公开(公告)号：US20130131521A1

公开(公告)日：2013-05-23

申请号：US13716964

申请日：2012-12-17

Applicant: PANASONIC CORPORATION

Inventor： Mototaka YOSHIOKA ,  Jun OZAWA

IPC: A61B5/0205 ,  A61B5/026

CPC classification number: A61B5/0205 ,  A61B5/026 ,  A61B5/14551 ,  A61B5/165 ,  A61B5/4064

Abstract: A concentration presence/absence determining device includes: a brain blood flow volume obtaining unit configured to obtain a brain blood flow volume of the user; a varying threshold obtaining unit configured to obtain a varying threshold that is a value smaller than the brain blood flow volume of the user at a base time; and an determining unit configured to determine that the user concentrates, when the brain blood flow volume obtained by the brain blood flow volume obtaining unit falls below the varying threshold obtained by the varying threshold obtaining unit.

Abstract translation: 浓度存在/不存在确定装置包括：脑血流量获取单元，被配置为获得用户的脑血流量; 变化阈值获取单元，被配置为获得在基准时刻小于所述用户的脑血流量的值的变化阈值; 以及确定单元，被配置为当由脑血流量获取单元获得的脑血流量低于由变化阈值获取单元获得的变化阈值时，用户集中精力。