JPH09237094A - Karaoke sing-along machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply animation images without interruption as the background image of a text display by the one animation image data base and reading-out section of a KARAOKE sing-along machine which drives electronic sound sources by the playing data of desired music. SOLUTION: The background image is reproduced by connecting the plural animation images during the reproduction of one piece of music. The animation image data storage capacity of a buffer section 7 is set from the number of the animation images desired to be connected during the reproduction of one piece of the music and the search time. The background image is then continuously reproduced without interruption even during the animation image data search. The buffer section 7 writes and reads out a data error flag signal into and out of memory at the same timing as the timing for the animation image signals. The memory section is then confined to one and the scale of the hardware is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke apparatus which drives an electronic sound source by performance data of a desired song and supplies a still image and a moving image as a background image for displaying lyrics.

[0002]

2. Description of the Related Art As a conventional karaoke apparatus, there is disclosed a technology in which a background image of karaoke is not interrupted, as disclosed in, for example, Japanese Unexamined Patent Publication No. 5-35288. There is. Some data storage units are provided with a buffer circuit so that the signal can be correctly reproduced even when the audio signal is skipped.

A conventional karaoke apparatus and a conventional buffer circuit will be described below with reference to the drawings. First, a conventional karaoke device will be described. FIG. 5 is a block diagram showing a configuration of an example of a conventional karaoke device. In FIG. 5, the conventional karaoke device includes a request unit 101, a song database 102 in which a plurality of song data is stored, a control unit 103, a character display unit 104, a sound source unit 105, a first moving image reproducing device 106, and a second moving image reproducing device 106. The moving image reproducing device 107, the moving image extracting device 108, and the image synthesizing unit 109 are included. FIG. 6 is a block diagram showing the configuration of the sound source unit 105 of the conventional karaoke apparatus. In FIG. 6, 110 is a music synthesizer block, 111 is a mixing amplifier block, and 112 is a microphone, the output of which is output via an amplifier 113 and a speaker 114.

Now, the music database 102 will be described in detail. The song database 102 is a read-only memory and is composed of, for example, an optical disc. A large number of music data stored in the music database 102 includes, for example, music information such as music music numbers, sound source parameters indicating the tone colors of musical instruments, and performance data centering on pitches and lengths of musical scores. Further, as image information, a code such as the atmosphere and season of the music is written in advance in the header of the music data, and data such as the music number, the title of the music, and the lyrics are recorded.

The operation of the conventional karaoke apparatus configured as above will be described. The request section 101 designates a desired music number and inputs it to the control section 103. The control unit 103 reads out the song data of the song number designated by the request unit 101 from a plurality of song data in the song database 102,
The read song data is output to the character display unit 104 and the sound source unit 105, and the specific code is output to the moving image extraction device 108.
According to the code output from the control unit 103, the moving image extracting unit 108 alternately switches the first moving image reproducing device 106 and the second moving image reproducing device 107 having the same moving image, and the moving image is displayed in the image combining unit 109 without holding time. Is output. Image synthesis unit 1
Reference numeral 09 denotes a moving image output from the moving image extraction device 108 and the song name and lyrics output from the character display unit 104, which are combined and displayed. At the same time, the sound source unit 105 outputs sound.

In the tone generator section 105, when a signal is inputted from the control section 103, the musical composition outputted from the music synthesizer section 110 shown in FIG. 6 and the singing voice inputted from the microphone 112 are mixed in the mixing amplifier section 111, Speaker 114 via amplifier 113
To output sound.

Next, a karaoke apparatus using a conventional buffer circuit as a data storage unit will be described. FIG. 7 is a block diagram when a buffer circuit is provided in the moving picture reproducing apparatus, and FIG. 8 is a block diagram showing a configuration of a conventional buffer unit. FIG. 9 is a timing diagram for writing a moving image signal, and FIG.
FIG. 6 is a write timing chart of a data error flag signal.

The moving picture reproducing apparatus shown in FIG. 7 includes a moving picture database section 120 and an information reading section 12 which are composed of an optical disk or the like.
1, a buffer unit 122 and a moving image demodulation unit 123. As shown in FIG. 8, the buffer unit 122 includes a serial-parallel (S / P) conversion unit 124, a first write address unit 125, a first memory unit 126, and a parallel-serial (P / S) conversion unit 127. , First read address section 1
28, a first address control section 129, a second write address section 130, a second memory section 131, a second read address section 132, and a second address control section 133.

The operation of the moving picture reproducing apparatus configured as described above will be described. The information reading unit 121 shown in FIG. 7 reads moving image data from the optical disc of the moving image database unit 120 and outputs it to the buffer unit 122. Buffer unit 12
The moving picture data stored in No. 2 is demodulated by the moving picture demodulation unit 123 and output.

As shown in FIG. 8, the buffer unit 122 stores the moving image serial signal and the data error flag signal which is set at the time of a read error among the signals output from the information reading unit 121. The moving image serial signal is 16-bit data and is converted into a parallel signal by the first serial-parallel conversion unit 124, and the first write address unit 125.
Is written in the first memory unit 126 in accordance with the address specified by. The first address controller 129 controls the write address and the read address so that desired data can be obtained. The moving image parallel signal written in the first memory unit 126 is read from the address designated by the first read address unit 128, and the parallel-serial conversion unit 127 is read.
Is converted into a video serial signal. The data error flag signal is written in the second memory unit 131 according to the address specified by the second write address unit 130, and the write address and the read address are read so that desired data can be obtained by the second address control unit 133. The address is controlled, and the data is read from the address designated by the second read address section 132.

Here, referring to FIGS. 9 and 10, the write timings of the moving image signal and the data error flag signal will be compared. The moving picture serial signal shown in FIG. 9B is synchronized with the LR clock shown in FIG.
Read out, converted into a parallel signal shown in (d) at serial-parallel conversion timing (c) in the serial-parallel conversion unit 124, and write timing (e).
Is written in the first memory unit 126. At this time, it is understood that the writing period of the moving image signal is 1/2 period of the LR clock (a). On the other hand, as shown in FIG. 10, the data error flag signal (g) is written in the second memory section 131 at the write timing (h). At this time, the write cycle of the data error flag signal is 1/4 cycle of the LR clock (a). Since the writing timings of the moving image signal and the data error flag are different as described above, the respective signals are individually written and read.

[0012]

However, in such a conventional structure, it is necessary to have two moving picture reproducing devices in order to eliminate the waiting time generated when the moving pictures are switched,
It has a problem that it requires a large amount of space. Further, regarding data storage, there is also a problem in that a buffer circuit must be provided separately for storing a moving image signal and a data error flag signal, which is costly.

The present invention has been made in view of such conventional problems, and is a karaoke apparatus that connects a plurality of moving images during reproduction of one song to form a background image, and connects them during reproduction of one song. An object of the present invention is to enable the background image to be reproduced without interruption during the moving image data search by setting the moving image data storage capacity of the buffer unit from the number of moving images and the time required for the moving image data search. Further, another object is to reduce the hardware scale of the buffer unit and suppress the cost.

[0014]

According to a first aspect of the present invention, there is provided a song database section for storing song data, a song data reading section for reading song data from the song database, and a movie database section for storing movie data. And an information reading section for sequentially reading out moving picture data from the moving picture database section, and a storage capacity for moving picture data exceeding a time required for searching a plurality of moving picture data, and sequentially storing moving picture data read out from the moving picture database section. A moving image data storage unit, a moving image demodulation unit that sequentially reads and demodulates and outputs the moving image data stored in the moving image data storage unit, and a moving image data storage unit that searches the read moving image data through the information reading unit To the music data read out from the music data reading unit, and a music data output via the control unit. A sound source unit that reproduces musical tones and a character display unit that displays character information according to the music data output via the control unit are provided, and a plurality of moving image data is continuously reproduced by one information reading unit. It is characterized by that.

In the invention of claim 2 of the present application, the moving picture data storage section stores a serial moving picture signal output from the information reading section and a data error flag signal output from the music data reading section. A write address section for setting an address for writing the serial moving image signal and the data error flag signal in the memory section, and an address for reading out the serial moving image signal and the data error flag signal written in the memory section. A read address section to be set, an address control section for controlling the timing of the write address section and the read address section, and a first serial-parallel conversion for converting a serial moving image signal into a parallel moving image signal and outputting the parallel moving image signal to the memory section. And a first parallel-serial converter for converting a parallel moving image signal read from the memory unit into a serial moving image signal. Section, a second serial-parallel conversion section that performs serial-parallel conversion a plurality of times so that the data error flag signal is synchronized with the clock of the serial moving image signal, and the parallel signal of the data error flag read from the memory section is serialized. And a second parallel-serial conversion unit for converting into a signal.

According to the invention of claim 1 of the present application having such characteristics, the moving image data storage capacity of the buffer unit is set based on the number of moving images to be connected during reproduction of one song and the time required for moving image data search. Since the accumulated moving image data is reproduced even during the search, the background image can be continuously reproduced. According to the invention of claim 2, in addition to such an action, the buffer section converts the data error flag signal a plurality of times by the second serial-parallel conversion section, and writes and reads it in the memory at the same timing as the moving image signal. The memory part and the address part can be shared, and the hardware scale can be reduced.

[0017]

DETAILED DESCRIPTION OF THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a karaoke apparatus according to the first embodiment of the present invention. FIG. 2 shows the relationship between the reproduction data and the read data according to the first embodiment. As shown in FIG. 1, the karaoke apparatus according to the present embodiment stores song data from a movie database unit 1, an information reading unit 2 for reading information from the movie database unit 1, a song database 3, and a song database 3, for example, an optical disc. A song data reading section 4 for reading, a control section 5 for reading a plurality (n pieces) of moving image data during reproduction of a song,
A request unit 6 for inputting a request signal to the control unit 5,
It includes a buffer unit (moving image data storage unit) 7 that stores a moving image signal and a data error flag, a moving image demodulating unit 8 that demodulates moving image data, a character display unit 9, an image synthesizing unit 10, and a sound source unit 11.

The song database 3 is the same as the song database 102 described in the conventional example. The moving picture database unit 1 is the moving picture database unit 102 described in the conventional example.
And is composed of, for example, m optical disks (m ≧ 1).

The operation of the karaoke apparatus according to the first embodiment having the above-described structure will be described. First, when the request unit 6 inputs a music request signal to the control unit 5, the control unit 5 reads the music data in the music database 3 from the music data reading unit 4. Next, according to the code written in the header of the read music data, the moving image data of the designated number in the moving image database unit 1 is searched and read through the information reading unit 2. The read moving image data is sequentially written in the buffer unit 7. After writing the moving image data to the end, the buffer unit 7 sequentially outputs the moving image data written first to the moving image demodulating unit 8. The video demodulator 8 demodulates video data,
It is output to the image composition unit 10. In the character display unit 9, the control unit 5
Information relating to the lyrics and songs output from the character display unit 9 is displayed as character information, and the image composition unit 10 superimposes the characters related to the lyrics and songs output from the character display unit 9 on the background image output from the video demodulation unit 8. . The sound source unit 11 starts playing a musical sound in accordance with the transmitted music data. Further, when the reading of the moving image data is completed, the control unit 5 searches for and reads the next moving image data designated in the moving image database unit 1 via the information reading unit 2. A character display unit 9, an image composition unit 10,
The moving image of the sound source unit 11 is the same as the conventional example.

In this embodiment, an optical disc is used as the moving image database section 1. For an optical disk, it takes an average of t _s seconds to search for data and start reading. As shown in FIG. 2, the control unit 5 receives a request for playing the moving image 1 at time s, and then the moving image database unit 1
Then, the moving image data 1 is searched from time K _s1 and read from time K _e1 . After that, writing of the moving image data 1 into the buffer unit 7 is started from time B _s , moving image data is written to the end of the buffer unit 7 at time B ₁ , and reproduction of the moving image data 1 is started from B ₁ . At this time, the time until the moving image data is accumulated in the buffer unit 7 is t _B seconds. For example, in the present embodiment, if three types of moving image data are connected and reproduced during reproduction of one song, t _B seconds are required for the time period represented by the following equation (1). t _B = t _s × 3 (seconds) (1) This is because, as shown in FIG. 2, the interval between reading and reproducing moving image data is shortened for each moving image data. Generally, when n kinds of moving image data are connected and reproduced, t
_B becomes nt _s (seconds).

Therefore, the storage capacity C _B of the buffer section 7 is
Bit rate read from disc is 44.1kHz
Assuming that each of the z and 2 channels has 16-bit data, the formula (2) is obtained. C _B = 44100 × 2 × 16 × t _B (Bit) = 176.4 × t _B (kbyte) (2)

Then, from the moving picture database section 1, time K _s2
Then, the reading of the moving image data 1 is completed. At the same time, the search for the moving image data 2 is started, and the reading is started from the time K _e2 .
Data is accumulated in the buffer unit 7. During that time, the moving image data is continuously reproduced. That reproduces the moving image data 1 from the time B _1, followed to end the reproduction at time B ₂ to start playing the video data 2, followed to end the reproduction at time B ₃ starts reproducing the moving image data 3. By doing so, the background image is reproduced without interruption.

As described above, according to this embodiment, the moving image data storage capacity C _B of the buffer unit is set based on the number of moving images to be connected during the reproduction of one song and the time required for the moving image data search. Since the accumulated moving image data is reproduced, the background image can be continuously reproduced with only one moving image database unit and the information reading unit.

Next, an embodiment of the buffer section 7 of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram showing a configuration of an embodiment of the buffer section 7 of the present invention, and FIG. 4 is a write timing diagram of a data error flag signal.
As shown in FIG. 3, the buffer unit 7 includes a first serial-parallel conversion unit 20, a write address unit 21, a memory unit 22,
It is configured to include a first parallel-serial conversion unit 23, a read address unit 24, an address control unit 25, a second serial-parallel conversion unit 26, and a second parallel-serial conversion unit 27.

The buffer unit 7 is composed of the blocks shown in FIG. 3, and performs the same operation as the conventional buffer unit with respect to the moving image serial data so that the write timing of the data error flag signal becomes the same as that of the moving image serial data. It was done. In the buffer unit 7 of this embodiment,
The first serial-parallel conversion unit 20, the first parallel-serial conversion unit 23, the write address unit 21, the read address unit 24 and the address control unit 25 are serial-parallel conversion units of the buffer unit 122 shown in FIG. 124, parallel-serial conversion unit 127, first write address unit 1
25, first read address section 128 and address control section 1
The same operation as that of each block of 29 is performed.

The operation of the buffer section shown in the second embodiment configured as described above will be described. As shown in FIG. 4, the data error flag signal is divided into upper and lower two data for each of the L channel and the R channel of the LR clock. Therefore, the write timing of the memory unit 2 is shared with the moving image serial data in the second parallel-serial conversion unit 26, and therefore 1 / L of the LR clock is used.
Read in 4 cycles. That is, the serial-parallel conversion timings (j) and (l) shown in FIG.
As shown in (k) and (m), two parallel data 1,
Convert as 2. The parallel data 1 is upper data for the L and R channels, and the parallel data 2 is lower data for the L and R channels. The two parallel data 1 and 2 thus converted are simultaneously written at the write timing shown in FIG. By doing this, it is possible to write the moving image parallel data in the memory unit 22 at a half cycle of the LR clock.

As described above, according to the present embodiment, the buffer unit performs timing adjustment in the serial-parallel conversion unit 26, and the data error flag signal is written and read in the memory at the same timing as the moving image signal. The hardware scale can be reduced by sharing the address control unit.

[0028]

As described in detail above, according to the invention of claim 1 of the present application, the moving image data storage capacity of the buffer unit is set based on the number of moving images to be connected during the reproduction of one song and the time required for the moving image data search. Since the accumulated moving image data is reproduced even during the moving image data search, the background image is continuously reproduced. In addition to this effect, the buffer unit divides the data in the second serial-parallel conversion unit to parallel-convert the data error flag signal, and the data error flag signal is written into and read from the memory at the same timing as the moving image signal. , Sharing the memory part and the address part to reduce the hardware scale,
It will reduce the cost.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a karaoke device according to a first embodiment of the present invention.

FIG. 2 is a time chart showing a relationship between reproduction data and read data according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a buffer circuit according to a second embodiment of the present invention.

FIG. 4 is a time chart showing a circuit timing of a data error flag signal according to the second embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a conventional karaoke apparatus.

FIG. 6 is a block diagram showing an example of a sound source unit in a conventional example.

FIG. 7 is a block diagram showing a moving image reproducing device of a second conventional example.

FIG. 8 is a block diagram showing a configuration of a buffer circuit of a second conventional example.

FIG. 9 is a time chart showing moving image signal writing timing in the second conventional example.

FIG. 10 is a time chart showing a data error flag signal write timing in the second conventional example.

[Explanation of symbols]

 1 Video Database Section 2 Information Reading Section 3 Song Database 4 Song Data Reading Section 5 Adjustment Section 6 Request Section 7 Buffer Section 8 Video Demodulation Section 9 Character Display Section 10 Image Compositing Section 11 Sound Source Section 20 First Serial-Parallel Conversion Section 21 Write address unit 22 Memory unit 23 First parallel-serial conversion unit 24 Read address unit 25 Address control unit 26 Second serial-parallel conversion unit 27 Second parallel-serial conversion unit

Claims (3)

[Claims] 1. A song database section for storing song data, a song data reading section for reading song data from the song database, a movie database section for storing movie data, and a movie data section for sequentially reading movie data from the movie database section. An information reading unit, a moving image data storage unit that has a moving image data storage capacity that exceeds the time required to search for a plurality of moving image data, and sequentially stores the moving image data read from the moving image database unit, and the moving image data storage unit. A moving image demodulation unit that sequentially reads and demodulates and outputs the stored moving image data, a read moving image data is searched through the information reading unit and output to the moving image data storage unit, and read from the song data reading unit. A control unit for outputting music data, a sound source unit for reproducing a musical sound according to the music data output via the control unit, and the control unit And a character display unit for displaying character information corresponding to the music data output via a karaoke apparatus characterized by continuously reproducing a plurality of video data in one of the information reading section. 2. The moving image data storage unit stores a serial moving image signal output from the information reading unit and a data error flag signal output from the music data reading unit, and a serial moving image signal and data. A write address section for setting an address for writing an error flag signal in the memory section; a read address section for setting an address for reading the serial moving image signal and the data error flag signal written in the memory section; An address control unit that controls the timing of the write address unit and the read address unit; a first serial-parallel conversion unit that converts a serial moving image signal into a parallel moving image signal and outputs the parallel moving image signal to the memory unit; A first parallel-serial converter that converts the read parallel video signal to a serial video signal, and a data error A second serial-parallel conversion unit that performs serial-parallel conversion a plurality of times so that the lag signal is synchronized with the clock of the serial moving image signal; and a second serial-parallel conversion unit that converts the parallel signal of the data error flag read from the memory unit into a serial signal. 2. The karaoke apparatus according to claim 1, further comprising two parallel-serial conversion units. 3. The karaoke apparatus according to claim 1, wherein the moving image database section is composed of m (m ≧ 1) optical disks.