公开(公告)号：WO2021029966A1

公开(公告)日：2021-02-18

申请号：PCT/US2020/038569

申请日：2020-06-19

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： CALLAN, Casey Sean ,  KRISTJANSSON, Stefan Jon ,  NEVISTIC, Daniel Thomas ,  KARAVAEV, George ,  DEILY, Michael Francis ,  VOTH, David William ,  NAGAMPET, Srinivas Reddy

IPC: H02J50/40

Abstract: A device for inductively charging an electronic accessory includes a first portion, a second portion, and a spacer. The first portion includes a first transmission coil in a first plane where the first transmission coil is configured to generate a first magnetic field, and the second portion includes a first transmission coil in a second plane where the second transmission coil is configured to generate a second magnetic field. The spacer is positioned between the first transmission coil and the second transmission coil and between the first plane and the second plane. The spacer material magnetically insulates the second transmission coil from the first magnetic field.

公开(公告)号：WO2021067308A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053332

申请日：2020-09-29

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： PICCIOTTO, Carl Edward ,  NEVISTIC, Daniel Thomas ,  TO, Oscar Hochun ,  KUSHAN, Ibrahim Iskender ,  AUTIO, Henri Antero

IPC: H02J50/00 ,  H02J9/00 ,  G06F1/16 ,  G06F1/26 ,  G06F1/3215 ,  G06F1/3234 ,  H02J50/80 ,  H02J7/00

Abstract: A method of docking an accessory device includes, at the accessory device, receiving (324) a first transmission energy for wireless charging from an electronic device; in accordance with receiving the first transmission energy: setting (326) a timer, and entering (328) a docked mode; and exiting (330) the docked mode upon expiration of the timer.

公开(公告)号：WO2021066906A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/038575

申请日：2020-06-19

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： AUTIO, Henri Antero ,  KUSHAN, Ibrahim Iskender ,  PICCIOTTO, Carl Edward ,  NEVISTIC, Daniel Thomas ,  TO, Oscar Hochun

IPC: H02J7/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/80

Abstract: A method of adapting the charging of an accessory device includes transmitting a first transmission signal at a first transmission amplitude, measuring a receiving load of the first transmission signal, and if the charging device does not receive a response signal to the first transmission signal, transmitting a second transmission signal at a second transmission amplitude that is different from the first transmission amplitude.