Title:
A personal digital assistant device, a program, and a correcting method
Document Type and Number:
Japanese Patent JP6152511
Kind Code:
B2
Abstract:
A portable terminal device provided with: a gyro sensor measuring an angular velocity to acquire angular velocity information; an acceleration sensor measuring an acceleration to acquire acceleration information; a camera capturing an image of a subject in surroundings to acquire image information; a vector calculation unit calculating a motion vector of the subject based on the image information; a correlation decision unit deciding a relative relation between a traveling direction by a walking motion of the user and an image-capturing direction of the camera in accordance with the angular velocity information and the acceleration information; a rectilinear walking decision unit deciding whether the user is in a rectilinear state in accordance with the calculated motion vector of the subject and correlation decision information; and a correction unit correcting the angular velocity information acquired by the gyro sensor in response to decision that the user is in the rectilinear state.
Inventors:
Masato Matsumoto
Application Number:
JP2013072311A
Publication Date:
June 28, 2017
Filing Date:
March 29, 2013
Export Citation:
Assignee:
Mega Chips Co., Ltd.
International Classes:
G01C19/00; G01C21/26; G01C21/28; H04M1/00
Domestic Patent References:
| JP2013117493A | ||||
| JP7324941A | ||||
| JP2004138513A | ||||
| JP2008275344A |
Attorney, Agent or Firm:
Naoyuki Matsuoka