FR994840A - Improvements in ultra-short wave modulation methods and devices - Google Patents
Improvements in ultra-short wave modulation methods and devicesInfo
- Publication number
- FR994840A FR994840A FR994840DA FR994840A FR 994840 A FR994840 A FR 994840A FR 994840D A FR994840D A FR 994840DA FR 994840 A FR994840 A FR 994840A
- Authority
- FR
- France
- Prior art keywords
- ultra
- devices
- short wave
- modulation methods
- wave modulation
- 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
- H03C1/00—Amplitude modulation
- H03C1/28—Amplitude modulation by means of transit-time tube
- H03C1/30—Amplitude modulation by means of transit-time tube by means of a magnetron
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR843431X | 1945-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR994840A true FR994840A (en) | 1951-11-22 |
Family
ID=9311926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR994840D Expired FR994840A (en) | 1945-02-06 | 1945-02-06 | Improvements in ultra-short wave modulation methods and devices |
Country Status (7)
Country | Link |
---|---|
US (1) | US2523209A (en) |
BE (1) | BE462983A (en) |
CH (1) | CH254414A (en) |
DE (1) | DE843431C (en) |
FR (1) | FR994840A (en) |
GB (1) | GB611931A (en) |
NL (1) | NL69798C (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2106770A (en) * | 1938-02-01 | Apparatus and method fob receiving | ||
US2121737A (en) * | 1933-07-24 | 1938-06-21 | Rca Corp | Variable reactance modulator circuit |
US2196392A (en) * | 1934-11-28 | 1940-04-09 | Rca Corp | Ultra high frequency oscillator system |
CH204390A (en) * | 1936-12-23 | 1939-04-30 | Lorenz C Ag | Arrangement for modulating ultra-short waves. |
NL58874C (en) * | 1938-01-29 | |||
GB522976A (en) * | 1938-12-22 | 1940-07-02 | Joseph Lade Pawsey | Improvements in or relating to modulation systems for modulating generators of high frequency electrical oscillations |
US2393414A (en) * | 1942-09-25 | 1946-01-22 | Rca Corp | Modulation system for ultra high frequency waves |
-
0
- NL NL69798D patent/NL69798C/xx active
- BE BE462983D patent/BE462983A/xx unknown
-
1945
- 1945-02-06 FR FR994840D patent/FR994840A/en not_active Expired
-
1946
- 1946-01-30 CH CH254414D patent/CH254414A/en unknown
- 1946-03-12 GB GB7746/46A patent/GB611931A/en not_active Expired
- 1946-07-19 US US684819A patent/US2523209A/en not_active Expired - Lifetime
-
1950
- 1950-10-01 DE DEC2962A patent/DE843431C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH254414A (en) | 1948-04-30 |
US2523209A (en) | 1950-09-19 |
DE843431C (en) | 1952-07-07 |
NL69798C (en) | |
BE462983A (en) | |
GB611931A (en) | 1948-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR933841A (en) | Electromagnetic wave transmission device | |
FR933208A (en) | Improvements to vibratory devices | |
FR941322A (en) | Electric wave transmission device | |
FR934357A (en) | Improvements to cooking processes and apparatus | |
ES176256A1 (en) | IMPROVEMENTS IN MODULATORS | |
FR925049A (en) | Electronic sphygmometer and oscillometer | |
FR994840A (en) | Improvements in ultra-short wave modulation methods and devices | |
FR932782A (en) | Improvements to evaporators and similar devices | |
FR939083A (en) | Telegraph and similar apparatus | |
FR995381A (en) | Improvements in radio electric obstacle detection methods and devices | |
FR57990E (en) | Improvements in ultra-short wave modulation methods and devices | |
FR944473A (en) | Improvement in methods and apparatus for modulating ultra-short waves | |
FR936723A (en) | Improvements in telegraphic transmission methods and apparatus | |
FR934385A (en) | Improvements to indicating and recording devices | |
FR912443A (en) | Improvements to duplicators and similar devices | |
FR952438A (en) | Improvements made to mixing and foaming devices | |
FR918656A (en) | Dredging and cleaning device | |
FR918295A (en) | Improvements to switches and similar devices | |
FR923328A (en) | Improvements to dehydration processes and apparatus | |
FR905457A (en) | Improvement in amplitude modulation devices | |
FR946689A (en) | Very short and ultra-short wave modulation systems | |
FR938878A (en) | Improvements in glassworking methods and equipment | |
FR932373A (en) | Improvements to grinders and mixers | |
FR921190A (en) | Grouped speaker device | |
FR939433A (en) | Electro-acoustic devices |