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:
Nov. 03, 2015
Filed:
Mar. 25, 2015
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Katsumi Inukai, Iwakura, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya-Shi, Aichi-Ken, JP;
Abstract
In a heating device, a heater has first and second terminals. The first terminal is connectable to an alternating current source. The adjustment portion selectively establishes and disconnects a first connection between the second terminal and the alternating current source. The switching portion selectively establishes and disconnects a second connection between the heater and the alternating current source. The generating circuit has a third terminal connected to the alternating current source and a fourth terminal connected between the second terminal and the adjustment portion. The generating circuit generates a zero-cross signal of the alternating current source. The processor is configured to: adjust a connection period during which the adjustment portion establishes the first connection; detect a state of the adjustment portion in response to the zero-cross signal; and perform an error process when the detected state of the adjustment portion indicates that the adjustment portion cannot disconnect the first connection.