KR970004560A - How to send dual tone complex frequency signal in electronic switching system - Google Patents

How to send dual tone complex frequency signal in electronic switching system Download PDF

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Publication number
KR970004560A
KR970004560A KR1019950017358A KR19950017358A KR970004560A KR 970004560 A KR970004560 A KR 970004560A KR 1019950017358 A KR1019950017358 A KR 1019950017358A KR 19950017358 A KR19950017358 A KR 19950017358A KR 970004560 A KR970004560 A KR 970004560A
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KR
South Korea
Prior art keywords
frequency signal
complex frequency
dual tone
transmitting
tone complex
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Application number
KR1019950017358A
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Korean (ko)
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KR0138185B1 (en
Inventor
김홍한
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김광호
삼성전자 주식회사
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Priority to KR1019950017358A priority Critical patent/KR0138185B1/en
Publication of KR970004560A publication Critical patent/KR970004560A/en
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Publication of KR0138185B1 publication Critical patent/KR0138185B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

전자식 교환시스템에서 국선으로 이중톤 복합주파수신호를 송출하는 방법에 관한 것이다.The present invention relates to a method for transmitting a dual tone complex frequency signal to a trunk line in an electronic switching system.

2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention

이중톤 복합주파수신호를 송출시 음성신호 잡음이나 주위 잡음이 혼입됨에 따라 수신측에서 상기 이중톤 복합주파수신호를 잘못 인식하는 문제점을 해결한다.It solves the problem that the receiving side incorrectly recognizes the dual tone complex frequency signal as the voice signal noise or ambient noise is mixed when the dual tone complex frequency signal is transmitted.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

본 발명에 따른 이중톤 복합주파수신호 송출방법은, 전자식 교환시스템의 내선가입자가 외부가입자의 전화번호를 다이얼링할때 상기 다이얼링되는 전화번호에 해당하는 이중톤 복합주파수신호를 생성하는 이중톤 복합주파수신호 생성과정과, 상기 생성된 이중톤 복합주파수 신호를 국선으로 송출하는 복합주파수신호 송출과정과, 상기 생성된 이중톤 복합주파수신호를 송출하기 소정 시간 이전부터 상기 생성된 이중톤 복합주파수신호를 송출한 이후 소정 시간까지 상기 교환시시스템을 뮤트시키는 시스템 뮤트과정으로 구성한다.In the method for transmitting a dual tone complex frequency signal according to the present invention, a dual tone complex frequency signal for generating a dual tone complex frequency signal corresponding to the dialed telephone number when an extension subscriber of an electronic switching system dials a telephone number of an external subscriber. Generating a complex frequency signal for transmitting the generated dual tone complex frequency signal to a trunk line, and transmitting the generated dual tone complex frequency signal from a predetermined time before transmitting the generated dual tone complex frequency signal. After that, a system muting process mutes the system at the time of exchange.

4. 발명의 중요한 용도4. Important uses of the invention

키폰시스템 또는 사설교환기시스템에 연결되는 전화기.Telephones connected to key phone systems or private switching systems.

Description

전자식 교환시스템에서 이중톤 복합주파수신호 송출방법How to send dual tone complex frequency signal in electronic switching system

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

제3도는 본 발명에 따른 이중톤 복합주파수신호 송출동작을 설명하기 위한 도면, 제4도는 본 발명에 따른 이중톤 복합주파수신호 송출파형도.Figure 3 is a view for explaining the operation of the dual tone composite frequency signal transmission according to the present invention, Figure 4 is a dual tone composite frequency signal transmission waveform diagram according to the present invention.

Claims (4)

전자식 교환시스템에서 이중톤 복합주파수(DTMF)신호를 송출하는 방법에 있어서, 내선가입자가 외부가입자의 전화번호를 다이얼링할시 상기 다이얼링되는 전화번호에 해당하는 이중톤 복합주파수신호를 생성하는 이중톤 복합주파수신호 생성과정과, 상기 생성된 이중톤 복합주파수 신호를 상기 시스템이 연결되는 국선으로 송출하는 이중톤 복합주파수신호 송출과정과, 상기 생성된 이중톤 복합주파수 신호를 송출하기 소정 시간 이전부터 상기 생성된 이중톤 복합주파수신호를 송출한 이후 소정 시간까지 상기 교환시스템을 뮤트시키는 시스템 뮤트과정으로 구성됨을 특징으로 하는 이중톤 복합주파수신호 송출방법.A method for transmitting a dual tone complex frequency (DTMF) signal in an electronic switching system, comprising: a dual tone complex frequency signal that generates a dual tone complex frequency signal corresponding to the dialed telephone number when an extension subscriber dials a telephone number of an external subscriber; Generating a frequency signal, transmitting the generated dual tone complex frequency signal to a trunk line to which the system is connected, and generating the dual tone complex frequency signal from a predetermined time before transmitting the generated dual tone complex frequency signal. And a system muting process of muting the switching system until a predetermined time after transmitting the dual tone composite frequency signal. 제1항에 있어서, 상기 시스템 뮤트과정은, 상기 생성된 이중톤 복합주파수 신호를 송출하기 이전 50 내지 100밀리초부터 상기 생성된 이중톤 복합주파수신호를 송출한 이후 50 내지 100밀리초까지 상기 교환시스템을 뮤트시키는 것을 특징으로 하는 이중톤 복합주파수신호 송출방법.The system of claim 1, wherein the system muting process comprises: switching between 50 and 100 milliseconds before transmitting the generated dual tone complex frequency signal to 50 and 100 milliseconds after transmitting the generated dual tone complex frequency signal. A dual tone complex frequency signal transmitting method, characterized in that the system is muted. 전화기 및 이중톤 복합주파수(DTMF)신호를 생성하는 이중톤 복합주파수신호 생성수단을 포함하며, 국선회로를 통해 국선에 연결되는 전자식 교환시스템에서 이중톤 복합주파수신호를 송출하는 방법에 있어서, 상기 전화기상에서 외부 가입자의 전화번호가 눌리어질시 상기 이중톤 복합주파수신호 생성수단을 이용하여 상기 눌리어진 전화번호에 대응하는 이중톤 복합주파수신호를 생성하는 이중톤 복합주파수신호 생성과정과, 상기 이중톤 복합주파수신호 생성수단과 상기 국선회로를 연결함으로써 상기 생성된 이중톤 복합주파수신호를 상기 국선으로 송출하는 이중톤 복합주파수신호 송출과정과, 상기 생성된 이중톤 복합주파수 신호를 송출하기 소정 시간 이전부터 상기 생성된 이중톤 복합주파수 신호를 송출한 이후 소정 시간까지 상기 이중톤 복합주파수신호 생성수단과 상기 국선회로의 연결을 차단시키는 국선회로 차단과정으로 구성됨을 특징으로 하는 이중톤 복합주파수신호 송출방법.A telephone and a dual tone complex frequency signal generating means for generating a dual tone complex frequency (DTMF) signal, the method for transmitting a dual tone complex frequency signal in an electronic switching system connected to a trunk line through a trunk line circuit, A dual tone complex frequency signal generating process of generating a dual tone complex frequency signal corresponding to the pressed telephone number by using the dual tone complex frequency signal generating means when the telephone number of an external subscriber is pressed on the mobile terminal; A duplex tone frequency signal sending step of sending the generated duplex tone frequency signal to the trunk line by connecting a complex frequency signal generating means and the trunk line circuit, and a predetermined time before transmitting the generated duplex tone frequency signal; The duotone until a predetermined time after transmitting the generated duotone complex frequency signal; A dual tone complex frequency signal transmitting method, comprising: a trunk line circuit blocking process for interrupting a connection between a complex frequency signal generating unit and the trunk line circuit; 제3항에 있어서, 상기 국선회로 차단과정은, 상기 생성된 이중톤 복합주파수 신호를 송출하기 이전 50 내지 100밀리초부터 상기 생성된 이중톤 복합주파수 신호를 송출한 이후 50 내지 100밀리초까지 상기 이중톤 복합주파수신호 생성수단과 상기 국선회로의 연결을 차단시키는 것을 특징으로 하는 이중톤 복합주파수신호 송출방법.The method of claim 3, wherein the trunk line circuit blocking process comprises: 50 to 100 milliseconds before transmitting the generated dual tone complex frequency signal to 50 to 100 milliseconds after transmitting the generated dual tone complex frequency signal. A duplex tone frequency signal transmitting method characterized in that the connection between the duplex tone frequency signal generating means and the trunk line circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017358A 1995-06-24 1995-06-24 Electronic exchange system KR0138185B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950017358A KR0138185B1 (en) 1995-06-24 1995-06-24 Electronic exchange system

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Application Number Priority Date Filing Date Title
KR1019950017358A KR0138185B1 (en) 1995-06-24 1995-06-24 Electronic exchange system

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KR0138185B1 KR0138185B1 (en) 1998-07-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100877585B1 (en) * 2007-06-22 2009-01-07 서울통신기술 주식회사 system and method for controlling a home auto terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100877585B1 (en) * 2007-06-22 2009-01-07 서울통신기술 주식회사 system and method for controlling a home auto terminal

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KR0138185B1 (en) 1998-07-01

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