JP2537776B2 - Operation mode control device for compact disk player - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation mode control device for a compact disc player.

Conventional technology In recent years, with the development of digital technology, digitalization has progressed in the audio equipment field as well, and compact disc players (hereinafter referred to as CD
It is called a player. ) Is spreading rapidly.

Hereinafter, a conventional CD player operation mode control device will be described.

The CD player has several operating modes such as playing and fast-forwarding, as well as music selection, which are controlled. Among these operation modes, the CD player has a disc with codes such as song number information, so it is easy to randomly select and play desired songs, and the song selection function is a major feature of the CD player. There is.

As this random music selection operation, the memory button and the music number designation input button are operated to sequentially record the performance music numbers in the memory. There is also a recall function associated with the random song selection function. This is so that by pressing the recall button, the contents stored in the memory for random music selection are sequentially read and displayed, and the music selection number, order, etc. can be confirmed.

By providing each of these functions to the CD player, it became very convenient.

The conventional operation mode control device for each function has an operation button corresponding to each operation mode.

Problems to be Solved by the Invention However, in recent years, with the advent of portable CD players and the like, there has been an increasing demand for miniaturization, and conventional CD player operation mode control devices require operation buttons corresponding to each operation mode. Therefore, the number of operation buttons is increased and the area of the operation panel is increased, which hinders downsizing.

Further, there has been a problem that the size of the buttons has to be reduced instead of increasing the number of operation buttons, resulting in poor operability.

In view of the above-mentioned problems, the present invention provides an operation mode control device for a CD player in which the number of operation buttons can be reduced and the size can be reduced by also using the operation buttons.

Means for Solving the Problems In order to solve the above problems, the operation mode control device for a compact disc player according to the present invention has at least an operation means having an operation lead for selecting music and an operation mode for the compact disc player as a reproduction mode. A reproduction mode storage means for storing the reproduction mode or the non-reproduction mode, and a mode confirmation means for judging the contents stored and held in the reproduction mode storage means,
A memory for storing the selected song number, a song selection memory unit for storing the song number in the memory, a song selection recall unit for sequentially reading the song numbers stored in the memory, the song selection memory unit and the song selection Depending on the display means for displaying the output of the recall means and the operation mode judged by the mode confirming means at the time of operating the music selection operation lead, the music selection memory means is operated in the non-reproduction mode, and the above in the reproduction mode. A mode selection means for operating the music selection recall means is provided.

By the above means, when the operation button for music selection is pressed, when the state of the CD player is in the non-reproduction mode, the music selection memory means is operated to store the music number in the memory,
Also, when the state of the CD player is in the reproduction mode, the music selection recall means is operated to read out the music number stored in the memory.

Practical Example FIG. 1 is a functional block diagram showing the configuration of an operation mode control device for a CD player according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 is one of the operation button groups, and also has two function operations: a music selection memory operation for sequentially storing music numbers in the memory 2 and a music selection recall operation for reading the music numbers stored in the memory 2. The operation means 3, the reproduction mode storage means 5 stores and holds whether the state of the CD player operated by the reproduction operation means 4 is the reproduction mode or the non-reproduction mode, and 5 the storage and storage of the reproduction mode storage means 3. The mode confirming means 6 for judging the contents to be played is operated by the output of the mode confirming means 5 to operate the music selection memory means described later when the output is in the non-reproduction mode, and the music selection recall means described later in the reproduction mode. It is a mode selection means for operating. Reference numeral 7 is a music selection memory means for sequentially storing the music numbers of the music pieces that the user wants to reproduce in the memory 2, and 8 is music selection recall means for sequentially reading out the music numbers stored in the memory 2.
Reference numeral 9 is a display means for displaying the outputs of the music selection memory means 7 and the music selection recall means 8.

FIG. 2 shows an external perspective view of a CD player according to an embodiment of the present invention.

In FIG. 2, 11 is the body of the CD player, and 12 is the body 11.
It is a lid that can be opened and closed freely.

13 is a power switch, 14 is a play / pause button, 15 is a stop button, 16 is an operation button which also has a function operation of music selection memory operation and music selection recall operation, 9 is for displaying a performance music number, performance time, etc. It is a display means. Further, reference numeral 18 is a skip button for operating a music selection memory and an operation for designating a desired music number and a skip reproduction function.

FIG. 3 is a block diagram showing the structure of a CD player according to an embodiment of the present invention.

Reference numeral 21 is a disk, 22 is a drive motor for driving a turntable on which the disk 21 is placed, and rotation control is performed by a turntable drive control circuit 23.

Reference numeral 24 is a traverse having an optical pickup 31 for optically extracting the data recorded on the disk 21.
It moves linearly in the radial direction of 21 under the control of the traverse control circuit 25.

Reference numeral 26 is a tracking control circuit for the optical pickup 31, and 27 is a focus control circuit.

Reference numeral 28 denotes an operation unit for inputting to the microcomputer 30 a command to press operation buttons such as an operation button 16 and a skip button 18, which also function as a music selection memory operation and a music selection recall operation.

The microcomputer 30 controls the turntable drive control circuit 23, the traverse control circuit 25, the tracking control circuit 26, and the focus control circuit 27 according to each operation mode input from the operation unit 28.
Command is sent to each control circuit based on this command, and the digital signal for audio extracted from the pickup 31 is converted to the digital-analog converter 32.
The signal is converted into an analog signal by the (D / A converter), amplified by the amplifier 33, and reproduced by the speaker 34.

Data such as music number information and time information recorded on the disk 21 is picked up by the pickup 24 and input to the microcomputer 30.

Further, numeral 9 is a display means for displaying a performance music number, a performance time, a music number stored in memory and the like by an output from the microcomputer 30.

FIG. 4 is a main part of a flowchart showing the operation of the microcomputer of the operation mode control device for the CD player in the embodiment of the present invention.

 FIG. 5 is a diagram showing a display pattern of the display means 9.

 The operation will be described below with reference to the drawings.

First, the case where the music selection memory operation of the CD player is performed will be described.

First, when the power switch 13 is turned on, the display pattern of the display means 9 is displayed as shown in FIG. 5a, and then information such as the number of recorded songs is read from the disc and displayed.

Now, suppose that the desired song numbers are randomly stored in sequence, such as song number 1, song number 3 ... First, when the skip button 18 is pressed, the music number 1 is displayed on the display means 9. Next, when the operation button 16 is pressed, the microcomputer 30 determines in step 1 shown in FIG. 4 that the operation button 16 has been pressed and proceeds to step 2. In step 2, it is determined that the CD player is in the non-reproduction mode, and the process proceeds to step 3 where the memory 2 stores that the first music piece to be played is music number 1. Next step 4
Then, the display means 9 performs the display shown in FIG. 5b. As a result, it can be confirmed that the song number 1 is stored in the first performance song.

Next, in order to store the second desired music number 3 in the memory 2, the skip button 18 is pressed to display the music number 3 on the display means 9. Then, when the operation button 16 is pressed, the microcomputer 30 sequentially processes step 1, step 2, step 3, step 4 shown in FIG. 4 similarly to the above description, and the display means 9 performs the display shown in FIG. 5c. . The desired songs can be sequentially stored in the memory 2 in the same manner as described below.

Next, the case of performing the music selection recall operation of the CD player will be described.

Now, when the operation button 16 is pressed while the CD player is in the reproduction mode, the microcomputer 30 determines in step 1 shown in FIG. 4 that the operation button 16 has been pressed and proceeds to step 2. In step 2, it is determined that the CD player is currently in the reproduction mode, and the process proceeds to step 5. As a result, the song numbers stored in the memory 2 are sequentially read out, and in step 4, they are sequentially displayed by the display means 9 as shown in FIGS.

In FIG. 5, the display 51 indicates the song number, the display 52 indicates the playing order, the flashing display 53 indicates the currently playing song number,
The display 54 shows the music number stored in the memory 2.

As described above, according to this embodiment, when the operation button 16 is pressed, the CD
The mode confirmation means 5 for confirming whether the player is in the reproduction mode or not is confirmed, and the mode selection means 6 responds to the output by the mode selection means 6 if the CD player is in the non-reproduction mode. Since it is configured to select the music selection recall function if there is one, the music selection memory operation and the music selection recall operation can be performed with one operation button, the number of operation buttons can be reduced, and the area of the operation panel can be reduced, thereby enabling a CD player. It is possible to downsize. Further, by reducing the number of operation buttons, the number of parts can be reduced and the cost can be reduced.

As described above, according to the present invention, the operation mode of the CD player when the operation button is operated is determined by the mode confirmation means, and the operation mode is selected and the song number is stored in the memory. , Or the song number stored in the memory can be read out and displayed.
Since one operation button can be used for two function operations, a compact and easy-to-use CD player can be provided.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing the configuration of an operation mode control device for a CD player in one embodiment of the present invention, FIG. 2 is an external perspective view of a CD player in one embodiment of the present invention, and FIG.
FIG. 4 is a block diagram showing a configuration of a CD player according to an embodiment of the present invention, and FIG. 4 is a flow chart diagram showing an essential part of an operation of a microcomputer of an operation mode control device for a CD player according to an embodiment of the present invention. 5A to 5E are diagrams showing the display patterns of the display means in the CD player of one embodiment of the present invention. 1 ... operation means, 2 ... memory, 5 ... mode confirmation means, 6 ... mode selection means, 7 ... music selection memory means,
8: Music selection recall means, 9: display means.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Kimio Hideo, Kadoma City, 1006 Kadoma, Matsushita Electric Industrial Co., Ltd. (56) References JP-A-60-18876 (JP, A) Actual development Sho-59-194195 ( JP, U)

Claims (1)

(57) [Claims] 1. An operation means having at least an operation button for selecting a music piece, a reproduction mode storage means for storing a reproduction mode or a non-reproduction mode of an operation mode of a compact disc player, and a storage and storage of the reproduction mode storage means. Mode confirmation means for judging the contents, a memory for storing the selected song number, a song selection memory means for storing the song number in the memory, and a song selection recall for sequentially reading out the song numbers stored in the memory Means, display means for displaying the outputs of the music selection memory means and the music selection recall means, and the operation mode determined by the mode confirmation means when the operation button for music selection is operated. And mode selection means for operating the music selection recall means in the reproduction mode. Operation mode controller of emissions compact disc player.