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:
Jun. 03, 2014

Filed:

Sep. 28, 2012
Applicant:

Olympus Medical Systems Corp., Tokyo, JP;

Inventor:

Masatoshi Homan, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/00 (2006.01); A61B 1/04 (2006.01);
U.S. Cl.
CPC ...
A61B 1/041 (2013.01); A61B 1/00016 (2013.01); A61B 1/00006 (2013.01);
Abstract

A position information estimation system includes: a body-insertable apparatus that is inserted into a subject and moves through an inside of the subject; a receiving unit that receives information from the body-insertable apparatus; and an information processor that performs processes on the information acquired from the receiving unit. The receiving unit includes an acquisition antenna that includes a plurality of receiving antennas and acquires information from the body-insertable apparatus. The information processor includes: a calculation unit that calculates difference values between signal levels acquired from the plurality of receiving antennas and corresponding signal levels acquired from the plurality of receiving antennas; a determination unit that compares each of the difference values with a threshold and determining whether to estimate position information; and a position information estimation unit that estimates position information of the body-insertable apparatus when the determination unit has determined that it is necessary to estimate the position information.


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