FR1381217A - Grid listening system - Google Patents
Grid listening systemInfo
- Publication number
- FR1381217A FR1381217A FR884629A FR884629A FR1381217A FR 1381217 A FR1381217 A FR 1381217A FR 884629 A FR884629 A FR 884629A FR 884629 A FR884629 A FR 884629A FR 1381217 A FR1381217 A FR 1381217A
- Authority
- FR
- France
- Prior art keywords
- grid
- listening system
- listening
- grid listening
- 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
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/805—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/8083—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems determining direction of source
-
- 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
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL287672D NL287672A (en) | 1962-01-12 | ||
FR884629A FR1381217A (en) | 1962-01-12 | 1962-01-12 | Grid listening system |
GB76763A GB1025466A (en) | 1962-01-12 | 1963-01-07 | Improvements in sound source locating systems |
DEC28883A DE1191721B (en) | 1962-01-12 | 1963-01-11 | Sound detection device |
FR914615A FR87151E (en) | 1962-01-12 | 1965-11-07 | Grid listening system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR884629A FR1381217A (en) | 1962-01-12 | 1962-01-12 | Grid listening system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1381217A true FR1381217A (en) | 1964-12-14 |
Family
ID=8770334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR884629A Expired FR1381217A (en) | 1962-01-12 | 1962-01-12 | Grid listening system |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1191721B (en) |
FR (1) | FR1381217A (en) |
GB (1) | GB1025466A (en) |
NL (1) | NL287672A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2050619A5 (en) * | 1969-06-18 | 1971-04-02 | Cit Alcatel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2049666A5 (en) * | 1969-06-16 | 1971-03-26 | Cit Alcatel | |
CA1135826A (en) * | 1978-09-08 | 1982-11-16 | Adrian Van't Hullenaar | Digital time-delay beamformer for sonar systems |
-
0
- NL NL287672D patent/NL287672A/xx unknown
-
1962
- 1962-01-12 FR FR884629A patent/FR1381217A/en not_active Expired
-
1963
- 1963-01-07 GB GB76763A patent/GB1025466A/en not_active Expired
- 1963-01-11 DE DEC28883A patent/DE1191721B/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2050619A5 (en) * | 1969-06-18 | 1971-04-02 | Cit Alcatel |
Also Published As
Publication number | Publication date |
---|---|
NL287672A (en) | |
DE1191721B (en) | 1965-04-22 |
GB1025466A (en) | 1966-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH406911A (en) | Alarm system | |
FR1415045A (en) | TV system | |
FR1381895A (en) | Amplifier system | |
FI35014A (en) | sound system | |
FR1381622A (en) | Antenna system | |
FR1381217A (en) | Grid listening system | |
FR1377858A (en) | Ventilation device | |
FR1356872A (en) | Wireless cable system | |
FR87151E (en) | Grid listening system | |
FR1327501A (en) | vine disbudder | |
FR1316099A (en) | Actuation system | |
FR1473487A (en) | Warning system | |
FR1372040A (en) | Respiratory System Improvements | |
FR1379920A (en) | Advanced ventilation system | |
FR1325752A (en) | Advanced mower system | |
FR1352885A (en) | Ventilation fan | |
FR1332847A (en) | Rotor-Drum Fan | |
FR1335018A (en) | Variable flexibility spring system | |
FR1358785A (en) | Recording system | |
FR1365542A (en) | Instruction system | |
FR1346290A (en) | Slot air diffuser | |
FR1363751A (en) | Deflection coil system | |
BE633145A (en) | Thermostatic system | |
FR1368653A (en) | Wireless cable system | |
FR1364665A (en) | Free-swing inertia system |