KR910003096Y1 - Horizontal position automatic control circuit of multi-system - Google Patents

Horizontal position automatic control circuit of multi-system Download PDF

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Publication number
KR910003096Y1
KR910003096Y1 KR2019870012973U KR870012973U KR910003096Y1 KR 910003096 Y1 KR910003096 Y1 KR 910003096Y1 KR 2019870012973 U KR2019870012973 U KR 2019870012973U KR 870012973 U KR870012973 U KR 870012973U KR 910003096 Y1 KR910003096 Y1 KR 910003096Y1
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South Korea
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horizontal
horizontal position
circuit
control circuit
output
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KR2019870012973U
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Korean (ko)
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KR890004003U (en
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전성호
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삼성전자 주식회사
안시환
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Priority to KR2019870012973U priority Critical patent/KR910003096Y1/en
Priority to DE3825890A priority patent/DE3825890A1/en
Priority to EG411/88A priority patent/EG18542A/en
Publication of KR890004003U publication Critical patent/KR890004003U/en
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Publication of KR910003096Y1 publication Critical patent/KR910003096Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • 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
    • H04N3/27—Circuits special to multi-standard receivers

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)
  • Details Of Television Scanning (AREA)

Abstract

내용 없음.No content.

Description

멀티시스템 수상기의 수평위치 자동 조절회로Horizontal position automatic control circuit of multi-system receiver

제1도는 종래의 회로도.1 is a conventional circuit diagram.

제2도는 본 고안의 회로도.2 is a circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1, 7 : 수평위치 조정부 2 : 톱니파 적분회로1, 7: Horizontal position adjusting unit 2: Sawtooth wave integration circuit

3 : 위상검파부 4 : 적분회로3: phase detector 4: integral circuit

5 : 수평 발진 및 수평출력부 6 : 50/60 HZ 판별부5: horizontal oscillation and horizontal output unit 6: 50/60 HZ discrimination unit

R1-R3: 저항 VR : 가변저항R 1 -R 3 : Resistance VR: Variable resistor

D1: 다이오드 C1-C3: 콘덴서D 1 : Diode C 1 -C 3 : Capacitor

본 고안은 멀티시스템 수상기의 수평위치 자동 조절회로에 관한 것이다. 텔레비젼 방송에는 각기 PAL, NTSC, SECAM 방식등이 있어 각기 다른 방송을 모두 수신할 수 있는 멀티시스템 수상기가 개발되고 있다.The present invention relates to a horizontal position automatic adjustment circuit of a multi-system receiver. There are PAL, NTSC, and SECAM methods for television broadcasting, and multi-system receivers are being developed that can receive all different broadcasts.

그러나 종래의 멀티시스템 수상기에서는 각기 다른 방식의 방송의 수신시 수평 위치가 가변되기 때문에 항상 수동으로 수평위치를 고정시켜야 되는 단점이 생기는 것이었다.However, the conventional multi-system receiver has a disadvantage in that the horizontal position is always manually fixed since the horizontal position is variable when receiving different types of broadcasts.

본 고안의 목적은 각기 다른 방송에 대하여 항상 스위치를 자동으로 고정시킬수 있는 멀티 시스템 수상기를 제공하고자 하는 것으로 50/60HZ 판별 회로의 스위칭 전압을 이용하여 NTSC방송 시스템의 수상시 자동 주파수 콘트롤 회로에 직류 전압이 중첩될 수 있는 수평위치 조정부를 구성시킨 것이다.The purpose of the present invention is to provide a multi-system receiver that can automatically lock the switch for different broadcasts at all times. By using the switching voltage of the 50 / 60HZ discrimination circuit, the DC voltage is applied to the automatic frequency control circuit in the NTSC broadcasting system. The horizontal position adjusting unit can be overlapped.

이를 첨부 도면에 의하여 상세히 설명하면 다음과 같다.This will be described in detail with reference to the accompanying drawings.

제1도는 종래의 회로도로서 수평위치 조정부(1)에 입력된 플라이백 펄스는 저항(R1) (R2)에 의하여 강하시킨 후 가변저항(VR) 및 콘덴서(C1)로 미지적분시켜 가변저항(VR)의 값에 따라 톱니파 적분회로(2)에서 톱니파 펄스의 기울기를 변화시키어 위상검파부(3)에 인가되는 수평동기 신호와의 위상점을 변황시켜 그 위상차에 대응하는 출력을 적분회로(4)에서 적분시키며 이 적분된 직류전압이 수평발진 및 수평출력부(5)로 출력되게 하여 수평 위치를 보상할 수 있도록 하였으나 가변저항(VR)으로 수평위치를 변화시키는데는 한계가 있는 동시에 각기 다른 방송의 수신시 항상 수동으로 절환시켜야 되는 것이었다.First turning the flyback pulse input to the horizontal position adjusting section (1) as a conventional circuit a resistor (R1) (R 2) then drop by the by the integral image to the variable resistor (VR) and a capacitor (C 1), a variable resistor The inclination of the sawtooth pulse is changed in the sawtooth integrating circuit 2 in accordance with the value of VR, the phase point with the horizontal synchronization signal applied to the phase detector 3 is changed, and the output corresponding to the phase difference is integrated. The integrated DC voltage is output to the horizontal oscillation and the horizontal output unit 5 to compensate for the horizontal position. However, there is a limit to changing the horizontal position with the variable resistor (VR). It was always necessary to switch manually when receiving a broadcast.

그러나 본 고안은 PAL 방식 시스템 및 SECAM 방식 시스템의 수평 주파수는 15625HZ이고 NTSC 방식 시스템이 수평 주파수가 15750HZ로서 이들의 시스템간의 수평 주파수의 차가 125HZ 생기는 수평 위치의 차를 보상하기 위해 수평발진 및 수평출력 회로에 직류 전압을 공급시켜 각기 다른 방식의 시스템에서 수평발진 회로에 동일한 직류 전압을 공급시킬수 있게 하기 위하여 제2도와 같이 구성시킨 것이다.However, the present invention uses horizontal oscillation and horizontal output circuits to compensate for the difference in horizontal position where the horizontal frequency of PAL system and SECAM system is 15625HZ and NTSC system has horizontal frequency of 15750HZ, and the horizontal frequency difference between these systems is 125HZ. In order to supply the DC voltage to the horizontal oscillation circuit in different systems, the same DC voltage is configured as shown in FIG.

제2도는 본 고안의 회로도로서 플라이백 트랜스(FBT)의 2차측에 저항(R1) 및 콘덴서(C1) (C2)로 구성된 톱니파 적분회로(2)가 연결되게 구성시키고 수평동기 신호가 공급되는 위상검파부(3)를 통하여 적분회로(4)와 연결되게 구성시킨후 50/60HZ 판별부(6)가 저항(R2) 및 다이오드(D1)로 구성된 수평위치조절부(7)를 통하여 적분회로(4)의 출력측과 연결되게 구성시켜 수평발진 및 수평출력부(5)에 직류전압이 공급되게 구성시킨 것이다.A second turning the flyback transformer the resistance on the outlet side of the (FBT) (R 1) and a capacitor (C 1) (C 2) saw-integration circuit (2) is configured to be connected and a horizontal synchronizing signal consists of a circuit diagram of the subject innovation The horizontal position adjusting unit 7 is composed of a resistor R 2 and a diode D 1 after the 50 / 60HZ determining unit 6 is configured to be connected to the integrating circuit 4 through the supplied phase detector 3. It is configured to be connected to the output side of the integrating circuit 4 through the horizontal oscillation and the DC voltage is supplied to the horizontal output unit (5).

틸레비젼에서는 일반적으로 수평발진단에서 방송국의 수평동기 신호와 일치하는 안정된 수평발진 주파수의 발생과 잡음에 의하여 수평동기가 흐뜨려지는 것을 방지하기 위하여 위상검파부(3) 및 적분회로(4)로서 자동주파수 콘트롤 회로가 구성되게 하고 있다.In the TV set, the phase detector 3 and the integrating circuit 4 are generally used to prevent the horizontal synchronization caused by noise and the generation of a stable horizontal oscillation frequency consistent with the horizontal synchronization signal of the broadcasting station. The automatic frequency control circuit is configured.

즉, 수평출력단의 플라이백 트랜스(FBT)에서 발생된 펄스를 저항(R1) 및 콘덴서(C1) (C2)로 구성된 톱니파 적분회로(2)에서 톱니파로 정형해서 위상검파부(3)에 인가시키며 위상검파부(3)에서 수평동기 신호와 위상을 비교하여 그 위상차에 해당하는 출력을 적분회로(4)에서 적분시킨 직류전압이 수평발진 및 수평출력부(5)에 공급되게 한 것으로 수평발진 회로의 발진 주파수는 이 궤환되는 직류 전압에 의하여 항상 일정하게 고정된다.That is, the pulse generated from the flyback transformer FBT of the horizontal output stage is shaped into a sawtooth wave in the sawtooth integrating circuit 2 composed of the resistors R 1 and the capacitors C 1 and C 2 , and the phase detector 3 It is applied to the horizontal oscillation and the horizontal output section 5 by applying the voltage to the horizontal detection signal by comparing the phase with the phase detection section 3 and comparing the phase. The oscillation frequency of the horizontal oscillation circuit is always fixed constantly by this feedback DC voltage.

또한 멀티시스템에서는 PAL 및 SECAM 방식과 NTSC 방식간의 차(수직주파수로 인한 상 사이즈 및 복조방식의 차이)를 보정하기 위하여 50/60HZ 판별부(6)가 구성되어 있어 NTSC 방송 시스템 수상시에는 「H레벨」의 상태 신호가 출력되고 PAL 및 SECAM 방송 시스템의 수상시에는 「L레벨」의 상태 신호가 출력하게된 회로가 있다.In addition, in the multi-system, a 50 / 60HZ discriminator 6 is configured to correct the difference between the PAL and SECAM and NTSC methods (difference in image size and demodulation due to vertical frequency). Level signal is output, and there is a circuit in which the status signal of "L level" is output when the PAL and SECAM broadcasting systems are received.

본 고안은 이와 같은 50/60HZ 판별부(6)의 스위칭 출력을 이용한 것으로 NTSC 방송 시스템의 수상시에는「H레벨」의 상태 신호가 수평위치 조정부(7)의 다이오드(D1) 및 고저항(R2)을 통하여 노우드점(B)에 직류전압(약 0.2V)을 중첩시켜 공급하기 때문에(평상시 PAL : 5.125V, NTSC : 5.329V)각기 다른 방송 수신에도 모두 5.329V의 직류 전압이 수평발진 및 수평출력부(5)에 인가되므로서 동일한 위치의 화상이 재현하게 되는 것이다.The present invention utilizes the switching output of the 50 / 60HZ discrimination unit 6, and when receiving the NTSC broadcasting system, the status signal of the "H level" is the diode D 1 of the horizontal position adjusting unit 7 and the high resistance ( Since DC voltage (approximately 0.2V) is superimposed on Norwood Point B through R 2 ) (normally PAL: 5.125V, NTSC: 5.329V), the DC voltage of 5.329V is horizontal even for different broadcast reception. It is applied to the oscillation and the horizontal output unit 5 to reproduce the image of the same position.

이상에서와 같이 본 고안은 멀티 시스템에서 각기 다른 방송 수신 여부를 감지하는 50/60HZ 판별부(6)의 출력을 이용하여 각기 다른 방송 수신시에도 항상 일정한 직류 레벨의 전원을 수평발진 회로에 가할 수 있어 항상 동일위치의 화상을 재현할 수가 있는 것으로 기존의 멀티시스템 수상기의 회로를 그대로 사용할 수 있는 이점이 있는 것이다.As described above, the present invention can always apply a constant DC level power to the horizontal oscillation circuit even when receiving different broadcasts by using the output of the 50 / 60HZ discriminator 6 which detects different broadcast receptions in a multi-system. Therefore, it is possible to always reproduce the image of the same position, which is an advantage that the circuit of the existing multi-system receiver can be used as it is.

Claims (1)

톱니파 적분회로(2)가 위상검파부(3)를 통하여 적분회로(4)와 연결된 멀티시스템 수상기 회로에 있어서, 적분회로(4)의 출력과 합성되게 50/60HZ 판별부(6)가 다이오드(D1) 및 저항(R2)으로 구성된 수평위치 조정부(7)와 연결되게 구성시킨 멀티 시스템 수상기의 수평위치 자동 조정회로.In the multi-system receiver circuit in which the sawtooth integration circuit 2 is connected to the integration circuit 4 via the phase detector 3, the 50 / 60HZ discriminating unit 6 is combined with the output of the integration circuit 4 to form a diode ( A horizontal position automatic adjustment circuit of a multi-system receiver configured to be connected to a horizontal position adjusting unit (7) consisting of D 1 ) and a resistor (R 2 ).
KR2019870012973U 1987-07-31 1987-07-31 Horizontal position automatic control circuit of multi-system KR910003096Y1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR2019870012973U KR910003096Y1 (en) 1987-07-31 1987-07-31 Horizontal position automatic control circuit of multi-system
DE3825890A DE3825890A1 (en) 1987-07-31 1988-07-29 Automatic horizontal hold circuit for a multi-system receiver
EG411/88A EG18542A (en) 1987-07-31 1988-07-31 An automatic horizontal holder circuit for a multi-system receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870012973U KR910003096Y1 (en) 1987-07-31 1987-07-31 Horizontal position automatic control circuit of multi-system

Publications (2)

Publication Number Publication Date
KR890004003U KR890004003U (en) 1989-04-14
KR910003096Y1 true KR910003096Y1 (en) 1991-05-10

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Application Number Title Priority Date Filing Date
KR2019870012973U KR910003096Y1 (en) 1987-07-31 1987-07-31 Horizontal position automatic control circuit of multi-system

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KR (1) KR910003096Y1 (en)
DE (1) DE3825890A1 (en)
EG (1) EG18542A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027058A (en) * 1990-02-26 1991-06-25 Tektronix, Inc. Multi-standard video option for oscilloscope

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2963905D1 (en) * 1978-11-27 1982-11-25 Philips Nv Circuit for generating a synchronisable sawtooth voltage
EP0024860B1 (en) * 1979-08-23 1984-03-14 Rca Corporation Dual standard television vertical deflection system

Also Published As

Publication number Publication date
KR890004003U (en) 1989-04-14
DE3825890C2 (en) 1991-11-14
EG18542A (en) 1993-06-30
DE3825890A1 (en) 1989-02-09

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