KR980007327A - Polarity Inversion Detection Circuit - Google Patents

Polarity Inversion Detection Circuit Download PDF

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Publication number
KR980007327A
KR980007327A KR1019960020378A KR19960020378A KR980007327A KR 980007327 A KR980007327 A KR 980007327A KR 1019960020378 A KR1019960020378 A KR 1019960020378A KR 19960020378 A KR19960020378 A KR 19960020378A KR 980007327 A KR980007327 A KR 980007327A
Authority
KR
South Korea
Prior art keywords
signal
polarity inversion
detection circuit
inversion detection
tip
Prior art date
Application number
KR1019960020378A
Other languages
Korean (ko)
Other versions
KR0184499B1 (en
Inventor
김영모
Original Assignee
김광호
삼성전자 주식회사
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960020378A priority Critical patent/KR0184499B1/en
Publication of KR980007327A publication Critical patent/KR980007327A/en
Application granted granted Critical
Publication of KR0184499B1 publication Critical patent/KR0184499B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/248—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for metering arrangements or prepayment telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/04—Transistors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1313—Metering, billing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

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

극성반전 감지회로에 관한 것이다.It relates to a polarity inversion detection circuit.

2. 발명이 해결하고자 하는 기술적 과제2. Technical problem to be solved by the invention

극성반전 감지회로를 단순하게 구성한다.Simple configuration of the polarity inversion detection circuit.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

트랜지스터는 팁신호와 링신호를 입력받아 상기 팁신호가 링신호에 비하여 전위가 높을 경우에 도통되고, 낮을 경우에 도통되지 않고, 출력부는 상기 트랜지스터의 도통에 대응하여 극성반전 감지신호를 출력한다.The transistor receives the tip signal and the ring signal, and the tip signal is turned on when the potential is higher than that of the ring signal, and is not conducted when the tip signal is low, and the output unit outputs a polarity inversion detection signal corresponding to the conduction of the transistor.

4. 발명의 중요한 용도4. Important uses of the invention

키폰시스템에서 사용되어질 수 있다.Can be used in key phone systems.

Description

극성반전 감지회로Polarity Inversion Detection Circuit

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

제2도는 본 발명에 따른 극성반전 감지회로를 도시한 것.2 shows a polarity inversion detecting circuit according to the present invention.

Claims (1)

극성 반전 감지회로에 있어서, 팁신호와 링신호를 입력받아 상기 팁신호가 링신호에 비하여 전위가 높을 경우에 도통하고, 낮을 경우에 도통되지 않는 트랜지스터와, 상기 트랜지스터의 도통에 대응하여 극성반전 감지 신호를 출력하는 출력부를 구비하는 것을 특징으로 하는 극성반전 감지회로.In the polarity inversion sensing circuit, a tip signal and a ring signal are input, and the tip signal is turned on when the potential is higher than the ring signal, and is turned off when the tip signal is low. Polarity inverting detection circuit comprising an output unit for outputting a signal.
KR1019960020378A 1996-06-07 1996-06-07 Inversion sensing circuit KR0184499B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960020378A KR0184499B1 (en) 1996-06-07 1996-06-07 Inversion sensing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960020378A KR0184499B1 (en) 1996-06-07 1996-06-07 Inversion sensing circuit

Publications (2)

Publication Number Publication Date
KR980007327A true KR980007327A (en) 1998-03-30
KR0184499B1 KR0184499B1 (en) 1999-05-15

Family

ID=19461127

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960020378A KR0184499B1 (en) 1996-06-07 1996-06-07 Inversion sensing circuit

Country Status (1)

Country Link
KR (1) KR0184499B1 (en)

Also Published As

Publication number Publication date
KR0184499B1 (en) 1999-05-15

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