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:
Jun. 28, 1988
Filed:
Feb. 17, 1987
Nobutaka Fukai, Kanagawa, JP;
Toshitaka Agano, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A scanning read-out apparatus comprises a device for detecting the scanning speed of a light beam and generating a scanning speed signal, and a device for calculation between a read-out signal detected by scanning of a read-out objective and the scanning speed signal and for generating a corrected read-out signal representing the result of the calculation. A coefficient for correction of the read-out signal is adjusted by forcibly fluctuating the scanning speed of the light beam on a read-out objective for correction coefficient adjustment, generating a correction signal by multiplying the scanning speed signal by an arbitrary coefficient, correcting the read-out signal by using the correction signal, extracting a signal of a noise component caused by the forcible fluctuation from the corrected read-out signal, finding the coefficient at which the extracted signal becomes the minimum, and using the coefficient thus found as the correction coefficient.