CN2379873Y - Computerized music box - Google Patents

Abstract

The utility model discloses a computerized music box. A box body of the utility model is provided with micro-computer control element, a memory for a music book, a speaker, etc. inside; in addition, the utility model also comprises a random memory and an entry key for the music book, wherein, the random memory is an independent chip or is contained in the micro-computer control element; the entry key for the music book is connected with the input end of the micro-computer control element. The Computerized music box can call out the existing tracks from the memory for the music book via keyboard operation to play the tracks, and can also input the music book into the random memory with the keyboard operation via a micro computer to play the music book, consequently overcoming the limitation of the existing similar products, and thus the computerized music box has recreational property, and can help people learn music.

Description

The computer music box

The utility model relates to a kind of amusement small-sized electronic product, and especially a kind of improvement of music box of microcomputerized control belongs to the amusement article field.

Existing computer music box mainly is made up of the microcomputerized control element in the box body, music score memory and loudspeaker etc. usually.During work, the microcomputerized control element reads music signal from the music score memory, passes through loudspeaker plays again.In order to make it have certain alternative, the computer music box that has also is provided with the operating key that can regulate broadcasting speed, selection song.For example, the applying date is 920919, and application number is that 92218752.5 Chinese patent " computer music box " promptly is like this.These existing computer music boxes are compared with old-fashioned mechanical type music box, though have that reproduction time is long, song is many, a remarkable advantage such as volume and broadcasting speed are adjustable, still have limitation because of not importing music score.Time one is long, still can make the people feel to play the same old tune.

The purpose of this utility model is: at the deficiency of above-mentioned existing computer music box existence, propose a kind of computer music box that can import music score and play the input music score, thereby make its entertainment of further satisfying people on the original basis and learning music demand.

In order to achieve the above object, in the computer music box box body of the present utility model microcomputerized control element, music score memory and loudspeaker etc. are housed, its improvements are also to contain random memory (RAM) and music score enter key, described random memory is individual chips or is included in the microcomputerized control element that described music score enter key links to each other with the input end of microcomputerized control element.

Like this, when using this computer music box, both can access existing song from the music score memory by keyboard operation plays, can in random memory, import music score through micro computer by keyboard operation again, play again, thereby overcome the limitation of existing like product, it is recreational that the computer music box is had more, and can help learning music.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is the circuit structure diagram of the embodiment of Fig. 1.

In the computer music box box body 1 among Fig. 1 and Fig. 2 microcomputerized control element 6, music score memory 4, loudspeaker 2, keyboard 8 and battery 3, volume switch 5, power switch 7 etc. are housed.Microcomputerized control element 6 is essentially the 80C31 chip that contains random memory 6-1.9 is superimposed signal circuit, and 10 is audio amplifier circuit." 0 " in the keyboard 8-" 9 " number key and " # ", " b " number key are the music score enter key, and other English label keys are respectively performance, music, removing, input function key.On the keyboard extension line of each key respectively with the 80C31 microcomputer chip input end---1 to 8 pin links to each other.

During use, first power-on is pressed by the music score enter key again and is imported music score with digital form, and music score is stored in the random memory through micro computer, and the music score of input both can be a single-tone, also can be multitone harmony.Then press by playing key, the music score content that deposits random memory in just can play back, and tone, rhythm are accurate, can be used for sightsinging, the tuner of ear-training and stringed musical instrument.

The basic condition of another embodiment of the utility model is same as the previously described embodiments, and different is also to contain the beat pilot lamp.Therefore, at the music score of playing input simultaneously, flicker that can light shows beat.This embodiment can not broadcast yet, and uses as noiseless metronome separately.So more help music training such as sightsinging, ear-training, performance.

Claims (3)

1. computer music box, microcomputerized control element, music score memory and loudspeaker etc. are housed in its box body, it is characterized in that: also contain random memory and music score enter key, described random memory is individual chips or is included in the microcomputerized control element that described music score enter key links to each other with the input end of microcomputerized control element.

2. computer music box according to claim 1 is characterized in that: described micro computer element is the 80C31 chip that contains random memory.

3. computer music box according to claim 1 is characterized in that: also contain the beat pilot lamp.

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