KR950005103B1 - Accompaniment built in micro speaker - Google Patents

Abstract

The microphone, with an automatic user-selected accompaniment device, includes a system controller (20). Based on the selected data, the system controller scans the accompaniment music tone memory and picks up the required data. A data latch (60) delivers thd selected data extracted from the memory. The selected digital data are fed to an D-A converter (70). A mixer combines the audio signal received from the user with the music accompaniment signal. the composite signal is then transmitted through an antenna.

Description

Microphone with automatic half cycle

1 is a detailed circuit diagram of an automatic half cycle built into a microphone according to the present invention.

2 is a block diagram of an integrated circuit for FM stereo transmission used in the present invention.

* Explanation of symbols for main parts of the drawings

10: accompaniment tune selection means 20: system controller

30: display means 40: address latch buffer means

50: accompaniment grain storage means 60: data latching means

70: digital-analog converting means 80: voice receiving means

90 synthesis means 100 amplification means

110: pre-emphasis 120: delivery means

The present invention relates to a microphone having a built-in automatic half cycle for automatically outputting a tune selected by a user among a plurality of accompaniment tunes, and more particularly, to automatically synthesize a tune selected by a user among a plurality of accompaniment tunes and a voice of a user. A microphone with a half cycle.

In general, a wireless microphone converts and transmits a user's voice signal to a frequency of an FM signal band and amplifies and outputs a user's voice signal through a speaker built in a radio or cassette tape of an FM receiver. If the apparatus is provided with means for picking up and reproducing data corresponding to the accompaniment tune from the recording medium having the accompaniment tune data recorded therein, the accompaniment tune can be synthesized and output to the user's voice signal transmitted from the wireless microphone.

In such a system that can mix and output the user's audio signal to the accompaniment tune recorded on a recording medium such as a tape, the system is controlled (for example, a tape recorder is fast-forwarded and rewinded). There is a problem in that a lot of time is consumed because the user needs to play back the desired accompaniment tune, and the recording medium, such as the tape, has a small memory capacity, so that the accompaniment tune of the song is about 15 to 20 pieces. Since it can only be recorded, there is a problem that the user can select the accompaniment tune is limited.

The automatic half period invented in view of the above problems is composed of a body, a microphone, and a display unit, and is generally installed and used in karaoke. This automatic half period is one of a large number of memory elements (ROM) for storing a large number of accompaniment tunes, and the user of the half of the accompaniment tunes stored in the memory element (ROM) to find a desired accompaniment tune of any of the memory elements (ROM) A body with a complex circuit to choose from is very bulky, difficult to move, very expensive to install, and usually used only in the installation site. In the conventional automatic semi-period, in order to mix and output the user's voice signal output from the microphone with the accompaniment tune, the microphone and the circuit structure within the body must be electrically coupled to each other, so the microphone alone accompanies the user's voice signal. There was a problem that the tunes could not be mixed.

Accordingly, the present invention has been made to solve the above-mentioned shortcomings, and an object of the present invention is to synthesize and transmit a user's voice signal and an accompaniment tune selected by a user among a plurality of accompaniment tunes. In addition, the present invention provides a microphone with a built-in automatic half-cycle that synthesizes and outputs an accompaniment tune to a user's voice signal from a speaker such as a cassette tape recorder.

In order to achieve the above object, according to the present invention, a microphone having a built-in automatic accompaniment cycle includes accompaniment tune storage means for converting a plurality of accompaniment tunes into data in a predetermined memory region, and a plurality of accompaniment stored in the accompaniment tune storage means. Accompaniment tune selection means for selecting a desired accompaniment tune among the tunes, a system controller for controlling peripheral devices by scanning data selected by the user in the accompaniment tune selection means, and an accompaniment tune selected by the user in the accompaniment tune selection means The display means for displaying the number of the externally and the output signal of the system controller for scanning the data selected by the user in the accompaniment tone selection means is determined to catch and output the data of the accompaniment tone read out from the accompaniment tone storage means. Data latching means and a digital output from the data latching means Digital-analog converting means for converting the digital data into analog data and outputting the synthesized means; synthesizing means for synthesizing the accompaniment tune signal output from the digital-analog converting means and the user's voice signal output from the voice receiving means; Characterized in that consisting of a transmitting means for transmitting the signal output from the antenna.

Hereinafter, the present invention will be described in more detail with reference to the illustrated drawings.

1 is a detailed circuit diagram of an automatic half cycle built into a microphone according to the present invention.

In FIG. 1, the accompaniment curve selection means 10 comprises switches SW1 to SW8 connected to the ports RB0 to RB7 of the kisscan pulses of the system controller 20, respectively. The switch SW1 can select the start and stop of the accompaniment curve, and when the switch SW2 is selected, the data displayed on the display means 30 to be described later can be increased, and the switch SW3 is selected. The display of the display means 30 can be down the data, and can also control the speed (TEMPO) of the accompaniment tune with the switch (SW4 ~ SW5), the key of the tune with the switch (SW6 ~ SW7) This control operation is determined by a program built into the system controller.

The system controller 20 is configured to match the operation by the clock period output from the clock pulse generating means 22 and to control the peripheral device according to the data selected by the accompaniment tone selection means 10 described above.

The display means 30 is an accompaniment in which display elements 32, 34 and 36 are connected to the output ports RC0 to RC7 of the system controller 20, respectively, and selected (selected) by the accompaniment tone selection means 10. It is configured to display the number of tunes.

The address latching buffer means 40 connects the input terminals 1D to 8D of the buffers 42 and 44 to the address output ports RC0 to RC7 of the system controller 20, and the buffer 42 ( The clock terminal CK of 44 is connected to the clock output terminals RA0 and RA1 of the system controller 20, and at the same time, the output terminals 1Q to 8Q and 4Q to 6Q of the buffers 42 and 44. Is connected to the address terminals A0 to A7 (A16 to A18) of the memory device ROM of the accompaniment tune storage means 50 to be described later, and the output terminals 1Q, 2Q and 3Q of the buffer 44. ) Is the display means for supplying / blocking power to the display elements 32, 35, 36 by the power signal output from the output terminals 1Q, 2Q, 3Q of the buffer 44. It is connected to the common power supply terminal COM of the display elements 32, 34, 36 of (30).

Accompaniment tune storage means 50 is composed of a memory device (ROM), the address terminal (A8 ~ A15) of the memory device (ROM) is connected to the output port (RC0 ~ RC7) of the system controller 20, The address terminals A0 to A7 (A16 to A18) are connected to the buffers 42 and 44 as described above, and the data output terminals D0 to D7 of the memory device ROM are connected to the system controller 20. It is connected to the data input / output fabrics RB0 to RB7.

The data latching means 60 inputs the terminals 1D to 8D to the input / output ports RC0 to RC7 outputted by the system controller 20 performing internal programs according to the accompaniment tune data read from the memory device ROM. (1P to 8P) are connected to each of the latch elements 62 and 64, each of which has a clock pulse output terminal RA2 of the system controller 20. It is connected to RA3.

The digital-analog converting means 70 is composed of D / A converters 72 and 74 connected to the output terminals 1Q to 8Q of the latch elements 62 and 64, respectively. 62) Converts the accompaniment tune data of the digital signal output from 64 to an analog signal.

The synthesizing means 90 for synthesizing the accompaniment tune signal output from the digital-analog converting means 70 and the user's voice signal output from the voice receiving means 80 is outputted from the digital-analog converting means 70. Impedance matching resistors (R17, R18) for generating a stereo signal by synthesizing the acoustic signal output from the digital-analog converting means 70 by impedance matching the accompaniment tune signal and the voice signal output from the voice receiving means 80 , R19, R20).

The amplification means 100 is connected to the pre-emphasis 110 via the coupling capacitors C11 and C12 to amplify the stereo signal output from the synthesizing means 90 to a predetermined level or more and to emphasize the high sound. have.

The transmitting means 120 includes a variable resistor between an FM stereo transmission integrated circuit 122 having a block diagram as shown in FIG. 2 and an input / output terminal OSC VREF of the integrated circuit 122. The FM transmission frequency band is controlled by connecting the VR2 and the coil L2, and the antenna ANT is connected to the output terminal RFOUT of the integrated circuit 122.

Referring to the overall operation of the present invention having the configuration as described above are as follows.

In the accompaniment tune storage means 50 used in the present invention, an accompaniment tune such as a song, a song, a hymn, and the like is data-stored in a memory device (ROM) and stored in different memory areas.

The accompaniment tune selection means 10 shown in FIG. 1 shows address data corresponding to the desired accompaniment tune reading and reproducing from the accompaniment tune storage means 50 storing the plurality of accompaniment tunes as data. When selecting (selection) using the switch SW2 (SW3), the system controller 20 scans the selection of the address data up / down switch SW2 (SW3) and executes a program to retrieve data of the result value. Since the output is performed through the input / output ports RC0 to RC7, the number (address data) of the accompaniment tune selected by the user is displayed on the display elements 32, 34 and 36 of the display means 30.

When the accompaniment tune number displayed on the display means 30 is the desired accompaniment tune number, the user turns on the switch SW1 of the accompaniment tune selection means 10. The system controller 20 then detects the switch SW1. Next, the display element 32 is connected to the input terminals 1D to 8D of the buffer 40 and the input terminals 1D to 8D of the buffer 42 from the output ports RC1 to RC2 of the system controller 20. Address data corresponding to the accompaniment tune signal displayed at (34) and (36) is output.

Next, the buffer 42 and the buffer 44 are controlled by the clock signal output from the clock output terminals RA0 and RA1 of the system controller 20. Next, from the output ports RC0 to RC7 of the system controller 20, the address data inputted to the input terminals 1D to 8D of the buffer 42 and the buffer 44 are extended from the system controller 20. The number of addresses of the address data input to the buffer 42 and the buffer 42 and the number of addresses of the semitone tune storage means 50 are matched. Next, address data is output from the output terminals 1Q to 8Q of the buffer 42 to the address terminals A0 to A7 of the accompaniment tune storage means 50, and at the same time, the output terminal 4Q of the buffer 44 is output. From 6Q), address data is output to the address terminals A16 to A18 of the accompaniment tune storage means 50.

Next, the accompaniment tune data corresponding to the accompaniment tune selected by the user from the data output terminals D0 to D7 of the accompaniment tune storage means 50 are output to the input / output ports RB0 to RB7 of the system controller 20. do.

As described above, when data corresponding to the user's music selected by the user in the memory device (ROM) is supplied from the accompaniment tune storage means 50 to the system controller 20, the output terminal RC0 of the system controller 20 is provided. Data values obtained by the internal program of the system controller 20 from ˜RC7 are input to the input ports 1D to 8D of the latch element 32 of the data latch means 60 and the latch element 64. Output to ports 1P-8P.

The latch elements 62 and 64 latch the data supplied to the input ports 1D to 8D and the input ports 1P to 8P, that is, the accompaniment tune signal by the clock signal supplied to the clock terminal CK0. -To the D / A converters 72 and 74 of the analog conversion means 70. The clock terminal CK of the latch elements 62 and 64 is provided with a clock terminal RA2 of the system controller 20. In RA3, the output signal is supplied with a clock signal, so the latch operation of the latch elements 62 and 64 is controlled by the system controller 20. FIG.

In this way, the digital output signals of the latch elements 62 and 64 whose latch operation is controlled by the system controller 20 are supplied to the D / A converters 72 and 74 of the digital-analog converting means 70 to provide analog. After being converted into a signal, a semitone tune signal is output from the digital-analog converting means 70 to the synthesizing means 90.

On the other hand, the other input terminal to the synthesizing means 90 is supplied with the user's voice signal received from the microphone (MIC) of the voice receiving means (80).

Next, in the synthesizing means 90, the accompaniment tune signal output from the digital-analog converting means 70 by the impedance matching resistors R17, R18, R19R, and R20, and the voice receiving means 80, respectively. The output audio signal is impedance matched. Then, the accompaniment tune signal output from the digital-analog converting means 70 and the speech signal output from the voice receiving means 80 are synthesized at the connection point A and the connection point B, thereby connecting the connection point A and the connection point ( In B) a stereo signal is generated.

Next, a stereo signal is output from the connection point A and the connection point B of the combining means 90 to the amplifying means 100.

As described above, when the accompaniment tune and the user's voice signal are synthesized in the synthesizing means 90 and supplied to the amplifying means 100, the amplifying means 100 amplifies the input synthesized signal to a predetermined level or more and a coupling capacitor. It supplies to the pre-emphasis 110 through (C2) and (C3).

In the pre-emphasis 110, a synthesized signal with high emphasis is supplied to the R and L channel input terminals (L-CHinput) of the FM stereo transmission integrated circuit 122 of the transmitter 120. It is converted to a carrier band (75-108 MHZ) frequency and then transmitted through an antenna (ANT) connected to the FM output terminal (RF OUT).

In this way, the synthesized signal (accompaniment tune + user song) transmitted from the antenna ANT is received by the FM receiver, that is, the receiver of the FM radio, and the synthesized sound, that is, the accompaniment and the user's song sound, is output through the speaker of the FM radio.

When a user selects a desired accompaniment tune while sampling and storing a plurality of accompaniment tunes according to the present invention operating as described above, a plurality of accompaniment tunes stored in the memory element are selected. It reads only the accompaniment tone and converts it into an analog signal, and synthesizes it with the user's voice signal input to the microphone and transmits it to the FM broadcasting frequency band. Therefore, the accompaniment tune and the user's voice are mixed through the speaker of FM radio used in homes or cars. There is an advantage that you can hear old songs.

Claims (1)

Accompaniment tune storage means for converting a plurality of accompaniment tunes into data in a predetermined memory area, accompaniment tune selection means for selecting a desired accompaniment tune among a plurality of accompaniment tunes stored in the accompaniment tune storage means, and the accompaniment. A system controller for controlling a peripheral device by scanning data selected by the user in the tune selection means, display means for displaying the number of the accompaniment tune selected by the user in the accompaniment tune selection means externally, and the user in the accompaniment tune selection means Data latch means for latching and outputting the data of the accompaniment tune read out from the accompaniment tune storage means, the address being determined by the output signal of the system controller scanning the selected data, and digital data output from the data latch means as analog data. Digital-to-analog side that is converted and output Means for synthesizing the accompaniment tune signal output from the digital-analog converting means and the user's voice signal output from the voice receiving means, and sending means for transmitting the signal output from the synthesizing means through an antenna. Microphone with automatic half-cycle characterized in that.