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:
Aug. 09, 2022

Filed:

May. 05, 2021
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Aleksandr Rusinov, Manchester, GB;

Li Ding, Manchester, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/02 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/027 (2013.01); H01J 49/0031 (2013.01); H01J 49/0036 (2013.01); H01J 49/4225 (2013.01);
Abstract

Apparatus and method for processing an image-charge/current signal for an ion(s) undergoing oscillatory motion within an ion analyser apparatus. The method comprises: obtaining a recording of the image-charge/current signal (-) in the time domain. Then, by a signal processing unit, a value for the period (T) of a periodic signal component is determined within the recorded signal. Subsequently, the recorded signal is segmented into a number of successive time segments [0;T] of duration corresponding to the period (T). These lime segments are then co-registered in a first time dimension (t) defining the period (T). The co-registered time segments are then separated along a second time dimension (t) transverse to the first time dimension (t). This generates a stack of time segments collectively defining a 2-dimensional (2D) function. The 2D function varies both across the stack in the first time dimension and along the stack in the second time dimension.


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