FR882609A - - Google Patents
Info
- Publication number
- FR882609A FR882609A FR882609DA FR882609A FR 882609 A FR882609 A FR 882609A FR 882609D A FR882609D A FR 882609DA FR 882609 A FR882609 A FR 882609A
- Authority
- FR
- France
- 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.)
- Active
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
- H03J7/22—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
-
- 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
- H03J7/042—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 with reactance tube
-
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US321379A US2300081A (en) | 1940-02-29 | 1940-02-29 | Method and apparatus for radio receiving |
| US321378A US2283523A (en) | 1940-02-29 | 1940-02-29 | Scanning radio receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR882609A true FR882609A (xx) |
Family
ID=26982936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR882609D Active FR882609A (xx) | 1940-02-29 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2300081A (xx) |
| FR (1) | FR882609A (xx) |
| NL (1) | NL65298C (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2467564A (en) * | 1944-10-13 | 1949-04-19 | Hazeltine Research Inc | Wave-signal receiver, including a disabling arrangement |
| US2533662A (en) * | 1947-04-11 | 1950-12-12 | Automatic Elect Lab | Automatic trunk selecting system for radio telephone stations |
| US2523315A (en) * | 1947-06-06 | 1950-09-26 | Farnsworth Res Corp | Selective calling system |
| DE1074674B (de) * | 1954-04-21 | 1960-02-04 | General Motors Corporation, Detroit, Mich. (V. St. A.) | Signalgesteuerte Abstimmeinrichtung für Rundfunkempfänger |
| US4190838A (en) * | 1978-07-20 | 1980-02-26 | R A Electronics, Inc. | Radiation detector |
| JPH04331513A (ja) * | 1991-05-07 | 1992-11-19 | Matsushita Electric Ind Co Ltd | 選択呼出受信装置 |
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0
- NL NL65298D patent/NL65298C/xx active
- FR FR882609D patent/FR882609A/fr active Active
-
1940
- 1940-02-29 US US321379A patent/US2300081A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL65298C (xx) | |
| US2300081A (en) | 1942-10-27 |