KR970024858A - FOCUS variable circuit according to horizontal mode change - Google Patents

FOCUS variable circuit according to horizontal mode change Download PDF

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Publication number
KR970024858A
KR970024858A KR1019950038537A KR19950038537A KR970024858A KR 970024858 A KR970024858 A KR 970024858A KR 1019950038537 A KR1019950038537 A KR 1019950038537A KR 19950038537 A KR19950038537 A KR 19950038537A KR 970024858 A KR970024858 A KR 970024858A
Authority
KR
South Korea
Prior art keywords
horizontal mode
focus
variable
mode change
circuit according
Prior art date
Application number
KR1019950038537A
Other languages
Korean (ko)
Other versions
KR0163157B1 (en
Inventor
박현수
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950038537A priority Critical patent/KR0163157B1/en
Publication of KR970024858A publication Critical patent/KR970024858A/en
Application granted granted Critical
Publication of KR0163157B1 publication Critical patent/KR0163157B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/227—Centering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting

Abstract

본 발명은 TV 수상기에서 포커스 포인트를 조정하여 TV 화면에 표시되는 영상 데이타의 중앙 부분이 가장 선명하게 나타나도록 하기 위한 수평모드 변화에 따른 포카스 가변회로에 관한 것으로, FBT(40)의 포커스 전압이 고정된 통상의 회로에 있어서, 마이컴(10)에서 제어되는 수평모드에 의해 스위칭 되는 스위칭수단과, 상기 FBT(40)의 포커스 전압을 임의로 가변하는 가변 수단을 더 포함하여 시청효과를 배가시킬 수 있는 것이다.The present invention relates to a focus variable circuit according to a horizontal mode change for adjusting a focus point in a TV receiver so that a central portion of image data displayed on a TV screen is most clearly displayed. The focus voltage of the FBT 40 is fixed. In the conventional circuit, a switching means switched by the horizontal mode controlled by the microcomputer 10 and a variable means for arbitrarily varying the focus voltage of the FBT 40 can further double the viewing effect. .

Description

수평 모드 변화에 따른 포커스(FOCUS) 가변회로FOCUS variable circuit according to horizontal mode change

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

제2도는 본 발명을 해결하기 위한 수평모드 변화에 따른 포커스(Focus)가변 회로도이다.2 is a focus variable circuit according to a horizontal mode change to solve the present invention.

Claims (3)

FBT(40)의 포커스 전압이 고정된 통상의 회로에 있어서, 마이컴(10)에서 제어되는 수평모드에 의해 스위칭 되는 스위칭수단과, 상기 FBT(40)의 포커스 전압을 임의로 가변하는 가변 수단을 더 포함하는 것을 특징으로 하는 수평모드 변화에 따른 포커스 가변회로.A conventional circuit in which the focus voltage of the FBT 40 is fixed, the circuit further includes switching means switched by a horizontal mode controlled by the microcomputer 10 and variable means for arbitrarily varying the focus voltage of the FBT 40. Focus variable circuit according to the horizontal mode change, characterized in that the. 제1항에 있어서, 상기 스위칭 수단은 마이컴(10)에서 출력되는 수평모드를 저항(R3),(R4)으로 분할하여 입력받는 트랜지스터(Q2)를 구비함을 특징으로 하는 수평모드 변화에 따른 포커스 가변회로.The focus according to the horizontal mode change according to claim 1, wherein the switching means comprises a transistor (Q2) inputted by dividing the horizontal mode output from the microcomputer (10) into resistors (R3) and (R4). Variable circuit. 제1항에 있어서, 상기 가변수단은 FBT(40) 의 포커스 전압을 임의로 조정하는 가변저항(VR1)을 구비함을 특징으로 하는 수평모드 변화에 따른 포커스 가변회로.The focus variable circuit according to claim 1, wherein the variable means has a variable resistor (VR1) for arbitrarily adjusting the focus voltage of the FBT (40). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950038537A 1995-10-31 1995-10-31 Focus control circuit in changing horizontal mode KR0163157B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038537A KR0163157B1 (en) 1995-10-31 1995-10-31 Focus control circuit in changing horizontal mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038537A KR0163157B1 (en) 1995-10-31 1995-10-31 Focus control circuit in changing horizontal mode

Publications (2)

Publication Number Publication Date
KR970024858A true KR970024858A (en) 1997-05-30
KR0163157B1 KR0163157B1 (en) 1999-01-15

Family

ID=19432177

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950038537A KR0163157B1 (en) 1995-10-31 1995-10-31 Focus control circuit in changing horizontal mode

Country Status (1)

Country Link
KR (1) KR0163157B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100588139B1 (en) * 1999-07-20 2006-06-09 삼성전자주식회사 Automatic controlling method and apparatus for focus voltage of display system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100588139B1 (en) * 1999-07-20 2006-06-09 삼성전자주식회사 Automatic controlling method and apparatus for focus voltage of display system

Also Published As

Publication number Publication date
KR0163157B1 (en) 1999-01-15

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