Video disc player with RFI reduction circuit including sync tip

Details Video disc player with RFI reduction circuit including sync tip Video disc player with RFI reduction circuit including sync tip

1981-06-24

1983-11-29

Faber, Alan

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 381, 455296, 358340, 358167, 358177, H04N 594

Patent

active

044183631

ABSTRACT:
Under certain conditions a video disc player can be responsive to externally applied interference signals to provide a defect in the display of the information recovered from the disc. Apparatus is provided which reduces the influence of the extraneous signal in the playback display. The apparatus includes a detection threshold level setting circuit which relies on the amplitude of the recovered signal during the recurring sync signals to establish the threshold at which corrective action will be taken in the player.

REFERENCES:
patent: 3605018 (1971-09-01), Coviello
patent: 3671867 (1972-06-01), Schwarz
patent: 4203134 (1980-05-01), Christopher
patent: 4327431 (1982-04-01), Dieterich
patent: 4327432 (1982-04-01), Lang
patent: 4328591 (1982-05-01), Baghdady
patent: 4361881 (1982-11-01), Clemens
patent: 4364119 (1982-12-01), Gibson

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