KR920014016A - Existing number operation device when screening caller is connected - Google Patents

Existing number operation device when screening caller is connected Download PDF

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Publication number
KR920014016A
KR920014016A KR1019900020205A KR900020205A KR920014016A KR 920014016 A KR920014016 A KR 920014016A KR 1019900020205 A KR1019900020205 A KR 1019900020205A KR 900020205 A KR900020205 A KR 900020205A KR 920014016 A KR920014016 A KR 920014016A
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KR
South Korea
Prior art keywords
dtmf signal
ringtone
detect
operation device
bell
Prior art date
Application number
KR1019900020205A
Other languages
Korean (ko)
Inventor
조병모
라인식
Original Assignee
이진호
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 이진호 filed Critical 이진호
Priority to KR1019900020205A priority Critical patent/KR920014016A/en
Publication of KR920014016A publication Critical patent/KR920014016A/en

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Abstract

내용 없음No content

Description

선별 호출장치 연결시 기존 번호 동작 장치Existing number operation device when connecting sorting page device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 내부구조 블럭도, 제2도는 본 발명의 상세 회로도.1 is a block diagram of the internal structure of the present invention, Figure 2 is a detailed circuit diagram of the present invention.

Claims (3)

자동응답부, DTMF신호 유무검출부, 타이머 회로 및 증명 발생부로 이루어져 전화를 자동응답한후 일정시간(예:2-3초)안에 DTMF신호가 없으면 확장번호를 모르거나 기존의 7자리 전화번호로 통화를 시도하는 것으로 인지하고 벨을 울려 주므로써 선별호출기, 모뎀등과 하나의 국선에 공통 연결된 상태에서도 전화가 온것을 인지 가능토록 하는 것을 특징으로 하는 장치.It consists of automatic answering part, DTMF signal presence detection part, timer circuit and proof generating part, and if there is no DTMF signal within a certain time (e.g. 2-3 seconds) after the phone is automatically answered, the extension number is not known or the existing 7-digit phone number Recognizing that the attempt to ring the bell, the device, characterized in that the telephone comes to be able to recognize the call even when connected to a single call line, modem and the like. 제1항에서 공통 연결되어 사용중인 고안된 장치들의 벨소리를 제거하기 위하여 임의의(예:“0”번)DTMF신호를 발생시키고 이 신호를 감지하여 벨소리를 제거 하므로써 통화방해를 제거하게 하는 것을 특징으로 하는 장치.The method of claim 1 is to generate a random (eg, “0”) DTMF signal in order to remove the ringtone of the designed devices in common use and to detect the interference by removing the ringtone. Device. 제1항에서 벨신호를 감지하여 전원회로를 동작시키기 위하여 트랜지스터와 정전압 IC로 이루어져 평시 전원소모를 억제하게 하는 것을 특징으로 하는 장치.The device of claim 1, wherein the device comprises a transistor and a constant voltage IC to detect a bell signal to suppress a power consumption. ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900020205A 1990-12-10 1990-12-10 Existing number operation device when screening caller is connected KR920014016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900020205A KR920014016A (en) 1990-12-10 1990-12-10 Existing number operation device when screening caller is connected

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900020205A KR920014016A (en) 1990-12-10 1990-12-10 Existing number operation device when screening caller is connected

Publications (1)

Publication Number Publication Date
KR920014016A true KR920014016A (en) 1992-07-30

Family

ID=67537957

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900020205A KR920014016A (en) 1990-12-10 1990-12-10 Existing number operation device when screening caller is connected

Country Status (1)

Country Link
KR (1) KR920014016A (en)

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E601 Decision to refuse application