SU1559376A1 - Electronic mini-organ - Google Patents

Abstract

The invention can be used in the development of microminiature electronic miniguns and allows not only the playback of the melody with its memorization and subsequent reproduction, but also the function of the operative correction of notes without the use of additional governing bodies. The purpose of the invention is to increase the convenience of the game while simplifying the design by introducing an element 39I, a delay unit 40 with the formation of new functional connections. The device contains a generator of 1 clock pulses, counters 2, 12, 25, elements And 3, 10, 17, 21, 31, triggers 4, 20, elements OR 5, 9, 11, 19, 22, 24, 33, keyboard 6, encoder 7 code notes, shapers 8, 18, 26, 29 pulses, switching blocks 13, 32, 36, 37, information bus 14, random access memory 15, register 16, blocks 23, 30, 34, 35 delays, address bus 27 , a persistent storage 28 and a mode key 38. 4 il.

Description

t

(21) 4357485 / 24-21

(22) 04.01.88

(46) 04.23.30. Bul If 15

(72) B.I. Ruvinsky, B.M. Alekhov,

V.P. Basho and A.V. Rosl Cove

(53) 681.828 (088.8)

(56) CGL, Mini-organ, Japan,

instructions for use, 1985.

USSR author's certificate IT 1270785, cl. G 10 H 7/00, 1984.

GASTO, VL-TONE, operatiorananual, Japan, 198Ј.

(54) ELECTRONIC MINI-ORGAN (57) The invention can be used in the development of microminiature electronic mini-organs and allows you to perform not only the function of playing a melody with its memorization and subsequent reproduction, but also the function of operative correction of notes without using additional control bodies. The purpose of the invention is to improve the convenience of the game while simplifying the design

(L

SL SP

se

00

1- {wj «31

is achieved by the introduction of the element And 39, and the block 40 of the delay with the formation of new functional connections. The device contains a generator of 1 clock pulses, counters 2, 12, 25, elements I 3, Yu, 17, 21, 31, triggers kt 20, elements OR 5, 9, 11, 19, 22 2, 33, keyboard 6, encoder 7 Co-invention relates to electric music devices and can be used in the development of microminiature electronic mini-organs.

The purpose of the invention is to improve the convenience of the game due to the implementation of the note correction mode without using the addition gutter key while simplifying the device.

FIG. 1 shows a block diagram of an electronic mini organ; in fig. 2 is a timing diagram for entering note codes and durations into a random access memory; in fig. 3, a recorded tune playing diagram; in fig. k is the timing diagram for correcting an incorrect note during playback.

Electronic mini-organ contains a generator connected in series

1-stroke pulses, the first counter

2 pulses, the transfer output of which is connected to its control input, the first element FROM, the counting trigger

 {whose output is the output of a mini-organ, serially connected the first element OR 5, the inputs of which are connected to the outputs of the keyboard 6 and the inputs of the encoder 7 of the note code, the first Shaper 8 pulses, the input of which through the second element OR 9 is connected to the second input of the first element 3 and the second element 10, the third element OR 11, the second counter 12 pulses, the summing input of which is connected to the output of the generator 1 clock pulses, the first switching unit 13, information bus l, random access memory “device 15 regis p 16, the third element 179 and a second pulse shaper 18, or fourth element

-

19, the trigger 20 mode, the fourth element And 21, the fifth element OR 22, the second input of which is connected to the output of the second element And 10, the first block

-

5593764

yes notes, shapers 8, 18, 26, 29 pulses ,. switching blocks 13,

 32, 36, 37, information bus k, random access memory 15, register 16, blocks 23, 30, 3, 35 delays, address bus 27, permanent memory 28 and mode key 38, k orl

j

20

25 o

five

about 45 55

23 delay, the sixth element OR 2k, the third counter 25 pulses, the outputs of which are connected to the address inputs of the random access memory 15, and the installation input in O is connected to the output of the third element OR 11, and the second input of the fourth element And 21 is connected to the output of the third driver 26 pulses, the input of which is connected to the second input of the second element OR 9, the outputs of the address bus 27 to the inputs of the permanent storage device 28, the outputs of which are connected to the information inputs of the first counter of 2 pulses.

The mini-organ also contains series-connected fourth pulse shaper 29, whose input is connected to the second output of mode trigger 20, and through the second delay block 30 is connected to the first input of the fifth element 31 and the control input of the second switching unit 32, the seventh element OR 33 the second input of which is connected to the second input of the sixth element OR 2k and the output of the fifth element AND 31. the third delay unit 3, the output of which is connected to the third input of the fifth element OR 22, to the control input of the register 16 and through the fourth block approx 35 a delay to the control input of the second pulse counter 12 pulses, the second input of the fifth element I 31 connected to the transfer output of the second counter 12 of pulses, the output of the third element OR 11 is connected via the third switching unit Zb to the second group of inputs of the information bus 1, the outputs of the operating the storage device 15 is connected to the information inputs of the second counter 12 pulses, the outputs of the register 16 are connected through the second switching unit 32 to the first group of inputs

address bus 27, to the second group of inputs of which, via the fourth switching element 37, are connected the outputs of the encoder 7 of the note code, the output of mode trigger 20 is connected to the control input of the fourth switching unit 37 and to the second input of the second element 10, the second input to the mode key 38 , the output of the fourth element And 21 - with the control input of the first switching unit 13 in series, connected by the sixth element And 39, the first input of which is connected to the output of the first, and the second input - to the input of the fourth pulse shaper 29, the fifth block ca delay, the output of which is connected to the third input of the third and second input of the fourth element OR 11 and 19, and the input to the subtractive input of the third counter 25 pulses.

Electronic mini-body works as follows.

In the initial state, mode trigger 20 is in the 0th state. This corresponds to the mode of recording notes in the random access memory 15 (RAM). When you press a note key in the keyboard unit 6, the key code is generated at the output of the encoder 7, which arrives on the address bus 27 of the permanent storage device 28 (ROM) via the fourth switching element 37 controlled by Log 1 from the inverse output of the trigger 20. At the output of the ROM 28, the division factor that is strictly fixed for a given note, arrives at the information input of the first counter of 2 pulses and is written to it at the moment the transfer signal appears. The first pulse counter 2 divides the reference frequency arriving at its counting input from generator 1. The transfer of 2 pulses from the output of the first counter, appearing at a frequency equal to twice the frequency of the note being played, flows through the first element 3 to the input of the counting trigger 4, at the output of which, square-shaped pulses are generated with a duty cycle of two and a frequency equal to the frequency of the note being played. The first element AND 3 is controlled by the output of the second element OR 9, the output of which is set. Log 1 in the case of pressing the keyboard 6 key or in the playback mode, when in the trigger 20

m 10

20

25

5593766

is Log. 1. It is necessary that in the silent mode, the input of the trigger k does not receive transfer pulses from the first counter 2 impulses that operate without stopping.

At the moment of pressing each key of the keyboard 6 at the output of the first element OR 5, the Log „1 is generated, the first shaper of 8 pulses is triggered and produces a short pulse that coincides with a positive signal at the output of the first element OR 5. Pulse jc from the output of the first shaper passes through the second element And 10, to the second input of which the log enters. 1 from the inverse trigger output 20, and the third element OR 11 to the control input of the third switching unit 36, which connects the outputs of the encoder 7 via the input information bus 1 and records the next note in RAM 15. At the same time, the signal from the output of the third element OR 11 is fed to the input installation in About the second counter 12 and zero it at the time of recording the next note in the RAM 15.

The signal from the output of the second element AND 10 through the fifth element OR 22 is fed to the input of the first delay block 23 and then through the sixth ORZE 2 to the summing input of the third counter 25 pulses, and in the counter 35 25 the address of the next RAM cell 15 is set. behind the note) the RAM cell 15 records the duration of the note (in the additional code) from the second counter 12 pulses. The moment of entering the duration of the note in the RAM 15 is determined by the moment of releasing the corresponding key of the keyboard 6. At this moment, a short pulse is formed at the output of the third pulse driver 26, which coincides with the negative signal front at the output of the first element OR 5.

The impulse from the output of the imager 26 passes through the fourth element I 21 to the control input of the first switching unit 13, connecting the output bus of the second counter 12 pulses to the information bus 1 and recording the duration of the note into the cell of RAM 15 at the address specified by the third counter 25 pulses. At the same time30

40

45

50

but from the output of the fourth element And 21 signal Log. 1 is fed to the input of the fifth element OR 22 and then, as described, to the summing input of the third counter of 25 pulses, preparing the address for the next note. Thus, the sequential recording of notes and their durations, i.e., the melody being played, into RAM 15 is performed.

To play the melody previously recorded in ROM 1 5, the mini-organ operation mode key is pressed, and the mode trigger 20 is set to position 1, which corresponds to the melody playback mode. At the time of setting the trigger 20 to position 1, a short pulse is generated at the output of the fourth pulse driver 28, which coincides with a positive signal at its input, arriving at the zero setting input of the third pulse counter 25, and through the third element OR 11 to the zero input of the second pulse counter 12 At the same time, through the seventh element OR 33 and the third element 3 delay, the signal arrives at the control input of register 16, where the first of the memorized notes is entered, since at this point in the third counter 25 set to zero address.

From the output of the third delay unit 3, the specified signal is also fed to the input of the fourth delay unit 35 and to the input of the fifth element OR 22 and further, as described, to the summing input of the third counter of 25 pulses, preparing therein (with some delay determined by the first block 23 delays) next address - the address of the duration of the read note. After that, at the output of the fourth delay unit 35, a signal arrives at the control input of the second pulse counter 12 and records the duration of the note into it. The delay value of the fourth block 35 is selected to be greater than the delay value of the first block 23 so that the recording in the second counter 12 is performed after setting the required address in the third counter 25.

From the output of the trigger 20 mode signal log. 1 through the second delay unit 30 is fed to the input of the second element OR 9 and to the control input

0

five

the second switching unit 32, which provides connection to the address bus 27 of the register 16. The delay value of the second unit 30 is chosen greater than the delay value of the third unit 3 in order to provide the indicated connection of the register 16 after reading the necessary information in it on the RAM 15.

The time of the note sound is determined by its duration, read into the second counter 12, the summing input i of which receives pulses from the generator 1, the end of the note duration is determined by the moment of transfer at its output entering the input of the fifth element I 21 and further through the sixth the element OR 2k to the summing input of the third counter 25, preparing the address of the next note in it. From the output of the fifth element AND 31, the signal also enters through the seventh element OR 33 to the input of the third block 5 delays and further, as described, provides reading to the register 16 and to the second counter 12 of the next note and its duration. In this way, the playback process of the recorded tune is performed. At the end of the melody in register 16, there is a sign of the end of the melody (which corresponds to an unused note code, for example O), while at the output of the third element I 17 you are 0

0

five

The signal is logged. 1, post5

0

five

firing to the input of the second driver 18 pulses and then through the fourth element OR 30 to the zero input of the trigger 20 mode. If the mode key 38 is then released, the melody is stopped, otherwise the mode trigger 20 is again set to position 1, and the melody playback cycle is repeated.

To correct the wrong note, you need to press the button 6 of the desired note in the keyboard while it is playing. A pulse is generated at the output of the first pulse driver 8, passing through the sixth element 39 and arriving at the subtracting input of the third counter 25, as a result of which the address of the sounding note is set in the third counter 25. At the same time, the specified pulse arrives through the fifth block 40 of the delay to the input of the third element OR 11 and then to zero

The installation input of the second counter 12 and the control input of the third switching unit 36t provides a connection for the output of the encoder 7 of the code of notes on the input information bus 14 and the entry in the RAM 15 of the played note, as described. From the output of the fifth delay unit 40, the signal also enters through the fourth element OR 19 to the zero input of the mode trigger 20 and switches the electronic mini-organ to the note recording mode, while the mode key 38 must be omitted. For the subsequent reproduction of the corrected melody, it is necessary, after finishing the correction, to press the mode key 38.

The above scheme of the electronic mini-organ makes it very easy to carry out the correction of notes without using additional control bodies (keys), which is an undoubted advantage. PLM KP 1802 series logic chips or K561 LI1 logic chips can be used as the encoder 7 of the note code. Switching blocks 14, 32, 36 and 37 are standard multiplexers, for example, K5 & LS2 series ROM type is not significant, it can be used, for example, ROM ROM series 1802.

In addition, the proposed mini-organ can be made in the form of an independent integrated circuit. In this case, the logically used elements will have a specific structure defined by the data formats (number of notes or octaves, counter size) and the technology of manufacturing an integrated circuit.

FIG. 2, the following notation is entered: 41 - signal at the output of the first element OR 5 42 - at the output of the first driver 8. Pulses; 43 - on the second element And 10; 44 - On the third element OR 11; 45 - at the third switching unit 36; 46 - on the fifth element OR 22; 47 - on the first block 23 of the delay; 48 - on the sixth element OR 2k; 49 on the third driver 26 pulses; 50 on the fourth element and 21.

FIG. 3, the following notation is entered: 51 - signal at the output of the tri-gera 20 mode; 52 - on the fourth former 29 pulses; 53 - on the seventh element OR 33; 54 on the third

,

59376

block

ten

ten

34 delays; 55 - on register 16; 56 - on the sixth element OR 24;

57 on the fourth block 35 of the delay;

58- on the fifth element And 21; 59 on the third element And; 60 - on the second driver 18 pulses.

FIG. 4, the following notation is entered: 61 —signal at the output of mode trigger 20; 62 - on the fourth driver 29 pulses; 63 - on the seventh element OR 33; 64 - on the third block 34 of the delay; 65 - on register 16; 66 - on the sixth element OR 24; 15 67 on the fourth block 35 of the delay; 68 - on the fifth element AND 31 69 - on the first element OR 5; 70 - on the first shaper 8 pulses; 71 on the sixth element And 39; 72 - on p - 20 volume block 40 delay; 73 - on the third element OR 11; 74 - on the sixth element OR 24; 75 - on the third driver 26 pulses; 76 - on the fourth element And 21. 25

Claims (1)

Invention Formula Electronic mini-organ containing a series-connected clock pulse generator, the first pulse counter, the transfer output of which is connected to its control input, the first element I, the counting trigger, the output of which is the output of the mini organ, serially connected the first element, inputs which is connected to the outputs of the keyboard and the inputs of the encoder code notes, the first pulse shaper, the input of which is connected through the second element OR to the second input of the first element AND, the second element AND, the third element OR, Tue The second pulse counter, the summing input of which is connected to the output of the clock generator, the first switching unit, the information bus, the random access memory, the register, the third AND element, the second pulse shaper, the fourth OR element, the mode trigger, the fourth AND element, the second OR element, the second input of which is connected to the output of the second element AND, the first delay unit, the sixth element OR, the third pulse counter, the outputs of which are connected to the address inputs of the random access memory , and the input of the zero setting is connected to the second thirty 35 40 50 55 11 1 the input of the third element OR, and The second input of the fourth element I is connected to the output of the third pulse generator, the input of which is connected to the second input of the second OR element, the outputs of the address bus are connected to the inputs of the permanent storage device, the outputs of which are connected to the information inputs of the first pulse counter, sequentially connected to the fourth pulse shaper, input which is connected to the second output of the mode trigger, and through the second delay block is connected to the first input of the fifth element I and the control input of the second comm the seventh OR element, the second input of which is connected to the second input of the sixth OR element and the output of the fifth AND element, the third delay block, the output of which is connected to the third input of the fifth OR element, to the control input of the register and through the fourth delay block to the control input of the second pulse counter, the second input of the fifth element I is connected to the transfer output of the second pulse counter, the output of the third element OR is connected via the third switching unit to the second group of information bus inputs, operative moves FIG. 2 0 376 five 0 five 0 12 the second storage device is connected to the information inputs of the second pulse counter, the register outputs are connected via the second switching unit to the first group of addresses of the address bus, to the second group of inputs of which the encoder outputs are connected via the fourth switching unit — the code of the trigger trigger is connected to the control input the fourth switching unit and the second input of the second element And the second input is connected to the mode key, the output of the fourth element And is connected to the control input of the first switch block, which is different from the fact that, in order to increase the convenience of the game by implementing the note correction mode without using an additional key while simplifying the mini-organ, the sixth And element, the first input of which is connected to the output of the first, and the second input - with the input of the fourth pulse shaper, the fifth delay unit, the output of which is connected to the third input of the third and second input of the fourth OR element, and the input - with the subtractive input of the third pulse counter. 0VS.S