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GB1407094A - Time interval determining apparatus - Google Patents

Time interval determining apparatus

Info

Publication number
GB1407094A
GB1407094A GB642775A GB642775A GB1407094A GB 1407094 A GB1407094 A GB 1407094A GB 642775 A GB642775 A GB 642775A GB 642775 A GB642775 A GB 642775A GB 1407094 A GB1407094 A GB 1407094A
Authority
GB
United Kingdom
Prior art keywords
time interval
determining apparatus
interval determining
transponder
litchstreet
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
Application number
GB642775A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Litchstreet Co
Original Assignee
Litchstreet Co
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 Litchstreet Co filed Critical Litchstreet Co
Priority claimed from GB3954772A external-priority patent/GB1407091A/en
Publication of GB1407094A publication Critical patent/GB1407094A/en
Expired legal-status Critical Current

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

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)

Abstract

1407094 Radio navigation LITCHSTREET CO 24 Aug 1972 [15 Sept 1971] 6427/75 Divided out of 1407091 Heading H4D The disclosure of the Specification is the same as that of Specification 1,407,091, the claims however relate to determining the sum of Y, the distance between the own transponder location and the other transponder, and X the difference in the S.S.R. ranges to the two transponders.
GB642775A 1971-09-15 1972-08-24 Time interval determining apparatus Expired GB1407094A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18057871A 1971-09-15 1971-09-15
GB3954772A GB1407091A (en) 1971-09-15 1972-08-24 Proximity indication with range and bearing measurements

Publications (1)

Publication Number Publication Date
GB1407094A true GB1407094A (en) 1975-09-24

Family

ID=26264148

Family Applications (3)

Application Number Title Priority Date Filing Date
GB289074A Expired GB1407092A (en) 1971-09-15 1972-08-24 Bearing determination using secondary surveillance radar
GB642775A Expired GB1407094A (en) 1971-09-15 1972-08-24 Time interval determining apparatus
GB289174A Expired GB1407093A (en) 1971-09-15 1972-08-24 Bearing measurement using secondary surveillance radar

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB289074A Expired GB1407092A (en) 1971-09-15 1972-08-24 Bearing determination using secondary surveillance radar

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB289174A Expired GB1407093A (en) 1971-09-15 1972-08-24 Bearing measurement using secondary surveillance radar

Country Status (1)

Country Link
GB (3) GB1407092A (en)

Also Published As

Publication number Publication date
GB1407092A (en) 1975-09-24
GB1407093A (en) 1975-09-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee