NL49750C - - Google Patents
Info
- Publication number
- NL49750C NL49750C NL49750DA NL49750C NL 49750 C NL49750 C NL 49750C NL 49750D A NL49750D A NL 49750DA NL 49750 C NL49750 C NL 49750C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
- H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
- H03D3/004—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling an oscillator, e.g. the local oscillator
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmitters (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70929A US2075503A (en) | 1936-03-26 | 1936-03-26 | Reception of frequency modulated waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL49750C true NL49750C (en:Method) |
Family
ID=22098207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49750D NL49750C (en:Method) | 1936-03-26 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2075503A (en:Method) |
| FR (1) | FR822127A (en:Method) |
| GB (1) | GB489636A (en:Method) |
| NL (1) | NL49750C (en:Method) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE914866C (de) * | 1940-08-01 | 1954-07-12 | Lorenz C Ag | Transponierungsempfaenger mit Frequenzgegenkupplung |
| US2684439A (en) * | 1949-12-19 | 1954-07-20 | Padevco Inc | Frequency modulation receiver system for overlapping waves |
| DE1081938B (de) * | 1955-10-29 | 1960-05-19 | Int Standard Electric Corp | Funkempfaenger zur Aufnahme von Traegerfrequenz- und Seitenbandkomponenten nach dem Korrelationsprinzip |
| DE1071160B (en:Method) * | 1957-08-12 | |||
| DE1122110B (de) * | 1958-03-20 | 1962-01-18 | Nippon Electric Co | Empfangssystem fuer frequenz- oder phasenmodulierte Schwingungen |
| US3053981A (en) * | 1959-07-06 | 1962-09-11 | Security First Nat Bank | High-gain frequency modulation tuner |
| NL277424A (en:Method) * | 1961-04-25 | |||
| US4293818A (en) * | 1979-01-22 | 1981-10-06 | International Telephone And Telegraph Corporation | Frequency modulation threshold extension demodulator utilizing frequency compression feedback with frequency drift correction |
| US4991226A (en) * | 1989-06-13 | 1991-02-05 | Bongiorno James W | FM detector with deviation manipulation |
| US5691666A (en) * | 1995-06-07 | 1997-11-25 | Owen; Joseph C. | Full threshold FM deviation compression feedback demodulator and method |
-
0
- NL NL49750D patent/NL49750C/xx active
-
1936
- 1936-03-26 US US70929A patent/US2075503A/en not_active Expired - Lifetime
-
1937
- 1937-01-29 GB GB2728/37A patent/GB489636A/en not_active Expired
- 1937-03-25 FR FR822127D patent/FR822127A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB489636A (en) | 1938-07-29 |
| FR822127A (fr) | 1937-12-21 |
| US2075503A (en) | 1937-03-30 |