KR970078607A - Subtitle location information detection device - Google Patents

Subtitle location information detection device Download PDF

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Publication number
KR970078607A
KR970078607A KR1019960018589A KR19960018589A KR970078607A KR 970078607 A KR970078607 A KR 970078607A KR 1019960018589 A KR1019960018589 A KR 1019960018589A KR 19960018589 A KR19960018589 A KR 19960018589A KR 970078607 A KR970078607 A KR 970078607A
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KR
South Korea
Prior art keywords
signal
sync
supplied
pulse
vertical
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KR1019960018589A
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Korean (ko)
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KR0165763B1 (en
Inventor
조민수
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배순훈
대우전자 주식회사
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Priority to KR1019960018589A priority Critical patent/KR0165763B1/en
Publication of KR970078607A publication Critical patent/KR970078607A/en
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Publication of KR0165763B1 publication Critical patent/KR0165763B1/en

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    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Television Systems (AREA)

Abstract

본 발명은 자막위치 정보 검출장치에 관한 것으로, 종래에는 화면에 디스플레이되는 자막위치에 관한 정보를 알 수 없어 자막의 위치를 정확하게 조정하지 못하는 결점을 가지고 있었다. 본 발명은 수직/수평 동기신호 분리부의 수평동기신호(H.sync)에 의해 스위칭 동작하여 버퍼에서 출력되는 영상신호중 화면에 디스플레이되는 영상신호만을 통과시키는 스위칭 IC와, 상기 수직/수평 동기신호 분리부에서 출력되는 수평동기신호를 반전시키는 인버터와, 상기 반전 수평동기신호(H.sync)의 라이징에서부터 상기 클럭발진수단에서 공급되는 클럭펄스(CLK)를 카운팅하여 각 영상신호의 프론트로치가 검출되는 지점(NCLK)에서하이레벨의 체크펄스(S1)를 생성하는 프론트포치 체크용 펄스 발생기와, 상기 프론트포치 체크용 펄스 발생기에서 공급되는 체크펄스(S1)에 의해 상기 스위칭 IC에서 공급되는 영상신호중 자막위치정보를 검출하여 시작펄스와 끝펄스를 생성하는 D 플립/플롭과, 상기 수직/수평 동기신호 분리부에서 공급되는 수직 동기신호(V.sync)에 의해인에이블되어 상기 D 플립/플롭과, 상기 수직/수평 동기신호 분리부에서 공급되는 수직 동기신호(V.sync)에 희해 인에이블되어 상기 D 플립/플롭에서 공급되는 시작 펄스에서부터 상기 1/N 분주기에서 공급되는 기준 수평동기신호(H.ref)를 끝펄스가 검출되기까지 카운팅하면서 하이레벨의 자막위치정보를 출력하는 카운터를 구성하여 자막위치에 대한 정보를 검출함으로써, 자막위치를 정확하게 조정할 수 있는 것이다.The present invention relates to an apparatus for detecting caption position information. In the related art, information on caption position displayed on a screen cannot be known, and thus, the caption position cannot be accurately adjusted. The present invention provides a switching IC for switching only a video signal displayed on a screen among video signals output from a buffer by switching by a horizontal sync signal (H.sync) of the vertical / horizontal sync signal separator, and the vertical / horizontal sync signal separator Horizontal synchronization signal output from A high level at the point NCLK at which the front latch of each video signal is detected by counting a clock pulse CLK supplied from the clock oscillation means from the rising of the inverted horizontal synchronization signal H.sync. The start pulse is detected by detecting the caption position information of the video signal supplied from the switching IC by the front porch check pulse generator for generating the check pulse S1 and the check pulse S1 supplied from the front porch check pulse generator. And a D flip / flop for generating an end pulse and a vertical sync signal (V.sync) supplied from the vertical / horizontal sync signal separator to enable the D flip / flop and the vertical / horizontal sync signal. The reference horizontal synchronization signal H.re supplied from the 1 / N divider from the start pulse supplied from the D flip / flop is enabled by the vertical synchronization signal V.sync supplied from the negative side. The subtitle position can be accurately adjusted by configuring a counter for outputting the high level subtitle position information while counting f) until the end pulse is detected, and detecting the subtitle position information.

Description

자막위치 정보 검출장치Subtitle location information detection device

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

제1도는 본 발명의 일실시예에 따른 회로도, 제2도는 본 발명의 일실시예에 따른 타이밍도이다.1 is a circuit diagram according to an embodiment of the present invention, Figure 2 is a timing diagram according to an embodiment of the present invention.

Claims (1)

입력 영상신호(Vin)를 완충 증폭하도록 되어 있는 완충수단과, 상기 입력 영상신호(Vin)에 포함되어 있는 수평 동기신호(H.sync)와 수직 동기신호(H.sync)를 분리하도록 되어 있는 수직/수평 동기신호 분리수단과,상기 수직/수평 동기신호 분리수단의 수평 동기신호(H.sync)와 1/N 분주수단의 기준 수평 동기신호(H.ref)의 위상을 비교하여 클럭 발진수단의 발진 주파수를 제어하도록 되어 있는 PLL과, 상기 PLL의 제어하에 클럭펄스(CLK)를 발진하도록 되어 있는 클럭 발진수단과, 상기 클럭 발진수단의 클럭펄스(CLK)를 1/N 의 기준 수평 동기신호(H.ref)로 분주하도록 되어 있는 1/N 분주수단을 포함하여 구성된 텔레비전 수상기에 있어서, 상기 수직/수평 동기신호 분리수단의 수평동기신호(H.sync)에 의해 완충수단에서 출력되는 영상신호중 화면에 디스플레이되는 영상신호만을 통과시키도록 되어 있는 스위칭수단; 상기 동기신호 분리수단에서 출력되는 수평 동기신호(H.sync)를 반전시키도록 되어 있는 반전수단; 상기 반전 수평동기신호의 라이징에서부터 상기 클럭발진수단에서 공급되는 클럭펄스(CLK)를 카운팅하여 각 영상신호의 프로트로치가 검출되는 지점(NCLK)에서 “하이” 레벨의 체크펄스(S1)를 생성하도록 되어 있는 프로트포치 체크용 펄스 발생수단; 상기 프론트포치 체크용 펄스 발생수단에서 공급되는 체크펄스(S1)에 의해 상기 스위칭수단에서 공급되는 영상신호 중 자막위치정보를 검출하여 시작펄스와 끝펄스를 생성하여 후단으로 출력되도록 되어 있는 D 플립/플롭; 상기 수직/수평 동기신호 분리수단에서 공급되는 수직 동기신호(V.sync)에 의해 인에이블되어 상기 D 플립/플롭에서 공급되는 시작 펄스에서부터 상기 1/N 분주수단에서 공급되는 수평동기신호(H.ref)를 카운팅하여 끝펄스가 검출되기까지 “하이” 레벨의 자막위치정보를 출력하도록 되어 있는 카운팅수단을 더 포함하여 구성되어짐을 특지으로 하는 자막위치 정보 검출장치.A buffer means for buffering and amplifying the input video signal Vin, and a vertical means for separating the horizontal sync signal H.sync and the vertical sync signal H.sync included in the input video signal Vin. / Horizontal synchronizing signal separating means, and the phase of the horizontal oscillating signal (H.sync) of the vertical / horizontal synchronizing signal separating means and the reference horizontal synchronizing signal (H.ref) of the 1 / N division means by comparing the phase of the clock oscillation means A PLL configured to control the oscillation frequency, a clock oscillation means configured to oscillate a clock pulse CLK under the control of the PLL, and a clock pulse CLK of the clock oscillation means 1 / N reference horizontal synchronizing signal ( In a television receiver comprising 1 / N dividing means arranged to divide by H.ref, a screen among video signals output from the buffer means by a horizontal synchronous signal (H.sync) of the vertical / horizontal synchronizing signal separating means. Video scene displayed on Switching means adapted to pass only; Inverting means adapted to invert the horizontal synchronizing signal H.sync output from the synchronizing signal separating means; The inverted horizontal synchronization signal Counting the clock pulse CLK supplied from the clock oscillation means from the rising of the signal to generate a "high" level check pulse S1 at the point NCLK at which the prochroach of each video signal is detected. Pulse generating means for; D flip / which detects the subtitle position information among the video signals supplied from the switching means by the check pulse S1 supplied from the front porch check pulse generating means, generates a start pulse and an end pulse, and outputs it to the rear end. Flop; The horizontal synchronous signal H. which is enabled by the vertical synchronous signal V.sync supplied from the vertical / horizontal synchronous signal separating means and supplied from the 1 / N division means from the start pulse supplied from the D flip / flop. and counting means for outputting the "high" level caption position information until the end pulse is detected by counting ref). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960018589A 1996-05-29 1996-05-29 Caption position information detecting apparatus KR0165763B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960018589A KR0165763B1 (en) 1996-05-29 1996-05-29 Caption position information detecting apparatus

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Application Number Priority Date Filing Date Title
KR1019960018589A KR0165763B1 (en) 1996-05-29 1996-05-29 Caption position information detecting apparatus

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KR970078607A true KR970078607A (en) 1997-12-12
KR0165763B1 KR0165763B1 (en) 1999-03-20

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