KR940004923B1 - Multi-function telecommunication method in modem - Google Patents

Multi-function telecommunication method in modem Download PDF

Info

Publication number
KR940004923B1
KR940004923B1 KR1019890002271A KR890002271A KR940004923B1 KR 940004923 B1 KR940004923 B1 KR 940004923B1 KR 1019890002271 A KR1019890002271 A KR 1019890002271A KR 890002271 A KR890002271 A KR 890002271A KR 940004923 B1 KR940004923 B1 KR 940004923B1
Authority
KR
South Korea
Prior art keywords
data
data communication
modem
asynchronous
synchronous
Prior art date
Application number
KR1019890002271A
Other languages
Korean (ko)
Other versions
KR900013399A (en
Inventor
김해송
Original Assignee
금성반도체 주식회사
이만용
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 금성반도체 주식회사, 이만용 filed Critical 금성반도체 주식회사
Priority to KR1019890002271A priority Critical patent/KR940004923B1/en
Publication of KR900013399A publication Critical patent/KR900013399A/en
Application granted granted Critical
Publication of KR940004923B1 publication Critical patent/KR940004923B1/en

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units

Abstract

The method executes synchronous and asynchronous data communication, and improves the usage efficiency of data communication. The method transmits data to a corresponding modem through a pc bus connector (2), a signal converter (1), a hybrid (3) and network connector (4), and receives data in reverse sequence on a synchronous data communication between pcs. ON synchronous data communication mode between pcs, a clock signal is sampled in a received signal from the corresponding modem and transmits to a data exchanger (7) on asynchronous data communication mode.

Description

피씨 접속용 모뎀의 다기능 통신방법Multifunctional communication method of PC connection modem

제1도는 일반적인 비동기 데이타 통신용 모뎀의 블록도.1 is a block diagram of a general asynchronous data communication modem.

제2도는 본 발명 다기능 모뎀의 블록도.2 is a block diagram of a multi-function modem of the present invention.

제3도는 본 발명 다기능 통신방법의 흐름도.3 is a flow chart of the multi-function communication method of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 신호변환부 2 : pc 버스 접속부1: signal conversion unit 2: pc bus connection unit

3 : 하이브리드 4 : 국선접속부3: Hybrid 4: Trunk Line Connection

5 : 전화접속부 6 : 중앙처리장치5: Telephone connection 6: Central processing unit

7 : 데이타교환부 8 : 선택부7: data exchange unit 8: selection unit

11 : 변조부 12 : 디지털/아날로그 변환기11 modulator 12 digital to analog converter

13 : 복조부 14 : 아날로그/디지털 변환기13: demodulator 14: analog-to-digital converter

본 발명은 피씨(PC : Personal Computer)를 이용한 데이타통신에 관한 것으로, 특히 동기 및 비동기 데이타통신이 가능하며, 피씨 사용중에도 단말기 또는 프린터 등의 컴퓨터 주변기기를 연결하여 데이타통신이 가능하게 한 피씨 접속용 모뎀의 다기능 통신방법에 관한 것이다.The present invention relates to data communication using a personal computer (PC). In particular, synchronous and asynchronous data communication is possible, and a PC connection for enabling data communication by connecting computer peripheral devices such as a terminal or a printer while using a PC is possible. A multifunctional communication method of a modem.

일반적으로 PC간의 데이타통신은 입출력 인터페이스(Interface)인 모뎀을 통해 이뤄지는데, 상기 모뎀을 살펴보면 제1도에 도시한 바와 같이 PC(도면중 미표시)로부터 출력되는 데이타는 PC 버스접속부(2)를 통한 후 신호변환부(1)에서 아날로그신호로 변환되어 하이브리드(3) 및 주선접속부(4)를 순차로 통해 타모뎀으로 전송되고, 타모뎀으로부터 입력되는 데이타는 상기 주선접속부(4) 및 하이브리드(3)를 순차로 통해 상기 신호변환부(1)에서 디지털신호로 변환되어 PC 버스접속부(2)를 통해 PC에 수신되며, 통신 및 주선상태 감지용 스피커(SP)가 상기 하이브리드(3)에 접속됨과 아울러, 상기 신호변환부(1) 및 PC 버스접속부(2)가 중앙처리장치(6)에 의해 제어되게 구성되어 있었다.In general, data communication between PCs is performed through a modem, which is an input / output interface. Referring to the modem, data output from a PC (not shown in the drawing) is transmitted through a PC bus connection unit 2 as shown in FIG. Then, the signal conversion unit 1 is converted into an analog signal and transmitted to the other modem through the hybrid 3 and the main line connecting unit 4 in sequence, and the data inputted from the other modem is connected to the main line connecting unit 4 and the hybrid (3). ) Is sequentially converted into a digital signal from the signal conversion unit 1 and received by the PC through the PC bus connection unit 2, and the speaker SP for communication and arrangement status connection is connected to the hybrid 3; In addition, the signal conversion section 1 and the PC bus connection section 2 were configured to be controlled by the central processing unit 6.

그러므로 PC 버스접속부(2)를 통해 비동기신호로 변환된 뒤 중앙처리장치(6)의 제어에 의해 변조부(11)로 입력되고, 이에 의해 반송파로 변조되며 디지털/아날로그 변환기(12)에서 아날로그신호로 변환되어 하이브리드(3), 주선접속부(4)를 순차적으로 통해 타모뎀으로 전송된다.Therefore, after being converted into an asynchronous signal through the PC bus connection unit 2, it is input to the modulator 11 by the control of the central processing unit 6, thereby modulated to a carrier wave, and the analog signal from the digital-to-analog converter 12 Is converted to and transmitted to the other modem through the hybrid (3), the main line connecting portion (4) sequentially.

그리고 상기와 같이 타모뎀으로부터 수신되는 아날로그 데이타는 주선접속부(4), 하이브리드(3)를 순차적으로 통한 후 아날로그/디지털 변환기(14)에서 디지털신호로 변환되고, 복조부(13)에서 복조되어 중앙처리장치(6)의 제어에 의해 PC 버스접속부(2)를 통해 PC에 수신된다.As described above, the analog data received from the other modem is sequentially converted through the main line connecting unit 4 and the hybrid 3, and then converted into a digital signal by the analog / digital converter 14, and demodulated by the demodulator 13 and centered. It is received by the PC via the PC bus connection part 2 under the control of the processing apparatus 6.

이와 같이하여 PC간에 비동기 데이타통신이 이루어지며, 스피커(SP)에 의해 통신 및 주선상태가 감지된다.In this way, asynchronous data communication is performed between the PCs, and the communication and arrangement state is sensed by the speaker SP.

그러나 상기와 같은 데이타통신은 비동기 데이타통신이므로 동기통신을 하려면 별도의 단독형 모뎀을 이용하여야 하며, 또 모뎀에 터미널이나 프린터 등의 연결이 불가능했다.However, since the data communication is asynchronous data communication, a separate stand-alone modem must be used for synchronous communication, and it is impossible to connect a terminal or a printer to the modem.

따라서 본 발명은 상기의 문제점을 해결하기 위해 동기식 데이타통신이 가능하게 하고, PC 사용중에도 동기 및 비동기형 주변기기를 사용할 수 있도록 하여 모뎀의 사용효율이 높아지게 창안한 것으로, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.Therefore, in order to solve the above problems, synchronous data communication is possible, and synchronous and asynchronous peripheral devices can be used even while using a PC, thereby increasing the use efficiency of the modem, which will be described in detail with reference to the accompanying drawings. Is as follows.

제2도는 본 발명 다기능 모뎀의 블록도로서, 이에 도시한 바와 같이 PC의 디지털 데이타를 아날로그신호로 변환하여 전송하고, 수신된 아날로그 데이타를 디지털신호로 변환하여 PC로 전송하는 비동기 데이타 통신용 모뎀에 있어서, 모뎀의 동작여부를 선택하기 위한 선택부(8)와, PC간의 동기통신 및 주변기기를 이용한 통신용 접속부인 데이타교환부(7)를 PC 버스접속부(2)에 연결하여 구성한 것으로, 이의 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.2 is a block diagram of a multi-function modem according to the present invention. As shown in the figure, a modem for asynchronous data communication converts and transmits digital data of a PC into an analog signal and converts the received analog data into a digital signal and transmits the data to a PC. And a selection unit (8) for selecting whether to operate the modem and a data exchange unit (7), which is a connection unit for synchronous communication between PCs and a peripheral device, connected to the PC bus connection unit (2). When described in detail with reference to the accompanying drawings as follows.

제3도는 본 발명 다기능 통신방법의 흐름도로서, 이에 도시한 바와 같이 모뎀이 초기화된 후 선택부(8)에 의해 모뎀이 동작하면 PC간의 데이타통신인지를 판별하여 PC간의 데이타통신인 경우 비동기통신일 때 곧바로 데이타통신이 시작되고, 비동기통신이 아닐 때 비동기/동기 카드가 데이타교환부(7)와 연결되어 데이타통신이 이뤄진다.3 is a flow chart of the multi-function communication method of the present invention. As shown in FIG. 3, when the modem is operated by the selection unit 8 after the modem is initialized, it is determined whether or not it is data communication between PCs. When data communication starts immediately, and when it is not asynchronous communication, the asynchronous / synchronous card is connected to the data exchange unit 7 to perform data communication.

그리고 모뎀이 동작하며, PC간의 데이타통신이 아닌 경우 동기통신이면 동기터미널이 데이타교환부(7)와 연결되고, 비동기통신이면 비동기터미널이 데이타교환부(7)와 연결되어 데이타통신이 수행된다.The modem operates, and in case of non-data communication between PCs, the synchronous terminal is connected to the data exchange unit 7 in synchronous communication, and the asynchronous terminal is connected to the data exchange unit 7 in asynchronous communication to perform data communication.

또, 선택부(8)가 드로우(Through)모드에 위치하며 모뎀이 동작하지 않으면 PC에 의해 주변기기가 제어된다.In addition, when the selection unit 8 is located in the throw mode and the modem does not operate, the peripheral device is controlled by the PC.

즉, PC간의 비동기 데이타통신인 경우 경우 PC 버스접속부(2)를 통해 입력된 신호는 비동기신호로 변환된 뒤 변조부(11)에서 변조되고, 디지털/아날로그 변환기(12)에서는 아날로그 신호로 변환되어 하이브리드(3) 및 주선접속부(4)를 순차로 통해 상대 모뎀에 전송되며, 상대 모뎀으로부터 수신되는 신호는 주선접속부(4) 및 하이브리드(3)를 순차로 통한 후 아날로그/디지털변환기(14)에서 디지털신호로 변환되고, 복조부(13)에서 복조되어 PC 버스접속부(2)를 통해 PC로 전송됨에 따라 PC간의 비동기 데이타통신이 수행된다.That is, in the case of asynchronous data communication between PCs, a signal input through the PC bus connection unit 2 is converted into an asynchronous signal and then modulated by the modulation unit 11, and the digital / analog converter 12 is converted into an analog signal. The hybrid 3 and the main line connecting unit 4 are sequentially transmitted to the counterpart modem, and the signal received from the counterpart modem is sequentially passed through the main line connecting unit 4 and the hybrid 3 and then at the analog / digital converter 14. Asynchronous data communication is performed between the PCs as they are converted into digital signals, demodulated by the demodulator 13 and transmitted to the PC through the PC bus connection unit 2.

한편, PC간의 동기 데이타통신인 경우 데이타교환부(7)를 통해 동기화된 데이타가 수신되어 상기 비동기 데이타 통신의 경우와 같이 상대모뎀으로 전송되고, 상대모뎀으로부터 전송된 신호에서 클럭신호가 추출되어 데이타교환부(7)를 통해 전송하여 PC간의 동기데이타 통신이 수행된다.On the other hand, in the case of synchronous data communication between PCs, data synchronized through the data exchange unit 7 is received and transmitted to the counterpart modem as in the case of the asynchronous data communication, and a clock signal is extracted from the signal transmitted from the counterpart modem. Synchronous data communication between PCs is performed through the exchange unit 7.

또, PC가 아닌 주변기기를 이용한 데이타통신인 경우 동기 및 비동기 통신에 따라 각각 동기 및 비동기 터미널 데이타교환부(7)에 연결되어 데이타통신이 수행된다.In addition, in the case of data communication using a peripheral device rather than a PC, data communication is performed by being connected to the synchronous and asynchronous terminal data exchange unit 7 according to synchronous and asynchronous communication, respectively.

그리고 선택부(8)가 드로우(Through)모드에 위치해 있으면 PC 버스접속부(2)를 통해 입력된 신호는 비동기신호로 변환된후 데이타교환부(7)로 전달되어 주변기기가 제어된다.When the selector 8 is located in the through mode, the signal input through the PC bus connection unit 2 is converted into an asynchronous signal and then transferred to the data exchange unit 7 to control the peripheral device.

이상의 상세한 설명과 같이 본 발명은 동기 및 비동기 데이타통신을 수행하고, PC 사용중에도 주변기기를 이용한 데이타통신을 수행하여 사용효율을 높이는 효과가 있다.As described above, the present invention performs synchronous and asynchronous data communication, and improves the use efficiency by performing data communication using a peripheral device even while using a PC.

Claims (1)

PC간의 비동기 데이타통신인 경우 PC 버스접속부(2), 신호변환부(1), 하이브리드(3) 및 국선접속부(4)를 순차로 통해 상대 모뎀으로 데이타를 전송하고, 수신할 때는 데이타 전송시와 역순으로 데이타를 수신하며, PC간의 동기데이타 통신인 경우 상기 비동기 데이타통신과 같이 데이타 전송 및 수신을 수행함과 아울러 상대모뎀으로부터 수신된 신호에서 클럭신호를 추출하여 데이타교환부(7)를 통해 전송하는 한편, 주변기기를 이용한 데이타통신인 경우 동기 및 비동기 데이타통신에 따라 각기 동기 및 비동기 터미널을 상기 데이타교환부(7)에 연결하여 데이타통신을 수행하고, 선택부(8)가 드르우모드에 위치한 경우 상기 PC 버스접속부(2)를 통해 입력된 신호를 비동기신호로 변환한 후 상기 데이타교환부(7)로 전달하여 주변기기를 제어하는 것을 특징으로 하는 피씨 접속용 모뎀의 다기능 통신방법.In case of asynchronous data communication between PCs, data is transmitted to the other modem through the PC bus connection part 2, the signal conversion part 1, the hybrid 3, and the trunk line connection part 4 sequentially, and when receiving data, Data is received in the reverse order, and in case of synchronous data communication between PCs, data transmission and reception are performed as in the asynchronous data communication, and a clock signal is extracted from a signal received from a counterpart modem and transmitted through the data exchange unit 7. Meanwhile, in the case of data communication using a peripheral device, data communication is performed by connecting the synchronous and asynchronous terminals to the data exchange unit 7 according to synchronous and asynchronous data communication, and the selector 8 is located in the draw mode. It converts the signal input through the PC bus connection unit 2 into an asynchronous signal and transfers it to the data exchange unit 7 to control peripheral devices. Multi-function communication method of a modem for connection to PCs.
KR1019890002271A 1989-02-25 1989-02-25 Multi-function telecommunication method in modem KR940004923B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890002271A KR940004923B1 (en) 1989-02-25 1989-02-25 Multi-function telecommunication method in modem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890002271A KR940004923B1 (en) 1989-02-25 1989-02-25 Multi-function telecommunication method in modem

Publications (2)

Publication Number Publication Date
KR900013399A KR900013399A (en) 1990-09-05
KR940004923B1 true KR940004923B1 (en) 1994-06-07

Family

ID=19284062

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890002271A KR940004923B1 (en) 1989-02-25 1989-02-25 Multi-function telecommunication method in modem

Country Status (1)

Country Link
KR (1) KR940004923B1 (en)

Also Published As

Publication number Publication date
KR900013399A (en) 1990-09-05

Similar Documents

Publication Publication Date Title
EP0398729B1 (en) Processor modem
US6529743B1 (en) Universal wireless telephone to modem adapter
JPH0683285B2 (en) modem
EP0228794B1 (en) Intelligent synchronous modem and communication system incorporating the same
KR940004923B1 (en) Multi-function telecommunication method in modem
WO1995003571A1 (en) Apparatus for adding modem capabilities to a computer system equipped with a digital signal processor
JP3446784B2 (en) Data broadcasting device and data broadcasting method
KR0147101B1 (en) Computer connecting system
JP2530611B2 (en) Communication control device
JPH07131504A (en) Data transfer device
KR920011066B1 (en) Interface circuit of dial signal
JP3489481B2 (en) Data communication device, data communication method, and storage medium storing program
JP2630071B2 (en) Data transmission / reception method
KR0181132B1 (en) Signal switching apparatus
JPS61174847A (en) Data transmission system
JPH0447830A (en) Electronic mail system for electronic private branch exchange
RU2073956C1 (en) Secret communication device
JP2000312243A (en) Communication system for information processing unit
WO1999048180A3 (en) Interface module and method for use in sending digitized data
AU586001B2 (en) Virtual bus switching system
JP2506844B2 (en) Data terminal equipment
KR20010049025A (en) Apparatus for data terminal in ISDN
Natarajan et al. Design of a CCITT V. 22 modem
KR19990048033A (en) Laptop wireless communication device
JPS6262647A (en) Line terminal equipment

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee