KR960039951A - Side Blanking Control of Wide Television - Google Patents

Side Blanking Control of Wide Television Download PDF

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Publication number
KR960039951A
KR960039951A KR1019950010474A KR19950010474A KR960039951A KR 960039951 A KR960039951 A KR 960039951A KR 1019950010474 A KR1019950010474 A KR 1019950010474A KR 19950010474 A KR19950010474 A KR 19950010474A KR 960039951 A KR960039951 A KR 960039951A
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KR
South Korea
Prior art keywords
signal
pulse
pulse generation
unit
start point
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KR1019950010474A
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Korean (ko)
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KR0156356B1 (en
Inventor
명영식
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배순훈
대우전자 주식회사
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Priority to KR1019950010474A priority Critical patent/KR0156356B1/en
Publication of KR960039951A publication Critical patent/KR960039951A/en
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Publication of KR0156356B1 publication Critical patent/KR0156356B1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/01Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/04Synchronising
    • H04N5/08Separation of synchronising signals from picture signals

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Details Of Television Scanning (AREA)

Abstract

본 발명은 16 : 9화면모드에서 4 : 3화면모드로 절환되면 수평불랭킹펄스생성회로를 이용하여 정확한 수평주사위치에서의 수평주사동작이 행해지도록 함으로써 과도주사량의 발생을 제거토록 한 와이드 텔레비전의 사이드블랭킹 제어장치를 제공하기 위한 것이다.According to the present invention, the horizontal scan operation at the correct horizontal scan position is performed by using the horizontal unranking pulse generation circuit when switching from 16: 9 screen mode to 4: 3 screen mode. It is to provide a side blanking control device.

이를 위해 본 발명은, 사용자에 의해 4 : 3화면모드가 선택됨에 따라 그 4 : 3화면모드에 맞는 사이드블랭킹동작이 행해지도록 제어하는 신호변환제어부(10)와, 동기분리부(5)로부터의 수평·수직동기신호를 입력받아 두 신호간의 동기를 일치시킨 신호를 펄스발생시작점 신호로서 상기 신호변환제어부(10)로 인가하는 펄스발생시작점 설정부(15), 상기 신호변환제어부(10)로부터 소정의 리세트신호와 트리거신호를 입력받아 4 : 3화면모드에 맞는 새로운사이드블랭킹신호용 펄스를 생성한 다음 그 펄스를 상기 신호변환제어부(10)로 인가하는 펄스발생수단(20) 및, 상기 신호변환제어부(10)의 제어하에 새로운 사이드블랭킹신호를 영상신호처리부(4)의 휘도출력단으로 인가하는 구동부(25)로 구성되고, 상기 신호변환제어부(10)는 4 : 3화면모드가 선택됨에 따라 상기 동기분리부(5)로부터의 수평·수직동기신호를 비반전시켜 상기 펄스발생시작점 설정부(15)로 인가한 다음 그 펄스발생시작점 설정부(15)로부터 입력되는 펄스발생시작점 신호를 상기 펄스발생수단(20)의 리세트 단자로 인가함과 더불어 상기 수평동기신호를 반전시킨 신호를 상기 펄스발생수단(20)의 트리거단자로 입력시켜 발진동작이 수행되도록 하고, 상기 펄스발생수단(20)으로부터의 펄스가 새로운 사이드블랭킹신호로서 휘도신호와 결합되도록 상기 구동부(25)를 제어하는 것을 특징으로 한다.To this end, according to the present invention, the signal conversion control unit 10 and the synchronization separating unit 5 control the side blanking operation according to the 4: 3 screen mode to be performed when the 4: 3 screen mode is selected by the user. Predetermined from the pulse generation start point setting unit 15 and the signal conversion control unit 10, which receives a horizontal / vertical synchronization signal and applies a signal obtained by synchronizing the two signals to the signal conversion control unit 10 as a pulse generation start point signal. Pulse generation means 20 for generating a new side blanking signal pulse suitable for the 4: 3 screen mode by receiving the reset signal and the trigger signal of and then applying the pulse to the signal conversion control unit 10, and the signal conversion. Under the control of the control unit 10, the driver unit 25 applies a new side blanking signal to the luminance output terminal of the image signal processing unit 4. The signal conversion control unit 10 is selected as the 4: 3 screen mode is selected. The horizontal and vertical synchronous signals from the synchronization separating unit 5 are inverted and applied to the pulse generation start point setting unit 15, and then the pulse generation start point signal inputted from the pulse generation start point setting unit 15 is received. The oscillation operation is performed by inputting a signal in which the horizontal synchronizing signal is inverted and applied to the reset terminal of the generating means 20 to the trigger terminal of the pulse generating means 20, and the pulse generating means 20. The driving unit 25 is controlled so that the pulse from is coupled with the luminance signal as a new side blanking signal.

Description

와이드 텔레비전의 사이드블랭킹(Side Blanking) 제어장치Side Blanking Control of Wide Television

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

제2도는 본 발명의 일실시예에 따른 와이드 텔레비전의 사이드블랭킹 제어장치를 설명하기 위한 회로도, 제3도는 제2도에 도시된 회로도의 각 부의 출력파형을 나타낸 도면이다.FIG. 2 is a circuit diagram illustrating a side blanking control apparatus for a wide television according to an embodiment of the present invention, and FIG. 3 is a diagram showing output waveforms of respective parts of the circuit diagram shown in FIG.

Claims (6)

사용자에 의해 4 : 3화면모드가 선택됨에 따라 그 4 : 3화면모드에 맞는 사이드블랭킹동작이 행해지도록 제어하는 신호변환제어부(10)와, 동기분리부(5)로부터의 수평·수직동기신호를 입력받아 두 신호간의 동기를 일치시킨 신호를 펄스발생시작점 신호로서 상기 신호변환제어부(10)로 인가하는 펄스발생시작점 설정부(15), 상기 신호변환제어부(10)로부터 소정의 리세트신호와 트리거신호를 입력받아 4 : 3화면모드에 맞는 새로운사이드블랭킹신호용 펄스를 생성한 다음 그 펄스를 상기 신호변환제어부(10)로 인가하는 펄스발생수단(20) 및, 상기 신호변환제어부(10)의 제어하에 새로운 사이드블랭킹신호를 영상신호처리부(4)의 휘도출력단으로 인가하는 구동부(25)로 구성되고, 상기 신호변환제어부(10)는 4 : 3화면모드가 선택됨에 따라 상기 동기분리부(5)로부터의 수평·수직동기신호를 비반전시켜 상기 펄스발생시작점 설정부(15)로 인가한 다음 그 펄스발생시작점 설정부(15)로부터 입력되는 펄스발생시작점 신호를 반전시켜 상기 펄스발생수단(20)의 리세트단자로 인가함과 더불어 상기 수평동기신호를 반전시킨 신호를 상기 펄스발생수단(20)의 트리거단자로 입력시켜 발진동작이 수행되도록 하고, 상기 펄스발생수단(20)으로부터의 펄스가 새로운 사이드블랭킹신호로서 휘도신호와 결합되도록 상기 구동부(25)를 제어하는 것을 특징으로 하는 와이드 텔레비전의 사이드블랭킹 제어장치.When the 4: 3 screen mode is selected by the user, the horizontal and vertical synchronous signals from the synchronization conversion unit 5 and the signal conversion control unit 10 for controlling the side blanking operation for the 4: 3 screen mode are performed. The pulse generation start point setting unit 15 and a predetermined reset signal and the trigger from the signal conversion control unit 10 are applied to the signal conversion control unit 10 as a pulse generation start point signal that receives the input signal in synchronization with the two signals. Pulse generation means 20 for generating a new side blanking signal pulse suitable for 4: 3 screen mode and then applying the pulse to the signal conversion controller 10 and the control of the signal conversion controller 10. And a driving unit 25 for applying a new side blanking signal to the luminance output terminal of the image signal processing unit 4, wherein the signal conversion control unit 10 is selected as the 4: 3 screen mode. Robu Non-inverting the horizontal and vertical synchronous signals of the data source, apply the pulse generation start point setting unit 15, and then invert the pulse generation start point signal inputted from the pulse generation start point setting unit 15 to generate the pulse generation means 20. The oscillation operation is performed by inputting the reset terminal of the pulse generating unit 20 and the signal inverting the horizontal synchronizing signal to the trigger terminal of the pulse generating unit 20. And controlling the driving unit (25) to be combined with the luminance signal as a side blanking signal. 제1항에 있어서, 상기 펄스발생시작점 설정부(15)는 단일의 논리회로소자로 구성된 것을 특징으로 하는 와이드 텔레비전의 사이드블랭킹 제어장치.The side blanking control apparatus for a wide television according to claim 1, wherein said pulse generation start point setting section (15) is composed of a single logic circuit element. 제2항에 있어서, 상기 논리회로소자는 앤드게이트로 이루어진 것을 특징으로 하는 와이드 텔레비전의 사이드블랭킹 제어장치.The side blanking control apparatus for a wide television according to claim 2, wherein said logic circuit element is composed of an end gate. 제1항에 있어서, 상기 펄스발생수단(20)은 상기 신호변환제어부(10)로부터 인가된 리세트신호를 기초로 트리거단자에 소정의 신호가 입력되면 발진동작을 수행하는 제1발진기(22)와, 상기 제1발진기(22)로부터의 발진신호가 트리거단자로 입력됨에 따라 상기 리세트신호를 기초로 발진하여 소정의 발진주파수를 상기 신호변환제어부(10)로 출력하는 제2발진기(24)로 구성된 것을 특징으로 하는 와이드 텔레비전의 사이드블랭킹 제어장치.The oscillator of claim 1, wherein the pulse generator 20 performs an oscillation operation when a predetermined signal is input to a trigger terminal based on a reset signal applied from the signal conversion controller 10. And a second oscillator 24 which oscillates based on the reset signal as the oscillation signal from the first oscillator 22 is input to the trigger terminal and outputs a predetermined oscillation frequency to the signal conversion controller 10. Side blanking control device for a wide television, characterized in that consisting of. 제4항에 있어서, 상기 제1 및 제2발진기(22, 24)는 각각 단안정 멀티바이브레이터로 이루어진 것을 특징으로 하는 와이드 텔레비전의 사이드블랭킹 제어장치.5. The apparatus of claim 4, wherein the first and second oscillators (22, 24) each comprise a monostable multivibrator. 제1항에 있어서, 상기 구동부(25)는 상호 반대되게 동작하는 복수의 트랜지스터(Q1, Q2)로 구성된 것을 특징으로 하는 와이드 텔레비전의 사이드블랭킹 제어장치.2. The side blanking control apparatus for a wide television according to claim 1, wherein the driver (25) is composed of a plurality of transistors (Q1, Q2) operating opposite to each other. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950010474A 1995-04-29 1995-04-29 Side blanking controlling apparatus of wide tv KR0156356B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950010474A KR0156356B1 (en) 1995-04-29 1995-04-29 Side blanking controlling apparatus of wide tv

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Application Number Priority Date Filing Date Title
KR1019950010474A KR0156356B1 (en) 1995-04-29 1995-04-29 Side blanking controlling apparatus of wide tv

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KR960039951A true KR960039951A (en) 1996-11-25
KR0156356B1 KR0156356B1 (en) 1998-11-16

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