FR878762A - Procédé de régulation de fréquence - Google Patents
Procédé de régulation de fréquenceInfo
- Publication number
- FR878762A FR878762A FR878762DA FR878762A FR 878762 A FR878762 A FR 878762A FR 878762D A FR878762D A FR 878762DA FR 878762 A FR878762 A FR 878762A
- Authority
- FR
- France
- Prior art keywords
- regulation method
- frequency regulation
- frequency
- regulation
- Prior art date
- 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
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/04—Means in or combined with modulating stage for reducing amplitude modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/28—Angle modulation by means of variable impedance using variable impedance driven mechanically or acoustically
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US319877A US2218524A (en) | 1940-02-20 | 1940-02-20 | Frequency modulation system |
US326898A US2250104A (en) | 1940-02-20 | 1940-03-30 | Frequency regulation |
Publications (1)
Publication Number | Publication Date |
---|---|
FR878762A true FR878762A (fr) | 1943-01-29 |
Family
ID=26982185
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR869048D Expired FR869048A (fr) | 1940-02-20 | 1941-01-02 | Systèmes de transmission à modulation de fréquence |
FR878762D Expired FR878762A (fr) | 1940-02-20 | 1941-01-24 | Procédé de régulation de fréquence |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR869048D Expired FR869048A (fr) | 1940-02-20 | 1941-01-02 | Systèmes de transmission à modulation de fréquence |
Country Status (6)
Country | Link |
---|---|
US (2) | US2218524A (fr) |
BE (1) | BE441132A (fr) |
DE (1) | DE882424C (fr) |
FR (2) | FR869048A (fr) |
GB (1) | GB546677A (fr) |
NL (1) | NL67475C (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425657A (en) * | 1941-04-17 | 1947-08-12 | Rca Corp | Short-wave apparatus |
US2440600A (en) * | 1941-05-14 | 1948-04-27 | Rca Corp | Electric motor control |
US2475779A (en) * | 1941-05-14 | 1949-07-12 | Rca Corp | Wave length modulator and control means |
US2794956A (en) * | 1942-06-30 | 1957-06-04 | Fox Benjamin | Frequency modulation system |
US2966676A (en) * | 1942-06-30 | 1960-12-27 | Bessie E Fox | Electronic apparatus and method for measuring distance |
US2422422A (en) * | 1942-08-31 | 1947-06-17 | Rca Corp | Reactance tube controlled generator |
US2415868A (en) * | 1942-10-28 | 1947-02-18 | Rca Corp | Timing modulation |
US2434259A (en) * | 1943-06-22 | 1948-01-13 | Bell Telephone Labor Inc | Circuit arrangement utilizing a plurality of electron discharge devices |
US2511137A (en) * | 1944-12-16 | 1950-06-13 | Rca Corp | Frequency control |
US2609509A (en) * | 1945-06-13 | 1952-09-02 | Bertram C Hill | Electrical testing apparatus |
US2490448A (en) * | 1945-11-09 | 1949-12-06 | Amalgamated Wireless Australas | Frequency changer |
US2588730A (en) * | 1947-05-02 | 1952-03-11 | Wayne R Johnson | Method and apparatus for frequency response measurement |
US2615129A (en) * | 1947-05-16 | 1952-10-21 | Edwin M Mcmillan | Synchro-cyclotron |
US2659813A (en) * | 1950-02-11 | 1953-11-17 | Bell Telephone Labor Inc | Frequency modulation repeater |
US2688730A (en) * | 1950-10-18 | 1954-09-07 | Smith Meeker Engineering Co | Stable frequency generator system |
US2761065A (en) * | 1953-05-27 | 1956-08-28 | Harris A Robinson | Frequency control system |
US3202918A (en) * | 1962-10-03 | 1965-08-24 | Armand P Lucchesi | Frequency multiplier |
US3789302A (en) * | 1972-03-31 | 1974-01-29 | Microwave Ass Inc | Fm heterodyne transmitter |
US10424278B2 (en) * | 2017-08-02 | 2019-09-24 | Applied Invention, Llc | Bell with subharmonic difference tone |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE399079A (fr) * | 1931-09-17 | |||
NL57985C (fr) * | 1937-07-09 |
-
1940
- 1940-02-20 US US319877A patent/US2218524A/en not_active Expired - Lifetime
- 1940-03-30 US US326898A patent/US2250104A/en not_active Expired - Lifetime
-
1941
- 1941-01-02 FR FR869048D patent/FR869048A/fr not_active Expired
- 1941-01-24 FR FR878762D patent/FR878762A/fr not_active Expired
- 1941-03-18 GB GB3689/41A patent/GB546677A/en not_active Expired
- 1941-03-27 DE DEW719D patent/DE882424C/de not_active Expired
- 1941-04-10 BE BE441132D patent/BE441132A/xx unknown
-
1944
- 1944-02-11 NL NL115248A patent/NL67475C/xx active
Also Published As
Publication number | Publication date |
---|---|
US2250104A (en) | 1941-07-22 |
GB546677A (en) | 1942-07-24 |
BE441132A (fr) | 1941-10-31 |
US2218524A (en) | 1940-10-22 |
FR869048A (fr) | 1942-01-22 |
DE882424C (de) | 1953-07-09 |
NL67475C (fr) | 1951-03-15 |
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