JPH07219573A - Medium for 'karaoke' singing equipment and 'karaoke' singing equipment - Google Patents

Abstract

PURPOSE:To use a storage device with small capacity and to provide the 'KARAOKE' singing equipment which is small in size and inexpensive and the medium used for the 'KARAOKE' singing equipment. CONSTITUTION:On the medium 2, digital audio data on respective pieces of music and display condition data are recorded and character font data which are common to all the pieces of music are recorded. Once music is selected with a music selection switch 4, the corresponding display condition data are read out by a reproduction device 3 and stored in a display condition data RAM 6. According to character codes in the display condition data, necessary font data are read out of the medium 2 by the reproduction device 3 and stored in a font RAM 5. The character codes coordinates, and wait time in the display condition data are obtained and when a counter 9 reaches the value of the wait time, the font data corresponding to the character codes are taken out of the font RAM 5 and passed to a display processor 7 together with their coordinates; and the font data are drawn at the coordinate positions to obtain a character video output.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium on which karaoke performance information is recorded and a karaoke device capable of reading data from the medium to reproduce voice and display characters.

[0002]

2. Description of the Related Art Generally, a karaoke apparatus reproduces voice information and displays characters such as lyrics. When displaying characters such as lyrics in a conventional karaoke apparatus, bitmap font data corresponding to all character codes that can be displayed in the karaoke apparatus is recorded in a semiconductor ROM, and this semiconductor ROM is equipped. Since the size of the characters to be displayed is large in the karaoke device, a large-capacity semiconductor ROM is required to record all the displayable bitmap font data. Therefore, there is a problem that the device becomes large and the cost becomes high.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a small-sized and low-priced karaoke device without using a large capacity semiconductor ROM and a medium used in the karaoke device.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a karaoke device medium loaded and used in a karaoke device,
At least voice data of a plurality of songs, all kinds of character font data used in the plurality of songs, display condition data including a character code of each song of the plurality of songs and its display timing are recorded. It is a feature.

Further, in a karaoke device loaded with the karaoke device medium according to claim 1, the karaoke device medium is recorded based on the music selection means for performing music selection and the music selection information input by the music selection device. Reproduction means for reading out at least voice data, character font data, and display condition data, voice output means for outputting voice based on the voice data read from the reproduction means, and characters read from the reproduction means A font storage means for storing font data, and a font is taken out from the font storage means on the basis of a character code in the display condition data read from the reproducing means, and a character is generated at a timing based on a display timing in the display condition data. It is characterized by having a video output means for outputting a video.

[0006]

According to the present invention, the character font data necessary for the music recorded on the karaoke device is recorded on the karaoke device medium. In the karaoke device, based on the music selection information,
From the karaoke device medium, voice data, character font data necessary for displaying characters such as lyrics, and display condition data including character codes such as lyrics and display timing are read by the reproducing means. At this time, only the character font data corresponding to the character code needs to be read. The read character font data is stored in the font storage means. The read audio data is reproduced and output by the audio output means. The video output means refers to the read display condition data, extracts each character font data from the font storage means based on the character code, and outputs the video in accordance with the display timing. In this way, since the font storage means stores only the character font data necessary for displaying the lyrics of the selected song, it is possible to use a low-capacity storage means and reduce the size of the device. And cost reduction can be achieved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of the karaoke apparatus of the present invention. In the figure, 1 is a microprocessor, 2 is a medium, 3 is a reproducing device, 4 is a music selection switch, and 5
Is a font RAM, 6 is a display condition data RAM, 7 is a display processor, 8 is a video RAM, 9 is a counter, 10 is a digital audio decoder, 11 is a switch, 12 is a master clock, and 13 is a character code table RAM.

On the medium 2, n pieces of data are recorded, one font data file, n display condition data files, and n digital audio data files are recorded. All font data files are n
It is composed of all kinds of character codes used in music and font data corresponding to them, and can be recorded in ascending order of the character codes, for example. The display condition data file is composed of codes of characters to be displayed, coordinates on the display screen, and data of waiting time before starting display, and is recorded in the order of characters to be displayed. The digital audio data file is composed of digital audio data used in each song. The display condition data file and the digital audio data file are provided for each song. In addition to these pieces of information, the medium 2 is recorded with a directory portion for searching these pieces of information, and video data and the like can be recorded. The medium 2 is composed of a single or a plurality. When the medium 2 is composed of a plurality of media 2, it can be configured to be replaceable by the user or automatically replaceable. Alternatively, it is also possible to adopt a configuration in which the plurality of media 2 are held so as to be always reproducible.

The reproducing apparatus 3 receives digital audio data from the medium 2 based on an instruction from the microprocessor 1.
Reads font data, display condition data, etc. The switch 11 switches whether to send the data read by the reproducing apparatus 3 to the digital audio decoder 10 or to another means via the microprocessor 1 according to an instruction from the microprocessor 1. Song selection switch 4
Is composed of selecting means for the user to select a song. The font RAM 5 stores font data necessary for displaying characters such as lyrics of a selected song together with character codes. Character code table RAM1
In 3, the character code used in the selected song is stored. The display condition data RAM 6 stores the display condition data read corresponding to the selected music. The display processor 7 refers to the character code in the display condition data stored in the display condition data RAM 6, obtains font data from the font RAM 5 based on the character code table RAM 13, and generates a character image. At this time, the video RAM 8 is used. The generated character image is output based on the display timing in the display condition data. The digital audio decoder 10 includes a reproduction device 3
Play the digital audio data read in,
Output audio.

The master clock 12 is a clock for determining the timing of the entire device. Counter 9
Is used to count the clock of the master clock 12 and to control the timing of output of a character image by the display processor 7. The microprocessor 1 controls each part of the device.

Font RAM 5, display condition data RAM
6, the character code table RAM 13 and the like can be configured by different storage devices, but can be configured by a single storage device together with the work RAM of the microprocessor 1 and can be used by dividing the area. A semiconductor RAM or the like can be used as these storage devices. The character code table need not be created, and in that case, the character code table RAM 13 is not necessary.

FIG. 2 is an explanatory diagram of an example of the data format of the medium. As described above, n pieces of data are recorded on the medium 2, and the font data file is 1
, N display condition data files and n digital audio data files are recorded. In the font data file, as shown in FIG. 2A, for all character codes used in all n songs, pairs of character codes and font data corresponding to the character codes are recorded. In FIG. 2A, m pairs of character codes and font data are recorded. As the font data, bitmap data may be recorded as it is, or may be recorded as compressed data. Also,
As the font data, various attribute information such as color and brightness can be stored in addition to the information about the shape of the character. Furthermore, an index can be recorded so that the beginning of each character code in the font data file can be immediately recognized. The character code and font data pairs can be recorded in ascending order of the character code, for example.

The display condition data file is provided for each music piece. FIG. 2B shows the format of one display condition data file. In the display condition data file, a plurality of data sets of a character code to be displayed, coordinates on the display screen, and data of waiting time before starting display are recorded. These data sets are recorded in the order in which they should be displayed. This data set may be configured for each character to be displayed, or may be configured as a set of display start coordinates and waiting time for the character code string. As the waiting time data, the time from the start of performance may be recorded, or the waiting time after the previous character is displayed may be recorded. In FIG. 2B, q sets of character codes, coordinates, and waiting times are recorded.

The digital audio data file is
As shown in FIG. 2C, it is composed of digital audio data used in each song. One file is recorded for each song. The digital audio data may be constructed in a data format which has been used conventionally.

FIG. 3 is a flow chart showing an example of the operation in one embodiment of the karaoke apparatus of the present invention. First, in S21, the music selection is performed by using the music selection switch 4. It is assumed that the song selection switch 4 selects song number 1, for example. Then, the microprocessor 1 causes the S22
In step S23, the switch 11 is closed to the side a, that is, in the side of the microprocessor 1, and in step S23, the reproducing apparatus 3 is instructed to read the display condition data file of the music number 1. The reproducing device 3 reads the display condition data corresponding to the music number 1 from the medium 2. The read display condition data is displayed by the microprocessor 1 on the display condition data RA.
Stored in M6. Then, in S24, the character code used in the music number 1 is extracted from the display condition data stored in the display condition data RAM 6 and stored in the character code table RAM 13. Further, the contents stored in the character code table RAM 13 are sorted, for example, in ascending order of the character codes. In this way, the character code table is created.

At S25, the microprocessor 1
Instructs the reproduction device 3 to read the font data from the font data file. The font data is read out by referring to the character code table generated in S24 and stored in the character code table RAM 13, and the character codes are sequentially taken out. The fetched character code and the character code in the font data file are sequentially compared, and when the character codes match, the character code and font data are stored in the font RAM 5. That is, if the character code xi of the character code table represents the character code j of the font data file, the character code j and the font data j are stored in the font RAM 5. This operation is performed for all the characters in the character code table. At this time, when the data in the character code table and the font data file are arranged in the ascending or descending order of the character code, the font data file is searched once and corresponds to the character code in the character code table. You can get all the font data. In this way, only the character code and font data required for song number 1 are stored in the font RAM 5
To store.

Next, the microprocessor 1 closes the switch 11 to the side of b, that is, the side of the digital audio decoder 10 in S26, and in S27.
The playback device 3 is instructed to read the digital audio data file corresponding to song number 1. Playback device 3
Starts reading the digital audio file and sends reproduction start information to the microprocessor 1. Upon receiving the reproduction start information from the reproduction device 3, the microprocessor 1 immediately resets the counter 9. Further, when the digital audio data is input, the digital audio decoder 10 starts decoding processing and outputs audio.

During voice output, the microprocessor 1 uses the S
At 28, processing for displaying characters is performed. The microprocessor 1 sequentially refers to the display condition data stored in the display condition data RAM 6 to obtain the character code, the coordinates to be displayed, and the waiting time until the display is started. Then, it waits until the value of the counter 9 becomes the waiting time. When the value of the counter 9 reaches the waiting time, the counter 9 is reset and the font data corresponding to the character code is obtained from the font RAM 5 and the display processor 7 is instructed to display the character together with the coordinates. When the value of the waiting time is displayed as the accumulated time from the start of the music, the counter 9 is not reset for each character display. The display processor 7 displays the video R
Draw font data at the coordinates of AM8. For example, k
Character code yk and coordinate p as the second display condition data
If k and the waiting time tk are stored, it waits until the value of the counter 9 reaches tk. And the character code yk
If the character code in the font RAM 5 corresponding to is the character code 1, the font data 1 is stored in the video RAM.
Drawing at coordinates pk of 8. Such processing is sequentially repeated for each set of character codes, coordinates, and waiting time of the display condition data. The display processor 7, in parallel with the drawing process instructed by the microprocessor 1,
The contents of the video RAM 8 are constantly output as a video signal. By repeating the drawing process instructed by the microprocessor 1, the characters are sequentially displayed.

In this example, the audio output and the character image output are not specially synchronized, but the master clock 12 causes the microprocessor 1, the counter 9, and
Since the digital audio decoder 10 is operated, the voice output and the character image output do not deviate from each other.

In the above example, only the character display is explained, but it is also possible to display the character image together with the image information. When the video information is separately supplied, the character video output output from the display processor 7 and the video information may be superimposed and displayed. In the case of a still image, the image may be stored in another video RAM, and the image and the character image may be superimposed and output as a video.

The video information can be read by the reproducing device 3. In that case, after reading the digital audio data, the switch 11 is switched so that the output of the reproducing apparatus 3 is input to the video information decoder, the video information is read, and the video information decoder obtains the video output to obtain the character. Superimpose with video output. At this time, the digital audio data is temporarily
It may be stored in a memory or the like.

[0022]

As is apparent from the above description, according to the present invention, since only the font data of the characters used in the selected music piece is stored in the storage means, the number of characters to be stored is greater than in the conventional case. There are few types of characters and characters, and it requires less storage capacity. Therefore, instead of the large-capacity semiconductor ROM storing the font data, a low-capacity storage device can be used to display characters, and the size and cost of the device can be reduced. is there.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a karaoke device of the present invention.

FIG. 2 is an explanatory diagram of an example of a data format of a medium.

FIG. 3 is a flowchart showing an example of an operation in one embodiment of the karaoke apparatus of the present invention.

[Explanation of symbols]

1 ... Microprocessor, 2 ... Medium, 3 ... Playback device, 4
... Music selection switch, 5 ... Font RAM, 6 ... Display condition data RAM, 7 ... Display processor, 8 ... Video RAM, 9 ... Counter, 10 ... Digital audio decoder, 11 ... Switch, 12 ... Master clock, 1
3 ... Character code table RAM.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location G11B 23/00 X 7177-5D 27/34 P 8224-5D H04N 5/91

Claims (2)

[Claims] 1. A medium for a karaoke device loaded into a karaoke device and used, at least voice data of a plurality of songs, all kinds of character font data used in the plurality of songs, and each song of the plurality of songs. A medium for a karaoke device, characterized in that display condition data including a character code for each and a display timing thereof is recorded. 2. A karaoke device loaded with the karaoke device medium according to claim 1, wherein the karaoke device medium is recorded based on music selection means for performing music selection and music selection information input by the music selection device. Reproduction means for reading out at least voice data, character font data, and display condition data, voice output means for outputting voice based on the voice data read from the reproduction means, and characters read from the reproduction means A font storage means for storing font data, and a font is taken out from the font storage means on the basis of a character code in the display condition data read from the reproducing means, and a character is generated at a timing based on a display timing in the display condition data. A karaoke device having a video output means for outputting a video.