KR970004806A - How to determine the ante sushi / arm broadcasting method - Google Patents

How to determine the ante sushi / arm broadcasting method Download PDF

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Publication number
KR970004806A
KR970004806A KR1019950018594A KR19950018594A KR970004806A KR 970004806 A KR970004806 A KR 970004806A KR 1019950018594 A KR1019950018594 A KR 1019950018594A KR 19950018594 A KR19950018594 A KR 19950018594A KR 970004806 A KR970004806 A KR 970004806A
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KR
South Korea
Prior art keywords
input time
function step
ntsc
input
time difference
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KR1019950018594A
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Korean (ko)
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KR0158834B1 (en
Inventor
윤태군
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배순훈
대우전자 주식회사
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Priority to KR1019950018594A priority Critical patent/KR0158834B1/en
Publication of KR970004806A publication Critical patent/KR970004806A/en
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Publication of KR0158834B1 publication Critical patent/KR0158834B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

본 발명은 엔티에스시/팔 방송방식의 판별방법에 관한 것으로, 특히 연속적으로 입력되는 수직동기신호의 입력시간간격을 일정횟수판단하고 그 판단결과에 따라 방송방식을 판별하도록 하므로써, 노이즈의 영향에 관계없이 방송방식을 정확히 판별하게 되므로 이에따라 텔레비젼 시스템의 신뢰성을 증가시키도록 함은 물론 간편한 방식에 의해 방향신호의 판별동작을 신속히 실행하게 되므로 시스템의 기능성도 향상되도록 한다.The present invention relates to a method for discriminating an OS / ARM broadcast system. In particular, the present invention relates to a method of discriminating the broadcast system according to the determination result by determining the input time interval of the vertical synchronization signal input continuously and determining the broadcast method according to the determination result. Irrespective of the broadcast method, the broadcast system can be accurately determined, thereby increasing the reliability of the television system. Therefore, the operation of discriminating the direction signal can be quickly performed by a simple method, thereby improving the functionality of the system.

Description

엔티에스시/팔 방송방식의 판별방법How to determine the ante sushi / arm broadcasting method

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

제3도는 본 발명이 적용되는 TV 시스템을 설명하는 블럭도이다.3 is a block diagram illustrating a TV system to which the present invention is applied.

Claims (2)

입력되는 수직동기신호의 입력시간차 (T)가 NTSC방식의 60[Hz] 주파수범위안에 드는지를 비교판단하는 NTSC 판별기능단계(S4)와, 이 NTSC 판별기능단계(S4)중에 판단한 결과 입력시간간격(T,T=T2-T1)이 60[Hz]보다 작을 경우는 카운트수단의 값을 0으로 놓고 나중 입력된 수직동기신호(T2)를 노이즈로 판단하는 제1디스카드기능단계(S5)와, 상기 NTSC 판별기능단계(S4)중에 판단한 결과 입력시간차격(T,T=T-T1가 60[Hz] 보다 큰 경우는 카운트수단의 값을 0로 놓고 낮ㅇ 입력된 수직동기신호T2를 노이즈로 판단하여 입력시간차 T의 T1은 그대로 유지시키는 제1노이즈기능단계(S7)와 상기 NTSC 판별기능단계(S4)중에 판단한 결과 입력시간(T)가 60[Hz]와 일치할 경우는 입력시간차(T)의 T1을 T2로 전환시키고 카운트수단을 1 증가시키는 제1계속판별기능단계(S8)와, 이제 1 계속판별기능단계(S8) 후에 카운트수단의 판별회수(N)를 판단하여 설정된 횟수에 이를 경우는 입력되는 수직동기신호가 NTSC방식의 신호임을 확정하는 NTSC 확정단계(S10)와, 이 NTSC 확정단계(S10) 후에 입력되는 수직동기신호의 입력시간간격(T)가 PAL 방식의 50[Hz] 주파수 범위내에 드는지를 비교판단하는 PAL 판별기능단계(S6)로 이루어지는 것을 특징으로 하는 엔티에스시/팔 방송방식의 판별방법.The input time interval as a result of judging during the NTSC discrimination function step (S4) and the NTSC discrimination function step (S4) for comparing and determining whether the input time difference (T) of the input vertical synchronization signal falls within the 60 [Hz] frequency range of the NTSC method. When (T, T = T 2 -T 1 ) is less than 60 [Hz], the first display function step of setting the value of the counting means to 0 and judging the later input vertical synchronization signal T 2 as noise ( S5) and as a result of the determination during the NTSC discrimination function step S4, if the input time difference T, T = TT 1 is greater than 60 [Hz], the value of the count means is set to 0 and the low vertical sync signal T is input. When the input time T coincides with 60 [Hz] as a result of the determination between the first noise function step S7 and the NTSC discrimination function step S4 in which 2 is judged as noise and T 1 of the input time difference T is kept as it is. from the first function continues to determine step (S8) of converting an input time difference of T 1 (T) with T 2 was increased, the counting means, now still 1 After the separate function step (S8), the determination frequency (N) of the counting means is determined, and when the set number is reached, the NTSC confirmation step (S10) of confirming that the input vertical synchronization signal is an NTSC signal, and the NTSC confirmation step ( Anti-SAL / arm broadcasting comprising a PAL discrimination function step (S6) for comparing and determining whether the input time interval T of the vertical synchronization signal inputted after S10) falls within the 50 [Hz] frequency range of the PAL method. Method of Discrimination 제1항에 있어서, 상기 PAL판별기능단계(S6) 이후에 입력시간차(T, T=T2-T1)가 50[Hz] 보다 작을 경우는카운트수단의 값을 0으로 놓고 나중 입력된 수직동기신호(T2)를 노이스로 판단하는 제2디스카드기능단계(S11)와, 상기PAL 판별기능단계(S6) 중에 판단한 결과 입력시간간격(T=T2-T1)가 50[Hz] 보다 큰 경우는 카운트수단의 값을 0으로 놓고나중 입력된 수직동기신호(T2)를 노이즈로 판단하여 입력시간차 T의 T1은 그대로 유지시키는 제1노이즈 기능단계(S12)와, 상기 PAL 판별기능단계(S6) 중에 판단한 결과 입력시간차(T)가 50[Hz]와 일치할 경우는 입력시간차(T)의 T1을 T2로전환시키고 카운트수단을 1 증가시키는 제2 계속판별기능단계(S13)와, 이 제1계속판별기능단계(S13) 후에 카운트수단의판별회수(N)를 판단하여 설정된 횟수에 이를 경우는 입력되는 수직동기신호가 PAL 방식의 신호임을 확정하는 PAL 확정단계(S15)가 구비되는 것을 특징으로 하는 엔티에스시/팔 방송방식의 판별방법.The method according to claim 1, wherein if the input time difference (T, T = T 2 -T 1 ) is smaller than 50 [Hz] after the PAL discriminating function step (S6), the value of the count means is set to 0 and later input vertically. The second display function step S11 for determining the synchronization signal T 2 as noise and the PAL determination function step S6 determine that the input time interval T = T 2 -T 1 is 50 [Hz]. If larger, the first noise function step (S12) of determining the value of the counting means to 0 and determining the later input vertical synchronization signal T 2 as noise to maintain T 1 of the input time difference T as it is, and the PAL determination When the input time difference T coincides with 50 [Hz] as a result of the determination during the functional step S6, the second continuous discrimination function step of converting T 1 of the input time difference T to T 2 and increasing the counting means by 1 ( S13), and after the first continuous discrimination function step S13, judging the discrimination number N of the counting means to reach the set number of times. Es entity in / arm determination method of the broadcasting system, characterized in that the call is provided with a PAL confirmation step (S15) for confirming that the signal of the PAL system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950018594A 1995-06-30 1995-06-30 Descrimination method of ntsc/pal broadcasting type KR0158834B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950018594A KR0158834B1 (en) 1995-06-30 1995-06-30 Descrimination method of ntsc/pal broadcasting type

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Application Number Priority Date Filing Date Title
KR1019950018594A KR0158834B1 (en) 1995-06-30 1995-06-30 Descrimination method of ntsc/pal broadcasting type

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KR970004806A true KR970004806A (en) 1997-01-29
KR0158834B1 KR0158834B1 (en) 1998-12-15

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KR100743756B1 (en) * 2005-09-05 2007-07-30 엘지전자 주식회사 Method for controlling a image of an image display device

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