CN2248371Y

CN2248371Y - Multi-function electronic music instrument

Info

Publication number: CN2248371Y
Application number: CN 95216113
Authority: CN
Inventors: 史耀华; 董小明; 葛龙龙
Original assignee: 史耀华
Priority date: 1995-06-22
Filing date: 1995-06-22
Publication date: 1997-02-26
Anticipated expiration: 2005-06-22

Abstract

The utility model discloses a multi-function electronic music instrument, which is additionally provided with a C microprocessor or a Y microprocessor, makes use of the MIDI interface of the original microprocessor or an M microprocessor. The multi-function electronic music instrument reserves the original various music functions, or is conveniently connected with a TV to realize the character display and the image display which are used for the Karaoke with synchronous lyric and song, the music teaching, etc. The utility model monitors and record the person's playing which is contrasted with multiple items of standards in the music course to display the evaluation and the training prompt, or the utility model is singly used as a music player. The utility model open up a new purpose of the electronic musical instrument.

Description

The multifunction electronic musical instrument

The utility model relates to electric oscillation electron-like musical instrument, especially relate to a kind of mainly by microcontroller circuit, be subjected to electronic piano sound source circuit or the pianotron sounding circuit or the electronic music compositor pronunciation circuit of microcontroller circuit control, voicefrequency circuit, loudspeaker, formation and microprocessor wherein such as piano key board and gauge tap circuit has MIDI function electronic musical instrument.

The electronic musical instrument that said structure is all arranged in some mellotrons in the commercially available brands such as Yamaha, pianotron, the electronic music compositor.Though existing No. 95200929.3 applications, 95203481.6 they relate separately to number application and the application on June 17th, 95 " a kind of multifunction electronic musical instrument " and can make electronic musical instrument have CRT to show and the cassette player function, monitoring and the play state of recorder to electronic musical instrument, the comparative evaluation is used for the function of music self training teaching, but they all do not utilize MIDI (the MusicalInstrument Digital Interface) function of microprocessor in the electronic musical instrument, then can get more and more with the electronic musical instrument of this function.

The utility model purpose provides a kind of multifunction electronic musical instrument, it utilizes the MIDI function of microprocessor in the electronic musical instrument, both kept the original repertoire of electronic musical instrument, can or emit tens first melody and interchangeable songs (being equivalent to music player) again to thousands of head, perhaps lean on the CRT Presentation Function of self, can join with CRT such as televisors easily, display text and image, realize that the lyrics show and the synchronous Karaoke of accompaniment music duration, music score shows and the synchronous music teaching of music, perhaps can monitor and be recorded into melody in the situation of playing of electronic musical instrument and the music study course that deposits in the machine, musical alphabet, tone, tone color, speed, rhythm, duration, chord, posture, the evaluation of making comparisons of standards such as fingering, demonstrate the comparative evaluation result and play prompting, the study course requirement, the standard melody of perhaps emitting in the music study course is done the contrast training and makes an appraisal and play prompting for the player to show, be used for music self training teaching, or only depend on and self just can work as music player usefulness, opened up the new purposes of electronic musical instrument.

Can take multiple scheme to realize the utility model purpose, for the simple and direct of description and convenient, earlier the definition or the notion that occur in instructions and claims etc. are done some abbreviations: for microcontroller circuit of using in the original electronic musical instrument and interlock circuit thereof, be called for short former microprocessor below, come melody is carried out the coding abbreviation melody code of (satisfying requirements such as performance, teaching) with the order set of MIDI; CRT shows or the playback microprocessor for control, and the character library that comprises Karaoke character set, music score symbol, melody code storehouse and character show the Karaoke ci and qu storehouse with the control coding of music duration synchronous change, music song, spectrum storehouse or music study course storehouse and interlock circuit thereof, this itself is a mini system, is called for short the C microprocessor below; For the microprocessor that beyond former microprocessor and C microprocessor, re-uses and interlock circuit thereof and when need, set up as the circuit such as ci and qu storehouse, music study course storehouse, melody code storehouse of playing Karaoka, itself also is a mini system, is called for short the Y microprocessor below; The simple midi interface circuit that has for electronic musical instrument Central Plains microprocessor itself or have the complicated MIDI system of a MIDI microprocessor control in addition, no matter whether its midi interface is guided on the MIDI socket, the function of exporting from MIDI input and MIDI is seen and all be can be described as the midi interface circuit, and they are abbreviated as former microprocessor midi interface respectively, M microprocessor midi interface, to receive by midi interface MIDI instruction output monitor with the recorder according to screen display or the study course textbook on the melody code that occurs when playing of music study course, be called for short monitoring and record melody code below, to mainly by tri-state buffer circuit, ternary data latches, ternary data trigger, ternary transceiver circuit, the bus transceiver circuit, three direction buses transmitting-receiving control circuit, two input multipath conversion latchs, programmable I/O expanded circuit, the no latch function that serial port expanded circuit and other circuit are formed or the expansion I/O circuit of latch function is arranged is called for short the expansion I/O circuit below; Electronic piano sound source circuit or pianotron sounding circuit or electronic music compositor pronunciation circuit for being subjected to microcontroller circuit control are called for short sounding circuit below.

For reaching one of scheme that the utility model purpose takes be: mainly by former microprocessor, sounding circuit, voicefrequency circuit, loudspeaker, the microprocessor of formation such as key and control knob has in the electronic musical instrument of MIDI function, 1. set up the C microprocessor, former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the I mouth of C microprocessor, perhaps former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the C microprocessor through expansion I circuit, to accept the melody code of former microprocessor output, 2. the O mouth of C microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface, perhaps the C microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface through expansion O circuit, to transmit melody code to former microcontroller circuit, available MIDI speed or RS232 speed rates information between former microprocessor or M microprocessor and the C microprocessor, 3. the control end of above-mentioned expansion I/O circuit is all controlled by the C microprocessor, 4. the control signal of the multi-functional selector switch such as Karaoke of being responsible for the general function state of multifunction electronic musical instrument or increasing newly is given the C microprocessor and is detected, or use the selected songs button or which kind of duty key determines by the C processor, when being operated in Karaoke or state such as cassette player, the C microprocessor sends music with the input port that melody code is sent into MIDI, and the character code in ci and qu storehouses such as Karaoke in it self mini system delivered to access character pattern in the character library and show for CRT and use, come control character to show with the control coding with music duration synchronous change, perhaps only send into the MIDI input port with melody code sends music to the C microprocessor, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, C microprocessor monitors and record melody code, and and its mini system in the melody code standard of music study course make comparisons, music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is sent into the standard melody that the MIDI input port emits in the music study course with melody code and done the contrast training and make an appraisal and play prompting for the player to show.This programme is the simplest, but the work load of C microprocessor is heavier.

For reaching two of scheme that the utility model purpose takes be: mainly by former microprocessor, sounding circuit, voicefrequency circuit, loudspeaker, the microprocessor of formation such as key and control knob has in the multifunction electronic musical instrument of MIDI function, 1. set up C microprocessor and Y microprocessor, 2.C microprocessor and Y microprocessor link by I/O mouth or expansion I/O mouth can exchange message, 3. former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the I mouth of Y microprocessor, perhaps former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the Y microprocessor through expansion I circuit, to accept the melody code of former microprocessor output, 4. the O mouth of Y microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface, perhaps the Y microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface through expansion O circuit, to transmit melody code to former microcontroller circuit, available MIDI speed or RS232 speed rates information between former microprocessor or M microprocessor and the Y microprocessor, 5. the control end of above-mentioned expansion I/O circuit is all controlled by the Y microprocessor, 6. the control signal of the multi-functional selector switch such as Karaoke of being responsible for the general function state of multifunction electronic musical instrument or increasing newly gives the C microprocessor or the Y microprocessor detects, perhaps use the selected songs button or which kind of duty key determines by C microprocessor or Y microprocessor, when being operated in Karaoke or state such as cassette player, the Y microprocessor is sent into the MIDI input port with melody code and is sent music, and the C microprocessor is delivered to the character code in ci and qu storehouses such as Karaoke in it self mini system and is accessed character pattern in the character library and show for CRT and use, coming control character to show with music duration synchronous change or Y microprocessor with control coding waits Karaoke in it self mini system the character code in ci and qu storehouse and control code to send into the C microprocessor for CRT demonstration usefulness, perhaps only send into the MIDI input port with melody code sends music to the Y microprocessor, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, the Y microprocessor, monitoring and record melody code, and and C microprocessor or Y microprocessor in the melody code standard of music study course make comparisons, music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the Y microprocessor is sent into the standard melody that the MIDI input port emits in the music study course with melody code and done the contrast training and make an appraisal and play prompting for the player to show.Be operated in Karaoke or states such as cassette player and maybe can monitor the primary electron musical instrument and play when being used for music teaching, Y microprocessor and C microprocessor be exchange message at any time.This programme is lower to the burden of C microprocessor, but it is higher to increase Y microprocessor cost.

As multi-functional electronic musical instrument itself midi interface is set also, the use of midi interface all can have suitable isolation or buffering to amplify not influence the setting of MIDI socket in above-mentioned two kinds of schemes.

In order to change expansion ci and qu storehouse, the melody storehouse, or music study course storehouse, musical instrument of the present utility model also can add external some K byte ci and qu storehouse, or melody storehouse, or the ROM expanded circuit in music study course storehouse, this circuit is controlled by C microprocessor or Y microprocessor, and make the plug-in card form, and (on main frame) be furnished with a plug-in card socket, and with the corresponding qin shell of this socket position on open one can be for the hole of external ROM plug-in card, by changing the ci and qu storehouse, or the melody storehouse, or music study course plug-in card is once with regard to replaceable some first songs or music study course.

For the simple and direct cost of circuit is low, the C microprocessor adopts game machine 6527 class CPU, and the CRT display circuit can adopt the PPU6528 class chip of game machine, this chip periphery circuit is simple, only the VRAM of one 8 latch of need and adapted links, can be under the control of C microprocessor, and direct outputting video signal.

When making the utility model of only wanting player function not want the CRT Presentation Function: but to show usefulness with a few figure place sign indicating number display circuits for selected songs in addition, the C microprocessor is by interface and driving circuit control charactron demonstration song number.

Owing to taked above-mentioned measure, multifunction electronic musical instrument of the present utility model had both kept the original repertoire of electronic musical instrument, when the ordinary electronic musical instrument is used, or by itself just working as music player usefulness, or can be connected with CRT such as televisors easily, display text and image, realize that when pronunciation the lyrics show and the synchronous Karaoke of accompaniment music duration, music score shows and musical sound music teaching etc. synchronously, and can make it to have can monitor and the recorder to musical alphabet in the situation of playing of electronic musical instrument and the music study course that deposits in the machine, tone, tone color, speed, duration, the evaluation of making comparisons of standards such as chord, show the comparative evaluation result and play prompting and study course requirement, the standard melody that also can emit in the music study course is done the contrast training and makes an appraisal and play prompting for the player to show, learn by oneself training teaching to be used for music better, opened up the new purposes of electronic musical instrument.

Fig. 1 is the circuit diagram of first embodiment of the utility model.

Fig. 2 is the circuit diagram of second embodiment of the utility model.

As shown in Figure 1, present embodiment is to the improved multifunction electronic qin of Casio CT670, single-chip microcomputer in the C microprocessor of setting up 2 is with 8031, its P3.1 mouth is coupled to the MIN (the 18th pin) of former microprocessor 1 chip UPD937G to former microprocessor 1 input MIDI data, its P3.0 mouth is coupled to the MOUT (the 17th pin) of former microprocessor 1 chip UPD937G to receive the MIDI data of former microprocessor 1 output, the P3.5 that the control signal of responsible multifunction electronic musical instrument general function state of setting up or the multi-functional selector switch 3 such as Karaoke that increase newly is given C microprocessor 2 detects, the Karaoke ci and qu storehouse of setting up, the ROM that the 32K byte is arranged on the music study course storehouse expansion card 4, first song surplus storing ten, its data, the address, control line hangs on the bus of C microprocessor 2, it is inserted on the interior socket of machine, with the qin shell of this socket opposite position on have a hole that plug-in card is passed through, to be convenient for changing.When being operated in Karaoke or state such as cassette player, the C microprocessor is sent into the MIDI input port with melody code and is sent music, and the character code in ci and qu storehouses such as Karaoke in it self mini system delivered to access character pattern in the character library and show for CRT and use, come control character to show with the control coding with music duration synchronous change, perhaps only send into the MIDI input port with melody code sends music to the C microprocessor, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, C microprocessor monitors and record melody code, and and its mini system in the melody code standard of music study course make comparisons, music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is sent into the MIDI input port with the melody code in the music study course and emitted standard melody in the music study course and do the contrast training for the player and make an appraisal and play the prompting demonstration.

As shown in Figure 2, present embodiment is to the improved multifunction electronic qin of Casio CT670, Y microprocessor 2 usefulness 8751 of setting up, its P3.1 mouth is coupled to the MIN (the 18th pin) of former microprocessor 1 chip UPD937G to former microprocessor 1 input MIDI data, its P3.0 mouth is coupled to the MOUT (the 17th pin) of former microprocessor 1 chip UPD937G to receive the MIDI data of former microprocessor 1 output, its P1.0～P1.7 is coupled to the P1.0～P1.7 of the C microprocessor of setting up 3 (8031 single-chip microcomputer), the P3.2 mouth of Y microprocessor 2 and the P3.3 mouth of C microprocessor link, the P3.3 mouth of Y microprocessor 2 and the P3.2 mouth of C microprocessor link, to guarantee Y microprocessor and C microprocessor exchange message, the P3.5 that the control signal of the general function state of the responsible multifunction electronic musical instrument of setting up or the multi-functional selector switch 4 such as Karaoke that increase newly is given Y microprocessor 2 detects, the Karaoke ci and qu storehouse of setting up, the ROM that the 32K byte is arranged on the music study course storehouse expansion card 5, first song surplus storing ten, its data, the address, control line hangs on the bus of C microprocessor 3, it is inserted on the interior socket of machine, with the qin shell of this socket opposite position on have a hole that plug-in card is passed through, to be convenient for changing.When being operated in Karaoke or state such as cassette player, the Y microprocessor sends music with the input port that melody code is sent into MIDI, and the C microprocessor is delivered to the character code in ci and qu storehouses such as Karaoke in it self mini system and is accessed character pattern in the character library and show for CRT and use, come control character to show with the control coding with music duration synchronous change, perhaps the Y microprocessor only sends music to the input port that melody code is sent into MIDI, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, the Y microprocessor, monitoring and record melody code, and and the C microprocessor in the melody code standard of music study course make comparisons, music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the Y microprocessor is sent into the standard melody that the input port of MIDI emits in the music study course to the melody code in the music study course and done the contrast training and make an appraisal and play prompting for the player to show.Be operated in Karaoke or states such as cassette player and maybe can monitor the primary electron musical instrument and play when being used for music teaching, Y microprocessor and C microprocessor be exchange message at any time.

The foregoing description all illustrates for electronic musical instruments such as the pianotron that the analogous circuit structure is arranged, electronic music compositors, because of adopting identical improvement design, though specifically improve circuit difference can be arranged with mellotron, its invention effect is the same.

Claims

1. one kind mainly by former microprocessor, sounding circuit, voicefrequency circuit, loudspeaker, the microprocessor of formation such as key and control knob has the multifunction electronic musical instrument of MIDI function, it is characterized in that: 1. set up the C microprocessor, former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the I mouth of C microprocessor, perhaps former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the C microprocessor through expansion I circuit, to accept the melody code of former microprocessor output, 2. the O mouth of C microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface, perhaps the C microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface through expansion O circuit, to transmit melody code to former microcontroller circuit, 3. the control end of above-mentioned expansion I/O circuit is all controlled by the C microprocessor, 4. the control signal of the multi-functional selector switch such as Karaoke of being responsible for the general function state of multifunction electronic musical instrument or increasing newly is given the C microprocessor and is detected, or use the selected songs button or which kind of duty key determines by the C processor, when being operated in Karaoke or state such as cassette player, the C microprocessor sends music with the input port that melody code is sent into MIDI, and the character code in ci and qu storehouses such as Karaoke in it self mini system delivered to access character pattern in the character library and show for CRT and use, come control character to show with the control coding with music duration synchronous change, perhaps the C microprocessor only sends music with the input port that melody code is sent into MIDI, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, the C microprocessor, monitoring and record melody code, and and its mini system in the melody code standard of music study course make comparisons, music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is sent into the MIDI input port with the melody code in the music study course and emitted standard melody in the music study course and do the contrast training for the player and make an appraisal and play the prompting demonstration.

2. one kind mainly by former microprocessor, sounding circuit, voicefrequency circuit, loudspeaker, the microprocessor of formation such as key and control knob has the multifunction electronic musical instrument of MIDI function, it is characterized in that: 1. set up C microprocessor and Y microprocessor, 2.C microprocessor and Y microprocessor link by I/O mouth or expansion I/O mouth can exchange message, 3. former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the I mouth of Y microprocessor, perhaps former microprocessor MIDI output interface or M microprocessor MIDI output interface are coupled to the Y microprocessor through expansion I circuit, to accept the melody code of former microprocessor output, 4. the O mouth of Y microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface, perhaps the Y microprocessor is coupled to former microprocessor MIDI input interface or M microprocessor MIDI input interface through expansion O circuit, to transmit melody code to former microcontroller circuit, 5. the control end of above-mentioned expansion I/O circuit is all controlled by the Y microprocessor, 6. the control signal of the multi-functional selector switch such as Karaoke of being responsible for the general function state of multifunction electronic musical instrument or increasing newly gives the C microprocessor or the Y microprocessor detects, perhaps use the selected songs button or which kind of duty key determines by C microprocessor or Y microprocessor, when being operated in Karaoke or state such as cassette player, the Y microprocessor sends music with the input port that melody code is sent into MIDI, and the C microprocessor is delivered to the character code in ci and qu storehouses such as Karaoke in it self mini system and is accessed character pattern in the character library and show for CRT and use, coming control character to show with music duration synchronous change or Y microprocessor with control coding waits Karaoke in it self mini system the character code in ci and qu storehouse and control code to send into the C microprocessor for CRT demonstration usefulness, perhaps the Y microprocessor only sends music with the input port that melody code is sent into MIDI, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, the Y microprocessor, monitoring and record melody code, and and C microprocessor or Y microprocessor in the melody code standard of music study course make comparisons, music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, also the Y microprocessor is sent into the MIDI input port with the melody code in the music study course and is emitted standard melody in the music study course and do the contrast training for the player and make an appraisal and play the prompting demonstration, be operated in Karaoke or states such as cassette player and maybe can monitor the primary electron musical instrument and play when being used for music teaching, Y microprocessor and C microprocessor be exchange message at any time.

3. it is characterized in that according to claim 1 or the described multifunction electronic musical instrument of claim 2: the C microprocessor of setting up is 6527 class CPU and 6528 class PPU and other interlock circuit with Nintendo's class game machine.

4. it is characterized in that according to claim 1 or the described multifunction electronic musical instrument of claim 2: external some K byte ci and qu storehouse is arranged, or melody storehouse, or the ROM expanded circuit in music study course storehouse, this circuit is controlled by C microprocessor or Y microprocessor, and make the plug-in card form, and on main frame, is furnished with a plug-in card socket, and with the corresponding qin shell of this socket position on open one can be for the hole of external ROM plug-in card, by changing the ci and qu storehouse, or the melody storehouse, or music study course plug-in card is once with regard to replaceable some songs or music study course.