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. 12, 2005
Filed:
Jun. 02, 2003
Brian C. Mayer, Nampa, ID (US);
Daniel J. Martin, Boise, ID (US);
Edward Michael Wood, Boise, ID (US);
Brian C. Mayer, Nampa, ID (US);
Daniel J. Martin, Boise, ID (US);
Edward Michael Wood, Boise, ID (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A disabler circuit is disclosed for disabling a function of a device. The disabler circuit includes a switch electrically coupled to an input voltage and to ground. The disabler circuit further includes a fuse electrically coupled a series with the switch between the input voltage and ground. The disabler circuit also includes a resistor electrically coupled and parallel with the switch and in series with the fuse between the input voltage and ground. If the switch is off, then current flows from the input voltage to ground through the resistor and the fuse and the current is too small to blow the fuse. If the switch is on, then current flows from the input voltage to ground through the switch and the fuse and is large enough to blow the fuse. In specific embodiment, the disabler circuit is part of a formatter in a printer to disable a duplexing function of the printer.