KR100198341B1 - Auto dubbing method of compact disc output - Google Patents

Abstract

The present invention relates to a tape editing copying technique in an audio system equipped with a compact disc player and a cassette tape player.

When a song recorded on a CD is copied and edited on a tape, there is a problem that the song is cut off or the waiting time is generated when the back side is played according to the running time difference between the tape A and B sides.

According to an aspect of the present invention, there is provided a method for controlling a cassette tape cassette, comprising: reading performance time information of a recorded music piece recorded on a CD in accordance with a disc-to-tape automatic edition copy function setting by a key input unit; A step of calculating a total play time of these A and B planes by calculating a CD music to be inserted into the A and B sides of the tape respectively and calculating a time difference therebetween; A step of calculating an empty interval between curtains on the A plane and the B plane so that the recording intervals on both sides are the same based on the interval between the curves obtained on the basis of the intervals between the curves on the A plane and the B plane, The method of claim 1, further comprising the steps of:

The effect of the present invention is that the problem of waiting time at the first part of the tape or starting the play from the middle when the tape is copied and reproduced is solved.

Description

How to copy auto-editing of compact disc output

The present invention relates to audio copying in an audio system including a compact disc reproducing apparatus and a cassette tape recording / reproducing apparatus. More particularly, the present invention relates to audio copying The end point of the last song recorded on the first side of the cassette tape and the start point of the first song recorded on the second side of the tape are automatically matched and edited to be copied so that the tape is reproduced when the tape is reproduced. The present invention relates to a method for automatically editing and copying a compact disc reproduction output, which can fundamentally eliminate a problem of a cut-off phenomenon of a start song at the time of switching the reproduction surface or an occurrence of an unnecessary waiting time for starting song reproduction.

1, when a compact disk control signal input from the key input unit 43 is input to the microcomputer 30, the microcomputer 30 controls the motor 31 to drive the microcomputer 30, And outputs a control signal.

Accordingly, the driving motor 32 for rotating the turntable 33 on which the compact disk 34 is placed is controlled to be rotated by the driver 31. [

In this way, the compact disc 34 is rotated and the audio digital signal of each track detected by the pickup device 35 is applied to the focus and tracking controller 37 via the amplifier 36.

The focus and tracking controller 37 provides the position control information to the actuator 38 side that determines and controls the position of the pickup device 35 based on the digital signal to be input, To the microcomputer 30 side.

The microcomputer 30 outputs a digital reproduction signal on the input compact disc to a digital signal processor (DSP)

The digital sound signal processed by the digital signal processor 39 is input to a digital-to-analog converter (DAC) 40 where the digital audio signal is converted into an analog audio signal and output.

The analog sound signal output from the digital-to-analog converter 40 is amplified through the output amplifier 41 and output to the speaker 42.

The audio signal of the compact disc reproduced and output in this manner can be recorded and copied directly on the cassette tape.

However, since the running time of the songs recorded on the compact disc is different, the running time of about 60 minutes instead of the song is simply divided into two based on the middle point. In most cases, It becomes.

Therefore, when copying the contents of the music program recorded on the compact disc to the cassette tape, the music is usually copied on the basis of the music of the central portion.

As a result, the running time of the A side and the B side of the cassette tape is inevitably changed.

For example, if the total running time of the music recorded on the A side of the audio cassette tape is 27 minutes and the total running time of the music recorded on the B side is 30 minutes, (Auto-reverse function) occurs and the B-side reproduction operation is performed. In this case, a problem arises that the music is reproduced from the middle of the music recorded on the B-side.

An object of the present invention is to provide a method and apparatus for recording and reproducing a song on a compact disc by making the end portion of the song recorded on the A side of the tape coincide with the beginning portion of the first song on the B side, And the first portion of the first track recorded on the A-side is matched with the first portion of the first track recorded on the A-side.

The feature of the present invention resides in that when a song on a compact disc is copied and edited on a cassette tape, the microcomputer first reads the reproduction time information of all songs recorded on the compact disc, And a step of recording the end portion of the tune recorded on the side A and the beginning portion of the tune to be recorded on the side B of the tape and the end portion of the tune recorded on the side B of the tape, A step of calculating an inter-curtain spacing period so as to match the first part and setting an editing condition; and a step of executing copying with inter-curtain spacing according to the editing condition.

1 is a circuit block diagram of a compact disc player equipped with an audio system.

2 is a configuration diagram of a control circuit of a compact disc and a cassette tape player for executing automatic edit copying in accordance with the present invention.

3 is a flow chart for explaining an operation procedure of the present invention.

Description of the Related Art [0002]

30: Microcomputer 31: Motor driver

32: drive motor 35: pickup device

36: amplifier 37: focus and unit controller

38: Actuator 39: Digital signal processor

40: digital-to-analog converter 41: output amplifier

43: key input unit 44: servo unit

45: Deck section 46: Recording section

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

2 shows a circuit configuration of an audio system equipped with a compact disc player and a cassette tape player for carrying out the present invention.

The microcomputer 30 is connected to the microcomputer 30 so that the compact disc control signal and the cassette tape control signal from the key input unit 43 according to the function selection of the audio system user are input.

In the microcomputer 30, a control signal is outputted to the driver 31, the servo unit 44, and the deck unit 45 side.

The driving motor 31 for rotating the turntable 33 on which the compact disc 34 is placed is rotatably connected by the driving unit 31. [

An audio digital signal of each track detected by a pickup device 35 using a laser beam during rotation of the compact disc 34 is applied to the focus and tracking controller 37 via an amplifier 36. [

The focus and tracking controller 37 connects the control value that determines the position of the pickup device 35 to the actuator 38 side so as to be provided as position control information based on the inputted digital signal, ) Is connected to the digital signal processor 39 through the microcomputer 30 so that the digital audio signal is transmitted to the digital signal processor 39.

The digital sound signal processed in the digital signal processor 39 is input to a digital-to-analog converter (DAC) 40 where the digital audio signal is converted into an analog audio signal.

The analog sound signal output from the digital-to-analog converter 40 under the control of the microcomputer 30 is amplified while passing through the output amplifier 41 and connected to be output to the speaker 42, Is also applied to the recording unit 46 side for recording the audio signal on the cassette tape.

An automatic editing copying method for matching an accurate reproduction point when copying a compact disc output according to the present invention based on the hardware configuration of the audio system onto a cassette tape will be described with reference to FIG.

In order to copy music songs reproduced and outputted from the compact disc onto the cassette tape, first, the execution of the automatic editing copy function is inputted to the microcomputer 30 through the key input unit 43 of the audio system.

The microcomputer 30 outputs control signals to the driver 31 for driving the compact disc, the servo unit 44 for controlling cassette tape recording and the deck unit 45, At the same time, the program shown in Fig. 3 is executed.

First, when a key input signal for executing a CD-tape auto-editing copying operation is input to the control microcomputer 30 of the audio system, the microcomputer 30 performs a western routine step of reading the entire record information held by the compact disc 34 .

Thus, the microcomputer has the number of pieces of music recorded on the compact disc, and the playing time information.

It is determined whether there is an instruction to execute the tape editing mode following the execution of the above subroutine step.

If there is no command to execute the tape editing mode, the simple CD playback mode is executed without performing the automatic editing copying according to the present invention. On the other hand, if there is an instruction to execute the tape editing mode, the subroutine for determining the type of the cassette tape is executed.

The above cassette tape type determination step refers to a step of determining the length of the tape, that is, the reproduction or recording time information.

Then, steps A and B are performed to set how the songs recorded on the CD are arranged on the A side and the B side of the cassette tape and recorded.

In the above step, a judgment is made as to which of the A and B surfaces the tune of the intermediate portion is to be recorded.

In the next step, it is judged whether or not the recording time difference between the A-plane and the B-plane generated in this step is plus (or minus) from the step of calculating the time difference of the A and B plane insertion tones based on the previous stage Step.

If it is determined that the total time of the pieces of music to be recorded on the B side of the cassette tape is longer than the total time of the pieces of music to be recorded on the A side, the time difference is divided by the total number of pieces of music to be recorded on the A side, As the inter-curtain vacancy time of the inter-curtain space.

On the contrary, if it is determined that the total time of the pieces of music to be recorded on the A side of the cassette tape is longer than the total time of the pieces of music to be recorded on the B side, the time difference is divided by the total number of pieces of music to be recorded on the B side, Intermittent blank time is executed.

The data relating to the number of pieces of music to be recorded on the side A and the side B of the cassette tape obtained by executing the above two steps and the intervals between the closed spaces can be obtained. Based on this data, music songs recorded on the compact disk It will be edited and copied on the cassette tape through the process to be described.

The microcomputer 30 having data related to the number of songs on the compact disk to be recorded on the A-side and B-side of the cassette tape and the gap-free period of the cassette tape through the execution of the above- And outputs a control signal.

The driving motor 32 for rotating the turntable 33 on which the compact disc 34 is placed is rotationally controlled by the driver 31. [

When the compact disc 34 rotates in this manner, the optical pickup device 35 detects the audio signal of the digital component recorded on each track, and the audio digital signal of each track obtained at this time is amplified by the amplifier 36, And is then applied to the focus and tracking controller 37.

The focus and tracking controller 37 generates a control output for determining the feeding position of the pick-up device 35 on the basis of the digital control signal in addition to the input digital audio signal to provide position control information on the actuator 38 side do.

Thus, the actuator 38 controls the position of the optical pickup 35.

Meanwhile, the digital audio signal read by the pickup device 35 is transmitted to the digital signal processor 39 via the microcomputer 30.

The digital sound signal processed by the digital signal processor 39 is input to a digital-to-analog converter (DAC) 40 where the digital audio signal is converted into an analog audio signal and output.

A part of the analog sound signal output from the digital-to-analog converter 40 is directly output to the recording unit 46 for recording on the cassette tape and the other part is amplified while passing through the output amplifier 41, ).

At this time, the microcomputer 30 outputs a drive control signal for copying music songs to the servo unit 44 for tape driving and the deck unit 45 side.

The steps of reproducing the CD from the A side of the tape through the recording start of the cassette tape and the reproducing operation of the CD are performed with a predetermined interval between the tunes recorded in the compact disk.

When the last song of the A side is recorded by executing the step of recording the reproduction output of the compact disk on the A side of the cassette tape, the microcomputer sets a time delay by the blank period if there is a gap free period on the A side And enters the B-side copy recording mode if there is no inter-gap free period on the A-side.

On the other hand, if a predetermined number of songs are recorded and copied on the A side of the tape whether or not there is a gap-free period, the B side recording copy mode of the tape is immediately executed.

The step of editing and copying the songs recorded on the remaining compact disc on the B side of the cassette tape is the same as the above-described A side recording method of the tape.

That is, in order to continuously copy the remaining songs on the compact disk to the B side of the cassette tape, the microcomputer pauses the compact disk during the auto reverse function switching time of the tape after completing A side editing of the tape, And controls the execution of the edit copy of the remaining recorded songs of the compact disc paused from the first portion of the B side corresponding to the end portion of the last track.

Similarly, when the reproduction output of the compact disc is recorded on the B side of the cassette tape, the end of the last piece of the music to be copied on the B side is recorded on the A side And the first part of the music being played.

On the other hand, when the last song of the B side is recorded by executing the step of recording the remaining reproduction output of the compact disk on the B side of the cassette tape, when there is a gap free period on the B side, The B-side copy recording mode is terminated and the operation of stopping the operation of the compact disc and the tape is stopped. Thus, the music stored on the compact disc The cassette tape is accurately positioned on both sides of the cassette tape to complete the editing copy process.

As described above, according to the present invention, when an audio system including a compact disc reproducing apparatus and a cassette tape recording / reproducing apparatus is used to edit and copy songs recorded on a compact disc provided with high-quality sound quality to a cassette tape, Is recorded on the A side and the B side of the tape in the audio cassette by appropriately dividing the audio signal reproduced and output on the first side of the cassette tape and the end point of the last song recorded on the first side of the cassette tape, Since the start point of the first song is automatically matched and edited, the total running time of the first and second sides of the cassette tape is different when playing the cassette tape. A unique effect of being able to appear.

Claims (3)

A microcomputer 30 having a driver 31 for controlling the compact disk drive motor 32, a servo unit 44 for a cassette tape, a deck unit 45 and a key input unit 43 for user selection by the user, A focusing and tracking controller (37) for processing the digital data read by the pickup device to provide a control signal to the actuator (38) for controlling the pickup device, an optical pick-up device (35) And a digital-to-analog converter (40) for converting the digital signal into an analog signal and providing it to the tape recording recording unit (46), and a compact disc player and a cassette tape player In the installed audio system, according to the disk-tape automatic editing copy function setting by the key input unit, the playing time information of the recorded music recorded on the CD is read This determines the type of the cassette tape on the basis of the step and the determination of the tape editing mode, sets the CD music to be inserted into each of the A and B sides of the tape, calculates the total playing time of these A and B sides, Calculating a gap interval between the curved surface on the A side and the B side so that the recording intervals on both sides are the same based on the total playing time difference between the tape A and the B side obtained in the step; And editing and copying the songs recorded on the compact disc in order on the A and B sides of the tape. The automatic compact copying method according to claim 1, characterized in that the blank period between pieces of music to be recorded on the tape is set to a period obtained by dividing the performance time difference on both sides by the number of pieces of music on the shorter playing time Way. The method as claimed in claim 1, wherein, when the song output from the compact disc is recorded on the A side and then moved to the B side, the mode is entered in the pause mode with a space corresponding to the inter- And the punch is released.