KR920019133A - Hands-free speaker sound interruption circuit - Google Patents

Hands-free speaker sound interruption circuit Download PDF

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Publication number
KR920019133A
KR920019133A KR1019910003950A KR910003950A KR920019133A KR 920019133 A KR920019133 A KR 920019133A KR 1019910003950 A KR1019910003950 A KR 1019910003950A KR 910003950 A KR910003950 A KR 910003950A KR 920019133 A KR920019133 A KR 920019133A
Authority
KR
South Korea
Prior art keywords
hands
free
band filter
speaker sound
filter means
Prior art date
Application number
KR1019910003950A
Other languages
Korean (ko)
Inventor
나상택
Original Assignee
정몽헌
현대전자산업 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 정몽헌, 현대전자산업 주식회사 filed Critical 정몽헌
Priority to KR1019910003950A priority Critical patent/KR920019133A/en
Publication of KR920019133A publication Critical patent/KR920019133A/en

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Abstract

내용 없음No content

Description

핸즈프리 스피커음 끊김 방지회로Hands-free speaker sound interruption circuit

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

제1도는 본 발명의 일실시예를 나타내는 핸즈프리의 상세 블럭도.1 is a detailed block diagram of a hands-free representation of an embodiment of the present invention.

Claims (1)

수신 오디오 라인과 송신 오디오 라인이 연결된 핸즈프리 I, C(2), 상기 핸즈프리 I, C(2)에 연결된 스피커(3), 상기 핸즈프리 I, C(2)에 연결된 증폭기(4), 상기 증폭기(4)에 연결된 마이크로(5)로 구성된 핸즈프리의 링백톤이 끊기지 않게 하기 위한 핸즈프리 스피커음 끊김 방지회로에 있어서; 상기 핸즈프리 I, C(2)에 연결되어 링백톤이 인가되면 "하이"를 출력하는 링백톤 대역 여파수단(1), 상기 핸즈프리 I, C(2)에 연결되어 통화중 소리가 인가되면 "하이"를 출력하는 통화중 소리 대역 여파수단(6), 상기 링백톤 대역 여파수단(1)과 통화중 소리 대역 여파수단(6)의 출력단과 입력단이 연결되고 출력단은 상기 증폭기(4)의 인에이블 단자에 연결된 논리합 수단(7)으로 구성되어 링백톤이 끊기지 않게 하는 것을 특징으로 하는 핸즈프리 스피커음 끊김 방지회로.Handsfree I, C (2) connected to a receiving audio line and a transmitting audio line, a speaker 3 connected to the handsfree I, C (2), an amplifier 4 connected to the handsfree I, C (2), and the amplifier ( A hands-free speaker sound break prevention circuit for preventing a hands-free ringback tone composed of micros (5) connected to 4) from being cut off; Ring back tone band filter means 1, which is connected to the hands-free I and C (2) and outputs "high" when ringback tone is applied, and is connected to the hands-free I and C (2), and "high" &Quot; " output ring and input terminal of the ring back tone band filter means 1 and the ring back tone band filter means 1 and the busy sound band filter means 6 for outputting " Hands-free speaker sound break prevention circuit, characterized in that the ring-back tone is not interrupted by a logical sum means (7) connected to the terminal. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019910003950A 1991-03-12 1991-03-12 Hands-free speaker sound interruption circuit KR920019133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910003950A KR920019133A (en) 1991-03-12 1991-03-12 Hands-free speaker sound interruption circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910003950A KR920019133A (en) 1991-03-12 1991-03-12 Hands-free speaker sound interruption circuit

Publications (1)

Publication Number Publication Date
KR920019133A true KR920019133A (en) 1992-10-22

Family

ID=67400655

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910003950A KR920019133A (en) 1991-03-12 1991-03-12 Hands-free speaker sound interruption circuit

Country Status (1)

Country Link
KR (1) KR920019133A (en)

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application