JPS5567247A - Digital frequency display unit - Google Patents

Digital frequency display unit

Info

Publication number
JPS5567247A
JPS5567247A JP14028878A JP14028878A JPS5567247A JP S5567247 A JPS5567247 A JP S5567247A JP 14028878 A JP14028878 A JP 14028878A JP 14028878 A JP14028878 A JP 14028878A JP S5567247 A JPS5567247 A JP S5567247A
Authority
JP
Japan
Prior art keywords
signals
intermediate frequency
display
display unit
frequency display
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP14028878A
Other languages
Japanese (ja)
Inventor
Minoru Take
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRIO KENWOOD CORP
Kenwood KK
Original Assignee
TRIO KENWOOD CORP
Kenwood KK
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 TRIO KENWOOD CORP, Kenwood KK filed Critical TRIO KENWOOD CORP
Priority to JP14028878A priority Critical patent/JPS5567247A/en
Publication of JPS5567247A publication Critical patent/JPS5567247A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means

Abstract

PURPOSE:To prevent flicker at a tuning operation time by blanking display when intermediate frequency signals do not exist. CONSTITUTION:Signals which come from antenna 1 are mixed with signals from local oscillator 4 by mixer 3 through amplifier 2 and are applied to intermediate frequency amplifier 5 and are detected by frequency discriminator 6. Signals of intermediate frequency amplifier 5 are applied to the blanking terminal of display control circuit 8 through diode 10; and when intermediate frequency signals do not exist, display on display equipment 9 for the output of counter 7 is blanked.
JP14028878A 1978-11-14 1978-11-14 Digital frequency display unit Pending JPS5567247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14028878A JPS5567247A (en) 1978-11-14 1978-11-14 Digital frequency display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14028878A JPS5567247A (en) 1978-11-14 1978-11-14 Digital frequency display unit

Publications (1)

Publication Number Publication Date
JPS5567247A true JPS5567247A (en) 1980-05-21

Family

ID=15265290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14028878A Pending JPS5567247A (en) 1978-11-14 1978-11-14 Digital frequency display unit

Country Status (1)

Country Link
JP (1) JPS5567247A (en)

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