H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/35.21
H01J 29/70 (2006.01) H01J 29/74 (2006.01) H01J 31/38 (2006.01) H04N 3/16 (2006.01)
Patent
CA 1186363
ABSTRACT OF THE DISCLOSURE A multistandard camera is provided, wherein an analyser tube comprises a pair of metal plates to which is applied an alternating potential difference of a frequency at least twice as high as the maximum videofrequency and of an amplitude such that the interline space is scanned. The same tube thus allows 625-line scanning or 312.5-line scanning without there being any phenomenon of flickering of the image during 312.5-line analysis.
393609
Goudreau Gage Dubuc
Thomson-Csf
LandOfFree
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