FR2121674A1 - - Google Patents
Info
- Publication number
- FR2121674A1 FR2121674A1 FR7200485A FR7200485A FR2121674A1 FR 2121674 A1 FR2121674 A1 FR 2121674A1 FR 7200485 A FR7200485 A FR 7200485A FR 7200485 A FR7200485 A FR 7200485A FR 2121674 A1 FR2121674 A1 FR 2121674A1
- 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.)
- Granted
Links
Classifications
-
- 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
- H03C7/025—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices
- H03C7/027—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices using diodes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
- H03C1/60—Modulators in which carrier or one sideband is wholly or partially suppressed with one sideband wholly or partially suppressed
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
- H03D9/06—Transference of modulation using distributed inductance and capacitance
- H03D9/0608—Transference of modulation using distributed inductance and capacitance by means of diodes
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0014/71A GB1279361A (en) | 1971-01-08 | 1971-01-08 | Frequency changing device |
US21698271A | 1971-01-11 | 1971-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2121674A1 true FR2121674A1 (en) | 1972-08-25 |
FR2121674B1 FR2121674B1 (en) | 1976-09-03 |
Family
ID=26236359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7200485A Expired FR2121674B1 (en) | 1971-01-08 | 1972-01-07 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3757222A (en) |
DE (1) | DE2200458A1 (en) |
FR (1) | FR2121674B1 (en) |
GB (1) | GB1279361A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4954791A (en) * | 1989-09-29 | 1990-09-04 | Hewlett-Packard Company | Non-commensurate line length rf modulator |
US5450044A (en) * | 1993-04-14 | 1995-09-12 | Acrodyne Industries, Inc. | Quadrature amplitude modulator including a digital amplitude modulator as a component thereof |
US5469127A (en) * | 1992-08-04 | 1995-11-21 | Acrodyne Industries, Inc. | Amplification apparatus and method including modulator component |
US5376888A (en) * | 1993-06-09 | 1994-12-27 | Hook; William R. | Timing markers in time domain reflectometry systems |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3290624A (en) * | 1964-02-10 | 1966-12-06 | Microwave Ass | Phase shifter in iterative circuits using semiconductors |
GB1119879A (en) * | 1966-08-18 | 1968-07-17 | Ass Elect Ind | Improvements relating to modulators |
US3423699A (en) * | 1967-04-10 | 1969-01-21 | Microwave Ass | Digital electric wave phase shifters |
FR2034879A1 (en) * | 1969-03-13 | 1970-12-18 | Int Standard Electric Corp | |
US3573660A (en) * | 1969-04-24 | 1971-04-06 | Robert V Garver | Broadband, reflection-type single sideband modulators |
-
1971
- 1971-01-08 GB GB0014/71A patent/GB1279361A/en not_active Expired
- 1971-01-11 US US00216982A patent/US3757222A/en not_active Expired - Lifetime
-
1972
- 1972-01-05 DE DE19722200458 patent/DE2200458A1/en active Pending
- 1972-01-07 FR FR7200485A patent/FR2121674B1/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3290624A (en) * | 1964-02-10 | 1966-12-06 | Microwave Ass | Phase shifter in iterative circuits using semiconductors |
GB1119879A (en) * | 1966-08-18 | 1968-07-17 | Ass Elect Ind | Improvements relating to modulators |
US3423699A (en) * | 1967-04-10 | 1969-01-21 | Microwave Ass | Digital electric wave phase shifters |
FR2034879A1 (en) * | 1969-03-13 | 1970-12-18 | Int Standard Electric Corp | |
US3573660A (en) * | 1969-04-24 | 1971-04-06 | Robert V Garver | Broadband, reflection-type single sideband modulators |
Also Published As
Publication number | Publication date |
---|---|
GB1279361A (en) | 1972-06-28 |
DE2200458A1 (en) | 1972-07-20 |
FR2121674B1 (en) | 1976-09-03 |
US3757222A (en) | 1973-09-04 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |