JP4182590B2 - Mobile karaoke system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable karaoke apparatus that can be carried by a user, a stationary karaoke apparatus that provides music to the portable karaoke apparatus, and a portable karaoke system that includes the portable karaoke apparatus and the stationary karaoke apparatus.
[0002]
[Prior art]
Currently, karaoke songs are generally sung in a karaoke box or a restaurant where a stationary karaoke device is installed. However, the stationary karaoke apparatus cannot be moved, and the installation place is limited. Therefore, the singing place is limited to the above place.
[0003]
On the other hand, a portable karaoke device has also been proposed. A general portable karaoke apparatus has a built-in sound source and effector, and performs a karaoke performance by setting a ROM card or the like storing song data.
[0004]
[Problems to be solved by the invention]
However, the sound source and effector that can be built in the portable karaoke device are much cheaper than those of the stationary karaoke device, and there is a drawback that the karaoke performance sound that can be generated is not good. Further, since the sound source and the effector consume a large amount of power, there is a problem that it is necessary to enlarge the battery as a power source and it is difficult to reduce the size.
[0005]
In addition, because the functions of the sound source and the like are different, the song data for the stationary karaoke device cannot be used for the portable karaoke device, and it is necessary to create another song data for the portable karaoke device even for the same song. there were.
[0006]
  The present invention relates to a portable karaoke apparatus capable of reproducing a small and high-quality karaoke performance sound.When, A stationary karaoke device connected to this portable karaoke deviceOrThe purpose is to provide a portable karaoke system.
[0007]
[Means for Solving the Problems]
  The invention of claim 1 stores storage means for storing compressed music data including compressed karaoke performance sounds;AboveA portable karaoke apparatus comprising: a reproducing unit that decompresses the compressed music data read from the storage unit and outputs a karaoke performance sound;
  karaokePerformanceMusic data storage means for storing music data for synthesizing sounds, musical sound synthesis means for synthesizing karaoke performance sounds based on the music data, and acoustic output of the synthesized karaoke performance soundsPerformance sound memory for digital recording withOutput means;Digital recordingThe portable karaoke apparatus is connected to compression means for compressing the recorded karaoke performance sound and generating compressed music data.Can be separated, saidThe compressed music dataMobile karaoke equipmentA stationary karaoke device comprising: writing means for writing to the storage means;
  KaraThe
  If the portable karaoke device is connected to the writing means, the compression means of the stationary karaoke device generates the compressed music data and erases the digitally recorded karaoke performance sound,
  The writing unit of the stationary karaoke apparatus writes the compressed music data generated by the compression unit into the storage unit of the portable karaoke apparatus if the portable karaoke apparatus is connected.The
[0008]
According to a second aspect of the present invention, in the first aspect of the invention, the compression means generates data in which the karaoke performance sound is compressed, and reproduction restriction information, song name information, song number information, lyrics information, guide melody are included in this data. It is a means for generating compressed music data in which all or part of information is embedded.
[0009]
  The invention of claim 3 is claimed in claim1 orIn the invention of 2,A portable karaoke apparatus for limiting the number of times of reproduction or the reproduction period based on the reproduction restriction information.It is provided with.
[0015]
In this invention, the karaoke performance sound synthesized by the stationary karaoke apparatus is compressed and written to the portable karaoke apparatus. As the compression method, a method that maintains the sound quality as much as possible and has a high compression rate is used. For example, an MP3 method, a TwinVQ method, or the like may be used. Thereby, the high-quality karaoke performance sound of the stationary karaoke apparatus can be loaded onto the portable karaoke apparatus and reproduced.
[0016]
In the present invention, reproduction restriction information, song name information, song number information, lyrics information, guide melody information, and the like are written together with the karaoke performance sound. The reproduction restriction information includes number restriction information and period restriction information. When the portable karaoke device counts the number of reproductions and reproduces the predetermined number of times, the compressed music data is erased or the predetermined period has elapsed. Sometimes, by deleting this compressed music data, unlimited reproduction can be restricted and copyright can be protected. Also, music name information and music number information are written to facilitate music selection. By writing the lyrics information, the lyrics can be displayed in synchronization with the reproduction of the karaoke performance sound. Also, by writing guide melody information, it becomes possible to generate a guide melody in synchronization with the karaoke performance sound or to score a karaoke song.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
A portable karaoke system according to an embodiment of the present invention will be described with reference to the drawings.
This portable karaoke system is composed of a stationary karaoke apparatus installed in a karaoke box or the like and a portable karaoke apparatus. The stationary karaoke apparatus plays karaoke music by downloading music data, which is automatic performance data such as MIDI data, from the distribution center and sequentially inputting the music data to the sound source device. That is, the sound source device generates a karaoke performance sound based on the music data. Such a stationary karaoke apparatus incorporates a tone synthesizing LSI that generates high-quality musical sounds and an effect DSP that provides realistic reverberation as a sound source device. The karaoke performance sound generated using such an element has a quality comparable to that of an actual performance. This karaoke performance sound is output from a speaker via an amplifier.
[0019]
The stationary karaoke apparatus of the present invention has a function of encoding karaoke performance sounds formed by the sound source apparatus into MP3 data. The MP3 data can compress a karaoke performance sound in a CD format with a sampling frequency of 44.1 kHz and a quantization of 24 bits to about 1/10 with a sound quality of almost the same quality. The compressed MP3 data is written into a portable karaoke apparatus connected via a connector.
[0020]
When a user uses a stationary karaoke device in a karaoke box or the like, he connects his portable karaoke device to the stationary karaoke device, and requests and sings a karaoke song with the stationary karaoke device. The karaoke performance sound of the song is MP3 compressed and written to the portable karaoke device. After the use of the stationary karaoke device is finished, the portable karaoke device can be detached from the stationary karaoke device, and the karaoke performance sound can be reproduced by the portable karaoke device alone. The user can practice the same music as the stationary karaoke apparatus using the portable karaoke apparatus.
[0021]
FIG. 1 is a block diagram of a stationary karaoke apparatus constituting the karaoke system. This stationary karaoke apparatus is a so-called communication karaoke apparatus installed in a karaoke box or the like. The song data memory 10 stores a plurality of song data for playing karaoke songs. Of the plurality of music data, the one requested by the user is read out for performance. The sequencer 11 reads the requested music data. The sequencer 11 sequentially reads the music data of the requested music from the music data memory 10 and inputs it to the musical tone synthesis unit 12. The music data is composed of a plurality of tracks and data for simultaneously generating musical sounds of a plurality of parts such as orchestras and bands. In addition to the performance track, the music data includes a guide melody track, a lyrics track, an effect control track, and the like, and music title information and music number information are written in the header. The music synthesis unit 12 synthesizes karaoke performance sounds of orchestras and bands based on the music data. The synthesized karaoke performance sound is input to the effector 13. The effector 13 gives effects such as hall reverberation to the input karaoke performance sound. All the above processing is performed digitally, and the digital karaoke performance sound to which the effect is applied is converted into an analog musical sound by the DAC 14. The karaoke performance sound converted into the analog signal is output from the speaker 17 via the mixer 15 and the amplifier 16.
[0022]
In addition, the singing voice input from the microphone 18 is also input to the mixer 15. The singing voice is mixed with the karaoke performance sound by the mixer 15 and output from the speaker 17.
[0023]
On the other hand, the digital karaoke performance sound output from the effector 13 is input to the DAC 14 and recorded as digital. When the karaoke apparatus is constituted by a computer system using a CPU, this recording can be performed by so-called hard disk recording. That is, the digital karaoke performance sound output from the effector 13 is recorded by the CPU writing it on the hard disk. This digital karaoke performance sound is data in a CD format with a sampling frequency of 44.1 kHz and 24 bits, and the amount of data is extremely large at about 10 MB per minute. Therefore, this is encoded into MP3 data and compressed to about one-tenth the data amount. This encoding is performed by the MP3 encoding unit 22. This MP3 encoding unit 22 can also be realized by software by a CPU. It should be noted that the karaoke performance sound data in the CD format for which MP3 encoding has been completed may be deleted.
[0024]
A writing unit 23 is connected to the MP3 encoding unit 22. The writing unit 23 has a connector such as a USB, for example, and is connected to the portable karaoke apparatus 2 via this connector. As shown in FIG. 2, the portable karaoke apparatus 2 has a built-in MP3 data memory 31 composed of SRAM or EEPROM (flash ROM), and the MP3 encoded karaoke performance sound is written into the MP3 data memory 31.
[0025]
Note that the tone synthesizing unit 12 and the effector 13 are generally a tone synthesizing LSI and an effect DSP. Instead, the tone synthesizing and the effects are realized by software using a high-performance CPU. Also good. When the CPU has extremely high performance, the sound source device CPU and the karaoke device control CPU may be combined. That is, all or a part of the sequencer 11, the tone synthesis unit 12, the effector 13, the recording unit 21, the MP3 encoding unit 22, and the writing unit 23 in the configuration of FIG. 1 can be configured by a CPU.
[0026]
Note that the compression method of karaoke performance sound data is not limited to the MP3 method. For example, it is possible to use a method defined in various MPEG specifications such as TwinVQ.
[0027]
The MP3 encoding unit 22 can compress the karaoke performance sound and embed various code information in the data. The code information to be embedded includes reproduction restriction information, song name information, song number information, lyrics information, guide melody information, and the like. Such information can be used in various ways in a portable karaoke apparatus. As described above, these pieces of information are all included in the music data for generating this karaoke performance sound, and may be extracted from the music data and embedded. Note that it is not necessary to embed all of the above information, and only a necessary part may be used.
[0028]
FIG. 2 is a block diagram of the portable karaoke apparatus 2 possessed by the individual user and connected to the stationary karaoke apparatus. This portable karaoke apparatus has a shape similar to a headphone stereo, and can sing karaoke using a headphone 35 and a neck microphone 36 connected to a jack of the main body.
[0029]
A reading unit 30 is connected to the writing unit 23 of the stationary karaoke apparatus 1. An MP3 data memory 31 is connected to the reading unit 30. The reading unit 30 writes MP3 data input from the stationary karaoke apparatus 1 in the MP3 data memory 31. The MP3 data memory 31 is composed of SRAM or EEPROM, and the stored contents are held even when the power is off. The MP3 data memory 31 has a capacity for storing a plurality of MP3-encoded karaoke songs (karaoke performance sounds). Each MP3 data includes information such as song number information and song name information in addition to the compressed karaoke performance sound, and the user selects a song to be reproduced based on such information. The selector 38 has an operation element for inputting the identification information, and the user can select a music piece to be reproduced by using the operation element. The music selection information by the selector 38 is transmitted to the decoder 32. The decoder 32 sequentially reads out the MP3 data of the selected karaoke song from the MP3 data memory 31, decodes this data, and converts it into an analog audio signal. The karaoke performance sound converted into the analog signal is output to the stereo headphones 35 via the mixer 33-amplifier 34.
[0030]
The user sings toward the neck microphone 36 while listening to the karaoke performance sound output from the headphones 35. This singing voice is input to the mixer 33 after the effect is given by the effector 37. The mixer 33 mixes the karaoke performance sound and the singing voice and inputs them to the amplifier 34.
[0031]
As described above, in this embodiment, the performance sound of the karaoke song performed by the stationary karaoke apparatus is compressed into MP3 data, written to the portable karaoke apparatus, and reproduced by the portable karaoke apparatus. Karaoke performance sound using the high-quality sound source device can be reproduced by the portable karaoke device.
[0032]
Since the MP3 data memory 31 and the decoder 32 are much smaller and consume less power than the sound source LSI and the effector DSP, the portable karaoke apparatus can be reduced in size and weight.
[0033]
It should be noted that the reproduction restriction information such as the reproduction time limit and the number of reproductions is written in the MP3 data, the number of reproductions in the portable karaoke device is counted, and the MP3 data is erased when the reproduction is performed up to a predetermined number of times. By erasing this MP3 data when a predetermined period has elapsed after being loaded into the karaoke apparatus, unlimited reproduction can be restricted and copyright can be protected. In the portable karaoke apparatus 2, the MP3 data memory 31 cannot be read out to the outside as it is, so that the MP3 data is not stolen.
[0034]
Further, the stationary karaoke device 1 checks whether the device connected to the writing unit 23 is a regular portable karaoke device, and writes MP3 data only when it is determined that the device is a regular portable karaoke device. I am doing so. Thereby, illegal reading of MP3 data can be prevented. It can be determined whether the mobile karaoke device is a legitimate portable karaoke device by storing an ID code on the portable karaoke device 2 side and reading and checking the ID code by the stationary karaoke device 1.
[0035]
The portable karaoke apparatus in the above embodiment is only an apparatus for reproducing and singing a karaoke performance sound, but by adding a game function, an apparatus that can be used more happily and variously can be realized. Embodiment shown below has shown the karaoke system containing the portable karaoke apparatus which added the game function.
[0036]
The portable karaoke apparatus of this portable karaoke system has a game function in addition to the karaoke performance sound reproduction function of the portable karaoke apparatus of the first embodiment. The game functions that can be executed include a scoring game for scoring karaoke songs, a breeding game for raising characters, and an English conversation learning game. The scoring game and the English conversation learning game are linked to the breeding game, and the degree of growth of the character is controlled by the number and points of execution of the scoring game and the number of executions and points of the English conversation game. Each game program is downloaded from the stationary karaoke apparatus 1. Then, when the portable karaoke device is connected to the stationary karaoke device at the next opportunity, game results and the like are sucked into the stationary karaoke device as a log. The stationary karaoke apparatus that has taken up the log uploads this log to the distribution center, so that the distribution center can manage the usage status of the mobile terminal device in an integrated manner.
[0037]
FIG. 3 is a block diagram of a stationary karaoke apparatus of the portable karaoke system. In this figure, the same components as those of the stationary karaoke apparatus shown in FIG. The karaoke apparatus includes a log memory 25 and a game memory 26 in addition to the music data memory 10. These music data memory 10, log memory 25 and game memory 26 may be constituted by a single hard disk. The log memory 25 stores a performance history of each karaoke song in the karaoke device, a performance history of each karaoke song in the connected portable karaoke device, and the like. The game memory 26 stores character data for various game programs and breeding games. This game program and character data are not to be executed by this karaoke device but to be loaded into a portable karaoke device.
[0038]
This stationary karaoke apparatus has a communication means (not shown) and has a function of communicating with a distribution center to download music data and game programs, and upload log data.
[0039]
When the user requests a karaoke song, the karaoke device reads the song data of the song from the song data memory 10 and executes the karaoke song. At this time, log data indicating that the song has been played once is written in the log memory 25. At this time, if the portable karaoke device 2 is connected to the writing / reading unit 27, the performance sound of the karaoke song is converted into MP3 data and written to the portable karaoke device 2. In the MP3 data, reproduction restriction information, song name information, song number information, lyrics information, guide melody information, and the like are written together with the karaoke performance sound. These pieces of information are separated and extracted from the music data of this music stored in the music data memory 10. Then, the character data is written in the portable karaoke apparatus 2 in association with the MP3 data. This character data may be written individually corresponding to each karaoke song, or one character data may be written for one use of the stationary karaoke apparatus.
[0040]
A user removes the portable karaoke apparatus 2 from the stationary karaoke apparatus 1 and performs karaoke performance and games. When the portable karaoke device 2 is connected to the writing / reading unit 27 of the stationary karaoke device 1 at the next opportunity, the writing / reading unit 27 performs a karaoke song performance or game result from the portable karaoke device 2. Log data is read and written to the log memory 25. Log data stored in the log memory 25 is transmitted to the distribution center when communicating with the distribution center.
[0041]
4 is an external view of a portable karaoke apparatus connected to the stationary karaoke apparatus, and FIG. 5 is a block diagram of the portable karaoke apparatus. In the block diagram of FIG. 5, the same components as those in the portable karaoke apparatus shown in FIG. As shown in FIG. 4A, this portable karaoke apparatus has a shape similar to a portable game machine, and includes a liquid crystal display 50 and a controller 51 on the case surface. The controller 51 includes a movement switch 51a and a shoot button 51b. The movement switch 51a is a key switch for moving the cursor and character displayed on the display 50 up, down, left and right. The shoot button 51b is a button switch for shooting a bullet during a game or selecting a menu pointed to by the cursor on the menu screen.
[0042]
A connector 52 for connecting to the stationary karaoke apparatus 1 is provided on the upper surface of the case. The connector 52 includes a female connector 52a and a male connector 52b. The female connector 52 a is a connector for transmitting data to the stationary karaoke apparatus 1, and the male connector 52 b is a connector for receiving data from the stationary karaoke apparatus 1. In addition, jacks 53 and 54 for connecting the headphones 35 and the neck microphone 36 are provided on the bottom surface of the case.
[0043]
FIG. 5B shows a display example of the menu screen on the display 50. Moreover, the display 50 in the external view of the same figure (A) has shown the example of a display of the advice screen at the time of a scoring game. In FIG. 5B, a downloaded character is displayed at the center of the screen. Menus for mode selection such as karaoke, state, meal, game, character, clock, etc. are displayed at the top and bottom of the screen, and the cursor is currently moved to the meal position. When the shoot button 51b is turned on in this state, a meal can be given to the currently displayed character.
[0044]
Further, when the cursor is moved to the karaoke position and the shoot button 51b is turned on, the karaoke mode is set and the song selection screen is displayed. When the user selects a song using the controller 51, the song is played. A scoring game is automatically executed when a karaoke song is played. The scoring game is a game in which a score is calculated based on how much the singing voice input from the microphone 36 matches the karaoke performance sound, and also has a function of displaying an advice screen as shown in FIG. Have. In this scoring game, the decoded karaoke performance sound may be used as it is, or guide melody data stored together may be used. When the scoring game ends, the degree of character growth is controlled by the score.
[0045]
When the cursor is moved to the game position and the shoot button 51b is turned on, the game mode is set and an English conversation game as shown in FIG. 7 is executed. In this English conversation game, when a user inputs an answer voice from the microphone 36 to an English conversation problem displayed on the display 50, the voice recognition unit 44 recognizes the voice, and based on the recognition result, the answer is answered. Correctness is judged and a screen corresponding to this is displayed on the display 50. The game is not limited to this English conversation game. When the English conversation game ends, the degree of character growth is controlled by the score. In this game, as shown in the figure, when an answer is input by voice to a displayed English conversation question, a display and a sound corresponding to the correctness of the answer are output.
[0046]
When the cursor is moved to the character position and the shoot button 51b is turned on, the current character state is displayed. When a plurality of characters are recorded from the stationary karaoke apparatus, the characters to be displayed are switched sequentially. When the cursor is moved to the state position and the shoot button 51b is turned on, the state of the currently displayed character is displayed. The character status refers to the degree of growth that indicates how large the character is, the degree of familiarity that indicates how familiar the character is to the user, the degree of satisfaction that indicates how well the character feels, and the stress of the character For example, the degree of stress indicating the degree. When the cursor is moved to the clock position and the shoot button 51b is turned on, the current time is displayed on the display 50.
[0047]
In FIG. 5, in addition to the MP3 data memory 31, a log memory 41 and a game memory 42 are connected to the connection unit 30. The log memory 41 is a memory for storing the performance of karaoke music, that is, the reproduction history of karaoke performance sounds and the progress of the game in the portable karaoke apparatus. The game memory 42 is a memory for storing game programs and character data. The game program and character data are downloaded from the stationary karaoke apparatus 1 via the connection unit 30. The selector 38 includes the controller 51 and transmits a mode selection operation and a music selection operation to the control unit 40. The control unit 40 is constituted by a microcomputer, executes an operation according to the operation of the selector 38 and executes a game program read from the game memory 42. The display unit 43 includes the display 50.
[0048]
The singing voice input from the microphone 36 is also input to the voice recognition unit 44. The voice recognition unit 44 has a function of detecting a pitch of a singing voice and a pronunciation pattern of English conversation. The detection content is input to the control unit 40.
[0049]
Since the lyrics information is embedded in the MP3 data as described above, the decoder 32 simultaneously decodes the lyrics data and inputs it to the control unit 40 when decoding the karaoke performance sound. The control unit 40 expands the lyrics data into a character pattern and displays it on the display unit 43. If the guide melody data is embedded in the MP3 data, the decoder 32 simultaneously reads the guide melody data at this time. This guide melody data can be used for scoring and generating a guide melody.
[0050]
FIG. 6 is a diagram showing data loaded from the stationary karaoke apparatus 1 to the portable karaoke apparatus 2. MP3 data, character data, game program (quiz data), etc. are loaded from the stationary karaoke device 1 to the portable karaoke device 2. The MP3 data includes reproduction restriction information, song name information, song number information, lyrics information, and guide melody information together with compressed karaoke performance sound data. The character data includes a plurality of graphic data indicating various facial expressions and the degree of growth of the character, voice output data, condition data such as growth, and the like. Only one type of character data or game program (quiz data) may be loaded, or a plurality of character data or game programs (quiz data) may be loaded corresponding to each MP3 data.
[0051]
In this example, the character data is downloaded from the stationary karaoke device to the portable karaoke device, but a plurality of character data is stored in advance in the portable karaoke device, and depending on the music to be written. One or more may be selected.
[0052]
FIG. 8 is a flowchart showing the operation of the portable karaoke apparatus. First, a menu screen is displayed (s1). It is determined in s2, s3, and s4 whether the user operates the controller 51 to select a karaoke, game, or character-related mode.
[0053]
When the karaoke mode is selected (s2), a list of MP3 data stored in the MP3 data memory 31 is displayed (s10). This list is a list of song names and song numbers. When the user selects a karaoke song to be reproduced from among them (s11), the MP3 data of the song is sequentially read and decoded to reproduce the performance sound, and the lyrics are displayed (s12). In parallel with this, since the singing voice is input from the microphone 36, the pitch of the singing voice is taken from the voice recognition unit 44, and a scoring operation is performed to determine whether the pitch matches the pitch of the guide melody. (S14). An advice screen is displayed according to the contents of the scoring (s15). When the karaoke performance is completed, the character growth degree and the like are controlled based on the final scoring result (s16).
[0054]
On the other hand, when the game mode is selected on the menu screen (s3), the game program stored in the game memory 42 is executed (s20). When the game is over, the game score is calculated (s21), and the character is controlled based on the score (s22). The character control based on the scoring result of the scoring game and the character control based on the score of the game may be performed while displaying the character on the display 50, or only the data may be updated without displaying the character. . Even when the character is not displayed, when the character is displayed at the next opportunity, since the character whose degree of growth is updated is displayed, there is no change in the display control. It is included in “controlling display”. When a character-related mode (character, state, meal) is selected, a corresponding process is executed (s23).
[0055]
In the above flowchart, the character is controlled based on the scoring result and the score. However, the character may be controlled based on the number of singings and the number of games.
[0056]
2 and 4 block the functions of the portable karaoke apparatus. When this is configured by a computer system, the configuration is as shown in FIG. In this case, the decoder 32 is realized by software as a function of the CPU.
[0057]
In the portable karaoke apparatus of the above embodiment, the user sings with the neck microphone 36 while listening to the reproduced sound with the headphones 35, but the headphone jack 53 is connected to the radio cassette or stereo and the karaoke performance is performed with the speaker. It is also possible to sing with the microphone connected to the radio cassette or stereo while playing the sound. That is, a portable karaoke apparatus can be used as an audio medium, and karaoke performance sounds can be reproduced by another audio apparatus. Even in this case, the copyright of the song can be protected by outputting only the karaoke performance sound converted into the analog signal to the outside without outputting the MP3 data to the outside.
[0058]
It is also possible to synthesize a guide melody using guide melody data embedded in the MP3 data and make it sound. That is, the karaoke performance sound is MP3 encoded and stored, but in the case of karaoke without any guide melody, it may be difficult to sing. In such a case, only the guide melody may be synthesized on the portable karaoke apparatus side so that it can be output together with the karaoke performance sound or only the guide melody. That is, by switching, it is only necessary to be able to output three kinds of voices of only karaoke performance sound, karaoke performance sound + guide melody, and guide melody only. In this case, since the guide melody does not need to consider so much sound quality, it may be an extremely simple cheap sound source with a tone number of one or one tone, or may be synthesized by software in the control unit, which increases the size of the device. Will not lead to.
[0059]
Note that the game executed on the portable karaoke device is not limited to the scoring game, the English conversation game, and the breeding game.
[0060]
【The invention's effect】
As described above, according to the present invention, by compressing the karaoke performance sound synthesized by the stationary karaoke apparatus and writing it to the portable karaoke apparatus, the portable karaoke apparatus has a sound quality equivalent to that of the stationary karaoke apparatus. Can be played. Furthermore, since the portable karaoke apparatus only needs to expand the compressed karaoke performance sound and convert it into an audio signal, the power consumption is low and the size can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram of a stationary karaoke apparatus of a karaoke system according to a first embodiment of the present invention.
FIG. 2 is a block diagram of a portable karaoke apparatus of the karaoke system.
FIG. 3 is a block diagram of a stationary karaoke apparatus of the karaoke system according to the second embodiment.
FIG. 4 is an external view of a portable karaoke apparatus of the karaoke system according to the second embodiment.
FIG. 5 is a block diagram of the portable karaoke apparatus.
FIG. 6 is a configuration diagram of MP3 data stored in the portable karaoke apparatus.
FIG. 7 is a diagram showing an example of a game executed by the portable karaoke apparatus
FIG. 8 is a flowchart showing the operation of the portable karaoke apparatus.
FIG. 9 is a block diagram when the portable karaoke apparatus is configured by a computer system.
[Explanation of symbols]
1 ... Stationary karaoke device, 2 ... Mobile karaoke device,
DESCRIPTION OF SYMBOLS 10 ... Music data memory, 12 ... Musical sound synthesis part, 13 ... Effector, 21 ... Recording part, 22 ... MP3 encoding part, 23 ... Writing part,
31 ... MP3 memory, 32 ... decoder

Claims (3)

A portable karaoke apparatus comprising: storage means for storing compressed music data including compressed karaoke performance sounds; and playback means for decompressing the compressed music data read from the storage means to output karaoke performance sounds.
A music data storage means for storing music data for synthesizing a karaoke performance sounds, playing the digital recording as well as audio output musical tone synthesizing means for synthesizing the karaoke performance sounds, the synthesized karaoke performance sound based on the music data a sound memory output means, and compression means for generating said digital recording compressed music data by compressing the karaoke performance sounds were, the portable karaoke device is capable and away, the compressed music data storing means of said portable karaoke device A stationary karaoke device comprising a writing means for writing to
Tona is,
If the portable karaoke device is connected to the writing means, the compression means of the stationary karaoke device generates the compressed music data and erases the digitally recorded karaoke performance sound,
Writing means of the stationary karaoke apparatus, the if the portable karaoke device are plugged in, the portable Karaoke you and writes the compressed music data, wherein the compression means is generated in the storage means of the portable karaoke device system. The compression means generates data in which the karaoke performance sound is compressed, and includes compressed music data in which reproduction restriction information, music title information, music number information, lyrics information, and guide melody information are all or partially embedded in this data. The portable karaoke system according to claim 1, which is a means for generating. The portable karaoke system according to claim 1 or 2, wherein the portable karaoke apparatus includes means for restricting the number of reproductions or the reproduction period based on the reproduction restriction information.

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