JPS533713A - Receiving frequency correction system - Google Patents

Receiving frequency correction system

Info

Publication number
JPS533713A
JPS533713A JP7831376A JP7831376A JPS533713A JP S533713 A JPS533713 A JP S533713A JP 7831376 A JP7831376 A JP 7831376A JP 7831376 A JP7831376 A JP 7831376A JP S533713 A JPS533713 A JP S533713A
Authority
JP
Japan
Prior art keywords
frequency
correction system
frequency correction
receiving frequency
counted
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
JP7831376A
Other languages
Japanese (ja)
Other versions
JPS573247B2 (en
Inventor
Yasuhide Sakai
Toshiharu Inamoto
Toyohiko Watanabe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7831376A priority Critical patent/JPS533713A/en
Publication of JPS533713A publication Critical patent/JPS533713A/en
Publication of JPS573247B2 publication Critical patent/JPS573247B2/ja
Granted 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
    • H03J7/02—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
    • H03J7/06—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 counters or frequency dividers
    • H03J7/065—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 counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

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

Abstract

PURPOSE:Intermediate frequency output frequencies are counted n time at inter vals of the fixed time, and whether the difference between every counted frequency and the prescribed in termediate frequency is positive or negative is discriminated to count the result, threby correcting automatically a deviation of the turning frequency in a receiving.
JP7831376A 1976-06-30 1976-06-30 Receiving frequency correction system Granted JPS533713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7831376A JPS533713A (en) 1976-06-30 1976-06-30 Receiving frequency correction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7831376A JPS533713A (en) 1976-06-30 1976-06-30 Receiving frequency correction system

Publications (2)

Publication Number Publication Date
JPS533713A true JPS533713A (en) 1978-01-13
JPS573247B2 JPS573247B2 (en) 1982-01-20

Family

ID=13658437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7831376A Granted JPS533713A (en) 1976-06-30 1976-06-30 Receiving frequency correction system

Country Status (1)

Country Link
JP (1) JPS533713A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63131728A (en) * 1986-11-21 1988-06-03 Mitsubishi Electric Corp Double superheterodyne system radio equipment
JPS6489714A (en) * 1987-09-30 1989-04-04 Toshiba Corp Electrical channel selection device
TR25801A (en) * 1990-12-31 1993-09-01 Thomson Consumer Electronics MICRO-PROCESSOR CONTROLLED NUMERICAL AFT UNIT.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63131728A (en) * 1986-11-21 1988-06-03 Mitsubishi Electric Corp Double superheterodyne system radio equipment
JPS6489714A (en) * 1987-09-30 1989-04-04 Toshiba Corp Electrical channel selection device
TR25801A (en) * 1990-12-31 1993-09-01 Thomson Consumer Electronics MICRO-PROCESSOR CONTROLLED NUMERICAL AFT UNIT.
KR100269053B1 (en) * 1990-12-31 2000-10-16 크리트먼 어윈 엠 Digital aft unit

Also Published As

Publication number Publication date
JPS573247B2 (en) 1982-01-20

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