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:
Sep. 08, 2009
Filed:
Jul. 24, 2006
Sandip Maity, Bangalore Karnataka, IN;
Ayan Banerjee, Bangalore, IN;
Anis Zribi, Rexford, NY (US);
Stacey Kennerly, Niskayuna, NY (US);
Long Que, Rexford, NY (US);
Glenn Claydon, Wynantskill, NY (US);
Shankar Chandrasekaran, Tamil Nadu, IN;
Shivappa Goravar, Laxmeshwar Karnataka, IN;
Sandip Maity, Bangalore Karnataka, IN;
Ayan Banerjee, Bangalore, IN;
Anis Zribi, Rexford, NY (US);
Stacey Kennerly, Niskayuna, NY (US);
Long Que, Rexford, NY (US);
Glenn Claydon, Wynantskill, NY (US);
Shankar Chandrasekaran, Tamil Nadu, IN;
Shivappa Goravar, Laxmeshwar Karnataka, IN;
General Electric Company, Niskayuna, NY (US);
Abstract
A method of Raman detection for a portable, integrated spectrometer instrument includes directing Raman scattered photons by a sample to an avalanche photodiode (APD), the APD configured to generate an output signal responsive to the intensity of the Raman scattered photons incident thereon. The output signal of the APD is amplified and passed through a discriminator so as to reject at least one or more of amplifier noise and dark noise. A number of discrete output pulses within a set operational range of the discriminator is counted so as to determine a number of photons detected by the APD.