GB1084729A – Radio locating systems
– Google Patents
GB1084729A – Radio locating systems
– Google Patents
Radio locating systems
Info
Publication number
GB1084729A
GB1084729A
GB48884/64A
GB4888464A
GB1084729A
GB 1084729 A
GB1084729 A
GB 1084729A
GB 48884/64 A
GB48884/64 A
GB 48884/64A
GB 4888464 A
GB4888464 A
GB 4888464A
GB 1084729 A
GB1084729 A
GB 1084729A
Authority
GB
United Kingdom
Prior art keywords
frequency
station
radio
radiates
energized
Prior art date
1963-12-13
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
GB48884/64A
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.)
CGG SA
Original Assignee
Compagnie Generale de Geophysique SA
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.)
1963-12-13
Filing date
1964-12-01
Publication date
1967-09-27
1964-12-01
Application filed by Compagnie Generale de Geophysique SA
filed
Critical
Compagnie Generale de Geophysique SA
1967-09-27
Publication of GB1084729A
publication
Critical
patent/GB1084729A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G01S1/022—Means for monitoring or calibrating
G01S1/024—Means for monitoring or calibrating of beacon transmitters
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
G01S1/022—Means for monitoring or calibrating
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
G01S1/30—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 continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
G01S1/304—Analogous systems in which a beat frequency, obtained by heterodyning the signals, is compared in phase with a reference signal obtained by heterodyning the signals in a fixed reference point and transmitted therefrom, e.g. LORAC (long range accuracy) or TORAN systems
Abstract
1,084,729. Alarm arrangements; radio signalling. COMPAGNIE GNRALE DE GOPHYSIQUE. Dec. 1, 1964 [Dec. 13, 1963], No. 48884/64. Headings H3W and H4L. A system comprises one or more radio transmitters each energized from an emergency supply in the event of failure of a main supply, the radiation being repetitively interrupted briefly when a transmitter is, or is about to be, energized from the emergency supply. The invention is applied to a known radio-navigation system in which a station A radiates on a frequency F 1 , a station B radiates on a frequency F 2 differing by a low frequency f from frequency F 1 , and a station N receives the radiations from A and B to produce the frequency f which modulates a radiation on a frequency F 3 , a mobile receiver measuring the phase difference on frequency f. The rates of interruption for stations A and B are different. Schematic arrangements at a transmitter are described, Figs. 1, 2 (neither shown).
GB48884/64A
1963-12-13
1964-12-01
Radio locating systems
Expired
GB1084729A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR957082A
FR1386484A
(en)
1963-12-13
1963-12-13
Improvements to radio-localization systems
Publications (1)
Publication Number
Publication Date
GB1084729A
true
GB1084729A
(en)
1967-09-27
Family
ID=8818784
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB48884/64A
Expired
GB1084729A
(en)
1963-12-13
1964-12-01
Radio locating systems
Country Status (5)
Country
Link
US
(1)
US3350713A
(en)
BE
(1)
BE657002A
(en)
FR
(1)
FR1386484A
(en)
GB
(1)
GB1084729A
(en)
NL
(1)
NL6414421A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3829782A
(en)
*
1971-12-14
1974-08-13
Hewlett Packard Co
Electrocardiograph telemetry system having circuitry for indicating inoperative conditions
US4227075A
(en)
*
1977-08-30
1980-10-07
International Telephone And Telegraph Corporation
Multichannel fiber optic control system
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2840797A
(en)
*
1952-08-14
1958-06-24
Westinghouse Electric Corp
Supervisory control systems and apparatus
US2876341A
(en)
*
1953-06-11
1959-03-03
Western Union Telegraph Co
Fault alarm radio repeater system
US3085245A
(en)
*
1956-12-10
1963-04-09
Seismograph Service Corp
Automatic switchover system for radio transmitters
FR1220297A
(en)
*
1958-02-18
1960-05-24
Gen Electric Co Ltd
Telecommunications installation
US3130277A
(en)
*
1960-12-29
1964-04-21
Bell Telephone Labor Inc
Order wire and alarm circuits
1963
1963-12-13
FR
FR957082A
patent/FR1386484A/en
not_active
Expired
1964
1964-12-01
GB
GB48884/64A
patent/GB1084729A/en
not_active
Expired
1964-12-03
US
US415739A
patent/US3350713A/en
not_active
Expired – Lifetime
1964-12-11
NL
NL6414421A
patent/NL6414421A/xx
unknown
1964-12-11
BE
BE657002A
patent/BE657002A/xx
unknown
Also Published As
Publication number
Publication date
FR1386484A
(en)
1965-01-22
NL6414421A
(en)
1965-06-14
BE657002A
(en)
1965-04-01
US3350713A
(en)
1967-10-31
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