Title: Image motion and change transducers and systems controlled thereby

Abstract: A selected area of an arbitrary image is scanned to derive analog video signals which are filtered and converted to binary signals which are compared with a signal representative of a reference image to produce a signal indicative of differences occurring between the scanned and reference images.

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Inventors: Bolsey, Emil J. (White Plains, NY, US)

Application Number: 486065
Filing Date: 1974-07-08
Publication_date: 1976-01-13
Assignee:
Primary Class(es): 348/155
Other Classes:
US Patent Ref:

3465169	Sep, 1969	Foerster	250/214.
3686434	Aug, 1972	Lemelson	178/DIG.
3743768	Jul, 1973	Copland	178/DIG.
3781842	Dec, 1973	Campman	250/209.

Other Refs:
Primary Examiner: Britton, Howard W.
Assistant Examiner:
Attorney: Amster & Rothstein