公开(公告)号：US09692594B2

公开(公告)日：2017-06-27

申请号：US14876552

申请日：2015-10-06

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kotaro Hakoda ,  Katsuya Kosugi ,  Mitsuhiro Matsunaga ,  Nobuhiro Kambe ,  Teruo Kamiyama

IPC: H04L29/06 ,  H04L9/08 ,  G06F21/62

CPC classification number: H04L9/085 ,  G06F21/6245 ,  H04L63/0428

Abstract: An encryption method includes displaying encryption target data on a display screen as an image, performing first acceptance in which designation of an at least partial region of the displayed image is accepted, performing second acceptance in which designation regarding splitting of the designated at least partial region is accepted, and splitting data that is included in the encryption target data and corresponds to the designated at least partial region in accordance with the designation regarding the splitting under a secret sharing scheme.

公开(公告)号：US09866378B2

公开(公告)日：2018-01-09

申请号：US15617424

申请日：2017-06-08

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Kotaro Hakoda ,  Katsuya Kosugi ,  Mitsuhiro Matsunaga ,  Nobuhiro Kambe ,  Teruo Kamiyama

IPC: H04L29/06 ,  H04L9/08 ,  G06F21/62

CPC classification number: H04L9/085 ,  G06F21/6245 ,  H04L63/0428

Abstract: An encryption method includes displaying encryption target data on a display screen as an image, performing first acceptance in which designation of an at least partial region of the displayed image is accepted, performing second acceptance in which designation regarding splitting of the designated at least partial region is accepted, and splitting data that is included in the encryption target data and corresponds to the designated at least partial region in accordance with the designation regarding the splitting under a secret sharing scheme.

公开(公告)号：US10382219B2

公开(公告)日：2019-08-13

申请号：US15486380

申请日：2017-04-13

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takayuki Nishikawa ,  Mitsuhiro Matsunaga

IPC: H04W24/00 ,  H04L12/28 ,  H04W4/02

Abstract: A method for estimating an operator of multiple electrical devices installed in a building, includes receiving, from each of the multiple electrical devices, an operation log indicating that a corresponding electrical device was operated, the operation log including an ID of the corresponding to electrical device and a time at which the corresponding electrical device was operated; receiving first positional information indicating a current position of a terminal of a user; determining, in a case where a distance between the current position and a position of the building is a predetermined distance or less, that the user entered the building; and estimating that the first user is an operator of a first electrical device indicated by an first operation log corresponding to the time at which the first positional information was received, when it is determined that the first user entered the building from outside of the building.