The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1976
Filed:
Dec. 19, 1972
Joseph H Lancor, Jr, deceased, late of Arcadia, CA (US);
Leonard A Ferrari, San Clemente, CA (US);
Bell & Howell Company, Chicago, IL (US);
Abstract
Image display from a continuously moving image carrier with the aid of a repeatedly advanced and reset optical compensator is improved by omitting the traditional compensator bias spring and resetting the compensator with electric power pulse doublets. A substantially constant driving torque may be provided for the compensator in proportion to a damping term of the compensator equation of motion. An electric bias may alternatively or additionally be provided for biasing the compensator during image display against the direction of advance motion. Decelerating power may selectively be applied to the compensator to prevent or correct overshooting in the advance direction.