JPH0132227Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to an audio device that combines a tape recorder and a tuner, and particularly to a synchronized recording device for recording the received signal of the tuner on a tape recorder. Regarding improvements.

(B) Prior Art When recording a received signal from a tuner onto a magnetic tape, it is necessary to turn the tape recorder into a recording state at a desired timing while listening to the reproduced sound corresponding to the received signal from the tuner. However, especially in soft mechanism tape recorders in which the magnetic head is moved using the rotation of a motor, it takes a long time for the tape recorder to enter the recording state after the recording operation is performed, and the beginning of the recording may be cut off. The disadvantage was that it caused As a recording method for eliminating the cut-off, first, the tuner is activated and the tape recorder is put into a recording standby state while listening to the sound of the tuner, and then the tape recorder is released from standby at a desired timing to put the tape recorder into the recording state. There is a method to record the received signal of the tuner.

However, when the tuner is operated, the function switch is automatically switched to the tuner position, and when the tape recorder is operated, the function switch is automatically switched to the tape recorder position. In the device, when an operation is performed to put the tape recorder into the recording standby state as described above, the function switch is switched to the tape recorder position, and it is impossible to monitor the playback sound of the tuner and record the signal received by the tuner. It had the disadvantage that it became impossible to do so.

(c) Purpose of the invention The present invention has been made in view of the above points, and is a synchronization system that enables reliable and easy recording of received signals from a tuner onto a magnetic tape in an audio device having an autofunction function. The purpose is to provide recording equipment.

(d) Structure of the invention The synchronized recording device according to the invention includes a tuner, a tape recorder, a function switch that is switched to the tuner position when the tuner is activated and to the tape recorder position when the tape recorder is activated, and the tuner. means for switching the function switch once to the tape recorder position and then switching it again to the tuner position after a predetermined time has elapsed when the tape recorder is placed in a recording standby state during operation; and means for releasing the recorder from standby and placing it in a recording state.

(E) Embodiment Figure 1 shows an embodiment of the present invention.
2 is a tuner; 2 is a tape recorder; 3 is a band selection button of the tuner 1; 4 is a first signal generation circuit that generates a signal in response to pressing of the band selection button 3;
5 is a record button of the tape recorder 2; 6 is a second signal generation circuit that generates a signal in response to pressing of the record button 5; 7 is a function switching circuit; 8 is a power amplifier; and 9 is a speaker.

Now, when the band selection button 3 is pressed in order to receive the tuner 1, a signal notifying that the band selection button 3 has been pressed is generated from the first signal generation circuit 4, and this signal is transmitted to the tuner 1 and the function. It is applied to the switching circuit 7. Therefore, the function switch of the function switching circuit 7 is switched to the tuner position, and the received signal of the selected band is applied to the power amplifier 8 via the function switching circuit 7, and the sound is emitted from the speaker 9. Ru. In this state, when the recording button 5 of the tape recorder 2 is pressed, a signal notifying that the recording button 5 has been pressed is generated from the second signal generation circuit 6, which is transmitted to the tape recorder 2 and the function switching circuit 7. applied. Therefore, the function switch of the function switching circuit 7 is switched to the tape recorder position, and the tape recorder 2 starts recording operation. The tape recorder 2 has a recording button 5.
The motor rotates in response to the pressure, the capstan starts rotating accordingly, the slide base on which the magnetic head is mounted is driven by the motor, and the standby circuit is activated to enter a recording standby state. When the tape recorder 2 enters the recording standby state, a control signal is generated from the tape recorder 2, and the control signal is applied to the first control signal generation circuit 4. Therefore, a signal is generated from the first signal generating circuit 4, which is applied to the function switching circuit 7, and the function switch is switched to the tuner position again. In this state, the tape recorder 2 is in a recording standby state, and the received signal from the tuner 1 is applied to the power amplifier 8 via the function switching circuit 7.
Sound corresponding to the received signal is emitted from the speaker 9.

In the above state, if the band switching button 3 of the tuner 1 is pressed at the desired timing to record, a signal is generated from the first signal generating circuit 4, which is applied to the tape recorder 2, and the standby state is canceled and recording begins. state. Therefore, the reception signal of tuner 1 is applied to tape recorder 2 via function switching circuit 7 and line 10, and synchronized recording is achieved.

FIG. 2 shows a specific circuit of the function switching circuit 7.
is the gate control circuit 11 and the gate control circuit 11
It is composed of first and second gates 12 and 13 controlled by. The gate control circuit 11 has a first input terminal 14 to which the output signal of the first signal generation circuit 4 shown in FIG. 1 is applied, and a second input terminal to which the output signal of the second signal generation circuit 6 is applied. When a signal is applied to the first input terminal 14, a first gate signal is generated at the first output terminal 16, and when a signal is applied to the second input terminal 15, a second gate signal is generated at the second output terminal 17. A second gate signal is generated at the same time. In addition, the input terminal 18 of the first gate 12
The reception signal of the tuner 1 is applied to the input terminal 19 of the second gate 13, and the output signal of the tape recorder 2 is applied to the input terminal 19 of the second gate 13. Therefore, when the band selection button 3 of the tuner 1 is pressed, the gate control circuit 11
When the first gate signal is generated from the first output terminal 16 of the tape recorder 2, the first gate 12 becomes conductive, and the reception signal of the tuner 1 is obtained at the output terminal 20, and the recording button 5 of the tape recorder 2 is pressed. A second gate signal is generated from the second output terminal 17 of the gate control circuit 11, the first gate 12 is cut off, and the second gate signal is generated.
The gate 13 becomes conductive and the output signal of the tape recorder 2 is obtained at the output terminal 20. When the recording button 5 is pressed, it is not necessary to switch the function switching circuit 7, but when recording, the playback button must be pressed at the same time, so the function will inevitably be switched as well.

FIG. 3 shows a specific circuit example of the tape recorder 2, showing a switch 21 that is closed when the recording button 5 is pressed, and a drive circuit that generates a drive signal when the switch 21 is closed. 22, and first and second circuits that are turned on in response to the output signal of the drive circuit 22.
A motor 25 rotated by the transistors 23 and 24 and the collector current of the second transistor 24.
a slide switch 26 that is switched when the motor 25 rotates and the slide base reaches the recording position; a control circuit 27 that generates a control signal in response to switching of the slide switch 26; and an output of the control circuit 27. The shorting transistor 28 is turned on in response to a control signal and connects the base of the first transistor 23 to ground.

In order to make the tape recorder 2 perform the recording operation,
When the recording button 5 is pressed, the switch 21 is closed and a DC voltage (+B ₂ ) is applied to the drive circuit 22.
Therefore, an output signal is generated from the drive circuit 22, which is applied to the base of the first transistor 23,
The first transistor 23 is turned on. When the first transistor 23 is turned on, the second transistor 24 is also turned on, the motor 25 rotates, and the slide base is moved. Then, when the slide base moves to a predetermined position and the magnetic head reaches the recording position, the slide switch 26 is driven by the motor 25 and is switched to the recording position opposite to that shown. When the slide switch 26 is switched to the recording position, a DC voltage (+B ₂ ) is applied to the control circuit 27, and an output signal generated from the control circuit 27 is applied to the base of the shorting transistor 28. Therefore, the shorting transistor 28 is turned on, and the base of the first transistor 23 is grounded and turned off, thereby stopping the rotation of the motor 25. This state is the recording standby state.

As mentioned earlier, when the recording button 5 is pressed, the function switching circuit 7 is switched to the tape recorder position, but when the slide switch 26 is switched to the recording position, a DC voltage is generated at the terminal 29, which is the first Since it is applied to the first signal generating circuit 4 in the figure,
An output signal is generated from the first signal generation circuit 4,
The function switching circuit 7 is switched to the tuner position again, and the speaker 9 emits reproduced sound according to the signal received by the tuner 1.

When the band selection button 3 is pressed at a desired timing while listening to the reproduced sound from the tuner 1, an output signal is generated from the first signal generation circuit 4 and is applied to the terminal 30. The terminal 30 is connected to a control circuit 27 composed of, for example, a flip-flop circuit.
When a signal is applied to the terminal 30, the output signal of the control circuit 27 is stopped and the shorting transistor 28 is turned off. Therefore, the first and second transistors 23
and 24 are turned on again, the motor 25 rotates, and the recording operation of the tape recorder 2 is started. Therefore, the signal received by the tuner 1 can be recorded by the tape recorder 2.

(f) Effects As described above, according to the present invention, the function switching circuit is switched to the tuner position in response to the tape recorder entering the recording standby state, and in response to the operation for starting recording of the tape recorder. Since the tape recorder is released from the recording standby mode, reliable synchronized recording can be achieved and the recorded signal can be monitored.
Furthermore, there is no need to add special circuits to the tuner and tape recorder, and the synchronized recording can be achieved by simply setting the control signals between the two to a predetermined value, so the structure is simple.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a specific example of the function switching circuit, and FIG. 3 is a circuit diagram showing a specific example of the tape recorder shown in FIG. 1. It is. Explanation of the main drawing numbers: 1...Tuner, 2...Tape recorder, 4, 6...Signal generation circuit, 7...Function switching circuit.

Claims (1)

[Scope of utility model registration request] Equipped with a tape recorder for recording and playing magnetic tape and a tuner for receiving radio broadcasts,
In an audio device in which output terminals of the tape recorder and tuner are selected by switching a function switch, the function switch changes the output terminal from the tuner position to the tape recorder position when the tuner is activated and the tape recorder is recorded. When the tape recorder enters a recording standby state, the tape recorder is switched to the tuner position again, and in response to the tuner's band selection operation, the tape recorder is released from standby and enters the recording state, and the tuner's reception A synchronized recording device characterized in that a signal is recorded by the tape recorder.