KR920005199B1 - High definition television having two electronic guns - Google Patents

High definition television having two electronic guns Download PDF

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Publication number
KR920005199B1
KR920005199B1 KR1019890002702A KR890002702A KR920005199B1 KR 920005199 B1 KR920005199 B1 KR 920005199B1 KR 1019890002702 A KR1019890002702 A KR 1019890002702A KR 890002702 A KR890002702 A KR 890002702A KR 920005199 B1 KR920005199 B1 KR 920005199B1
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South Korea
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video signal
circuit
delayed
delaying
signal
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KR1019890002702A
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Korean (ko)
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KR900015519A (en
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최길호
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삼성전자 주식회사
강진구
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control 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
    • G09G1/20—Control 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 multi-beam tubes

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Television Scanning (AREA)

Abstract

The scanning line is delayed by one horizontal period and the delayed scanning line is scanned between scanning lines by an additional electron gun. The high definition television includes an 1-H delaying circuit (10) for delaying the video signal amplified by a video signal amplifier, a 1/2 H delaying circuit (15) for delaying the signal transmitted from a synchronous filter (11) by 1/2 H, a horizontal and a vertical amplifier (17,18) for amplifying the 1/2 H delayed video signal to provide to a deflection coil (16), and two electron guns (7,8) for scanning the video signal amplified by the video signal amplifier (8) and the video signal delayed by the 1 H delaying circuit (10).

Description

2개의 전자총을 이용한 고화질 텔레비젼High definition television with two guns

제1도는 본 발명에 따른 2개의 전자총을 이용한 고화질 텔레비젼의 블록 다이어그램.1 is a block diagram of a high-definition television using two electron guns according to the present invention.

제2도는 현재 사용되고 있는 비월주사의 예.2 is an example of interlaced injection currently in use.

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

5 : 스피이커 6 : 브라운관5: speaker 6: CRT

7,9 : 전자총 12,16 : 수직 및 수평 편향코일7,9: electron gun 12,16: vertical and horizontal deflection coils

본 발명은 2개의 전자총을 이용한 고화질 텔레비젼에 관한 것이다.The present invention relates to a high definition television using two electron guns.

현재 사용되고 있는 전자편향형 텔레비젼은 한 필드(field)를 기억시키고, 기억된 주사선을 다른 주사선 사이에 끼워넣는 비월주사방식 즉, 제2도에 도시한 바와 같이 A점에서 시작하여 262,5개의 주사선을 구성하고 다시 B점에서 시작하여 262,5개의 주사선을 구성하여 한개의 화면을 이루는 방식을 사용하고 있으나, 이러한 비월주사방식 텔레비젼을 해상도가 떨어지는 결점이 있었다.Currently used electronically deflected televisions have an interlaced scanning method in which one field is stored and the memorized scan line is sandwiched between other scan lines, that is, 262,5 scan lines starting at point A as shown in FIG. However, starting from point B, 262,5 scan lines are used to form a single screen, but this interlaced type television has a disadvantage of poor resolution.

따라서 본 발명은 이러한 사정을 감안하여 2개의 전자총을 이용하여 한 주사선을 1수평 기간동안 지연시켜 지연된 주사선을 다른 주사선 사이에 끼워넣어 선명도가 훨씬 높은 텔레비젼를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and an object thereof is to provide a television with much higher definition by delaying one scanning line for one horizontal period by using two electron guns and sandwiching the delayed scanning line between the other scanning lines.

이러한 목적을 달성하기 위한 본 발명은 영상 증폭된 신호를 1수평 동기시간동안 지연시키기 위한 1H 지연회로와, 동기검파된 신호를 1/2수평 동기시간동안 지연시키기 위한 1/2H 지연회로와, 1/2H 시간지연된 신호를 수직 및 수평발진 증폭하여 편형코일에 제공하기 위한 수직 및 수평 발진 증폭회로 및 원영상신호와 1H 지연된 영상신호를 재생시키기 위한 2개의 전자총으로 구성됨을 특징으로 한다.The present invention for achieving this object is a 1H delay circuit for delaying the image-amplified signal for one horizontal synchronizing time, a 1 / 2H delay circuit for delaying the synchronously detected signal for 1/2 horizontal synchronizing time, and 1 Vertical and horizontal oscillation amplification circuits for vertically and horizontally oscillating amplified / 2H time-delayed signals to provide to the coil, and two electron guns for reproducing the original video signal and the 1H delayed video signal.

이하 본 발명은 정부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the drawings.

제1도는 본 발명에 따른 2개의 전자총을 이용한 고화질 텔레비젼의 블록 다이어그램을 도시한 것이다. 이에 도시한 바와같이, 튜너(1)에서 동조된 복합음성 및 영상신호는 음성검파 회로(1)와 형상검파 회로(3)에 의해 음성신호와 영상신호를 분리검파된다. 음성검파회로(2)에 연결된 음성증폭회로(4)는 검파된 음성신호를 증폭하여 스피이커(5)를 통해 외부로 출력토록 한다.1 shows a block diagram of a high definition television using two electron guns according to the present invention. As shown in the figure, the composite voice and video signals tuned by the tuner 1 are separated and detected by the voice detection circuit 1 and the shape detection circuit 3 separately. The voice amplifier circuit 4 connected to the voice detector circuit 2 amplifies the detected voice signal and outputs it to the outside through the speaker 5.

한편, 영상검파회로(3)의 출력단에는 검파된 영상신호를 증폭하여 증폭된 영상신호를 브라운관(6)을 구성하는 제1전자총(7)에 제공하기 위한 영상 증폭회로(8)가 연결된다. 또한 영상증폭회로(8)의 출력단에는 증폭된 영상신호를 1수평 동기시간동안 지연시켜 지연된 영상 신호를 제1전자총(9)에 입력시키기 위한 1H 지연회로(10)가 연결된다.On the other hand, the output terminal of the image detection circuit 3 is connected to an image amplifying circuit 8 for amplifying the detected video signal and providing the amplified video signal to the first electron gun 7 constituting the CRT 6. Also connected to the output terminal of the image amplifier circuit 8 is a 1H delay circuit 10 for delaying the amplified video signal for one horizontal synchronizing time and inputting the delayed video signal to the first electron gun 9.

그리고, 영상증폭회로(8)의 다른 출력단에는 증폭된 영상신호에서 동기신호를 축출하기 위한 동기검파회로(11)가 연결된다. 동기검파회로(11)에는 검파된 동기신호를 수직 및 수평발진 증폭하여 제1전자총의 수직 및 수평 편향 수평발진 증폭회로(14)가 연결된다. 또한, 동기검파 회로(11)에는 검파된 동기신호를 1/2 수평 동기시간동안 지연시키기 위한 1/2H 지연회로(15)가 연결되고, 1/2H 지연회로(15)에는 1/2H 지연된 신호를 수직 및 수평발진 증폭하여 제2전자총의 수직 및 수평 편향코일(16)에 제공하기 위한 수직발진증폭회로(17)와 수평발진 증폭회로(18)가 연결된다. 도면중 미설명 부호(19)는 안테나를 표시한다.The other output terminal of the image amplifying circuit 8 is connected with a synchronous detection circuit 11 for extracting a synchronous signal from the amplified video signal. The synchronous detection circuit 11 is connected to the vertical and horizontal deflection horizontal oscillation amplification circuit 14 of the first electron gun by vertically and horizontally oscillating amplifying the detected synchronous signal. In addition, the 1 / 2H delay circuit 15 is connected to the synchronous detection circuit 11 for delaying the detected synchronous signal during the 1/2 horizontal synchronizing time, and the 1 / 2H delay circuit 15 has the 1 / 2H delayed signal. The vertical oscillation amplification circuit 17 and the horizontal oscillation amplification circuit 18 are connected to provide the vertical and horizontal oscillation amplification to the vertical and horizontal deflection coils 16 of the second electron gun. In the figure, reference numeral 19 denotes an antenna.

이와같이 구성된 본 발명의 동작을 설명하기로 한다.The operation of the present invention configured as described above will be described.

우선 텔레비젼의 전원스위치(도시하지 않았음)를 온시키면, 방송국에서 송출된 무선복합(영상+음성)신호는 안테나(19)를 통해 튜너(1)에 의해 동조되는바, 우선 음성신호는 음성검파 회로(2)에 의해 검파되어 음성증폭회로(4)에 의해 소정의 레벨만큼 종폭된뒤 스피이커(5)를 통해 외부로 출력된다.First, when the power switch (not shown) of the television is turned on, the radio composite (video + audio) signal transmitted from the broadcasting station is tuned by the tuner 1 through the antenna 19. At first, the audio signal is detected by voice. It is detected by the circuit 2, longitudinally widened by the voice amplifier circuit 4 by a predetermined level, and then output to the outside through the speaker 5.

한편, 영상신호는 영상검파회로(3)에 의해 검파된뒤 음성증폭회로(8)에서 증폭된다. 이때 영상증폭회로(8)는 증폭된 영상신호를 제1전자총(7)으로 인가함과, 동시에 1H 지연회로(10)를 통해 1H 지연시켜 제2전자총(9)에 제공한다.On the other hand, the video signal is detected by the video detector circuit 3 and then amplified by the audio amplifier circuit 8. At this time, the image amplifier circuit 8 applies the amplified image signal to the first electron gun 7 and at the same time delays 1H through the 1H delay circuit 10 to provide it to the second electron gun 9.

그리고, 증폭된 영상신호는 동기검파회로(11)에 인가되는바, 동기검파회로(11)는 영상신호에서 동기신호를 검출하여 수직 발진증폭회로(13)와 수평발진증폭회로(14)에 인가한다. 이때 수직 발진 증폭회로(13)는 동기신호중 수직동기신호만을 발진하여 증폭시킨뒤 수직 편향코일(12)에 인가하고 수평발진증폭회로(14)는 동기신호중 수평동기신호만을 발진, 증폭시킨뒤 수평편향코일(12)에 제공한다. 또한, 동기신호는 1/2H 지연회로(15)에 입력되어 1/2H 시간동안 지연된뒤 수직발진증폭회로(17) 및 수평발진회로(18)에 의해 발진, 증폭되어 제2전자총의 수직 및 수평편향코일(16)에 인가된다.The amplified video signal is applied to the synchronous detection circuit 11, and the synchronous detection circuit 11 detects the synchronous signal from the video signal and applies it to the vertical oscillation amplifier circuit 13 and the horizontal oscillation amplifier circuit 14. do. At this time, the vertical oscillation amplification circuit 13 oscillates and amplifies only the vertical synchronization signal among the synchronization signals and applies it to the vertical deflection coil 12, and the horizontal oscillation amplification circuit 14 oscillates and amplifies only the horizontal synchronization signals among the synchronization signals and then horizontally deflects them. It is provided to the coil 12. In addition, the synchronization signal is input to the 1 / 2H delay circuit 15, delayed for 1 / 2H time, and then oscillated and amplified by the vertical oscillation amplifier 17 and the horizontal oscillation circuit 18 to be vertical and horizontal in the second electron gun. Is applied to the deflection coil 16.

이때 제1전자총(7)에서는 원영상 신호가, 제2전자총(9)에서는 1H 시간지연된 영상신호가 재생된다. 따라서, 제1전자총(7)에서 1필드 구성하고 제2전자총(9)에서는 1H 지연된 영상신호를 2필드를 구성하게 된다. 이렇게 하면 4개의 필드가 모여서 1화면을 구성하게 된다. 예컨대 제2도에 도시한 비월주사의 실예에서, 제1전자총(7)에서는 A점에서 주사를 시작하고, 제2전자총에서는 B점에서 1H 시간지연된 신호를 주사를 시작하여 262,5개의 주사선을 각각 구성한후 제1전자총은 B점에서, 제2전자총은 A점에서 다시 262,5개의 주사선을 구성하여 1화면을 이루므로 실제적으로 2배의 해상도가 얻어질 수 있다.At this time, the original video signal is reproduced in the first electron gun 7 and the video signal delayed by 1H in the second electron gun 9. Therefore, the first electron gun 7 constitutes one field and the second electron gun 9 constitutes two fields of the video signal delayed by 1H. In this way, four fields are gathered to form one screen. For example, in the example of interlaced scanning shown in FIG. 2, the first electron gun 7 starts scanning at point A, and the second electron gun starts scanning the 1H time-delayed signal at point B to generate 262,5 scan lines. After each configuration, since the first electron gun constitutes one screen by forming 262,5 scanning lines again at the point B and the second electron gun at the point A, the resolution can be substantially doubled.

전술한 바와같이, 본 발명는 1H 시간지연된 영상신호를 다른 전자총으로 보내줌으로써 실제적으로는 4필드가 1화면을 구성하는 것처럼 동작하므로 종래의 텔레비젼보다 훨씬 우수한 선명도를 얻을 수 있는 특징을 지닌 것이다.As described above, the present invention has a feature that can achieve much better clarity than a conventional television since the 1H time-delayed video signal is transmitted to another electron gun in practice as if four fields constitute one screen.

Claims (1)

영상증폭회로(8)에서 영상증폭된 신호를 1수평 동기시간동안 지연시키기 위한 1H 지연 회로(10)와, 또한, 음성증폭회로(8)에서 영상증폭된 신호는 동기검파회로(11)를 통하여 동기 검파된 신호를 1/2 수평동기시간 동안 지연시키기 위한 1/2H 지연회로(15)와, 상기 1/2H 지연회로(15)에서 1/2H 지연된 신호를 수직 및 수평 발진 증폭하여 편향코일(16)에 제공하기 위한 수직 및 수평 발진증폭회로(17),(18) 및 상기 영상증폭회로(8)에서 출력된 원영상 신호와 1H 지연회로(10)에서 출력된 1H 지연된 영상신호를 재생시키기 위한 2개의 전자총(7),(8)으로 구성시켜서 됨을 특징으로 하는 2개의 전자총을 이용한 고화질 텔레비젼.The 1H delay circuit 10 for delaying the signal amplified by the video amplification circuit 8 for one horizontal synchronizing time, and the signal amplified by the audio amplification circuit 8 via the synchronous detection circuit 11. The 1 / 2H delay circuit 15 for delaying the synchronously detected signal for 1/2 horizontal synchronizing time, and the 1 / 2H delayed signal in the 1 / 2H delay circuit 15 are vertically and horizontally oscillated amplified to deflect the coil ( 16) reproduce the original video signal output from the vertical and horizontal oscillation amplifier circuits 17 and 18 and the video amplifier circuit 8 and the 1H delayed video signal output from the 1H delay circuit 10. High-definition television using two electron guns, characterized in that it consists of two electron guns (7), (8) for.
KR1019890002702A 1989-03-04 1989-03-04 High definition television having two electronic guns KR920005199B1 (en)

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KR920005199B1 true KR920005199B1 (en) 1992-06-29

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