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. 12, 2013
Filed:
Sep. 14, 2009
Michael G. Braun, Ft. Wayne, IN (US);
Jeremy Todd Dobler, Ft. Wayne, IN (US);
Wayne Henry Erxleben, Ft. Wayne, IN (US);
Douglas Paul Mcgregor, Ft. Wayne, IN (US);
Michael G. Braun, Ft. Wayne, IN (US);
Jeremy Todd Dobler, Ft. Wayne, IN (US);
Wayne Henry Erxleben, Ft. Wayne, IN (US);
Douglas Paul McGregor, Ft. Wayne, IN (US);
Exelis, Inc., McLean, VA (US);
Abstract
A lock-in ratio measurement system including a plurality of channels. Each of the channels generates and transmits a radiation signal modulated by a sequence of tones. The sequence of tones for each channel being unique in time to that respective channel. Each respective modulated signal is absorbed/reflected from a target or medium and received. Each channel computes a lock-in value based on the received modulation signal. The lock-in values are used to compute ratios between the channels for characterizing a target or medium.