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.:

US 9327177 B1

PDF
Full Text
Expired
Date of Patent:
May. 03, 2016

Filed:

Jul. 02, 2012
Applicants:

Yosuke Yamamoto, Kobe, JP;

Hironori Takihara, Kobe, JP;

Kuniyasu Horiuchi, Kobe, JP;

Inventors:

Yosuke Yamamoto, Kobe, JP;

Hironori Takihara, Kobe, JP;

Kuniyasu Horiuchi, Kobe, JP;

Assignee:

DUNLOP SPORTS CO. LTD., Kobe-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 69/00 (2006.01); A63B 69/38 (2006.01); A63B 59/00 (2015.01); A63B 59/04 (2006.01); A63B 49/00 (2015.01); A63B 49/02 (2015.01); A63B 49/16 (2006.01);
U.S. Cl.
CPC ...
A63B 69/38 (2013.01);
Abstract

A swing analyzing apparatus includes: a three-axis acceleration sensor attached to a tennis racket, for measuring accelerations in the directions of three axes when a swing for hitting a tennis ball is taken with the tennis racket; a three-axis gyro sensor attached to the tennis racket, for measuring angular speeds about the three axes; and an analyzing device. The analyzing device has a receiving function to receive data regarding the accelerations and the angular speeds from the three-axis acceleration sensor and the three-axis gyro sensor; a coordinate axis conversion function to convert relative coordinate axes that are the three axes for the accelerations into absolute coordinate axes on the basis of the angular speeds; and a calculation function to calculate an index of the swing on the basis of accelerations resulting from the coordinate axis conversion.


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Yamamoto, Yosuke. (2016). Tennis swing analysis method (U.S. Patent No. 9327177). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9327177

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