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. 19, 2006
Filed:
Sep. 22, 2004
Hirofumi Oguri, Nagoya, JP;
Tetsuya Kato, Chiryu, JP;
Hirofumi Oguri, Nagoya, JP;
Tetsuya Kato, Chiryu, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A recording apparatus has a bidirectional recording section, a check pattern recording section that forms check patterns different in record position of backward recording relative to forward recording when each check pattern having vertical ruled lines are recorded, a density data detection section that acquires density data of each check pattern, a density amplitude detection section that extracts partial in each partial segment from the density data of each check pattern, detects minimum and maximum values of each partial data, and detects a difference between the minimum and maximum values as a density amplitude value, an amplitude difference detection section that detects a difference between the density amplitude values of adjacent partial segments as an amplitude difference value in each check pattern, and a best pattern determination section that determines a best check pattern in which the variation amount of the density data is the smallest in each check pattern.