GB538553A - Improvements in electric periodic wave repeaters and generators - Google Patents

Improvements in electric periodic wave repeaters and generators

Info

Publication number
GB538553A
GB538553A GB27770/39A GB2777039A GB538553A GB 538553 A GB538553 A GB 538553A GB 27770/39 A GB27770/39 A GB 27770/39A GB 2777039 A GB2777039 A GB 2777039A GB 538553 A GB538553 A GB 538553A
Authority
GB
United Kingdom
Prior art keywords
valve
pulses
network
input
circuit
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
GB27770/39A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Publication of GB538553A publication Critical patent/GB538553A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H04N5/0675—Arrangements or circuits at the transmitter end for mixing the synchronising signals with the picture signal or mutually
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
    • H03B19/08—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device
    • H03B19/12—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device using division only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/16—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using a transformer for feedback, e.g. blocking oscillator with saturable core
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Electrotherapy Devices (AREA)

Abstract

538,553. Valve circuits relaxation oscillators. HAZELTINE CORPORATION. Oct. 12, 1939, Nos. 27770 and 27771. Convention dates, Oct. 21, 1938 and Dec. 15, 1938. [Classes 40 (iii) and 40 (v)] A thermionic valve circuit for generating periodic pulsations or for transmitting periodic pulsations with or without frequency division comprises a delay network for periodically sensitizing the valve to the desired periodic pulses, the valve being otherwise insensitive so that undesired and irregular pulses are not transmitted. In one arrangement, Fig. 1, a relaxation oscillator comprising a valve 10 periodically discharging a condenser 11 periodically re-charged through a resistance 13 by a battery 12, is fed from a synchronizing source 18 with pulses 1, 2, ..., Fig 2a, and the output of the valve is fed back through a delay network 24. The action of the condenser 11 and resistor 13 is supplemented and may be replaced by the action of the input condenser and leak 15. If the delay in the network corresponds to the time interval between pulses 1 and 4, Fig 2a, the combined input is as shown by Fig. 2d. The valve is biased to be sensitive only to the higher pulses of Fig. 2d, so that the circuit transmits only pulses at that frequency as shown in Fig: 2e, other pulses and any irregular pulses being eliminated. The input and output circuits of the valve may be coupled by inductors 16, 17 ; and if the synchronizing source 18 is omitted, the circuit can be made to act as a generator of pulses. In a modification, the delay network is a reflecting one. Another arrangement, Fig. 5, comprises only valve 10 back-coupled by the delay network 44. In this arrangement an initial pulse, Fig. 6a caused by the closing of the anode circuit is delayed by the network and applied to the input as the pulse Fig. 6b. This causes an anode pulse, Fig. 6c, which is again delayed through the network to form another input pulse, Fig. 6d. The succession of this delayed feedback process ultimately produces the pulses of rectangular wave form, Fig. 6h and Fig. 6i at the anode and grid respectively. In other arrangements, the network is in the output circuit of the valve only, Figs 7 and 9 (not shown), or in the input circuit of the valve only, Figs. 11 and 12 (not shown). Specification 531,712 is referred to.
GB27770/39A 1938-10-21 1939-10-12 Improvements in electric periodic wave repeaters and generators Expired GB538553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US236200A US2212173A (en) 1938-10-21 1938-10-21 Periodic wave repeater

Publications (1)

Publication Number Publication Date
GB538553A true GB538553A (en) 1941-08-08

Family

ID=22888547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27770/39A Expired GB538553A (en) 1938-10-21 1939-10-12 Improvements in electric periodic wave repeaters and generators

Country Status (5)

Country Link
US (1) US2212173A (en)
BE (1) BE436744A (en)
DE (1) DE895310C (en)
FR (1) FR863338A (en)
GB (1) GB538553A (en)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581968A (en) * 1941-04-04 1946-10-31 Standard Telephones Cables Ltd Improvements in or relating to the generation of electrical impulses
US2487995A (en) * 1941-05-26 1949-11-15 Samuel M Tucker Pulse echo receiver with regenerative feedback
BE469511A (en) * 1941-07-08
BE480687A (en) * 1941-12-19
US2489303A (en) * 1942-04-06 1949-11-29 Lifschutz Harold Counter frequency divider without time delay
FR977117A (en) * 1942-06-27 1951-03-28 Radio Electr Soc Fr Electric oscillation generator
US2429809A (en) * 1942-09-17 1947-10-28 Gen Electric Radio locating equipment
US2418127A (en) * 1942-12-01 1947-04-01 Standard Telephones Cables Ltd Filter system
US2458574A (en) * 1943-04-10 1949-01-11 Rca Corp Pulse communication
GB581328A (en) * 1943-04-28 1946-10-09 Standard Telephones Cables Ltd Improvements in or relating to frequency dividers
US2423999A (en) * 1943-10-18 1947-07-15 Farnsworth Television & Radio Impulse generator
US2468058A (en) * 1943-11-23 1949-04-26 Standard Telephones Cables Ltd Blocking system for multichannel operation
US2564000A (en) * 1944-01-13 1951-08-14 Francis J Gaffney Pulse generator system
US2447082A (en) * 1944-06-29 1948-08-17 Rca Corp Generator circuit
US2445448A (en) * 1944-07-27 1948-07-20 Rca Corp Electron discharge device trigger circuit
US2434922A (en) * 1944-11-02 1948-01-27 Standard Telephones Cables Ltd Pulse amplitude selector system
US2434921A (en) * 1944-11-02 1948-01-27 Standard Telephones Cables Ltd Pulse amplitude selective system
US2493379A (en) * 1945-02-16 1950-01-03 Eric W Anderson Pulse generating circuit
US2537113A (en) * 1945-03-06 1951-01-09 William M Yost Multiple pulse generator
US2659080A (en) * 1945-08-01 1953-11-10 Adalbert E Benfield Self-synchronous moving target indication system
US2784310A (en) * 1946-01-08 1957-03-05 Eugene W Cowan Pulse width selecting filter
US2601289A (en) * 1946-04-26 1952-06-24 Int Standard Electric Corp Reiterating system
US2482973A (en) * 1946-04-30 1949-09-27 Bendix Aviat Corp Frequency multiplier
US2482974A (en) * 1946-04-30 1949-09-27 Bendix Aviat Corp Frequency multiplier having an output of pulse groups
US2544407A (en) * 1946-05-02 1951-03-06 Raytheon Mfg Co Electrical circuits
US2990515A (en) * 1946-12-13 1961-06-27 Philco Corp Multiple signal delay device
US2740109A (en) * 1946-12-19 1956-03-27 Hazeltine Research Inc Pulse generator
US2538277A (en) * 1947-02-14 1951-01-16 Rca Corp Frequency divider
US2538278A (en) * 1947-03-04 1951-01-16 Rca Corp Frequency divider
US2574207A (en) * 1947-05-23 1951-11-06 Brush Dev Co Magnetic recording and reproducing
US2629827A (en) * 1947-10-31 1953-02-24 Eckert Mauchly Comp Corp Memory system
US2650357A (en) * 1947-11-13 1953-08-25 Philco Corp Delay controlled pulse generator
US2616047A (en) * 1948-03-13 1952-10-28 Philco Corp Pulse generator
US2510167A (en) * 1948-03-25 1950-06-06 Philco Corp Pulse generator and starting circuit therefor
US2543730A (en) * 1948-12-30 1951-02-27 Thomas F C Muchmore Self-triggering thyratron pulse generator
US2613276A (en) * 1949-01-07 1952-10-07 John H Homrighous Multiplex time division radiophone system
FR995598A (en) * 1949-07-25 1951-12-04 Electronique & Automatisme Sa Improvements to electrical impulse transmission devices
NL93535C (en) * 1949-10-19
US2687473A (en) * 1950-04-13 1954-08-24 Remington Rand Inc Signal cycling device
BE514682A (en) * 1951-11-23
US2750510A (en) * 1952-01-16 1956-06-12 Rca Corp Free-running square wave generator
US2843738A (en) * 1952-11-28 1958-07-15 Philips Corp Circuit arrangement for producing pulses
US2769088A (en) * 1953-05-11 1956-10-30 Hoffman Electronics Corp Oscillator
US2866091A (en) * 1953-12-29 1958-12-23 Gen Electric Pulse processing system
US2827566A (en) * 1954-12-30 1958-03-18 Underwood Corp Frequency changer
US2889456A (en) * 1955-07-22 1959-06-02 Ibm Blocking oscillator having sharp pulse cut-off
DE1083317B (en) * 1956-09-28 1960-06-15 Siemens Ag Delay element for the shifting of pulses synchronized by a clock pulse
US2912583A (en) * 1957-02-11 1959-11-10 Jr Bernard H Geyer Regeneration delay line storage system
GB1050126A (en) * 1963-12-19

Also Published As

Publication number Publication date
DE895310C (en) 1953-11-02
US2212173A (en) 1940-08-20
BE436744A (en)
FR863338A (en) 1941-03-29

Similar Documents

Publication Publication Date Title
GB538553A (en) Improvements in electric periodic wave repeaters and generators
US2482974A (en) Frequency multiplier having an output of pulse groups
US2409577A (en) Synchronized blocking oscillator
GB645121A (en) Improvements in and relating to self-pulsing oscillators
US2510167A (en) Pulse generator and starting circuit therefor
GB621781A (en) Improvements relating to electrical discharge means particularly pulse-generating means and blocking oscillators for use therewith
GB692180A (en) Pulse generator
US2482973A (en) Frequency multiplier
GB581968A (en) Improvements in or relating to the generation of electrical impulses
GB702968A (en) Improvements in or relating to pulse-generators, embodying sections of transmission line
US2590836A (en) Plate keyer for radar transmitters
GB638489A (en) Improvements in electric pulse generator or delay circuit arrangements
GB526584A (en) Improvements in or relating to electrical frequency dividing systems
GB540828A (en) Improvements in impulse modulation of high frequency oscillators
US2724776A (en) Signal generator
GB644892A (en) Improvements in or relating to pulse generators
US2530427A (en) Stabilized frequency divider circuit
US2993173A (en) Blocking oscillator frequency divider using reflective delay lines
US3235745A (en) Circuit arrangement for producing an electrical signal of definite duration, especially for frequency dividers for electrical pulses
US2863068A (en) Signal responsive network
GB778012A (en) Improvements in transistor pulse amplifier circuits
GB663464A (en) Oscillator for non-sinusoidal waves
GB866375A (en) Transistor apparatus for producing trains of short current pulses
GB687748A (en) Piezo-electric oscillator
GB734726A (en) Improvements in or relating to sawtooth current generators