KR890001717B1 - Data trans-receive device using modem - Google Patents
Data trans-receive device using modem Download PDFInfo
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- KR890001717B1 KR890001717B1 KR1019860003033A KR860003033A KR890001717B1 KR 890001717 B1 KR890001717 B1 KR 890001717B1 KR 1019860003033 A KR1019860003033 A KR 1019860003033A KR 860003033 A KR860003033 A KR 860003033A KR 890001717 B1 KR890001717 B1 KR 890001717B1
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- modem
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- bps
- microcomputer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
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Abstract
Description
첨부도면은 본 발명의 회로도이다.The accompanying drawings are circuit diagrams of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 콘넥터 2 : 표시가1: Connector 2: Display
3 : 마이크로 컴퓨터 4 : 변복조부3: microcomputer 4: variation demodulation part
5 : 다중음 발생부 6 : 기억부5: multiple sound generator 6: memory
7 : 여파기 8 : 연결부7: filter 8: connection
9 : 출력부9: output unit
본 발명은 모뎀(Modem)을 이용한 데이터 송수신장치에 관한 것으로서, 특히 마이크로 컴퓨터(Micre Computer)를 사용하여 공중선을 통한 300/1200 bps(Bit Per Sec)의 전이중 통신이 가능토록 하는 인텔리젠트(Intellegent)모뎀에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission / reception apparatus using a modem. In particular, an intelligent (Etellegent) enables full-duplex communication of 300/1200 bps (Bit Per Sec) through an aerial system using a micro computer. It is about a modem.
종래의 데이터 송수신 장치에 사용한 모뎀은 변조기(Modulator)와 복조기(demodulator)를 디스크리트(Discrete)하게 구성하므로 시스템의 구성이 복잡할뿐만 아니라 모든 동작이 능동적으로 이루어지지 못한다.Modem used in the conventional data transmission and reception device is a discrete configuration of a modulator (modulator) and a demodulator (demodulator), so not only the configuration of the system is complicated, but all operations are not actively performed.
따라서 본 발명의 목적은 상기한 결점을 해결하기 위하여 안출한 것으로서 공중선용 300/1200 bps의 모뎀칩(Chip)을 이용하여 시스템 구성이 간단하고, 전이중 통신이 가능하도록 한 회로를 제공하며, 컴퓨터 또한 터미널(Terminal)과의 기계적인 대화에 따라 작동되는 것으로 자동호출과 통신속도 변환 및 프로토콜(Protocol)등의 변환기능을 갖는 회로를 제공하는데 있다.Accordingly, an object of the present invention is to solve the above-mentioned shortcomings, and provides a circuit that enables a simple system configuration and enables full-duplex communication by using a modem chip of 300/1200 bps for aerial use. It is operated by mechanical conversation with terminal, and provides circuit with conversion function such as auto call, communication speed conversion and protocol.
이하 첨부된 도면에 의거하여 본 발명의 실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부된 도면은 본 발명의 회로도로서 콘넥터(Connector)(1)는 단말장치의 시스템에 연결하는 접속장치이고, 표시기(2)는 모뎀(Modem)의 동작상태 즉 데이터의 송수신 상태를 표시하는 회로이다.The accompanying drawings are circuit diagrams of the present invention. A connector 1 is a connection device for connecting to a system of a terminal device, and the indicator 2 is a circuit for displaying an operation state of a modem, that is, a data transmission / reception state. .
마이크로 컴퓨터(3)는 모뎀이 핸드 세이크(Hand Shake) 및 컴퓨터간의 능동적인 동작등 시스템의 전동작을 제어하는 회로이고, 변복조부(4)는 전송 및 수신하고자 하는 데이터를 변복조하는 부분이며, 다중음 발생부(5)는 전화기의 다이알링(Dialing)에 의한 펄스(Pulse)및 톤(Tone)의 신호를 발생하는 회로이다.The microcomputer 3 is a circuit for controlling the entire operation of the system such as a modem by hand shake and active operation between the computers, and the modulator 4 is a part for demodulating and demodulating data to be transmitted and received. The sound generator 5 is a circuit for generating signals of pulses and tones due to dialing of the telephone.
그리고 기억부(6)는 이미 시스템에 지정된 상태를 입력 데이터에 따라 결부시키는 데이터와, 전화번호등의 데이터를 기억시킬수 있다.The storage unit 6 can also store data for associating a state already assigned to the system according to the input data, and data such as a telephone number.
그리고 여파기(7)는 상기한 다중음 발생부(5)에서 다이알링에 따른 신호를 필터링(Filtering)하는 회로이고, 연결부(8)는 변복조부(4)의 입출력 라인과 전화선과의연결을 위한 회로이며, 출력부(9)는 송수신하는 데이터를 스피커(Speaker)로 통하여 들을수 있게한 회로로 구성한다.The filter 7 is a circuit for filtering a signal according to dialing in the multiple sound generator 5, and the connection unit 8 is for connecting an input / output line and a telephone line of the modulation and demodulation unit 4. It is a circuit, and the output part 9 is comprised by the circuit which can listen to the data transmitted and received through a speaker.
다음은 본 발명의 회로동작에 관한 것이다.The following relates to the circuit operation of the present invention.
데이터 전송시에 다중음 발생부(5)의 다이알링 신호에 의해서 수신측을 지정하면, 단말장치와 연결된 콘넥터(1)를 경유하며 전송시키고자 하는 데이터는 마이크로 컴퓨터(3)의 제어신호에 따라 변복조부(4)에 인가되어 변조된다.When the receiving side is designated by the dialing signal of the multiple sound generator 5 during data transmission, the data to be transmitted via the connector 1 connected to the terminal device is transmitted according to the control signal of the microcomputer 3. The modulation and demodulation section 4 is applied to and modulated.
이때 변복조부(4)의 동작상태 즉 데이터를 전송하는 상태를 표시기(2)에 의해서 점등되어 나타나게 되고, 상기한 변복조부(4)를 거친 변조신호는 연결부(8)에 인가된다.At this time, the operation state of the demodulation unit 4, that is, the state of transmitting data is displayed by the indicator 2, and the modulation signal passing through the above-described demodulation unit 4 is applied to the connection unit 8.
연결부(8)에 인가된 변조신호는 전화선을 따라 수신축으로 전송된다.The modulated signal applied to the connecting section 8 is transmitted along the telephone line to the receiving shaft.
그리고 데이터 수신시에는 연결부(8)에 인가된 신호가 변복조부(4)에 입력되어 복조된다.When data is received, a signal applied to the connection unit 8 is input to the demodulation unit 4 and demodulated.
이 복조된 신호는 마이크로 컴퓨터(3)의 제어신호에 따라 단말장치의 콘넥터(1)를 거쳐서 단말장치에 입력된다.The demodulated signal is input to the terminal device via the connector 1 of the terminal device in accordance with the control signal of the microcomputer 3.
상기한 바와같이 데이터의 송수신시에 수신측의 호출번호등을 기어부(6)에 기억시킬수도 있다.As described above, the call part on the receiving side and the like can be stored in the gear unit 6 during data transmission and reception.
그리고 300/1200 bps 모뎀칩을 사용함으로써 회로구성이 간단하고 전이중 통신이 가능할뿐만 아니라 마이크로 컴퓨터 사용으로 능동적인 동작이 가능하다.The 300/1200 bps modem chip enables simple circuit configuration, full-duplex communication, and active operation using a microcomputer.
따라서 본 발명에 의하면 전이중 통신이 가능하고 수신측의 호출과 송신측의 응답이 자동으로 이루어지며 프로토콜변환등 모든 동작이 능동적으로 이루어지므로써 개인용 컴퓨터의 보급과 더블어 데이터통신에 널리 이용될 수 있다.Therefore, according to the present invention, full-duplex communication is possible, and the call of the receiving side and the response of the transmitting side are made automatically, and all operations such as protocol conversion are actively performed, so that it can be widely used for the distribution of personal computers and double data communication.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019860003033A KR890001717B1 (en) | 1986-04-18 | 1986-04-18 | Data trans-receive device using modem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019860003033A KR890001717B1 (en) | 1986-04-18 | 1986-04-18 | Data trans-receive device using modem |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870010442A KR870010442A (en) | 1987-11-30 |
KR890001717B1 true KR890001717B1 (en) | 1989-05-18 |
Family
ID=19249510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019860003033A KR890001717B1 (en) | 1986-04-18 | 1986-04-18 | Data trans-receive device using modem |
Country Status (1)
Country | Link |
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KR (1) | KR890001717B1 (en) |
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1986
- 1986-04-18 KR KR1019860003033A patent/KR890001717B1/en not_active IP Right Cessation
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Publication number | Publication date |
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KR870010442A (en) | 1987-11-30 |
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