FR957645A - - Google Patents
Info
- Publication number
- FR957645A FR957645A FR957645DA FR957645A FR 957645 A FR957645 A FR 957645A FR 957645D A FR957645D A FR 957645DA FR 957645 A FR957645 A FR 957645A
- 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.)
- 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
- H03J7/042—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
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- 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
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US464380A US2406309A (en) | 1942-11-03 | 1942-11-03 | Frequency stabilization |
| US478705A US2383359A (en) | 1942-11-03 | 1943-03-10 | Frequency modulation receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR957645A true FR957645A (xx) | 1950-02-23 |
Family
ID=27040960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR957645D Expired FR957645A (xx) | 1942-11-03 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2406309A (xx) |
| CH (1) | CH264774A (xx) |
| DE (1) | DE821047C (xx) |
| FR (1) | FR957645A (xx) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2600288A (en) * | 1943-10-14 | 1952-06-10 | Hartford Nat Bank & Trust Co | Frequency stabilizing apparatus |
| US2541066A (en) * | 1943-11-24 | 1951-02-13 | Sperry Corp | Object detecting and warning system and method |
| NL80790C (xx) * | 1944-07-19 | |||
| US2510906A (en) * | 1945-03-24 | 1950-06-06 | Avco Mfg Corp | Frequency modulation receiver |
| US2473853A (en) * | 1946-01-22 | 1949-06-21 | Westinghouse Electric Corp | Frequency control system |
| US2545296A (en) * | 1946-02-20 | 1951-03-13 | Mittelmann Eugene | Constant frequency control for high-frequency heating apparatus |
| US2724778A (en) * | 1946-03-07 | 1955-11-22 | Jasik Henry | Electrical generating device |
| US2526353A (en) * | 1946-11-15 | 1950-10-17 | Rca Corp | Stabilized low-frequency oscillator |
| BE481329A (xx) * | 1946-12-10 | |||
| BE488124A (xx) * | 1948-03-27 | |||
| NL150323B (nl) * | 1948-04-15 | Ideal Kk | Zelfopenende en -sluitende paraplu. | |
| NL75725C (xx) * | 1950-05-22 | |||
| US2831632A (en) * | 1950-11-04 | 1958-04-22 | Westinghouse Electric Corp | Electronic speed controlling apparatus |
| US3078752A (en) * | 1951-12-26 | 1963-02-26 | Rca Corp | Circuit for simulating vibrato effect by amplitude modulation of tone by sawtooth waveform |
| US2774872A (en) * | 1952-12-17 | 1956-12-18 | Bell Telephone Labor Inc | Phase shifting circuit |
| US3084327A (en) * | 1959-05-11 | 1963-04-02 | Bell Telephone Labor Inc | High efficiency frequency modulation system for television and speech signals |
| NL277424A (xx) * | 1961-04-25 | |||
| NL179435C (nl) * | 1977-10-26 | 1986-09-01 | Philips Nv | Ontvanger met een frequentiesynthese-schakeling. |
| PL2736737T3 (pl) * | 2011-07-27 | 2018-04-30 | Galileo Wheel Ltd. | Opona do stosowania w pojazdach naziemnych |
-
0
- FR FR957645D patent/FR957645A/fr not_active Expired
-
1942
- 1942-11-03 US US464380A patent/US2406309A/en not_active Expired - Lifetime
-
1943
- 1943-03-10 US US478705A patent/US2383359A/en not_active Expired - Lifetime
-
1947
- 1947-08-07 CH CH264774D patent/CH264774A/de unknown
-
1948
- 1948-12-24 DE DEP26531D patent/DE821047C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE821047C (de) | 1952-01-07 |
| CH264774A (de) | 1949-10-31 |
| US2383359A (en) | 1945-08-21 |
| US2406309A (en) | 1946-08-20 |