JPH0562288A - Reproducing device - Google Patents

Abstract

PURPOSE:To speedily respond to the request in which a sudden necessity is risen to switch from listening to the reproduced sound to the external sound in a reproducing device which utilizes a headphone to listen to a reproduced sound output. CONSTITUTION:Only when any one of the operation switches 5a to 5c and 7a to 7c, which input normal operational commands such as a reproduction and a stop, is operated for less than a prescribed duration, the device interrupts the reproduction operation in accordance with the input and a reproduction interruption control section 9, which starts a production operation in accordance with the same next input operation, is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus such as a headphone stereo for listening to reproduced sound output through headphones.

[0002]

2. Description of the Related Art Conventionally, in the case of urgently needing to pay attention to the sound of the outside world, for example, when approaching a railroad crossing or an intersection while enjoying music played on a portable headphone stereo, Remove the headphones from your ears,
The purpose is achieved by operating the stop button to stop the playback operation of the headphone stereo, or operating the volume to lower the volume.

[0003]

However, in the conventional reproducing apparatus of this kind such as the headphone stereo described above,
Even if it is urgent to pay attention to the sound of the outside world, you cannot switch the target of listening from the reproduced sound to the sound of the outside world unless you remove the headphones from the ear or operate the stop button or the volume, so turn the stop button or volume. There is a problem that it takes time to search, and it is not possible to respond enough in an emergency.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a reproducing apparatus in which a reproduced sound output is listened to by headphones, and even if it is urgent to switch the object of listening from the reproduced sound to the sound of the outside world, it can be dealt with promptly. It is to provide a reproducing device that can perform.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a reproducing apparatus adapted to listen to reproduced audio output through headphones,
Only when any one of the operation switches for inputting a normal operation command such as reproduction and stop is operated for a predetermined time or less, the reproduction operation is interrupted in response to the input, and the next It is characterized in that a reproduction interruption control means for restarting the reproduction operation in response to the same input operation is provided.

[0006]

According to the present invention, when any one of the operation switches for inputting the normal operation command is operated for a predetermined time or less, the reproduction operation is interrupted. The playback operation can be quickly interrupted without wasting time such as searching for, and the listening target can be immediately switched from the playback sound to the external sound in an emergency. Resuming the reproduction operation can be achieved by performing the same short-time input operation again.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a schematic structure of a reproducing apparatus according to an embodiment of the present invention.

This reproducing apparatus is a portable headphone stereo in which the reproduced sound output outputted from the power amplifier 4 is heard by the headphone 6, and reproduces a reproduced signal read by the reproducing head 1 from a magnetic tape (not shown). The preamplifier 2 is used for amplification, the level of the reproduction signal is adjusted by the volume 3 of the next stage, and the output obtained by amplifying the level-adjusted audio signal by the power amplifier 4 of the next stage is viewed on the headphones 6. It is configured.

On the main body side of the reproducing apparatus, a play operation switch for inputting and operating a command such as reproduction, stop, fast forward / rewind, etc. from the outside to a mechanism control unit 8 for controlling a mechanism unit such as a capstan motor 12. 7a, a stop operation switch 7b, and a fast forward / rewind operation switch 7c are provided. Further, in the middle of the cord connecting the main body of the reproducing apparatus and the headphones 6, there is provided a remote control unit 5 including operation switches 5a, 5b, 5c for inputting the above-mentioned commands by remote operation. ..

The reproduction interruption control unit 9 is a circuit for controlling the interruption of the reproduction operation and the cancellation of the reproduction interruption according to the input from the operation switches 7a, 7b, 7c on the main body side.

The reproduction interruption control section 9 is composed of two transistors Q1 and Q2 and a control circuit 10 for controlling the ON / OFF of these transistors Q1 and Q2.

The transistor Q1 is for cutting off the input of the reproduced voice signal to the power amplifier 4, its collector is connected to the input terminal of the power amplifier 4, and its emitter is grounded. The transistor Q2 is for giving a motor stop command to the motor control circuit 11 which controls the start / stop of the capstan motor 12, the collector of which is connected to the motor control circuit 11 and the emitter of which is grounded.

The control circuit 10 includes the operation switches 7a,
When a predetermined time T1 (for example, 0.1 seconds) or less is input by 7b or 7c, it is determined as a reproduction interruption command or a reproduction interruption cancellation command, and each of the transistors Q1 and Q2.
It is a circuit for giving a control signal to the base of.

The above-mentioned operation switches 7a, 7b, 7
In order to instruct the normal normal operation by c, it is set so as to require a fixed time T2 (for example, 0.2 seconds) longer than the maximum permissible time T1 for inputting the above-mentioned reproduction interruption and interruption cancellation commands. There is.

FIG. 2 is a timing chart showing the operation of the reproducing apparatus. The operation of the reproducing apparatus will be described below with reference to this timing chart.

As shown in FIG. 2A, when the play operation switch 7a (5a) is turned on for a predetermined time T2 or more,
The input is determined by the mechanism control unit 8 as a reproduction command, and the mechanism control unit 8 performs the reproduction operation so that the capstan motor 1
2. The other mechanical parts are activated to start the reproducing operation.

Further, at the time of reproducing operation or fast forward / rewind, as shown in FIG. 2 (b), the stop operation switch 7b (5
When b) is turned on for a certain period of time T2 or more, the input is determined to be a stop command by the mechanism control unit 8, and the mechanism control unit 8 controls the mechanism unit to perform the stop operation and stops the operation until then. Be done.

Further, as shown in FIG. 2 (c), fast forward /
When the rewind operation switch 7c (5c) is turned on for a predetermined time T2 or more, the input is determined by the mechanism control unit 8 as a fast forward / rewind command, and the mechanism control unit 8 causes the mechanism unit to perform fast forward / rewind. Controlled by.

On the other hand, in the middle of the reproducing operation, when it is urgently necessary to pay attention to the external sound, each of the operation switches 5a-5
c, 7a to 7c, any one of them, for example, FIG.
When the play operation switch 7a (5a) is turned on for a certain period of time T1 or less as shown in, the control circuit 10 of the reproduction interruption control unit 9 determines that the input is a reproduction interruption command, and the control circuit 10 causes the transistors Q1 and Q2 to be turned on. A high level signal is input to the base of the
1, Q2 are switched from the off state to the on state.

As a result, the input terminal of the power amplifier 4 is grounded via the transistor Q1 and the reproduced voice signal is not input to the power amplifier 4. That is, the reproducing device enters the muting state, and the output of the reproduced sound from the headphones 6 is interrupted. The input terminal of the motor control circuit 11 is grounded through the transistor Q2, and the input to the motor control circuit 11 is switched from high level to low level. In response to this, the motor control circuit 11 turns the capstan motor 12 on. Stop.

When it is desired to cancel the reproduction interruption state, any one of the operation switches 5a to 5c and 7a to 7c,
For example, as shown in FIG. 2B, when the stop operation switch 7b (5b) is turned on for a fixed time T1 or less,
The control circuit 10 of the reproduction interruption control unit 9 judges that the input is a reproduction interruption cancellation command, and the control circuit 10 causes the transistor Q
The signals input to the bases of the Q1 and Q2 are switched from the high level to the low level, so that the transistors Q1 and Q2 are switched from the ON state to the OFF state. As a result, the reproduced audio signal is directly input to the input terminal of the power amplifier 4. The input to the motor control circuit 11 is switched from low level to high level, and in response to this, the motor control circuit 11 activates the capstan motor 12. That is, the reproduction suspended state is released and the reproduction state is restored.

Similarly, thereafter, as shown in FIG. 2C, for example, the fast forward / rewind operation switch 7c (5c).
When the switch is turned on for a fixed time T1 or less, the playback is suspended again. As shown in FIG. 2A, when the play operation switch 7a (5c) is turned on for a fixed time T1 or less, the playback is suspended. Is released.

[0023]

As described above, according to the reproducing apparatus of the present invention, the reproducing operation is interrupted when any one of the operation switches for inputting the normal operation command is operated for a predetermined time or less. However, since the playback suspension is canceled by performing the input operation again for the same fixed time or less, the playback operation can be quickly suspended without wasting time such as searching for a specific operation switch. In an emergency, it is possible to immediately switch the listening target from the reproduced sound to the external sound.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a timing chart showing the operation of the reproducing apparatus.

[Explanation of symbols]

 5a, 7a Play operation switch 5b, 7b Stop operation switch 5c, 7c Fast forward / rewind operation switch 9 Playback interruption control section

Claims (1)

[Claims] 1. A reproducing apparatus adapted to listen to reproduced audio output through headphones, wherein any one of operation switches for inputting a normal operation command such as reproduction and stop is input for a predetermined time or less. The reproducing apparatus is provided with a reproducing interruption control means for interrupting the reproducing operation only in response to the input and restarting the reproducing operation in response to the next same input operation.