BE520931A - - Google Patents

Info

Publication number: BE520931A
Authority: BE; Belgium

Application number

Priority date (The priority date 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 date listed.)

1952-06-25

Publication of BE520931A publication Critical patent/BE520931A/xx

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
- 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
- G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, 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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S13/913—Radar or analogous systems specially adapted for specific applications for traffic control for landing purposes

Landscapes

Engineering & Computer Science (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Physics & Mathematics (AREA)
Computer Networks & Wireless Communication (AREA)
General Physics & Mathematics (AREA)
Electromagnetism (AREA)
Radar Systems Or Details Thereof (AREA)

BE520931D 1952-06-25 BE520931A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL750327X		1952-06-25

Publications (1)

Publication Number	Publication Date
BE520931A true BE520931A (de)

Family

ID=19823409

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE520931D BE520931A (de)	1952-06-25

Country Status (6)

Country	Link
US (1)	US2831185A (de)
BE (1)	BE520931A (de)
DE (1)	DE947092C (de)
FR (1)	FR1085968A (de)
GB (1)	GB750327A (de)
NL (2)	NL91417C (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE967649C (de) *	1953-08-14	1957-12-05	Telefunken Gmbh	Verfahren zum Hervorheben einzelner Impulsanzeigen im oszillographischen Anzeigebildvon Impulsradargeraeten
US3049705A (en) *	1960-04-01	1962-08-14	Sperry Rand Corp	Position-selective call and identification system
US4764769A (en) *	1983-10-19	1988-08-16	Vega Precision Laboratories, Inc.	Position coded pulse communication system
DE3624143A1 (de) *	1986-07-17	1988-01-21	Standard Elektrik Lorenz Ag	Einrichtung zur freund-feind-identifikation
US5170168A (en) *	1986-07-17	1992-12-08	Standard Elektrik Lorenz Ag	Identification of friend from foe device
US5966226A (en) *	1996-10-11	1999-10-12	Oerlikon-Contraves Ag	Combat communication system
CN115857027B (zh) *	2022-10-20	2024-07-23	深达威科技(广东)股份有限公司	一种管道测堵仪

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2547945A (en) *	1944-01-29	1951-04-10	Sperry Corp	System for conveying traffic data to aircraft
US2528202A (en) *	1945-08-30	1950-10-31	Rca Corp	Radio navigation system
US2513490A (en) *	1947-02-28	1950-07-04	Rca Corp	Selective communication system between ground station and a plurality of mobile stations

0
- NL NLAANVRAGE7711696,A patent/NL170603B/xx unknown
- BE BE520931D patent/BE520931A/xx unknown
- NL NL91417D patent/NL91417C/xx active
1953
- 1953-06-11 US US360890A patent/US2831185A/en not_active Expired - Lifetime
- 1953-06-22 GB GB17220/53A patent/GB750327A/en not_active Expired
- 1953-06-23 DE DEN7363A patent/DE947092C/de not_active Expired
- 1953-06-23 FR FR1085968D patent/FR1085968A/fr not_active Expired

Also Published As

Publication number	Publication date
FR1085968A (fr)	1955-02-08
NL91417C (de)
GB750327A (en)	1956-06-13
US2831185A (en)	1958-04-15
NL170603B (nl)
DE947092C (de)	1956-08-09

Publication	Publication Date	Title
JPS3110652B1 (de)	1952-12-20
BE519488A (de)	1953-10-26
FR999415A (de)	1952-01-30
FR999010A (de)	1952-01-25
FR999428A (de)	1952-01-30
JPS2800735Y1 (de)	1953-08-15
BE518893A (de)
BE524240A (de)	1953-11-30
BE519593A (de)	1953-05-15
BE519332A (de)	1953-10-21
BE519063A (de)
BE518997A (de)
BE522176A (de)
BE518726A (de)	1955-03-18
BE518504A (de)
BE518402A (de)
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BE518287A (de)
BE518282A (de)
BE518235A (de)
BE522019A (de)
BE519631A (de)
BE520379A (de)
BE520612A (de)
BE520931A (de)