GB714442A - Automatic frequency control circuits - Google Patents

Automatic frequency control circuits

Info

Publication number
GB714442A
GB714442A GB3016551A GB3016551A GB714442A GB 714442 A GB714442 A GB 714442A GB 3016551 A GB3016551 A GB 3016551A GB 3016551 A GB3016551 A GB 3016551A GB 714442 A GB714442 A GB 714442A
Authority
GB
United Kingdom
Prior art keywords
condenser
frequency control
control circuits
automatic frequency
dec
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
GB3016551A
Inventor
Donald John Davey Pugsley
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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 Pye Ltd filed Critical Pye Ltd
Priority to GB3016551A priority Critical patent/GB714442A/en
Publication of GB714442A publication Critical patent/GB714442A/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
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electrotherapy Devices (AREA)
  • Control Of Eletrric Generators (AREA)
  • Treating Waste Gases (AREA)

Abstract

714,442. Pulse generating circuits. PYE, Ltd. Dec. 24, 1952 [Dec. 24, 1951], No. 30165/51. Class 40 (6). [Also in Group XXXV] A circuit for producing the waveform shown in Fig. 3 comprises a triode valve V, Fig. 4, fed on its grid with a sine-wave voltage and with a condenser C2 connected across anode and cathode. The saw-tooth voltage normally produced on this condenser is combined with a sinewave voltage fed from the grid input via a condenser C1 and resistor R3 to a tapping on the anode resistor R1.
GB3016551A 1951-12-24 1951-12-24 Automatic frequency control circuits Expired GB714442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3016551A GB714442A (en) 1951-12-24 1951-12-24 Automatic frequency control circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3016551A GB714442A (en) 1951-12-24 1951-12-24 Automatic frequency control circuits

Publications (1)

Publication Number Publication Date
GB714442A true GB714442A (en) 1954-08-25

Family

ID=10303309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3016551A Expired GB714442A (en) 1951-12-24 1951-12-24 Automatic frequency control circuits

Country Status (1)

Country Link
GB (1) GB714442A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080629B (en) * 1956-11-20 1960-04-28 Marconi Wireless Telegraph Co Circuit arrangement for generating a control voltage dependent on the phase position of two oscillations to be compared
DE1085912B (en) * 1957-06-21 1960-07-28 Siemens Elektrogeraete Gmbh Electronic information storage
DE1114532B (en) * 1957-10-15 1961-10-05 Telefunken Patent Circuit arrangement for synchronizing a vibration generator
DE1166817B (en) * 1957-10-15 1964-04-02 Telefunken Patent Circuit arrangement for synchronizing a vibration generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080629B (en) * 1956-11-20 1960-04-28 Marconi Wireless Telegraph Co Circuit arrangement for generating a control voltage dependent on the phase position of two oscillations to be compared
DE1085912B (en) * 1957-06-21 1960-07-28 Siemens Elektrogeraete Gmbh Electronic information storage
DE1114532B (en) * 1957-10-15 1961-10-05 Telefunken Patent Circuit arrangement for synchronizing a vibration generator
DE1166817B (en) * 1957-10-15 1964-04-02 Telefunken Patent Circuit arrangement for synchronizing a vibration generator

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