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:
Apr. 28, 1998
Filed:
May. 15, 1995
Tatsuya Satou, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
In an image reading device, an image scanner reads data by scanning a document at a fixed speed in a main scanning direction, and a stepping motor feeds the document in an auxiliary scanning direction. In a through-up drive of the stepping motor, the rotational speed of the motor is increased in stepwise manner up to a rated high speed. Before the rotational speed of the motor reaches the rated high speed, the number of lines that the document is fed does not agree to the number of lines scanned by the image scanner. To effectively use the scanned data and to obtain good image, a number of blocks of line data equal to a number of lines fed by the stepping motor when the motor feeds the document at a speed slower than the rated speed is produced by using all of blocks of line data produced from the image scanner during feeding of the document at the slow speed.