SE7512400L - Frekvensregulator - Google Patents

Frekvensregulator

Info

Publication number
SE7512400L
SE7512400L SE7512400A SE7512400A SE7512400L SE 7512400 L SE7512400 L SE 7512400L SE 7512400 A SE7512400 A SE 7512400A SE 7512400 A SE7512400 A SE 7512400A SE 7512400 L SE7512400 L SE 7512400L
Authority
SE
Sweden
Prior art keywords
frequency controller
controller
frequency
Prior art date
Application number
SE7512400A
Other languages
English (en)
Inventor
P E Chadwick
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Publication of SE7512400L publication Critical patent/SE7512400L/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
    • H03J7/02—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
SE7512400A 1974-11-07 1975-11-05 Frekvensregulator SE7512400L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4819574 1974-11-07

Publications (1)

Publication Number Publication Date
SE7512400L true SE7512400L (sv) 1976-05-08

Family

ID=10447722

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7512400A SE7512400L (sv) 1974-11-07 1975-11-05 Frekvensregulator

Country Status (4)

Country Link
AU (1) AU8642675A (sv)
DE (1) DE2550172A1 (sv)
FR (1) FR2290798A1 (sv)
SE (1) SE7512400L (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580928A (en) * 1978-12-15 1980-06-18 Sony Corp Channel selection device

Also Published As

Publication number Publication date
FR2290798A1 (fr) 1976-06-04
DE2550172A1 (de) 1976-05-20
AU8642675A (en) 1977-05-12

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