KR980007415A

KR980007415A - Automatic switching device between regular telephone and video telephone

Info

Publication number: KR980007415A
Application number: KR1019960022290A
Authority: KR
Inventors: 장창현
Original assignee: 김주용; 현대전자산업 주식회사
Priority date: 1996-06-19
Filing date: 1996-06-19
Publication date: 1998-03-30

Abstract

본 발명은 일반 전화기와 화상 전화기의 자동 전환장치에 관한 것으로, 전화선에 연결된 하이브리드 및 DAA을 통하여 수신하는 신호 검출기에서 일반 전화기나 화상 전화기에 해당하는 신호의 여부를 검출하여 마이크로 프로세서에 전달하도록 하고, 상기 마이크로 프로세서의 제어를 받는 단속기에서는 신호 발생기에서 발생되는 단속톤을 출력하도록 구성하되, 송신할 때에는 상대측 전화번호를 다이얼링하여 상대측에서 송수화기를 들면 마이크로 프로세서에서 단속기를 제어하여 신호 발생기에서 발생되는 단속톤을 하이브리드 및 DAA을 거치고 전화선을 통화여 출력한 후, 전환 스위치를 타측의 하이브리드회로로 연결하여 음성 통화가 가능하도록하고, 일정시간 동안 상대방으로부터 응답이 없으면 핸드 세이킹을 끊는 한편, 상대방으로부터 응답이 있으면 전환 스위치를 일측의 모뎀으로 연결하여 화상 전화기의 모드를 수행하도록 하고, 상대측 전화기에서 전화가 걸려올 경우에 사용자가 수화기를 들었으면, 전화선에 연결된 하이브리드 및 DAA를 통하여 수신하는 신호 검출기에서 일반 전화기나 화상 전화기에 해당하는 신호의 여부를 전달하여 마이크로 프로세서에서 단속기를 제어하면서 신호 발생기에서 발생되는 단속톤을 하이브리드 및 DAA를 거치고 전화선을 통화여 출력하는 과정을 수행하도록 함으로써 화상 전화기와 일반 전화기의 기능을 동시에 수행하면서 모드의 전환이 자동으로 전환되도록 한 것이다.The present invention relates to an automatic switching device between a normal telephone and a video telephone, and detects whether a signal corresponding to the ordinary telephone or a video telephone is transmitted to a microprocessor by a signal detector received through a hybrid and a DAA connected to a telephone line, The interrupter under the control of the microprocessor is configured to output the interrupt tone generated by the signal generator, but when transmitting, the interrupter is generated by the signal generator by dialing the other party's telephone number and lifting the handset from the other side to control the interrupter from the microprocessor. After passing through the hybrid and DAA and outputting the telephone line through a call, connect the switch to the hybrid circuit of the other side to make a voice call. If there is, connect the changeover switch to the modem of one side to perform the mode of the video telephone, and if the user picks up the receiver when the telephone comes from the other side of the telephone, the signal detector received through the hybrid and DAA connected to the telephone line By transmitting the signal corresponding to the telephone or the video telephone, the microprocessor controls the interrupter and performs the process of outputting the intermittent tone generated by the signal generator through hybrid and DAA and by calling the telephone line. While switching functions simultaneously, the mode switch is automatically switched.

Description

Automatic Switching Device for Desk Phone and Video Phone

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 전체적인 구성을 나타낸 블럭도.2 is a block diagram showing the overall configuration of the present invention.

제3도는 본 발명의 전화 판별회로의 상세한 구성을 나타낸3 shows a detailed configuration of the telephone discrimination circuit of the present invention.

Claims

Signal detectors received through hybrid and DAA connected to a telephone line detect whether a signal corresponding to an ordinary telephone or a video telephone is transmitted to a microprocessor, and in an interrupter controlled by the microprocessor, an interrupt tone generated by a signal generator Automatic switching device of a standard telephone and a video telephone, characterized in that configured to output the.

When transmitting, dial the other party's telephone number, lift the handset from the other party, control the interrupter from the microprocessor, output the interruption tone generated by the signal generator through the hybrid and DAA, and then output it through the telephone line, then connect the changeover switch to the other hybrid circuit. To make a voice call, and if there is no response from the other party for a certain time, boil the handshaking, if there is a response from the other party, connect the telephone or switch to the modem of one side to perform the video telephone mode, and the telephone of the other party If the user picks up the receiver when a call is received, the signal detector receiving through the hybrid and DAA connected to the telephone line transmits the signal corresponding to the ordinary telephone or the video telephone and generates a signal while controlling the interrupter in the microprocessor. Automatic switching system for a desk phone and video phones to be performed by the process of outputting the intermittent tone through the phone line going through the hybrid and DAA generated from.