AU8642675A - Automatic frequency control - Google Patents
Automatic frequency controlInfo
- Publication number
- AU8642675A AU8642675A AU86426/75A AU8642675A AU8642675A AU 8642675 A AU8642675 A AU 8642675A AU 86426/75 A AU86426/75 A AU 86426/75A AU 8642675 A AU8642675 A AU 8642675A AU 8642675 A AU8642675 A AU 8642675A
- Authority
- AU
- Australia
- Prior art keywords
- frequency control
- automatic frequency
- automatic
- control
- frequency
- 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.)
- Expired
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4819574 | 1974-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU8642675A true AU8642675A (en) | 1977-05-12 |
Family
ID=10447722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU86426/75A Expired AU8642675A (en) | 1974-11-07 | 1975-11-07 | Automatic frequency control |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU8642675A (en) |
| DE (1) | DE2550172A1 (en) |
| FR (1) | FR2290798A1 (en) |
| SE (1) | SE7512400L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580928A (en) * | 1978-12-15 | 1980-06-18 | Sony Corp | Channel selection device |
-
1975
- 1975-11-05 SE SE7512400A patent/SE7512400L/en unknown
- 1975-11-07 FR FR7534043A patent/FR2290798A1/en not_active Withdrawn
- 1975-11-07 AU AU86426/75A patent/AU8642675A/en not_active Expired
- 1975-11-07 DE DE19752550172 patent/DE2550172A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE7512400L (en) | 1976-05-08 |
| DE2550172A1 (en) | 1976-05-20 |
| FR2290798A1 (en) | 1976-06-04 |
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