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:
Aug. 18, 2015
Filed:
Jan. 09, 2014
Marvell International Ltd., Hamilton, BM;
David A. Bartle, Boise, ID (US);
Marvell International Ltd., Hamilton, BM;
Abstract
Various techniques are described for acoustically exciting a toner cartridge and acoustically measuring an amount of ink or toner in a toner cartridge by using known resonant shaping structures built into the toner cartridge. As ink or toner is consumed, a resonant shaping structure covered by the ink or toner is partially revealed, changing an acoustic signature received from the toner cartridge. A current level of ink or toner is determined by analyzing the acoustic signature. The current level is used to calibrate a relationship function used to estimate a remaining number of pages that can be printed based on the level of ink or toner remaining in the toner cartridge.