KR880002343A - Telephone circuit with built-in hold and mute circuits - Google Patents

Telephone circuit with built-in hold and mute circuits Download PDF

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Publication number
KR880002343A
KR880002343A KR1019860005548A KR860005548A KR880002343A KR 880002343 A KR880002343 A KR 880002343A KR 1019860005548 A KR1019860005548 A KR 1019860005548A KR 860005548 A KR860005548 A KR 860005548A KR 880002343 A KR880002343 A KR 880002343A
Authority
KR
South Korea
Prior art keywords
circuit
hold
section
switch
mute
Prior art date
Application number
KR1019860005548A
Other languages
Korean (ko)
Other versions
KR890005368B1 (en
Inventor
이지훈
Original Assignee
금성통신 주식회사
이재연·하인츠 디터 케루트
금성통신주식회사
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 금성통신 주식회사, 이재연·하인츠 디터 케루트, 금성통신주식회사 filed Critical 금성통신 주식회사
Priority to KR1019860005548A priority Critical patent/KR890005368B1/en
Publication of KR880002343A publication Critical patent/KR880002343A/en
Application granted granted Critical
Publication of KR890005368B1 publication Critical patent/KR890005368B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/16—Automatic or semi-automatic exchanges with lock-out or secrecy provision in party-line systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

내용 없음No content

Description

홀드 회로와 뮤트회로가 내장된 전화기회로Telephone circuit with built-in hold and mute circuits

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

제1도는 본 발명에 따른 홀드회로와 뮤트회로가 내장된 전화기회로의 블럭도이다.1 is a block diagram of a telephone circuit incorporating a hold circuit and a mute circuit according to the present invention.

Claims (1)

인터페이스 회로부(100), 홀드 회로부(200), 네트워크회로부(300), 스위치부 (400), 다이얼 회로부(500)및 뮤트회로부(600)로 구성되고 있는 전화기에 있어서, 후크스위치(HS), 홀드스위치(SW). SCR, 콘덴서(C2)및 저항(R1)(R2)등으로 구성된 스위치부(400)가 인터페이스회로부(100)의 +단에 연결되어 있으며, LED, 트랜지스터(TR1),(TR2), 다이오드(D1), 콘덴서(C1)및 저항(R3)(R4)(R5)(R6)(R7)(R8)구성된 홀드회로부(200)가 스위치부(400)의 한쪽단과 인터페이스 회로부(100)의-단 사이에 연결되어있고, 트랜지스터(TR3)(TR4)와 다이오드(D2)(D3)로 구성된 뮤트회로부 (600)가 홀드회로부(200), 네트워크회로부(300)및 다이얼 회로부(500)에 연결된 구성으로 되어 있어서 홀드 상태가 자동해제될 수 있으며 홀드 상태시에 송화기가 뮤트상태로 될 수 있도록 한 것을 특징으로 하는 홀드회로와 뮤트회로가 내장된 전화기 회로.In the telephone comprising the interface circuit section 100, the hold circuit section 200, the network circuit section 300, the switch section 400, the dial circuit section 500, and the mute circuit section 600, the hook switch HS and the hold Switch (SW). A switch unit 400 consisting of an SCR, a capacitor C2, and a resistor R1, R2, etc. is connected to the + terminal of the interface circuit unit 100, and includes an LED, a transistor TR1, a TR2, and a diode D1. ), A holding circuit section 200 composed of a capacitor C1 and a resistor R3 (R4) (R5) (R6) (R7) (R8) between one end of the switch section 400 and the-end of the interface circuit section 100. It is connected to the, and the mute circuit portion 600 composed of transistors TR3 (TR4) and diodes (D2) (D3) is configured to be connected to the hold circuit portion 200, the network circuit portion 300 and the dial circuit portion 500 The telephone circuit with a hold circuit and a mute circuit, characterized in that the hold state can be automatically released and the transmitter can be muted during the hold state. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860005548A 1986-07-08 1986-07-08 Telephone with holding circuit and muting circuit KR890005368B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860005548A KR890005368B1 (en) 1986-07-08 1986-07-08 Telephone with holding circuit and muting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860005548A KR890005368B1 (en) 1986-07-08 1986-07-08 Telephone with holding circuit and muting circuit

Publications (2)

Publication Number Publication Date
KR880002343A true KR880002343A (en) 1988-04-30
KR890005368B1 KR890005368B1 (en) 1989-12-23

Family

ID=19251010

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860005548A KR890005368B1 (en) 1986-07-08 1986-07-08 Telephone with holding circuit and muting circuit

Country Status (1)

Country Link
KR (1) KR890005368B1 (en)

Also Published As

Publication number Publication date
KR890005368B1 (en) 1989-12-23

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