KR960009385A - Frequency modulation deviation automatic adjustment device and method - Google Patents

Frequency modulation deviation automatic adjustment device and method Download PDF

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Publication number
KR960009385A
KR960009385A KR1019940021604A KR19940021604A KR960009385A KR 960009385 A KR960009385 A KR 960009385A KR 1019940021604 A KR1019940021604 A KR 1019940021604A KR 19940021604 A KR19940021604 A KR 19940021604A KR 960009385 A KR960009385 A KR 960009385A
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KR
South Korea
Prior art keywords
signal
adjustment
unit
adjusting
adjustment target
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KR1019940021604A
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Korean (ko)
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KR960014532B1 (en
Inventor
이수원
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배순훈
대우전자 주식회사
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Priority to KR1019940021604A priority Critical patent/KR960014532B1/en
Publication of KR960009385A publication Critical patent/KR960009385A/en
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Publication of KR960014532B1 publication Critical patent/KR960014532B1/en

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1475—Subharmonic mixer arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0086—Reduction or prevention of harmonic frequencies

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

주파수 변조 편차조정을 자동으로 하기 위해 조정대상장치 무패턴 영상 신호를 인가하고 그 출력신호를 대역 통과필터로 여과하고, 제1스위칭부의 채널1로 통과시킨다. 채널1을 통과한 신호를 고주파 필터로 고주파 잡음을 제거하고 제2스위칭부에 인가한다. 제어부는 제2스위칭부에 제어신호를 보내 채널1로 신호를 통과시키고 그 신호를 오실로스코프로 계측하여 그값에따라 조정부에 제어신호를 출력하여 조정대상장치의 가변저항을 조정한다. 오실로스코프에 의한 조정이 끝나면 제2스위칭부에 제어신호를 보내 채널 2로 신호를 통과시키고 그 채널에 접속된 주파수 카운터로 주파수를 계측하고 그 값에 따라 조정부에 제어신호를 보내 조정대상장치의 가변저항을 조정한다. 이렇게 하나의 대역이 끝나면 100% 휘도신호를 조정대상장치에 인가하고 그 출력신호를 대역 통과필터로 여과하고 제1스위칭부에 제어신호를 출력하여 채널2로 통과시켜 상기와 같은 과정을 반복한다.In order to automatically adjust the frequency modulation deviation, a patterned video signal to be adjusted is applied, and the output signal is filtered by a band pass filter and passed through channel 1 of the first switching unit. The signal passing through the channel 1 is removed with a high frequency filter and applied to the second switching unit. The control unit sends a control signal to the second switching unit, passes the signal through the channel 1, measures the signal with an oscilloscope, and outputs the control signal to the adjusting unit according to the value to adjust the variable resistance of the adjustment target device. After adjusting by oscilloscope, send control signal to 2nd switching part to pass the signal through channel 2, measure the frequency with frequency counter connected to the channel, and send control signal to adjusting part according to the value of the variable resistor of the adjustment target device. Adjust it. When one band is finished, the 100% luminance signal is applied to the adjustment target device, the output signal is filtered by the band pass filter, the control signal is output to the first switching unit, and the channel 2 is repeated.

Description

주파수 변조편차 자동조정장치 및 방법Frequency modulation deviation automatic adjustment device and method

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

제1도는 본 발명에 의한 주파수 변조편차 자동조정장치의 구성을 보이는 블록도이다.1 is a block diagram showing the configuration of the automatic frequency modulation deviation adjustment apparatus according to the present invention.

제3도는 본 발명에 의한 주파수 변조편차 자동조정방법을 보이는 플로우챠트이다.3 is a flowchart showing a method for automatically adjusting frequency modulation deviation according to the present invention.

Claims (3)

주파수 변조편차 자동조정장치에 있어서, 조정대상 PCB에 영상신호를 인가하는 패턴발생부와, 상기 조정대상 PCB에서 출력되는 FM변조신호에서 특정 주파수만 통과시키는 다수의 필터와, 상기 다수의 필터의 출력을 선택적으로 접속하는 제1스위칭부와, 상기 제1스위칭부의 출력에서 고주파 노이즈를 제거하는 노이즈 필터와, 제어신호에 따라 상기 노이즈 필터의 출력을 다수의 채널중 하나의 채널에 접속하는 제2스위칭부와, 제어신호에 따라 상기 조정대상 PCB에 장치된 조정소자를 조정하는 조정부와, 상기 제2스위칭부의 각 채널에 연결된 다수의 계측기와, 상기 각부를 제어하고, 상기 계측기로부터 데이타를 받아 상기 조정부에 제어신호를 보내 조정대상 PCB를 조정하고 그 조정결과를 상기 계측기로부터 읽어들여 원하는 값으로 조정되게 하는 제어부를 구비하는 것을 특징으로 하는 주파수 변조편차 자동조정장치.A frequency modulation deviation automatic adjustment device, comprising: a pattern generator for applying an image signal to an adjustment target PCB, a plurality of filters passing only a specific frequency in the FM modulation signal output from the adjustment target PCB, and outputting the plurality of filters A first switching unit for selectively connecting a signal, a noise filter for removing high frequency noise from an output of the first switching unit, and a second switching unit for connecting the output of the noise filter to one of a plurality of channels according to a control signal. And an adjusting unit for adjusting the adjusting element mounted on the adjustment target PCB according to a control signal, a plurality of measuring instruments connected to each channel of the second switching unit, controlling the respective units, and receiving data from the measuring unit. Control signal is sent to control the PCB to be adjusted and the result of the adjustment is read from the instrument and adjusted to the desired value. Frequency modulation deviation automatic adjustment device characterized in that it comprises a unit. 제1항에 있어서, 상기 제어부는 상기 다수의 계측기중 하나의 계측기로부터 데이터를 받아 조정부를 제어하고, 원하는 값으로 조정되면, 다른 계측기로부터 데이터를 받아 조정부를 제어하는 방식으로 하나의 측정값을 다수의 계측기로 조정하는 것을 특징으로 하는 주파수 변조편차 자동조정장치.The method of claim 1, wherein the control unit receives data from one of the plurality of measuring instruments to control the adjusting unit, and when adjusted to a desired value, the control unit receives a plurality of measurement values by receiving data from another measuring unit to control the adjusting unit. Frequency modulation deviation automatic adjustment device, characterized in that the adjustment with a measuring instrument. 주파수 변조편차 자동조정방법에 있어서, 조정대상장치에 영상신호를 인가하는 단계와, 상기 조정대상장치에서 출력되는 신호중 특정주파수를 선택하는 단계와, 상기 선택한 주파수를 다수의 계측기중 하나의 계측기에 접속하는 단계와, 상기 접속된 계측기의 값에 따라 조정대상장치를 조정하는 단계와, 상기 조정이 원하는 값으로 조정되면, 상기 선택한 주파수를 다른 계측기에 접속하여 그 계측기의 값에 따라 조정대상장치를 조정하는 단계를 구비하는 것을 특징으로 하는 주파수 변조편차 자동조정방법.A method for automatically adjusting the frequency modulation deviation, the method comprising: applying an image signal to an adjustment target device, selecting a specific frequency among signals output from the adjustment target device, and connecting the selected frequency to one of a plurality of instruments And adjusting the adjustment target device according to the value of the connected instrument, and when the adjustment is adjusted to a desired value, the selected frequency is connected to another measurement instrument to adjust the adjustment target device according to the value of the measurement instrument. Frequency modulation deviation automatic adjustment method characterized in that it comprises a step of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940021604A 1994-08-30 1994-08-30 Apparatus and method for adjusting a frequency modulation variation KR960014532B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940021604A KR960014532B1 (en) 1994-08-30 1994-08-30 Apparatus and method for adjusting a frequency modulation variation

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Application Number Priority Date Filing Date Title
KR1019940021604A KR960014532B1 (en) 1994-08-30 1994-08-30 Apparatus and method for adjusting a frequency modulation variation

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KR960009385A true KR960009385A (en) 1996-03-22
KR960014532B1 KR960014532B1 (en) 1996-10-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100450521B1 (en) * 2002-01-14 2004-10-06 주식회사 드림바이오스 The on-line measuring device of sludge retention time(SRT) of WWTPS and toxic effect of waste using biological respiration rate
KR20190089662A (en) 2018-01-23 2019-07-31 터보솔루션 주식회사 Valve controller for multi-aeration
KR20200053443A (en) 2020-04-01 2020-05-18 터보솔루션 주식회사 Valve controller for multi-aeration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100450521B1 (en) * 2002-01-14 2004-10-06 주식회사 드림바이오스 The on-line measuring device of sludge retention time(SRT) of WWTPS and toxic effect of waste using biological respiration rate
KR20190089662A (en) 2018-01-23 2019-07-31 터보솔루션 주식회사 Valve controller for multi-aeration
KR20200053443A (en) 2020-04-01 2020-05-18 터보솔루션 주식회사 Valve controller for multi-aeration

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