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:
Dec. 15, 1981
Filed:
Jul. 21, 1980
William T Fearnside, Victor, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Optical scanning method and apparatus suitable for use with a video player for scanning an information bearing medium to produce a standard television signal is disclosed. The scanning apparatus includes a movable mirror that deflects an optical path to effect a scan. The mirror is angularly displaced, back and forth, between first and second positions at a substantially constant rate in a 'back-to-back sawtooth' fashion, such that one scan is made as the mirror is moved from the first position to the second position, and the next scan is made as the mirror is returned from its second position to its first position. The scanning apparatus inverts an image transmitted along the optical path between each successive scan to provide scanning in a 'sawtooth' fashion, e.g. scanning an image from top to bottom--quickly retracing to the top of the image--and repeating the scanning process from top to bottom, as is required in the standard television scanning format.