SE418439B - Mellanfrekvensdetekteringskrets - Google Patents

Mellanfrekvensdetekteringskrets

Info

Publication number
SE418439B
SE418439B SE8003557A SE8003557A SE418439B SE 418439 B SE418439 B SE 418439B SE 8003557 A SE8003557 A SE 8003557A SE 8003557 A SE8003557 A SE 8003557A SE 418439 B SE418439 B SE 418439B
Authority
SE
Sweden
Prior art keywords
circuit
output signal
voltage
intermediate frequency
level
Prior art date
Application number
SE8003557A
Other languages
English (en)
Swedish (sv)
Other versions
SE8003557L (sv
Inventor
K Takayama
Original Assignee
Fujitsu Ten 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 Fujitsu Ten Ltd filed Critical Fujitsu Ten Ltd
Publication of SE8003557L publication Critical patent/SE8003557L/
Publication of SE418439B publication Critical patent/SE418439B/sv

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transmitters (AREA)
SE8003557A 1978-04-17 1980-05-12 Mellanfrekvensdetekteringskrets SE418439B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53045149A JPS5854682B2 (ja) 1978-04-17 1978-04-17 中間周波検出回路

Publications (2)

Publication Number Publication Date
SE8003557L SE8003557L (sv) 1980-05-12
SE418439B true SE418439B (sv) 1981-05-25

Family

ID=12711215

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8003557A SE418439B (sv) 1978-04-17 1980-05-12 Mellanfrekvensdetekteringskrets

Country Status (10)

Country Link
US (1) US4403349A (xx)
EP (1) EP0019630B1 (xx)
JP (1) JPS5854682B2 (xx)
CA (1) CA1142596A (xx)
CH (1) CH647630A5 (xx)
DE (1) DE2947101C2 (xx)
GB (1) GB2046542B (xx)
NL (1) NL185124C (xx)
SE (1) SE418439B (xx)
WO (1) WO1979000937A1 (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3462772B2 (ja) * 1998-11-30 2003-11-05 三洋電機株式会社 ラジオ受信機
US10693570B2 (en) 2018-08-20 2020-06-23 Rohde & Schwarz Gmbh & Co. Kg Device and method of analyzing a radio frequency signal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652486A (en) * 1949-07-22 1953-09-15 Gen Motors Corp Signal seeking tuner
NL154969B (nl) * 1949-07-22 Bibia Rubber Exploitatiemaatsc Bagagebinder voor een rijwiel of dergelijk voertuig.
US2764675A (en) * 1950-01-28 1956-09-25 Gen Motors Corp Signal actuated tuner selective over noise level
US2843734A (en) * 1956-02-29 1958-07-15 Bendix Aviat Corp Signal seeking radio receiver
US3569840A (en) * 1968-10-04 1971-03-09 Collins Radio Co Of Canada Ltd Carrier squelch scheme
JPS5119286A (ja) * 1974-08-07 1976-02-16 Victor Company Of Japan Jidoseigyohoshiki
US3947771A (en) * 1975-02-21 1976-03-30 General Motors Corporation Keyed classical AGC system
DE2522382A1 (de) * 1975-05-21 1976-12-02 Blaupunkt Werke Gmbh Schaltungsanordnung zum unterdruecken von stoerungen in einem rundfunkempfaenger
JPS5317212A (en) * 1976-07-31 1978-02-17 Torio Kk Device for eliminating intermodulation disturbance of superheterodyne receiver
DE2755221C2 (de) * 1977-12-10 1985-05-30 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur selbsttätigen Überwachung der HF-Empfindlichkeit und des NF-Ausgangspegels eines Funkempfängers und Schaltungsanordnung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
EP0019630A1 (en) 1980-12-10
WO1979000937A1 (en) 1979-11-15
JPS5854682B2 (ja) 1983-12-06
NL185124B (nl) 1989-08-16
NL7902692A (nl) 1979-10-19
SE8003557L (sv) 1980-05-12
GB2046542A (en) 1980-11-12
NL185124C (nl) 1990-01-16
DE2947101C2 (de) 1986-06-12
GB2046542B (en) 1982-10-20
CH647630A5 (de) 1985-01-31
DE2947101T1 (xx) 1980-11-27
CA1142596A (en) 1983-03-08
EP0019630B1 (en) 1983-05-11
JPS54137214A (en) 1979-10-24
EP0019630A4 (en) 1980-10-09
US4403349A (en) 1983-09-06

Similar Documents

Publication Publication Date Title
US5434537A (en) Circuit for measuring the output power from an amplifier
CA1051567A (en) Tuning system for am/fm receivers
US4249261A (en) Superheterodyne radio receiver with nearby-station interference detection
US4580285A (en) Scanning AM radio with discriminator-driven-scan-stop-circuit
US4320530A (en) Channel selecting apparatus employing frequency synthesizer
US4637066A (en) Noise blanking signal generator for AM radio
SE418439B (sv) Mellanfrekvensdetekteringskrets
JPS6111025B2 (xx)
US3940714A (en) AFC circuit with improved sensitivity
US4633518A (en) AGC voltage generator with automatic rate switching
US4206412A (en) Trap circuit for blocking spurious signals from a T.V. intermediate frequency amplifier
US6021322A (en) AM radio receiver
US3130372A (en) Ratio detector with zener diode voltage regulator
KR100522462B1 (ko) 반송신호 선택수신장치
KR900002147Y1 (ko) Tv 수상기용 자동 미동조 장치
US4637070A (en) UHF mixing circuit having π configured impedance converter
KR0154598B1 (ko) 튜너의 강입력보강회로
EP0788226B1 (de) Schaltungsanordnung eines Rundfunkempfängers
JP3091980B2 (ja) Ｆｍラジオ受信機
US4547805A (en) Television AFC system usable with offset carrier frequencies
KR930004658Y1 (ko) 영상주파수 방해 개선회로
US4530005A (en) AFC circuit for television tuner
KR900002077Y1 (ko) 라디오 수신기의 트래킹 오차 보상 장치
JP2519320Y2 (ja) チューナのａｇｃ回路
KR900010618Y1 (ko) 전자동조식 튜너의 국부발진출력 안정화회로

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8003557-9

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8003557-9

Format of ref document f/p: F