GB453011A - Improvements in relaxation oscillation generators - Google Patents

Improvements in relaxation oscillation generators

Info

Publication number
GB453011A
GB453011A GB19683/35A GB1968335A GB453011A GB 453011 A GB453011 A GB 453011A GB 19683/35 A GB19683/35 A GB 19683/35A GB 1968335 A GB1968335 A GB 1968335A GB 453011 A GB453011 A GB 453011A
Authority
GB
United Kingdom
Prior art keywords
resistance
condenser
ohms
july
frequency oscillator
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
GB19683/35A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB453011A publication Critical patent/GB453011A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/86—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements gas-filled tubes or spark-gaps
    • 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)
  • Lasers (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
  • Special Spraying Apparatus (AREA)
  • Particle Accelerators (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

453,011. Valve generating circuits. RADIOAKT-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. July 10, 1935, No. 19683. Convention date, July 20, 1934. Addition to 423,394. [Classes 40 (iii) and 40 (v)] Two or more relaxation oscillators of the kind employing a grid -controlled gas-discharge tube 3 and a resistance 1 in the discharge circuit of the condenser 2, as described in the parent Specification, are so dimensioned that the time constants of the resistance-condenser combination are the same in all the associated oscillators. Thus in a television system the line-frequency oscillator may use a condenser of about 0À01 mf. and a resistance of about 500 ohms, and the image-frequency oscillator, a condenser of about 2 mf. and a resistance of about 3 ohms. The time constant should be equal to the duration of the shortest signal employed for synchronizing.
GB19683/35A 1932-05-02 1935-07-10 Improvements in relaxation oscillation generators Expired GB453011A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE423583X 1932-05-02
DE423394X 1932-06-01
US668940A US2083202A (en) 1932-05-02 1933-05-02 Arrangement for generating tilting oscillations
US711572A US2188288A (en) 1932-05-02 1934-02-16 Arrangement for generating tilting oscillations
DE453011X 1934-07-20

Publications (1)

Publication Number Publication Date
GB453011A true GB453011A (en) 1936-09-03

Family

ID=32074678

Family Applications (3)

Application Number Title Priority Date Filing Date
GB12578/33A Expired GB423394A (en) 1932-05-02 1933-05-01 Improvements in relaxation oscillation generators
GB12576/33A Expired GB423583A (en) 1932-05-02 1933-05-01 Improvements in television relaxation oscillation generator systems
GB19683/35A Expired GB453011A (en) 1932-05-02 1935-07-10 Improvements in relaxation oscillation generators

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB12578/33A Expired GB423394A (en) 1932-05-02 1933-05-01 Improvements in relaxation oscillation generators
GB12576/33A Expired GB423583A (en) 1932-05-02 1933-05-01 Improvements in television relaxation oscillation generator systems

Country Status (3)

Country Link
US (3) US2083202A (en)
FR (2) FR755061A (en)
GB (3) GB423394A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE407565A (en) * 1934-03-17
US2443100A (en) * 1945-03-13 1948-06-08 Electrons Inc Electronic device
US2582247A (en) * 1945-10-16 1952-01-15 Jr Hunter C Goodrich Standard impulse noise generator
US2740043A (en) * 1952-03-03 1956-03-27 John E Williams Electronic linear sweep generator
US2845529A (en) * 1953-04-06 1958-07-29 James O Weldon Protective circuits
US3281717A (en) * 1961-06-23 1966-10-25 Royson Engineering Company Pulse generator having repetition rate linearly responsive to trigger signal amplitude

Also Published As

Publication number Publication date
US2113163A (en) 1938-04-05
US2188288A (en) 1940-01-23
GB423583A (en) 1935-02-01
FR755061A (en) 1933-11-17
FR46450E (en) 1936-06-03
GB423394A (en) 1935-02-01
US2083202A (en) 1937-06-08

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