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:
Sep. 29, 2015

Filed:

Jun. 20, 2012
Applicants:

Yasuo Morinaga, Chiyoda-ku, JP;

Masakatsu Tsukamoto, Chiyoda-ku, JP;

Manabu Ota, Chiyoda-ku, JP;

Takeshi Higuchi, Chiyoda-ku, JP;

Inventors:

Yasuo Morinaga, Chiyoda-ku, JP;

Masakatsu Tsukamoto, Chiyoda-ku, JP;

Manabu Ota, Chiyoda-ku, JP;

Takeshi Higuchi, Chiyoda-ku, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06K 9/00 (2006.01); G06F 3/01 (2006.01); G06F 1/16 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0414 (2013.01); G06F 3/017 (2013.01); G06K 9/00375 (2013.01); G06K 9/00382 (2013.01); G06F 1/1684 (2013.01); G06F 2203/04105 (2013.01);
Abstract

A mobile information terminal to determine whether a user's operation state is one-handed operation or two-handed operation. The mobile information terminal includes a pressure sensor array that acquires a gripping pressure distribution; a gripping pressure logger that records time-series changes in gripping pressure at each pressure sensor forming the pressure sensor array; a gripping pressure change point detection unit that includes a gripping pressure change amount calculation section that acquires time-series changes in gripping pressure at each pressure sensor and determines whether the amount of change in gripping pressure per unit time exceeds a predetermined value at any pressure sensor; and an operation state determination section that determines the operation state of the user of the mobile information terminal is one-handed operation when the amount of change in gripping pressure per unit time exceeds the predetermined value at any pressure sensor.


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