KR19990041218A - Portable wireless flexible accompaniment method and device - Google Patents

Abstract

The present invention relates to a portable wireless flexible accompaniment method and a device therefor, by selectively using at least two or more FM transmission frequencies to solve the problem of overlapping with the transmission frequency of the FM broadcasting station according to the region, and the lyrics and songs of the accompaniment A portable wireless music accompaniment method and a device in which a score is expressed in L.C.D. (LCD), the echo length of the microphone can be adjusted, and a jack is provided to use a car power source. .

In order to implement this, the portable wireless accompaniment apparatus of the present invention includes key input means for inputting or controlling a song that a user wants to sing, accompaniment data storage means for storing accompaniment data, song title, and song lyrics data. Driver for displaying the lyrics data storing means, temporary storage means for temporarily storing data read by the accompaniment data storage means and lyrics data storage means, and lyrics data from the temporary storage means. LCD display means for displaying the lyrics selected by the liquid crystal driver means, program storage means incorporating a unique program for operating the devices, and digital signals from the temporary storage means. Digital / Analog Converts into Analog Signal A call converting means, a central processing means for controlling the operation of the devices by means of a signal input to the key input means, a microphone for inputting a song voice sung by the user, and a voice signal from the microphone into electrical signals And a voice signal converting means for adjusting and inputting the voice signal to a desired echo length, a flexible accompaniment sound from the digital / analog signal converting means, and a microphone sound from the voice signal converting part. Signal mixing and volume adjusting means for selectively adjusting the volume of the mixed sound, and FM transmitting means for modulating and amplifying a signal from the signal mixing and volume adjusting means and transmitting at a selected frequency among at least two transmission frequencies. And an earphone jack provided to listen to the signal from the signal mixing and volume control means with the earphone. Characterized in that made in the power supply having a car jack having to use the car power source.

Description

Portable wireless flexible accompaniment method and device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless accompaniment method and apparatus thereof, and in particular, by using at least two or more FM transmission frequencies selectively, thereby solving the problem of overlapping with the transmission frequency of FM broadcasting stations according to regions, and accompaniment lyrics and songs. A portable wireless music accompaniment method and a device which display a score after the end of the period in LCD, and which can adjust the echo length of the microphone, and which is equipped with a jack to use the power of the car. will be.

In general, a portable wireless flexible accompaniment apparatus refers to a karaoke device that can sing a song wirelessly using an FM radio reception frequency, and its operation and configuration will be described with reference to the accompanying drawings.

1 is a block diagram of a portable wireless flexible accompaniment apparatus according to the prior art, and includes a key input unit 11 for inputting or controlling a song that a user wants to sing, and an accompaniment data storage ROM 15 storing accompaniment data. ), A temporary storage RAM 14 for temporarily storing data read from the accompaniment data storage ROM 15, a program storage ROM 13 having a unique program for operating the device, and The digital / analog signal converter 17 converts the digital signal from the temporary storage RAM 14 into an analog signal, and the center of controlling the operation of the devices by the signal input to the key input unit 11. It consists of a processing part 12. In addition, a microphone 18 for inputting a song voice sung by the user, a voice signal converter 19 for converting a voice signal from the microphone 18 into an electrical signal and inserting an echo into the voice signal; A signal mixing unit and a volume control unit for mixing the audio accompaniment sound from the digital / analog signal converter 17 and the microphone sound from the voice signal converter 19, and adjusting the volume of the mixed sound. (22), an FM transmitter (23) for modulating (24) and amplifying (25) the signals from the signal mixer and the volume controller (22), and the signal mixer and the volume controller ( 22 is an earphone amplifier 26 for amplifying the signal from the earphone (ear phone).

First, when a user inputs a code number of a song to be sung by the key input unit 11, the user recognizes the code number of the song and issues a command to the program storage ROM 13. Then, in the program storage ROM 13, a song selected by the user is loaded from the accompaniment data storage ROM 15 and temporarily stored in the temporary storage RAM 14.

At this time, the semi-accompaniment data signal stored in the temporary storage RAM 14 is converted into an analog signal by the digital / analog converter 17 into a digital signal to convert the signal mixer, the volume controller 22, and the FM transmitter 23. It is sent through.

Meanwhile, the user sings to the microphone 18 according to the prelude coming from the radio, and converts the voice signal input through the microphone 18 into an electrical signal in the voice signal converter 19 and echoes the voice signal. The sound is output to the signal mixer and the volume controller 22.

Accordingly, the signal mixer and volume controller 22 synthesizes the accompaniment from the digital signal / analog signal converter 17 and the microphone sound from the voice signal converter 19 to perform an FM transmitter ( 23), the radio receiving the transmission frequency can listen to the user's singing voice in tune with the accompaniment.

By the way, in the conventional portable wireless flexible accompaniment device configured as described above, there is a problem in that it cannot be used when it overlaps with the transmission frequency of the newly opened local FM broadcasting station by using only one designated FM transmission frequency.

In addition, the conventional portable wireless flexible accompaniment device is to use a battery as a power source has a long service life, there is a problem that can not be used in a situation where it is difficult to purchase a battery if the battery is completely discharged during use.

In addition, the conventional portable wireless music accompaniment device has the inconvenience of having to sing while looking at the song lyrics when the singer does not know the song lyrics, and also turned on the interior lights of the car to see the lyrics of the song when you sing in the car at night There was a problem in that the driving is to interfere with the driver's safe operation.

In addition, the conventional portable wireless flexible accompaniment device has a problem that the echo length of the microphone is fixed to give a monotonous feeling to the user if you continue to use it, so that the user can feel the demonstration quickly.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to use at least two or more FM transmission frequencies selectively, thereby solving the problem of overlapping the transmission frequency of FM broadcasting stations according to regions. An accompaniment method and apparatus are provided.

In addition, another object of the present invention is to provide a portable wireless flexible accompaniment method and apparatus for displaying the lyrics of the accompaniment and the score after the song is L.C.D.

Further, another object of the present invention is to provide a portable wireless flexible accompaniment method and apparatus for adjusting the echo length of a microphone as desired by a user.

Further, another object of the present invention is to provide a portable wireless flexible accompaniment method having a jack so as to use the power source of the vehicle and its apparatus.

1 is a block diagram of a portable wireless flexible accompaniment apparatus according to the prior art

Figure 2 is a block diagram of a portable wireless flexible accompaniment apparatus according to an embodiment of the present invention

Figure 3a is a front view of a portable wireless flexible accompaniment device according to the present invention

Figure 3b is a rear view of a portable wireless flexible accompaniment device according to the present invention

Explanation of symbols on the main parts of the drawings

11, 31: key input unit 12, 32: central processing unit

13, 33: Program storage ROM 14, 34: Temporary storage RAM

15, 35: accompaniment data storage ROM 36: lyrics data storage ROM

17, 37: digital / analog converter 18, 38: microphone

19, 39: voice signal conversion unit 20, 40: amplification stage

21, 41: delay circuit

22, 42: signal mixing section and volume control section

23, 43: FM transmitter 24, 44: frequency modulation stage

25, 45: high frequency amplifier stage 26, 48: earphone amplifier unit

49 liquid crystal driver portion 50 LCD display portion

51: external power jack 52: power supply

53: earphone jack 54: power switch

55: Volume 56: Battery Insert Cover

60: antenna wire

In order to achieve the above object, the portable wireless accompaniment method of the present invention, the first process of displaying the number and title of the song selected by the user on the liquid crystal display,

A second process of writing and erasing the lyrics selected to the liquid crystal display according to the accompaniment when the user issues a start command after the first process;

A third process of converting a voice signal by adjusting and inputting a microphone sound, which is called by a user, to a desired echo sound length based on the lyrics displayed on the liquid crystal display;

A fourth process of mixing the selected accompaniment sound with a microphone sound and adjusting it to a desired volume;

And a fifth step of modulating and amplifying the signal from the fourth step and transmitting the signal from one or more transmission frequencies selected from at least two transmission frequencies.

In order to achieve the above object, the portable wireless flexible accompaniment apparatus of the present invention, the key input means for inputting or controlling the song that the user wants to sing, and

Accompaniment data storage means for storing accompaniment data;

Lyrics data storage means for storing the song title and song lyrics data, and

Temporary storage means for temporarily storing the data read by the accompaniment data storage means and the lyrics data storage means;

Liquid crystal driver means for driving to display lyrics data from said temporary storage means;

LCD display means for displaying the lyrics selected by the liquid crystal driver means;

Program storage means incorporating a unique program for operating the devices;

Digital / analog signal conversion means for converting the digital signal from the temporary storage means into an analog signal;

Central processing means for controlling the operation of each device by the signal input to the key input means;

A microphone that inputs the voice of the song the user sings,

Voice signal conversion means for adjusting and inputting the length of the echo sound desired by the user to the voice signal of the microphone;

Signal mixing and volume control means for mixing the flexible accompaniment sound from the digital / analog signal conversion means and the microphone sound from the voice signal conversion unit, and selectively adjusting the volume of the mixed sound;

FM transmitting means for modulating and amplifying a signal from the signal mixing and volume adjusting means and transmitting at a selected frequency among at least two transmission frequencies;

It is characterized in that it comprises an earphone jack provided for listening to the signal from the signal mixing and volume control means to the earphone and the car power jack provided to use the car power.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram of a portable wireless flexible accompaniment apparatus according to an embodiment of the present invention, the key input unit 31, the central processing unit 32, the program storage ROM 33, the temporary storage RAM 34, the accompaniment Data storage ROM 35, lyrics data storage ROM 36, digital / analog converter 37, microphone 38, voice signal converter 39, signal mixing and volume controller 42, FM transmitter ( 43), an earphone amplifier 48, a liquid crystal driver 49, and an LCD display 50.

The key input unit 31 serves to input or control a song that a user wants to sing, and the central processing unit 32 receives a signal input to the key input unit 31 to store the program storage ROM 33 and temporary storage. The RAM 34, the accompaniment data storage ROM 35, the lyrics data storage ROM 36, and the digital / analog changer 37 control the operation of each.

The accompaniment data storage ROM 35 is a memory storing accompaniment data, the lyrics data storage ROM 36 is a memory storing song title and song lyrics data, and the temporary storage RAM 34 is It is a memory for temporarily storing data read from the accompaniment data storage ROM 35 and the lyrics data storage ROM 36.

The LCD display unit 50 displays the lyrics data from the temporary storage means, and is driven by the liquid crystal driver 49.

The program storage ROM 33 is a memory in which a unique program for operating the devices is embedded. The program storage ROM 33 informs the central processing unit 32 of a processing order and a control method of data input from a key.

The digital / analog signal converter 37 converts the digital signal from the temporary storage RAM 34 into an analog signal.

In addition, the voice signal converter 39 includes a signal amplifier stage 40, a delay (echo) circuit stage 41, and a power switch 52. The voice signal from the microphone 38 is converted into an electrical signal. The voice signal is adjusted to the length of the echo sound desired by the user.

The signal mixing and volume control unit 42 mixes a flexible accompaniment sound from the digital / analog signal conversion means and a microphone sound from the voice signal conversion unit, and selectively adjusts the volume of the mixed sound. Do it.

The FM transmitter 43 is composed of a frequency modulating stage 44, a high frequency amplifying stage 45, and oscillation frequency selection switches OSC1 and OSC2, and modulates the signal from the signal mixing and volume adjusting section 42. Amplifies and transmits the signal at a selected frequency among at least two transmission frequencies.

And, the earphone amplifier 48 is for amplifying the signal used to listen to the signal from the signal mixing and volume control means with the earphone, the power supply 52 is provided with a jack for the car power to use the car power together It is characterized by.

Operation of the wireless flexible accompaniment device of the present invention by the above configuration is as follows.

First, when a user inputs a code number of a song to be called by the key input unit 31, the central processing unit 32 recognizes this and reads the input data processing order and method recorded in the program storage ROM 33. According to the processing order and control method, the song title is read and processed by the lyrics data storage ROM 36, and the liquid crystal driver unit 49 instructs the liquid crystal driver unit 49 to display the song number and the number on the LCD display unit 50. Write down the song title.

The user presses the start button after checking the displayed song number and song title.

Then, the central processing unit 32 reads back from the program storage ROM 33 the processing order and control method of song performance and lyrics display, and accompaniment data storage ROM 35 and lyrics data storage ROM 36 according to this instruction. Data is retrieved from the datastore and stored in the temporary storage ROM 34.

At this time, the semi-accompaniment data stored in the temporary storage RAM 34 is sent to the digital / analog converter 37 according to the command of the central processing unit 32 is converted into an analog signal. The analog signal is transmitted through the signal mixer, the volume controller 42, and the FM transmitter 43.

Meanwhile, the lyrics data stored in the temporary storage RAM 34 allows the central processing unit 32 to control the liquid crystal driver 49 to write and erase lyrics on the LCD display unit 50 in accordance with the accompaniment.

The analog signal which is an output signal of the digital / analog converter 17 may be amplified by the earphone amplifier 48 as a stereo accompaniment sound, and then the flexible accompaniment sound may be heard by the earphone.

Meanwhile, the user sings to the microphone 18 according to the prelude coming from the radio, and converts the voice signal input through the microphone 18 into an electrical signal in the voice signal converter 19 and echoes the voice signal. The sound is output to the signal mixer and the volume controller 22.

The voice signal converting unit 19 is provided with a switch such as 'simple microphone sound', 'short echo sound', 'long echo sound', and the user selects one of the switches as a micro song. You can call

The signal mixer and the volume controller 22 synthesize the accompaniment from the digital signal / analog signal converter 17 and the microphone sound from the voice signal converter 19 and the FM transmitter 23. In this case, the user can adjust the volume so that the flexible accompaniment sound and the microphone sound are appropriate.

The synthesized signal in which the flexible accompaniment and the microphone sound are appropriately mixed in the signal mixing and volume control unit 42 is synthesized as one (mono) through the resistors R5 and R6, and the synthesized signal is the frequency of the FM transmitter 43. After being modulated with the oscillation frequency in the modulation stage 44, it is amplified in the high frequency amplification stage 45 and then transmitted through the antenna. Therefore, in the radio which received this transmission frequency, the voice of the user singing according to the accompaniment can be heard.

In the present invention, the oscillation frequency of the FM transmitter 43 is provided in two or more (for example, 98.3Mhz, 98.7Mhz) so that the user can select and use a frequency not used by the local broadcasting station.

3A and 3B illustrate a front view and a rear view of a wireless flexible accompaniment device according to the present invention, wherein the LED display unit 50, the key input unit 31, the power switch 54, the volume switch 55, and the external device are shown. And a power supply jack 51, earphone jack 53, antenna wire 60, battery insertion cover 56, transmission frequency change switch 57, and the like.

The power switch 54 is operated in four stages " 8 times ", the first stage is the power OFF function, and the second stage or more is the power ON function (using this function, a simple microphone sound is outputted). The third stage has a function of short ECHO sound, and the fourth stage has a function of long ECHO sound.

The volume 55 adjusts the volume of the microphone sound and the accompaniment sound, and when turned clockwise, the microphone sound is output louder than the accompaniment sound, and when turned counterclockwise, the accompaniment sound is output louder than the microphone sound.

As described above, according to the portable radio accompaniment method and apparatus of the present invention, by using at least two or more FM transmission frequencies selectively, it is possible to solve the problem of overlapping with the transmission frequency of the FM broadcasting station depending on the region. The lyrics of the song you want to sing and the score after the song has the effect of displaying the LCD.

In addition, according to the portable wireless flexible accompaniment method and apparatus of the present invention, there is an effect that the user can adjust the echo length of the microphone as desired, there is a very excellent effect that can use the power of the vehicle when necessary.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, these modifications and changes should be seen as belonging to the following claims. something to do.

Claims (2)

In the portable wireless flexible accompaniment method, A first process of displaying the number and title of songs selected by the user on the liquid crystal display unit; A second process of writing and erasing the lyrics selected to the liquid crystal display according to the accompaniment when the user issues a start command after the first process; A third process of converting a voice signal by adjusting and inputting a microphone sound, which is called by a user, to a desired echo sound length based on the lyrics displayed on the liquid crystal display; A fourth process of mixing the selected accompaniment sound with a microphone sound and adjusting it to a desired volume; And a fifth step of modulating and amplifying the signal from the fourth step and transmitting the signal from one or more transmission frequencies selected from at least two transmission frequencies. In the portable wireless flexible accompaniment device, Key input means for inputting or controlling a song that a user wants to sing; Accompaniment data storage means for storing accompaniment data; Lyrics data storage means for storing the song title and song lyrics data, and Temporary storage means for temporarily storing the data read by the accompaniment data storage means and the lyrics data storage means; Liquid crystal driver means for driving to display lyrics data from said temporary storage means; LCD display means for displaying the lyrics selected by the liquid crystal driver means; Program storage means incorporating a unique program for operating the devices; Digital / analog signal conversion means for converting the digital signal from the temporary storage means into an analog signal; Central processing means for controlling the operation of each device by the signal input to the key input means; A microphone that inputs the voice of the song the user sings, Voice signal converting means for converting a voice signal from the microphone into an electrical signal and adjusting and inputting the voice signal to a desired echo length; Signal mixing and volume control means for mixing the flexible accompaniment sound from the digital / analog signal conversion means and the microphone sound from the voice signal conversion unit, and selectively adjusting the volume of the mixed sound; FM transmitting means for modulating and amplifying a signal from the signal mixing and volume adjusting means and transmitting at a selected frequency among at least two transmission frequencies; Wireless accompaniment device comprising an earphone jack provided for listening to the signal from the signal mixing and volume control means to the earphone and a car power jack provided to use the car power.