公开(公告)号：US11264833B2

公开(公告)日：2022-03-01

申请号：US17030757

申请日：2020-09-24

Applicant: Google LLC

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

IPC: F24F11/30 ,  H02J50/00 ,  H02M7/06 ,  H02J7/00 ,  F24F110/10 ,  H02J50/10

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：US10992175B2

公开(公告)日：2021-04-27

申请号：US16010271

申请日：2018-06-15

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski ,  Nathan Lentz ,  Timothy Lai

IPC: H02J13/00 ,  H02J1/06 ,  G05F1/614

Abstract: A circuit for stealing power from an external system without interfering with a communication protocol includes a plurality of wiring connectors configured to receive a plurality of wires, where the plurality of wiring connectors receive a plurality of current levels set by the external system according to the communication protocol; a first voltage regulator to regulate a voltage on the plurality of wiring connectors at a plurality of voltage levels according to the communication protocol; a current monitor to measure the plurality of current levels received through the plurality of wiring connectors; a second voltage regulator that provides a current-limiting output; and a power converter that optimizes an amount of power stolen from the plurality of wiring connectors based on the current-limiting output.

公开(公告)号：US10816231B2

公开(公告)日：2020-10-27

申请号：US16736255

申请日：2020-01-07

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski

IPC: F24F11/30 ,  G01R19/165 ,  G05B15/02 ,  F24F11/62 ,  H04L12/28 ,  F24F140/50 ,  F24F11/52 ,  F24F11/58 ,  F24F110/10 ,  F24F11/32 ,  G01R31/327

Abstract: A smart-home device may include a solid state relay (SSR) switching integrated circuit (IC). SSR switching IC may include switching elements configured to open and close a connection between a power wire and a return wire of an environmental system; a voltage sensor that measures a voltage across the one or more switching elements; a current sensor that measures a current through the one or more switching elements; and a temperature sensor that measures a temperature near the one or more switching elements. The smart-home device may also include a wireless communication device that periodically receives voltage, current, or temperature data originating from the SSR switching IC and transmits the voltage, current, or temperature data to a device management server. The device management server may receive batches of voltage, current, or temperature data from a plurality of smart-home devices.

公开(公告)号：US20200233079A1

公开(公告)日：2020-07-23

申请号：US16842232

申请日：2020-04-07

Applicant: GOOGLE LLC

Inventor： Brian Silverstein ,  Eric Marschalkowski ,  Eden Sherry ,  Andrew Goldenson

IPC: G01S13/88 ,  G01S13/87 ,  G01S13/86 ,  G01S7/00 ,  G01S13/56 ,  G01S7/41 ,  G01S13/06 ,  G01S13/52 ,  G08B21/18 ,  H04B1/3827 ,  H04L12/28

Abstract: An electronic device includes an image sensor having a field of view, a radar module, one or more processors, and memory. The electronic device captures image data of a scene that is within the field of view of the image sensor. The electronic device receives radar signals from one or more objects in the scene. The device determines respective location and/or movement of the one or more objects based on the radar signals. It further identifies a first object of the one or more objects based on a combination of the image data and the radar signals.

公开(公告)号：US20200141599A1

公开(公告)日：2020-05-07

申请号：US16736255

申请日：2020-01-07

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski

IPC: F24F11/30 ,  F24F11/62 ,  G05B15/02 ,  G01R19/165

Abstract: A smart-home device may include a solid state relay (SSR) switching integrated circuit (IC). SSR switching IC may include switching elements configured to open and close a connection between a power wire and a return wire of an environmental system; a voltage sensor that measures a voltage across the one or more switching elements; a current sensor that measures a current through the one or more switching elements; and a temperature sensor that measures a temperature near the one or more switching elements. The smart-home device may also include a wireless communication device that periodically receives voltage, current, or temperature data originating from the SSR switching IC and transmits the voltage, current, or temperature data to a device management server. The device management server may receive batches of voltage, current, or temperature data from a plurality of smart-home devices.

公开(公告)号：US12262289B2

公开(公告)日：2025-03-25

申请号：US17584653

申请日：2022-01-26

Applicant: Google LLC

Inventor： Eric Marschalkowski ,  Brian Silverstein ,  Eden Sherry ,  Andrew Goldenson

IPC: H04W4/33 ,  G01S7/00 ,  G01S13/42 ,  G01S13/56 ,  G01S13/58 ,  G01S13/86 ,  G01S13/87 ,  G01S13/88 ,  H04W4/029 ,  H04W8/00

Abstract: The various implementations described herein include methods, devices, and systems for determining locations of an electronic device. In one aspect, a method is performed at a computing system having one or more processors and memory. The method includes obtaining device identification information for the electronic device; broadcasting a request based on the device identification information that the electronic device be enabled to transmit or reflect location information using a radar technique; receiving a signal from the electronic device, the signal indicating a location of the electronic device using a radar technique; and determining the location of the electronic device based on the received signal.

公开(公告)号：US11802713B2

公开(公告)日：2023-10-31

申请号：US17581081

申请日：2022-01-21

Applicant: Google LLC

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

IPC: F24F11/88 ,  F24F11/30 ,  H02J50/00 ,  H02M7/06 ,  F24F110/10 ,  H02J50/10

CPC classification number: F24F11/88 ,  F24F11/30 ,  H02J50/001 ,  F24F2110/10 ,  H02J50/10 ,  H02M7/06

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：US11664679B2

公开(公告)日：2023-05-30

申请号：US17241020

申请日：2021-04-26

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski ,  Nathan Lentz ,  Timothy Lai

IPC: H02J13/00 ,  H02J1/06 ,  G05F1/614 ,  H02J3/14

CPC classification number: H02J13/00016 ,  H02J1/06 ,  H02J3/14 ,  H02J13/00004 ,  G05F1/614 ,  H02J2310/14

Abstract: A circuit for stealing power from an external system without interfering with a communication protocol may include wiring connectors configured to receive wires from the external system; a first voltage regulator to regulate a voltage on the plurality of wiring connectors at a plurality of voltage levels to encode a first multi-bit binary message according to the communication protocol to be sent to the external system; a current monitor to measure a plurality of current levels received through the plurality of wiring connectors and decode the plurality of current levels to determine a second multi-bit binary message sent from the external system according to the communication protocol; and a power converter that adjusts an amount of power stolen from the plurality of wiring connectors based at least in part on the voltage on the plurality of wiring connectors.

公开(公告)号：US20220225063A1

公开(公告)日：2022-07-14

申请号：US17584653

申请日：2022-01-26

Applicant: Google LLC

Inventor： Eric Marschalkowski ,  Brian Silverstein ,  Eden Sherry ,  Andrew Goldenson

IPC: H04W4/33 ,  G01S13/56 ,  G01S13/88 ,  H04W4/029 ,  G01S7/00 ,  G01S13/42 ,  G01S13/58 ,  G01S13/86 ,  G01S13/87 ,  H04W8/00

Abstract: The various implementations described herein include methods, devices, and systems for determining locations of an electronic device. In one aspect, a method is performed at a computing system having one or more processors and memory. The method includes obtaining device identification information for the electronic device; broadcasting a request based on the device identification information that the electronic device be enabled to transmit or reflect location information using a radar technique; receiving a signal from the electronic device, the signal indicating a location of the electronic device using a radar technique; and determining the location of the electronic device based on the received signal.

公开(公告)号：US10241526B2

公开(公告)日：2019-03-26

申请号：US15349809

申请日：2016-11-11

Applicant: Google LLC

Inventor： Eric Marschalkowski ,  Orville Buenaventura ,  Daniel Adam Warren

IPC: G05D23/19 ,  G01R19/15 ,  H02H3/00 ,  H02H3/06 ,  H02M1/08

Abstract: A thermostat may include HVAC wire connectors that receive a call relay wire and a power return wire, switching elements having a first operating state in which they create a connection between the call relay wire and the power return wire and a second operating state in which the connection between the call relay wire and the power return wire is interrupted. The thermostat may also include control circuitry configured to cause the switching elements to operate in the first operating state to actuate an HVAC function; detect an anomaly associated with measurements from power monitoring circuitry; cause the switching elements to continue to operate in the first operating state until a zero-crossing is detected; and then cause the one or more switching elements to operate in the second operating state.