KR930005420A - Music signal automatic switching circuit - Google Patents

Music signal automatic switching circuit Download PDF

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Publication number
KR930005420A
KR930005420A KR1019910014678A KR910014678A KR930005420A KR 930005420 A KR930005420 A KR 930005420A KR 1019910014678 A KR1019910014678 A KR 1019910014678A KR 910014678 A KR910014678 A KR 910014678A KR 930005420 A KR930005420 A KR 930005420A
Authority
KR
South Korea
Prior art keywords
music source
external
signal
external music
music
Prior art date
Application number
KR1019910014678A
Other languages
Korean (ko)
Other versions
KR940004471B1 (en
Inventor
강신학
Original Assignee
강진구
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 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019910014678A priority Critical patent/KR940004471B1/en
Publication of KR930005420A publication Critical patent/KR930005420A/en
Application granted granted Critical
Publication of KR940004471B1 publication Critical patent/KR940004471B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

내용 없음.No content.

Description

음악신호 자동절체회로Music signal automatic switching circuit

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

제1도는 종래의 회로도,1 is a conventional circuit diagram,

제2도는 본 발명에 따른 회로도.2 is a circuit diagram according to the present invention.

Claims (4)

외부음악원 발생부(10)와 내부 음악원 발생부(40)를 구비한 사설교환 시스템의 음악신호 자동 절체회로에 있어서, 상기 외부 음악원 발생부(10)로 부터 발생되는 외부음악신호의 유무를 검출하는 외부음악원검출부(20)와, 상기 외부음악원 발생부(10)에서 발생된 외부음악신호와 상기 내부음악원 발생부(40)에서 발생된 내부음악 신호를 상기 외부음악원검출부(20)의 출력인 외부음악 신호의 검출 유무에 따라 선택 출력하는 음악원 선택부(50)로 구성함을 특징으로 하는 회로.A music signal automatic switching circuit of a private exchange system having an external music source generator (10) and an internal music source generator (40) for detecting the presence or absence of an external music signal generated from the external music source generator (10). External music which is an output of the external music source detector 20, an external music signal generated by the external music source generator 10, and an internal music signal generated by the internal music source generator 40, And a music source selecting section (50) for selecting and outputting signals depending on whether signals are detected or not. 제1항에 있어서, 상기 외부음악원검출부(20)와 상기 음악원 선택부(50)사이에 접속되어 상기 외부음악원검출부(20)에서 검출된 외부 음악원 신호가 음악원에 따라 일정시간 없거나 미약할때 불필요한 절체가 발생되지 않도륵 지연시키는 지연부(30)를 더 구비함을 특징으로 하는 회로.The method of claim 1, wherein the switching between the external music source detector 20 and the music source selector 50 is unnecessary when the external music source signal detected by the external music source detector 20 is constant or weak according to a music source. And a delay unit (30) for delaying even if no signal is generated. 제1항에 있어서, 상기 음악원 선택부(50)가 상기 외부음악 검출부(50)에서 외부 음악원 신호가 검출되지 않을 매 상기 내부음악원 발생부(40)에서 발생된 내부음악원 신호를 선택 출력하는 제2아날로그 스위치(52)와, 상기 외부음악원 검출부(20)에서 외부음악원 신호가 검출될 때 외부 음악원 선택 제어 신호를 발생하는 외부 음악신호제어부(53)와, 상기 외부음악신호 제어부(53)에서 발생된 외부음악원 선택 제어신호를 입력하여 상기 외부음악원 발생부(10)에서 발생된 외부 음악원 신호를 선택 출력하는 제2아날로그 스위치(51)로 구성함을 특징으로 하는 회로.The method of claim 1, wherein the music source selector 50 selects and outputs the internal music source signal generated by the internal music source generator 40 every time the external music source signal is not detected by the external music detector 50. An analog music switch 52, an external music signal controller 53 for generating an external music source selection control signal when an external music source signal is detected by the external music source detector 20, and an external music signal controller 53 And a second analog switch (51) for inputting an external music source selection control signal to selectively output the external music source signal generated by the external music source generator (10). 제2항에 있어서, 상기 지연부(30)가 상기 외부 음악원 검출부(20)에서 검출된 외부음악 신호가 일정시간 없을 매 불필요한 절체를 방지하기 위한 저항(R5) 및 캐패시터(C3)와, 상기 저항(R5) 및 캐패시터(C3)를 통해 출력된 신호를 입력하여 기준전압파 비교하여 출력하는 연산증폭기(OP2)와, 상기 연산증폭기(OP2)에서 비교출력된 신호를 분압하는 저항(R9-Rl0)으로 구성함을 특징으로 하는 회로.According to claim 2, wherein the delay unit 30, the resistor (R5) and capacitor (C3) for preventing unnecessary switching every time the external music signal detected by the external music source detector 20 is not constant, and the resistance An operational amplifier OP2 for inputting a signal output through the R5 and the capacitor C3 and comparing the reference voltage wave, and a resistor R9-R10 for dividing the signal output from the operational amplifier OP2. Circuit characterized in that the configuration. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910014678A 1991-08-24 1991-08-24 Automatic switching circuit of music signal KR940004471B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910014678A KR940004471B1 (en) 1991-08-24 1991-08-24 Automatic switching circuit of music signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910014678A KR940004471B1 (en) 1991-08-24 1991-08-24 Automatic switching circuit of music signal

Publications (2)

Publication Number Publication Date
KR930005420A true KR930005420A (en) 1993-03-23
KR940004471B1 KR940004471B1 (en) 1994-05-25

Family

ID=19319053

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910014678A KR940004471B1 (en) 1991-08-24 1991-08-24 Automatic switching circuit of music signal

Country Status (1)

Country Link
KR (1) KR940004471B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100348869B1 (en) * 2000-08-04 2002-08-17 시온합섬주식회사 Stockings knitting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100348869B1 (en) * 2000-08-04 2002-08-17 시온합섬주식회사 Stockings knitting machine

Also Published As

Publication number Publication date
KR940004471B1 (en) 1994-05-25

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