FR2201580B1 - - Google Patents
Info
- Publication number
- FR2201580B1 FR2201580B1 FR7234991A FR7234991A FR2201580B1 FR 2201580 B1 FR2201580 B1 FR 2201580B1 FR 7234991 A FR7234991 A FR 7234991A FR 7234991 A FR7234991 A FR 7234991A FR 2201580 B1 FR2201580 B1 FR 2201580B1
- 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
- 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
- H03B9/00—Generation of oscillations using transit-time effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/767—Responders; Transponders
-
- 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
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7234991A FR2201580B1 (cs) | 1972-10-03 | 1972-10-03 | |
GB4583873A GB1419448A (en) | 1972-10-03 | 1973-10-01 | Frequency memory device |
DE19732349768 DE2349768A1 (de) | 1972-10-03 | 1973-10-03 | Selbstschwingende hochfrequenzanordnung mit automatischer einstellung auf eine veraenderliche aeussere erregungsfrequenz |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7234991A FR2201580B1 (cs) | 1972-10-03 | 1972-10-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2201580A1 FR2201580A1 (cs) | 1974-04-26 |
FR2201580B1 true FR2201580B1 (cs) | 1976-08-20 |
Family
ID=9105123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7234991A Expired FR2201580B1 (cs) | 1972-10-03 | 1972-10-03 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2349768A1 (cs) |
FR (1) | FR2201580B1 (cs) |
GB (1) | GB1419448A (cs) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3218561A (en) * | 1962-05-02 | 1965-11-16 | Sanders Associates Inc | Frequency storage circuit and method |
US3537077A (en) * | 1967-06-13 | 1970-10-27 | Scope Inc | Recirculating frequency memory system |
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1972
- 1972-10-03 FR FR7234991A patent/FR2201580B1/fr not_active Expired
-
1973
- 1973-10-01 GB GB4583873A patent/GB1419448A/en not_active Expired
- 1973-10-03 DE DE19732349768 patent/DE2349768A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2349768A1 (de) | 1974-04-25 |
FR2201580A1 (cs) | 1974-04-26 |
GB1419448A (en) | 1975-12-31 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |