KR19980049327A - How to Search CD Players Fast - Google Patents

Abstract

The present invention relates to a fast search method of a CDP such that the CD jump position increases exponentially when a search key is continuously input during a search in the CDP or VCDP.

According to the present invention, after jumping from the current position by a designated time to jump when the search key is input 1 when the search key is input, if the search key is continuously input, the jump is performed when the search key is input 1 in proportion to the number of times the search key is input. By jumping to the reduced or increased position by the exponential function of the specified time, you can get to the desired position faster.

Description

How to Search CD Players Fast

According to the present invention, when a search key is continuously input during a search progress in a CD (hereinafter referred to as CD) player (hereinafter referred to as CDP) or a video CD player (hereinafter referred to as VCDP), the CD jump position is exponentially calculated. It relates to a fast search method of the CDP to increase.

In general, when you want to listen to or watch a desired part of a song in CDP or VCDP, you can move forward or backward faster than the current position by entering a search key.

However, if the section to be searched is long, the user has to wait while pressing the search key continuously, which is very cumbersome.

It is an object of the present invention to provide a high speed CDP search method in which a CD jump position increases exponentially and moves quickly to a playback position when the same search key is continuously input during a search process. .

In order to achieve the above object, the present invention is to jump from the current position by the time designated to jump when the search key is input 1 when the search key is input, and if the search key is continuously input, the search key is proportional to the number of times the search key is input. It is characterized in that to jump to the reduced or increased position by the exponential function of the time designated to jump on the first input.

1 is a hardware diagram for implementing the present invention

2 is a flowchart for performing a fast search method of a CD player according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: CD Kit 2: MPEG Decoder

3: CPU

1 is a block diagram illustrating a hardware configuration for implementing a fast search method of a CDP according to the present invention. The CD kit 1, which is a data storage device, decodes the compressed data output from the CD kit 1, and then decodes the video. And an MPEG decoder 2 for outputting an audio signal and a CPU 3 for receiving time information from the CD kit 1 and controlling the CD kit 1 and the MPEG decoder 2 according to key input. do.

In the above configuration, the CD kit 1 outputs the compressed data to the MPEG decoder 2 according to the instruction of the CPU 1, and the MPEG decoder 2 decodes the data and outputs the video and audio signals, respectively.

The CPU 3 receives the time information from the CD kit 1 and uses it to calculate the jump position during the search. The key 3 interprets the key input from the user, and the CD kit 1 and the MPEG decoder 2 accordingly. ) To give details.

The invention carried out in such a system will be described with the flow chart of FIG.

First, when a key is input during normal play, the CPU 3 determines whether it is a search key (S1-S3).

If it is determined that the input key is not a search key, it is determined whether it is a play key, and if it is determined to be a play key, the process returns to step S1, and if not, the process returns to step S2 (S4).

If it is determined in step S3 that the search key is input, the terminal jumps to a position in which +5 seconds is subtracted or added to the current time provided from the CD kit 1 (S5).

The jump to the position where 5 seconds is added is because when the normal search key is input once in the CDP or VCDP, the jump is made to the position where 5 seconds are added or subtracted from the current position, and this time is variable.

In addition, the current state is displayed, and it is determined whether the search key is input again when the key is input (S6-S8).

If it is determined that the search key is not input, it is determined whether the play key is input, and if it is determined that the play key is not input, the process returns to step S5, and if it is determined that the play key is input, the process returns to step S1 ( S9).

If it is determined in step S8 that the search key is input, the jump to the position where + α second is subtracted or added at the present time and returns to step 6 (S10).

In the step S6, + α second is 25, 75,..., Etc., and increases exponentially with 5 in proportion to the number of times the search key is input, and jumps when the search key 1 is input. If the specified time varies, the α value also changes. For example, if the time designated to jump when the search key 1 is input is 2 seconds, α becomes 4, 8, 16, and so on.

According to the present invention, a jump position is increased exponentially every time a search key is input, thereby quickly finding a desired position.

As described above, according to the present invention, when the same search key is continuously input during the search progress, the CD jump position increases or decreases exponentially so that the user can quickly find the desired position.

Claims (1)

If it is determined that the search key is input by determining the key input, the first step of jumping to the position added or subtracted from the current time by the time designated to jump when the first search key is input, and the search key is continuously input after performing the first step. And a second step of jumping to a position of a small ^{number of} times of inputting a search key when the current time ± (the time designated to jump when the search key is input 1).