NL151799B - QUESTION-ANSWER SYSTEM FOR DIFFERENT QUESTION CODES. - Google Patents

QUESTION-ANSWER SYSTEM FOR DIFFERENT QUESTION CODES.

Info

Publication number
NL151799B
NL151799B NL7013176A NL7013176A NL151799B NL 151799 B NL151799 B NL 151799B NL 7013176 A NL7013176 A NL 7013176A NL 7013176 A NL7013176 A NL 7013176A NL 151799 B NL151799 B NL 151799B
Authority
NL
Netherlands
Prior art keywords
question
codes
answer system
different
answer
Prior art date
Application number
NL7013176A
Other languages
Dutch (nl)
Other versions
NL7013176A (en
Original Assignee
Siemens Ag
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.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of NL7013176A publication Critical patent/NL7013176A/xx
Publication of NL151799B publication Critical patent/NL151799B/en

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
    • 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
    • G01S13/781—Secondary Surveillance Radar [SSR] in general
    • G01S13/782—Secondary Surveillance Radar [SSR] in general using multimoding or selective addressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
NL7013176A 1969-09-12 1970-09-07 QUESTION-ANSWER SYSTEM FOR DIFFERENT QUESTION CODES. NL151799B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691946247 DE1946247C3 (en) 1969-09-12 1969-09-12 Interrogation-response system for various interrogation codes that works according to the radio re-radiation principle

Publications (2)

Publication Number Publication Date
NL7013176A NL7013176A (en) 1971-11-25
NL151799B true NL151799B (en) 1976-12-15

Family

ID=5745336

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7013176A NL151799B (en) 1969-09-12 1970-09-07 QUESTION-ANSWER SYSTEM FOR DIFFERENT QUESTION CODES.

Country Status (4)

Country Link
DE (1) DE1946247C3 (en)
FR (1) FR2099732A5 (en)
GB (1) GB1254807A (en)
NL (1) NL151799B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365675C1 (en) * 1973-11-09 1988-11-10 Siemens AG, 1000 Berlin und 8000 München Query-response system with a primary radar and with filters in the response station
US4067011A (en) * 1976-10-22 1978-01-03 Motorola, Inc. Digital transponder universal pulse assembly
DE2747388A1 (en) * 1977-10-21 1979-04-26 Siemens Ag Wireless closed loop alarm system - uses digital signals with ROM-controlled code and two transceivers with logic circuitry
DE2826902C3 (en) * 1978-06-20 1980-12-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Arrangement for eliminating fruit interference in a secondary radar system with co-channel operation and interrogation station marking
DE2941820C2 (en) * 1979-10-16 1986-12-11 Siemens AG, 1000 Berlin und 8000 München Facility for friend-foe identification
ZA829121B (en) * 1981-12-18 1983-09-28 Senelco Ltd Transmitter/responder systems
GB2112607B (en) * 1981-12-18 1986-01-02 Senelco Ltd Transmitter/responder systems
GB9410959D0 (en) * 1994-06-01 1994-07-20 Coveley Michael Radio ranging finder

Also Published As

Publication number Publication date
DE1946247A1 (en) 1971-07-29
DE1946247B2 (en) 1973-03-15
GB1254807A (en) 1971-11-24
NL7013176A (en) 1971-11-25
FR2099732A5 (en) 1972-03-17
DE1946247C3 (en) 1973-09-27

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SIEMENS