JPS57140036A - Display device - Google Patents

Display device

Info

Publication number
JPS57140036A
JPS57140036A JP2625981A JP2625981A JPS57140036A JP S57140036 A JPS57140036 A JP S57140036A JP 2625981 A JP2625981 A JP 2625981A JP 2625981 A JP2625981 A JP 2625981A JP S57140036 A JPS57140036 A JP S57140036A
Authority
JP
Japan
Prior art keywords
electromagnetic waves
signal
circuit
received electromagnetic
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.)
Granted
Application number
JP2625981A
Other languages
Japanese (ja)
Other versions
JPS632373B2 (en
Inventor
Tomoyoshi Fujita
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP2625981A priority Critical patent/JPS57140036A/en
Publication of JPS57140036A publication Critical patent/JPS57140036A/en
Publication of JPS632373B2 publication Critical patent/JPS632373B2/ja
Granted 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 achieve accurate display of quality of received electromagnetic waves, by detecting, rectifying and amplifying high-frequency noise included in a demodulation signal output of the received electromagnetic waves and driving a display device. CONSTITUTION:In a radio receiver, reception electromagnetic waves from an antenna 1 are RF-amplified at 2, amplified at 5 at a mixing stage 3 after conversion to an IF signal and a signal detected at 6 is separated into left and right stereo signals at a stereo stage 7. High-frequency noise included in an output signal of the detection stage 6 is detected and rectified at a noise dtection circuit 8 including a BPF, amplified at a DC amplifying circuit 9 and inputted to a correction circuit 10. The circuit 10 corrects high frequency noise generated at the receiver itself and displays the quality of the received electromagnetic waves through the application of a signal to a display 12 via a driving signal generating circuit 11. Thus, various interferences such as multipath interference and beat included in the received electromagnetic waves are detected on the display 12, and an excellent reception state can be achieved by adjusting the tuning state according to the state of detection.
JP2625981A 1981-02-24 1981-02-24 Display device Granted JPS57140036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2625981A JPS57140036A (en) 1981-02-24 1981-02-24 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2625981A JPS57140036A (en) 1981-02-24 1981-02-24 Display device

Publications (2)

Publication Number Publication Date
JPS57140036A true JPS57140036A (en) 1982-08-30
JPS632373B2 JPS632373B2 (en) 1988-01-19

Family

ID=12188261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2625981A Granted JPS57140036A (en) 1981-02-24 1981-02-24 Display device

Country Status (1)

Country Link
JP (1) JPS57140036A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702963A (en) * 1981-04-03 1987-10-27 Optical Coating Laboratory, Inc. Flexible polymer film with vapor impermeable coating
US5222252A (en) * 1990-08-30 1993-06-22 Robert Bosch Gmbh Stereo radio receiver multipath disturbance detection circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54173605U (en) * 1978-05-26 1979-12-07
JPS55156416A (en) * 1979-05-25 1980-12-05 Hitachi Denshi Ltd Meter circuit for indicating intensity of received electric field

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54173605U (en) * 1978-05-26 1979-12-07
JPS55156416A (en) * 1979-05-25 1980-12-05 Hitachi Denshi Ltd Meter circuit for indicating intensity of received electric field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702963A (en) * 1981-04-03 1987-10-27 Optical Coating Laboratory, Inc. Flexible polymer film with vapor impermeable coating
US5222252A (en) * 1990-08-30 1993-06-22 Robert Bosch Gmbh Stereo radio receiver multipath disturbance detection circuit

Also Published As

Publication number Publication date
JPS632373B2 (en) 1988-01-19

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