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:
Dec. 05, 2000
Filed:
Aug. 04, 1997
Yoshifumi Nagata, Kobe, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An apparatus for detecting a position of an object, including a signal output portion for generating a predetermined signal to radiate the signal into a space toward an arbitrary object, a signal input portion having a plurality of sensors for individually receiving signals reflected from the object, an impulse response calculating portion for obtaining an impulse response for each sensor in accordance with the signal radiated from the signal output portion and the signals received by the plural sensors, and an object position estimating portion for calculating the weight of a virtual position determined at an arbitrary point on the assumption that the signal radiated to the space by the signal output portion is reflected by the virtual position in such a manner that transmission time required for the signal to reach the signal input portion is measured and the components of each impulse response calculated in accordance with the transmission time are used to calculate the weight and calculating the weight while shifting the virtual position to estimate a virtual position, at which the weight exceeds a predetermined threshold value, to be the position of the object.