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:
May. 19, 1992
Filed:
Oct. 10, 1990
Masamichi Sugiura, Toyokawa, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A scan apparatus, comprising: a platen on which a document can be placed; a criterion member on which at least one black zone and at least one white zone are formed successively in the subscan direction, criterion member being arranged near the platen on the side from which a subscan is started; a device for detecting a linear optical image of the document to obtain the density distribution of the linear optical image; a device for scanning the criterion member and a document in the subscan direction which includes a device that illuminates a document placed on a document area of the platen and the criterion member; and a device for determining a reference timing for starting a scan of the document on the platen, which is connected to the device that detects a linear optical image so as to detect a boundary between the black and white regions and determine the reference timing from the boundary detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile