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.

Date of Patent:
Jul. 26, 2016

Filed:

Nov. 19, 2013
Applicant:

Shimadzu Corporation, Kyoto-shi, Kyoto, JP;

Inventor:

Yusuke Yokoi, Kyoto, JP;

Assignee:

SHIMADZU CORPORATION, Kyoto-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/00 (2006.01); G01N 21/27 (2006.01); G01N 30/86 (2006.01); G01J 1/42 (2006.01); G01J 1/02 (2006.01); G01J 1/44 (2006.01); G01J 1/08 (2006.01);
U.S. Cl.
CPC ...
G01N 21/274 (2013.01); G01J 1/0228 (2013.01); G01J 1/4257 (2013.01); G01N 30/8641 (2013.01); G01J 2001/086 (2013.01); G01J 2001/444 (2013.01);
Abstract

There are provided a drift calculation device capable of accurately calculating a drift by using a buffer of smaller capacity, and a light detection device provided with the same. Every time measurement intensity is input according to a predetermined cycle, data in a plurality of sum bufferstoare updated based on at least one of the measurement intensity and the measurement time at that time. The sum bufferstoare assigned respectively to a plurality of sum functions forming a coefficient included in a calculation formula for calculating a drift by using the least squares method. A drift is calculated by substituting the updated data in the plurality of sum bufferstoin the calculation formula. Since it is not necessary to store all the measurement intensity input at the predetermined cycle, a drift is accurately calculated by a buffer of smaller capacity.


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