公开(公告)号：US20220237993A1

公开(公告)日：2022-07-28

申请号：US17156438

申请日：2021-01-22

Applicant: GOOGLE LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski ,  Brian Conner

IPC: G08B3/00 ,  H03K17/0812

Abstract: A doorbell chime bypass circuit includes a first node, a second node, and a bi-directional FET switch in series with the first node and the second current node. The bi-directional FET switch includes a first FET and a second FET in series, and is configured to cease conducting current between the first and second nodes when gate voltages of the first and second FETs are below a cut-off threshold. The bypass circuit further includes a sensing circuit configured to determine a level of current flowing through the bi-directional FET switch, and a switch controller configured to set the gate voltages of the first and second FETs to a level below the cut-off threshold when the sensing circuit senses that the level of current meets a doorbell press current threshold, causing the bi-directional FET switch to cease conducting current between the first and second nodes.

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：US20210249900A1

公开(公告)日：2021-08-12

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

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：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.

公开(公告)号：US11645894B2

公开(公告)日：2023-05-09

申请号：US17156438

申请日：2021-01-22

Applicant: GOOGLE LLC

Inventor： Daniel Adam Warren ,  Eric Marschalkowski ,  Brian Conner

IPC: G08B3/10 ,  H03K17/082 ,  H03K17/10 ,  H03K17/12 ,  H03K17/08

CPC classification number: G08B3/10 ,  H03K17/0822 ,  H03K17/102 ,  H03K17/122 ,  H03K2017/0806

Abstract: A doorbell chime bypass circuit includes a first node, a second node, and a bi-directional FET switch in series with the first node and the second current node. The bi-directional FET switch includes a first FET and a second FET in series, and is configured to cease conducting current between the first and second nodes when gate voltages of the first and second FETs are below a cut-off threshold. The bypass circuit further includes a sensing circuit configured to determine a level of current flowing through the bi-directional FET switch, and a switch controller configured to set the gate voltages of the first and second FETs to a level below the cut-off threshold when the sensing circuit senses that the level of current meets a doorbell press current threshold, causing the bi-directional FET switch to cease conducting current between the first and second nodes.

公开(公告)号：US11272335B2

公开(公告)日：2022-03-08

申请号：US17002655

申请日：2020-08-25

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：US10819148B2

公开(公告)日：2020-10-27

申请号：US15680632

申请日：2017-08-18

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 smart-home device may include an energy-storage element that stores energy that is harvested from an environmental system and a solid state relay (SSR) switching integrated circuit (IC). The SSR switching IC may include switching elements that operate in a first state and a second state. The IC may also include a control circuit that causes the switching elements to operate in the first state to activate a function of the environmental system until the energy-storage element has dropped below a threshold. The control circuit may also cause the switching elements to operate in the second state and harvest energy from the environmental system, determine that a first time has elapsed since the switching elements began operating in the second state, and cause the one or more switching elements to again operate in the first state.

公开(公告)号：US10798539B2

公开(公告)日：2020-10-06

申请号：US15485127

申请日：2017-04-11

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 a plurality of electronic devices within a home. In one aspect, a method is performed at a computing system having one or more processors and memory. The method includes: (1) obtaining device identification information for a plurality of electronic devices; (2) broadcasting, via a standard wireless communication protocol, a request based on the device identification information that a particular electronic device of the plurality of electronic devices be enabled to transmit or reflect location information using a radar technique; (3) receiving a signal from the particular electronic device, the signal indicating a location of the particular electronic device using a radar technique; and (4) determining the location of the particular electronic device based on the received signal.

公开(公告)号：US10557640B2

公开(公告)日：2020-02-11

申请号：US15680670

申请日：2017-08-18

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

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, and temperature data originating from the SSR switching IC and transmits the voltage, current, and temperature data to a device management server. The device management server may receive batches of voltage, current, and temperature data from a plurality of smart-home devices.

公开(公告)号：US20190384334A1

公开(公告)日：2019-12-19

申请号：US16010271

申请日：2018-06-15

Applicant: Google LLC

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

IPC: G05F1/56 ,  H02J7/00 ,  H02M7/06 ,  H02M7/219 ,  G06F1/26

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.