KR930001716A - External signal monitoring device on TV receiver - Google Patents

External signal monitoring device on TV receiver Download PDF

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Publication number
KR930001716A
KR930001716A KR1019910009689A KR910009689A KR930001716A KR 930001716 A KR930001716 A KR 930001716A KR 1019910009689 A KR1019910009689 A KR 1019910009689A KR 910009689 A KR910009689 A KR 910009689A KR 930001716 A KR930001716 A KR 930001716A
Authority
KR
South Korea
Prior art keywords
unit
signal
voltage
frequency
generating
Prior art date
Application number
KR1019910009689A
Other languages
Korean (ko)
Inventor
강종석
Original Assignee
이종수
금성알프스전자 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.)
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Publication date
Application filed by 이종수, 금성알프스전자 주식회사 filed Critical 이종수
Priority to KR1019910009689A priority Critical patent/KR930001716A/en
Publication of KR930001716A publication Critical patent/KR930001716A/en

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Abstract

내용 없음No content

Description

TV수상기에서의 외부 신호 모니터링 장치External signal monitoring device in TV receiver

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

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

Claims (1)

외부전화기(1)와 병렬 접속된 전화선로를 통하여 입력되는 링깅신호를 직류로 변환하여 필요로 하는 시간동안 아날로그 신호를 출력하는 직류전압 출력회로부(2)와;스위치(S1)온시 소정의 멜로디음을 송출하는 멜로디발생부(3)와;상기 직류전압 출력회로부(2) 또는 멜로디 발생부(3)로 부터 트리거링되는 신호를 공급원으로 하여 소정의 발진주파수를 생성하는 발진부(4)와;상기 발진부(4)로 부터 출력되는 발진주파수의 세력이 부하변동에 영향이 미치지 않도록 하는 동시에 스퓨리어스 성분을 제거하여 방향성 결합기(D. C)와 연결시키는 밴드패스필터부(5)와;상기 밴드패스필터부(5)를 통하여 전송되어온 RF신호를 각각 상기 발진부(4)의 발진주파수(f1, f2)에 동조시키는 주파수 동조부(6)와;상기 주파수 동조부(6)로 부터 출력되는 신호주파수를 각각 검파하여 직류전압을 생성하는 직류전압발생부(7)와;상기 직류전압발생부(7)에서 검파된 직류전압을 래치시켜 후단의 폰트표시부(9)에 공급하는 직류전압래치부(8)와;초기에 상기 직류전압래치부(8)를 인에이블시킨 상태에서 중앙처리장치(92)의 감시루틴중에 트리거링되어 온스크린 디스플레이(94)를 통해 병렬 인터페이스부(91)의 데이타값에 따라 각각 또는 2개의 폰트를 디스플레이 하는 폰트표시부(9)와;TV 수상기로 부터 출력되는 RF신호를 필터링하여 상기 주파수 동조부(6)에 입력시키는 고역통과필터부(10)를 구비함을 특징으로 하는 TV수상기에서의 외부신호 모니터링 장치.A DC voltage output circuit unit 2 for converting a ringing signal input through a telephone line connected in parallel with an external telephone 1 to a DC and outputting an analog signal for a required time; and a predetermined melody sound when the switch S1 is turned on. A melody generating unit (3) for transmitting a signal; an oscillating unit (4) generating a predetermined oscillation frequency by using a signal triggered from the DC voltage output circuit unit (2) or the melody generating unit (3) as a supply source; A band pass filter (5) for removing the spurious component and connecting the directional coupler (D. C) to prevent the force of the oscillation frequency output from (4) from affecting the load fluctuation; A frequency tuner 6 for tuning the RF signal transmitted through the oscillator 4 to the oscillation frequencies f 1 and f 2 of the oscillator 4; and a signal frequency output from the frequency tuner 6; Each detected A DC voltage generator 7 for generating a DC voltage; a DC voltage latch 8 for latching the DC voltage detected by the DC voltage generator 7 and supplying it to the font display unit 9 at a later stage; Triggered during the monitoring routine of the central processing unit 92 with the DC voltage latch unit 8 initially enabled, respectively, or 2 depending on the data value of the parallel interface unit 91 via the on-screen display 94. A font display unit (9) for displaying two fonts; and a high pass filter unit (10) for filtering the RF signal output from the TV receiver and inputting it to the frequency tuning unit (6). External signal monitoring device. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019910009689A 1991-06-12 1991-06-12 External signal monitoring device on TV receiver KR930001716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910009689A KR930001716A (en) 1991-06-12 1991-06-12 External signal monitoring device on TV receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910009689A KR930001716A (en) 1991-06-12 1991-06-12 External signal monitoring device on TV receiver

Publications (1)

Publication Number Publication Date
KR930001716A true KR930001716A (en) 1993-01-16

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ID=67440698

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910009689A KR930001716A (en) 1991-06-12 1991-06-12 External signal monitoring device on TV receiver

Country Status (1)

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KR (1) KR930001716A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101631119B1 (en) 2015-07-28 2016-06-16 김윤미 Pounding apparatus of rice polishing and cleaned barley
KR20200038198A (en) * 2018-10-02 2020-04-10 연세대학교 산학협력단 A Substrate for blood vessel anastomosis including shape memory polymers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101631119B1 (en) 2015-07-28 2016-06-16 김윤미 Pounding apparatus of rice polishing and cleaned barley
KR20200038198A (en) * 2018-10-02 2020-04-10 연세대학교 산학협력단 A Substrate for blood vessel anastomosis including shape memory polymers

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E601 Decision to refuse application