JPS6013067Y2 - Tape recorder cueing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cueing device for a tape recorder.

Recorded signals recorded on a tape are not necessarily recorded continuously, but may be recorded with long blank sections, that is, unrecorded sections.

When reproducing such a tape, it takes a long time after the first recorded portion is played back until the playback operation of the next recorded portion with the blank area interposed is started.

For this reason, conventionally, when trying to quickly find the next recording part from the first recording part, you press the fast forward button to wind a certain section, then press the play button to check the position of the next recording part. In the past, manual operations were performed, such as fast forwarding again if the recording part was not yet located, and repeating the play operation, and then rewinding and performing the play operation if it had gone too far. Such an operation has the drawback of being laborious and time consuming.

Therefore, focusing on this point, as described in Japanese Patent Publication No. 42-18869 and Japanese Utility Model Publication No. 11340-1988, the unrecorded portion of the tape is automatically wound quickly and the next performance portion is started. Tape recorders are known that can be searched automatically and quickly.

However, in such tape recorders, the unrecorded portion of the tape is automatically detected to increase the tape running speed, and the next recorded portion is automatically detected and the tape running speed is kept constant. Since the structure is such that only the unrecorded portion of the screen is wound quickly, if you do not want to play the recorded portion that is currently being played or if you want to search for the desired recorded portion again, you can press the fast forward or rewind button or the play button as before. These methods have the drawback of being very complicated to operate.

The purpose of this invention is to automatically wind the unrecorded part of the tape quickly, to automatically and quickly search for the next performance part, and to automatically wind the recorded part quickly with a single-action manual operation during playback. To provide a cueing device for a tape recorder that can automatically and quickly search for the next performance part.

The present invention will be described in detail below with reference to the accompanying drawings.

The figure shows the configuration of an embodiment of a queuing device for a tape recorder according to the present invention.

In the figure, the playback signal from the playback head 1 is detected by a signal generation detection circuit 2 that detects the generation of the playback signal and generates an output when this signal is generated, and when a no-signal period from the playback head 1 continues for a predetermined period of time. Four of them are each supplied to a no-signal detection circuit 3 that generates an output.

The outputs of the signal generation detection circuit 2 and the no-signal detection circuit 3 are respectively supplied to two inputs of a two-state switching circuit 4 at the next stage.

The two-state switching circuit 4 selects the first state from the output of the signal generation detection circuit 2.
The state becomes, for example, a set state, and the output of the no-signal detection circuit 3 becomes a second state, for example, a reset state.

The output of the two-state switching circuit 4 is supplied to a control circuit 5 that controls the rotational speed of the motor 6.

The control circuit 6 is configured such that when the two-state switching circuit 4 is in the set state, the rotational speed of a capstan and a reel stand (not shown) that are linked to the motor 6 to transport the tape (not shown) is constant speed, that is, a normal speed. The rotational speed of the motor 5 is adjusted so that the rotational speed of the motor 5 is the same as that during the play operation, and so that the rotational speed of the capstan is, for example, about 2 to 4 times higher than the constant speed when the two-state switching circuit 4 is in the reset state. Control.

Therefore, the motor 6 is controlled by the control signal from the control circuit 5 so that the tape running speed is constant and high, and the tape is driven to run.

Further, by providing a switching circuit 7 consisting of a non-locking switch or the like that can reset the two-state switching circuit 4 by manual operation, it is possible to increase the rotational speed of the capstan even by manual operation.

Next, the operation of the queuing device according to the present invention configured as described above will be explained.

In the playback state of the tape recorder, when a portion of the tape where information is recorded passes the playback head 1, the signal generation detection circuit 2 is activated so that the playback head 1 reads this recorded information and generates a playback signal. The two-state switching circuit 4 is set to the set state.

Therefore, the control circuit 5 controls the rotational speed of the motor 5 so that the rotational speed of the capstan is constant.

Further, if there is a blank area, that is, an unrecorded area on the tape, the no-signal detection circuit 3 resets the two-state switching circuit 4 when the no-signal time from the playback head 1 continues for a predetermined time, and the control circuit 5 resets the two-state switching circuit 4. The rotational speed of the motor 5 is controlled so that the rotational speed of the capstan and the reel stand is high.

Here, the predetermined time refers to the interval between two people's conversation, etc., because if the information recorded on the tape is, for example, a conversation between two people, that information is not necessarily recorded continuously. The time is appropriately selected so that it will not be shortened.

When the blank section of the tape ends and the next recording section comes, the signal generation detection circuit 2 and the two-state switching circuit 4 operate in the same way as described above, and the control circuit 5 changes the rotational speed of the capstan and reel stand. The rotational speed of the motor 5 is controlled so that the motor 5 has a constant speed.

In addition, if you do not want to play the recorded part that is being played back, you can manually operate the switching circuit 7 once.
The two-state switching circuit 4 enters the reset state, causing the capstan to rotate at high speed, and when the next recording section comes, the two-state switching circuit 4 automatically enters the set state in response to the output of the second signal generation detection circuit. The next recorded portion is played back by rotating the capstan at a constant speed.

By repeating this operation, a desired recorded portion can be quickly searched for, and moreover, the recorded portion can be reliably reproduced from the beginning.

As explained above, according to the cueing device according to the present invention, the unrecorded portion of the tape can be automatically wound quickly, the next recorded portion can be quickly played back, and the If you do not want to play a recorded part, you can quickly shift to playing the next recorded part by manual operation.

Furthermore, it is possible to reduce idle time when listening to side A and side B over and over again.

Furthermore, according to the present invention, since the motor control system (two-state switching circuit 4 and control circuit 5) is shared between automatic and manual systems, a queuing device with a simple circuit configuration and low cost can be obtained. .

[Brief explanation of the drawing]

The figure is a configuration diagram of an embodiment of a cueing device for a tape recorder according to the present invention. Explanation of symbols of main parts, 1...Playback head, 4
...2-state switching means, 5...control circuit, 6...motor.

Claims (1)

[Scope of utility model registration request] a playback head, a signal generation detection circuit that generates an output when a playback signal of the playback head is generated, a no-signal detection circuit that generates an output when no signal from the playback head continues for a predetermined time, and a set state and a reset state. a two-state switching circuit which is formed from a bistable circuit having a set terminal and a reset terminal, a manual switching circuit, a motor for driving the tape; The motor is controlled to rotate at a constant speed, and
a control circuit that controls the motor to rotate at high speed when the two-state switching circuit is in a reset state, and an output of the signal generation detection circuit is connected to a set terminal of the two-state switching circuit;
By connecting the output of the no-signal detection circuit and the output of the switching circuit to the reset terminal of the two-state switching circuit, the output of the no-signal detection circuit switches the two-state switching circuit and the motor is switched to the control circuit. The unrecorded portion of the tape is automatically wound at high speed, and the two-state switching circuit is switched again by the output of the signal generation detection circuit, and the motor is controlled by the control circuit to wind the next part of the tape. is played back at a constant speed, and while the tape is being played back at a constant speed by the drive of the motor, the switching circuit is actuated by manual operation to switch the two-state switching circuit so that the motor is controlled by the control circuit. , the constant speed playback is wound at high speed, the two-state switching circuit is switched by the output of the signal generation detection circuit, the motor is controlled by the control circuit, and the next recording section of the tape is automatically switched to constant speed playback. A queuing device for a tape recorder, characterized in that it is configured to return to.