KR970005028B1 - Disk scanning method of disk player - Google Patents

Abstract

In a compact disk player having a disk changer to play a plurality of disks, the disk scan method reproduces an important part of a present-selected disk during a predetermined time when manipulating a disk scan key, normally reproduces a present disk if the disk scan key is turned off, and selects a next disk if the predetermined time elapses.

Description

How to Scan a Disc in a Disc Player

1 is a block diagram of a displayer using the disk scan method according to the present invention.

2 is a control flowchart for a disc scanning method according to the present invention.

* Explanation of symbols for main parts of the drawings

2: compact disc 3: microcomputer

16: magazine

The present invention relates to a disc scanning method of a disc player in which a disc player using a plurality of discs can quickly find a desired disc.

Compact disc players, currently in production and on the market, include a disc changer with the ability to use multiple discs, which can be replaced if you want to play the disc you want. Until now, there was an Intro-Scan function to find songs on only one disc. In disc changers that use multiple discs, there is no function to find discs. It was difficult to determine if it was.

Therefore, the present invention adds a disc scanning function to a compact disc player to play a portion of an important song of each disc (which may be the middle part of the first song) for a short time (for example, about 10 seconds) and then check the next disc. An object of the present invention is to provide a method of scanning a disc of a disc player so that a user can easily and quickly find a desired disc.

The present invention for achieving this object is a disc scanning method of a compact disc player having a disc changer capable of replacing a plurality of discs mounted in a magazine, which is a method of scanning a disc currently selected for a predetermined time during operation of the disc scan key. Playing the current disc normally when the disc scan key is turned off during the playback of the critical part; Selecting the next disk upon completion of the time period; selecting the next disk upon completion of the time.

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

FIG. 1 is a block diagram of a compact disc player employing a disc scanning method according to the present invention. First, when a user wants to play a compact disc 2 by operating a key matrix 1, the microcomputer receives a key signal and receives a microcomputer. (3) generates a signal for the motor driver 4 to drive the turntable drive motor 5. Then, the motor 5 is rotated, and accordingly, the turntable 6 is rotated and the compact disc 2 installed on the turntable 6 is rotated. When the compact disc 2 rotates, the pickup 7 reads the digital signal recorded on the compact disc 2 and applies it to the amplifier 8. The signal thus read is applied to the focus and tracking controller 9, which controls the actuator 10 to control the focusing and tracking of the pickup 7.

The digital compact disc signal output from the focusing and tracking controller 9 is provided to the digital signal processor 11, processed, and then converted into an analog signal by the digital / analog converter 12 to output the speaker via the output amplifier 13. (14, 15) can be output to the outside, the function of the compact disc player described so far is common in a compact disc player that can play a single disc.

Therefore, in the present invention, an essential matter relates to a function for quickly finding a disc mounted in the magazine 16, which will be described in detail as a flowchart of FIG.

2 is a control flowchart for the present invention. When a user manipulates a disk scan key to operate a key matrix 1 to find out a piece of music on a plurality of disks, the program executes step S101 from step S101. If the disk scan key is not pressed, the microcomputer 3 advances the program from step S101 to step S103 to perform other functions except for the scan function.

When the disc scan key is input in step S102, the microcomputer 3 plays the part (e.g., the middle part of the first song or the main sound of the first song) which is considered to be important for some time (for example, about 10 seconds) from the current disc ( Step S104).

When the disc scan off operation is applied during the reproduction of such an important part, the microcomputer 3 advances the program from step S105 to step S106 so as to enter the normal playback state from the current disc, but without the disc scan off operation. When the set time has passed (step S107), this is selected by operating the magazine 16 to play the next disc. The program is returned from step S108 to step S102 so that the selected disk repeats the operation as described above.

The reason why the important part of the disc is played for about 10 seconds is that one disc usually contains a song sung by one person or the same series of music. It is to be able to judge.

As described above, the present invention is characterized in that in a compact disc player having a disc changer capable of replacing a plurality of discs, the contents of the disc can be roughly and quickly determined by checking an important part of the replaced disc for a predetermined time.

Claims (1)

A disc scanning method of a compact disc player having a disc changer capable of replacing a plurality of discs mounted in a magazine; Playing an important part of the currently selected disk for a predetermined time when the disk scan key is operated; The important part of the disc includes the steps of: normal playback of the current disc when the disc scan key is turned off during playback; And selecting the next disk upon completion of the time.