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GB457771A - Improvements in or relating to electric signalling systems suitable for use in radio navigation systems - Google Patents

Improvements in or relating to electric signalling systems suitable for use in radio navigation systems

Info

Publication number
GB457771A
GB457771A GB15927/35A GB1592735A GB457771A GB 457771 A GB457771 A GB 457771A GB 15927/35 A GB15927/35 A GB 15927/35A GB 1592735 A GB1592735 A GB 1592735A GB 457771 A GB457771 A GB 457771A
Authority
GB
United Kingdom
Prior art keywords
valve
valves
condenser
radio
morse
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
GB15927/35A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB15927/35A priority Critical patent/GB457771A/en
Priority to US82515A priority patent/US2154492A/en
Priority to DEM134670D priority patent/DE678104C/en
Publication of GB457771A publication Critical patent/GB457771A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/64—Generators producing trains of pulses, i.e. finite sequences of pulses
    • H03K3/66—Generators producing trains of pulses, i.e. finite sequences of pulses by interrupting the output of a generator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)
  • Amplifiers (AREA)
  • Catching Or Destruction (AREA)

Abstract

457,771. Valve generating circuits; directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and CLOUGH, N. H., Axbrindon, Hill Road, Brentwood, Essex. May 31, 1935, No. 15927. [Class 40 (v)] An automatic signal-generator, particularly suitable for keying the overlapping or interlocking radio-beams used for navigation purposes, or for controlling road-traffic signs, comprises two cross-coupled valves 1, 2 arranged to have a very rapid change-over between two definite states of equilibrium, one having a different duration from the other. One state, for instance, is used to modulate a radio-beam with a morse " dot" and the other with a Morse " dash." The duration for the valve 1 is determined by the charging rate of the condenser 21 and resistance 19, and that for the valve 2 by condenser 22 and resistance 20. At a certain voltage the condenser 21 is discharged through a Neon lamp 23 which accelerates the changeover by applying a sharp pulse to the grid 10 of valve 1, whereupon the valve 2 comes into action until the discharge device 24 breaks down, and the cycle is repeated indefinitely. The changes of potential set up in the anode circuits of the valves 1, 2, are applied successively and in push-pull to two pentode valves which are used to modulate two overlapping radio beams. If gas-filled valves are used, the two anodes are connected by a condenser 31. A self-starting resistancecapacity combination 33, 32 and discharge device 34 may be inserted, as shown, to initiate operations. A pair of auxiliary valves may also be shunted across the two timing condensers 21, 22 and are automatically "triggered" to accelerate their discharge.
GB15927/35A 1935-05-31 1935-05-31 Improvements in or relating to electric signalling systems suitable for use in radio navigation systems Expired GB457771A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB15927/35A GB457771A (en) 1935-05-31 1935-05-31 Improvements in or relating to electric signalling systems suitable for use in radio navigation systems
US82515A US2154492A (en) 1935-05-31 1936-05-29 Radio signaling system
DEM134670D DE678104C (en) 1935-05-31 1936-05-30 Circuit arrangement for generating two complementary characters, in particular for the purpose of guide beam formation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15927/35A GB457771A (en) 1935-05-31 1935-05-31 Improvements in or relating to electric signalling systems suitable for use in radio navigation systems

Publications (1)

Publication Number Publication Date
GB457771A true GB457771A (en) 1936-11-30

Family

ID=10068052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15927/35A Expired GB457771A (en) 1935-05-31 1935-05-31 Improvements in or relating to electric signalling systems suitable for use in radio navigation systems

Country Status (3)

Country Link
US (1) US2154492A (en)
DE (1) DE678104C (en)
GB (1) GB457771A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735009A (en) * 1956-02-14 harry
US2452549A (en) * 1939-06-24 1948-11-02 Claud E Cleeton Double pulse generator
US2489269A (en) * 1940-05-15 1949-11-29 Claud E Cleeton Means for suppressing super numerary pulses
US2591677A (en) * 1940-10-11 1952-04-08 Claud E Cleeton Pulse group system of communications
US2573316A (en) * 1941-05-23 1951-10-30 Ibm Commutator
US2415467A (en) * 1943-01-05 1947-02-11 Purdue Research Foundation Variable frequency oscillator
US2441579A (en) * 1943-01-06 1948-05-18 Sperry Corp Stabilized multivibrator
US2553294A (en) * 1943-10-28 1951-05-15 Gen Electric Ratio circuit
US2540478A (en) * 1945-06-04 1951-02-06 Bell Telephone Labor Inc Multivibrator
US2511086A (en) * 1946-04-06 1950-06-13 Philco Corp Superregenerative receiver
US2517538A (en) * 1946-05-03 1950-08-08 Beecher Harry Electronic keying device
US2495826A (en) * 1946-09-18 1950-01-31 Rca Corp Locking and control circuit in a diversity telegraphy receiver
NL73106C (en) * 1946-10-24
US2574383A (en) * 1947-11-17 1951-11-06 Honeywell Regulator Co Temperature control apparatus
US2562228A (en) * 1947-12-12 1951-07-31 Rca Corp Frequency divider
US2653247A (en) * 1948-05-08 1953-09-22 Westinghouse Electric Corp X-ray thickness gauge
US2773255A (en) * 1950-10-27 1956-12-04 Westinghouse Electric Corp Electronic detecting and indicating system
US6525579B1 (en) * 1954-01-12 2003-02-25 The United States Of America As Represented By The Attorney General Pulse translational circuits
US2847571A (en) * 1955-05-13 1958-08-12 Jennings Radio Mfg Corp Pulse generator
US2892980A (en) * 1956-06-04 1959-06-30 Holzer Johann Binary pulse modulator
US3067388A (en) * 1957-08-27 1962-12-04 Gen Radio Co Bistable counter with constant current tubes connected to grids
US2890295A (en) * 1957-10-29 1959-06-09 Paul E Murfin Low frequency amplifier
US2991428A (en) * 1958-03-12 1961-07-04 Itt Electronic generator of telephone ringing current
US2997665A (en) * 1959-07-22 1961-08-22 Gen Electric Multivibrator circuit having a bistable circuit driving and triggered by a relaxation circuit

Also Published As

Publication number Publication date
US2154492A (en) 1939-04-18
DE678104C (en) 1940-02-02

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