KR960030672A - Multi-screen quaternary display device of TV receiver - Google Patents

Multi-screen quaternary display device of TV receiver Download PDF

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Publication number
KR960030672A
KR960030672A KR1019950046022A KR19950046022A KR960030672A KR 960030672 A KR960030672 A KR 960030672A KR 1019950046022 A KR1019950046022 A KR 1019950046022A KR 19950046022 A KR19950046022 A KR 19950046022A KR 960030672 A KR960030672 A KR 960030672A
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KR
South Korea
Prior art keywords
screen
sub
tuning
data
output
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KR1019950046022A
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Korean (ko)
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KR0162435B1 (en
Inventor
이준영
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구자홍
Lg 전자주식회사
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Priority to KR1019950046022A priority Critical patent/KR0162435B1/en
Priority to JP00408196A priority patent/JP3291190B2/en
Publication of KR960030672A publication Critical patent/KR960030672A/en
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Publication of KR0162435B1 publication Critical patent/KR0162435B1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66Digital/analogue converters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455Demodulation-circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50Tuning indicators; Automatic tuning control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52Automatic gain control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00Applications
    • H01H2231/036Radio; TV

Abstract

본 발명은 다화면 픽쳐인픽쳐/픽쳐아울픽쳐 화면을 디스플레이하는 기술에 관한 것으로, 제한된 갯수의 튜너를 이용하여 다수의 준동화 부화면을 제공하고자 하는 경우 필수적으로 두가지의 기술이 요구되는데, 그 중에서 하나는 고속으로부화면용 튜너를 제어하는 기술이고, 다른 하나는 피아이피화면용으로 선택된 다수의 영상신호원을 고속으로 처리하는 기술이다. 따라서, 본 발명에서는 튜닝가속기(506) 및 튜닝메모리(503)를 이용하여 고속튜닝을 구현하고, 피아이피 발생부를 이용하여 고속튜닝되어 얻어진 부화면용 영상데이타를 보다 빠른 속도로 처리하여 거의 동화에 가까운 다수의 부화면을 제공할 수 있도록 하였다.The present invention relates to a technology for displaying a multi-screen picture-in-picture / picture-out picture screen. In the case of providing a plurality of quasi-synchronous sub-screens using a limited number of tuners, two technologies are required. One is a technique of controlling a sub-screen tuner at high speed, and the other is a technique of processing a plurality of video signal sources selected for IP screen at high speed. Therefore, in the present invention, high-speed tuning is realized using the tuning accelerator 506 and the tuning memory 503, and the sub-screen image data obtained by the high-speed tuning using the IP generation unit can be processed at a higher speed to provide near moving images. It is possible to provide a large number of sub-screens near.

Description

텔레비젼 수상기의 다화면 준동화 디스플레이 장치Multi-screen quaternary display device of TV receiver

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

제5도는 본 발명 텔레비젼 수상기의 다화면 준동화 디스플레이 장치에 대한 블록도, 제9도는 본 발명 다화면 준동화 디스플레이를 위한 동작 신호 흐름도, 제14도는 본 발명에 의한 부화면 영상데이타의 읽기/디스플레이 제어 흐름도, 제15도는 튜닝가속기의 AGC 동작 신호 흐름도.5 is a block diagram of a multi-screen quaternary display device of a television receiver according to the present invention, FIG. 9 is a flowchart of an operation signal for the multi-screen quaternary display of the present invention, and FIG. 14 is a reading / display of sub-screen image data according to the present invention. Fig. 15 is a flow chart of the AGC operation signal of the tuning accelerator.

Claims (9)

부화면 신호원을 신속하게 튜닝할 수 있도록 하기 위하여 복수채널의 튜닝주파수 데이타 및 에지씨 데이타를 저장하고 있다가 원하는 시점에서 출력하는 제어부(500A)와, 상기 제어부(500A)의 제어를 받아 부화면용 영상신호원을 튜닝하여 기저대역의 복합영상신호로 출력함에 있어서, 상기 복수채널의 튜닝주파수 데이타 및 에지씨 데이타를 이용하여 고속튜닝을 실시하는 부화면용 튜닝부(500B)와, 영상스위치 및 수평/수직펄스발생부(500D)를 통해 상기 부화면 튜닝부(500C)에서 현재 튜닝된 채널의 영상데이타를 버퍼메모리에 일시 저장하여 영상처리 및 디스플레이부(500F)측으로 출력한 후 주메모리를 통해 그 영상처리 및 디스플레이부(500F)측으로 출력하는 피아피 발생부(500E)를 포함하여 구성한 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.In order to quickly tune the sub-screen signal source, the control unit 500A stores the tuning frequency data and the edge seed data of a plurality of channels and outputs them at a desired time point, and the sub-screen under the control of the control unit 500A. And a sub-screen tuning unit 500B for performing high-speed tuning using the tuning frequency data and the edge seed data of the plurality of channels in tuning the video signal source for output to the baseband composite video signal. The video data of the channel currently tuned by the sub-screen tuning unit 500C through the horizontal / vertical pulse generating unit 500D is temporarily stored in the buffer memory and output to the image processing and display unit 500F, and then through the main memory. A multi-screen quasi-motion picture of a television receiver, comprising a video generating and outputting part (500E) for output to the display part (500F). Play devices. 제1항에 있어서, 제어부(500A)는 텔레비젼수상기의 구동 초기화 단계에서 복수개의 튜닝주파수 데이타 및 에지씨 데이타를 채널별로 저장하는 튜닝 메모리(503)와, 외부의 제어명령에 따라 부화면모드가 설정될때 상기 튜닝 메모리(503)에 저장된 튜닝주파수 데이타 및 에지씨 데이타를 읽어내는 마이크로컴퓨터(502)로 구성한 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.2. The control apparatus 500A of claim 1, wherein the control unit 500A sets a tuning memory 503 for storing a plurality of tuning frequency data and edge seam data for each channel in a driving initialization step of a television receiver, and sets the sub picture mode according to an external control command. And a microcomputer (502) for reading out the tuning frequency data and the edge seed data stored in the tuning memory (503). 제1항에 있어서, 부화면용 튜닝부(500B)는 제어부(500A)의 제어를 받아 부화면용 고주파영상신호원을 튜닝하는 부화면용 튜너(504)와, 상기 부화면용 튜너(504)에서 출력되는 중간주파수를 공급받아 기저대역의 복합영상신호를 복조해내는 부화면용 중간주파검파기(505)와, 상기 부화면용 중간주파검파기(505)에서 출력되는 각 채널의 부화면용 자동이득제어전압(AGC)을 저장하고 있다가 튜닝지점에서 제어부(500A)로부터 리드제어신호가 입력되는 즉시 부화면용 튜너(504)측으로 공급하는 튜닝가속기(506)로 구성한 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.The sub-screen tuning unit 500B according to claim 1, wherein the sub-screen tuning unit 500B controls the sub-screen tuner 504 for tuning the high-frequency image signal source for sub-screens under the control of the control unit 500A, and the sub-screen tuner 504. The sub picture intermediate frequency detector 505 for demodulating the baseband composite video signal and the sub picture automatic gain for each channel output from the sub picture intermediate frequency detector 505. And a tuning accelerator 506 which stores the control voltage ACC and supplies it to the sub-screen tuner 504 immediately after the read control signal is input from the control unit 500A at the tuning point. Screen semi-synchronized display device. 제3항에 있어서, 튜닝가속기(506)는 하나의 방송채널데이타를 저장시키는 동안 마이크로컴퓨터(502)의 제어를 받아 에이지씨 데이타를 저장하고, 해당 채널 튜닝시 그 마이크로컴퓨터(502)의 제어를 받아 에이지씨 데이타를 출력하는 메모리(506A)와, 상기 마이크로컴퓨터(502)의 제어를 받아 부화면용 중간주파검파기(505)에서 출력되는 기저대역의 복합영상신호를 선택하거나 상기 메모리(506A)에서 출력되는 에이지씨 데이타를 선택하여 부화면용 튜너(504)에 공급하는 AGC스위치(506B)로 구성한 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.4. The tuning accelerator 506 stores the age data under the control of the microcomputer 502 while storing one broadcast channel data, and controls the microcomputer 502 during the channel tuning. And a baseband composite video signal output from the sub-screen intermediate frequency detector 505 under the control of the microcomputer 502 or from the memory 506A. A multi-screen quaternary display device of a television receiver comprising an AGC switch (506B) for selecting output age data to be supplied to a sub-screen tuner (504). 제3항에 있어서, 튜닝가속기(506)는 부화면용 중간주파 검파기(505)측으로부터 귀환되는 에이지씨값을 기준으로 하여 D/A변환기(604)에서 부화면용 튜너(504)측으로 공급되는 에이지씨값을 비교하는 동작을 무한 순환과정으로 반복수행하여 에이지씨 데이타를 원하는 값으로 설정하는 비교기(602)와, 초기화 단계에서는 상기 비교기(602)에서 출력되는 에이지씨 데이타를 선택하여 D/A변환기(604)측으로 출력함과 아울러 튜닝메모리(503)측으로 전달하고, 가속모드에서는 그 저장된 에이지씨 데이타를 선택하여 출력하는 제어기(603)와, 상기 제어기(603)에서 출력되는 에이지씨 데이타를 아날로그신호로 변환하여 부화면용 튜너(504)에 공급하는 D/A변환기(604)로 구성한 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.4. The tuning accelerator 506 is supplied from the D / A converter 604 to the sub-screen tuner 504 on the basis of the age value returned from the sub-screen intermediate frequency detector 505. Comparing the age value is repeated in an endless cycle, the comparator 602 to set the age data to the desired value, and in the initialization step to select the age data output from the comparator 602 D / A The controller 603 outputs the transducer 604 to the tuning memory 503 and selects and outputs the stored age data in the acceleration mode, and the analog data output from the controller 603 is analogized. A multi-screen quaternary display device for a television receiver comprising a D / A converter (604) for converting a signal into a sub-screen tuner (504). 제1항에 있어서, 피아이피 발생부(500E)는 순환형식으로 연속해서 입력되는 복수개의 부화면영상신호를 피아이피 처리하기 위하여 수평동기신호나 수직동기신호를 기준으로 각종 제어신호를 출력하는 다화면 동화 발생 제어기(701)와, 수평/수직방향으로 축소되어 순차적으로 입력되는 부화면용 영상데이타를 영상 버퍼메모리(703A)에 저장하는 쓰기 처리기(702)와, 상기 제어기(701)의 제어를 받아 현재 튜닝된 채널의 부화면용 영상데이타를 입력선택기(704)측으로 출력한 후 주메모리(703B)의 해당 영역에 저장하는 영상 버퍼메모리(703A)와, 기 설정된 갯수의 부화면 영상데이타를 저장하고, 그 영상데이타를 상기 영상 버퍼메모리(703A)에서 출력되는 현재 튜닝된 채널의 영상데이타로 재저장하는 주메모리(703B)와, 상기 제어기(701)의 제어를 받아 영상 버퍼메모리(703A)에서 출력되는 영상데이타와 주메모리(703B)에서출력되는 영상데이타를 선택적으로 받아들여 2차원 디스플레이소자(514)측으로 전달하는 입력선택기(704)로 구성한 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.2. The PIP generator 500E outputs various control signals based on a horizontal synchronous signal or a vertical synchronous signal to process a plurality of sub-screen image signals continuously input in a cyclic format. And a write processor 702 for storing, in the image buffer memory 703A, sub-picture image data which are sequentially reduced in the horizontal / vertical direction and inputted in the image buffer memory controller 701, and controls the controller 701. A video buffer memory 703A which stores the sub-picture image data of the currently tuned channel to the input selector 704, and stores the sub-screen image data in the corresponding area of the main memory 703B, and a preset number of sub-screen image data. And a main memory 703B for restoring the video data as video data of the currently tuned channel output from the video buffer memory 703A, and under the control of the controller 701. Of the television receiver characterized in that it comprises an input selector 704 which selectively receives the image data output from the memory 703A and the image data output from the main memory 703B and transfers them to the two-dimensional display element 514. Screen semi-synchronized display device. 제6항에 있어서, 영상 버퍼메모리(703A)의 영상데이타가 입력선택기(704)측으로 모두 전송되었음을 알리기 위하여 플래그를 사용하는 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.7. The multi-screen quaternary display device according to claim 6, wherein a flag is used to indicate that all of the image data of the image buffer memory (703A) has been transmitted to the input selector (704) side. 제6항에 있어서, 영상 버퍼메모리(703A)는 영상데이타를 필드단위로 저장하는 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.7. The multi-screen quaternary display device according to claim 6, wherein the image buffer memory (703A) stores image data in field units. 제6항에 있어서, 영상 버퍼메모리(703A)는 영상데이타를 프레임단위로 저장하는 것을 특징으로 하는 텔레비젼 수상기의 다화면 준동화 디스플레이 장치.7. The multi-screen quaternary display device according to claim 6, wherein the image buffer memory (703A) stores image data in units of frames. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950046022A 1995-01-16 1995-12-01 Apparatus for displaying semi-dynamic picture image multi-screen of a television receiver KR0162435B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019950046022A KR0162435B1 (en) 1995-01-16 1995-12-01 Apparatus for displaying semi-dynamic picture image multi-screen of a television receiver
JP00408196A JP3291190B2 (en) 1995-01-16 1996-01-12 A plurality of multi-screen quasi-moving image display devices for a TV receiver

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR95-636 1995-01-16
KR19950000636 1995-01-16
KR1019950046022A KR0162435B1 (en) 1995-01-16 1995-12-01 Apparatus for displaying semi-dynamic picture image multi-screen of a television receiver

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KR960030672A true KR960030672A (en) 1996-08-17
KR0162435B1 KR0162435B1 (en) 1998-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100429805B1 (en) * 2002-01-03 2004-05-03 삼성전자주식회사 Display method and apparatus therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100847147B1 (en) * 2007-04-18 2008-07-18 한국전자통신연구원 Apparatus and method for controlling video conference

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100429805B1 (en) * 2002-01-03 2004-05-03 삼성전자주식회사 Display method and apparatus therefor

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