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. 12, 2014
Filed:
Dec. 18, 2012
Teledyne Technologies Incorporated, Thousand Oaks, CA (US);
William R. Christian, Newbury Park, CA (US);
Ray C. Delcher, Oxnard, CA (US);
Tong Chen, Palo Alto, CA (US);
Mohsen Khoshnevisan, Newbury Park, CA (US);
Phillip B. Liescheski, Lincoln, NE (US);
Michael A. Metcalf, San Diego, CA (US);
Teledyne Technologies Incorporated, Thousand Oaks, CA (US);
Abstract
A laser Doppler velocimeter uses self-mixing amplification of backreflections from scatterers below the surface of a flow. A time domain signal is divided into segments that are roughly equal to a transit time of particles through a focus of a laser beam. The segments are connected to a frequency domain through the use of an FFT algorithm to produce frequency domain data segments. Signal-to-noise ratio is enhanced through signal processing techniques using the segments to produce a final enhanced signal spectrum.