KR920013376A - VRT's Teletext Recording System - Google Patents

VRT's Teletext Recording System Download PDF

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Publication number
KR920013376A
KR920013376A KR1019900022464A KR900022464A KR920013376A KR 920013376 A KR920013376 A KR 920013376A KR 1019900022464 A KR1019900022464 A KR 1019900022464A KR 900022464 A KR900022464 A KR 900022464A KR 920013376 A KR920013376 A KR 920013376A
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KR
South Korea
Prior art keywords
teletext
signal
clock
data
switching
Prior art date
Application number
KR1019900022464A
Other languages
Korean (ko)
Other versions
KR0133512B1 (en
Inventor
박창수
Original Assignee
이헌조
주식회사 금성사
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Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019900022464A priority Critical patent/KR0133512B1/en
Publication of KR920013376A publication Critical patent/KR920013376A/en
Application granted granted Critical
Publication of KR0133512B1 publication Critical patent/KR0133512B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/06—Angle-modulation recording or reproducing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음No content

Description

브이씨알의 텔리텍스트 녹화시스템VRT's Teletext Recording System

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

제1도는 본 발명에 따른 브이씨알의 텔리텍스트 녹화시스템 구성도, 제2도는 제1도의 텔리텍스트 데이타 변환부, 제3도는 (가)내지 (자)는 제2도에 따른 각부 파형도.1 is a schematic diagram of a teletext recording system of VRC according to the present invention, FIG. 2 is a teletext data conversion unit of FIG. 1, and FIG. 3 is a waveform diagram of each part according to (a) to (2).

Claims (1)

복합영상신호(C-Video)로부터 텔리텍스트데이타(TXT)를 검출하는 텔리텍스트데이타검출부(5)와, 그 텔리덱스트데이타검출부(5)의 동기클럭을 검출하는 텔리텍스트클럭발생부(7)와, 그 텔리텍스트클럭(Tck)을 ½분주하는 분주기(8)와, 상기 텔리텍스트데이타(TXT)를 상기 텔리텍스트클럭(Tck)및 분주클럭(½Tck)에 따라 2치환한 후 이에따라 4치화데이타(Qa-Qd) 출력하는 텔리텍스트신호변환부(6)와, 그 텔리텍스트신호변환부(6)의 4치화데이타(Qa-Qd)에 따라 각기 레벨이 다른 아날로그신호로 출력하는 4치아날로그신호스위칭부(9)와, 상기 복합영상신호(C-Video)로부터 동기분리부(10)를 통해 분리한 동기신호(Hsync, Vsync)에 따라 수직귀선소 거시간신호(VBI)를 발생하는 수직귀선소거시간신호발생부(11)와, 상기 동기분리부(10)의 수평동기신호(Hsync)에 따라 그 수평동기신호(Hsync)및 상기 4치화아날로그신호위칭부(9)의 출력을 선택스위칭하는 수평동기절환 스위치(4)와, 그 수평동기절환스위치(4)의 출력 및 상기 복합영상신호(C-Video)를 상기 수직귀선소거시간신호 (VBI)에 따라 절환하여 브이씨알녹화부(2)에 출력시키는 텔리텍스트녹화절환스위치(1)로 구성하여 된 것을 특징으로 하는 브이씨알의 텔리텍스트 녹화시스템.A teletext data detector 5 for detecting teletext data TXT from a composite video signal C-Video, and a teletext clock generator 7 for detecting a synchronous clock of the teledext data detector 5; And a divider (8) for dividing the teletext clock (Tck) by ½, and replacing the teletext data (TXT) in accordance with the teletext clock (Tck) and the dividing clock (½Tck) and then quantizing them. Four-digital analog outputted with analog signals having different levels according to the teletext signal converter 6 for outputting the data Qa-Qd and the quantized data Qa-Qd of the teletext signal converter 6. A vertical generation signal VBI is generated in accordance with the signal switching unit 9 and the synchronization signals Hsync and Vsync separated from the composite video signal C-Video through the synchronization separation unit 10. The horizontal synchronization signal Hs according to the retrace time signal generator 11 and the horizontal synchronization signal Hsync of the synchronization separator 10. ync) and the horizontal synchronous switching switch 4 for selectively switching the output of the quantized analog signal switching unit 9, the output of the horizontal synchronous switching switch 4 and the composite video signal (C-Video). A teletext recording system comprising a teletext recording switching switch (1) for switching in accordance with a vertical blanking time signal (VBI) and outputting the same to a VRC recording unit (2). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900022464A 1990-12-29 1990-12-29 Teletext recording system for vtr KR0133512B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022464A KR0133512B1 (en) 1990-12-29 1990-12-29 Teletext recording system for vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900022464A KR0133512B1 (en) 1990-12-29 1990-12-29 Teletext recording system for vtr

Publications (2)

Publication Number Publication Date
KR920013376A true KR920013376A (en) 1992-07-28
KR0133512B1 KR0133512B1 (en) 1998-04-22

Family

ID=19308969

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900022464A KR0133512B1 (en) 1990-12-29 1990-12-29 Teletext recording system for vtr

Country Status (1)

Country Link
KR (1) KR0133512B1 (en)

Also Published As

Publication number Publication date
KR0133512B1 (en) 1998-04-22

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