CN2248370Y - Multi-function electronic music instrument - Google Patents

Abstract

The utility model discloses a multifunctional electronic music instrument. Without changing the program of the original musical instrument, the utility model is additionally provided with a C microprocessor or a Y microprocessor, a converting circuit, a control switch, a CRT display circuit, a Chinese-foreign language character library, a Karaoke lyric and song storehouse, a music course storehouse, etc. The utility model reserves various original music functions. The utility model is conveniently connected with a TV to realize character display and image display which are used in Karaoke with synchronous lyric and song, in music teaching, etc. The utility model monitors and records a person's playing which is contrasted with multiple items of standards in the music course to display evaluation and exercise indication, 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

A kind of multifunction electronic musical instrument

The utility model relates to electric oscillation electron-like musical instrument, especially relate to a kind of mainly by microprocessor circuit, be subjected to electronic piano sound source circuit or the pianotron sounding circuit or the electronic music compositor pronunciation circuit of microprocessor circuit control, audio frequency. circuit, loudspeaker, the electronic musical instrument that piano key board and gauge tap circuit etc. constitute.

The electronic musical instrument that all has said structure in some mellotrons in the commercially available brands such as Yamaha, pianotron, the electronic music compositor.These electronic musical instrument scale standards, have a beautiful tone, tone color and rhythm are full of flourishes, the chord function is strong, musical expression is abundant, and the demonstration song is arranged or store one section function of playing melody, but their these demonstration songs are few, and they self all do not have the CRT Presentation Function, can not be directly be connected with CRT such as televisor, show lyrics music score and image, to make full use of the music function that they enrich itself, realize that the lyrics show and the synchronous Karaoke of music, music score shows and the synchronous music teaching function of music, can not put melody in a large number and can not change the song of putting.Though it is effective entirely that existing No. 95200929.3 applications relate to the electronic musical instrument hardware cost low-function with CRT Presentation Function, but need to change the program of electronic musical instrument itself, increased the difficulty of software development, though the program that also has No. 95203481.6 applications need not change primary electron musical instrument itself, also can make it to have CRT shows and the cassette player function, but it can not monitor the state of playing to electronic musical instrument with the recorder, and the comparative evaluation is to be used for music self training teaching better.

The utility model purpose provides a kind of multifunction electronic musical instrument, it does not change the program of primary electron musical instrument itself, 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 with the recorder to 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, to be used for music self training teaching better, 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, for the sounding circuit that is subjected to this microprocessor circuit control, as in mellotron or pianotron, having one or an above sound source chip etc. to constitute sounding circuit, in the electronic music compositor, can form pronunciation circuit by multiple circuit such as digital controlled oscillator envelop generators, following abbreviation sounding circuit, has plenty of individual packages in these sources of sound, though what have is not individual packages, but its address date control bus can be drawn and is subjected to other microprocessor control, everyly can accept other microprocessor control, be called for short independent sounding circuit below, everyly can only accept the control of former microprocessor and can not accept other microprocessor control, be called for short non-independent sounding circuit below, CRT shows or the playback microprocessor for control, and comprise the Karaoke character set, the character library of music score symbol, make the coding of the lyrics with the code of character library, make the coding of melody with sounding circuit control coding, and character shows the Karaoke ci and qu storehouse with the control coding of music duration synchronous change, the 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 and the interlock circuit thereof that beyond former microprocessor and C microprocessor, re-use, be called for short the Y microprocessor below; The coding that is called for short melody below the coding that melody is carried out is arranged with the code of microprocessor control sounding circuit; Code microprocessor control sounding circuit is called for short control routine below; The row, column scanning impulse of former microprocessor, be called for short the keyboard scan pulse below to keyboard and gauge tap; Melody converted to be equivalent to former microprocessor and give the scanning impulse of key assignments (and thinking that it has the relation of equivalence with the code of sounding circuit), be called for short the key assignments of melody below; To mainly importing the multipath conversion latchs by tri-state buffer circuit, ternary data latches, ternary data trigger, ternary transceiver circuit, bus transceiver circuit, three direction buses transmitting-receiving control circuit, two, programmable I/O expanded circuit, the no latch function that serial port development method 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.

For reaching the utility model purpose, one of scheme of taking at the electronic musical instrument of independent sounding circuit or non-independent sounding circuit is: mainly by former microprocessor, independent sounding circuit or non-independent sounding circuit, voicefrequency circuit, loudspeaker, in the electronic musical instrument that key and control knob etc. constitute, 1. set up the C microprocessor, the O mouth that is used for keyboard scan of former microprocessor be coupled to the C microprocessor itself the I mouth or the data line that is coupled to the C microprocessor through other expansion I/O circuit give (being assumed to be row) output signal of keyboard scan to detect former microprocessor, 3. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the I mouth of C microprocessor, perhaps be coupled to C microprocessor data line from the I mouth that is used for keyboard scan of former microprocessor with other expansion I/O circuit, detect (being assumed to be row) input signal of the keyboard scan of former microprocessor, and 3. both in conjunction with monitoring and record keyboard scan pulse to be used for music teaching, 4. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the O mouth of C microprocessor or be coupled to the I mouth that is used for keyboard scan of former microprocessor with the data line of C microprocessor through the expansion I/O circuit, send the I mouth that be used for keyboard scan of data to former microprocessor (being equivalent to the row input pulse), 2. come simulating keyboard to play with 4. both combinations to realize that the lyrics show and the synchronous Karaoke of accompaniment music duration, music score shows and the synchronous music teaching of music, the control end of above-mentioned expansion I/O circuit is given the control of C microprocessor, 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 ordinary electronic musical instrument state, the code of former microprocessor control sounding circuit is given sounding circuit and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor is sent into former microcontroller circuit (simulating keyboard is played) to the key assignments of melody to send 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 the C microprocessor is only sent into former microcontroller circuit (simulating keyboard is played) to the key assignments of melody to send music, 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 is from former little processing, former microprocessor was given the scanning impulse of keyboard when device monitoring and recorder played according to screen display or study course textbook, and and its mini system in music study course standard make comparisons, the music score that music teaching is used, 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 former microcontroller circuit (simulating keyboard is played) emits in the music study course to the key assignments of melody and done the contrast training and make an appraisal and play prompting for the player to show.This programme scope of application is the most extensive, but higher to the rate request of C microprocessor.

For reaching the utility model purpose, two of the scheme of taking at the electronic musical instrument of independent sounding circuit or non-independent sounding circuit is: mainly by former microprocessor, independent sounding circuit or non-independent sounding circuit, voicefrequency circuit, loudspeaker, in the electronic musical instrument that key and control knob etc. constitute, 1. set up C microprocessor and Y microprocessor, 2.C microprocessor and Y microprocessor energy exchange message (data etc.), the O mouth that is used for keyboard scan of former microprocessor be coupled to the Y microprocessor itself the I mouth or the data line that is coupled to the Y microprocessor through other expansion I/O circuit give (row) output signal of keyboard scan to detect former microprocessor, 4. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the I mouth of Y microprocessor, perhaps be coupled to Y microprocessor data line from the I mouth that is used for keyboard scan of former microprocessor with the expansion I/O circuit, detect former microprocessor and give (OK) input signal of keyboard scan, and 4. both in conjunction with monitoring and record keyboard scan pulse to be used for music teaching, 5. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the O mouth of Y microprocessor or be coupled to the I mouth that is used for keyboard scan of former microprocessor with the data line of Y microprocessor through the expansion I/O circuit, send the I mouth that be used for keyboard scan of data to former microprocessor (being equivalent to the row input pulse), 3. come simulating keyboard to play with 5. both combinations to realize that the lyrics show and the synchronous Karaoke of accompaniment music duration, music score shows and the synchronous music teaching of music, the control end of above-mentioned expansion I/O circuit is all controlled by the Y microprocessor, 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, also can use the selected songs button or which kind of duty key determines by C processor or Y microprocessor, when being operated in ordinary electronic musical instrument state, former microprocessor is given sounding circuit the code of control sounding circuit and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor is sent into former microcontroller circuit (simulating keyboard is played) to the key assignments of melody to send music by the little processing of Y, 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 is only sent into former microcontroller circuit (simulating keyboard is played) to the key assignments of melody to send music by the little processing of Y, making cassette player uses, be operated in and detect the primary electron musical instrument and play when being used for music teaching, former microprocessor was given the scanning impulse of keyboard when the Y microprocessor was played according to screen display or study course textbook from former microprocessor monitors and recorder, give C microprocessor, make comparisons by music study course standard in C microprocessor and its mini system, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, also the C microprocessor is sent into former microcontroller circuit (simulating keyboard is played) to the key assignments of melody to send music by the little processing of Y, and the standard melody of emitting in the music study course is done the contrast training and make an appraisal and play prompting for the player to show.This programme scope of application is also the most extensive, and the speed of C microprocessor is not had extra demand, but to increase Y microprocessor cost higher more.

For reaching the utility model purpose, three of the scheme of taking at the electronic musical instrument of independent sounding circuit is: mainly by former microprocessor, independent sounding circuit, voicefrequency circuit, loudspeaker, in the electronic musical instrument that key and control knob etc. constitute, 1. set up the C microprocessor, the former microprocessor data relevant (or address) bus with sounding circuit, control bus is coupled to (WR in the control line, CS can be coupled to through circuit such as OR-gate) the I mouth of C microprocessor, perhaps use the expansion I/O circuit from the former microprocessor data relevant (or address) bus with sounding circuit, control bus is coupled to data (or address) bus of C microprocessor, control bus, to accept the code of former micro processor controls sounding circuit, again the data of C microprocessor (or address) bus, control bus is coupled to data (or address) bus of sounding circuit, control bus is with the control sounding circuit, 2. the control end of above-mentioned expansion I/O circuit is all controlled by the C microprocessor, 3. 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 ordinary electronic musical instrument state, the C microprocessor is given sounding circuit the code of the control sounding circuit of the former microprocessor that receives and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor waits Karaoke in it self mini system the character code in ci and qu storehouse to deliver to access in the character library character pattern to show for CRT and uses, and control sounding circuit with the coding of melody and send music, come control character to show with the control coding with music duration synchronous change, perhaps only emit music with the coding control sounding circuit of melody, 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 recorder according to screen display or the study course textbook on the music study course when playing former microprocessor send sounding circuit to send music on the one hand for the code of sounding circuit, music study course standard is made comparisons in one side and its mini system, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is given sounding circuit with the coding of melody 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.This programme is suitable for independent sounding circuit, but also higher to the rate request of C microprocessor.

For reaching the utility model purpose, four of the scheme of taking at the electronic musical instrument of independent sounding circuit is: mainly by former microprocessor, independent sounding circuit, voicefrequency circuit, loudspeaker, in the electronic musical instrument that key and control knob etc. constitute, 1. set up C microprocessor and Y microprocessor, 2.C microprocessor and Y microprocessor energy exchange message (data etc.), 3. the I mouth of Y microprocessor directly is coupled to data (or address) bus of former microprocessor, control bus, perhaps use data (or address) bus of expansion I/O circuit from former microprocessor, control bus is coupled to Y microprocessor data (or address) bus, control bus, to accept the code of former micro processor controls sounding circuit, again the data of Y microprocessor (or address) bus, control bus is coupled to data (or address) bus of sounding circuit, control bus is with the control sounding circuit, the control end of above-mentioned expansion I/O circuit is all controlled by the Y microprocessor, 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, also can use the selected songs button or which kind of duty key determines by C processor or Y microprocessor, when being operated in ordinary electronic musical instrument state, the Y microprocessor is given sounding circuit the code of the control sounding circuit of the former microprocessor that receives and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor waits Karaoke in it self mini system the character code in ci and qu storehouse to deliver to access in the character library character pattern to show for CRT and uses, come control character to show with the control coding with music duration synchronous change, and control sounding circuit with the coding of melody by the Y microprocessor and send music, perhaps the C microprocessor is only emitted music with the coding of melody by Y microprocessor control sounding circuit, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, Y microprocessor monitors and recorder according to screen display or the study course textbook on the music study course when playing former microprocessor give C microprocessor for the code of sounding circuit, make comparisons by music study course standard in C microprocessor and its mini system, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is emitted standard melody in the music study course with the coding of melody by Y microprocessor control sounding circuit and done the contrast training for the player and make an appraisal and play the prompting demonstration.This programme is suitable for independent sounding circuit, and the speed of C microprocessor is not had extra demand, but also many increase Y microprocessor costs are higher.

For reaching the utility model purpose, five of the scheme of taking at the electronic musical instrument of independent sounding circuit is: mainly by former microprocessor, independent sounding circuit, the C microprocessor, change-over circuit, voicefrequency circuit, loudspeaker, in the electronic musical instrument that key and control knob etc. constitute, 1. the data of handlebar sounding circuit, address bus, control bus or give first group of change-over circuit of former microprocessor control, perhaps give second group of change-over circuit of C microprocessor control, second group of change-over circuit is that a road of the little processing direction of C conducting two-way admittance and past has latch function, 2. above-mentioned change-over circuit can be mainly be made up of circuit with ternary function or circuit with latch function, such as using tri-state buffer circuit, ternary transceiver circuit, the bus transceiver circuit, three direction buses transmitting-receiving control circuit, two input multipath conversion latchs, ternary latch, different connections such as ternary data trigger combine, 3. one side of first group of change-over circuit links with former microprocessor, another side and sounding circuit link, one side of second group of change-over circuit links with the C microprocessor, another side and sounding circuit link, 4. the conducting control end in first group of change-over circuit and the second group of change-over circuit, all give the control of C microprocessor, the logic relation of the conducting of two groups of change-over circuits is: during first group of change-over circuit conducting (former microprocessor control sounding circuit) in second group of change-over circuit one the tunnel through latch toward the unidirectional conducting of C microprocessor direction (reading the control routine that former microprocessor send toward sounding circuit), another road during first group of not conducting of change-over circuit in second group of change-over circuit is toward the unidirectional conducting of sounding circuit direction (the C microprocessor send control routine toward sounding circuit), 5. 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 the electronic musical instrument normal state, the C microprocessor is controlled first group of change-over circuit and is given former microprocessor control sounding circuit, and second group of change-over circuit is in three-state or the past unidirectional conducting state of C microprocessor direction, when being operated in CRT such as Karaoke demonstration or player function state, the C microprocessor is controlled second group of change-over circuit and is given the control of C microprocessor sounding circuit, and first group of change-over circuit is in three-state, C microprocessor or the character code in the ci and qu storehouses such as Karaoke delivered to access character pattern in the character library and show to use for CRT, and control sounding circuit with the coding of melody and send music, come control character to show with the control coding with music duration synchronous change, perhaps only emit music with the coding control sounding circuit of melody, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, when the C microprocessor makes first group of change-over circuit conducting (former microprocessor control sounding circuit) in second group of change-over circuit one the tunnel through latch toward the unidirectional conducting of C microprocessor direction (reading the control routine that former microprocessor send toward sounding circuit), former microprocessor made comparisons in the code of sounding circuit and its mini system music study course standard when C microprocessor monitors and recorder played according to screen display or study course textbook, and the music teaching music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, in the time of can also being the C microprocessor and make first group of change-over circuit conducting (former microprocessor control sounding circuit), one the tunnel through the past unidirectional conducting of C microprocessor direction of latch (reading the control routine that former microprocessor send toward sounding circuit) in second group of change-over circuit, former microprocessor made comparisons in the code of sounding circuit and its mini system music study course standard when C microprocessor monitors and recorder played according to screen display or study course textbook, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, the time and make first group of not conducting of change-over circuit, another road in second group of change-over circuit is toward the unidirectional conducting of sounding circuit direction (the C microprocessor send control routine toward sounding circuit), and the standard melody of emitting in the music study course is done the contrast training and make an appraisal and play prompting for the player to show.This programme is suitable for independent sounding circuit, but it does not promptly have extra demand to the speed of C microprocessor, need not to increase the Y microprocessor again, and cost is lower.

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 on the corresponding qin shell of number this socket position, 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, fully excavate the function of electronic musical instrument source of sound again, or only depend on and self just can work as music player and use, 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.

Fig. 3 is the circuit diagram of the 3rd embodiment of the utility model.

Fig. 4 is the circuit diagram of the 4th embodiment of the utility model.

Fig. 5 is the circuit diagram of the 5th embodiment of the utility model.

As shown in Figure 1, present embodiment is the multifunction electronic qin of one 49 key and 15 function keys, the single-chip microcomputer of using in the C microprocessor of setting up 3 is 8031, comprised its scanning delivery outlet 0～7 of being used to scan key and function key of sounding circuit is coupled to C microprocessor 3 by an eightfold three-state buffer 2 data bus in the former microprocessor 1, the control end G of eightfold three-state buffer 2 by the P2.6 of C microprocessor 3 and read signal mutually " or " control, being used to of former microprocessor 1, the scanning input port 0～7 of scanning key and function key was coupled to the P1.0～P1.7 of C microprocessor 3, the P3.5 mouth that the general function state of the responsible multifunction electronic musical instrument of setting up or the functional select switch 4 that increases newly are given C microprocessor 3 detects, external ci and qu storehouse, there is the ROM of 32K byte in music study course storehouse 5, first song content surplus disposable/replaceable expands ten, its address wire, data line, read-write control line all hangs on the bus of C microprocessor 3, there is a plug-in card socket in this external ci and qu storehouse, with the corresponding qin shell of this socket position on open the hole that can insert for external ci and qu storehouse plug-in card, to be convenient for changing.

As shown in Figure 2, present embodiment is the multifunction electronic qin of one 49 key and 15 function keys, the Y microprocessor of setting up 2 is single-chip microcomputers 8051, comprised P2.0～P2.7 mouth that its scanning delivery outlet 0～7 of being used to scan key and function key of sounding circuit is coupled to Y microprocessor 2 in the former microprocessor 1, being used to of former microprocessor 1, the scanning input port 0～7 of scanning key and function key was coupled to the P1.0～P1.7 mouth of Y microprocessor 2, the single-chip microcomputer of using in the C microprocessor of setting up 3 is 8031, link its P3.0 mouth and the P3.0 of Y microprocessor of the P3.1 of its P3.O and Y microprocessor links with exchange message, and the P3.5 mouth that the general function state of the responsible multifunction electronic musical instrument of setting up or the functional select switch 4 that increases newly are given Y microprocessor 2 detects.There is the ROM of 32K byte in external ci and qu storehouse, music study course storehouse 5, first song content surplus disposable/replaceable expands ten, its address wire, data line, read-write control line all hang on the bus of C microprocessor 3, there is a plug-in card socket in this external ci and qu storehouse, with the corresponding qin shell of this socket position on open the hole that can insert for external ci and qu storehouse plug-in card, to be convenient for changing.

As shown in Figure 3, present embodiment is the multifunction electronic qin of one 61 key and 35 function keys, it have one independently sounding circuit 3 its models are YM3812, former microprocessor 1 eight data lines relevant with sounding circuit are coupled to the P1.0～P1.7 of the C microprocessor of setting up 2, former microprocessor 1 that root control line relevant with sounding circuit OA is coupled to the P3.5 of C microprocessor 2, former microprocessor 1 and sounding circuit CS, those relevant two control lines of WR are coupled to the P3.2 of C microprocessor 2, to accept the code of former micro processor controls sounding circuit, again the data of C microprocessor 2 (or address) bus is coupled to data (or address) bus of sounding circuit 3, the P3.4 of C microprocessor 2 is coupled to the OA end of sounding circuit 3, the WR of C microprocessor 2 is coupled to the WR end of sounding circuit 3, the P2.7 of C microprocessor 2 is coupled to the CS end of sounding circuit 3, with the control sounding circuit, the P3.3 mouth that the general function state of the responsible multifunction electronic musical instrument of setting up or the functional select switch 4 that increases newly are given C microprocessor 2 detects.There is the ROM of 32K byte in external ci and qu storehouse, music study course storehouse 5, first song content surplus disposable/replaceable expands ten, its address wire, data line, read-write control line all hang on the bus of C microprocessor 2, there is a plug-in card socket in this external ci and qu storehouse, with the corresponding qin shell of this socket position on open the hole that can insert for external ci and qu storehouse plug-in card, to be convenient for changing.

As shown in Figure 4, present embodiment is the multifunction electronic qin of one 61 key and 35 function keys, it have one independently sounding circuit 3 its models are YM3812, former microprocessor 1 eight data lines relevant with sounding circuit are coupled to the P0.0～P0.7 of the Y microprocessor of setting up 2, former microprocessor 1 that root control line relevant with sounding circuit OA is coupled to the P3.5 of Y microprocessor 2, former microprocessor 1 and sounding circuit CS, those relevant two control lines of WR are coupled to the P3.3 of Y microprocessor 2 respectively, P3.2, to accept the code of former microprocessor control sounding circuit, again P1.0～the P1.7 of Y microprocessor 2 is coupled to data (or address) bus of sounding circuit 3, the P2.0 of Y microprocessor 2 is coupled to the OA end of sounding circuit 3, the P2.1 of Y microprocessor 2 is coupled to the WR end of sounding circuit 3, the P2.2 of Y microprocessor 2 is coupled to the CS end of sounding circuit 3, with the control sounding circuit, the serial port P3.0 of Y microprocessor 2 and P3.1 are coupled to the serial port P3.1 of C microprocessor 4 and P3.0 with exchange message.The P2.3 mouth that the general function state of the responsible multifunction electronic musical instrument of setting up or the functional select switch 5 that increases newly are given Y microprocessor 2 detects.There is the ROM of 32K byte in external ci and qu storehouse, music study course storehouse 6, first song content surplus disposable/replaceable expands ten, its address wire, data line, read-write control line all hang on the bus of C microprocessor 4, there is a plug-in card socket in this external ci and qu storehouse, with the corresponding qin shell of this socket position on open the hole that can insert for external ci and qu storehouse plug-in card, to be convenient for changing.

As shown in Figure 5, present embodiment is the multifunction electronic qin of one 61 key and 35 function keys, it have one independently sounding circuit 4 its models are YM3812, eight data lines that former microprocessor 1 is relevant with sounding circuit and three control lines, be coupled to the data bus and the OA of sounding circuit 4 via first group of change-over circuit 2 of 11 heavy three state circuits formations, WR, the CS control bus, the control end of this group change-over circuit is given the P39 pin of 6527CPU in the C microprocessor 5, four address wires of eight data lines of 6527CPU and A0～A3 and R/W in the C microprocessor 5, two control lines of RDY, be coupled to data line and the A0～A3 and the R/W of VIA chip 6522 in second group of change-over circuit 3 (following abbreviation 6522), two ends of CLK pin, the 1Y3 of the decoding scheme 139 in the C microprocessor 5 end is coupled in second group of change-over circuit 3 6522 CS1, in second group of change-over circuit 3 with the CS of one two OR-circuit from sounding circuit 4, the WR two ends are coupled to 6522 CA1 and CB1 end, PA0～PA7 of 6522 is coupled to the data bus of sounding circuit 4,6522 PB0, PB1, PB2 is coupled to the OA end of sounding circuit 4 respectively, the CS end, the WR end, the state of the general function state of the responsible multifunction electronic musical instrument of setting up or the functional select switch 6 that increases newly detects via 6522 PB3 oral sex C microprocessor 5, when being operated in the electronic musical instrument normal state, first group of change-over circuit 2 conducting of C microprocessor 5 controls are given former microprocessor 1 control sounding circuit 4, and make in second group of change-over circuit 3 6522 to be in input state, when being operated in CRT such as Karaoke demonstration or player function state, C microprocessor 5 makes first group of change-over circuit be in three-state, and controlling 6522, to make its A mouth and B mouth be with lockly to deposit output and give C microprocessor 5 sounding circuit 4 and control, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, the C microprocessor makes first group of change-over circuit conducting and makes 6522 A mouth and the B mouth is that input port of depositing with lock can be with interrupting or inquiry obtains the control routine that former microprocessor send toward sounding circuit, do the contrast training as the standard melody that need are emitted in the music study course for the player, C microprocessor 5 makes first group of change-over circuit be in three-state again, and controlling 6522, to make its A mouth and B mouth be with lockly to deposit output and give C microprocessor 5 sounding circuit 4 and control.There is the ROM of 32K byte in external ci and qu storehouse, music study course storehouse 7, first song content surplus disposable/replaceable expands ten, its address wire, data line, read-write control line all hang on the bus of C microprocessor 5, there is a plug-in card socket in this external ci and qu storehouse, with the corresponding qin shell of this socket position on open the hole that can insert for external ci and qu storehouse plug-in card, to be convenient for changing.

The foregoing description all illustrates for electronic musical instruments such as the electronics guiding principle qin 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 (7)

1. one kind mainly by former microprocessor, independent sounding circuit or non-independent sounding circuit, voicefrequency circuit, loudspeaker, the multifunction electronic musical instrument that key and control knob etc. constitute, it is characterized in that: 1. set up the C microprocessor, the O mouth that is used for keyboard scan of former microprocessor be coupled to the C microprocessor itself the I mouth or the data line that is coupled to the C microprocessor through other I/O circuit give the output signal of keyboard scan to detect former microprocessor, 3. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the I mouth of C microprocessor, perhaps be coupled to C microprocessor data line from the I mouth that is used for keyboard scan of former microprocessor with other expansion I/O circuit, detect former microprocessor and give the input signal of keyboard scan, and 3. both in conjunction with monitoring and record keyboard scan pulse to be used for music teaching, 4. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the O mouth of C microprocessor or be coupled to the I mouth that is used for keyboard scan of former microprocessor with the data line of C microprocessor through the expansion I/O circuit, send the I mouth that be used for keyboard scan of data to former microprocessor, 2. come simulating keyboard to play with 4. both combinations to realize that the lyrics show and the synchronous Karaoke of accompaniment music duration, music score shows and the synchronous music teaching of music, 5. the control end of expansion I/O circuit is given the control of C 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 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 ordinary electronic musical instrument state, the code of former microprocessor control sounding circuit is given sounding circuit and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor is sent into former microcontroller circuit to the key assignments of melody to send 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 the C microprocessor is only sent into former microcontroller circuit to the key assignments of melody to send music, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, former microprocessor was given the keyboard scan pulse when C microprocessor was played according to screen display or study course textbook from former microprocessor monitors and recorder, and and its mini system in music study course standard make comparisons, the music score that music teaching is used, 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 former microcontroller circuit emits in the music study course to the key assignments of melody and done the contrast training and make an appraisal and play prompting for the player to show.

2. one kind mainly by former microprocessor, independent sounding circuit or non-independent sounding circuit, voicefrequency circuit, loudspeaker, the multifunction electronic musical instrument that key and control knob etc. constitute, it is characterized in that: 1. set up C microprocessor and Y microprocessor, 2.C microprocessor and Y microprocessor energy exchange message, the O mouth that is used for keyboard scan of former microprocessor be coupled to the Y microprocessor itself the I mouth or the data line that is coupled to the Y microprocessor through other expansion I/O circuit give the output signal of keyboard scan to detect former microprocessor, 4. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the I mouth of Y microprocessor, perhaps be coupled to Y microprocessor data line from the I mouth that is used for keyboard scan of former microprocessor with the expansion I/O circuit, detect former microprocessor and give the input signal of keyboard scan, and 4. both in conjunction with monitoring and record keyboard scan pulse to be used for music teaching, 5. be coupled to the I mouth that is used for keyboard scan of former microprocessor with the O mouth of Y microprocessor or be coupled to the I mouth that is used for keyboard scan of former microprocessor with the data line of Y microprocessor through the expansion I/O circuit, send the I mouth that be used for keyboard scan of data to former microprocessor, 3. come simulating keyboard to play with 5. both combinations to realize that the lyrics show and the synchronous Karaoke of accompaniment music duration, music score shows and the synchronous music teaching of music, 6. the control end of expansion I/O circuit is all controlled by the Y microprocessor, 7. 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, also can use the selected songs button or which kind of duty key determines by C processor or Y microprocessor, when being operated in ordinary electronic musical instrument state, former microprocessor is given sounding circuit the code of control sounding circuit and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor is sent into former microcontroller circuit to the key assignments of melody to send music by the little processing of Y, 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 is only sent into former microcontroller circuit to the key assignments of melody to send music by the little processing of Y, making cassette player uses, be operated in and detect the primary electron musical instrument and play when being used for music teaching, former microprocessor was given the keyboard scan pulse when Y microprocessor was played according to screen display or study course textbook from former microprocessor monitors and recorder, give C microprocessor, make comparisons by music study course standard in C microprocessor and its mini system, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, also the C microprocessor is sent into former microcontroller circuit to the key assignments of melody to emit music by the little processing of Y, and the standard melody of emitting in the music study course is done the contrast training and make an appraisal and play prompting for the player to show.

3. one kind mainly by former microcontroller circuit, independent sounding circuit, voicefrequency circuit, loudspeaker, the multifunction electronic musical instrument that key and control knob etc. constitute, it is characterized in that: 1. set up the C microprocessor, former microprocessor data or the address bus relevant with sounding circuit, control bus is coupled to the I mouth of C microprocessor, perhaps use the expansion I/O circuit from former microprocessor data or the address bus relevant with sounding circuit, control bus is coupled to the data or the address bus of C microprocessor, control bus, to accept the code of former micro processor controls sounding circuit, again the data of C microprocessor or address bus, control bus is coupled to the data or the address bus of sounding circuit, control bus is with the control sounding circuit, 2. the control end of expansion I/O circuit is all controlled by the C microprocessor, 3. 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 ordinary electronic musical instrument state, the C microprocessor is given sounding circuit the code of the control sounding circuit of the former microprocessor that receives and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor waits Karaoke in it self mini system the character code in ci and qu storehouse to deliver to access in the character library character pattern to show for CRT and uses, and control sounding circuit with the coding of melody and send music, come control character to show with the control coding with music duration synchronous change, perhaps only emit music with the coding control sounding circuit of melody, 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 recorder according to screen display or the study course textbook on the music study course when playing former microprocessor send sounding circuit to send music on the one hand for the code of sounding circuit, music study course standard is made comparisons in one side and its mini system, the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is given sounding circuit with the coding of melody 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.

4. one kind mainly by former microcontroller circuit, independent sounding circuit, voicefrequency circuit, loudspeaker, the multifunction electronic musical instrument that key and control knob etc. constitute, it is characterized in that: 1. set up C microprocessor and Y microprocessor, 2.C microprocessor and Y microprocessor energy exchange message, 3. the I mouth of Y microprocessor directly is coupled to the data or the address bus of former microprocessor, control bus, perhaps use data or the address bus of expansion I/O circuit from former microprocessor, control bus is coupled to Y microprocessor data or address bus, control bus, to accept the code of former micro processor controls sounding circuit, again the data of Y microprocessor or address bus, control bus is coupled to the data or the address bus of sounding circuit, control bus is with the control sounding circuit, 4. the control end of expansion I/O circuit is all controlled by the Y microprocessor, 5. 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, also can use the selected songs button or which kind of duty key determines by C processor or Y microprocessor, when being operated in ordinary electronic musical instrument state, the Y microprocessor is given sounding circuit the code of the control sounding circuit of the former microprocessor that receives and is sent music, when being operated in Karaoke or state such as cassette player, the C microprocessor waits Karaoke in it self mini system the character code in ci and qu storehouse to deliver to access in the character library character pattern to show for CRT and uses, come control character to show with the control coding with music duration synchronous change, and control sounding circuit with the coding of melody by the Y microprocessor and send music, perhaps the C microprocessor is only emitted music with the coding of melody by Y microprocessor control sounding circuit, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, Y microprocessor monitors and recorder according to screen display or the study course textbook on the music study course when playing former microprocessor give C microprocessor for the code of sounding circuit, make comparisons by music study course standard in C microprocessor and its mini system, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, training prompting waits for CRT and shows, also the C microprocessor is emitted standard melody in the music study course with the coding of melody by Y microprocessor control sounding circuit and done the contrast training for the player and make an appraisal and play the prompting demonstration.

5. one kind mainly by former microcontroller circuit, independent sounding circuit, the C microprocessor, change-over circuit, voicefrequency circuit, loudspeaker, the multifunction electronic musical instrument that key and control knob etc. constitute, it is characterized in that: 1. the data of handlebar sounding circuit, address bus, control bus or give first group of change-over circuit of former microprocessor control, perhaps give second group of change-over circuit of C microprocessor control, second group of change-over circuit is that a road of the little processing direction of C conducting two-way admittance and past has latch function, 2. above-mentioned change-over circuit can be mainly be made up of circuit with ternary function or circuit with latch function, 3. one side of first group of change-over circuit links with former microprocessor, another side and sounding circuit link, one side of second group of change-over circuit links with the C microprocessor, another side and sounding circuit link, 4. the conducting control end in first group of change-over circuit and the second group of change-over circuit, all give the control of C microprocessor, the logic relation of the conducting of two groups of change-over circuits is: during first group of change-over circuit conducting in second group of change-over circuit toward one tunnel unidirectional conducting of C microprocessor direction, another road during first group of not conducting of change-over circuit in second group of change-over circuit is toward the unidirectional conducting of sounding circuit direction, 5. 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 the electronic musical instrument normal state, the C microprocessor is controlled first group of change-over circuit and is given former microprocessor control sounding circuit, and second group of change-over circuit is in three-state or the past unidirectional conducting state of C microprocessor direction, when being operated in CRT such as Karaoke demonstration or player function state, the C microprocessor is controlled second group of change-over circuit and is given the control of C microprocessor sounding circuit, and first group of change-over circuit is in three-state, C microprocessor or the character code in the ci and qu storehouses such as Karaoke delivered to access character pattern in the character library and show to use for CRT, and control sounding circuit with the coding of melody and send music, come control character to show with the control coding with music duration synchronous change, perhaps only emit music with the coding control sounding circuit of melody, making cassette player uses, be operated in and monitor the primary electron musical instrument and play when being used for music teaching, when the C microprocessor makes first group of change-over circuit conducting in second group of change-over circuit one the tunnel through latch toward the unidirectional conducting of C microprocessor direction, former microprocessor made comparisons in the code of sounding circuit and its mini system music study course standard when C microprocessor monitors and recorder played according to screen display or study course textbook, and the music teaching music score, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, in the time of can also being the C microprocessor and make first group of change-over circuit conducting, one the tunnel through the past unidirectional conducting of C microprocessor direction of latch in second group of change-over circuit, former microprocessor made comparisons in the code of sounding circuit and its mini system music study course standard when C microprocessor monitors and recorder played according to screen display or study course textbook, and the music score that music teaching is used, rhythm, speed, duration, the lyrics, fingering, the keyboard figure, estimate, the training prompting waits and shows for CRT, the time and make first group of not conducting of change-over circuit, another road in second group of change-over circuit is toward the unidirectional conducting of sounding circuit direction, and the standard melody of emitting in the music study course is done the contrast training and make an appraisal and play prompting for the player to show.

6. it is characterized in that according to claim 1 or claim 2 or claim 3 claim 4 or the described multifunction electronic musical instrument of claim 5: the C microprocessor of setting up is 6527 class CPU and 6528 class PPU and other interlock circuit with Nintendo's class game machine.

7. it is characterized in that according to claim 1 or claim 2 or claim 3 claim 4 or the described multifunction electronic musical instrument of claim 5: 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.

Images