Invention Grant
- Patent Title: Position detecting system and position detecting method using an evaluation function
- Patent Title (中): 位置检测系统和使用评估功能的位置检测方法
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Application No.: US12882336Application Date: 2010-09-15
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Publication No.: US08217645B2Publication Date: 2012-07-10
- Inventor: Takahiro Iida , Atsushi Chiba , Atsushi Kimura , Akio Uchiyama
- Applicant: Takahiro Iida , Atsushi Chiba , Atsushi Kimura , Akio Uchiyama
- Applicant Address: JP Tokyo
- Assignee: Olympus Medical Systems Corp.
- Current Assignee: Olympus Medical Systems Corp.
- Current Assignee Address: JP Tokyo
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Priority: JP2009-062978 20090316; JP2009-107875 20090427
- Main IPC: G01B7/14
- IPC: G01B7/14

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.
Public/Granted literature
- US20110181273A1 POSITION DETECTING SYSTEM AND POSITION DETECTING METHOD Public/Granted day:2011-07-28
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