NL165013C - Spanningsgeheugeninrichting en automatische afsteminrichting voorzien van een diode met variabele capaciteit in een resonantieketen. - Google Patents
Spanningsgeheugeninrichting en automatische afsteminrichting voorzien van een diode met variabele capaciteit in een resonantieketen.Info
- Publication number
- NL165013C NL165013C NL7201980.A NL7201980A NL165013C NL 165013 C NL165013 C NL 165013C NL 7201980 A NL7201980 A NL 7201980A NL 165013 C NL165013 C NL 165013C
- Authority
- NL
- Netherlands
- Prior art keywords
- variable capacity
- automatic tuning
- memory device
- voltage memory
- capacity diode
- 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
- H03J7/18—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
- H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
- H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP827771A JPS5316248B1 (enExample) | 1971-02-19 | 1971-02-19 | |
| JP827571A JPS559848B1 (enExample) | 1971-02-19 | 1971-02-19 | |
| JP827971A JPS5316249B1 (enExample) | 1971-02-19 | 1971-02-19 | |
| JP827671A JPS5316247B1 (enExample) | 1971-02-19 | 1971-02-19 | |
| JP827871 | 1971-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL7201980A NL7201980A (enExample) | 1972-08-22 |
| NL165013C true NL165013C (nl) | 1981-02-16 |
Family
ID=27518921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7201980.A NL165013C (nl) | 1971-02-19 | 1972-02-15 | Spanningsgeheugeninrichting en automatische afsteminrichting voorzien van een diode met variabele capaciteit in een resonantieketen. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3760193A (enExample) |
| CA (1) | CA963964A (enExample) |
| DE (1) | DE2207742C3 (enExample) |
| FR (1) | FR2126031A5 (enExample) |
| GB (1) | GB1353881A (enExample) |
| NL (1) | NL165013C (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7402624A (nl) * | 1974-02-27 | 1975-08-29 | Philips Nv | Ontvangerafstemschakeling. |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240144A (en) * | 1967-07-11 | 1971-07-21 | Matsushita Electric Industrial Co Ltd | Automatic tuning type receivers |
| US3611152A (en) * | 1967-07-25 | 1971-10-05 | Matsushita Electric Industrial Co Ltd | Stabilized automatic tuning receiver |
| US3575661A (en) * | 1968-11-05 | 1971-04-20 | Motorola Inc | Remote control tuning circuit |
| US3584141A (en) * | 1968-12-16 | 1971-06-08 | Matsushita Electric Industrial Co Ltd | Automatic tuning device for television receiver |
| US3657654A (en) * | 1969-09-11 | 1972-04-18 | Gen Instrument Corp | Communications receiver employing varactor controlled tuning stages |
| US3631349A (en) * | 1970-03-09 | 1971-12-28 | Sylvania Electric Prod | Automatic signal-seeking circuitry |
| US3644853A (en) * | 1970-11-23 | 1972-02-22 | Zenith Radio Corp | Voltage-controlled signal-seeking tuning system |
| US3697885A (en) * | 1970-12-04 | 1972-10-10 | Rca Corp | Automatic frequency control circuits |
| US3699455A (en) * | 1971-01-20 | 1972-10-17 | Gte Sylvania Inc | Automatic frequency control circuitry for a varactor tuner system |
-
1972
- 1972-02-15 NL NL7201980.A patent/NL165013C/xx not_active IP Right Cessation
- 1972-02-16 CA CA134,828A patent/CA963964A/en not_active Expired
- 1972-02-17 GB GB747672A patent/GB1353881A/en not_active Expired
- 1972-02-18 DE DE2207742A patent/DE2207742C3/de not_active Expired
- 1972-02-18 FR FR7205602A patent/FR2126031A5/fr not_active Expired
- 1972-02-22 US US00227753A patent/US3760193A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2207742A1 (de) | 1972-08-24 |
| FR2126031A5 (enExample) | 1972-09-29 |
| DE2207742C3 (de) | 1980-07-03 |
| DE2207742B2 (de) | 1979-10-25 |
| GB1353881A (en) | 1974-05-22 |
| CA963964A (en) | 1975-03-04 |
| NL7201980A (enExample) | 1972-08-22 |
| US3760193A (en) | 1973-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| V4 | Discontinued because of reaching the maximum lifetime of a patent |