KR970078608A

KR970078608A - Information insertion device to inform the location of subtitles

Info

Publication number: KR970078608A
Application number: KR1019960018599A
Authority: KR
Inventors: 조민수
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1996-05-29
Filing date: 1996-05-29
Publication date: 1997-12-12

Abstract

본 발명은 자막위치를 알리는 정보삽입장치에 관한 것으로, 종래에는 화면에 디스플레이되는 자막위치를 알 수 없어 화면의 배율을 정확하게 조정하지 못하는 결점이 있었다. 본 발명은 방송국 혹은 외부에서 텔레비전 수상기에 송출하고자 하는 영상신호에 자막위치를 알리는 정보를 삽입하여 송출하므로 텔레비젼 수상기에서 이를 검출하여 화면의 배율 조정하기 위한 정보로 이용할 수 있도록 된 자막위치를 알리는 정보삽입장치를 제공한다.The present invention relates to an information insertion apparatus for notifying a caption position. In the related art, a caption position displayed on a screen cannot be known, and thus, there is a drawback in that the magnification of the screen cannot be accurately adjusted. The present invention inserts and sends information indicating a caption position to a video signal to be transmitted to a television receiver from a broadcasting station or an external device. Provide the device.

Description

Information insertion device to inform the location of subtitles

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 타이밍도, 제3도는 본 발명에 따른 화면을 도시한 예시도.1 is a circuit diagram according to an embodiment of the present invention, FIG. 2 is a timing diagram according to an embodiment of the present invention, and FIG. 3 is an exemplary view showing a screen according to the present invention.

Claims

The clamp circuit adjusts the level of the video signal by the clamp voltage Va, and separates the horizontal synchronizing signal H.sync and the vertical synchronizing signal V.sync included in the video signal and clamps the clamp pulse. A vertical / horizontal sync signal separator to generate a clock, and compare the phase of the horizontal sync signal H.sync of the vertical / horizontal sync signal separator to the reference horizontal sync signal H.ref of the 1 / N divider A PLL for controlling the oscillation frequency of the oscillator, a clock oscillator for oscillating the clock pulse CLK under the control of the PLL, and a clock pulse CLK of the clock oscillator for the 1 / N reference horizontal synchronization signal (H.sync). In a device for transmitting a video signal including a 1 / N frequency divider, a vertical synchronization signal (V.sync) supplied from a vertical / horizontal synchronization signal separator is input when information for setting a start position and an end position of a subtitle is input. Reference number fed from the 1 / N divider from the rising edge of A counter A for outputting a pulse Sa of "high" level at the start line and the end line for inserting subtitle information while counting the smooth synchronizing signal H.ref; A counter B for generating a "high" level switching signal Sb at a selected horizontal line front porch by counting a clock pulse CLK supplied from the clock oscillator from the rising edge of the pulse Sa output from the counter A; And a switching IC for synthesizing the subtitle position information insertion voltage Vb with the video signal output from the clamp circuit by the switching signal Sb supplied from the counter B and outputting it to the rear stage. Information insertion device for indicating the position of the subtitle.

The information insertion apparatus as claimed in claim 1, wherein the counter A is configured to output pulses of "high" level for 1H in the start horizontal line and the end horizontal line for inserting the subtitle positions.

※ Note: The disclosure is based on the initial application.