公开(公告)号：US20220268860A1

公开(公告)日：2022-08-25

申请号：US17624967

申请日：2020-07-29

Applicant: Google LLC

Inventor： Aditya Shailesh Ghadiali ,  William Alan Saperstein

IPC: G01R33/038 ,  G08B13/14 ,  G08B13/196

Abstract: An electronic device including a mounting device configured to couple to a surface, a head removably coupled to the mounting device and including a housing, a magnet attached to the mounting device, and a sensor disposed within the housing. The sensor detects a magnetic field associated with the magnet when the head is in a first position relative to the mounting device and detects the magnetic field associated with the magnet when the head is in a second position relative to the mounting device, the second position being different than the first position.

公开(公告)号：US20220149655A1

公开(公告)日：2022-05-12

申请号：US17581081

申请日：2022-01-21

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski ,  William Alan Saperstein

IPC: H02J50/00 ,  F24F11/30

Abstract: A device may include a rectifier circuit providing a rectified DC signal, a rechargeable energy-storage element, and a power-management integrated circuit (PMIC). The PMIC may include a charging circuit for the rechargeable energy-storage element; a current-sensing circuit that measures a current provided by the rectified DC signal; a programmable current limit; a voltage-sensing circuit that measures a voltage on the rechargeable energy-storage element; and a controller that regulates the current provided to a DC output of the PMIC. the DC output of the PMIC may be regulated based at least in part on the current provided by the rectified DC signal; the programmable current limit; and the voltage on the rechargeable energy-storage element. The DC output of the PMIC may provide energy to a plurality of other energy-consuming subsystems on the device and to the charging circuit for the rechargeable energy-storage element.

公开(公告)号：US20210021153A1

公开(公告)日：2021-01-21

申请号：US17030757

申请日：2020-09-24

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski ,  William Alan Saperstein

IPC: H02J50/00 ,  F24F11/30

Abstract: A device may include a rectifier circuit providing a rectified DC signal, a rechargeable energy-storage element, and a power-management integrated circuit (PMIC). The PMIC may include a charging circuit for the rechargeable energy-storage element; a current-sensing circuit that measures a current provided by the rectified DC signal; a programmable current limit; a voltage-sensing circuit that measures a voltage on the rechargeable energy-storage element; and a controller that regulates the current provided to a DC output of the PMIC. the DC output of the PMIC may be regulated based at least in part on the current provided by the rectified DC signal; the programmable current limit; and the voltage on the rechargeable energy-storage element. The DC output of the PMIC may provide energy to a plurality of other energy-consuming subsystems on the device and to the charging circuit for the rechargeable energy-storage element.