KR20030070444A - Encoder Mike Comprising Recoding Function and Method for Applying Recorded Data in Encoder Mike - Google Patents

Abstract

PURPOSE: An encoder microphone having a record function and a method for operating recorded data are provided to regenerate and edit audio data by converting inputted audio signals to the audio data and storing the converted audio data. CONSTITUTION: An encoder microphone having a record function includes a power supply portion(505), a switch portion(510), an audio input portion(520), an amplification portion(530), an A/D conversion portion(540), an encoder portion(550), a microcomputer(560), a memory portion(570), and a data communication portion(580). The switch portion generates a switching signal to select a function mode. The audio input portion converts an audio signal to an electric signal. The amplification portion amplifies the electric signal of the audio input portion. The A/D conversion portion converts the amplified signal to digital data. The encoder portion compresses the digital data as an audio data file. The microcomputer is used for receiving the switching signal, controlling each element according to the selected mode, commanding the encoder portion to encode the audio signal, transferring the encoded signal to a predetermined path, and transmitting the audio data. The memory portion stores the audio data. The data communication portion interfaces the communication data between the microcomputer and a personal computer.

Description

Encoder Mike Comprising Recoding Function and Method for Applying Recorded Data in Encoder Mike}

The present invention relates to an encoder microphone having a recording function and a method of operating recorded data. More particularly, the present invention provides a recording function for capturing an audio signal input from an external source and storing it as specific file data (for example, an mp3 file). File data stored in one encoder microphone and encoder microphone can be downloaded to a PC using a communication port (e.g., USB port, etc.), and then the corresponding data can be played, edited and stored on a CD, or the downloaded file data can be stored on The present invention relates to a method of operating data recorded in an encoder microphone that stores the data in a database of a server and provides corresponding file data upon user's request.

In general, the field of public address (PA) is used and utilized throughout our daily lives. The PA field is a general term for expanding a sound or a sound, and the meaning field encompassed by the PA field is very broad. The field of PA can be said to cover all this (whatever sound is amplified), from general on-premises broadcasts to announcements of subway stations that are commonly heard, as well as singer performances at concerts. PA's original purpose is to electrically expand the voice or sound on the stage or podium that is basically inaudible in speeches, events, etc., and make it heard as clearly as possible to the audience. The PA system consists of microphones and speakers, and the role of the microphone to amplify the dual audio signal is very important.

Microphones are classified into wired microphones and wireless microphones according to the transmission method, and are classified into dynamic, condenser, ribbon, and ceramic microphones according to their components and shapes, and may be classified into directional and omnidirectional microphones depending on the purpose of the microphone. do. Such microphones are used in various fields such as broadcasting stations, classrooms, churches or temples, karaoke, and courts.

However, these conventional microphones only play a role in amplifying the sound source and supporting the output of the sound through the speaker, so that important contents (e.g., interview contents, lecture contents, sermon contents, court testimony contents, In order to record a song sung by a guest in a karaoke room, it is necessary to have a separate recording device (eg, a cassette recorder, etc.) or to perform a separate action such as recording in shorthand and re-translating. In addition, there is a problem that the noise is often synthesized with the sound source to be recorded and thus the sound source cannot be read, depending on the surrounding environment at the moment of being input into the microphone during the recording process. In particular, as a part of the service provided by karaoke, the service of recording a song sung by a customer on a cassette tape is widely used, but the service provided by the cassette tape is expensive and inconvenient to use due to the complexity of the system. There is a problem.

Accordingly, the present invention has been made to solve the conventional problems as described above, the first object of the present invention is to add an audio recording circuit to a general microphone (including wired / wireless microphone) and to input the audio signal to the microphone The present invention provides an encoder microphone that converts A / D and stores it in a small memory (eg, flash memory) through digital compression.

A second object of the present invention is to implement an encoder microphone for storing high-quality audio data by implementing a mixture of a directional microphone for capturing a voice band and an omnidirectional microphone for capturing a specific band (for example, a song accompaniment or a background sound). To provide.

It is a third object of the present invention to provide a method of operating data recorded in an encoder microphone for downloading audio data stored in an encoder microphone to a PC through a communication port, and playing, editing, and storing CDs using an application program.

A fourth object of the present invention is to transmit the audio data downloaded to a PC to a web server of a specific site using the Internet, and recorded in the encoder microphone that provides the data when the user requests the database by the database of the transmitted audio data It is to provide a method of operating data.

A fifth object of the present invention is the data recorded in an encoder microphone providing a microphone type audio player function (that is, an mp3 player function) that can immediately verify the recorded content by demodulating the digital audio data stored in the encoder microphone into analog audio data. To provide a way of operating.

1a to 1c are perspective views showing the external configuration of the encoder microphone according to the present invention,

2 is a connection state diagram of the encoder microphone and the USB cable according to the present invention,

3 is a configuration and connection state diagram of a first embodiment of the encoder microphone holder for downloading,

4 is a configuration and connection state diagram of a second embodiment of the encoder microphone holder for downloading,

5A is a block diagram illustrating an internal configuration of an encoder microphone according to a first embodiment of the present invention.

5B is a block diagram illustrating an internal configuration of an encoder microphone according to a second embodiment of the present invention.

6 is a block diagram showing an internal configuration of an encoder microphone according to a third embodiment of the present invention.

7 is an overall configuration diagram of an operating system for utilizing data recorded in an encoder microphone according to the present invention,

8 is a flowchart illustrating an overall operating method of an encoder microphone according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

100, 500, 600: encoder microphone 200: USB cable

510, 605: switch unit 520, 610, 625: audio input unit

530, 615, 630: amplifier 540, 620, 635: A / D converter

550, 645: encoder 560, 650: microcomputer

570, 655: memory unit 580, 660: data communication unit

640: mixer section 585, 665: decoder section

590 and 670: D / A conversion unit 595 and 675: display unit

According to an aspect of the present invention, there is provided a microphone for amplifying and outputting a sound source, comprising: a power supply unit supplying power required for operation; A switch unit for generating a switching signal for selecting a function mode; An audio input unit for converting an audio signal input from the outside into an electrical signal; An amplifier connected to the audio input unit and amplifying the audio signal converted into an electrical signal by the audio input unit; An A / D converter connected to the amplifier and converting the signal amplified by the amplifier into processable digital data; An encoder unit coupled to the A / D converter, for compressing the digital data converted by the A / D converter into an audio data file of a predetermined format; It is connected to the switch unit and the encoder unit, and controls each unit to receive the switching signal input from the switch unit to perform the selected mode, and to transmit the encoding start signal to the encoder unit when the recording mode is input to encode the input audio signal A microcomputer for instructing and controlling to transmit the encoded audio data to a designated path, and for totally controlling to transmit the stored audio data in an external request; A memory unit connected to the encoder unit and the microcomputer, for storing audio data transmitted from the encoder unit, and applying the data to the microcomputer according to an extraction command of the microcomputer; It is connected to the microcomputer and characterized in that it comprises a data communication unit for interfacing the communication data between the microcomputer and the PC according to a certain communication standard.

The present invention also provides a microphone for amplifying and outputting a sound source, comprising: a power supply unit for supplying power for operation; A switch unit for generating a switching signal for selecting a function mode; A first audio input unit including a directional microphone and converting an audio signal input from the outside into an electrical signal; A second audio input unit including an omnidirectional microphone and converting an audio signal input from the outside into an electrical signal; First and second amplifiers connected to the first and second audio inputs, respectively, for amplifying an audio signal converted by the first and second audio inputs into an electrical signal; First and second A / D converters connected to the first and second amplifiers, respectively, for converting the signals amplified by the first and second amplifiers into processable digital data; A mixer unit connected to the first and second A / D converters and mixing and adjusting respective audio data applied from the first and second A / D converters; An encoder unit coupled to the mixer unit for compressing the audio data mixed by the mixer unit into an audio data file of a predetermined format; It is connected to the switch unit and the encoder unit, and controls each unit to receive the switching signal input from the switch unit to perform the selected mode, and to transmit the encoding start signal to the encoder unit when the recording mode is input to encode the input audio signal A microcomputer for instructing and controlling to transmit the encoded audio data to a designated path, and for totally controlling to transmit the stored audio data in an external request; A memory unit connected to the encoder unit and the microcomputer, for storing audio data transmitted from the encoder unit, and applying the data to the microcomputer according to an extraction command of the microcomputer; It is connected to the microcomputer, and characterized in that it comprises a data communication unit for interfacing the communication data between the encoder microphone and the PC according to a certain communication standard.

In addition, the present invention comprises the steps of storing an audio signal input from the outside as an audio data file of a predetermined format using an encoder microphone having a recording function; Downloading, playing and editing the audio data file stored in the encoder microphone to a PC; Transmitting the audio data file to a web server; And providing a corresponding data file at the request of a specific person who has performed a security procedure by databaseting the audio data file for each operator or user.

Hereinafter, preferred embodiments of an encoder microphone having a recording function and a method of operating recorded data according to the present invention will be described in detail with reference to the accompanying drawings.

1A and 1B are perspective views showing an external configuration of the encoder microphone 100 according to the present invention, and FIG. 1A shows a front side of the encoder microphone 100, and FIG. 1B shows a back side of the encoder microphone 100. will be. The encoder microphone 100 has the same appearance as a general microphone, except that the mode selection switch 110 is configured in three stages to select a function of the encoder microphone, and the audio data stored in the encoder microphone 100 is stored in a PC or the like. USB port 120 for downloading is further added. Here, the mode implemented in the encoder microphone 100 has a normal mode and a recording mode, the normal mode is a function mode for performing the function of the conventional general microphone, the recording mode is to store the input audio data in the memory This is the function mode. The location of the USB port 120 shown in FIG. 1B is merely exemplary, and may be freely changed according to a designer's choice. In addition, when the USB port 120 is not used, a protective cap of an elastic member (eg, rubber) may be attached to the USB port 120 in order to prevent poor contact of the USB port 120 due to foreign matter such as dust. Implement to be coupled to the outer surface. Therefore, when downloading the audio data stored in the encoder microphone 100 by a PC or the like, the protective cap 130 is separated from the encoder microphone 100 and used. Additionally, in order to prevent the loss of the protective cap 130, one side of the protective cap 130 may be integrally coupled to one side of the opening for accommodating the USB port 120 to be opened and closed. In addition, a jack insertion port 140 for connecting with an earphone or a headset is located at the bottom of one side of the encoder microphone so that the contents recorded in the encoder microphone 100 can be immediately heard. In FIG. 1B, although the USB port 120 is used to download audio data stored in the encoder microphone 100, the IEEE 1394 port may be used.

1C is a perspective view showing another embodiment of the encoder microphone 100 according to the present invention, in which an LCD display function and an mp3 player function are added to the encoder microphone 100 of FIGS. 1A and 1B. As shown in Figure 1c, the LCD 150 for displaying the current state and the input key signal of the encoder microphone 100 to be confirmed from the outside, select the menu for the general mode and function mode selection, mp3 player function execution, etc. Menu key 160a for executing, playback key 160b for executing the recorded audio data, pause key 160c for pausing the reproduced audio data, and fast forward for searching the recorded audio data at high speed. The key 160d and the rewind key 160e are further added. Therefore, the user can easily operate and check the function mode (ie, the normal mode, the recording mode) and the current state of the encoder microphone 100, and immediately record audio by connecting an earphone or a headphone to the jack inlet 140. You can listen to data.

Power required for the operation of the encoder microphone 100 shown in FIGS. 1A to 1C may be provided through a connected USB or IEEE 1394 port, or may be implemented to receive power by receiving a battery in the encoder microphone 100 itself. In addition, a separate speaker may be provided to output recorded audio data.

2 is a connection state diagram of the encoder microphone 100 and the USB cable 200 according to the present invention, which is a connection state diagram for downloading audio data recorded and stored in the encoder microphone 100 to a PC. The USB cable 200 is composed of a microphone side connection port 200a for connecting to the encoder microphone 100 and a PC side connection port 200b for connecting to a PC, and the USB cable 200 has four wires. Two of them are used to supply power and the other two are used to transmit data. Although FIG. 2 illustrates that a USB interface method is used as a method for downloading recorded audio data to a PC, the IEEE 1394 interface method may be used. In addition, when the user wants to listen to the audio data recorded using the mp3 player function on the fly, the connection jack 260 of the earphone or headphone 250 may be inserted into the jack insertion hole 140 to listen to the recorded audio data. The selection of the mp3 player function and the menu selection can be performed based on the exemplary diagram of the encoder microphone 100 shown in FIG. 1C.

3 is a configuration and connection state diagram of the first embodiment of the encoder microphone cradle for downloading (300). The encoder microphone holder 300 is composed of a pedestal 310, a connection plate 320, an elastic hook 330, and a USB cable 340. Here, the USB cable 340 may be replaced with an IEEE 1394 cable including a microphone connection port and a PC connection port.

The pedestal 310 has a hollow cylindrical shape in which an insertion hole 315 is formed at one side of the upper end, and a locking pin (not shown) is formed in the insertion hole, and the upper and lower sides are opened. The connection plate 320 has a locking groove 325 implemented to be coupled with the locking pin is formed at the lower end and the microphone side connection port 327 implemented to be connected to the USB port 120 of the encoder microphone 100 protrudes from the upper end. Formed. The connection plate 320 is configured of an elastic member to be coupled to the USB port 120 of the encoder microphone 100 implemented in various forms. The elastic locking ring 330 is located on one side of the cylinder inner side, and is configured in a spring structure to accommodate the encoder microphone 100 having different thicknesses. The USB cable 340 includes a PC side connection port 340a and is connected to the microphone side connection port 327 of the connection plate 320 through the pedestal 310.

4 is a configuration and connection state diagram of a second embodiment of the encoder microphone cradle for downloading (400). Encoder microphone cradle 400 is an encoder microphone cradle 400 is a pedestal 410, the lower end is vertically coupled to the upper side of the pedestal 410 and bent in the horizontal direction from the upper side U-shaped microphone hanger 420 Is formed on the support 430, the microphone side connection port 440a is inserted into the USB port 120 of the encoder microphone 100 is connected to one side and the ring hole formed on the other side is inserted into the support 430 can be moved up and down It consists of a port connection portion 440 is fixed by the fixing screw 450 and the PC side connection port 470a connected to the USB cable 470 on one side of the pedestal 410. Here, the microphone side connection port 440a of the port connection part 440 and the USB cable 470 communicate with a predetermined position of the support 430 (for example, a portion where the support 430 and the port connection part 440 are coupled). It is connected along the connection groove 430a. The microphone side connection port 440a includes a power terminal required for the operation of the encoder microphone 100.

5A is a block diagram illustrating an internal configuration of an encoder microphone 500 according to a first embodiment of the present invention. The encoder microphone 500 according to the first embodiment includes a power supply unit 505, a switch unit 510, and audio. It includes an input unit 520, an amplifier 530, an A / D converter 540, an encoder unit 550, a microcomputer 560, a memory unit 570, and a data communication unit 580. Since the configuration of the encoder microphone 500 for the mode is the same as the general microphone, the configuration of the encoder microphone 500 for the recording mode will be described mainly.

The power supply unit 505 supplies power required for the operation of the encoder microphone 500 and includes a general battery and a rechargeable battery.

The switch unit 510 generates a switching signal for selecting a function mode (eg, a normal mode or a recording mode). Switch unit 510 in the present invention uses a three-stage switch element for switching any one of the microphone off, normal mode, recording mode.

The audio input unit 520 converts an audio signal input from the outside into an electrical signal. The audio input unit 520 is placed between a dynamic microphone, a diaphragm, and a fixed electrode using a principle in which a diaphragm integrally formed with a voice coil in a magnetic field constituted by a magnet and a yoke is moved by sound pressure so that a speed and a proportional voltage are generated in the coil. When a high electric field is applied to a condenser microphone using a principle of converting the sound pressure delivered to the diaphragm into an electrical signal due to a change of charge, that is, a capacitance, an electric charge induced on the surface is permanently preserved even after the electric field is removed. Electric condenser microphones using electric phenomena, and the like, and include both directional microphones (including unidirectional, bidirectional microphones) and omnidirectional microphones.

The amplifier 530 is connected to the audio input unit 520 and amplifies the audio signal converted by the audio input unit 520 into an electrical signal. Since the audio signal transmitted through the audio input unit 520 is a weak signal, it is necessary to amplify the signal. That is, the amplifier 530 expands the voltage or power of the signal (that is, the audio signal) applied to the input side, and outputs a large energy change to the output side. If the encoder microphone 500 is to be used in the normal mode, the audio signal output from the amplifier 530 may be connected to an existing sound system. The existing acoustic system and the encoder microphone 500 may be connected by wire or wireless (eg, RF).

The A / D converter 540 is connected to the amplifier 530 and converts the signal amplified by the amplifier 530 into processable digital data.

The encoder 550 is connected to the A / D converter 540 and compresses digital data converted by the A / D converter 540 into a data file (eg, an mp3 file) in MPEG format. Perform. The encoder unit 550 is composed of a part for encoding the converted digital data, a part for packetizing, and a part for multiplexing the audio streams thus produced, and is composed of one chip. One sector is generally composed of one pack and one packet, and the pack header includes a system reference together with multiplexing rate information when the encoder unit 550 multiplexes an audio stream. Provides time information (SCR: System Clock Reference). The encoded compressed file is transferred to the memory unit 570 by the control signal of the microcomputer 560.

The microcomputer 560 is connected to the switch unit 510 and the encoder unit 550, and controls each component to perform a selected mode by receiving a switching signal input from the switch unit 510. Send a control signal (i.e., encoding start signal) to the unit 550 to instruct to encode the input audio signal, and control to transmit the encoded compressed data to a designated path (i.e., the memory unit), and stored at an external request. It performs overall control to transmit compressed data. The microcomputer 560 of the present invention uses an 8-bit microcomputer because it performs a simple function.

The memory unit 570 is connected to the encoder unit 550 and the microcomputer 560, stores the compressed data transmitted from the encoder unit 550, and stores the data according to the extraction command of the microcomputer 560. It acts as a). The memory unit 570 is implemented as a flash memory (sometimes referred to as a "flash ROM") of a predetermined capacity (for example, 32M or 64M). The flash memory is a nonvolatile memory whose contents are preserved even without a power supply. You can delete or rewrite it. According to the type of the microcomputer 560, a flash memory may be embedded in the microcomputer 560.

The data communication unit 580 is connected to the microcomputer 560, and functions to interface communication data between the encoder microphone and the PC according to a predetermined communication standard. In general, the data communication unit 580 may use various types of interface (eg, USB interface and IEEE 1394 interface) communication standards, but the data communication unit 580 is generally implemented using a widely used USB interface communication standard. The data communication unit 580 to be applied to the present invention preferably has a maximum transmission rate of 12 MHz, and includes USB protocol handling, handling of USB device states, bit streaming, and bit stuffing functions. It doesn't need driver for installation like interface, and it doesn't need to setup because it recognizes various I / O devices and peripherals automatically. You don't even have to reboot your computer to change the settings of one peripheral, and you can connect or remove peripherals while the system is in use. When the data communication unit 580 is connected to the PC, the microcomputer 560 cuts off the connection with the power supply unit 505 and switches to use the power applied from the data communication unit 580.

In addition, the encoder microphone 500 may further include a memory tester which is connected to the memory unit 570 and checks the remaining memory, and a function of displaying the memory information on the display unit 595, and the user can confirm the selected mode. It may further include a notification means (eg, LED) for displaying so that.

5B is a block diagram illustrating an internal configuration of the encoder microphone 500 according to the second embodiment of the present invention. The key input unit is used to add an mp3 player function and a display function to the encoder microphone 500 according to the first embodiment. 515, a decoder 585, a D / A converter 590, and a display 595.

The encoder microphone 500 according to the second embodiment externally checks the mp3 player function, the current state of the encoder microphone 500, and the progress state of the input key signal with the encoder microphone 500 according to the first embodiment. In addition to the display function to support the mp3 player function, the key input unit 515, decoder unit 585, D / A conversion unit 590, speakers, headphones or earphones further comprises a display The display unit 595 is further provided to implement a function. Here, since each component for implementing the mp3 player function is the same as the components of the general mp3 player, it will not be described in detail, and the display unit 595 preferably uses an LCD.

6 is a block diagram showing an internal configuration of an encoder microphone 600 according to a third embodiment of the present invention. The encoder microphone 600 according to the third embodiment includes a power supply unit 602, a switch unit 605, The first audio input unit 610, the first amplifier 615, the first A / D converter 620, the second audio input unit 625, the second amplifier 630, the second A / D converter ( 635, a mixer 640, an encoder 645, a microcomputer 650, a memory 655, and a data communication unit 660, and a key input unit for adding an mp3 player function and a display function. 607, a decoder 665, a D / A converter 670, and a display 667 are further provided. Since the configuration of the encoder microphone 600 for the normal mode is the same as that of the general microphone, the configuration of the encoder microphone 600 for the recording mode will be mainly described. In addition, since the encoder microphone 600 according to the third embodiment has a similar configuration to the encoder microphone 500 according to the first and second embodiments, the same parts will be omitted and only different parts will be described.

The part of the encoder microphone 600 according to the third embodiment is different from the encoder microphone 500 according to the first and second embodiments, and the audio input unit implements the directional microphone and the omnidirectional microphone separately so that the audio signal is input from each microphone. Is to mix and encode. Thus, the first audio input 610 uses a directional microphone to capture a specific band of audio signals (eg, a human voice signal), and the second audio input 625 uses an omnidirectional microphone to audio in all bands. Capture the signal. Of course, the first audio input unit 610 may be implemented as a non-directional microphone, and the second audio input unit 625 may be implemented as a directional microphone.

The audio signals input to the respective audio input units 610 and 625 are amplified and digitally converted through the respective amplifiers 615 and 630 and the A / D converters 620 and 635. The mixer unit 640 is connected to the first and second A / D converters 620 and 635, and mixes respective audio signals applied from the first and second A / D converters 620 and 635. It is responsible for coordinating. The mixed and adjusted data in the mixer 640 is applied to the encoder 645 and encoded. Other configurations and functions are the same as those of the encoder microphone 500 according to the first and second embodiments.

The encoder microphone 500 according to the first and second embodiments is useful when recording only a voice signal (for example, to record lecture contents, coverage contents, sermon contents, etc.), and encoder according to the third embodiment. The microphone 600 is useful when recording all the mixed audio signals (eg, when recording both the accompaniment of the song and the voice signal in karaoke).

7 is an overall configuration diagram of an operation system 700 for utilizing data recorded in an encoder microphone according to the present invention, the operation system 700 is an encoder microphone 100, an operator PC 710, a storage medium 715. ), The Internet 720, the web server 730, the database 740, and the user PCs 750a, 750b, ..., 750z.

The encoder microphone 100 encodes and stores the input audio signal, and includes the encoder microphones 500 and 600 shown in FIGS. 5 and 6.

The operator PC 710 is connected to the encoder microphone 100 through a communication cable (for example, a USB cable) and plays a role of downloading, playing, and editing audio data stored in the encoder microphone 100. Therefore, the operator PC 710 should be equipped with an application program for playing and editing the downloaded audio data, the application program is provided in the form of a CD with the encoder microphone 100, USB cable, holder. The application may download, play, edit, and store CD data of the encoder microphone 100, as well as upload the data to the web server 730 using the Internet 720. When transmitting the downloaded audio data to the web server 730 is programmed to transmit including the ID for identifying the data.

The storage medium 715 is connected to the operator PC 710 and records audio data downloaded by an application program mounted on the operator PC 710 on a storage medium of a certain type (eg, CD, cassette tape, etc.). It can perform a function. In general, in order to record audio data on a CD, a CD writer should be mounted on the operator PC 710.

The web server 730 is connected to the operator PC 710 and the user PCs 750a, 750b, ..., 750z through the Internet 720, and includes a server program and a processing program. The web server 730 is a server hardware whose server name is registered in a domain name server, and allows general Internet users to search for information in a URL format (for example, http://www.nextway.co.kr). The web server program must be installed and running.

The server program is a program that is installed and executed to process information retrieval requests in the form of URLs transmitted from operator and user PCs. The server programs include Unix Server NCSA, CERN, Apache, JIGSAW, Windows NT Server IIS, and Windows NT and Windows 95/98 Server WebSite.

A processing program is a program that supports server-client interactions in order to handle information requests of the operator and the user (for example, uploading data of the user and downloading data of the user). It uses a standardized way of communicating information, called the Gateway Interface or Active Sever Page. The information transmitted to the web server 730 in accordance with the CGI and ASP format is processed by the CGI and ASP programs installed in the web server 730 to interpret the information request of the operator and the user according to the CGI and ASP standard format.

The web server 730 classifies the audio data uploaded from the operator PC 710 by the operator and the ID and stores the audio data in the database 740. Web server 730 is preferred to operate the database to give a large amount of storage space to the operator, and to give a relatively small amount of storage space to the operator by discriminating the storage capacity for each operator and user. If the user has the encoder microphone 100 in which the audio data is stored, the user can play and edit the same by installing a specific application program on his PC. However, audio data recorded at a specific place (eg, karaoke) should be connected to the web server 730 to download, reproduce and edit the data. To this end, the operator of the encoder microphone 100 must precede the process of uploading the stored audio data to the web server (730). In addition, the web server 730 may support to store the audio data according to the type of audio data by providing an album function that can separately store the audio data for each user.

Hereinafter, an operation relationship of an encoder microphone having a recording function and a method of operating recorded data according to the present invention will be described in more detail with reference to the accompanying drawings.

8 is a flowchart illustrating an overall operating method of an encoder microphone according to the present invention, and assumes that an operator PC is provided with an application program capable of downloading, playing, and editing audio data stored in an encoder microphone. In addition, the description of the operation method of the encoder microphone will be described mainly with respect to the encoder microphone according to the first and second embodiments, and the encoder microphone according to the third embodiment will be additionally described.

First, the encoder microphone user sets the switch unit of the encoder microphone to the recording mode. At this time, the microcomputer of the encoder microphone receives the switch signal to determine the recording mode, and sends an encoding start signal to the encoding unit to prepare to encode the input audio signal.

The audio input unit of the encoder microphone captures an audio signal input from the outside (S810). Here, the audio input includes a directional microphone and an omnidirectional microphone. The audio signal captured through the audio input unit is amplified by the amplifier and converted into digital data through the A / D converter (S820). The converted digital data is compressed into an MPEG format (for example, mp 3 file format) by the encoding unit (S830). In the case of using the encoder microphone according to the third embodiment, the audio signal input to each audio input unit is amplified and digitally converted, and the converted digital data is mixed through the mixer unit and transmitted to the encoder unit. . The encoded data is applied to the memory unit under the control of the microcomputer, and the memory unit stores the applied audio data (S840).

Next, the operator or user connects the encoder microphone with his PC using a USB cable to play and edit the audio data stored in the encoder microphone, and requests a download using an application program. Data exchange between the encoder microphone and the operator's or user's PC is via the data communication unit. The microcomputer of the encoder microphone receives a signal transmitted through the data communication unit to determine whether there is a request for audio data stored from the outside (S850). As a result, if there is no audio data request from the outside, and waits, if there is an audio data request, the microcomputer extracts the audio data stored in the memory unit and downloads the audio data to the PC through the data communication unit (S860).

The operator uses the application program to play, edit and record the corresponding audio data on the storage medium (S870). Since a general PC includes a function for converting an mp3 file into a wav file or recording a cassette tape, a conversion program for performing such a function may be included in an application provided by the present invention. In addition, in order to record audio data on a CD, a CD writer and a recording program must be mounted on the operator's PC.

Next, if the operator wants to upload the audio data to the web server, the operator may select a file upload menu from the set menu and upload the audio data to the web server through the Internet to provide the audio data to a specific person. For example, if a karaoke owner uploads a song sung by a guest to a web server using the encoder microphone of the present invention, the guest can later access the web server and download the corresponding audio data. To this end, the karaoke owner may be provided with a guest's ID or may issue a new ID to the guest who has no ID. In addition, in order to solve a security problem when uploading audio data, it is desirable to include an operator ID and a user ID in the audio data to be uploaded.

The application determines whether or not to upload specific audio data (S880), and if desired, uploads the corresponding audio data to a web server through the Internet (S890). As described above, the transmission of the audio data includes the ID of the sender and the ID of the user so that the audio data is transmitted only to the specified person.

The web server stores the transmitted audio data in a database for each operator and user (S895). A specific user who wants to receive audio data stored in DB can download the data through a certain security procedure. In addition, the web server preferably provides a convenient user interface for the operator or user to easily perform operations for uploading or downloading audio data.

In addition, the encoder microphone includes a mp3 player function to restore digital audio data stored in the memory unit of the encoder microphone through the decoder unit, and convert the restored digital audio data into analog audio data through the D / A converter. You can then listen directly to the field via your own speakers or headphones (or earphones).

The above description is only for explaining one embodiment, and the present invention is not limited to the above-described embodiment and can be variously changed within the scope of the appended claims. For example, the shape and structure of each component specifically shown in the embodiments of the present invention may be modified.

As described above, according to the encoder microphone having a recording function and the method of operating the recorded data according to the present invention, an audio recording circuit is added to a general microphone (including wired / wireless microphone) and the audio signal input to the microphone is A /. By implementing an encoder microphone that converts D and stores it in a memory (eg, a flash memory), there is an effect that it is possible to play back and edit audio data stored in the encoder microphone later.

In addition, the present invention has the effect of uploading the audio data stored in the encoder microphone to the web server, and can provide the corresponding audio data at the request of a specific user.

In addition, the present invention can be used to reproduce the contents (e.g., interviews, lectures, sermons, court testimony, songs sung by guests in karaoke, etc.) without a separate device (e.g., recording device). There is an effect that can be recorded in the field.

In addition, the present invention has an effect of demodulating the digital audio data stored in the encoder microphone into analog audio data by adding an mp3 player function to the encoder microphone, so that the recorded contents can be immediately confirmed.

Claims (12)

In the microphone to expand and output the sound source, A power supply unit supplying power required for operation; A switch unit generating a switching signal for selecting a function mode; An audio input unit converting an audio signal input from the outside into an electrical signal; An amplifier connected to the audio input unit and amplifying an audio signal converted into an electrical signal by the audio input unit; An A / D converter connected to the amplifier and converting the signal amplified by the amplifier into processable digital data; An encoder unit coupled to the A / D converter, for compressing the digital data converted by the A / D converter into an audio data file of a predetermined format; An audio signal which is connected to the switch unit and the encoder unit and controls each component to receive a switching signal input from the switch unit to perform a selected mode, and sends an encoding start signal to the encoder unit when a recording mode is input. A microcomputer for instructing to encode the MPC, controlling to transmit the encoded audio data to a designated path, and controlling the overall transmission to transmit the stored audio data upon external request; A memory unit connected to the encoder unit and a micom, storing the audio data transmitted from the encoder unit, and applying the data to the micom according to an extraction command of the micom; And a data communication unit connected to the microcomputer and interfacing communication data between the microcomputer and the PC according to a predetermined communication standard. The method of claim 1, a key input unit for generating various key signals for performing an mp3 player function and a display function; A decoder unit connected to the microcomputer and the memory unit to restore compressed audio data applied from the memory unit by a control signal of the microcomputer; A D / A converter connected to the decoder and converting the audio data restored by the decoder into an analog signal; And And a display unit connected to the microcomputer, the display unit configured to display various data regarding the current state applied from the microcomputer and the progress state of the input key signal. In the microphone to expand and output the sound source, A power supply unit supplying power required for operation; A switch unit generating a switching signal for selecting a function mode; A first audio input unit including a directional microphone and converting an audio signal input from the outside into an electrical signal; A second audio input unit including an omnidirectional microphone and converting an audio signal input from the outside into an electrical signal; First and second amplifiers connected to the first and second audio inputs, respectively, for amplifying an audio signal converted into an electrical signal by the first and second audio inputs, respectively; First and second A / D converters connected to the first and second amplifiers, respectively, and converting signals amplified by the first and second amplifiers into processable digital data; A mixer unit connected to the first and second A / D converters and mixing and adjusting respective audio data applied from the first and second A / D converters; An encoder unit connected to the mixer unit and compressing the audio data mixed by the mixer unit into an audio data file of a predetermined format; An audio signal which is connected to the switch unit and the encoder unit and controls each component to receive a switching signal input from the switch unit to perform a selected mode, and sends an encoding start signal to the encoder unit when a recording mode is input. A microcomputer for instructing to encode the MPC, controlling to transmit the encoded audio data to a designated path, and controlling the overall transmission to transmit the stored audio data upon external request; A memory unit connected to the encoder unit and the micom, storing the audio data transmitted from the encoder unit, and applying the data to the micom according to the extraction command of the micom; And a data communication unit interconnected with the microcomputer and interfacing communication data between the encoder microphone and the PC according to a predetermined communication standard. The method of claim 3, a key input unit for generating various key signals for performing an mp3 player function and a display function; A decoder unit connected to the microcomputer and the memory unit to restore compressed audio data applied from the memory unit by a control signal of the microcomputer; A D / A converter connected to the decoder and converting the audio data restored by the decoder into an analog signal; And And a display unit connected to the microcomputer, the display unit configured to display various data regarding the current state applied from the microcomputer and the progress state of the input key signal. The method of claim 1, wherein the audio input unit An encoder microphone having a recording function, characterized in that it comprises a directional microphone and an omnidirectional microphone. The encoder microphone according to claim 1 or 3, wherein the audio data file compressed by the encoder unit is an mp3 file. 4. The encoder microphone according to claim 1 or 3, wherein the communication standard of the data communication unit uses any one of a USB interface and an IEEE 1394 interface standard. (a) storing an audio signal input from the outside into an audio data file of a predetermined format using an encoder microphone having a recording function; (b) downloading and playing back and editing the audio data file stored in the encoder microphone to a PC; (c) transmitting the audio data file to a web server; And (d) operating the data recorded in the encoder microphone, comprising providing a corresponding data file at the request of a specific person who performs a security procedure by databaseting the audio data file for each operator or user. The method of claim 8, (e) adding an mp3 player function to the encoder microphone, and playing and editing the audio data file stored in the encoder microphone by using the mp3 player function. Way. The method of claim 8, wherein step (a) (a1) converting an audio signal input from the outside into an electrical signal; (a2) amplifying and converting the audio signal converted into an electrical signal into processable digital data; and (a3) compressing the converted digital data into an audio data file of a predetermined format and storing the compressed data. The method of claim 8, wherein the encoder microphone and the PC communicate using any one of a USB interface and an IEEE 1394 interface standard. The method of claim 10, wherein the audio data file of a predetermined format is an mp3 file.