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:
Mar. 20, 2012
Filed:
Apr. 02, 2009
Hiroshi Takami, Yokohama, JP;
Hiroshi Takami, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image fixing apparatus has an integration circuit which is provided in a signal path from a comparison circuit to a relay drive circuit and integrates a signal input to the integration circuit, wherein an integral value of the signal input to said integration circuit reaches a reference value; and a latch circuit having an input port connected to a signal path from said integration circuit to the relay drive circuit and an output port connected to a signal path from the comparison circuit to the integration circuit. The latch circuit continuously transmits a signal from said output port to the integration circuit, upon a change in a signal level of the input port so that the relay is switched to the open position, and latches the relay in the open position.