JPS5450211A - Receiver - Google Patents

Receiver

Info

Publication number
JPS5450211A
JPS5450211A JP11637477A JP11637477A JPS5450211A JP S5450211 A JPS5450211 A JP S5450211A JP 11637477 A JP11637477 A JP 11637477A JP 11637477 A JP11637477 A JP 11637477A JP S5450211 A JPS5450211 A JP S5450211A
Authority
JP
Japan
Prior art keywords
aft
voltage
polarity
counter
aft voltage
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
JP11637477A
Other languages
Japanese (ja)
Other versions
JPS6011851B2 (en
Inventor
Hisao Mogi
Hisao Okada
Koji Morita
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP52116374A priority Critical patent/JPS6011851B2/en
Publication of JPS5450211A publication Critical patent/JPS5450211A/en
Publication of JPS6011851B2 publication Critical patent/JPS6011851B2/en
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
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To prevent the malfunction of AFT by controlling a sweepage operation according to the polarity of the AFT voltage at a channel selection time. CONSTITUTION:Contents of counter 13 are set to a value corresponding to the receiving frequency on a basis of the receiving operation, and this value is D/A- converted by converter 18 to form the channel selection voltage. Then, this voltage is supplied to electronic tuning-type tuner 1, and a specified frequency is received. In this case, the IF signal is subjected to frequency discrimination in 22 to obtain the AFT voltage, and FF44 or 45 is set when the AFT voltage becomes one polarity by the receiving operation. Then, on a basis of this set output, counted input is supplied successively to counter 13 to count in addition or subtraction. Then, FF44 or 45 is reset when the polarity of the AFT voltage is inverted, and the counting in addition or subtraction by counter 13 is inverted, and counting is continued until the AFT voltage is not obtained, thereby preventing the malfunction of AFT.
JP52116374A 1977-09-28 1977-09-28 Receiving machine Expired JPS6011851B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52116374A JPS6011851B2 (en) 1977-09-28 1977-09-28 Receiving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52116374A JPS6011851B2 (en) 1977-09-28 1977-09-28 Receiving machine

Publications (2)

Publication Number Publication Date
JPS5450211A true JPS5450211A (en) 1979-04-20
JPS6011851B2 JPS6011851B2 (en) 1985-03-28

Family

ID=14685392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52116374A Expired JPS6011851B2 (en) 1977-09-28 1977-09-28 Receiving machine

Country Status (1)

Country Link
JP (1) JPS6011851B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749693A (en) * 1980-09-09 1982-03-23 Sumitomo Metal Ind Ltd Production of coke for blast furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749693A (en) * 1980-09-09 1982-03-23 Sumitomo Metal Ind Ltd Production of coke for blast furnace
JPS598386B2 (en) * 1980-09-09 1984-02-24 住友金属工業株式会社 Method for manufacturing coke for blast furnaces

Also Published As

Publication number Publication date
JPS6011851B2 (en) 1985-03-28

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