KR0140199B1 - Method of one touch memory in a car's compact disc player - Google Patents

Abstract

In the car CDP, the memory key is used to memorize or directly play the song being played by one-touch operation. When the memory key is pressed and is pressed for 2 seconds or more, the number of the song currently being played in the buffer corresponding to the memory key is used. If the memory is not pressed for more than 2 seconds, the song stored in the buffer corresponding to the pressed memory key is played. If the memory key is not pressed, the songs stored in the buffer corresponding to the memory key are played sequentially. If there is a song memorized in the song, it will be deleted and the new song will be memorized.

Therefore, the car CDP can be operated by one-touch operation by pressing the memory key, which is suitable for the car CDP which requires fast and accurate operation.

Description

Car CDP One Touch Memory Method

1 is a block diagram of the present invention

2 is a flowchart of the present invention.

* Explanation of symbols for main parts of the drawings

5: display 10: microcomputer

15: System control unit MK1, MK2, MK3: Memory key

MB1, MB2, MB3: Buffer

According to the present invention, a car CDP (COMPACT DISC PLAYER) installed in an automobile, which uses a memory key to memorize a specific song address of a disc being played with one touch or to select and play a specific song directly A one-touch memory method of the CDP.

Conventional home CDPs provide convenience for selection by providing a numeric key and a memory key as described in Japanese Laid-Open Publication No. 60-13377, and then selecting and storing a desired song with a numeric key in advance. .

However, the above-described prior art is limited to home CDPs, and when a particular song is memorized or directly selected and played, the display can be operated while watching the display. There's no time to memorize the display and select and play the desired song.

In other words, when driving a car, the driver must watch the front and rear of the car for safe driving. Therefore, if the driver loses his gaze to another place while driving, he may face an irreversible accident.

Therefore, if the existing memory system is used as it is, the display can be memorized only when the car is not in operation. If the display is memorized while the car is in operation, the risk of an accident should be taken.

In order to solve this problem, the present invention is to provide a method of using a memory key to memorize the address of a song being played or to select and play a specific song directly with only one touch operation.

This is a particularly suitable invention for the car CDP. When the memory key is pressed for a certain time (approximately 2 seconds), the address of the currently playing song is stored in the buffer of the corresponding memory key, but there is an address previously stored and the address is deleted.

If you press a memory key but release it a certain time ago, the song is played by the address stored in the memory key buffer.

As described above in detail with reference to the accompanying drawings of the present invention.

1 is a block diagram of the present invention,

In the car CDP which controls the system control unit 15 of the car CDP from the microcomputer 10 that recognizes the function key input of the key input unit 20 and displays the operation state on the display 5,

A buffer MB1 (MB2) (MB3) which constitutes a plurality of memory keys MK1 (MK2) (MK3) and stores the music address of the CDP according to the key presses of the memory keys MK1, MK2, and MK3. By constructing

As shown in the pro chart of FIG. 2, when the memory keys MK1, MK2, and MK3 are pressed for 2 seconds or more, the microcomputer 10 receives the address of the currently playing song from the memory keys MK1 and MK2. When the memory keys MK1, MK2, and MK3 are pressed for 2 seconds or less, the memory keys MK1 and MK2 are stored in the buffers MB1, MB2, and MB3 corresponding to MK3. The song is played to the address stored in the buffers MB1, MB2, and MB3 corresponding to MK3, and the memory keys MK1, MK2, and MK3 are pressed while the powder is inserted into the CDP. If not, the process of sequentially playing the songs stored in the buffers MB1, MB2, and MB3 is performed.

At this time, when the address of a new song is stored in the buffers MB1, MB2 and MB3, if there is an address of a previously memorized song, the address of the previously memorized song is erased and the address of the new song is memorized.

In the present invention as described above, the microcomputer 10 receives the function key input of the key input unit 20 to control the system controller 15 to operate the car CDP and simultaneously display the operation state on the display 5 while the memory key. The (MK1) (MK2) and (MK3) inputs are checked to perform the flowchart of FIG.

First, if one of the memory keys (MK1) (MK2) (MK3) is pressed, check whether the memory key is applied, and if it is confirmed that it is one of the memory keys (MK1) (MK2) (MK3), press the button for 2 seconds or more. If pressed for more than a second it checks to see if the set is playing.

That is, if one of the memory keys (MK1) (MK2) (MK3) is pressed for 2 seconds or more, it is returned if the set is not playing, and if any of the memory keys (MK1) (MK2) (MK3) is used, Determine if is pressed.

Therefore, when the memory key (MK1) is pressed for 2 seconds or more and the set is being played, the memory address (MK2) is returned if the address of the currently playing song is stored in the buffer MB1 corresponding to the memory key (MK1). If it is pressed for more than 2 seconds and the set is playing, the address of the currently playing song is stored in the buffer MB2 corresponding to the memory key MK2, and returned. Similarly, the memory key MK3 is pressed for more than 2 seconds and the set is When playing, the address of the song currently being played is stored in the buffer MB3 corresponding to the memory key MK3 and returned.

That is, when any one of the memory keys MK1, MK2 and MK3 is pressed for 2 seconds or more and the set state is being played, the buffers MB1 and MB2 corresponding to the pressed memory keys MK1, MK2 and MK3 By storing the address of the song currently being played in MB3, the address of the song being played by one-touch operation is simply stored in the desired memory key.

At this time, when the address of another song is already stored in the buffers MB1, MB2, and MB3, the existing memory contents are erased and the address of the new song is stored.

If one of the memory keys (MK1) (MK2) (MK3) is pressed but has not been pressed for more than 2 seconds, the buffers (MB1) (MB2) (MB3) corresponding to the memory keys (MK1) (MK2) (MK3) The previously memorized song is played first.

That is, when the memory key MK1 has not been pressed for more than 2 seconds, the song stored in the buffer MB1 corresponding to the memory key MK1 is played in preference to the currently playing song, and the memory key MK2 is played. If it is not pressed for more than 2 seconds, the song stored in the buffer MB2 corresponding to the memory key (MK2) will be played in preference to the currently playing song. If the memory key (MK3) is not pressed for more than 2 seconds, In the following, the music stored in the buffer MB3 corresponding to the memory key MK3 is played in preference to the song currently being played.

Therefore, when one of the memory keys (MK1) (MK2) (MK3) is pressed but has not been pressed for more than 2 seconds, the buffers corresponding to the pressed memory keys (MK1) (MK2) (MK3) (MB1) (MB2) (MB3) Since the song stored in the memory is played, the song that was memorized by the memory keys MK1, MK2, and MK3 can be easily played with a simple one-touch operation.

In addition, when the power of the car CDP is turned on but the memory keys MK1, MK2, and MK3 are not pressed, the buffers corresponding to the memory keys MK1, MK2, and MK3, MB1, MB2, and MB3 ) Will play the tracks memorized in sequence.

In other words, when the memory keys MK1, MK2, and MK3 are not pressed, the songs are stored in the buffer MB1, and the songs stored in the buffer MB1 are played. The music stored in the MB2 is played, and if the music is not stored in the buffers MB1 and MB2, the music stored in the buffer MB3 is played.

In the present invention, when the memory keys MK1, MK2, and MK3 are further expanded and the buffers MB1, MB2, and MB3 are increased, a larger number of songs can be selected for memory selection. Changes can be easily made by the teachings of the present invention and do not depart from the scope of the present invention.

As described above, the present invention provides a method of pressing the memory key on the car CDP for more than 2 seconds so that the address of the currently played song is stored in memory, and the previously stored song is played if the memory key is not pressed for more than 2 seconds. Even if you can't sell a car, you can operate the car CDP simply by one touch operation.

Claims (1)

Check if the memory key installed in the car CDP is pressed. If the memory key of the car CDP is pressed for a certain time, the process of storing the address of the currently playing song in the buffer corresponding to the memory key is performed. If no memory key is pressed during the car CDP operation, the music stored in the buffer corresponding to each memory key is sequentially played. Car CDP one-touch memory method.