FR1177270A - Appareil de modulation - Google Patents
Appareil de modulationInfo
- Publication number
- FR1177270A FR1177270A FR1177270DA FR1177270A FR 1177270 A FR1177270 A FR 1177270A FR 1177270D A FR1177270D A FR 1177270DA FR 1177270 A FR1177270 A FR 1177270A
- Authority
- FR
- France
- Prior art keywords
- modulation device
- 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
- H03C1/08—Amplitude modulation by means of variable impedance element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C7/00—Modulating electromagnetic waves
- H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Amplitude Modulation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US521122A US2877424A (en) | 1955-07-11 | 1955-07-11 | Method of connecting two cascaded modulators to provide a variable percentage of modulations |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1177270A true FR1177270A (fr) | 1959-04-22 |
Family
ID=24075455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1177270D Expired FR1177270A (fr) | 1955-07-11 | 1957-06-13 | Appareil de modulation |
Country Status (5)
Country | Link |
---|---|
US (1) | US2877424A (fr) |
BE (1) | BE558429A (fr) |
CH (1) | CH351645A (fr) |
FR (1) | FR1177270A (fr) |
GB (1) | GB803682A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422356A (en) * | 1965-06-03 | 1969-01-14 | Collins Radio Co | Feedback compressor circuit to control maximum percentage modulation |
US3743971A (en) * | 1971-09-03 | 1973-07-03 | Collins Radio Co | Vor am modulator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1744836A (en) * | 1925-12-31 | 1930-01-28 | American Telephone & Telegraph | Carrier-amplitude control in radio systems |
US2020409A (en) * | 1933-08-15 | 1935-11-12 | American Telephone & Telegraph | Band separation system |
US2362898A (en) * | 1942-03-18 | 1944-11-14 | Bell Telephone Labor Inc | Signal transmission system |
BE460090A (fr) * | 1944-01-04 | |||
US2498677A (en) * | 1945-06-19 | 1950-02-28 | Standard Telephones Cables Ltd | Communication of intelligence |
-
1955
- 1955-07-11 US US521122A patent/US2877424A/en not_active Expired - Lifetime
-
1956
- 1956-05-15 GB GB15135/56A patent/GB803682A/en not_active Expired
-
1957
- 1957-06-06 CH CH351645D patent/CH351645A/de unknown
- 1957-06-13 FR FR1177270D patent/FR1177270A/fr not_active Expired
- 1957-06-15 BE BE558429D patent/BE558429A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CH351645A (de) | 1961-01-31 |
US2877424A (en) | 1959-03-10 |
BE558429A (fr) | 1957-06-29 |
GB803682A (en) | 1958-10-29 |
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