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.

Date of Patent:
May. 02, 2006

Filed:

Mar. 12, 2003
Applicants:

Hiroaki Seki, Ishikawa, JP;

Hiroshi Kakutani, Ishikawa, JP;

Mitsuyoshi Maekawa, Ishikawa, JP;

Sukeyasu Kanno, Ishikawa, JP;

Inventors:

Hiroaki Seki, Ishikawa, JP;

Hiroshi Kakutani, Ishikawa, JP;

Mitsuyoshi Maekawa, Ishikawa, JP;

Sukeyasu Kanno, Ishikawa, JP;

Assignees:

Kanazawa University, Kanazawa, JP;

Ishikawa Prefecture, Ishikawa, JP;

PFU Limited, Ishikawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An input device includes a magnet to be worn by a user on one fingertip of either a right hand or a left hand, a first magnetic sensor to be worn by the user on a wrist of either the right hand or the left hand to detect a magnetic field generated by the magnet at a corresponding position, a second magnetic sensor to be worn by the user on the same wrist on which the first magnetic sensor is worn and at a position that is farther from the magnet than the first magnetic sensor and eliminates effects of geomagnetism, and an output unit to output a difference between an output signal from the first magnetic sensor and an output signal from the second magnetic sensor.


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