JPS56111313A - Fm tuning display device - Google Patents

Fm tuning display device

Info

Publication number
JPS56111313A
JPS56111313A JP1434280A JP1434280A JPS56111313A JP S56111313 A JPS56111313 A JP S56111313A JP 1434280 A JP1434280 A JP 1434280A JP 1434280 A JP1434280 A JP 1434280A JP S56111313 A JPS56111313 A JP S56111313A
Authority
JP
Japan
Prior art keywords
light emitting
output
muting
detuning
perfect
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
JP1434280A
Other languages
Japanese (ja)
Inventor
Minoru Oishi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1434280A priority Critical patent/JPS56111313A/en
Publication of JPS56111313A publication Critical patent/JPS56111313A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/12—Electrically-operated arrangements for indicating correct tuning
    • H03J3/14—Visual indication, e.g. magic eye

Abstract

PURPOSE:To display the best tuning point easily by driving a display circuit with the NOT output of OR between a muting contrl signal and high-freqency and low- frequency detuning signals. CONSTITUTION:When a transition from perfect detuning to detuning is made and a negative voltage is developed at output terminal B of FM detecting circuit 10, light emitting diode 20 turns on and transistors Q1 and Q2 stay on. when a perfect tuning state is set, a muting signal from muting control signal generating circuit 30 is ceased. Simultaneously, no output is generated at output terminals A and B of FM detecting circuit 10 and light emitting diodes 18 and 20 do not emit light any more. Then, transstors Q1 and Q2 turn off, so that light emitting diode 28 showing the tuning state will turn on.
JP1434280A 1980-02-08 1980-02-08 Fm tuning display device Pending JPS56111313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1434280A JPS56111313A (en) 1980-02-08 1980-02-08 Fm tuning display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1434280A JPS56111313A (en) 1980-02-08 1980-02-08 Fm tuning display device

Publications (1)

Publication Number Publication Date
JPS56111313A true JPS56111313A (en) 1981-09-03

Family

ID=11858387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1434280A Pending JPS56111313A (en) 1980-02-08 1980-02-08 Fm tuning display device

Country Status (1)

Country Link
JP (1) JPS56111313A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107777U (en) * 1983-12-26 1985-07-22 株式会社光電製作所 direction finder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107777U (en) * 1983-12-26 1985-07-22 株式会社光電製作所 direction finder
JPH0416945Y2 (en) * 1983-12-26 1992-04-15

Similar Documents

Publication Publication Date Title
JPS56111313A (en) Fm tuning display device
JPS53105992A (en) Stabilizing circuit for lumious element output
JPS5343487A (en) Semiconductor laser output control circuit
JPS5762774A (en) Output voltae control circuit
JPS57119311A (en) Compensating circuit for signal detector
JPS56164966A (en) Electric field intensity display device
JPS56146318A (en) Display device
JPS56138336A (en) Optical not circuit
KR790001916Y1 (en) Tuning indicator
KR860003487Y1 (en) Voltage booster circuit of wireless keyboard
JPS57143911A (en) Variable resistance circuit
KR850001960Y1 (en) Output level meter auto changing circuit
JPS5746524A (en) Remote control responder
JPS5636228A (en) Photo coupling element
JPS554168A (en) Multiplex signal processor
JPS5755637A (en) Am stereophonic receiver
JPS56162539A (en) Signal-line driving circuit
KR880013150A (en) Automatic recording level indication and control
JPS5579725A (en) Alarm device for automobile
JPS5761356A (en) Information transmission and reception device
JPS57162521A (en) Gate circuit
JPS5778283A (en) Video detection circuit
JPS57185725A (en) Signal input circuit
JPS5623036A (en) Fm tuner
JPS52155988A (en) Driving circuit of light emitting diode