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:
Jul. 17, 2001
Filed:
Dec. 08, 1999
Mark A. Bortnem, Newberg, OR (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A consumable component identification and detection apparatus enables a host device to detect and identify a consumable component inserted into the host device, such as a printer. A passive circuit element is embedded into the consumable component and remaining circuit elements are included in the host device so that when the consumable component is in the host device an electrical circuit having known characteristics is completed. The electrical circuit, such as a filter, is energized by a test signal and the output from the electrical filter together with the test signal are input to a characterization circuit to identify/detect the consumable component. A counter/timer may be used as part of the characterization circuit to count clock pulses when the output from the electrical circuit after initial processing is coincident with the test signal. The count is interpreted to identify/detect the consumable component.