NO141236C - System for identifisering av en gruppe av radiofrekvenspulser i et radiofrekvenssignal - Google Patents

System for identifisering av en gruppe av radiofrekvenspulser i et radiofrekvenssignal

Info

Publication number
NO141236C
NO141236C NO3563/71A NO356371A NO141236C NO 141236 C NO141236 C NO 141236C NO 3563/71 A NO3563/71 A NO 3563/71A NO 356371 A NO356371 A NO 356371A NO 141236 C NO141236 C NO 141236C
Authority
NO
Norway
Prior art keywords
radio frequency
identifying
group
frequency signal
pulses
Prior art date
Application number
NO3563/71A
Other languages
English (en)
Other versions
NO141236B (no
Inventor
Brian Thomas Holyman
Original Assignee
Decca Ltd
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 Decca Ltd filed Critical Decca Ltd
Publication of NO141236B publication Critical patent/NO141236B/no
Publication of NO141236C publication Critical patent/NO141236C/no

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
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
    • G01S1/245—Details of receivers cooperating therewith, e.g. determining positive zero crossing of third cycle in LORAN-C

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Burglar Alarm Systems (AREA)
NO3563/71A 1970-09-28 1971-09-27 System for identifisering av en gruppe av radiofrekvenspulser i et radiofrekvenssignal NO141236C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4611570 1970-09-28

Publications (2)

Publication Number Publication Date
NO141236B NO141236B (no) 1979-10-22
NO141236C true NO141236C (no) 1980-01-30

Family

ID=10439897

Family Applications (1)

Application Number Title Priority Date Filing Date
NO3563/71A NO141236C (no) 1970-09-28 1971-09-27 System for identifisering av en gruppe av radiofrekvenspulser i et radiofrekvenssignal

Country Status (8)

Country Link
US (1) US3731207A (no)
JP (1) JPS5112515B1 (no)
DE (1) DE2148187C3 (no)
ES (1) ES395460A1 (no)
FR (1) FR2108021B1 (no)
GB (1) GB1315698A (no)
NO (1) NO141236C (no)
SE (1) SE365918B (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31962E (en) * 1977-10-17 1985-07-30 Sanders Associates, Inc. LORAN-C navigation apparatus
CA1124820A (en) * 1977-10-17 1982-06-01 Lester R. Brodeur Loran-c navigation apparatus
US7422139B2 (en) 2006-01-31 2008-09-09 Ethicon Endo-Surgery, Inc. Motor-driven surgical cutting fastening instrument with tactile position feedback

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257200B (de) * 1965-11-10 1967-12-28 Standard Elektrik Lorenz Ag Anordnung zum Erkennen einer Folge von n gleichen Zeichen, insbesondere in einer PCM-Impulsfolge
US3483474A (en) * 1966-09-19 1969-12-09 Us Navy Digitalized receiver system
US3550017A (en) * 1968-09-30 1970-12-22 Sylvania Electric Prod Phase locked pulse train extractor system

Also Published As

Publication number Publication date
DE2148187A1 (de) 1972-04-13
JPS5112515B1 (no) 1976-04-20
NO141236B (no) 1979-10-22
DE2148187B2 (no) 1974-04-25
FR2108021B1 (no) 1974-09-27
DE2148187C3 (de) 1974-11-21
ES395460A1 (es) 1973-12-01
US3731207A (en) 1973-05-01
GB1315698A (en) 1973-05-02
SE365918B (no) 1974-04-01
FR2108021A1 (no) 1972-05-12

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