X-ray examining device comprising a television chain which inclu

Details X-ray examining device comprising a television chain which inclu X-ray examining device comprising a television chain which inclu

1977-06-24

1978-10-31

Konick, Bernard

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

358111, 360 37, 360 38, 358148, H04N 579

Patent

active

041237862

ABSTRACT:
In an X-ray examining device comprising a television chain and an image recording memory, the deflection signals of the television pick-up tube and a drive of the recording memory are synchronized via the power supply mains. When the high voltage generator is switched on, inductive loading of the power supply mains occurs and the resultant phase shifts cause errors in the synchronization. This gives rise to the appearance of artifacts in a monitor image formed from the recording via the memory. Uncoupling of the synchronization from the power supply mains between an instant some time before and an instant some time after switching of the high voltage generator prevents the undesired recording errors.

REFERENCES:
patent: 3383463 (1968-05-01), Goodell
patent: 3647953 (1972-03-01), Booker

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