STATE FINDING APPARATUS FINDING STATE OF OBJECT BASED ON VALUE OF ANGULAR VELOCITY

• US 20140083187A1
• Filed: 08/15/2013
• Published: 03/27/2014
• Est. Priority Date: 09/21/2012
• Status: Active Grant

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: ABE, Kazuaki
• Granted Patent: US 10,203,347 B2
• Time in Patent Office: Days
• US Class Current: 73/488
• CPC Class Codes: A63B 24/0021 Tracking a path or terminating locations
• CPC Class Codes: G01P 3/00 Measuring linear or angular speed; Measuring differences of linear or angular speeds G01P5/00 - G01P11/00 take precedence; direction and speed indication G01P13/045; counting mechanisms G06M
• CPC Class Codes: G01P 3/56 for comparing two speeds

Abstract

A state finding apparatus includes an obtaining unit and a finding unit. The obtaining unit obtains a value of an angular velocity of a first object around a predetermined axis when the first object and a second object contact with each other. The finding unit finds a state of the second object based on the obtained value of the angular velocity.

Claims

1. A state finding apparatus comprising:

an obtaining unit which obtains a value of an angular velocity of a first object around a predetermined axis when the first object and a second object contact with each other; and

a finding unit which finds a state of the second object based on the obtained value of the angular velocity.

2. The state finding apparatus according to claim 1, wherein

the predetermined axis includes two predetermined axes being perpendicular to each other,

the obtaining unit obtains the value of the angular velocity of the first object around each of the axes, and

the finding unit finds the state of the second object having contacted with the first object based on the obtained values of the angular velocities.

3. The state finding apparatus according to claim 1 further comprising a contact detection unit which detects the contact between the first object and the second object, wherein

the obtaining unit obtains the value of the angular velocity when the contact detection unit detects the contact.

4. The state finding apparatus according to claim 3, wherein

the state finding apparatus is attached to a tool as the first object, and

the contact detection unit detects contact between the tool and the second object as the contact between the first object and the second object.

5. The state finding apparatus according to claim 4, wherein

the obtaining unit obtains a value of a first angular velocity of the state finding apparatus around a first axis which is approximately parallel to a surface of the tool, the surface including a hitting part to hit the second object, and approximately perpendicular to an extending direction of a holding part of the tool, the holding part being held by a user, and

the finding unit finds a speed of the second object having contacted with the tool based on the obtained value of the first angular velocity.

6. The state finding apparatus according to claim 5, wherein

the obtaining unit obtains a value of a second angular velocity of the state finding apparatus around a second axis which is approximately perpendicular to the surface, and

the finding unit finds an amount of rotation of the second object on a predetermined axis, the second object having being hit with the tool, based on the obtained value of the second angular velocity.

7. The state finding apparatus according to claim 5, wherein the state finding apparatus is attached to the tool in such a way as to be fixed onto an axis in the extending direction of the holding part of the tool.

8. The state finding apparatus according to claim 4, wherein the contact detection unit detects the contact between the tool and the second object based on a value of an angular velocity of the state finding apparatus around an axis which is approximately parallel to a surface of the tool, the surface including a hitting part to hit the second object, and approximately perpendicular to an extending direction of a holding part of the tool, the holding part being held by a user.

9. The state finding apparatus according to claim 1 further comprising:

a comparison unit which compares the state of the second object found by the finding unit with a predetermined state; and

a notifying unit which notifies a result of the comparison carried out by the comparison unit.

10. A state finding method using a state finding apparatus, the state finding method comprising:

an obtaining step of obtaining a value of an angular velocity of a first object around a predetermined axis of when the first object and a second object contact with each other; and

a finding step of finding a state of the second object based on the obtained value of the angular velocity.

11. A computer readable storage medium where a program is stored, the program making a computer function as:

an obtaining unit which obtains a value of an angular velocity of a first object around a predetermined axis of when the first object and a second object contact with each other; and

a finding unit which finds a state of the second object based on the obtained value of the angular velocity.