公开(公告)号：US20170339772A1

公开(公告)日：2017-11-23

申请号：US15596353

申请日：2017-05-16

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hajime OZAKI ,  Tatsumi SETOMOTO ,  Tamotsu ANDO ,  Tomokazu YAMAMOTO ,  Kazuhiro MATSUMOTO ,  Yusuke TAJIMA

IPC: H05B37/02 ,  H05B33/08 ,  F21V15/01

CPC classification number: H05B37/0272 ,  F21S8/026 ,  F21V15/01 ,  F21V23/023 ,  F21V23/026 ,  F21V23/045 ,  F21Y2115/10 ,  H05B33/0842

Abstract: A light driving apparatus which supplies power to a light source in accordance with an indication from a control apparatus includes: a housing which is box-shaped; a wireless communication module which is housed in the housing, and includes an antenna for wireless communication with the control apparatus; and a light driver which is housed in the housing, and supplies power to the light source in accordance with the indication received from the control apparatus via the wireless communication module, wherein the housing includes two opposite faces having slits through which an electromagnetic wave which the antenna emits when excited by the wireless communication module passes, the slits extending in a direction three-dimensionally crossing a direction in which the wireless communication module excites the antenna.

公开(公告)号：US20220397636A1

公开(公告)日：2022-12-15

申请号：US17624427

申请日：2020-06-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yanfeng WANG ,  Nobuyuki SHIBANO ,  Yan RONG ,  Masayuki AMANO ,  Mari NAKANISHI ,  Kazuhiro MATSUMOTO ,  Chihiro TERAYAMA

IPC: G01S5/02

Abstract: A first estimation unit estimates, based on pieces of information on the reception strength acquired by an acquisition unit in a first time period, a location of a transmitter. A first determination unit determines, based on the location of the transmitter estimated by the first estimation unit, an area in which the transmitter is present. A second estimation unit estimates, based on pieces of information on the reception strength acquired in a second time period, the location of the transmitter. A second determination unit determines, based on the location of the transmitter estimated by the second estimation unit, the area in which the transmitter is present. A correction unit corrects, when a determination result by the first determination unit is different from a determination result by the second determination unit, the determination result by the first determination unit to the determination result by the second determination unit.

公开(公告)号：US20220179037A1

公开(公告)日：2022-06-09

申请号：US17604424

申请日：2020-02-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yanfeng WANG ,  Masayuki AMANO ,  Nobuyuki SHIBANO ,  Yan RONG ,  Mari NAKANISHI ,  Kazuhiro MATSUMOTO ,  Chihiro TERAYAMA

IPC: G01S5/14 ,  G01S5/02

Abstract: An area determination system includes a decision unit, a calculation unit, and a determination unit. The decision unit decides, based on a strength of a radio signal transmitted from a transmitter and received by a receiver, a location of the transmitter. The calculation unit calculates a presence determination value. The presence determination value is based on a number of times that the location of the transmitter is determined to be in a presence determination region during a presence determination time period. The presence determination region corresponds to a target area. The determination unit, when a presence condition is satisfied, determine that the transmitter is in the target area. The presence condition is that a state where the presence determination value is greater than or equal to a presence threshold continues for a presence determination time.