KR970078568A - White Border Generator Using Luminance Signal in Wide TV Receiver - Google Patents

White Border Generator Using Luminance Signal in Wide TV Receiver Download PDF

Info

Publication number
KR970078568A
KR970078568A KR1019960018594A KR19960018594A KR970078568A KR 970078568 A KR970078568 A KR 970078568A KR 1019960018594 A KR1019960018594 A KR 1019960018594A KR 19960018594 A KR19960018594 A KR 19960018594A KR 970078568 A KR970078568 A KR 970078568A
Authority
KR
South Korea
Prior art keywords
signal
supplied
switching
luminance
pll
Prior art date
Application number
KR1019960018594A
Other languages
Korean (ko)
Other versions
KR0165761B1 (en
Inventor
조민수
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 KR1019960018594A priority Critical patent/KR0165761B1/en
Publication of KR970078568A publication Critical patent/KR970078568A/en
Application granted granted Critical
Publication of KR0165761B1 publication Critical patent/KR0165761B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion 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
    • H04N7/0122—Conversion 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 the input and the output signals having different aspect ratios
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

본 발명은 와이드 텔레비젼 수상기에 있어 휘도신호를 이용한 화이트 보더 발생장치에 관한 것으로서, 종래에는 16:9의 비율을 갖는 화면에 4:3의 비율을 갖는 영상신호를 디스플레이하는 경우 블랭킹부분과 유효화면이 잘 구병되지 않거나, 유효화면의 영상신호가 실제보다 밝아지는 문제점을 가지고 있으므로 이를 감안하여 본 발명은 1/N 분주기에서 공급되는 기준 수평동기신호(H.ref)의 라이징 에지에서부터 PLL 및 클력발진부에서 공급되는 클럭펄스(CLK)를 카운팅하여 유효화면(S)이 시작되는 부분과 끝나는 부분에서 각각 하이 레벨의 스위칭신호(Sa)를 출력하는 스위칭신호 발생기와, 상기 스위칭신호 발생기에서 공급되는 스위칭신호(Sa)에 의해 클램프 회로에서 출력되는 휘도/색차신호(Y)(U)(V) 혹은 화이트 보더전압(Vc)(Vb)(Vc)을 선택하여 R.G.B 매트릭스에 공급하는 스위칭 IC를 구성함으로써, 화면의 보더에 화이트 보더를 디스플레이하여 유효화면과 블랭킹 부분을 보다 효과적으로 구별할 수 있도록 한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a white border generating apparatus using a luminance signal in a wide television receiver. In the related art, when a video signal having a 4: 3 ratio is displayed on a screen having a 16: 9 ratio, a blanking portion and an effective screen are separated. In view of this, the present invention provides a PLL and a force oscillation unit from the rising edge of the reference horizontal synchronization signal (H.ref) supplied from the 1 / N frequency divider. A switching signal generator for counting the clock pulse CLK supplied from the output signal and outputting a high level switching signal Sa at the beginning and ending portions of the valid screen S, and the switching signal supplied from the switching signal generator. Select the luminance / color difference signal (Y) (U) (V) or white border voltage (Vc) (Vb) (Vc) output from the clamp circuit by Sa By forming the switching IC for supplying to, it is one to display the white border to the border of the screen to more effectively distinguish the effective screen and a blanking part.

Description

와이드 텔레비젼 수상기에 있어 휘도신호르 이용한 화이트 보더 발생장치White Border Generator Using Luminance Signal in Wide TV Receiver

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

제1도는 본 발명의 일실시예에 따른 회로도.1 is a circuit diagram according to an embodiment of the present invention.

Claims (1)

클램프 전압(Va)에 의해 입력 영상신호(Vin)의 레벨을 조정하는 클램프 회로와, 상기 입력 영상신호를 복조하여 휘도신호(Y)와 색차신호(U)(V)를 출력하는 복조부와, 상기 복조된 휘도신호(Y)와 색차신호(U)(V)이 레벨을 조정하는 클램프 회로와, 상기 입력 영상신호에서 수평 동기신호(H.sync)를 분리하여 PLL 및 클럭 발진부에 출력하여 클램프 회로에 클램프 펄스(Clamp Pulse)를 공급하는 동기신호 분리부와, 상기 동기신호 분리부에서 공급되는 수평 동기신호(H.sync)와 1/N 분주기의 기준 수평 동기신호(H.ref)의 위상을 비교하면서 클럭펄스(CLK)를 발진하는 PLL 및 클럭 발진부와, 상기 PLL 및 클럭 발진부의 클럭펄스(CLK)를 1/N 분주하여 기준 수평동기신호(H.ref)를 궤환하는 1/N 분주기를 포함하여 구성된 텔레비젼 수상기에 있어서, 상기 1/N 분주기에서 공급되는 기준 수평동기신호(H.ref)의 라이징 에지에서부터 PLL 및 클릭발진부에서 공급되는 클럭펄스(CLK)를 카운팅하여 유효화면(S)이 시작되는 부분과 끝나는 부분에서 가가 "하이" 레벨의 스위칭신호(Sa)를 출력하는 스위칭신호 발생기; 상기 스위칭신호 발생기에서 공급되는 스위칭신호(Sa)에 의해 클램프 회로에서 출력되는 휘도/색차신호(Y)(U)(V)혹은 화이트 보더전압(Vc)(Vb)(Vb)을 선택하여 R.G.B 매트릭스에 공급하는 스위칭 IC를 더 포함하여 구성되어짐을 특징으로 하는 와이드 텔레비젼 수상기에 있어 휘도신호를 이용한 화이트 보더 발생장치.A clamp circuit for adjusting the level of the input video signal Vin by the clamp voltage Va, a demodulator for demodulating the input video signal and outputting a luminance signal Y and a color difference signal U; A clamp circuit for adjusting the level of the demodulated luminance signal Y and the color difference signal U and V, and a horizontal synchronizing signal H.sync is separated from the input image signal and output to the PLL and clock oscillator. A sync signal separator for supplying a clamp pulse to the circuit, a horizontal sync signal H.sync supplied from the sync signal separator, and a reference horizontal sync signal H.ref of a 1 / N divider. PLL and clock oscillator for oscillating clock pulse CLK while comparing phases, and 1 / N for feedbacking the reference horizontal synchronization signal H.ref by dividing the clock pulse CLK of the PLL and clock oscillator by 1 / N. In a television receiver including a divider, a reference number supplied from the 1 / N divider From the rising edge of the synchronization signal H.ref, the clock pulse CLK supplied from the PLL and the click oscillator is counted, and the switching signal Sa having a high " high " level at the beginning and the end of the valid picture S is counted. A switching signal generator for outputting a; The RGB matrix is selected by selecting the luminance / color difference signal (Y) (U) (V) or the white border voltage (Vc) (Vb) (Vb) output from the clamp circuit by the switching signal (Sa) supplied from the switching signal generator. And a switching IC for supplying to a white border generator using a luminance signal in a wide television receiver. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960018594A 1996-05-29 1996-05-29 White border apparatus using brightness signal in hdtv KR0165761B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960018594A KR0165761B1 (en) 1996-05-29 1996-05-29 White border apparatus using brightness signal in hdtv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960018594A KR0165761B1 (en) 1996-05-29 1996-05-29 White border apparatus using brightness signal in hdtv

Publications (2)

Publication Number Publication Date
KR970078568A true KR970078568A (en) 1997-12-12
KR0165761B1 KR0165761B1 (en) 1999-03-20

Family

ID=19460136

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960018594A KR0165761B1 (en) 1996-05-29 1996-05-29 White border apparatus using brightness signal in hdtv

Country Status (1)

Country Link
KR (1) KR0165761B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482473B1 (en) * 2002-02-20 2005-04-14 비오이 하이디스 테크놀로지 주식회사 Method for displaying a 4:3 mode picture on a 16:9 display panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482473B1 (en) * 2002-02-20 2005-04-14 비오이 하이디스 테크놀로지 주식회사 Method for displaying a 4:3 mode picture on a 16:9 display panel

Also Published As

Publication number Publication date
KR0165761B1 (en) 1999-03-20

Similar Documents

Publication Publication Date Title
KR930007272A (en) Closed Caption Broadcast Receiver
US4769705A (en) Deflection synchronizing apparatus
JP3131179B2 (en) Double window processing device for TV system
KR970078568A (en) White Border Generator Using Luminance Signal in Wide TV Receiver
CA2345559C (en) Horizontal synchronization for digital television receiver
KR970078469A (en) Color Insertion Device for Blanking in Wide TV Receiver
KR100206589B1 (en) Automatic image width control apparatus in case of letterbox input
KR970078695A (en) Pattern generator for vertical center line adjustment
KR970078693A (en) Pattern generator for vertical width adjustment
KR950024528A (en) Two-screen simultaneous viewing on wide television
KR970078694A (en) Pattern generator for horizontal center line adjustment
KR960008271Y1 (en) Sub-screen stabilizing circuit of pip television
KR960007154Y1 (en) Video clamping and blanking signal generating circuit
KR970078590A (en) Subtitle position information insertion device using back porch of video signal
KR960003443B1 (en) Letter display apparatus
KR970078608A (en) Information insertion device to inform the location of subtitles
KR0165763B1 (en) Caption position information detecting apparatus
JP3381097B2 (en) Superimpose device
KR970078696A (en) Pattern generator for horizontal width adjustment
JPH06217221A (en) Character broadcast receiver
KR970009282A (en) Dual screen device of TV receiver
KR200151026Y1 (en) Scrolling circuit of a wide-television
KR960005850Y1 (en) Sub-screen stabilized circuit in pip tv
JPH06326982A (en) Television receiver
KR970078420A (en) Pattern generator for vertical linearity adjustment

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20060705

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee