ZA744233B - Automatic frequency control arrangement - Google Patents
Automatic frequency control arrangementInfo
- Publication number
- ZA744233B ZA744233B ZA00744233A ZA744233A ZA744233B ZA 744233 B ZA744233 B ZA 744233B ZA 00744233 A ZA00744233 A ZA 00744233A ZA 744233 A ZA744233 A ZA 744233A ZA 744233 B ZA744233 B ZA 744233B
- Authority
- ZA
- South Africa
- Prior art keywords
- frequency control
- control arrangement
- automatic frequency
- automatic
- arrangement
- Prior art date
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732333851 DE2333851A1 (de) | 1973-07-03 | 1973-07-03 | Verfahren und anordnungen zur selbsttaetigen nachregelung der mit einer abstimmanordnunggeingestellten oszillatorfrequenz eines ueberlagerungsempfangsteils einer bild und/oder tonwiedergabeanordnung |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA744233B true ZA744233B (en) | 1975-07-30 |
Family
ID=5885824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00744233A ZA744233B (en) | 1973-07-03 | 1974-07-02 | Automatic frequency control arrangement |
Country Status (6)
Country | Link |
---|---|
US (1) | US3922609A (fr) |
DE (1) | DE2333851A1 (fr) |
FR (1) | FR2236317B3 (fr) |
GB (1) | GB1448798A (fr) |
NL (1) | NL7408648A (fr) |
ZA (1) | ZA744233B (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1073074B (it) * | 1975-11-14 | 1985-04-13 | Rca Corp | Sintetizzatore di frequenze televisive,per portanti di frequenza non standardizzata |
US4422096A (en) * | 1975-11-14 | 1983-12-20 | Rca Corporation | Television frequency synthesizer for nonstandard frequency carriers |
GB1526338A (en) * | 1976-05-22 | 1978-09-27 | Eddystone Radio | Superheterodyne receivers |
JPS5563118A (en) * | 1978-11-02 | 1980-05-13 | Sony Corp | Aft circuit |
DE2912710C3 (de) * | 1979-03-30 | 1982-02-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Abstimmschaltung für einen Empfänger, deren Abstimmlage von dem Stand eines Zählers bestimmt wird |
US4291414A (en) * | 1979-05-02 | 1981-09-22 | Nippon Gakki Seizo Kabushiki Kaisha | Radio receiver operable in station search mode or station select mode |
US4348772A (en) * | 1979-11-26 | 1982-09-07 | Bell Telephone Laboratories, Incorporated | Frequency stabilization circuit for a local oscillator |
DE3025358A1 (de) * | 1980-07-04 | 1982-01-21 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Regelsystem zum einstellen einer physikalischen groesse |
US4600924A (en) * | 1984-03-21 | 1986-07-15 | Allied Corporation | Automatic frequency control for radar receiver |
DE3438286A1 (de) * | 1984-10-16 | 1986-04-17 | Hansen/Catito Elektronik, 1000 Berlin | Verfahren und schaltungsanordnung zum umsetzen frequenzmodulierter signale ueber mindestens eine zwischenfrequenz in niederfrequenzsignale |
DE3606250A1 (de) * | 1986-02-24 | 1987-08-27 | Hansen Elektronic & Co | Verfahren und vorrichtung zum umsetzen frequenzmodulierter signale ueber mindestens eine zwischenfrequenz in niederfrequenzsignale |
US4959872A (en) * | 1988-06-23 | 1990-09-25 | Kabushiki Kaisha Toshiba | Automatic frequency control apparatus for FM receivers |
GB9006919D0 (en) * | 1990-03-28 | 1990-05-23 | Panther Giles | Paging receiver |
US5606737A (en) * | 1992-03-09 | 1997-02-25 | Fujitsu Limited | Oscillator mixer and a multiplier mixer for outputting a baseband signal based upon an input and output signal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3185938A (en) * | 1962-02-27 | 1965-05-25 | Louis V Pelosi | Vfo control for generating stable discrete frequencies |
FR1539645A (fr) * | 1967-02-21 | 1968-09-20 | Materiel Telephonique | Procédé et dispositif d'accord automatique sur une fréquence donnée, d'un circuit oscillant à fréquence réglable |
US3488605A (en) * | 1968-05-15 | 1970-01-06 | Slant Fin Corp | Oscillator with digital counter frequency control circuits |
-
1973
- 1973-07-03 DE DE19732333851 patent/DE2333851A1/de not_active Withdrawn
-
1974
- 1974-06-17 US US480069A patent/US3922609A/en not_active Expired - Lifetime
- 1974-06-20 GB GB2738174A patent/GB1448798A/en not_active Expired
- 1974-06-27 NL NL7408648A patent/NL7408648A/xx not_active Application Discontinuation
- 1974-07-02 ZA ZA00744233A patent/ZA744233B/xx unknown
- 1974-07-03 FR FR7423096A patent/FR2236317B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7408648A (nl) | 1975-01-07 |
DE2333851A1 (de) | 1975-01-23 |
FR2236317A1 (fr) | 1975-01-31 |
GB1448798A (en) | 1976-09-08 |
US3922609A (en) | 1975-11-25 |
FR2236317B3 (fr) | 1977-05-06 |
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