KR19990073234A - MP3 data transmission and reception device - Google Patents
MP3 data transmission and reception device Download PDFInfo
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- KR19990073234A KR19990073234A KR1019990024122A KR19990024122A KR19990073234A KR 19990073234 A KR19990073234 A KR 19990073234A KR 1019990024122 A KR1019990024122 A KR 1019990024122A KR 19990024122 A KR19990024122 A KR 19990024122A KR 19990073234 A KR19990073234 A KR 19990073234A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/005—Removing slag from a molten metal surface
Abstract
전자기술과 컴퓨터의 발달로 매일 새로운 전자 제품이 출시 되어 지는 제품 중에서 새롭게 선 보이는 제품 중의 하나가 데이터 압축을 이용한 오디오 재생기로서 현재 시장에서 판매되고 있는 MP3 플레이어 이다. 이 MP3 플레이어는 MP3로 압축된 오디오 데이터를 전송 받아 이 압축된 데이터를 신장 하면서 원래의 오디오 데이터로 바꾸고 이를 아날로그로 재생하여 사용자가 헤드폰등의 기기로서 음악을 듣게 되는 것이다.With the development of electronic technology and computers, one of the new products that is newly released every day is the MP3 player currently on the market as an audio player using data compression. The MP3 player receives the compressed audio data as MP3, expands the compressed data, converts the original audio data, and reproduces it in analog so that the user can listen to music as a device such as headphones.
그런데 이 MP3 플레이어는 상기의 MP3용 데이터 전송 방법으로 컴퓨터를 이용 하는데, 이 방법으로는 항상 컴퓨터가 있는 장소에서만 MP3 데이터를 전송 받을 수 있으므로 외출시나 기타의 장소에서는 전송 받는 방법이 불가 하므로 상당히 불편한 점이 있었다. 따라서 본 발명에서는 상기의 문제점을 해결 하고자 고안 되었으며 그 방법으로는 MP3 끼리의 데이터 전송 방법으로 케이블을 이용한 데이터전송이나 적외선 통신이나 기타의 프로토콜을 가진 데이터 전송 방법을 이용할 수 있으며, 이러한 방법을 이용한다면 컴퓨터가 없어도 MP3끼리의 데이터 전송으로 MP3데이터를 전송 받을 수 있으므로 언제 어디서나 MP3 끼리 데이터 송수신으로 친구나 연인등 한사람 이라도 새로운 MP3 데이터를 가지고 있으면 다른 MP3 플레이어 로의 전송으로 상대방도 쉽게 전송 받을 수 있는 장점이 있는 것이다.However, this MP3 player uses a computer as the method of transferring data for MP3, but since this method can always receive MP3 data only in the place where the computer is located, it can not be transmitted when going out or in other places. there was. Therefore, the present invention has been devised to solve the above problems, and the method can be used as a data transmission method between MP3 data transmission method using a cable, infrared communication or other protocol data transmission method, Even without a computer, you can receive MP3 data by transferring data between MP3s, so if a friend or a lover has new MP3 data anytime, anywhere, they can easily receive it by sending it to another MP3 player. It is.
Description
전자기술과 컴퓨터의 발달로 매일 새로운 전자 제품이 출시 되어 지는 제품 중에서 새롭게 선 보이는 제품 중의 하나가 데이터 압축을 이용한 오디오 재생기로서 현재 시장에서 판매되고 있는 MP3 플레이어 이다. 이 MP3 플레이어는 MP3로 압축된 오디오 데이터를 전송 받아 이 압축된 데이터를 신장 하면서 원래의 오디오 데이터로 바꾸고 이를 아날로그로 재생하여 사용자가 스피커나 헤드폰등의 기기로서 음악을 듣게 되는 것이다.With the development of electronic technology and computers, one of the new products that is newly released every day is the MP3 player currently on the market as an audio player using data compression. The MP3 player receives the audio data compressed by MP3, expands the compressed data to the original audio data, and reproduces it in analog so that the user can listen to music as a device such as a speaker or headphones.
그런데 이 MP3 플레이어는 상기의 MP3용 데이터 전송 방법으로 컴퓨터를 이용 하는데, 이 방법으로는 항상 컴퓨터가 있는 장소에서만 MP3 데이터를 전송 받을 수 있으므로 외출시나 기타의 장소에서는 MP3 데이터를 전송 받는 방법이 불가 하므로 상당히 불편한 점이 있었다. 따라서 본 발명에서는 상기의 문제점을 해결 하고자 고안 되었으며 그 방법으로는 MP3 끼리의 데이터 전송 방법으로 케이블을 이용한 데이터전송이나 적외선 통신이나 기타의 프로토콜을 가진 데이터 전송 방법을 이용할 수 있으며, 이러한 방법을 이용 한다면 컴퓨터가 없어도 MP3끼리의 데이터 전송으로 MP3데이터를 전송 받을 수 있으므로 언제 어디서나 MP3 끼리의 데이터 송수신으로 친구나 연인등 한사람 이라도 새로운 MP3 데이터를 가지고 있으면 다른 MP3 플레이어 로의 전송으로 상대방도 쉽게 전송 받을 수 있는 장치를 구현 하는데에 목적이 있다.However, this MP3 player uses a computer as the method of transferring data for MP3. In this method, the MP3 data can be transmitted only at the place where the computer is always located. There was quite an inconvenience. Therefore, the present invention has been devised to solve the above problems, and the method can be used as a data transmission method between MP3 and data transmission method using a cable or infrared communication or other protocols, and if such a method is used, MP3 data can be received by MP3 data transfer without a computer, so anytime, anywhere can send and receive data between MP3s. If a friend or lover has new MP3 data, it can be easily transferred to another MP3 player. The purpose is to implement
유무선 데이터 통신Wired and wireless data communication
양방향 유무선 데이터 통신Two-Way Wired and Wireless Data Communication
도1. 종래의 전체블록도Figure 1. Conventional block diagram
도2. 본 발명의 전체블록도Figure 2. Block diagram of the present invention
도3. 도2에서의 「201」 데이터 입출력장치의 세부 블록도Figure 3. Detailed block diagram of the "201" data input / output device in FIG.
도4. 도3에서의 MP3 데이터 전송방법 선택에 대한 타이밍도Figure 4. Timing Diagram for Selecting MP3 Data Transmission Method in FIG.
도5. 종래 MP3 플레이어의 MP3데이타 입력 개념도Figure 5. MP3 data input conceptual diagram of conventional MP3 player
도6. 본 발명의 MP3 플레이어의 MP3데이타 입출력 개념도 1 -- 유선통신Figure 6. MP3 data input and output conceptual diagram 1 of the MP3 player of the present invention-wired communication
도7. 본 발명의 MP3 플레이어의 MP3데이타 입출력 개념도 2 -- 무선통신Figure 7. MP3 data input and output conceptual diagram of the MP3 player of the present invention 2-wireless communication
도8. MP3 플레이어의 MP3데이타 송신측 마이콤 프로우차트Figure 8. MP3 Player's MP3 Data Transmitter
도9. MP3 플레이어의 MP3데이타 수신측 마이콤 프로우차트Figure 9. Micom Prochart for MP3 data receiving side of MP3 player
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
101 : MP3 데이터 입력장치101: MP3 data input device
102,202,305 : 메모리102,202,305: Memory
103,203 : 메모리 인터페이스103,203: Memory Interface
104,204 : 마이콤104,204: Micom
105,205 : MP3 디코더105,205: MP3 Decoder
106,206 : 오디오 출력 장치106,206: Audio output device
107,207 : 스피커107,207: Speaker
108,208 : 키 입력108,208: Keystrokes
201 : MP3 데이터 입출력 장치201: MP3 data input and output device
301 : 시리얼 통신용 데이터 입출력 포트301: data input / output port for serial communication
302 : 파라렐 통신용 데이터 입출력 포트302: Data input / output port for pararell communication
303 : 무선 통신용 데이터 입출력 포트303: data input / output port for wireless communication
304 : 데이터 선택장치304: data selector
306 : 데이터 입출력 변환 장치306: data input and output converter
307 : 송신용 쓰리스테이트 버퍼307: Three state buffer for transmission
308 : 수신용 쓰리스테이트 버퍼308: three-state buffer for reception
501,601,602,701,702: MP3 플레이어501,601,602,701,702: MP3 player
502 : MP3 플레이어의 동작키502: Action key of the MP3 player
503 : MP3 플레이어의 상태표시기503: MP3 player status indicator
504 : 콤퓨터504: Computer
505 : MP3 데이터통신용 PC연결 케이블505: PC connection cable for MP3 data communication
603,703 : 송신측 MP3 플레이어의 동작키603,703: Operation key of MP3 player
604,704 : 수신측 MP3 플레이어의 동작키604,704: Operation key of receiving MP3 player
605,705 : 송신측 MP3 플레이어의 상태표시기605,705: Status indicator of the transmitting MP3 player
606,706 : 수신측 MP3 플레이어의 상태표시기606,706: status indicator of receiving MP3 player
607 : 송신측 유선 데이터 입출력 장치607: wired data input / output device of the transmitting side
608 : 수신측 유선 데이터 입출력 장치608: receiving wired data input / output device
609 : 유선 데이터 통신용 케이블609 cable for wired data communication
707 : 송신측 무선 데이터 입출력 장치707: transmitting data wireless input / output device
708 : 수신측 무선 데이터 입출력 장치708: receiving wireless data input / output device
도1은 종래의 MP3의 블록도로서 전체 구성을 설명해 보면 「101」은 MP3 데이터의 입력 장치이고 「102」는 MP3데이터를 보관 하는 메모리,「103」은 상기의 메모리를 동작 시키기 위한 메모리 인터페이스 회로,「104」는 마이콤,「105」는 상기 메모리에 기록 되어 있는 MP3 데이터를 일반의 오디오 신호로 변환 시켜주는 MP3디코더,「106」은 상기의 MP3디코데에서 출력되는 일반의 오디오 신호를 적절한 아날로그 오디오 출력으로 바꾸워 출력하는 오디오 출력 장치,「107」은 출력 되는 오디오를 들을 수 있게 하는 스피커나 헤드폰등을 생각 할 수 있다. 상기의 도1의 구성에 대한 기본적인 동작을 좀더 자세히 설명 해 보면 「101」의 데이터 입력장치에서 입력되는 MP3데이터를 「102」의 메모리에 기록 시키고 「108」의 동작키 조작에 의해 재생등의 실행을 요구 하면 「104」의 마이콤에서는 「103」의 메모리 인터페이스를 동작 시켜「102」의 메모리의 데이터를 읽어내고 이 읽어낸 MP3데이터는 「105」의 MP3디코더에 입력 되고 다음 「105」MP3디코더 에서는 이 MP3데이터를 일반 오디오 신호로 변환 하고 「106」「107」의 오디오 출력장치와 스피커를 거쳐 오디오 신호로 출력된다. 상기의 「101」의 MP3 데이터 입력 장치는 컴퓨터를 통한 MP3데이터를 입력할수 있는 입력 장치이다. 이 PC와의 연결을 도5에 보였다. 도5를 간략히 설명 해보면 「501」은 MP3 플레이어,「502」는 MP3플레이어의 동작키,「503」은 MP3 플레이어의 상태 표시기로서 현재 재생중인지 데이터 수신중인지등의 상태를 보여 주는 것이다. 「504」는 현재 MP3 데이터가 보관 되어 있는 콤퓨터, 「505」는 MP3데이터 통신용 PC 연결 케이블로서 이 「505」를 통해 MP3 데이터를 전송 받는 것이다. 지금 까지 종래의 MP3플레이어의 MP3데이터 전송에 관해 설명 해 보았다. 이와같이 종래의 MP3데이터 전송의 문제점으로는 상기의 「504」의 콤퓨터를 통해서만이 가능 하였으나 본 발명에서는 PC에서만이 아닌 MP3끼리의 데이터 송수신으로 좀더 활용성과 편리성등을 높힐수가 있다. 지금 부터는 상기와 같은 본 발명의 목적인 MP3끼리의 데이터 송수신에 대해서 설명 해 보겠다.Fig. 1 is a block diagram of a conventional MP3. When explaining the overall configuration, “101” is an input device for MP3 data, “102” is a memory for storing MP3 data, and “103” is a memory interface circuit for operating the above memory. '104' is a microcomputer, '105' is an MP3 decoder that converts the MP3 data recorded in the memory into a general audio signal, and '106' is an appropriate analog signal of the general audio signal output from the MP3 decoder. An audio output device, which is converted to audio output and outputs, 107 may be a speaker or a headphone that allows audio to be output. The basic operation of the configuration of FIG. 1 will be described in more detail. As shown in FIG. 1, the MP3 data input from the data input device of " 101 " is recorded in the memory of " 102 " If you ask for "104", the microcomputer operates the memory interface of "103" to read the data of memory of "102", and the read MP3 data is input to the MP3 decoder of "105", and the following "105" MP3 decoder The MP3 data is converted into a general audio signal and output as an audio signal through an audio output device of "106" and "107" and a speaker. The above-mentioned MP3 data input device of "101" is an input device capable of inputting MP3 data through a computer. The connection with this PC is shown in FIG. Referring to Fig. 5 briefly, "501" is an MP3 player, "502" is an operation key of an MP3 player, and "503" is a status indicator of an MP3 player, and shows whether the player is currently playing or receiving data. "504" is the computer where MP3 data is currently stored, "505" is a PC connection cable for MP3 data communication, and MP3 data is transmitted via this "505". So far, the MP3 data transmission of the conventional MP3 player has been described. As described above, the conventional MP3 data transmission problem is possible only through the computer of "504", but in the present invention, it is possible to increase the usability and convenience by transmitting and receiving data between MP3s, not only PCs. From now on, data transmission and reception between MP3s, which is the object of the present invention as described above, will be described.
도2에 본 발명의 전체 블록도를 보였다. 이 도2를 설명 해보면 「201」은 MP3 데이터의 입출력 장치이고 「202」는 MP3데이터를 보관 하는 메모리,「203」은 상기의 메모리를 동작 시키기 위한 메모리 인터페이스 회로,「204」는 마이콤,「205」는 상기 메모리에 기록되어 있는 MP3 데이터를 일반의 오디오 신호로 변환 시켜주는 MP3디코더,「206」은 상기의 MP3 디코더에서 출력되는 일반의 오디오 신호를 적절한 아날로그 오디오 출력으로 바꾸워 출력하는 오디오 출력 장치,「207」은 출력 되는 오디오를 들을 수 있게 하는 스피커나 헤드폰등을 생각 할 수 있다. 상기의 도2의 구성에 대한 기본적인 동작을 좀더 자세히 설명 해 보면 「201」의 MP3 데이터 입출력장치에서 입력되는 MP3데이터를 「202」의 메모리에 기록 시키고 「208」의 동작키 조작에 의해 재생등의 실행을 요구 하면 「204」의 마이콤에서는 「203」의 메모리 인터페이스를 동작 시켜 「202」의 메모리의 데이터를 읽어내고 이 읽어낸 MP3데이터는 「205」의 MP3디코더에 입력 되고 다음 「205」 MP3디코더 에서는 이 MP3데이터를 일반 오디오 신호로 변환 하고 「206」「207」의 오디오 출력장치와 스피커를 거쳐 오디오 신호로 출력된다. 이상은 본 발명의 MP3플레이어의 동작으로 상기의 「201」의 데이터 입출력 장치는 PC를 통한 MP3데이터를 입력할수 있는 입력 장치 뿐만 아니라 여러 방법으로 MP3 데이터를 송수신 할 수 있다. 도3에는 상기의「201」 MP3 데이터 입출력장치의 세부 블록도를 보였다. 구성을 설명해보면 「301」은 시리얼 통신용 데이터 입출력 포트,「302」은 파라렐 통신용 데이터 입출력 포트, 「303」은 무선통신용 데이터 입출력 포트,「304」는 상기의 입출력포트로 입출력되는 데이터중 하나만을 선택 하여 「305」의 메모리로 보내거나, 메모리에서 읽어낸 MP3 데이터를 외부로 보내기 위해 상기의 입출력 포트중 하나를 선택하는 경우 사용 되며, 「306」은 본 발명의 목적인 MP3 데이터의 입출력의 방향을 결정하는 데이터 입출력 변환장치,「305」는 상기의 MP3 데이터를 기록하거나 읽어내는 메모리이다. 이싱과 같이 상기와 같이 구성되는 데이터 입출력 장치의 세부 블록도를 나타내었다. 다음 자세히 상기 블록도를 설명 해보면 먼저 사용자가 자신이 가지고 있는 MP3플레이어에 MP3 데이터를 받을 것인지 보낼 것인지를 결정 하는 것이다. 즉 송신인지, 수신인지를 정하는 것이다. 이렇게 되면 MP3플레이어는 MP3 데이터의 송신측인지 수신측인지의 결정이 된다. 본 발명에서는 이 결정을 「306」의 데이터 입출력 변환장치로 결정하는데 일 예로서 설명 해 보면, 도3의 ⓑ를 통해 이것이 결정 되는 데 만약 사용자가 데이터 송신으로 결정 한다면, 도2의 「204」 마이콤에서는 ⓑ를 '0'로 하여 「307」의 송신용 쓰리 스테이트 버퍼를 동작 시킨다. 이때 「308」은 ⓑ가 '0' 이므로 디스에이블 되어 동작 되지 않으므로 데이터의 흐름은 「305」의 메모리에서 출력으로 되어 데이터의 송신으로 되고, 다음 사용자가 데이터 수신으로 결정 한다면 도2의 「204」 마이콤에서는 ⓑ를 '1' 로 하여 「308」의 수신용 쓰리 스테이트 버퍼를 동작 시킨다. 이 때 「307」은 ⓑ가 '1' 이므로 디스에이블 되어 동작 되지 않으므로 데이터의 흐름은 「305」의 메모리로 입력으로 되어 데이터의 수신이 된다.2 shows an overall block diagram of the present invention. Referring to FIG. 2, "201" is an input / output device for MP3 data, "202" is a memory for storing MP3 data, "203" is a memory interface circuit for operating the above memory, "204" is a microcomputer, "205" Is an MP3 decoder that converts the MP3 data recorded in the memory into a general audio signal, and "206" is an audio output device that converts the general audio signal output from the MP3 decoder into an appropriate analog audio output and outputs the same. "207" can be thought of as speakers or headphones that allow you to listen to the audio output. 2, the MP3 data inputted from the MP3 data input / output device of the " 201 " is recorded in the memory of the " 202 " Upon requesting execution, the microcomputer of "204" operates the memory interface of "203" and reads the data of the memory of "202", and this read MP3 data is input into the "205" MP3 decoder, and the next "205" MP3 decoder The MP3 data is converted into a general audio signal and output as an audio signal through an audio output device of "206" and "207" and a speaker. As described above, the operation of the MP3 player of the present invention enables the data input / output device "201" to transmit and receive MP3 data in various ways as well as an input device capable of inputting MP3 data through a PC. Fig. 3 shows a detailed block diagram of the " 201 " MP3 data input / output device. When explaining the configuration, "301" is a data input / output port for serial communication, "302" is a data input / output port for parallax communication, "303" is a data input / output port for wireless communication, and "304" is only one of data input / output through the above-mentioned input / output port. It is used to select one of the above I / O ports to select and send to the memory of '305' or to send MP3 data read from the memory to outside, and '306' indicates the direction of the input / output of MP3 data which is the object of the present invention. A data input / output converter for determining, "305", is a memory for recording or reading the above-mentioned MP3 data. The detailed block diagram of the data input / output device comprised as mentioned above like this is shown. In the following block diagram, the user first decides whether to receive or send MP3 data to his or her MP3 player. In other words, it determines whether it is a transmission or a reception. In this case, the MP3 player determines whether to transmit or receive MP3 data. In the present invention, this determination is determined by the data input / output converter of "306". As an example, this determination is made through ⓑ of FIG. 3. If the user decides to transmit data, the "204" microcomputer of FIG. In this case, ⓑ is set to '0' to operate the three-state buffer for transmission "307". At this time, 308 is disabled because ⓑ is '0', so the flow of data is output from the memory of 305 to send data, and if the next user decides to receive the data, 204 in FIG. In the microcomputer, set ⓑ to '1' to operate the three-state buffer for receiving "308". At this time, 307 is disabled because ⓑ is '1', so the data flow is input to the memory of 305 to receive data.
다음은 데이터의 전송 방법의 결정을 해야 하는데 왜냐하면 데이터의 전송 방법이 여러개 존재 하기 때문이다. 본 발명에서의 실시예로서는 3가지를 예로 들었는데 첫째는 시리얼통신, 둘째는 파라렐 통신, 샛째는 무선통신이다. 이 통신방식의 3가지중에서 MP3 데이터를 송수신용으로 선택 하여야 하는데 이 선택은 도2의 「204」 마이콤에서 ⓐ로 결정한다. 이 ⓐ로 「304」로 입력되는 상기의 3가지 입력중 하나를 선택 하는 것인데, 예로서 「304」는 일종의 MUX로서 데이터 선택 스위치이다. 선택 형태가 '00' 일때는 ㉣은 ㉠으로 입력되는 시리얼 데이터가 선택되고, '01' 일때는 ㉣은 ㉡으로 입력되는 파라렐 데이터가 선택되고, '11' 일때는 ㉣은 ㉢으로 입력되는 무선 데이터가 선택된다. 이것은 단순히 입력 데이터의 형태가 어떤 데이터인지를 결정 하는 것이다. 이렇게 해서 데이터의 통신형태와 송신인지 수신인지의 결정이 완료 되었다. 다음은 이상황에서 「305」의 메모리도 상기의 결정 과 같이 연동 하여 읽기인지 쓰기인지 정해야 한다. 이것도 도2의「204」마이콤의 ⓒ로 결정한다. 현재 데이터 송수신 선택이 송신이면 MP3데이터를 보내야 하기 때문에 「305」의 메모리는 읽기가 되어야 하므로 ⓒ를 '1' 로 하여 「305」를 읽기로 하고 ,데이터 선택이 수신이면 받아야 하기 때문에 「305」의 메모리는 쓰기가 되어야 하므로 ⓒ를 '0' 으로 하여 「305」의 메모리를 쓰기로 한다. 이와같이 하여 본 발명의 목적인 MP3 플레이어에 MP3 데이터를 송신할 것인지 ,수신 할 것인지의 결정과 그때의 데이터의 형태를 결정을 할 수 있는 것이다.Next, we have to decide how to transfer the data, because there are several data transmission methods. In the embodiment of the present invention, three examples are given, firstly serial communication, secondly pararell communication, and firstly wireless communication. MP3 data should be selected for transmission / reception from the three types of communication methods. This selection is determined as ⓐ in the microcomputer 204 of FIG. In this case, one of the above three inputs input as "304" is selected. For example, "304" is a kind of MUX, which is a data selection switch. When the selection type is '00', the serial data input with ㉠ is selected. When the selection type is '01', the paralar data input with ㉡ is selected. When '11', the wireless data is input with ㉢. The data is selected. It simply determines what type of input data is. In this way, the determination of the communication type of the data and whether it is transmission or reception is completed. Next, in the above situation, the memory of "305" should also be determined as read or write in conjunction with the above decision. This is also determined by? Of the "204" microcomputer in FIG. If the current data transmission / reception selection is transmission, the MP3 data should be sent. Therefore, the memory of "305" should be read. Therefore, "305" should be read with ⓒ as "1". Since the memory should be written, let '305' be written with ⓒ as '0'. In this way, it is possible to determine whether or not to transmit or receive MP3 data to the MP3 player, which is the object of the present invention, and the form of the data at that time.
도4에서는 상기의 ⓐ,ⓑ,ⓒ,㉣에 대한 실제의 타이밍도를 보였다.In Fig. 4, the actual timing diagrams for the above?,?,?,?
도8과 도9는 상기 내용을 총괄 하는 「204」 마이콤의 프로그램 의 플로우 차트로서 도8은 수신측에서의 플로우차트, 도9는 송신측에서의 플로우차트를 보였다. 예로서 설명 해보면 우선 도8의 수신측으로 먼저 사용자는 데이터의 수신으로 정한다. 다음은 데이터의 통신형태를 정한다. 상기의 3가지 형태중 하나를 선택 하는 것이다. 다음은 어느 트랙으로 데이터를 수신 할 것인지를 정한다. 다음 송신측의 준비 상태를 확인 한다. 이때 일정 시간 송신측으로부터 아무런 형태로의 입력이 없으면 수신을 포기 하고 끝낸다. 그렇지만 송신측으로부터 데이터가 입력 되면 수신을 개시하고 수신이 완료 되면 끝낸다. 다음 송신측의 마이콤 플로우차트로 도9의 에서와 같이 먼저 사용자는 데이터의 송신으로 정한다. 다음은 데이터의 통신형태를 정한다. 상기의 3가지 형태중 하나를 선택 하는 것이다. 다음은 어느 트랙의 데이터를 송신 할 것인지를 정한다. 다음 수신측의 준비 상태를 확인 한다. 이때 일정 시간 수신측으로부터 아무런 형태로의 입력이 없으면 송신을 포기 하고 끝낸다. 그렇지만 수신측으로부터 데이터가 입력 되면 송신을 개시하고 송신이 완료 되면 끝낸다.8 and 9 are flowcharts of the program of the "204" microcomputer, which summarizes the above contents. FIG. 8 shows a flowchart on the receiving side, and FIG. 9 shows a flowchart on the transmitting side. As an example, first, the user decides to receive data. Next, decide the communication type of data. One of the three forms is selected. Next, decide on which track you want to receive the data. Then check the readiness of the sender. At this time, if there is no input from the sender for a certain time, it abandons the reception and ends. However, when data is input from the sender, reception is started and when reception is completed, it ends. Next, as shown in Fig. 9, the user decides to transmit data in the micom flowchart on the sender's side. Next, decide the communication type of data. One of the three forms is selected. Next you decide which track's data you want to send. Check the ready status of the next receiver. At this time, if there is no input from the receiver for a certain time, the transmission is abandoned and ends. However, when data is input from the receiving side, transmission starts and ends when transmission is completed.
도6는 본 발명의 MP3 플레이어의 MP3데이타 입출력 개념도로 유선통신을 예로서 들은 것이다. 「601」의 송신측 MP3플레이어와 「602」의 수신측 MP3 플레이어와의 유선 데이터통신으로 「607」「608」의 유선 데이터 입출력 장치를 연결 하는 「609」의 연결 케이블을 통해 현재 MP3 데이터의 송수신이 진행중인 예로서 각각의 MP3 플레이어 모두 트랙1에 데이터를 읽고 쓰고 있다.6 illustrates wired communication as an example of MP3 data input / output conceptual diagram of the MP3 player of the present invention. Transmission and reception of current MP3 data through a connection cable of 609 that connects a wired data input / output device of 607 or 608 by wired data communication between the transmitting MP3 player of 601 and the receiving MP3 player of 602. In this ongoing example, each MP3 player is reading and writing data to track 1.
다음은 도7로본 발명의 MP3 플레이어의 MP3데이타 입출력 개념도로 무선통신일 경우의 예이다. 「701」의 송신측 MP3플레이어와 「702」의 수신측 MP3 플레이어와의 유선 데이터 통신으로 「707」「708」의 무선 데이터 입출력 장치를 통해 현재 MP3 데이터의 무선 송수신이 진행중인 예로서 각각의 MP3 플레이어 모두 트랙1에 데이터를 읽고 쓰고 있다.The following is an example of MP3 data input and output conceptual diagram of the MP3 player of the present invention as shown in FIG. The MP3 player is an example of wireless transmission / reception of MP3 data through the wireless data input / output device of “707” or “708” through wired data communication between the transmitting MP3 player of “701” and the receiving MP3 player of “702”. Both are reading and writing data to track 1.
상기의 무선데이터의 형태는 적외선 통신이나 IrDA등의 국제규격의 전송형태를 이용 할 수 도 있고, MP3 플레이어 제조회사의 독자적인 무선 데이터 전송 형태로도 이용 할 수 있다.The wireless data may be used in the form of infrared communication or international standard transmission such as IrDA, or may be used as an independent wireless data transmission form of an MP3 player manufacturer.
MP3 플레이어에 있어서 컴퓨터만을 이용한 MP3 데이터 수신이 아닌 MP3 플레이어 기기끼리의 연결로도 MP3 데이터를 송수신 할 수 있으므로 종래에 비해 활용성 및 편리성에 잇점이 있는 효과가 있다.In the MP3 player, MP3 data can be transmitted / received by connecting MP3 player devices instead of using only a computer to receive MP3 data, which is advantageous in terms of usability and convenience compared to the prior art.
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