KR890015607A - 주파수 검출기 - Google Patents

주파수 검출기 Download PDF

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Publication number
KR890015607A
KR890015607A KR1019890002227A KR890002227A KR890015607A KR 890015607 A KR890015607 A KR 890015607A KR 1019890002227 A KR1019890002227 A KR 1019890002227A KR 890002227 A KR890002227 A KR 890002227A KR 890015607 A KR890015607 A KR 890015607A
Authority
KR
South Korea
Prior art keywords
period
signal under
under measurement
frequency detector
counter
Prior art date
Application number
KR1019890002227A
Other languages
English (en)
Other versions
KR0120742B1 (ko
Inventor
나오다까 안도
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR890015607A publication Critical patent/KR890015607A/ko
Application granted granted Critical
Publication of KR0120742B1 publication Critical patent/KR0120742B1/ko

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Synchronizing For Television (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Television Systems (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

내용 없음

Description

주파수 검출기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 주파수 검출기의 일예를 나타내는 구성도. 제2도는 제1도예의 주파수 검출과정을 설명하기 위한 선도.

Claims (1)

  1. 피측정신호의 소정주기동안 기준클록을 계수하는 카운터와, 이 카운터의 계수치와 설정주기와의 대소에 따라서 상기 설정주기에 제1의 상수를 가산 또는 감산하는 연산회로를 가지며, 상기 카운터의 계수치와 상기 설정주기와의 차가 제2의 상수를 초과하고 있을때는 상기 연산회로의 출력치로 상기 설정주기를 갱신하면서, 상기 피측정신호의 주기의 근사치를 구함으로써, 상기 피측정신호의 주파수를 검출하도록 한 것을 특징으로 하는 주파수 검출기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890002227A 1988-03-14 1989-02-25 주파수 검출기 KR0120742B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP63-59974 1988-03-14
JP88-59974 1988-03-14
JP63059974A JPH01232393A (ja) 1988-03-14 1988-03-14 周波数検出器

Publications (2)

Publication Number Publication Date
KR890015607A true KR890015607A (ko) 1989-10-30
KR0120742B1 KR0120742B1 (ko) 1997-11-04

Family

ID=13128653

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890002227A KR0120742B1 (ko) 1988-03-14 1989-02-25 주파수 검출기

Country Status (6)

Country Link
US (1) US4922343A (ko)
EP (1) EP0333382B1 (ko)
JP (1) JPH01232393A (ko)
KR (1) KR0120742B1 (ko)
CA (1) CA1313221C (ko)
DE (1) DE68909453T2 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2668438B2 (ja) * 1989-04-21 1997-10-27 三菱電機株式会社 データ検索装置
US5341217A (en) * 1990-03-06 1994-08-23 Martin Marietta Corporation Digital adaptive video synchronizer
US5126639A (en) * 1991-06-04 1992-06-30 Zenith Electronics Corporation Sequential scan system changes for multiple frequency range oscillator and control
JPH0755856A (ja) * 1993-08-23 1995-03-03 Mitsubishi Electric Corp 周期測定装置
JP3149124B2 (ja) * 1995-03-06 2001-03-26 株式会社コンテック 色信号サンプリング方法
US6097440A (en) * 1995-11-17 2000-08-01 Sony Corporation Synchronous processing device
US6108046A (en) * 1998-06-01 2000-08-22 General Instrument Corporation Automatic detection of HDTV video format
EP1370090A1 (en) * 2002-06-03 2003-12-10 Sony International (Europe) GmbH Video format detector
CN104808056B (zh) * 2015-04-19 2018-12-11 华南理工大学 一种基于比较器转换的频率特性测试方法与装置
KR102660412B1 (ko) * 2018-10-30 2024-04-25 에스케이하이닉스 주식회사 주파수 감지 회로

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735387A (en) * 1969-08-21 1973-05-22 Gen Electric Means for inhibiting flutter in a numerical display
JPS50132966A (ko) * 1974-04-05 1975-10-21
US4144489A (en) * 1974-09-23 1979-03-13 Texas Instruments Incorporated Simplified frequency to digital converter using all digital electronics
DE2850082A1 (de) * 1978-11-18 1980-05-29 Licentia Gmbh Anordnung zur aufbereitung periodischer signale
DE3007657A1 (de) * 1980-02-29 1981-09-17 Hermann Dipl.-Ing. Dr. 5307 Wachtberg Schäfer Quarzgenauer taktfrequenzmesser fuer binaer codierte signale
JPS6080786A (ja) * 1983-10-07 1985-05-08 Advantest Corp 時間間隔測定装置
DE3578913D1 (de) * 1985-09-06 1990-08-30 Itt Ind Gmbh Deutsche Digitalschaltung zur frequenzbereichsklassifizierung der frequenz eines signals.

Also Published As

Publication number Publication date
EP0333382B1 (en) 1993-09-29
JPH01232393A (ja) 1989-09-18
US4922343A (en) 1990-05-01
EP0333382A1 (en) 1989-09-20
CA1313221C (en) 1993-01-26
DE68909453D1 (de) 1993-11-04
DE68909453T2 (de) 1994-03-31
KR0120742B1 (ko) 1997-11-04

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