KR200210074Y1 - Disk location indicator in compact disk systems - Google Patents

Abstract

The present invention relates to a disc position display device in a compact disc system. In the general method, it is difficult to determine whether a disc is present when playing a disc, and since there is no information on the screen, it is possible to know whether the desired compact disc is correctly displayed. In order to solve this problem, the present invention uses a sensor and a slot to provide the location information appropriately displayed on the screen, so that it is possible to determine the state in which the disc is being played and the desired compact disc. To see if it runs correctly.

Description

Disk location indicator in compact disk systems

1 is a block diagram of the present invention,

2 is a flow chart for the operation of the present invention.

* Explanation of symbols for main parts of the drawings

10 disc selection means 11 user interface

12: information judge 20: drive control means

21: motor control circuit 22: motor drive

30: disc recognition means 31: slot sensor

32: waveform shaping circuit 33: position determination circuit

40: display means 41: screen display device

42: screen 50: main control circuit

The present invention relates to a disc position display device for a compact disc system. In particular, a compact disc position in a magazine for maintaining and supplying data input in a device capable of storing and reproducing a plurality of compact discs can be accurately displayed on a screen. Relates to a device.

In general, in a compact disc system in which a large number of compact discs are stored in a magazine, a disc of a desired position is selected and played. A disc selection error occurs when a magazine disc is partially loaded. If a disc is not loaded, there is a problem that cannot be accurately determined.

The present invention is to solve this problem, and by using the sensor and the slot is supplied with the location information to properly display the magazine location on the screen without disc, so that it can be recognized and selected in advance when playing the disc It is characterized by.

In other words, the present invention and the disk recognition means for recognizing the loading and position of the disk stored in the magazine; Display means for displaying a disk position on a screen; Disk selecting means for selecting a position of the disk; Drive control means for driving a motor to find a selection disk position; And a control signal for causing the display means to display in advance whether the disk recognition means is loaded or not, and providing the selection music data to the drive control means by the disk selection means.

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

1 is a circuit diagram of the present invention, comprising: display means (10) for displaying a disk position on a screen; Drive control means (20) for driving the motor to find the selection disk position; Disk recognition means (30) for recognizing whether the disk is stored in the magazine and whether the position; The display means 40 for displaying the disk position on the screen, and whether or not the display means 40 is loaded in advance according to the loading or not data and position data of the disk recognition means 30, and the disk selection means 10 By the main control signal 50 for providing the music selection data to the drive control means 20.

The disk selection means (10) comprises a user interface (11) for inputting selection information of a desired disk through a key matrix; An information determiner 12 performs an intermediate role by recognizing and determining a key of information input through the user interface 11. A motor control circuit 21 for receiving a control signal output from the driving control circuit 50; The motor control circuit 21 includes a motor drive 22 for driving a motor to play a disk corresponding to moving disk selection information to a disk position by giving a constant current value to a control signal applied from the motor control circuit 21. The disk recognizing means (30) comprises a slot sensor unit (31) for detecting the correct position and the presence of the disk when moving to the position of the compact disk through the motor drive (22); A waveform shaping circuit (32) for accurately detecting a pulse generated by the slot sensor unit (31) according to the number of motor revolutions into a square waveform and detecting a position and disc presence; Position determination circuit 33 for accurate position display in the waveform shaping circuit (32). The slot sensor unit 31 is preferably configured by combining a slot sensor and a detection sensor that recognizes whether the disk is output. The display means (40) comprises a screen display (41) capable of displaying on the screen the disk position information through the position determination circuit (33) and the main control circuit (50); It is composed of a screen 42 that the user can directly know in which position the disk position information through the screen display device 41.

The main control circuit 50 may exemplify a microprocessor.

The sensor unit 31 may include a slot sensor for recognizing a position and a recognition sensor for recognizing a disk.

Referring to the operation of the present invention configured as described in detail as follows.

First, when the music selection information of the desired disk is input to the user interface 11 through the key matrix, the information determiner 12 recognizes and determines the music selection information key of the input disk to play an intermediate role. In this case, the key of the information input from the information determiner 12 enters the main control circuit 50 and is interpreted as a code corresponding to each key. Then, when the control signal output to the motor control circuit 21 is applied, the motor When the control circuit 21 applies the applied control signal, the motor control circuit 21 drives the motor drive 22 to give the applied control signal a constant current value to move the disk to the disk position. Will be played. At this time, the motor drive 22 moves to the position where the desired compact disc is located, and uses the slot sensor 31 used for more accurate detection of the position to precisely generate the pulse generated according to the motor rotational speed into a square wave to detect the position. It is input to the position determination circuit 33 for accurate position display via the waveform shaping circuit 32. The position determination circuit 33 is fed back until the correct disc position is found, and if the correct disc position is found, the screen can display the position information on the screen via the main control circuit 50 for interpreting the code corresponding to each key. The display device 41 and the disk position information are output to the screen 42 where the user can know directly.

In this case, the slot sensor unit 31 of the present invention is made of a sensor that recognizes the presence or absence of the disk and the slot sensor 31, the recognition sensor can be implemented as a photo coupler, so the illustration thereof is omitted.

Therefore, in the waveform shaping circuit 32, data (a) for recognizing the position of the disk is applied to the position determining circuit 33, and data (b) for the presence or absence of the disk is directly transferred to the main control circuit (50). to provide. Accordingly, the presence or absence of the data (b) of the disc is recognized by the main control circuit 50 and displayed by the display means 40, so that the user can select the magazine position where the disc is located by recognizing the position without the disc.

The operation of the present invention will be described with reference to the second diagram.

(S1) a user inputting key information through a front panel or a key input / output device; (S2) a step of recognizing and determining the information key input in the (S1) step; A step (S3) of applying the control signal output to the motor control circuit 21 by interpreting a code corresponding to each key in the main control arc path 50 using the information key recognized and determined in the step (S2); ; A step (S4) of driving the motor drive 22 to a position where a desired CD is located by giving a constant current value to the control signal applied in the step (S3); (S5) using the sensor data to detect the correct position while moving to the position where the CD is located in the (S4) step; A step (S6) of detecting and determining a position by accurately forming a pulse generated according to the motor rotation speed in a sensor capable of detecting a position in the step (S5); In step (S6), at the step (S7) of applying the position detection data by the sensor and the position detection determination circuit to the play main control circuit 50, the disk position information through the main circuit 50 is displayed on the screen. (S8) step of applying the position information to the screen display device 41; In step (S8), the step (S9) of displaying the position of the disc currently displayed on the monitor on the screen 42 by various methods such as numbers and pictures by applying the position information to the screen display device 41. It works in sequence.

The present invention also checks the presence or absence of the disc in step S7 and displays the fact that the disc itself is not present in steps S8 and S9 so that the user can recognize it. According to the flowchart, when the magazine is loaded and the magazine is determined for each position and whether the magazine is stored and stored in the main control circuit 50, the display disc 40 can recognize the missing disc position in advance. have.

Therefore, in the automatic exchange system, the position of the disc currently being played is executed on the monitor using the screen display circuit so that it is possible to know which of the 50 sheets is playing and which disc is missing.

As described in detail above, the present invention is capable of determining the state in which the disc is played when the disc is played by accurately receiving the positional information by using the sensor and the slot and displaying the information on the screen appropriately. There is.

Claims (2)

A disc position display apparatus in a compact disc system, comprising: display means (10) for displaying a disc position on a screen; Drive control means (20) for driving the motor to find the selection disk position; Disk recognition means (30) for recognizing whether the disk is stored in the magazine and whether the position; Display means (40) for displaying a disk position on a screen; According to the loading status data and position data of the disk recognition means 30 to display in advance whether the loading means on the display means 40, the disk selection means 10 to provide the selection music data to the drive control means 20 Disc position indicating device in a compact disc, characterized in that the main control signal (50). According to claim 2, wherein the disk recognition means 30 comprises a slot sensor unit 31 for detecting the correct position and disk presence when moving to the position of the compact disk through the motor drive (22); And a waveform shaping circuit (32) which detects the position and the presence or absence of a disk by accurately forming a pulse generated by the slot sensor unit (31) according to the number of motor revolutions.