NL74179C - - Google Patents

Info

Publication number
NL74179C
NL74179C NL74179DA NL74179C NL 74179 C NL74179 C NL 74179C NL 74179D A NL74179D A NL 74179DA NL 74179 C NL74179 C NL 74179C
Authority
NL
Netherlands
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.)
Publication of NL74179C publication Critical patent/NL74179C/xx
Priority claimed from GB77541A external-priority patent/GB594634A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
NL74179D 1941-01-20 NL74179C (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB77541A GB594634A (en) 1941-01-20 Improvements in or relating to electrical apparatus for detecting the presence of moving objects

Publications (1)

Publication Number Publication Date
NL74179C true NL74179C (cs)

Family

ID=9710309

Family Applications (1)

Application Number Title Priority Date Filing Date
NL74179D NL74179C (cs) 1941-01-20

Country Status (6)

Country Link
US (1) US2591919A (cs)
AU (1) AU131340B2 (cs)
CA (1) CA496981A (cs)
CH (1) CH264014A (cs)
FR (1) FR955986A (cs)
NL (1) NL74179C (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1046074A (fr) * 1951-12-01 1953-12-03 Csf Dispositif de détection électromagnétique d'obstacles
NL196467A (cs) * 1954-04-16
US2841740A (en) * 1955-11-21 1958-07-01 Ibm Convertible storage systems
DE1148163B (de) * 1959-09-24 1963-05-02 Atlas Werke Ag Verfahren zur Unterscheidung zwischen ruhenden und bewegten Objekten bei der Echolotung
US3885240A (en) * 1967-06-27 1975-05-20 Us Navy Storage radar system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1750668A (en) * 1927-12-08 1930-03-18 American Telephone & Telegraph Determining movement and position of moving objects
BE421006A (cs) * 1936-04-09
US2193361A (en) * 1936-04-09 1940-03-12 Gen Electric High frequency apparatus
US2189549A (en) * 1938-03-18 1940-02-06 Rca Corp Antenna switching system
US2403625A (en) * 1940-08-16 1946-07-09 Rca Corp Drift indicator

Also Published As

Publication number Publication date
CH264014A (de) 1949-09-30
CA496981A (en) 1953-10-20
AU131340B2 (en) 1949-02-11
US2591919A (en) 1952-04-08
FR955986A (cs) 1950-01-23

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