JPH02285559A - Control mechanism for memory device in karaoke device - Google Patents

Abstract

PURPOSE:To widely shorten the time for processing by setting musical information per unit to fixed capacity, composing the respective musical information of plural continuous blocks and integrally reading the musical information composed of the plural blocks and designated by inputting a numerical value to a program selection panel. CONSTITUTION:The musical information are set to the fixed capacity and the musical information at every piece of music are written to the continuous blocks. Further, a continuous number is added at every piece of musical information and this number is made correspondent to the numerical value inputted from a program selection panel 2. When the desired piece of KARAOKE (recorded orchestral accompaniment) music is selected by inputting the numerical value from the program selection panel 2, the relation of formula I is satisfied when a music number determined in advance is defined as N and the leading block number of the corresponding musical information is defined as B. Thus, when the music number is inputted from the program selection panel 2, the numerical value of B is calculated by a control means 6 and the detection head of a memory device 1 is immediately moved to a prescribed position. Then, the information of this block can be continuously read from the position and speedy processing can be executed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention stores a plurality of pieces of music information obtained by binary encoding karaoke music, and extracts arbitrary music information from the music information in a short time. The present invention relates to a control mechanism for a storage device that allows the user to download music information that is not stored on the terminal device side using a public telephone line.

[Conventional technology and its problems]

In a storage device used in a karaoke machine that stores a large amount of music information that is binary encoded karaoke music and retrieves the desired karaoke song from this information, it is better to store as much music information as possible on the terminal device side. Since it is fast, it is convenient to use CD-ROM or CD-RAM.

However, storage devices that use optical disks such as CD-ROMs generally handle variable length files. In this case, it is necessary to read according to the positional information of the block in the file called the management block, so when reading the file, you must either read the management information from the management block or read the management information into memory. This will slow down the read time. Also,
If the positions of the blocks of the corresponding file on the disk are discrete, it takes time for the detection head to repeat the radial movement many times, resulting in a disadvantage that the reading speed becomes slow.

Furthermore, if the desired music information is not stored in the storage device, the desired music information must be downloaded from the data base of the host computer connected to the public line as a secondary means; Since it takes time to search the storage device, it takes even more time to download, which poses a problem in that the user is forced to wait extra time.

The present invention solves the above-mentioned problems of the conventional art, and allows music information stored in a storage device to be searched in a short time, and even when a desired song is not found in the storage device, music information stored in a host computer can be retrieved from a data base stored in a host computer. It is an object of the present invention to provide a control mechanism for a storage device that can instantly download music information to a terminal device.

[Means to solve the problem]

In order to solve the above-mentioned conventional problems, the present invention binary-encodes songs and lyrics into music information, selects desired music information from a storage device that stores a large amount of this music information with a music selection panel, and selects the desired music information. In a karaoke device that performs processing by a control means to play music and display lyrics, each unit of music information has a fixed capacity, each piece of music information is composed of a plurality of consecutive blocks, and is specified by numerical input to the song selection panel. We used a method of reading out music information from multiple professional and seven-person musicians all at once.

Furthermore, among the plurality of blocks stored in the storage device, the last block is configured into a bit string, and the music information stored in the storage device and the music information not stored in the storage device are identified by binary codes, and the music selection panel A method was also used in which the above bit string was searched by numerical input from the computer, and music information was selectively loaded from a storage device or a host computer connected via a public line.

[For production]

The storage device stores a large amount of music information, but each piece of music information is given a fixed capacity of a certain value, and when searching, the nature of the internal information does not affect the search, and only the permutation of the music information is used. The function is to facilitate numerical management. Furthermore, each piece of music information is configured into a plurality of consecutive blocks, and has the function of being managed in small capacity units. The numerical value input from the music selection panel is calculated based on the number of constituent blocks, the block is designated based on the calculated value, and the block is loaded into the memory of the control means.

Further, the bit string configured in the final block has the function of identifying whether or not specific music information is stored in the storage device, and is indicated by ■ and O. The control means first searches for this, and if it is determined that it is stored in the storage device, it is loaded from there into the control means, and if it is determined that it is not stored, it is immediately downloaded from the host computer. play.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in more detail with reference to the attached drawings. FIG. 1 is a schematic block diagram of a terminal of a karaoke apparatus, and 1 is a block diagram of a terminal of a karaoke apparatus, in which numeral 1 stores a large amount of music information obtained by binary encoding karaoke music. 2 is a music selection panel for selecting the desired karaoke music by inputting numerical values; 3 is a sound source for playing the music part of the music information; 4 is for processing the lyrics part of the music information. It is a lyrics display means for. A modem 5 is used to download music information not stored in the storage device 1 from the data storage of a host computer connected via a public line when music information is selected. Each of these parts is centrally controlled by control means 6. Note that the sound source 3 is connected to an amplification amplifier 7 and a speaker 8, and the lyrics display means 4 is connected to a display 9.

In the present invention, the storage device 1 is managed rationally with the above-described configuration, but since each karaoke music song has a different playback time, if this is directly encoded in binary as music information, each song will have a different playback time. There is a problem in that the length of the song, etc. must be stored in the file header located at the beginning of the music information, and control must be performed based on this information. Therefore, in this embodiment, the music information has a fixed capacity, and the music information for one song is written in consecutive blocks.

Further, a consecutive number is assigned to each piece of music information, and this number is made to correspond to the numerical value input from the music selection panel 2.

The capacity of 1 block, which is the minimum unit when writing to storage device 1, is 2048 hydes, of which 288 hydes are planned to be used for error correction, so the actual capacity of 1 block is 1760 hydes. becomes. Also, if the music information for one song is the size of 89 km high 1-, then 1
The song will use 51 blocks. By dividing the writable capacity of the storage device 1 by these 51 blocks, the maximum number of songs that can be stored can be determined. - If a CD-ROM is used as the storage device 1, a maximum of about 5,300 songs can be stored. Note that the capacity of one block and the size of music information are not limited to these values, and can be set arbitrarily.

Therefore, when selecting desired karaoke music by inputting numerical values from the music selection panel 2, if the predetermined song number is N and the corresponding music information first block number is B, then the following relationship is established. It works.

B=51 Since the head moves to a predetermined position and 51 blocks of information can be read out continuously from that position, rapid processing is possible. FIG. 2 shows a flowchart of the process from music selection to information reading.

Next, the process when the desired karaoke music is not stored in the storage device 1 will be explained. In order to determine whether or not the desired karaoke music is stored in the storage device 1, the contents of the storage device 1 must first be searched, but it would take too much time each time to check the entire contents. .

Therefore, among the blocks stored in the storage device 1, the last block is used as a management block for identifying the presence or absence of information, and this block is searched first. This management block is loaded into the memory of the control means 6 when the terminal device is powered on, and searches this memory every time a numerical value is input through the music selection panel 2 to check whether the storage device 1 contains the selected information. Determine whether or not. For this purpose, as the bit configuration of the management block, a bit string is constructed using 1760 hides, which is the actual capacity of one block, and the bit string is indicated by 1 if there is information, and by O if there is no information.

Therefore, since it is possible to manage 8 songs with 1 hide, 1
If all 760 hides are used for management, the maximum number of songs to be managed is 1.
The total number of songs is 4080, which is greater than the maximum number of songs stored in the storage device 1. In other words, it is possible to perform sufficient management without omissions.

FIG. 3 shows a flowchart of processing including searching the contents of the storage device 1.

When the power is turned on (10), the management focus block is loaded into the memory of the control means (11).

If you input the desired karaoke music as the numerical value N using the music selection panel 2 (12), it will be determined whether the position corresponding to N in the management bit block within the control means is 0 or 1, that is, 8 wins. 1 is stored in the storage device 1 (13). If it is determined to be YES here, the first number of the block is calculated as described above (14), and after successively reading from the storage device 1 (
15), the music is played and the lyrics are displayed (16), and after the end, the system waits for song selection again. However, if NO at the determination stage, the host computer is immediately instructed to enter the numerical value N via the modem 5 (17), and the corresponding music information is downloaded to the terminal device (18) - the music is played back and the lyrics are displayed. .

In this embodiment, the storage device 1 is planned to be a CD-ROM, which is the most common among optical disks, but the storage medium is not limited to this, and write-once CI)-ROM or CD-RAM may also be used. It performs the same function. Also,
The storage capacity used for music information per song is not limited to the above-mentioned 89 kilobytes; the larger the amount of information, the better the quality of music playback and lyrics display. In this case, the number of available blocks increases accordingly.

〔Effect of the invention〕

Since the present invention has the above-described configuration, management of music information written to a storage device becomes extremely easy. That is,
By simply determining the first block position by calculation and reading out a fixed capacity of blocks continuously from there, you can reliably load the information for one song, and there is no need to move the detection head frequently. , it was possible to significantly shorten processing time.

In addition, 1Pro/7Li is used as a management block for music information stored in the storage device, and the presence or absence of music information is determined only by this block, so this management block must be searched first when starting operation. For example, it can be determined whether music information should be loaded from the storage device or the host computer. Therefore, the present invention provides a control mechanism for a storage device that can shorten the processing time required when retrieving music information, such as enabling quick processing even when the storage device does not contain necessary music information. I was able to do that.

[Brief explanation of drawings]

Fig. 1 is a schematic block diagram showing a terminal device of a karaoke machine, Fig. 2 is a readout flowchart when music information is stored in a storage device, and Fig. 3 is a case where music information is read after identifying the storage location. This is a flowchart. In the figure, 1... storage device, 2... music selection panel, 3...
...Sound source, 4...Lyrics display means, 5...Modem, 6
...control means. that's all

Claims (1)

[Claims] 1. Music information is obtained by binary encoding music pieces and lyrics, and desired music information is selected from the storage device 1 which stores a large amount of this music information using the music selection panel 2, and the music information is transmitted to the control means 6. In a karaoke device that processes music to play music and display lyrics, each unit of music information has a fixed capacity, and each piece of music information is composed of a plurality of consecutive blocks, and the music information is specified by inputting numerical values to the song selection panel 2. A control mechanism for a storage device in a karaoke device characterized by reading out music information consisting of a plurality of blocks all at once. 2. Among the blocks stored in the storage device, the last block is configured into a bit string, and the music information stored in the storage device and the music information not stored in the storage device are identified by binary codes, and the music selection panel 2. A control mechanism for a storage device in a karaoke apparatus according to claim 1, wherein said bit string is retrieved by inputting a numerical value, and music information is selectively loaded from said storage device or a host computer connected via a public line. 3. A control mechanism for a storage device in a karaoke apparatus according to claim 1 or 2, wherein a CD-ROM is used as the storage device. 4. A control mechanism for a storage device in a karaoke apparatus according to claim 1 or 2, wherein a CD-RAM is used as the storage device.