JPS6326889A - Digital audio disk player - Google Patents

Abstract

PURPOSE:To easily select a desired music even if correlation between a music number and a music name is not known by reading the information of the music name or the music number from a storing means and displaying it when the information of the music number or the music name is designated and inputted. CONSTITUTION:The recorded information of a disk 1 is read by an optical pickup 2 and the information is demodulated by a demodulating circuit and supplied to a signal processing system. The demodulated output is inputted directly to a data output circuit 4 and the data of address information, etc., are extracted. Data extracted by the circuit 4 are stored in a memory device 6 through a controller 5. In such case, the controller 5 stores the music name information from an input device 7 correspondingly to the music number. At the time of playing a disk, the controller 5 moves a pickup 2 to an address position corresponding to the music number when the music number is designated by the input device 7. When the music name is inputted, corresponding the music number from the memory device 6 is displayed in a display device, and at the same time, the pickup 2 is moved to corresponding position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital audio disc player, such as a CD (single disc) player, which records a so-called digital audio signal obtained by sampling an audio signal.

In addition to the PLAY button and the 5TOP button, the CD player is equipped with various operation buttons such as number buttons for specifying the song number. By operating the buttons, you can play any song on the disc.

However, during the performance, it is not possible to see the label of the disc loaded into the player A7, so the user must know the correspondence between the song number and the song title in advance, or look at the lyric card, etc. If the user does not know which track the desired song is included in, it will not be possible to easily select the desired song. The same thing can also be said when performing so-called program selection.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a digital audio disc player that can easily select a desired song without knowing the correspondence between the song number and the song title. shall be.

The digital audio disc player according to the present invention stores the song title information inputted from the input means in the storage means in correspondence with the song number information in the index information read from the disk, and the song number or song name information is input as specified. When it is done,
The song name or song number information corresponding to the designated song number or song name information is read from the storage means and displayed on the display means.

Back-1-μ Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

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

In the figure, recorded information on a disc 1 is read by an optical pickup 2, and the read information is demodulated by a demodulation circuit 3. This demodulated output is supplied to a signal processing system to become an audio output, and is also directly supplied to a data extraction circuit 4 to extract data such as address information from the read information. C
In the lead-in area of the D disc, there is a TOC (Tab
Index information called "LE of CONtentS" is recorded, and this TOC information is always read and extracted by the data extraction circuit 4 during a performance. The TOC information includes information such as the number of songs recorded on the disc, the song number (address information) on each side, total salary versus time, and performance start time for each song. The data extracted by the data extraction circuit 4 is supplied to the controller 5.

The controller 5 consists of, for example, a microprocessor,
Data such as TOC information supplied from the data extraction circuit 4 is stored in a storage device 6 consisting of a RAM (random access memory) or the like. When storing this TOC information, the controller 5 stores the song title information input from the input device 7 in correspondence with each song number (address information). The input device 7 has a keyboard configuration, and it is possible to enter the name of the song in hiragana or romaji, as well as to input the usual P.
In addition to the LAY button and 5TOP button, it also has various operation buttons such as number buttons for specifying song numbers. The input device 7 may be installed in the main body of the player, or may have a remote control configuration.

When playing a disc, for example, when a predetermined track number is designated by the input device 7, the controller 5 controls the slider motor 9 via the mortar control circuit 8 to move the address position heavy pickup 2 corresponding to the track number. At the same time, it also drives and controls a display device 11 via a display control circuit 10 to display the song number, song title, performance time, etc. The slider motor 9 is for driving a slider (not shown) on which the pickup 2 is mounted and is movable in the radial direction of the disk. As the display device, a fluorescent display tube, a liquid crystal display tube, etc. can be used. Furthermore, when a song title is input instead of a song number through the input device 7 at the time of performance, the controller 5 further reads the TOC information from the correspondence between the song number and the song name stored in the storage device 6 in advance. The number of the designated song is searched, the pickup 2 is moved to the address position, and the display device 11 is controlled to display the song number.

Next, an example of the procedure executed by the microprocessor in the controller 5 during a performance will be described with reference to the flowchart shown in FIG.

When starting the performance of disc 1, first the TOC information in the lead-in area is read (step S1), then the TOC information is read.
Storage device 6 determines whether the OC information has been read before.
The determination is made by searching the stored contents of (step 32). Since it is highly unlikely that the TOC information within a disc is exactly the same between individual discs, step s
By making the determination in step 2, it is possible to determine whether or not the disc to be played is the first one.

If the TOC information that has been read is not stored in the storage device 6, since this is the first disc to be played, the display device 11 displays information such as "whether to input the disc title name or song title" using characters, symbols, etc. The display control circuit 1o is controlled to display the screen (step 83). Then, when a title name or a song name is input from the input device 7 through a key operation by the user (step S4), the input information is stored in the storage device 6 in correspondence with the TOC information information page number (step S4). Step S5). Note that various methods of inputting data on the input device 7 are possible, such as, for example, inputting a song number using number buttons, and then inputting a song title of that song number using a keyboard. The input song title is stored in the storage device 6 in a corresponding relationship with the address information of the song number corresponding to the TOC information.

On the other hand, in step S2, if it is determined that the TOC information of the disc has been read before, that is, the title name or song name of the disc has already been input, the input device 7 performs an operation such as PLAY. It is determined whether or not there is key human power (step S6). If there is no human power to operate the operating keys, the process advances to "END" while waiting for the operating keys to be input, and moves to the next step such as PLAY. If there is manual operation of the key, it is then determined whether the manual operation of the key is the song number or the name of the song using the search key (step S7). If the song number or song name is not determined by the search key, "End"
The process proceeds to the next step such as PLAY. In the case of a song number or song name manually determined by the search key, the storage contents of the storage device 6 are searched, the song name or song number corresponding to the song number or song name is searched, and control is performed to display it on the display device 211 ( Step S8).

With the above operation, even if you do not know the correspondence between the track number and the song title on the disc you are playing, you can input the song number to display the song title, and vice versa. Therefore, the desired song can be easily selected.

Note that when a song number or song name is entered in combination with the search key, the corresponding song name or song number is displayed. However, for example, if a song number or song name is entered in combination with the PLAY key, It is also possible to display the title or number of the song to be played and simultaneously start playing that song.

Also, in step 2, the TOC of the disc to be played is
If it is determined that the information has already been stored, it is also possible to read the song number and song title of the disc from the storage device 6 and display them on the display device 11.

In the above embodiment, the case where the application is applied to a normal CD player was explained, but it is even more applicable to a so-called magazine-type CD player that can store a plurality of discs and play them continuously. A karaoke changer for discs and video discs would be even more meaningful since it would be possible to play a desired song simply by specifying the name of the song without having to search for the song number.

As described above, according to the disc player according to the present invention, the song title information is stored in correspondence with the song number information in the index information read from the disk, and the song number or song name information is stored. When the specified song number or song name information is input, the song name or song number information corresponding to the specified song number or song name information is read out and displayed, so you can select the desired song without knowing the correspondence between the song number and song name. You will be able to choose easily.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing an example of a procedure executed by a microprocessor. Explanation of symbols of main parts 1...Disc 2...Pickup 5...Controller 6...
Storage device 7...Input device 9...Slider motor 11...Display device

Claims (1)

[Claims] a storage means; an input means for inputting song number and song name information;
a controller for controlling the song title information inputted from the input means to be stored in the storage means in correspondence with the song number information in the index information read from the disk; and a song number or song name read from the storage means. and display means for displaying information, and when a song number or song name information is specified and input by the input means, the controller stores the song name or song number information corresponding to the specified song number or song name information from the storage means. A digital audio disc player characterized in that the digital audio disc player is controlled so as to read the data and display it on the display means.