KR920014200A - Frequency discrimination method using microcomputer - Google Patents

Frequency discrimination method using microcomputer Download PDF

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Publication number
KR920014200A
KR920014200A KR1019900020691A KR900020691A KR920014200A KR 920014200 A KR920014200 A KR 920014200A KR 1019900020691 A KR1019900020691 A KR 1019900020691A KR 900020691 A KR900020691 A KR 900020691A KR 920014200 A KR920014200 A KR 920014200A
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KR
South Korea
Prior art keywords
value
microcomputer
frequency
discrimination method
frequency discrimination
Prior art date
Application number
KR1019900020691A
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Korean (ko)
Inventor
김종철
Original Assignee
한태희
주식회사 금성사
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.)
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Publication date
Application filed by 한태희, 주식회사 금성사 filed Critical 한태희
Priority to KR1019900020691A priority Critical patent/KR920014200A/en
Publication of KR920014200A publication Critical patent/KR920014200A/en

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Abstract

내용 없음No content

Description

마이컴을 이용한 주파수 판별방법Frequency discrimination method using microcomputer

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

제1도는 본 발명 방법을 설명하기 위한 프롤우챠트, 제2도는 본 발명 방법을 적용한 장치의 블록 구성도, 제3도의 (가),(나),(다)는 본 발명을 설명하기 위한 신호의 타이밍도.1 is a flow chart for explaining the method of the present invention, FIG. 2 is a block diagram of a device to which the present invention is applied, and (a), (b) and (c) of FIG. 3 are signals for explaining the present invention. Timing diagram.

Claims (1)

마이컴(1)으로부터 출력된 샘플링 제어신호(ST)에 의하여 소정시간 (Ts)동안 샘플링한 스평동기신호(fh)의 값을 샘플링 카운트수단(2)으로 계수하고 이어서 그 계수된 값(A)을 판별하여 홀수인 경우에는 A값을 -1로 감산하고 이어서 A값을 소정의 연산팩터(N)로 나눈값으로 수평동기신호(fh)의 주파수를 판별하는 과정과, 계수된 값(A)이 짝수인 경우에는 A값을 소정의 연산팩터(N)로 나눈값으로 수평동기신호(fh)의 주파수를 판별하는 과정으로 이루어진것을 특징으로 하는 마이컴을 이용한 주파수 판별방법.The sampling counting means 2 counts the value of the span synchronizing signal fh sampled for a predetermined time Ts by the sampling control signal ST output from the microcomputer 1, and then calculates the counted value A. In the case of the odd number, the process of determining the frequency of the horizontal synchronization signal fh by subtracting the A value by -1 and dividing the A value by a predetermined operation factor N, and the counted value A In the case of an even number, the frequency discrimination method using a microcomputer is characterized in that the frequency of the horizontal synchronization signal (fh) is determined by dividing the A value by a predetermined calculation factor (N). ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019900020691A 1990-12-15 1990-12-15 Frequency discrimination method using microcomputer KR920014200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900020691A KR920014200A (en) 1990-12-15 1990-12-15 Frequency discrimination method using microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900020691A KR920014200A (en) 1990-12-15 1990-12-15 Frequency discrimination method using microcomputer

Publications (1)

Publication Number Publication Date
KR920014200A true KR920014200A (en) 1992-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900020691A KR920014200A (en) 1990-12-15 1990-12-15 Frequency discrimination method using microcomputer

Country Status (1)

Country Link
KR (1) KR920014200A (en)

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