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:
Jan. 18, 2011
Filed:
May. 08, 2007
Kenichiro Oi, Kanagawa, JP;
Masahiro Fujita, Saitama, JP;
Takayuki Yoshigahara, Tokyo, JP;
Steffen Gutmann, Tokyo, JP;
Masaki Fukuchi, Tokyo, JP;
Kenichiro Oi, Kanagawa, JP;
Masahiro Fujita, Saitama, JP;
Takayuki Yoshigahara, Tokyo, JP;
Steffen Gutmann, Tokyo, JP;
Masaki Fukuchi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a position estimation apparatus capable of determining whether an estimated value deviates from an actual value and trying a process to correct the estimated value if the estimated value is determined to be incorrect. The position estimation apparatus employs a position prediction unit configured to produce a prediction of the position of a mobile object having an odometry sensor mounted thereon, an environment observation unit configured to keep track of each feature point in the environment of the mobile object, a prediction-error check unit configured to determine whether the position prediction produced by the position prediction unit is correct or incorrect, a position-prediction correction unit configured to correct a wrong position prediction and a position/posture updating unit configured to update the position and/or posture of the mobile object on the basis of a correct position prediction.