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:
Jul. 10, 2012
Filed:
Sep. 15, 2010
Takahiro Iida, Hachioji, JP;
Atsushi Chiba, Hachioji, JP;
Atsushi Kimura, Akiruno, JP;
Akio Uchiyama, Yokohama, JP;
Takahiro Iida, Hachioji, JP;
Atsushi Chiba, Hachioji, JP;
Atsushi Kimura, Akiruno, JP;
Akio Uchiyama, Yokohama, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Abstract
A position detecting system including: a detected object disposed in a space; and an external device disposed outside the space, wherein the detected object includes a resonant circuit, and the external device includes at least two drive coils; at least two drive-signal input units; at least one sense coil; a signal adjustment unit that adjusts a phase or amplitude of a drive signal using an evaluation function for evaluating the phase or the amplitude, based on an intensity of the magnetic field; and a position deriving unit that derives a position of the detected object based on a magnetic field detected by the sense coil, wherein the evaluation function derives a solution by adding or multiplying a weight set according to a positional relation between each drive coil and each sense coil to or by an intensity of a magnetic field detected by the sense coils.