JPS5171011A - - Google Patents

Info

Publication number
JPS5171011A
JPS5171011A JP49147047A JP14704774A JPS5171011A JP S5171011 A JPS5171011 A JP S5171011A JP 49147047 A JP49147047 A JP 49147047A JP 14704774 A JP14704774 A JP 14704774A JP S5171011 A JPS5171011 A JP S5171011A
Authority
JP
Japan
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
JP49147047A
Other versions
JPS5345252B2 (ja
Inventor
Nobuaki Sakauchi
Hajime Suzuki
Kazufumi Ushijima
Shigeru Iwamoto
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP14704774A priority Critical patent/JPS5345252B2/ja
Priority to CA232,549A priority patent/CA1025138A/en
Priority to US05/601,283 priority patent/US4008437A/en
Priority to GB32525/75A priority patent/GB1511359A/en
Priority to DE2535305A priority patent/DE2535305C3/de
Priority to IT26383/75A priority patent/IT1042098B/it
Priority to FR7526248A priority patent/FR2310031A1/fr
Publication of JPS5171011A publication Critical patent/JPS5171011A/ja
Publication of JPS5345252B2 publication Critical patent/JPS5345252B2/ja
Expired legal-status Critical Current

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
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
    • H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
JP14704774A 1974-12-17 1974-12-17 Expired JPS5345252B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP14704774A JPS5345252B2 (ja) 1974-12-17 1974-12-17
CA232,549A CA1025138A (en) 1974-12-17 1975-07-30 Automatic tuning apparatus
US05/601,283 US4008437A (en) 1974-12-17 1975-08-04 Automatic tuning apparatus
GB32525/75A GB1511359A (en) 1974-12-17 1975-08-04 Automatic electric tuning apparatus
DE2535305A DE2535305C3 (de) 1974-12-17 1975-08-07 Automatische Abstimmschaltung für Funkempfänger
IT26383/75A IT1042098B (it) 1974-12-17 1975-08-14 Apparecchiatura di sintonizzazione automatica impiegante un dispositi vo a reattanza variabile a tensione controllata
FR7526248A FR2310031A1 (fr) 1974-12-17 1975-08-26 Appareil d'accord automatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14704774A JPS5345252B2 (ja) 1974-12-17 1974-12-17

Publications (2)

Publication Number Publication Date
JPS5171011A true JPS5171011A (ja) 1976-06-19
JPS5345252B2 JPS5345252B2 (ja) 1978-12-05

Family

ID=15421293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14704774A Expired JPS5345252B2 (ja) 1974-12-17 1974-12-17

Country Status (7)

Country Link
US (1) US4008437A (ja)
JP (1) JPS5345252B2 (ja)
CA (1) CA1025138A (ja)
DE (1) DE2535305C3 (ja)
FR (1) FR2310031A1 (ja)
GB (1) GB1511359A (ja)
IT (1) IT1042098B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173815A (ja) * 1974-12-24 1976-06-26 Fujitsu Ten Ltd Jidodochojushinki
JPS5181611U (ja) * 1974-12-24 1976-06-30

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245348A (en) * 1977-05-27 1981-01-13 General Research Of Electronics, Inc. Center frequency tuning system for radio-frequency signal receiver
JPS5456701A (en) * 1977-10-14 1979-05-08 Sanyo Electric Co Ltd Preset receiving device
JPS593891B2 (ja) * 1979-01-17 1984-01-26 ソニー株式会社 受信検出回路
JPS57171822A (en) * 1981-04-15 1982-10-22 Pioneer Electronic Corp Automatic channel selector of tuner
US4862516A (en) * 1987-01-02 1989-08-29 Motorola, Inc. System for automatically tuning the antenna of a miniature portable communications device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2042439A1 (de) * 1970-08-27 1972-03-02 Wachholz W Schaltungsanordnung zur automatischen Sendersuche und automatischen Scharfabstimmung in einem Hochfrequenzempfanger
GB1379759A (en) * 1970-12-07 1975-01-08 Matsushita Electric Ind Co Ltd Electrical tuning system
US3798553A (en) * 1971-02-09 1974-03-19 Matsushita Electric Ind Co Ltd Frequency sweep device having two alternately swept oscillators
US3864636A (en) * 1972-11-09 1975-02-04 Tokyo Shibaura Electric Co Local oscillation device for a television receiver set
CA1019855A (en) * 1973-06-08 1977-10-25 Yasuhiro Yamada Automatic tuning apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173815A (ja) * 1974-12-24 1976-06-26 Fujitsu Ten Ltd Jidodochojushinki
JPS5181611U (ja) * 1974-12-24 1976-06-30
JPS5739570B2 (ja) * 1974-12-24 1982-08-21

Also Published As

Publication number Publication date
JPS5345252B2 (ja) 1978-12-05
FR2310031A1 (fr) 1976-11-26
DE2535305C3 (de) 1980-04-10
FR2310031B1 (ja) 1978-04-07
GB1511359A (en) 1978-05-17
CA1025138A (en) 1978-01-24
DE2535305B2 (de) 1979-08-09
DE2535305A1 (de) 1976-07-15
US4008437A (en) 1977-02-15
IT1042098B (it) 1980-01-30

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