KR890011257U - 주파수 자동 검출회로 - Google Patents

주파수 자동 검출회로

Info

Publication number
KR890011257U
KR890011257U KR2019870020495U KR870020495U KR890011257U KR 890011257 U KR890011257 U KR 890011257U KR 2019870020495 U KR2019870020495 U KR 2019870020495U KR 870020495 U KR870020495 U KR 870020495U KR 890011257 U KR890011257 U KR 890011257U
Authority
KR
South Korea
Prior art keywords
detection circuit
automatic detection
frequency automatic
frequency
circuit
Prior art date
Application number
KR2019870020495U
Other languages
English (en)
Other versions
KR900003070Y1 (ko
Inventor
곽정희
Original Assignee
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.)
Filing date
Publication date
Application filed by 주식회사 금성사 filed Critical 주식회사 금성사
Priority to KR2019870020495U priority Critical patent/KR900003070Y1/ko
Publication of KR890011257U publication Critical patent/KR890011257U/ko
Application granted granted Critical
Publication of KR900003070Y1 publication Critical patent/KR900003070Y1/ko

Links

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)
  • Measuring Frequencies, Analyzing Spectra (AREA)
KR2019870020495U 1987-11-25 1987-11-25 주파수 자동 검출회로 KR900003070Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870020495U KR900003070Y1 (ko) 1987-11-25 1987-11-25 주파수 자동 검출회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870020495U KR900003070Y1 (ko) 1987-11-25 1987-11-25 주파수 자동 검출회로

Publications (2)

Publication Number Publication Date
KR890011257U true KR890011257U (ko) 1989-07-13
KR900003070Y1 KR900003070Y1 (ko) 1990-04-12

Family

ID=19269748

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870020495U KR900003070Y1 (ko) 1987-11-25 1987-11-25 주파수 자동 검출회로

Country Status (1)

Country Link
KR (1) KR900003070Y1 (ko)

Also Published As

Publication number Publication date
KR900003070Y1 (ko) 1990-04-12

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Legal Events

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A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
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Payment date: 19951226

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee