ES331948A1 - A television apparatus. (Machine-translation by Google Translate, not legally binding) - Google Patents

A television apparatus. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES331948A1
ES331948A1 ES0331948A ES331948A ES331948A1 ES 331948 A1 ES331948 A1 ES 331948A1 ES 0331948 A ES0331948 A ES 0331948A ES 331948 A ES331948 A ES 331948A ES 331948 A1 ES331948 A1 ES 331948A1
Authority
ES
Spain
Prior art keywords
generator
output
pulses
main
field synchronization
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
ES0331948A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES331948A1 publication Critical patent/ES331948A1/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/04Synchronising
    • H04N5/06Generation of synchronising signals
    • H04N5/067Arrangements or circuits at the transmitter end
    • H04N5/073Arrangements 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)
  • Television Systems (AREA)
  • Synchronizing For Television (AREA)

Abstract

A television set for synchronizing the main apparatus with the secondary apparatus for determining the relative difference in time between field synchronization pulses from a main pulse generator and field synchronization pulses having at least approximately the same frequency repeating from a secondary pulse generator, characterized in that the apparatus comprises an auxiliary comparison step having two output terminals X and Y and producing a correction signal output X if the pulses from the secondary generator are ahead of the pulses from the main generator, or a correction signal output Y if the pulses from the main generator are ahead of the pulses of the secondary generator, said signals X and Y being suitable for application to a secondary generator oscillator for the purpose retard or accelerate respectively, your fre pulse repetition until the impulses of the main and secondary generator are in synchronism, the comparison step comprising a first bistable circuit having its output connected to an output terminal X, a second bistable circuit having its output connected to a output terminal Y, and a first input terminal connected to an adjusting terminal of the first bistable circuit and adapted to receive the field synchronization pulses from said secondary generator, a second input terminal connected to a second adjustment terminal bistable circuit and intended to receive the field synchronization pulses from said main generator and a matching barrier connected between the output terminals X and Y, and a reset coupling from the output of said coincidence barrier to the replacement terminals of both mentioned bistable circuits, respectively. (Machine-translation by Google Translate, not legally binding)
ES0331948A 1965-10-06 1966-10-05 A television apparatus. (Machine-translation by Google Translate, not legally binding) Expired ES331948A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4239465A GB1085451A (en) 1965-10-06 1965-10-06 Improvements in or relating to correspondence systems

Publications (1)

Publication Number Publication Date
ES331948A1 true ES331948A1 (en) 1967-10-01

Family

ID=10424221

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0331948A Expired ES331948A1 (en) 1965-10-06 1966-10-05 A television apparatus. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES331948A1 (en)
GB (1) GB1085451A (en)

Also Published As

Publication number Publication date
GB1085451A (en) 1967-10-04

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