公开(公告)号：US10684633B2

公开(公告)日：2020-06-16

申请号：US15897757

申请日：2018-02-15

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Hugo Fiennes ,  Jonathan Alan Dutra ,  David Bell ,  Anthony Michael Fadell ,  Matthew Lee Rogers

IPC: G05D23/19 ,  F24D19/10 ,  F24F11/30 ,  H01R43/26 ,  F24F110/10 ,  F24F120/14 ,  F24F11/56 ,  F24F11/61

Abstract: A circuit includes a monitoring circuit that monitors a voltage and a switching circuit. Closing the switching circuit causes an external AC load to receive power from an external AC source. The circuit further includes a control circuit that opens the switching circuit for a time interval, where the time interval begins after the voltage is below a lower threshold. The control circuit also ends the time interval after the voltage exceeds an upper threshold, where the time interval is short enough that the operation of the AC load is not affected during the time interval. The circuit also includes a power harvesting circuit that harvests power from the external AC source to raise the voltage during the time interval.

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.

公开(公告)号：US10452083B2

公开(公告)日：2019-10-22

申请号：US15248725

申请日：2016-08-26

Applicant: GOOGLE LLC

Inventor： Daniel Adam Warren ,  Hugo B. Fiennes ,  Jonathan Alan Dutra ,  David Bell ,  Anthony Michael Fadell ,  Matthew Lee Rogers ,  Ian C. Smith ,  Edwin H. Satterthwaite, Jr. ,  Grant Michael Erickson ,  Andrea Mucignat ,  Joseph E. Palmer

IPC: G05D23/19 ,  F24F11/00 ,  F24D19/10 ,  F24F11/30 ,  F24F110/10 ,  F24F120/14 ,  F24F11/56 ,  F24F11/61

Abstract: A thermostat includes a plurality of HVAC (heating, ventilation, and air conditioning) wire connectors for receiving a plurality of HVAC control wires corresponding to an HVAC system. The thermostat also includes a thermostat processing and control circuit operative to at least partially control the operation of the HVAC system and a powering circuit coupled to the HVAC wire connectors and configured to provide an electrical load power to the thermostat processing and control circuit. The thermostat includes circuitry and methods for maximizing efficiency of energy harvested from the HVAC system connected to the thermostat, and depending on which system is connected to the thermostat, different power schemes can be implemented in order to obtain power from the HVAC system.

公开(公告)号：US20190148984A1

公开(公告)日：2019-05-16

申请号：US16107893

申请日：2018-08-21

Applicant: Google LLC

Inventor： Peter J. Bevelacqua ,  Jacobi Colton Grillo ,  Ryan Kristopher Green ,  Daniel Adam Warren ,  Brian Mitchell Silverstein

IPC: H02J50/23 ,  H02J50/27 ,  H04W52/04

Abstract: In aspects, indoor to outdoor wireless power delivery is described that provides continuous power through a building structure. A transmitter receives an indication of a required continuous power from a receiver, configures one or more settings to generate an electromagnetic field to transfer the required continuous power, and generates the electromagnetic field to transfer the required continuous power to the receiver. In other aspects of indoor to outdoor wireless power delivery, a transmitter and a receiver are aligned to provide continuous power through a building structure. The transmitter and the receiver enter an alignment mode, the transmitter produces an electromagnetic field to inductively transfer power to the receiver, and the receiver senses the electromagnetic field produced by the transmitter and provides an indication of an alignment of the transmitter and the receiver to a user of the system.

公开(公告)号：US10234879B2

公开(公告)日：2019-03-19

申请号：US15725995

申请日：2017-10-05

Applicant: Google LLC

Inventor： Eric Marschalkowski ,  Orville Buenaventura ,  Daniel Adam Warren

IPC: G08B21/00 ,  G05D23/19 ,  H02H11/00

Abstract: A thermostat may include one or more processors and heating, ventilation, and air conditioning (HVAC) wire connectors configured to receive HVAC wires from an HVAC system, including a call relay wire connector and a power return wire connector. The thermostat may also include an integrated circuit (IC) coupled to the one or more processors. The IC may include one or more solid-state switching elements for actuating at least one HVAC function through the call relay wire connector and the power return wire connector; a first input/output (I/O) pin coupled to the one or more solid-state switching elements; and a second I/O pin coupled to a substrate of the IC. The thermostat may further include a Schottky diode coupled between the first I/O pin and the second I/O pin, wherein the Schottky diode is external to the IC.

公开(公告)号：US10088189B2

公开(公告)日：2018-10-02

申请号：US15477991

申请日：2017-04-03

Applicant: Google LLC

Inventor： Brian J. Conner ,  Daniel Adam Warren ,  Orville Buenaventura ,  Michael Ayoubi ,  Edwin H. Satterthwaite

IPC: H02B1/24 ,  F24F11/00 ,  F24F11/30 ,  G01R31/00 ,  F24F11/62 ,  G01R21/06 ,  F24F11/32 ,  F24F11/58 ,  F24F11/52

Abstract: A smart-home device may include wire connectors that couple to an inductive power coil and a load, one or more solid-state switching elements having a first operating state in which they create a connection between the wire connectors and a second operating state in which the connection is interrupted. The smart-home device may cause the switching element(s) to operate in the first operating state to power the load; detect an anomaly from measurements from power monitoring circuitry; cause the switching element(s) to operate in the second operating state for at least a first time interval; and after the expiration of the first time interval, cause the one or more switching elements to operate in the first operating state and determine whether the anomaly is still present.

公开(公告)号：US20180136677A1

公开(公告)日：2018-05-17

申请号：US15725995

申请日：2017-10-05

Applicant: Google LLC

Inventor： Eric Marschalkowski ,  Orville Buenaventura ,  Daniel Adam Warren

IPC: G05D23/19

CPC classification number: G05D23/1917 ,  G05D23/1902 ,  H02H3/025 ,  H02H3/08 ,  H02H3/20

Abstract: A thermostat may include one or more processors and heating, ventilation, and air conditioning (HVAC) wire connectors configured to receive HVAC wires from an HVAC system, including a call relay wire connector and a power return wire connector. The thermostat may also include an integrated circuit (IC) coupled to the one or more processors. The IC may include one or more solid-state switching elements for actuating at least one HVAC function through the call relay wire connector and the power return wire connector; a first input/output (I/O) pin coupled to the one or more solid-state switching elements; and a second I/O pin coupled to a substrate of the IC. The thermostat may further include a Schottky diode coupled between the first I/O pin and the second I/O pin, wherein the Schottky diode is external to the IC.

公开(公告)号：US09953516B2

公开(公告)日：2018-04-24

申请号：US14717569

申请日：2015-05-20

Applicant: GOOGLE LLC

Inventor： Daniel Adam Warren ,  Lawrence Frederick Heyl ,  Edwin H. Satterthwaite, Jr. ,  Steven Clark ,  Dietrich Ho ,  Nicholas Unger Webb ,  Tyler Moore

IPC: G08B29/00 ,  G08B29/12 ,  G08B5/36 ,  G08B25/00

CPC classification number: G08B29/126 ,  G08B5/36 ,  G08B25/009

Abstract: Systems and methods for self-administering a sound test to verify operation of a speaker and/or alarm within a hazard detection system are described herein. The sound test can verify that the audible sources such as the alarm and speaker operate at the requisite loudness and frequencies. In addition, the sound test can be self-administered in that it does not require the presence of a person to initiate or verify that the audible sources are functioning properly.

公开(公告)号：US09935455B2

公开(公告)日：2018-04-03

申请号：US14106544

申请日：2013-12-13

Applicant: Google LLC

Inventor： Daniel Adam Warren ,  Brian J. Conner ,  Ian C. Smith

IPC: H02H7/20 ,  H05B1/02 ,  G05D23/19 ,  F24D19/10 ,  G01R31/07 ,  H01H85/02 ,  H01H85/32 ,  F24D5/02 ,  F24D5/12

CPC classification number: H02H7/20 ,  F24D5/02 ,  F24D5/12 ,  F24D19/1009 ,  G01R31/07 ,  G05D23/19 ,  G05D23/1902 ,  H01H85/0241 ,  H01H85/32 ,  H01H2300/03 ,  H05B1/0205 ,  Y02B90/224 ,  Y04S20/14

Abstract: A method of automated sensing of an electrical anomaly associated with a thermostat may include switching a switching circuit within the thermostat to an on state. The switching circuit may be configured to activate an HVAC function when switched to the on state. The method may also include monitoring one or more electrical properties associated with the switching circuit. The method may additionally include determining if an electrical anomaly is associated with the switching circuit based at least in part on the monitored one or more electrical properties. The method may further include switching the switching circuit to an off state if an electrical anomaly is detected.