KR950001187Y1 - Flicking remove apparatus of teletext character generator - Google Patents

Flicking remove apparatus of teletext character generator Download PDF

Info

Publication number
KR950001187Y1
KR950001187Y1 KR2019890001803U KR890001803U KR950001187Y1 KR 950001187 Y1 KR950001187 Y1 KR 950001187Y1 KR 2019890001803 U KR2019890001803 U KR 2019890001803U KR 890001803 U KR890001803 U KR 890001803U KR 950001187 Y1 KR950001187 Y1 KR 950001187Y1
Authority
KR
South Korea
Prior art keywords
unit
teletext
data
character generator
signal
Prior art date
Application number
KR2019890001803U
Other languages
Korean (ko)
Other versions
KR900016335U (en
Inventor
백경석
Original Assignee
주식회사 금성사
최근선
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 주식회사 금성사, 최근선 filed Critical 주식회사 금성사
Priority to KR2019890001803U priority Critical patent/KR950001187Y1/en
Publication of KR900016335U publication Critical patent/KR900016335U/en
Application granted granted Critical
Publication of KR950001187Y1 publication Critical patent/KR950001187Y1/en

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/14Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
    • G09G1/146Flicker reduction circuits
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
    • G09G5/24Generation of individual character patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Television Systems (AREA)

Abstract

내용 없음.No content.

Description

텔레텍스트 문자발생기의 깜박임 제거장치Flicker removal device of Teletext Character Generator

제1도는 종래 텔레텍스트 문자발생기의 블럭도.1 is a block diagram of a conventional teletext character generator.

제2도는 본 고안 텔레텍스트 문자발생기의 깜박임 제거장치의 블럭도.2 is a block diagram of a flicker removal apparatus of the inventive teletext character generator.

제3도의 (a) 내지 (f)는 제2도의 각부 파형도.(A)-(f) of FIG. 3 is a waveform diagram of each part of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1, 11 : 텔레텍스트데이타슬라이서 2 : 타이밍체인단1, 11: Teletext data slicer 2: Timing chain end

3, 15 : 인터페이스부 4, 16 : 데이타인식부3, 15: interface unit 4, 16: data recognition unit

5, 17 : 메모리인터페이스부 6, 18 : 문자발생부5, 17: memory interface unit 6, 18: character generator

7, 20 : 에스램 8, 19 : 문자발생처리부7, 20: SRAM 8, 19: Character generation processing unit

12 : 50Hz주파수조정부 13 : 100Hz주파수조정부12: 50Hz frequency adjusting part 13: 100Hz frequency adjusting part

14 : 시스템클럭부14: system clock part

본 고안은 텔레텍스트(Teletext)문자발생기에 관한 것으로, 특히 디스필레이시 펄드 주파수를 조정하여 디스플레이시 깜박임을 제거하도록 한 텔레텍스트 문자발생기으 lRkaqkr임 제거장치에 관한 것이다.The present invention relates to a teletext character generator, and more particularly, to an apparatus for removing a lRkaqkr as a teletext character generator for adjusting flicker frequency to remove flicker in display.

종래의 텔레텍스트 문자발생기는 제1도에 도시란 바와 같이, 아날로그 복합영상신호를 데이터로 분리하는 텔레택스트 데이터 슬라이서(Teletext Data Slicar)(1)로부터의 6MHz로되는 클럭입력신호가 타이밍체인(Timing Chain) 단(2)에 인가되어 1MHz로 분리된 후, 다시 샌드캐슬(Sand Casstle)출력, 텔레택스트 복합동기신호로 상기 텔레텍스트 데이터 슬라이서(1)에 인가되며, 상기 1MHz로 분리된 신호를 다시 64로 나누어 15.625KHz로 되는 수평동기신호로 만든후 데이터인식부(4)에 인가한다.In the conventional teletext character generator, as shown in FIG. 1, a clock input signal of 6 MHz from a teletext data slicer 1 that separates an analog composite video signal into data is used as a timing chain. Chain) is applied to the teletext data slicer 1 as a Sand Casstle output, and a teletext mixed synchronous signal, and then the signal separated at 1 MHz is again applied. After dividing by, make a horizontal synchronous signal of 15.625KHz and apply it to the data recognition unit 4.

이와동시에 텔레텍스트 데이터 슬라이서(1)로부터의 비데오 복합동기신호가 타이밍체인단(2)에 입력된후 데이터인식부(4)에 50HMz로 되는 수직동기신호를 인가한다.At the same time, the video composite synchronization signal from the teletext data slicer 1 is input to the timing chain stage 2, and then the vertical synchronization signal of 50 HMz is applied to the data recognition unit 4.

이때 데이터인식부(4)는 타이민체인단(2)으로부터의 수평 수직동기신호에 의해 텔레텍스트 데이터 슬라이서(1)의 데이터를 메모리인터페이스부(5)에 인가한후 에스램(SRAM)(7)에 저장하며, 이의 데이터가 인터페이스부(3)의 제어를 통해 문자발생부(6)에 인가된후 블랭킹신호, R.G.B색신호로 콘버젼시켜 TV출력단에 인가된다.At this time, the data recognition unit 4 applies the data of the teletext data slicer 1 to the memory interface unit 5 by the horizontal vertical synchronization signal from the thymine chain stage 2, and then uses the SRAM 7. The data is applied to the character generator 6 through the control of the interface unit 3, and then converted into a blanking signal and an RGB color signal and applied to the TV output terminal.

여기서 인터페이스부(3)는 직렬데이타 및 클럭신호에 의해 제어되어 문자발생처리부(8)의 각부를 제어한다.Here, the interface unit 3 is controlled by serial data and a clock signal to control each part of the character generation processor 8.

그런데 상기와 같은 종래의 텔레텍스트 문자발생기에 있어서는 텔레텍스트 모드에서 문자디스플레이시 수직주파수가 50Hz로되어 TV모드에서의 화면보다 깜박거림현상이 더욱 현저하게 나타나므로 문자로 이루어진 화면을 보는데 많은 피로함을 주게되는 결함이 있었다.However, in the conventional teletext character generator as described above, when the text display in the teletext mode, the vertical frequency is 50 Hz, flickering is more remarkable than the screen in the TV mode, which causes a lot of fatigue in viewing the character screen. There was a flaw.

본 고안은 이와같은 종래의 결함을 감안하여 텔테텍스트 모드의 문자디스플레이시 수직주파수를 100Hz로 조정함으로써 깜박거림을 제거하도록 한 텔테텍스트 문자발생기의 깜박거림 제거장치를 안출한 것으로 이를 첨부한 도면에 의해 상세히 설명하면 다음과 같다.The present invention has been made in view of the above-mentioned deficiency, and the flicker elimination device of the teltetext character generator, which eliminates flicker by adjusting the vertical frequency to 100 Hz in the teltetext mode text display, has been devised according to the accompanying drawings. It will be described in detail as follows.

제2도는 본 고안 텔테텍스트 문자발생기의 깜박임제거장치의 블럭도로서 이에 도시한 바와같이, 아날로그 복합영상신호를 처리하는 텔레텍스트 데이터 슬라이서(11)의 데이터가 테이타인식부(16)를 통해 메모리 인터페이스부(17)에 인가된후 에스램(20)에 저장됨과 아울러 인터페이스부(15)의 제어를 통해 문자발생부(18)에 인가되어 R.G.B출력을 TV시스템에 인가하여 구성한 텔레텍스트 문자발생기에 있어서, 50Hz로 되는 수평동기신호, 복합동기신호가 50Hz주파수조정부(12)를통해 처리되어 상기 텔테텍스트 데이터 슬라이서(11)에 블랭킹신호, PLL(Phase Locked Loop)동기신호를 인가함과 아울러 상기 데이터인식부(16)를 제어하고, 상기 복합동기신호가 100Hz주파수 조정부(13)를 통해 처리된후 상기 문자발생부(18)의 수직주파수를 제어하고, 상기텔레텍스트 데이터 슬라이서(11), 100Hz주파수조정부(13)의 클럭신호가 시스템클럭부(14)를 구동하여 상기 데이터인식부(16), 메모리인터페이스부(17)문자발생부(18), 100Hz주파수조정부(13)에 시스템클럭을 공급하게 문자 발생처리부(19)를 구성한다.FIG. 2 is a block diagram of the flicker elimination device of the inventive teltetext character generator. As shown in FIG. 2, data of a teletext data slicer 11 for processing an analog composite video signal is transmitted through a memory recognition unit 16. In the teletext character generator, which is applied to the unit 17 and stored in the SRAM 20 and applied to the character generator 18 through the control of the interface unit 15, the RGB output is applied to the TV system. , A horizontal synchronization signal of 50 Hz, and a composite synchronization signal are processed through the 50 Hz frequency adjusting unit 12 to apply a blanking signal and a phase locked loop (PLL) synchronization signal to the teltext data slicer 11 and to recognize the data. Control unit 16, control the vertical frequency of the character generator 18 after the composite synchronization signal is processed through the 100Hz frequency adjusting unit 13, and the teletext data slot The clock signal of this processor 11 and the 100 Hz frequency adjusting unit 13 drives the system clock unit 14 so that the data recognition unit 16, the memory interface unit 17, the character generating unit 18, and the 100 Hz frequency adjusting unit 13 The character generation processor 19 is configured to supply a system clock to the "

제3도의 (a) 내지 (f)는 제2도의 각부파형도로서 이에 도시한 바와같이, (a)는 아날로그 복합영상신호, (b)는 50Hz의 수평동기신호, (c)는 복합동기신호, (d)는 R.G.B출력 및 블랭킹출력신호, (e)는 텔레텍스트의 클럭신호, (f)는 텔레택스트 데이터를 나타낸 것이다.(A) to (f) of FIG. 3 are angular waveform diagrams of FIG. 2, as shown in (a) of an analog composite video signal, (b) of a horizontal synchronization signal of 50 Hz, and (c) of a composite synchronization signal. (d) shows RGB output and blanking output signals, (e) shows clock signals of teletext, and (f) shows teletext data.

이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.

제3도 (b)(c)에 도시한 바와같은 50Hz의 수평동기신호와 복합동기신호가 50Hz주파수조정부(12)에 인가되어 주파수처리된후 텔레텍스트 데이터슬라이서(11)에 블랭킹 및 PLL동기신호를 인가함에 따라 제3도(a)에 도시한 바와 같은 아날로그 복합영상신호가 제3도(e)에 도시한 바와같은 클럭신호에 의해 제3도(f)에 도시한바와같은 텔레택스트 데이터로 추출되어 데이터인식부(16)로 인가되며, 이때 텔레텍스트 데이터 슬라이서(11)에 인가된 PLL동기신호가 시스템 클럭부(14)에 인가된다.A horizontal synchronization signal of 50 Hz and a composite synchronization signal as shown in Fig. 3 (b) and (c) are applied to the 50 Hz frequency adjusting section 12 to be frequency-processed and then blanked and PLL synchronized to the teletext data slicer 11. As a result, the analog composite video signal as shown in FIG. 3 (a) is converted into teletext data as shown in FIG. 3 (f) by the clock signal as shown in FIG. The PLL synchronization signal applied to the teletext data slicer 11 is applied to the system clock unit 14.

이와 동시에 제3도(c)에 도시한 바와같은 복합동기신호가 100Hz주파수조정부(13)를 통해 조정된후 시스템클럭부(14)에 인가됨에 따라 시스템 클럭이 발생되며, 이의 신호가 데이터인식부(16), 메모리인터페이스부(17), 문자발생부(18), 인터페이스부(15), 100Hz주파수 조정부(13)에 공급된다.At the same time, a system clock is generated as the composite synchronous signal as shown in FIG. 3 (c) is adjusted through the 100Hz frequency adjusting unit 13 and then applied to the system clock unit 14, and the signal thereof is a data recognition unit. 16, the memory interface unit 17, the character generator 18, the interface unit 15, and the 100 Hz frequency adjusting unit 13 are supplied.

이와 같이하여 제3도(f)에 도시한 바와같은 텔레텍스트 데이터를 인가받은 데이터인식부(16)에는 시스템클럭에 의한 15.625KHz로 되는 수평동기, 500Hz로 되는 수직동기신호에 의해 텔레텍스트데이타의 동기를 맞추어 필요한 데이터를 선택하며, 이의 데이터가 메모리 인터페이스부(17)를 통해 에스램(20)에 저장된다.In this manner, the data recognition unit 16 receiving the teletext data as shown in FIG. 3 (f) has a horizontal synchronization of 15.625 KHz by the system clock and a vertical synchronization signal of 500 Hz. The required data are selected in synchronization, and the data thereof is stored in the SRAM 20 through the memory interface unit 17.

이후 에스램(20)에 저장된 데이터가 시스템클럭에 의해 메모리 인터페이스부(17)에 인가된후 문자발생부(18)에 인가되며, 이의 출력이 R.G.B색신호로 콘버전되어 TV출력단에 인가되고, 또한 블랭킹신호도 같이 출력된다.After that, the data stored in the SRAM 20 is applied to the memory interface unit 17 by the system clock and then to the character generator 18, and its output is converted into an RGB color signal and applied to the TV output terminal. The blanking signal is also output.

이때 디스플레이되는 문자발생부(18)의 출력데이타가 제3도(c)에 도시한 바와같은 복합동기신호를 처리하는 100Hz주파수조정부(13)의 출력에 의해 제어되어 제3도(라)에 도시한 바와같이, 100Hz로되는 수직주파수의 R.G.B색신호로 TV출력단에 인가됨으로써 디스플레이시 문자데이타의 깜박거리밍 제거되는 것이다.At this time, the output data of the character generator 18 to be displayed is controlled by the output of the 100 Hz frequency adjusting unit 13 which processes the composite synchronous signal as shown in FIG. As described above, by applying the RGB color signal of the vertical frequency of 100Hz to the TV output terminal, the flicker of the text data is removed during display.

이상에서 상세히 설명한 바와같이 본 고안은 텔레텍스트 모드에서 문자디스플레이시 100Hz로 되는 수직주파수로 되는 시스템에 인터페이스되어 깜박거림현간이 제거되므로 화면의 시각이 편하게 될 수 있는 효과가 있다.As described in detail above, the present invention is interfaced to a system having a vertical frequency of 100 Hz when the text display is displayed in the teletext mode, thereby eliminating flickering.

Claims (1)

텔레텍스트 데이터슬라이서(11)의 출력데이타가 데이터인식부(16)를 통해 메모리인터페이스부(17)에 인가된후 에스램(20)에 저장됨과 아울러 문자발생부(18)를 통해 R.G.B색신호로 출력되게 구성한 텔레텍스트의 문자발생기에 있어서, 수평동기신호, 복합동기신호가 50Hz주파수조정부(12)를 통해 상기 텔레텍스트 데이터슬라이서(11), 데이터인식부(16)를 제어하고, 상기 복합동기신호가 100Hz주파수조정부(13)를 통해 처리된후 상기 텔레텍스트 데이터슬라이서(11)의 클럭신호와 함께 시스템클럭부(14)를 구동하여 각단에 시스템클럭을 공급하고, 상기 100Hz주파수조정부(13)의 출력이 상기 문자발생부(18)의 수직주파수를 제어하게 문자발생처리부(19)를 구성하여 된 것을 특징으로 하는 텔레텍스트 문자발생기의 깜박임 제거장치.The output data of the teletext data slicer 11 is applied to the memory interface unit 17 through the data recognition unit 16 and then stored in the SRAM 20 and output as an RGB color signal through the character generator 18. In the teletext character generator, a horizontal synchronous signal and a composite synchronous signal control the teletext data slicer 11 and the data recognition unit 16 through a 50 Hz frequency adjusting unit 12, and the composite synchronous signal is After processing through the 100Hz frequency adjusting unit 13, the system clock unit 14 is driven together with the clock signal of the teletext data slicer 11 to supply system clocks to each stage, and the output of the 100Hz frequency adjusting unit 13 is output. And a character generation processing unit (19) configured to control the vertical frequency of the character generation unit (18).
KR2019890001803U 1989-02-21 1989-02-21 Flicking remove apparatus of teletext character generator KR950001187Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890001803U KR950001187Y1 (en) 1989-02-21 1989-02-21 Flicking remove apparatus of teletext character generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890001803U KR950001187Y1 (en) 1989-02-21 1989-02-21 Flicking remove apparatus of teletext character generator

Publications (2)

Publication Number Publication Date
KR900016335U KR900016335U (en) 1990-09-03
KR950001187Y1 true KR950001187Y1 (en) 1995-02-24

Family

ID=19283852

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890001803U KR950001187Y1 (en) 1989-02-21 1989-02-21 Flicking remove apparatus of teletext character generator

Country Status (1)

Country Link
KR (1) KR950001187Y1 (en)

Also Published As

Publication number Publication date
KR900016335U (en) 1990-09-03

Similar Documents

Publication Publication Date Title
US4616261A (en) Method and apparatus for generating subliminal visual messages
KR100312710B1 (en) Clock pulse generator for digital imaging system
JP2000122624A (en) Automatic clock phase adjusting device and automatic clock phase adjusting method and display unit using it
KR960032278A (en) Method for generating timing signal for display device and display panel
KR900019501A (en) Teletext receiver
KR950001187Y1 (en) Flicking remove apparatus of teletext character generator
US4398215A (en) Video signal processing system
ES8707834A1 (en) Television receiver having character generator with non-line locked clock oscillator
JP2001331141A (en) Video display system, video signal output device, and device and method for displaying video
JPH05207327A (en) Horizontal synchronizing circuit
JP3360332B2 (en) Video signal processing device
KR930010368B1 (en) Sync-singnal processing apparatus including test-signal circuit
KR100220856B1 (en) Driving method of liquid crystal display device
KR960008753B1 (en) On screen display circuit
US4390899A (en) Television signal processing system
KR0154834B1 (en) Saturation control apparatus of color signal enabling gain control
KR100490933B1 (en) Display system and process for supplying a display system with a picture signal
KR100226842B1 (en) Video signals processing device and method thereof
EP0794664A3 (en) Video camera with recorder-reproducer and control thereof
KR970057734A (en) Character display device
JPH0153545B2 (en)
KR100287158B1 (en) Apparatus for generating the composite synchronizing signal
KR900000588B1 (en) Pattern generator which used teletext
KR920004990Y1 (en) Color-automatic conversion circuit for on screen display character
JPS5617583A (en) Television picture receiver

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20001227

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee