KR960028574A - Clarity Control Device and Method for Low Signal of TV - Google Patents

Clarity Control Device and Method for Low Signal of TV Download PDF

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Publication number
KR960028574A
KR960028574A KR1019940039466A KR19940039466A KR960028574A KR 960028574 A KR960028574 A KR 960028574A KR 1019940039466 A KR1019940039466 A KR 1019940039466A KR 19940039466 A KR19940039466 A KR 19940039466A KR 960028574 A KR960028574 A KR 960028574A
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KR
South Korea
Prior art keywords
broadcast signal
level
strength
sharpness
module
Prior art date
Application number
KR1019940039466A
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Korean (ko)
Inventor
김성준
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940039466A priority Critical patent/KR960028574A/en
Publication of KR960028574A publication Critical patent/KR960028574A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Picture Signal Circuits (AREA)

Abstract

본 발명은 텔레비전의 약신호시 선명도 제어장치와 그 방법에 관한 것으로, 안테나를 통해 수신된 방송신호를 튜너에 의해 선국하여 IF모듈에서 처리하고, 그 IF모듈에서 처리된 방송신호를 음성 및 영상처리부에서 각기 처리하여 음성 및 영상을 재생하도록 된 텔레비전에서, 신호세기검출수단에서 상기 IF모듈에서 처리되는 방송신호레벨의 세기를 검출하고, 그 신호세기검출수단에 의해 검출된 방송신호레벨의 세기에 기초하여 현재의 방송신호가 소정 레벨이하인 경우 제어수단이 현재의 선명도레벨을 조정하여 화면의 노이즈성분의 강조상태를 완화시켜 방송신호의 약신호시 화면상에서 노이즈성분이 강조되는 현상이 배제되도록 한 것이다.The present invention relates to a sharpness control apparatus and method for weak signals of a television, and tunes a broadcast signal received through an antenna by a tuner and processes it in an IF module, and processes the broadcast signal processed by the IF module in an audio and video processing unit. In a television configured to reproduce audio and video by respectively processing in the apparatus, signal strength detecting means detects the strength of the broadcast signal level processed by the IF module and based on the strength of the broadcast signal level detected by the signal strength detecting means. When the current broadcast signal is below the predetermined level, the control means adjusts the current sharpness level to alleviate the emphasis state of the noise component of the screen so that the phenomenon of the noise component is emphasized on the screen when the broadcast signal is weak.

Description

텔리비젼의 약신호시 선명도 제어장치와 그 방법Television's sharpness control device for weak signal and its method

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

제1도는본 발명의 바람직한 일실시예에 따른 텔레비전의 약신호시 선명도 제어장치를 나타낸 블럭구성도1 is a block diagram showing an apparatus for controlling sharpness in a weak signal of a television according to an exemplary embodiment of the present invention.

Claims (6)

안테나를 통해 수신된 방송신호를 튜너에 의해 선국하여 IF모듈에서 처리하고, 그 IF모듈에서 처리된 방송신호를 음성 및 영상처리부에서 각기 처리하여 음성 및 영상을 재생하도록 된 텔레비전에 있어서, 상기 IF모듈에서 처리되는 방송신호레벨의 세기를 검출하는 신호세기검출수단과, 상기 신호세기검출수단에 의해 검출된 방송신호레벨의 세기에 기초하여 현재의 방송신호가 소정 레벨이하인 경우 현재의 선명도레벨을 조정하는 제어수단, 상기 선명도의 레벨과 상기 신호세기에 대한 선명도의 조정데이터가 저장된 메모리수단을 더 갖추어 구성된 것을 특징으로 하는 텔레비전의 약신호시 선명도 제어장치In a television configured to tune a broadcast signal received through an antenna by a tuner and process it in an IF module, and process the broadcast signal processed by the IF module in a speech and image processing unit, respectively, to reproduce audio and video. A signal intensity detecting means for detecting the strength of the broadcast signal level processed by the < RTI ID = 0.0 > and < / RTI > And a control means and memory means for storing adjustment data of the sharpness level and the signal strength. 제1항에 있어서, 상기 제어수단은 상기 방송신호레벨의 세기가 소정레벨, 정확하게는 표준레벨(대략 60dB) 이하의 약신호인 경우 상기 현재의 선명도 레벨이 상대적으로 높으면 그 선명도를 일정한 레벨로 감소시키게 되는 것을 특징으로 하는 텔레비전의 약신호시 선명도 제어장치2. The method of claim 1, wherein the control means decreases the sharpness to a constant level when the current sharpness level is relatively high when the strength of the broadcast signal level is a weak signal of a predetermined level or precisely less than a standard level (approximately 60 dB). Clarity control device for weak signals of television, characterized in that 제1항에 있어서, 상기 제어수단은 상기 방송신호레벨의 세기가 검출되면 상기 방송신호레벨의 세기에 대응하여 그 선명도를 증감조정하게 되는 것을 특징으로 하는 텔레비전의 약신호시 선명도 제어장치The apparatus of claim 1, wherein the control means adjusts the sharpness of the broadcast signal level in response to the strength of the broadcast signal level. 안테나를 통해 수신된 방송신호를 튜너에 의해 선국하여 IF모듈에서 처리하고, 그 IF모듈에서 처리된 방송신호를 음성 및 영상처리부에서 각기 처리하여 음성 및 영상을 재생하도록 된 텔레비전에 있어서, 신호세기검출수단에 의해 상기 IF모듈에서 처리되는 방송신호 레벨의 세기를 검출하고, 상기 신호세기검출수단에 의해 검출된 방송신호레벨의 세기에 기초하여 현재의 방송신호가 소정 레벨이하인 경우 제어수단의 제어하에 현재의 선명도레벨을 조정하여 화면의 노이즈성분의 강조상태를 완화시키도록 된 것을 특징으로 하는 텔레비전의 약신호시 선명도 제어방법In a television configured to tune a broadcast signal received through an antenna by a tuner and process it in an IF module, and process the broadcast signal processed by the IF module in a speech and image processing unit, respectively, to reproduce the sound and video. Means for detecting the strength of the broadcast signal level processed by the IF module, and if the current broadcast signal is below a predetermined level based on the strength of the broadcast signal level detected by the signal strength detecting means, The sharpness control method for weak signals of a television, characterized in that to reduce the emphasis state of the noise component of the screen by adjusting the sharpness level of the 제4항에 있어서, 상기 제어수단에 의한 선명도의 조정은 상기 방송신호레벨의 세기가 약신호인 경우 상기 텔레비전의 선명도의 레벨을 일정하게 감소시키는 것을 특징으로 하는 텔레비전의 약신호시 선명도 제어방법5. The method according to claim 4, wherein the adjustment of the sharpness by the control means reduces the level of the sharpness of the television constantly when the strength of the broadcast signal level is a weak signal. 제4항에 있어서, 상기 제어수단에 의한 선명도의 조정은 상기 방송신호레벨의 세기에 대응하여 행해지는 것을 특징으로 하는 텔레비전의 약신호시 선명도 제어방법5. The method according to claim 4, wherein the adjustment of the sharpness by the control means is performed corresponding to the strength of the broadcast signal level.
KR1019940039466A 1994-12-30 1994-12-30 Clarity Control Device and Method for Low Signal of TV KR960028574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940039466A KR960028574A (en) 1994-12-30 1994-12-30 Clarity Control Device and Method for Low Signal of TV

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940039466A KR960028574A (en) 1994-12-30 1994-12-30 Clarity Control Device and Method for Low Signal of TV

Publications (1)

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KR960028574A true KR960028574A (en) 1996-07-22

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Application Number Title Priority Date Filing Date
KR1019940039466A KR960028574A (en) 1994-12-30 1994-12-30 Clarity Control Device and Method for Low Signal of TV

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000044743A (en) * 1998-12-30 2000-07-15 전주범 Uniformization apparatus of outer video signal level in digital tv

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000044743A (en) * 1998-12-30 2000-07-15 전주범 Uniformization apparatus of outer video signal level in digital tv

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