JPH07226066A - Magneto-optical reproducing device - Google Patents

Abstract

PURPOSE:To prevent a misunderstanding caused by a confusing display by displaying a music name when a reproducing circuit reads out the music name of reproduced music and prohibiting the display of the music name when the circuit reads out no music name. CONSTITUTION:When an MD is inserted into a port 1, a control circuit 11 operates a disk reproducing circuit 2, and the circuit 2 makes the MD a reproducing state automatically, and searches the data of top of the music, and reads out the performance time and the music name of the music to send these data to the circuit 11. The circuit 11 writes the data of the performance time in a RAM 13, and writes the music name data in the RAM 14. Either one of the data of the performance time and the music name written in the RAM 14 is displayed on a display device 3 by the control of the circuit 11, and the music is reproduced. When no music name is written in the MD, the RAM 14 becomes a null string, an LED is lighted together with the time when a display switch key 9 specifies no music name side. Then, the performance time is read from the RAM 13, and the performance time is displayed on the display device 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magneto-optical reproducing device used for sound or the like.

[0002]

2. Description of the Related Art It is well known that a magneto-optical recording medium in which data can be written by a user is used for recording / reproducing music under the name of MD (mini disk). If a recordable MD recorder player is used, not only music data but also music title data can be written in the magneto-optical recording medium. Then, when the music is reproduced, the music title can be displayed. Writing other than the main data (song) to the MD (song name) is disclosed in, for example, Japanese Patent Laid-Open No. 4-17160.

By the way, although the music title data can be written, it is not always written. For example, in recorded MDs that are commercially available in Japan, almost no song title is written. Further, when the user dubbs a song such as a CD to the MD, the song name can be input and written in the MD, but the song name is not always written at this time. Conventionally, when the music title data is not written in the MD, "No title" or "NO TITLE" is displayed to indicate that the music title data is not written in the MD.

[0004]

As described above, when the data of the song title is not written in the MD, the words "No song title" or "NO TITLE" indicating that there is no song title is displayed. , There is a possibility that it gives a misunderstanding that the character is a song title or that the song is a so-called untitled song that originally has no song name.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is characterized in that song data and song name data are read from a magneto-optical recording medium in which song data and song title data are recorded. In a magneto-optical reproducing device having a disc reproducing circuit for reproducing a song and a control circuit for displaying a song name on a display device based on data of the song name from the disc reproducing circuit, the controller reproduces the disc reproducing circuit. When the song name data of the song is read out, the song name is displayed, and when the song name data of the song played by the disc playback circuit is not read out, the display of the word character indicating that there is no song name is prohibited, or It is to display characters that are not related to the song title, and more preferably the playing time.

[0006]

[Function] As a result, a display that may be misleading is not displayed. And preferably other information about the song is effectively displayed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an MD player as a magneto-optical reproducing device will be described with reference to the drawings. The magneto-optical reproducing apparatus according to the present embodiment is an in-vehicle MD player, which is a reproduction-only machine equipped with a small display section. FIG. 1 is a block diagram showing a first embodiment, and FIG. 2 is a front view of an MD player. (1) is an insertion slot for the MD, and a mechanism for driving the MD is stored inside. Reference numeral (2) is a disc reproducing circuit, which reads out music pieces, music titles, and performance time data recorded on the MD, sends the music titles and performance time data to a controller (11) described later, and reproduces the music pieces.
Reference numeral (3) is a display device, which has a display section (4) composed of an LCD for displaying the playing time of the music to be reproduced, the music title and the like. (5) is an indicator part, which indicates whether the character displayed on the display device is a song title or a playing time, and a first LED (6) indicating the song title and a second LED ( 7). Reference numeral (8) denotes an operation section, which is a display switching key (9) for switching at least a music title or a playing time on the display device (3) and a reproduction related to a reproduction operation of a next music, a previous music, a shuffle, and the like. Operation key (1
0) etc. Reference numeral (11) is a control circuit for controlling the display device (3), the indicator section (5) and the disc reproducing circuit (2) by the disc reproducing circuit (2), the display switching key (9) and the display switching key (9). . For example, when it is detected that the display switching key has been operated at the start of reproduction, the disc reproducing circuit (2) is operated according to a program in the ROM (to be described later) to read out data relating to the music and store the data in the second RAM (14) to be described later. , The display device (3) and the indicator section (5) are displayed.
Reference numeral (12) is a ROM, which stores a program for operating the control circuit (11). (13) is a first RAM, which stores the performance time obtained from the disk reproducing circuit. (14) is a second RAM, which stores the title of the music obtained from the disk reproducing circuit.

FIG. 3 is a configuration diagram sequentially showing an example of data read from the MD. (15) is 1
The beginning of the data regarding one song is shown, and (16) is the performance time data. Commercially available MDs in which songs have been recorded in advance have performance time data written in, and users can record songs such as CDs using an MD recorder that allows recording.
When recording on D, the playing time is automatically calculated according to the beginning and end of the song and written to the MD. (17) is music title data, which is a null string if there is no music title. (18) is the music data, and (19) shows the end of the data for one music.

A case of automatically playing such an MD will be described as an example. When the operator inserts the MD into the insertion slot (1), the control circuit (11) activates the disc reproducing circuit (2), and the disc reproducing circuit (2) automatically puts the MD in the reproducing state. The data of the beginning of the music on the innermost circumference side is searched, the data of the performance time of the music and the data of the music title are read, and these data are sent to the control circuit (11). The control circuit (11) sends the performance time data to the first R
To the AM (13), the song name data is stored in the second RAM (14).
Write to If the song title data is not written in the MD, the second RAM (14) becomes a null string. One of the performance time data and the music title data written in these RAMs is displayed on the display device (3) under the control of the control circuit (11), and the music is reproduced. When the next song or shuffle is performed by the operation of the playback operation key (10) and another song is designated, the disc playback circuit (2) searches for the designated song and repeats the above-described operation to perform. R of time data and song name data
After being written in AM (13) (14), a new playing time or song title is displayed. In this way, the title or playing time of the old song is displayed between the time when the old song is played and the time when the new song is played.

The operation of the control circuit (11) after fetching the data of the song title from the disc reproducing circuit (2) and displaying the song title or playing time will be described with reference to the flow chart of FIG. This operation is performed by the program written in the ROM (12).

When data of a new song title is received (S1-
Y), it is checked whether or not the display switching key (9) specifies the music title side (S2). If the music title is specified (Y in S2), the first LED (6) is turned on. As a result, the indicator part displays the song title side (S
3). Next, the data of the song title is read from the second RAM (14) (S4) If it is not a null string, that is, if the song title is written in the MD (Y of S5), the display device (3).
The song title is displayed on (S6).

When the display switching key (9) does not specify the music title side in step S2 (N in S2) or the music title is not written in step S5 (N in S5), the second key is selected. The LED (7) is turned on. That is,
The position of the indicator shows the playing time (S7). Then, the playing time is read from the first RAM (13) (S
8) The performance time is displayed on the display device (3) (S9).
After displaying the song name or the playing time (S6 or S9), it waits until the data of a new song name is received again (S
1). When there is no song title, the playing time is displayed regardless of the display toggle key (9). Therefore, the display device (3) alone cannot tell whether there is a song title, but the display toggle key (9)
It can be seen that there is no song title depending on the presence or absence of the operation. If there is no song title, the playing time can be known without operating the display switching key (9).

FIG. 4 is a block diagram showing the second embodiment, and the control of the indicator portion (5) is different from that of the first embodiment. For example, the display switching key (9) is composed of a push switch having two circuits and three contacts, and each of the two circuits has a control circuit (1
1) and indicator part (5). The first LED (6) lights up when the display switching key (9) is switched to the song title side, and the second LED (7) is switched when it is switched to the playing time side.
Lights up. The operation of the control circuit (11) is shown in FIG. It differs from the first embodiment described in FIG. 4 in that the control circuit (11) does not control the indicator portion (5). If there is no song title (N in S5), the performance time is read without switching the indicator position to the playing time (S5).
8) It will be. The other operations are the same as those in the first embodiment. If there is no song title, the playing time is displayed regardless of the display switching key (9), so it is not possible to know whether there is no song title on the display device (3) alone, but if the indicator indicates the song title side, there is no song title. I understand. In this way, it can be determined that there is no song title, and the playing time can be known without operating the display switching key (9). That is, it can be more easily determined that there is no song title than in the first embodiment. The flow chart of FIG. 6 is also possible with the configuration shown in FIG. 1, but here, it has been described that the above operation can be performed with the configuration of FIG. 4 different from FIG.

Although an LED is used as an indicator of the indicator section (5) in the embodiment, a character currently displayed is displayed by using a part of the LCD of the display device (3) without using the LED. You may let me know if it is the song name or the playing time,
It may be displayed only in the direction of the switch button. Although the first RAM (13) and the second RAM (14) are separated for the sake of explanation, one RAM may be shared, and
The display may be immediately performed by the output of the disc reproducing circuit (2) without using.

Further, some MD changers capable of accommodating a plurality of MDs display a disc, and the disc name is not always written in the MD like the music title. Even when there is no disc name, the playing time can be displayed as in the case where there is no song name.

Further, in the first and second embodiments, it is explained that the display portion is so narrow that the music title and the playing time cannot be displayed at the same time. However, if the magneto-optical reproducing device has a wide display section and can display a song name, playing time, clock, etc. at a time, and there is no character to be displayed in place of the song name when the song name is not written in the MD, the song name is displayed. It is possible not to display any characters in the area for displaying.

[0017]

As described above, when the song name is not written in the MD, when the display is made by the character of the word indicating that there is no song name, that character is the song name, and the song is originally the song name. There is a possibility that the song is a song without a title, but in the present invention, since the misleading display is not made, the misunderstanding can be prevented.
Further, instead of the word indicating that there is no song title, other effective contents such as the playing time, the remaining playing time, and the date and time can be displayed to make effective use of the display device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a front view showing the device of the first embodiment.

FIG. 3 is a configuration diagram of data read from the MD according to the first embodiment.

FIG. 4 is a flowchart showing a first embodiment.

FIG. 5 is a block diagram showing a second embodiment of the present invention.

FIG. 6 is a flowchart showing a second embodiment.

[Explanation of symbols]

 2 disk reproducing circuit 3 display device 5 indicator section 9 display switching key 11 control circuit

Claims (2)

[Claims] 1. A disc reproducing circuit for reading out song data and song name data from a magneto-optical recording medium in which song data and song name data are recorded, and for reproducing a song, and a display based on song name data from the disc reproducing circuit. In a magneto-optical reproducing device having a control circuit for displaying a music title on the device, the control device displays the music title when the data of the music title of the music reproduced by the disc reproducing circuit is read, and the disc reproducing circuit A magneto-optical reproducing device characterized by prohibiting display of characters of a word indicating that there is no song title when data of a song title to be played is not read. 2. A disk reproducing circuit for reproducing music data by reading music data, music title data, and performance time data from a magneto-optical recording medium on which music data, music title data, and performance time data are recorded. And a control circuit for displaying a song name or a playing time on a display device based on the song name data from the disc reproducing circuit, wherein the control device controls the song name of the song reproduced by the disc reproducing circuit. A magneto-optical reproducing apparatus characterized in that a music title is displayed when the data is read, and a playing time is displayed when the music title data of the music reproduced by the disk reproducing circuit is not read.