FR2269721A1 - - Google Patents
Info
- Publication number
- FR2269721A1 FR2269721A1 FR7513591A FR7513591A FR2269721A1 FR 2269721 A1 FR2269721 A1 FR 2269721A1 FR 7513591 A FR7513591 A FR 7513591A FR 7513591 A FR7513591 A FR 7513591A FR 2269721 A1 FR2269721 A1 FR 2269721A1
- 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
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/74—Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe
-
- 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
- G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT365474A AT329117B (en) | 1974-05-03 | 1974-05-03 | SECONDARY RADAR METHOD AND DEVICE FOR IMPLEMENTING THE METHOD |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2269721A1 true FR2269721A1 (en) | 1975-11-28 |
FR2269721B1 FR2269721B1 (en) | 1979-03-23 |
Family
ID=3553506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7513591A Expired FR2269721B1 (en) | 1974-05-03 | 1975-04-30 |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT329117B (en) |
DE (1) | DE2519670A1 (en) |
FR (1) | FR2269721B1 (en) |
GB (1) | GB1500448A (en) |
HK (1) | HK56378A (en) |
NL (1) | NL7505033A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2334939A1 (en) * | 1975-12-12 | 1977-07-08 | Vockenhuber Karl | DISTANCE MEASUREMENT METHOD AND APPARATUS INTENDED FOR THIS PURPOSE |
EP0834749A1 (en) * | 1996-10-05 | 1998-04-08 | Oerlikon Contraves AG | Method and apparatus for measuring distance between two stations linked to each other by a communication channel |
US6747802B2 (en) | 2001-05-15 | 2004-06-08 | Thales | Compact optical architecture for wide-field helmet-mounted display |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3209867A1 (en) * | 1982-03-18 | 1983-09-29 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Arrangement for determining the distance of a missile from a ground station |
DE102014111589A1 (en) * | 2014-08-13 | 2016-02-18 | Sick Ag | PROCESS FOR SIMULTANEOUS DATA TRANSMISSION AND SPACING MEASUREMENT |
-
1974
- 1974-05-03 AT AT365474A patent/AT329117B/en not_active IP Right Cessation
-
1975
- 1975-04-28 NL NL7505033A patent/NL7505033A/en not_active Application Discontinuation
- 1975-04-30 FR FR7513591A patent/FR2269721B1/fr not_active Expired
- 1975-05-02 GB GB1859475A patent/GB1500448A/en not_active Expired
- 1975-05-02 DE DE19752519670 patent/DE2519670A1/en active Pending
-
1978
- 1978-09-21 HK HK56378A patent/HK56378A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2334939A1 (en) * | 1975-12-12 | 1977-07-08 | Vockenhuber Karl | DISTANCE MEASUREMENT METHOD AND APPARATUS INTENDED FOR THIS PURPOSE |
EP0834749A1 (en) * | 1996-10-05 | 1998-04-08 | Oerlikon Contraves AG | Method and apparatus for measuring distance between two stations linked to each other by a communication channel |
US6747802B2 (en) | 2001-05-15 | 2004-06-08 | Thales | Compact optical architecture for wide-field helmet-mounted display |
Also Published As
Publication number | Publication date |
---|---|
FR2269721B1 (en) | 1979-03-23 |
HK56378A (en) | 1978-09-29 |
GB1500448A (en) | 1978-02-08 |
DE2519670A1 (en) | 1975-11-13 |
AT329117B (en) | 1976-04-26 |
NL7505033A (en) | 1975-11-05 |
ATA365474A (en) | 1975-07-15 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |