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公开(公告)号：US20170316715A1
公开(公告)日：2017-11-02
申请号：US15499429
申请日：2017-04-27
Inventor： We Duke CHO , Kyeong Chan PARK , Sun Taag CHOE
IPC: G09B19/00
Abstract: Disclosed are a method and an apparatus for calculating a meal period, the method including: calculating, by a wrist acceleration calculating unit, a wrist acceleration variation value which is a variation value of acceleration in respect to a motion of a user's wrist which is measured based on gravitational acceleration; calculating, by a wrist angle calculating unit, a wrist angle variation value which is a variation value of an angle to the user's wrist based on a gravitational direction by using the wrist acceleration variation value; detecting, by an eating behavior candidate pattern detecting unit, an eating behavior candidate pattern based on a predetermined reference by applying one or more threshold values to the wrist angle variation value; and calculating, by a meal period calculating unit, a meal period based on the number of times the eating behavior candidate pattern occurs.
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公开(公告)号：US20180052892A1
公开(公告)日：2018-02-22
申请号：US15655430
申请日：2017-07-20
Inventor： We Duke CHO , Kyu Pil LEE , Sun Taag CHOE , Jong Ik LEE
IPC: G06F17/30
CPC classification number: G06F16/24575 , G06F16/24578 , G06F16/2477 , G06F16/258 , G16H10/60 , G16H40/63 , G16H50/70
Abstract: Disclosed are a method and an apparatus for calculating similarity of life log data, the method including: producing, by a life log data producing unit, a plurality of life log data on a daily basis, in which at least one estimated activity state is indicated for each predetermined time section, by matching a user's position information per time period and a user's motion state information per time period with an estimated activity table in which the user's estimated activity states are defined in advance; converting, by a modified life log data producing unit, the plurality of life logs data into a plurality of modified life log data which is indicated for each merged time section made by merging a preset number of continuous time sections; and calculating, by a similarity calculating unit, life log similarity among the plurality of modified life log data by comparing the plurality of modified life log data for each merged time section.
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公开(公告)号：US20170311845A1
公开(公告)日：2017-11-02
申请号：US15499483
申请日：2017-04-27
Inventor： We Duke CHO , Sun Taag CHOE
CPC classification number: A61B5/067 , A24F47/00 , A61B5/0816 , A61B5/11 , A61B5/1114 , A61B5/681 , A61B2562/0219 , A61B2562/04 , G01N29/4427 , G06F3/017
Abstract: Disclosed is a method of detecting a smoking behavior based on an acceleration sensor. A method of detecting a smoking behavior based on an acceleration sensor according to an exemplary embodiment of the present disclosure includes: calculating a wrist acceleration variation value which is a variation value of gravitational acceleration applied based on a gravitational direction with respect to a user's wrist in accordance with a motion of the user's wrist by using a three-axis acceleration sensor worn on the user's wrist; converting the wrist acceleration variation value into a wrist angle variation value which is a variation value of a wrist angle that indicates an angle to the user's wrist based on the gravitational direction; comparing at least one template signal made by modeling the variation value of the user's wrist angle corresponding to a smoking behavior with the wrist angle variation value; and detecting the user's smoking behavior based on the comparison result.
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