LU62925A1 - - Google Patents
Info
- Publication number
- LU62925A1 LU62925A1 LU62925DA LU62925A1 LU 62925 A1 LU62925 A1 LU 62925A1 LU 62925D A LU62925D A LU 62925DA LU 62925 A1 LU62925 A1 LU 62925A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
- G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
- H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present
- H03G3/341—Muting when no signals or only weak signals are present
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present
- H03G3/344—Muting responsive to the amount of noise (noise squelch)
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Noise Elimination (AREA)
- Manipulation Of Pulses (AREA)
- Dc Digital Transmission (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7014004A FR2088601A5 (https=) | 1970-04-17 | 1970-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU62925A1 true LU62925A1 (https=) | 1972-02-29 |
Family
ID=9054173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU62925D LU62925A1 (https=) | 1970-04-17 | 1971-04-05 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3706045A (https=) |
| JP (1) | JPS5332201B1 (https=) |
| BE (1) | BE765879A (https=) |
| CH (1) | CH530133A (https=) |
| DE (1) | DE2118350C3 (https=) |
| FR (1) | FR2088601A5 (https=) |
| GB (1) | GB1335764A (https=) |
| LU (1) | LU62925A1 (https=) |
| NL (1) | NL155142B (https=) |
| SE (1) | SE376521B (https=) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889108A (en) * | 1974-07-25 | 1975-06-10 | Us Navy | Adaptive low pass filter |
| US3961274A (en) * | 1975-03-10 | 1976-06-01 | The United States Of America As Represented By The Secretary Of The Navy | Noise riding threshold |
| GB1578374A (en) * | 1976-11-08 | 1980-11-05 | Clarion Co Ltd | Noise reduction in audio reproducing systems |
| PL112944B1 (en) * | 1977-12-02 | 1980-11-29 | Device for communication by means of a computer with telemetric channels | |
| DD142974B1 (de) * | 1979-04-27 | 1984-11-07 | Eberhard Lemke | Schaltungsanordnung zur unterdrueckung von stoersignalen |
| JPS56147525A (en) | 1980-04-18 | 1981-11-16 | Hitachi Ltd | Reception playback system |
| FR2505579A1 (fr) * | 1981-05-08 | 1982-11-12 | Agence France Presse | Procede pour la reconstitution par filtrage, d'un signal analogique a partir d'un signal pseudoanalogique obtenu par double conversion analogique/numerique, numerique/analogique dudit signal analogique avec traitement eventuel du signal numerique |
| GB2304241B (en) * | 1983-08-09 | 1997-06-18 | British Aerospace | Electromagnetic interference protection |
-
1970
- 1970-04-17 FR FR7014004A patent/FR2088601A5/fr not_active Expired
-
1971
- 1971-04-05 LU LU62925D patent/LU62925A1/xx unknown
- 1971-04-08 CH CH514571A patent/CH530133A/fr not_active IP Right Cessation
- 1971-04-12 US US132983A patent/US3706045A/en not_active Expired - Lifetime
- 1971-04-13 NL NL717104929A patent/NL155142B/xx unknown
- 1971-04-14 SE SE7104838A patent/SE376521B/xx unknown
- 1971-04-15 DE DE2118350A patent/DE2118350C3/de not_active Expired
- 1971-04-16 JP JP2446371A patent/JPS5332201B1/ja active Pending
- 1971-04-16 BE BE765879A patent/BE765879A/xx unknown
- 1971-04-19 GB GB2664371*A patent/GB1335764A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5332201B1 (https=) | 1978-09-07 |
| CH530133A (fr) | 1972-10-31 |
| DE2118350B2 (de) | 1978-10-05 |
| DE2118350A1 (de) | 1971-10-28 |
| FR2088601A5 (https=) | 1972-01-07 |
| SE376521B (https=) | 1975-05-26 |
| US3706045A (en) | 1972-12-12 |
| DE2118350C3 (de) | 1979-05-10 |
| BE765879A (fr) | 1971-10-18 |
| NL7104929A (https=) | 1971-10-19 |
| GB1335764A (en) | 1973-10-31 |
| NL155142B (nl) | 1977-11-15 |