d via an AND circuit 21 which prohibits the stop command.

The output pulse signals from the differentiating circuits 20a and 20b are passed through OR circuits 22a and 22b, respectively.
It is given as a set command to flip-flop circuits 23a and 23b that store the play state and rewind state, and the output pulse signal from the differentiator circuit 20c is given as a set command to the flip-flop circuit 23c that stores the fast-forward state. The respective set states of these flip-flop circuits 23a to 23c are indicated by indicators 24a to 24, such as light emitting diodes.
It will be confirmed in 24c.

The reset terminals of the flip-flop circuits 23a to 23c are given reset commands from the OR circuits 25a to 25c, and the OR circuit 25a receives signals from the differentiating circuits 20b and 20c.
The OR circuit 25b receives signals from the differentiating circuits 20a and 20c, and the OR circuit 25c receives signals from the differentiating circuits 20a and 20c.
A signal from OR circuit 26 is supplied to these OR circuits 25a to 25c. This OR circuit 26
, an OR circuit 27 is supplied with the signal from the differentiating circuit 20d and the initial clear signal IC.
Along with the signals from , a song selection completion signal, a repeat end signal, and an auto-stop signal, which will be described later, are supplied.

The output pulse signals from the differentiating circuits 20e and 20f are sent to the trigger flip-flop 2, respectively.
8a and 28b as a trigger reversal command.
The flip-flop 28a is reset by the output signal from the OR circuit 27, and the flip-flop 28b is reset by the output signal from the OR circuit 29 which is supplied with the initial clear signal IC and the eject command signal. The trigger flip-flop 28b generates an automatic setting command (AUTO) in its set state, and also detects the reversal to the set state by a differentiating circuit 30, and supplies the differentiated pulse signal to an AND circuit 31. This AND circuit 31 is connected to an inverter 3 which is supplied with an output signal from an OR circuit 32 that detects whether one of the music selection switches 11a, 11b, . . . is turned on.
3 is added as a gate signal, and when the command switch 19f is operated and the trigger flip-flop 28b is inverted with neither of the music selection switches 11a, 11b, . . . being operated, the AND circuit 31 The initial wind command IW is generated from This initial wind command IW is supplied to the OR circuit 22b to set the flip-flop circuit 23b.
The set state and reset state of flip-flop 28b are displayed on indicators 34a and 34b, respectively.

The set state of the trigger flip-flop 28a is displayed on the display 24d, and the set output signal is supplied to AND circuits 35a and 35b. The AND circuits 35a and 35b include
The set output signals of the flip-flop circuits 23a and 23b are supplied respectively, and a signal from a differentiating circuit 36 which detects the rise of the detection signal from the song interval detection circuit 18 is also supplied. The output signals from the AND circuits 35a and 35b are supplied to the OR circuit 26 as the repeat signal, and are also supplied to the delay circuits 37a and 37, respectively.
The signal is supplied to the OR circuits 22b and 22a through the circuit 22b to set and control the flip-flop circuits 23b and 23a, respectively.

The output signal of the flip-flop circuit 23b is further supplied to the OR circuit 38 together with the set output signal of the flip-flop circuit 23c. The output signal from this OR circuit 38 is supplied to an AND circuit 39 together with the signal AUTO from the trigger flip-flop 28b, and the output signal from this AND circuit 39 is supplied to an AND circuit 40 as a gate signal. The output signal from this AND circuit 40 is
This serves as a song selection completion signal, which is supplied to the OR circuit 26, and also supplied to the tape deck 13 via the OR circuit 41 as a pinch roller pressure contact command.
Sandwich the tape between the stopped capstan and make the tape stop quickly. This OR circuit 41 is also supplied with a signal for setting the flip-flop circuit 23a, so that the tape is sandwiched between the capstan and the pinch roller in the play state. In this case, although not shown, the capstan to which the pinch roller is pressed is rotated in the playing state so as to run the tape at a set playback speed, and is set to stop at other times.

The reel brake release command to the tape deck 13 is given from the OR circuit 42, and the motor control command for normal rotation and high speed is given from the OR circuit 4.
3 and 44, and the reverse rotation command is directly given when the flip-flop circuit 23b is set. Then, in the OR circuit 42,
A signal from an OR circuit 44 is applied together with the set output signal of the flip-flop circuit 23a, and the set output signal of the flip-flop circuits 23a and 23c is supplied to the OR circuit 43. Also, OR circuit 44
The output signals from the flip-flop circuits 23b and 23c are supplied to the OR circuit 44, and the rising edge of the signal from the OR circuit 44 is detected by a differentiation circuit 45, and the differentiated pulse is supplied to the OR circuit 41.

The rotation detection signal from the tape deck 13 is supplied to a differentiating circuit 46. This differentiation circuit 46 detects the fall of the signal, that is, the stoppage of rotation of the reel, and a differential pulse generated in response to this stoppage of rotation is supplied to an AND circuit 47. This AND circuit 47 includes flip-flop circuits 23a, 2
OR circuit 48 that detects signals from 3b and 23c
is supplied as a gate signal via a delay circuit 49. The output signal from this AND circuit 47 is supplied to the OR circuit 26 as an autostop signal.

The detection signal from the song detection circuit 17 is supplied to an OR circuit 51 together with the output signal of an inverter 50 which is supplied with a signal from an AND circuit 39, and the output signal from this OR circuit 51 is output from the stop command switch 19d. AND circuit 2 that controls the signal of
1 as a gate signal.

The song selection switches 11a, 11b... are not shown in detail, but they are kept in the ON operation state, and if there is another switch that was turned on at the time of the ON operation, they are automatically turned on. The system is configured so that it can be restored to normal state, and everything is normally set to the OFF state using a reset button or the like. Then, in response to the operated switch, a logic "1" signal is generated from the power supply +V, and is supplied to the OR circuit 32, as well as to the encoder 52, and the song number encode information corresponding to the operated song selection switch is generated. become The song number information from the encoder 52 is preset in a presettable up-down UD counter 53 to which a preset command is given by the output of the OR circuit 32. In this case, although not shown in the figure, the rise of the signal from the OR circuit 32 is detected by a one shot circuit, etc., and the counter 5 is detected at the timing corresponding to the operation of the music selection switch.
3 so that a preset command is given. This UD counter 53 is connected to the flip-flop circuit 2.
When setting 3c, the count is set up (increase), and when reset, the count is set down.
The output signal from the AND circuit 54 to which the signal from the song interval detection circuit 18 is supplied is counted.

The count value information from the UD counter 53 is supplied to the comparison circuit 55 and the decoder 56, and the output signal from the decoder 56 is supplied to the NOR circuits 57a and 5.
A display command is given to the display devices 12a, 12b, . . . via 7b, . That is, the NOR circuits 57a, 5
When the output signal from 7b... is "0", the power supply +
V causes the display devices 12a, 12b, . . . to be driven to display. In this case, the decoder 56 is set to the operating state EN by the output signal from the AND circuit 58, and the AND circuit 58 is supplied with the signal AUTO from the trigger flip-flop 28b and the coincidence signal from the comparison circuit 55. A signal from an inverter 59 is supplied.

The comparator circuit 55 further includes a presettable
A signal from the UD counter 60 is supplied. That is, count value information A from this counter 60 and count value information B from the counter 53 are compared,
An output signal is generated in the coincidence state of "A=B". This coincidence signal gives a gate signal to the AND circuit 54, and the differentiation circuit 61 detects the coincidence timing and sends the detection signal to the AND circuit 40. supply.

The UD counter 60 is supplied with information from the count value "1" generation circuit 62, and the AND circuit 6
The count value is “1” in response to the preset command from 3.
It is preset to. The AND circuit 63 has
The flip-flop circuit 64 is set by the initial wind signal IW from the AND circuit 31.
The output signal from the inverter 65, which is supplied with the rotation detection signal from the tape deck 13, is added to the set output signal from the AND circuit 63, and the output signal from the AND circuit 63 is supplied to the flip-flop circuit 64 as a reset command. That is, when the tape deck 13 is in a stopped state in which the reel is not rotating, a preset command is given to the counter 60 in response to the generation of the initial wind command IW, and this command is immediately interrupted with the preset operation commanded. . And this UD counter 6
0 is set as an up count in the fast-forward state in which the flip-flop circuit 23c is set, and the inter-music detection signal from the inter-music detection circuit 18 is counted. Then, the decoder 66 controls the NOR circuits 57a, 57b, . . . in accordance with this count value information.

Here, this decoder 66 has the signal
This is the output signal of the AND circuit 68 which is supplied with the signal from the OR circuit 67 along with AUTO, and the operating state is EN.
is set, and output signals from AND circuits 69 and 70 are supplied to OR circuit 67. The AND circuit 69 is given the equal signal from the comparator circuit 55 as a gate signal, and the output signal from the inverter 71 to which this equal signal is supplied is given to the AND circuit 70 as a gate signal. The AND circuit 69 is supplied with a signal from an OR circuit 72, and this OR circuit 72 is supplied with a signal from an inverter 73 to which the song interval detection signal is supplied, and further a signal from an AND circuit 74. The AND circuit 74 is supplied with a clock signal from a clock signal generator 75 in addition to the above-mentioned song interval detection signal, and this clock signal is further supplied to the AND circuit 70.

That is, in the tape playback device configured as described above, when an initial clear signal IC for setting an initial state is first applied, an output signal is generated from the OR circuit 26 via the OR circuit 27, and The reset of flip-flop circuits 23a-23c is confirmed. In this state, when a tape is loaded into the deck 13 and the rewind command switch 19b is operated to set the initial state of the tape, the flip-flop circuit 23b is set by the output signal from the differentiating circuit 20b. Then, the rewind display 24b is driven to display, and a reverse rotation command is given to the tape deck 13, and a high speed rotation command is given to the tape deck 13 via the OR circuit 44.
The loaded tape is run in the opposite direction, and the tape head position is set. In this case, in response to the rise of the signal from the OR circuit 44, a pinch roller pressure contact command is generated from the differentiating circuit 45, and the output of the OR circuit 44 also provides a reel brake release command, so that the reel brake is set to be released. The vehicle travels in the opposite direction as described above. In this manner, the tape is run in the opposite direction, and when the leading position becomes the reproduced portion, the tape is no longer run, the rotation signal falls, and the differentiation circuit 46 generates a stop detection signal. In this state, the flip-flop circuit 23
b is in the set state, a gate signal is given from the delay circuit 48 to the AND circuit 47, and therefore the rotation stop detection signal is sent to the AND circuit 47.
The output signal is extracted from the output signal and supplied to the OR circuit 26 as an autostop signal. Then, the flip-flop circuit 23b is reset and the rewind operation is completed.

When reproducing from this state by manual control, the switch 19f is not operated, but the trigger flip-flop 2 is activated by the initial clear signal.
8b is in the reset state, the play command switch 19a is operated. That is, the flip-flop circuit 23a is set by the output signal from the differentiating circuit 20a, and the flip-flop circuit 23a is
3 is given a pinch roller pressure contact command and a reel brake release command, and at the same time a normal rotation command is given from the OR circuit 43. That is, the tape is pressed against the capstan by a pinch roller and is run at a predetermined playback speed to perform a playback operation, and the playback signal is generated as sound from the speaker 16. When you want to stop this regeneration operation, press the stop command switch 1.
Operate 9d.

In such playback conditions, the signal for automatic
Since AUTO does not exist, the output of the AND circuit 39 is "0", and since the signal "1" is given from the inverter 50 to the OR circuit 51, the gate signal is given to the AND circuit 21, but Then, a pulse signal is generated from the differentiating circuit 20d in response to the operation of the switch 19d. This pulse signal is taken out via the OR circuits 27 and 26, resets the flip-flop circuit 23a, removes the pinch roller from the capstan, applies the reel brake, releases the forward rotation command, and stops the reproducing operation.

In addition, during a playback operation when the play switch 19a is operated, if you want to repeatedly play the part being played at that time, the repeat command switch 19e is activated.
operate. When this switch 19e is operated, the trigger flip-flop 28a is set by the output pulse from the differentiating circuit 20e, and the display 2
4d, AND circuits 35a, 35
A gate signal is now given to b. At this time, since the flip-flop circuit 23a is in the set state, when the song interval detection circuit 18 detects a song interval from the reproduced signal, an output signal is generated from the AND circuit 35a in response to the output pulse from the differentiating circuit 36.

The output signal from the AND circuit 35a is applied as a repeat signal to the OR circuit 26, which resets the flip-flop circuit 23a and stops the tape playback operation. After that, a signal is taken out from the delay circuit 37a, and the flip-flop circuit 23b is set via the OR circuit 22b.
The tape is rewound by the rewind operation as described above.

In such a rewinding process, when a detection signal is obtained from the song interval detection circuit, the AND circuit 35b
An output signal is obtained from the OR circuit 26 to reset the rewind storage flip-flop circuit 23b, and an output signal from the delay circuit 37b sets the flip-flop circuit 23a.
The playback play state is set again.

That is, the range of music to be played back when the repeat switch 19e set on the tape is operated is repeatedly played back. This repeat playback state is controlled by the stop command switch 19.
d until the trigger flip-flop 28a is reset.

Next, in the above-mentioned tape reproduction state, when performing an automatic music selection operation, the switch 19f is first operated to set the trigger flip-flop 28b. When the flip-flop 28b is set, the signal AUTO rises, a pulse signal is generated from the differentiating circuit 30, and the automatic music selection state is displayed on the display 34a. Here, since the music selection switches 11a, 11b, . . . have not been operated yet, the output signal from the OR circuit 32 is "0", and therefore the output signal from the
1 is given a gate signal. Therefore,
Along with the generation of the output signal from the differentiating circuit 30, a signal is output from the AND circuit 31, which sets the flip-flop circuit 23b via the OR circuit 22b, and also sets the initial wind command IW.
is generated. This initial wind command IW
sets the flip-flop circuit 64, gives a preset command to the UD counter 60 as described above, and sets the count value of the counter 60 to "1".

That is, in response to the operation of switch 19f,
While the UD counter 60 is set to "1",
By setting the flip-flop circuit 23b, the tape deck 13 is set to the rewind operation state as described above, and the tape is rewound. Then, upon completion of rewinding, the flip-flop circuit 23b is reset by a rotation detection signal from the differentiating circuit 46, and is brought into the initial reproduction state.

Then, in this state, the number of the song to be played is set using the song selection switches 11a, 11b, . The operating state of the switch 11c is detected by the encoder 52 and given to the UD counter 53 as information on the song number "3", and when the AND circuit 32 generates an output, this song number is preset in the counter 53. The preset count value information of the UD counter 53 is supplied to the comparison circuit 55 as comparison information B, and is also supplied to the decoder 56. At this time, since the signal (AUTO) is generated and no output signal is generated from the comparator circuit 56, an operation command is given to the decoder 56 from the AND circuit 58, and therefore the value corresponding to the count value of the counter 53 corresponds to the count value of the counter 53. The display device 12c is driven to display the song selection and song number.

On the other hand, the information of the count value "1" of the UD counter 60 is supplied to the comparator circuit 55 and the decoder 66, but since no matching signal is generated from the comparator circuit 55, the output of the inverter 71 is "1". 1'', and a gate signal is given to the AND circuit 70. Therefore, the clock signal from the oscillator 75 is transmitted to the AND circuit 70 and the OR circuit 6.
7, further taken out via an AND circuit 68 gate-controlled by the signal (AUTO), and sent to the decoder 6.
6 is controlled in response to a clock signal. Therefore, the display 12a of the song number corresponding to the count value of the counter 60 is driven to blink in response to the clock signal.

Here, the output signal of the AND circuit 32 becomes "1" and the output of the inverter 33 becomes "0", so the gate of the AND circuit 31 is closed and the initial wind command corresponding to the operation of the switch 19f is not generated. , has since been prohibited.

When the fast forward command switch 19c is operated in this state, the flip-flop circuit 23c is set by the output pulse from the differentiating circuit 20c. That is, in the case of the tape deck 13, the tape is made to run at high speed in the forward rotation direction, and at the same time, the UD counter 53,
Reference numeral 60 is set to an up counting state, and the counter 60 is incremented by the inter-track detection signal generated in response to tape running. Therefore, this counter 60 counts the song number of the corresponding performance song while the tape is currently being played, and this count value information is supplied to the decoder 66.
The current position of the tape is displayed by blinking on the indicators 12a, 12b, . . .

On the other hand, until the matching signal is output from the comparison circuit 55, the gate of the AND circuit 54 is closed, so the UD counter 53 is not incremented and continues to display the selected song number. Become.

In this way, the tape is run at high speed, and the counter 60 is incremented by the inter-song detection signal, and the tape is run up to the inter-song before the performance song recording section with track number "3". Then, the count value A of the counter 60 comes to match the preset count value B of the counter 53, and the comparison circuit 55 generates a coincidence signal of "A=B". This coincidence signal gives a gate signal to the AND circuit 54, and thereafter the counter 53
and 60 are simultaneously counted and incremented by the inter-track detection signal, the comparator circuit 55 maintains the "A=B" state, the gate of the AND circuit 58 is closed, the decoder 56 is rendered inactive, and the display will be performed from now on. vessel 12a,
12b... are controlled to be displayed by the decoder 66.

Here, upon generation of this coincidence signal, the gate of the AND circuit 70 is closed and a gate signal is given to the AND circuit 69. Therefore, when the inter-song detection signal from the inter-song detection circuit 18 is present, the gate of the AND circuit 70 is closed. The clock signal from the clock oscillator 75 is taken out from the AND circuit 74, and the decoder 66 is controlled by the clock. That is, when the tape is in the inter-track signal reproduction state, that position is displayed blinking. On the other hand, when the middle of a song on the tape is being reproduced, the song interval detection signal is "0", and the inverter 73 supplies a signal of "1" to the OR circuit 72. That is, the decoder 66
enters a continuous operation state, and the decoder 66 continues to display the display without blinking. Therefore, by these indicators 12a, 12b...
This not only allows you to know the number of the track being played on a tape, but also allows you to distinguish and display whether it is between tracks or in the middle of a track.

The coincidence signal from the comparison circuit 55 is further applied to the differentiating circuit 61, and a pulse signal is given to the AND circuit 40 in response to the rise of the coincidence signal. In this case, since the flip-flop circuit 23c is in the set state and the signal (AUTO) is being generated, the AND circuit 40 is given the gate signal from the AND circuit 39, and therefore the output pulse signal from the differentiating circuit 61 is is applied to the tape deck 13 via the OR circuit 41.
That is, the pinch roller pinches the tape between the stopped capstan and stops the tape. Correspondingly, the reel is also stopped, and a rotation stop detection signal from the differentiating circuit 44 causes the flip-flop circuit 23c to stop. is reset, and the tape is suddenly stopped. That is, the tape is stopped at the beginning of the recorded portion of the selected performance song, and the automatic song selection operation is completed. Then, if you operate the start command switch 19a in this state,
The playback performance begins from the designated portion of the song selection.

Thereafter, the tape playback operation is continued regardless of the detection of a song interval, but the counters 53 and 60 are simultaneously incremented each time a song gap is detected, and the state of generation of a coincidence signal from the comparison circuit 55 is maintained. Then, depending on the counting state of the counter 60, the decoder 66 displays the number of the song currently being played on the displays 12a, 12b, . . . . In this case, as described above, while the tape is being played back between songs, the display is in a blinking state.

If it is desired to stop the tape during this automatic music selection operation, the stop command switch 19d is operated. In this case, since the automatic music selection state is in effect and the flip-flop circuit 23c is in the set state, an output signal is generated from the AND circuit 39, and the output signal of the inverter 50 is held at "0". Therefore, the OR circuit 51 generates an output "1" only when the mid-song detection signal is generated from the mid-song detection circuit 17, and the output of the OR circuit 51 becomes "0" in the inter-song detection state. .

Therefore, even if the stop command 19d is operated, the gate of the AND circuit 21 is closed in the state of inter-music detection, and the stop command during inter-musical reproduction is prohibited.

In other words, a stop command is allowed only during a song. For example, even if the tape stops between songs as shown in Figure 3, TW1 is used from the stop position to the end of the song, _t3 . It is possible to set the operation for a sufficiently longer time, and it becomes possible to reliably detect and count the intervals between songs.

After such a stop operation, if the switch 19c is operated again to set fast forward, the simultaneous music selection operation will be performed. In this case, in this temporary stop state, it is possible to switch the song selection if the song is located ahead of the stop position.

As described above, according to the present invention, the stop control during the automatic music selection operation can be executed without affecting the music selection operation, and it is also possible to switch the music selection, thereby making automatic music selection more effective. be.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating a tape related to the present invention, FIG. 2 is a diagram illustrating a panel section of the tape reproducing device, and FIG. 3 is a diagram illustrating the state of inter-track stop control of the tape. FIG. 4 is a configuration diagram illustrating an automatic music selection device according to an embodiment of the present invention. 11a, 11b...music selection switch, 12a, 1
2b...display unit, 13...tape deck, 17...
...In-song detection circuit, 18...Song-interval detection circuit, 19
a, 19b... Command switch, 21... AND circuit (stop prohibition gate), 52... Encoder, 53, 60... Up/down counter, 55
... Comparison circuit, 56, 66 ... Decoder.

Claims (1)

[Claims] 1. An inter-song detection circuit for detecting from a running tape that the playback position is between two recorded sections of the tape, a means for detecting an inter-song detection signal from the circuit in an automatic song selection state, and this means. and a means for inhibiting a stop command signal based on the detection signal obtained in the above, and is characterized in that the tape stop operation is prohibited when the tape is being played between songs in the automatic music selection state. Automatic tape selection device.