KR970003494Y1 - Tempo controller for karaoke - Google Patents

Abstract

None.

Description

Tempo playback device of electronic song half cycle

1 is a block diagram of a tempo reproducing apparatus according to an embodiment of the present invention.

2 is a waveform diagram according to FIG.

* Explanation of symbols for main parts of the drawings

10: disc 20: pickup device

30: motor 40: video signal separation unit

50: sound signal separation unit 60: servo unit

70: A / D converter 80: memory

90: D / A converter 100: system control unit

110: key input unit 120: sound compensation unit

130: signal holder 140: switching means

The present invention relates to a tempo reproducing apparatus in an electronic song half cycle, and more particularly, to a tempo reproducing apparatus in which the user can change the song speed according to taste.

Electronic karaoke cycles such as conventional Karaoke or Laser Disk Player have key control function that can be changed to the desired pitch, but function that cannot change the playback speed according to the tempo of the user There was no inconvenience to adjust the song speed according to the user's taste.

Accordingly, an object of the present invention is to provide a tempo reproducing apparatus capable of varying the tempo speed of a song according to a user's taste in order to solve the above problems.

In order to achieve the above object, an electronic song half-cycle tempo reproducing apparatus comprising: a key input unit for inputting a user's tempo speed command; An acoustic compensator for delaying a predetermined section when the acoustic signal is jumped by the tempo velocity command of the user; When the tempo speed command is applied from the key input unit, it is characterized in that it comprises a control unit for controlling the tempo fast or slow by repeatedly switching the normal playback and jump playback.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a tempo reproducing apparatus according to an embodiment of the present invention.

In FIG. 1, a disk 10, a pickup device 20 for picking up information recorded on the disk 10, a coater 30 for rotating the disk 10, and a pickup device 20 A video signal separating unit 40 and an audio signal separating unit 50 for separating the picked up video signal and an audio signal, an analog / digital converter 70, a memory 80 for storing image information, and a digital / A servo unit 60 for controlling focusing and tracking of the analog converter 90 and the pickup device 20, and controlling the rotation of the motor 30, a key input unit 110 for applying a user's control command, and a sound. A sound signal compensator 120 for delaying the signal by a predetermined section and a system controller 100 for controlling the entire system and controlling a reproducing operation according to the tempo.

The sound signal compensator 120 includes switching means 140 for switching the normal playback signal and the tempo playback signal, and a signal holder 130 for hoisting the signal for a predetermined period during tempo playback.

When a control command according to the normal playback is applied from the key input unit 110, the system controller 100 controls the normal playback operation. The servo unit 60 picks up the recorded information from the disc 10 by focusing and tracking control of the pickup device 20 by the normal reproducing operation control. The picked-up information is separated from the video signal and the audio signal through the video signal separation unit 40 and the audio signal separation unit 50, respectively, and the switching means 140 of the audio compensation unit 120 has a reference contact So. A sound signal is output by connecting to the first selection contact S1.

If the control command according to the tempo reproduction is applied from the key input unit 110, the system controller 100 performs a control operation according to the tempo reproduction. That is, the operation is repeatedly performed for a predetermined time. In addition, the switching means 140 of the acoustic signal compensator 120 controls the reference contact So to be connected to the second selection contact S2.

At this time, the video signal separated by the video signal separator 40 is converted into a digital signal so that it can be stored in the memory 70. Since the video signal is not normalized and output instantaneously when the jump operation is performed, the video signal is output to the video information stored in the memory 80 under the control of the system controller 100. The output image information is converted into an analog signal by the D / A converter 90 and output. In this case, the jump time is set to the instantaneous time that is not recognized by humans.

On the other hand, the sound signal is a phenomenon that the sound corresponding to the jump operation section is cut off when the jump playback operation occurs, in this case, the sound compensator 120 compensates. In other words, the moment that the sound is cut by the signal holder 130 is held (Hold) and delayed.

2 shows a waveform diagram according to FIG. 1.

FIG. 2 (a) shows waveforms for normal reproduction and jump reproduction. FIG. 2 (b) shows waveforms in which sound is cut off during jump operation. FIG. 2 (c) shows acoustic compensation unit 120. FIG. Shows a signal compensated for

When the tempo reproducing command is applied from the key input unit, as shown in FIG. 2 (a), the normal reproducing is performed for about 1 second and the jumping signal is repeated for about 0.1 second. During the jump operation, the sound is cut and output as shown in FIG. 2 (b).

The sound cut portion is processed by the sound compensator 120 to be delayed and output as shown in FIG.

As described above, the present invention has an effect of reproducing the tempo according to the user's taste by varying the playback speed of the disc.

Claims (3)

A key for applying a tempo speed command of a user in an electronic song half cycle including a disk 10, a pickup device 20, a motor 30, an image signal separator 40, and an acoustic signal separator 50. Key input unit 110 having a; An acoustic compensator 120 for delaying a predetermined section when the acoustic signal jumps by the user's tempo speed command; And a control unit (100) for controlling the tempo quickly or slowly by repeatedly switching between normal play and jump play when the tempo speed command is applied from the key input unit (110). The tempo reproducing apparatus according to claim 1, wherein the tempo reproducing apparatus includes a memory (80) which temporarily stores the image information during the jump reproducing operation and outputs the image information stored in the jumping operation section. The sound compensation unit 120 of claim 1, further comprising: a signal holder (130) for delaying by holding a portion of the sound signal cut off during a jump regeneration operation; Tempo regeneration device, characterized in that consisting of the switching means for switching the normal regeneration operation and the tempo regeneration operation.