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:
Dec. 22, 2009
Filed:
Jun. 05, 2006
Ali M. Elhagediab, Dearborn, MI (US);
Ali M. Elhagediab, Dearborn, MI (US);
Other;
Abstract
A sensing system () for a device () contains a light absorbing or scattering object (). An illumination device () generating and emitting an illumination beam into the object (). A first light filter () has at least one associated light spectrum filtering frequency. A first light sensor () is coupled to the first light filter (), receives a first object-emitted portion of the illumination beam, and generates a first signal in response to the first portion. A second light filter () has at least one associated light spectrum filtering frequency. A second light sensor () is coupled to the second light filter (), receives a second objected-emitted portion of the illumination beam, and generates a second signal in response to the second portion. A controller () generates a parameter signal, associated with a characteristic of the object, in response to the first signal and the second signal.