KR970024891A - Horizontal Synchronous Position Automatic Control Device in External Egg, Ground, Rain (R, G, B) Mode - Google Patents

Horizontal Synchronous Position Automatic Control Device in External Egg, Ground, Rain (R, G, B) Mode Download PDF

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Publication number
KR970024891A
KR970024891A KR1019950036573A KR19950036573A KR970024891A KR 970024891 A KR970024891 A KR 970024891A KR 1019950036573 A KR1019950036573 A KR 1019950036573A KR 19950036573 A KR19950036573 A KR 19950036573A KR 970024891 A KR970024891 A KR 970024891A
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South Korea
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signal
sync
horizontal
input
data
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KR1019950036573A
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Korean (ko)
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KR0164967B1 (en
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박재영
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구자홍
엘지전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/66—Circuits for processing colour signals for synchronous demodulators

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Synchronizing For Television (AREA)
  • Details Of Television Scanning (AREA)

Abstract

본 발명은 티브이에서 외부 R,G,B 입력시 RF신호와 입력되는 외부 R,G,B 신호와의 수평동기의 편차를 자동으로 제어하여 주도록 하므로서, 어떠한 신호를 수신하더라도 안정된 화면을 시청자에 제공하도록 한 외부 알,지,비(R,G,B) 모드에서 수평동기위치 자동제어장치와 방법에 관한 것이다.The present invention is to automatically control the horizontal sync deviation between the RF signal and the external R, G, B signal input when the TV input external R, G, B, providing a stable screen to the viewer no matter what signal received The present invention relates to a horizontal synchronous position automatic control device and method in an external R, G, B mode.

종래 R,G,B 모드에서 수평동기제어장치는 생산공정에 있어서, 1칩1C부(12)에 인가되는 전압레벨을 조정하여 주는 가변저항(VR1)의 값을 조정하여 고정시켜 두므로서, RF신호에서 R,G,B 신호의 수평위치는 맞추어져 있으나, 외부에서 입력되는 R,G,B 신호 및 FB신호의 수평위치가 고정시킨 가변저항(VR1)에 의한 전압의 레벨값과 일치하지 않게 되므로, 외부 R,G,B 신호입력시 수평위치가 R,G,B 모드에서 틀어져 보이게 되므로 불필요한 노이즈 화면이 보이게 되는 문제점이 있었다.In the conventional R, G, and B modes, the horizontal synchronous control device adjusts and fixes the value of the variable resistor VR1 for adjusting the voltage level applied to the one chip 1C unit 12 in the production process. The horizontal positions of the R, G, and B signals in the RF signal are aligned, but the horizontal positions of the externally input R, G, and B signals and the FB signal do not coincide with the level values of the voltage by the variable resistor VR1. Since the horizontal position is distorted in the R, G, and B modes when the external R, G, and B signals are input, there is a problem that an unnecessary noise screen is displayed.

본 발명은 이와같은 종래의 문제점을 해결하기 위하여 수직동기신호와 수평동기신호 및 FB신호를 인식하여 RF신호모드와 외부 R,G,B 신호모드에 있어서, 어느 신호가 입력되던지 간에 수평동기위치에 맞도록 마이컴으로 하여금 1칩1C의 AFC단에 인가되는 전압값을 수평동기신호(H-Sync)와 수직동기신호(V-Sync) 및 FB신호를 이용하여 R,G,B 모드에 따라 적절하게 제어하여 줄 수 있도록 하므로서, 시청자에게 보다 좋은 화질을 제공할 수 있도록 한 것이다.The present invention recognizes the vertical synchronous signal, the horizontal synchronous signal and the FB signal in order to solve such a conventional problem, and in the RF signal mode and the external R, G, B signal mode, the horizontal synchronous position of which signal Using the horizontal sync signal (H-Sync), vertical sync signal (V-Sync), and FB signal, the microcomputer applies the voltage value applied to the AFC stage of 1Chip 1C so that it is appropriate according to the R, G, and B modes. In order to provide a better picture quality to viewers.

Description

외부 알, 지, 비(R, G, B)모드에서 수평동기위치 자동제어장치와 방법Horizontal Synchronous Position Automatic Control Device in External Egg, Ground, Rain (R, G, B) Mode

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

제3도는 본 발명 외부 R,G,B모드에서 수평동기위치 자동제어장치의 블록구성도,Figure 3 is a block diagram of a horizontal synchronous position automatic control device in the external R, G, B mode of the present invention,

제4도는 (가)∼(라)는 본 발명 외부 R,G,B 모드에서 수평동기위치 자동제어장치의 R,G,B모드의 예를 보인 도면,4 is a diagram showing examples of the R, G and B modes of the automatic horizontal position control device in the external R, G and B modes of the present invention.

제5도는 본 발명 외부 R,G,B 모드에서 수평동기위치 자동제어 방법의 과정을 보인 플로우챠트.5 is a flowchart illustrating a process of a method for automatically controlling horizontal synchronous position in an external R, G, and B mode of the present invention.

Claims (2)

외부 R,G,B신호와 FB신호를 수신하는 수신부(1)와, 수신부(1)에서 수신된 외부 R,G,B신호와 FB신호를 입력받아 외부 R,G,B신호와 RF신호를 복조하여 얻은 RF의 R,G,B신호를 FB신호에 의해 스위칭절환 하도록 하는 1칩IC부(2)를 포함하는 R,G,B신호모드에서 수평동기위치 제어장치에 있어서, 입력되는 수평동기신호(H-Sync)와 수직동기신호(V-Sync)와, 상기 수신부(1)로부터 인가되는 FB신호에 의하여 R,G,B모드상태를 파악하여 수평동기위치 조정 제어신호를 출력하는 마이컴(3)과, 마이컴(3)의 수평동기위치 조정 제어신호를 입력받아 DC전압으로 변환시키는 D/A변화부(4)로 구성된 것을 특징으로 하는 외부 알,지,비( R,G,B)모드에서 수평동기위치 자동제어장치.The receiver 1 receives the external R, G, B signals and the FB signal, and receives the external R, G, B signals and the RF signal received from the receiver 1 In the horizontal synchronous position control device in the R, G, B signal mode including a one-chip IC unit 2 for switching the R, G, and B signals obtained by demodulation to FB signals. The microcomputer (H-Sync) and the vertical synchronization signal (V-Sync), and the microcomputer that grasps the R, G, B mode state by the FB signal applied from the receiver 1 and outputs a horizontal synchronization position adjustment control signal ( 3) and an external egg, finger, ratio (R, G, B), characterized in that it is composed of a D / A change part 4 which receives the horizontal synchronization position adjustment control signal of the microcomputer 3 and converts it into a DC voltage. Horizontal Synchronous Position Automatic Control Mode. 초기전원이 인가되어진 후, 데이터1의 카운타 변수인 N과 데이터2의 카운타 변수인 M을 초기화 시킨 후, 수직동기신호(V-Sync)를 입력받아 수직동기신호가 로우(Low)일 때, FB신호의 상태를 판단하게 되는 제1과정과, 제1과정 판단결과 수직동기신호(V-Sync)가 로우일 때 FB신호가 로우이면 RF신호모드라고 판단하여 데이터1의 카운타 변수인 N에 1를 추가하고, 데이터2의 카운타 변수인 M은 0으로 한 후, N이 2이상인가를 판단하게 되는 제2과정과, 제2과정 판단결과 N이 2이상이며 데이터1를 리드하고, N이 2보다 작으면 기억되어 있는 마지막 데이터를 리드하게 되는 제3과정과, 상기 제1과정 판단결과 수직동기신호(V-Sync)가 로우일 때 FB신호가 하이이면 수평동기신호(H-Sync)를 입력받아 수평동기신호(H-Sync)가 로우일 때 FB신호가 하이인지 로우인지 판단하게 되는 제4과정과, 제4과정 판단결과 수평동기신호(H-Sync)가 로우일 때 FB신호가 로우이면 상기 제2과정을 반복수행하고, FB신호가 하이이면 수직동기신호(V-Sync)가 입력되는가를 판단하게 되는 제5과정과, 제5과정 판단결과 수직동기신호(V-Sync)가 입력되지 않았으면 상기 제4과정을 반복수행하고, 수직동기신호(V-Sync)가 입력되면 수직동기신호(V-Sync)를 입력받고, 데이터2 카운타 변수M은 1를 추가하고 데이터 카운타 변수N은 0으로 한 후, M이 2이상인가를 판단하게 되는 제6과정과, 제6과정 판단결과 M이 2이상이면 데이터2를 리드하고, M이 2보다 작으면 기억되어 있는 마지막 데이터를 리드하게 되는 제7과정과, 상기 제3과정과 제7과정 완료 후 리모콘으로부터 제어신호가 입력되었는가를 판단하여 제어신호가 입력되었으면 리모콘으로부터 입력된 제어신호에 따라 제3과정에서 리드된 데이터를 변경하여 저장한 후 제어신호로 출력하게 되고, 리모콘으로부터 제어신호 입력되지 않았으면 리드한 데이터를 그대로 제어신호로 출력하게 되는 제8과정과, 제8과정 이후 전원이 계속 유지되면 N이 0인가를 판단하여 N이 0이면 수직동기신호(V-Sync)를 입력하고, N이 0이 아니면 수직동기신호(V-Sync)의 입력없이 수직동기신호(V-Sync)가 로우일 때 FB의 상태를 판단하게 되는 제1과정을 반복 수행하는 제9과정으로 이루어지는 것을 특징으로 하는 외부 알,지,비(R,G,B,)모드에서 수평동기위치 자동제어방법.After the initial power is applied, after initializing the counter variable N of data 1 and the counter variable M of data 2, FB is input and the vertical sync signal is low. If the FB signal is low when the vertical synchronization signal (V-Sync) is low, the first process to determine the state of the signal is determined to be an RF signal mode. In addition, the second variable M of data 2 is 0, and the second process determines whether N is 2 or more, and the second process determines that N is 2 or more and leads data 1, and N is greater than 2. If the FB signal is high when the vertical process signal (V-Sync) is low, the third process leads to the last data stored when it is small, and the horizontal process signal (H-Sync) is received. Fourth to determine whether the FB signal is high or low when the H-Sync signal is low If the FB signal is low when the horizontal sync signal (H-Sync) is low, the second process is repeated. If the FB signal is high, the vertical sync signal (V-Sync) is input. If the fifth process to be judged and the fifth process is determined that the vertical synchronization signal (V-Sync) has not been input, the fourth process is repeated. When the vertical synchronization signal (V-Sync) is input, the vertical synchronization signal ( V-Sync), the data 2 counter variable M is added to 1 and the data counter variable N is set to 0, and the sixth process of determining whether M is two or more, and the sixth process determination result M is 2 If abnormal, the data 2 is read; if M is less than 2, the seventh step of reading the last stored data; and after the completion of the third and seventh steps, it is determined whether a control signal is input from the remote controller. Is entered, the third section according to the control signal input from the After changing and storing the data read in the positive data, and outputting it as a control signal, if the control signal is not input from the remote controller, the eighth step of outputting the read data as a control signal as it is, and the power is maintained after the eighth step If N is 0, it inputs V-Sync if N is 0. If N is not 0, V-Sync is low without input of V-Sync. The horizontal synchronization position automatic control method in the external R, G, B (R, G, B,) mode, characterized in that it consists of a ninth process of repeatedly performing the first process to determine the state of the FB. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950036573A 1995-10-23 1995-10-23 Apparatus and method for automatically controlling horizontal synchronization position in r.g.b mode KR0164967B1 (en)

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KR1019950036573A KR0164967B1 (en) 1995-10-23 1995-10-23 Apparatus and method for automatically controlling horizontal synchronization position in r.g.b mode

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KR970024891A true KR970024891A (en) 1997-05-30
KR0164967B1 KR0164967B1 (en) 1999-03-20

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