JP2548437Y2 - Music tape cueing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music tape cueing device for cueing a music tape in a cassette tape recorder.

[0002]

2. Description of the Related Art FIG. 2 shows an example of the configuration of a conventional music tape cueing apparatus. In the figure, 1 is a head, 2 is an amplifier, 3 is a switch group, 4 is a motor drive device, 5 is a motor, 6 is a music detection circuit, 7 is a microcomputer, 1
3 is a switch, 14 is a power amplifier, and 15 is a speaker. When the cueing is instructed by the switch group 3, the microcomputer 7 switches the switch 13 to the off state to interrupt the signal from being input to the speaker 15. Until you receive
The motor 5 for rotating the reel of the cassette tape is driven to perform cueing.

[0003]

In the conventional music tape cueing apparatus as described above, the sound is interrupted during the cueing operation, and when the cueed music is reproduced, the overrun is performed at the time of cueing. However, there is a problem that it takes extra time to rewind the tape portion. The present invention has been made to solve the above-mentioned problem, and can reproduce an audio signal during a cue operation, and does not need to rewind the tape when reproducing the cue music. It is intended to provide a dispensing device.

[0004]

SUMMARY OF THE INVENTION A music tape cueing device of the present invention is a digital signal having a memory capable of A / D converting a sound signal of a tape running at the time of cueing operation through a low-pass filter and reading and writing. A means for sampling by a processing circuit, buffering, D / A converting, and reproducing through a low-pass filter is provided.

[0005]

FIG. 1 shows an embodiment of the present invention. 2, the same reference numerals as those in FIG. 2 denote the same or corresponding components, 8 is a low-pass filter, 9 is an A / D converter, 10 is a digital signal processing circuit, 11 is a readable and writable memory,
Reference numeral 12 denotes a D / A converter. The audio signal input from the head 1 is amplified by the amplifier 2 and sent to the switch 13, the music interval detection circuit 6, and the low-pass filter 8. During normal reproduction, the switch 13 is in a conductive state as shown in the figure, and the amplified audio signal is further amplified by the power amplifier 14 and reproduced by the speaker 15.

When the cueing is instructed by the switch group 3, the switch 13 is switched by the microcomputer 7, and the audio signal amplified by the amplifier 2 passes through the low-pass filter 8 and is A / D converted by the A / D converter 9. The buffered audio information is buffered in a memory 11 that can be read and written by the digital signal processing circuit 10, and is buffered by the digital signal processing circuit 10.
Is output to the D / A converter 12 according to the instruction from the
The data is D / A converted by the converter 12, smoothed by the low-pass filter 8, and reproduced.

When the head of the music or the space between the music is detected by the music interval detection circuit 6, a detection signal is sent to the microcomputer 7, the drive of the motor 5 is stopped by the microcomputer 7, and the cueing operation is released. . The rotation speed and direction of the motor 5 driven by the motor drive circuit 4 are controlled by the microcomputer 7.

[0008]

[Effect of the invention] As described above, according to the invention,
The audio signal recorded on the tape running during the cueing operation can be used as an audible audio signal, and it can be played back, and when playing the cueed song, the tape over at the time of cueing There is an advantage that extra operation time such as rewinding for a run is not required.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an example of a conventional music tape cueing apparatus.

[Explanation of symbols]

 6 music detection circuit 7 microcomputer 8 low-pass filter 9 A / D converter 10 digital signal processing circuit 11 readable / writable memory 12 D / A converter

Claims (1)

(57) [Scope of request for utility model registration] 1. A cue tape for a cassette tape recorder is driven by a motor for rotating a reel of the cassette tape until a microcomputer receives a detection signal from a music interval detection circuit in accordance with an instruction from a switch group. The audio signal of the tape running during the cueing operation is A / D converted through a low-pass filter, sampled and buffered by a digital signal processing circuit having a readable and writable memory, A music tape cueing device comprising means for performing D / A conversion and reproducing through a low-pass filter.