公开(公告)号：US20240258805A1

公开(公告)日：2024-08-01

申请号：US18564466

申请日：2022-12-14

Applicant: Google LLC

Inventor： David Wang ,  Arun Prakash Raghupathy ,  Chang Hong Ye ,  Ford Rylander

IPC: H02J7/00

CPC classification number: H02J7/00309 ,  H02J7/00034 ,  H02J7/0048 ,  H02J7/007194 ,  H02J2310/22 ,  H02J2310/62

Abstract: The present document describes techniques for safe battery charging during high ambient temperatures. These techniques extend device runtime during peak use periods when ambient temperature is high by increasing the possibility for battery charging during high ambient temperature conditions. In an example, a device, during high ambient temperatures, checks future ambient temperatures over a network to identify if the minimum future ambient temperature over a block of time within the next N number of days is predicted to be sufficiently low that, when combined with device-performance throttling, is estimated to reduce the temperature of the battery to below the maximum charge temperature to enable the battery to be safely charged. The device can also use the future ambient temperatures to budget current battery usage by implementing and/or adjusting device-performance throttling.

公开(公告)号：US20240205682A1

公开(公告)日：2024-06-20

申请号：US18595262

申请日：2024-03-04

Applicant: GOOGLE LLC

Inventor： Jay Akkad ,  Nikhil Rao ,  Anshul Gupta ,  David Wang ,  Ian Baker ,  Neil Dhillon

IPC: H04W12/30 ,  G06F9/54 ,  G06F16/18 ,  G06F16/22 ,  G06F16/957 ,  G06F16/958 ,  G06F21/62 ,  G06F21/64 ,  G06F40/226 ,  H04L9/40 ,  H04L67/01 ,  H04L67/02 ,  H04L67/568 ,  H04W12/03 ,  H04W12/08

CPC classification number: H04W12/35 ,  G06F9/54 ,  G06F9/541 ,  G06F16/1865 ,  G06F16/22 ,  G06F16/957 ,  G06F16/958 ,  G06F21/6209 ,  G06F21/6218 ,  G06F21/64 ,  G06F40/226 ,  H04L63/0281 ,  H04L67/01 ,  H04L67/02 ,  H04W12/03 ,  H04W12/08 ,  H04L67/568

Abstract: Secure communication in mobile digital pages is provided. The system receives an electronic document and validates the electronic document for storage in a cache server. The system receives a request for the electronic document and provides it to a viewer component on a client computing device. The viewer component loads the electronic document in an iframe. The viewer component executes a runtime component to receive, via a secure communication channel, a tag from the electronic document. The system receives the tag and selects a data value for transmission to the viewer component. The viewer components provides the data value to cause the runtime component to execute an action with the data value.

公开(公告)号：US11901751B2

公开(公告)日：2024-02-13

申请号：US17319815

申请日：2021-05-13

Applicant: Google LLC

Inventor： Michael Jonathon Chen ,  William Alan Saperstein ,  James Robert Lim ,  David Wang

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00

CPC classification number: H02J7/00308 ,  H02J7/0031 ,  H02J7/00302 ,  H02J7/007182

Abstract: An indexed sequence of bits in a buffer is allocated for tracking a battery charging state. The indexed sequence of bits has a first number of bits. A battery voltage of a rechargeable battery is sampled at a sampling rate. For each sampled battery voltage, the battery voltage is compared with a voltage threshold. A next bit position in the indexed sequence of bits is identified. In accordance with a determination that a comparison result is true, a predefined first value is added to the next bit position. A second number of bits that are filled with the predefined first value is determined. A ratio between the second number and the first number is also determined. In accordance with a determination that the ratio exceeds a threshold step-down ratio, a battery charge voltage is stepped down. The rechargeable battery is charged to a step-down voltage.

公开(公告)号：US20230246470A1

公开(公告)日：2023-08-03

申请号：US18159553

申请日：2023-01-25

Applicant: Google LLC

Inventor： James Robert Lim ,  David Wang ,  Haoxing Zhang ,  Shang Shi

IPC: H02J7/00 ,  G01R19/165 ,  G01R31/3835

CPC classification number: H02J7/007182 ,  H02J7/0029 ,  G01R19/16542 ,  G01R31/3835

Abstract: The present document describes battery zero-voltage (0V) detection methodologies and applications thereof. These techniques detect the occurrence of the 0V condition and enable the device to continue operation after one 0V condition. These techniques may, however, shut down the device after detecting a second occurrence of the 0V condition of the battery. In an aspect, a combination of hardware and software is used at a system side of a device, when the device is connected to an external power source, to detect a 0V condition and/or distinguish the 0V condition from an undervoltage-protection (UVP) condition.

公开(公告)号：US11637434B2

公开(公告)日：2023-04-25

申请号：US17222230

申请日：2021-04-05

Applicant: Google LLC

Inventor： James Robert Lim ,  David Wang ,  Bonnie Yip ,  Haoxing Zhang

IPC: H02J7/00 ,  H01M10/42 ,  H02H7/18

Abstract: This application is directed to a battery protection system including a sense resistor, a comparator, a switching component, and a protection integrated circuit (PIC). The sense resistor is electrically coupled in series with one of a plurality of rechargeable battery cells that are coupled in parallel in a battery. The comparator is coupled to the sense resistor and configured to compare a voltage drop across the sense resistor with a reference voltage to determine whether a subset of the rechargeable battery cells is not charging in the battery. The switching component is coupled to the battery, while the PIC is coupled to the comparator and the switching component. The PIC is configured to control charging and discharging of the battery including disabling the battery from being charged in accordance with a determination that a subset of the rechargeable battery cells is not charging in the battery.

公开(公告)号：US20220102691A1

公开(公告)日：2022-03-31

申请号：US17032685

申请日：2020-09-25

Applicant: Google LLC

Inventor： David Wang ,  Lauren Francine Chanen ,  James Robert Lim ,  Neha Ravi Dixit ,  Alexander P. Wroblewski

IPC: H01M2/10 ,  H01M2/02

Abstract: A battery pack includes a battery, an outer enclosure housing the battery to form a battery pack, and an expandable portion extending from the outer enclosure and allowing the battery pack to expand along an X-axis of the battery pack. The expandable portion includes an inner portion, an outer portion, and a gap portion between the inner portion and the outer portion. The inner portion and the outer portion have a sealing layer to seal off an interior space and the gap portion is devoid of the sealing layer. The sealing layer allows for fluid communication between the gap portion and the interior space when a pressure exerted on the sealing layer exceeds a pressure threshold. The expandable portion includes folds allowing the expandable portion to fold toward the battery pack in an initial folded configuration and expand away from the battery pack in an at least partially unfolded configuration.

公开(公告)号：US20220099606A1

公开(公告)日：2022-03-31

申请号：US17032679

申请日：2020-09-25

Applicant: Google LLC

Inventor： David Wang ,  Arun Raghupathy ,  James Robert Lim ,  Ihab A. Ali ,  Chang Hong Ye

IPC: G01N25/72 ,  G01R31/392 ,  G01R31/371

Abstract: A battery pack includes a battery, a first temperature sensor configured to provide a first temperature value associated with a temperature of the battery, a heat source disposed proximate to the battery and configured to heat the battery, a second temperature sensor configured to provide a second temperature value associated with a temperature of the heat source, and a control board coupled to the first temperature sensor and the second temperature sensor, wherein the control board is configured to receive the first temperature value and the second temperature value. The control board is configured to compare the first temperature value and the second temperature value to determine a temperature gradient between the battery and the heat source and transmit an alert if the temperature gradient exceeds a first temperature gradient threshold.

公开(公告)号：US20210279412A1

公开(公告)日：2021-09-09

申请号：US17327261

申请日：2021-05-21

Applicant: Google LLC

Inventor： David Wang ,  Ulas Kirazci ,  Joshua Richard Williams

IPC: G06F40/174 ,  G06F40/30 ,  G06F40/221 ,  G06F40/274 ,  G06F16/958

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for facilitating input by a user into a form. In one aspect, a method include actions of obtaining a web resource that includes a form, determining a particular field of the form has been selected, determining an intent that corresponds to the form from a first semantic tag in the web resource, determining a parameter of the intent that corresponds to the particular field of the form from a second semantic tag in the web resource, determining a value to suggest for the particular field based at least on the intent and the parameter of the intent, and providing the value for output as a suggestion of input for the particular field.

公开(公告)号：US20190205368A1

公开(公告)日：2019-07-04

申请号：US15858586

申请日：2017-12-29

Applicant: Google LLC

Inventor： David Wang ,  Ulas Kirazci ,  Joshua Richard Williams

IPC: G06F17/24 ,  G06F17/30 ,  G06F17/27

CPC classification number: G06F17/243 ,  G06F16/986 ,  G06F17/272 ,  G06F17/276 ,  G06F17/2785

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for facilitating input by a user into a form. In one aspect, a method include actions of obtaining a web resource that includes a form, determining a particular field of the form has been selected, determining an intent that corresponds to the form from a first semantic tag in the web resource, determining a parameter of the intent that corresponds to the particular field of the form from a second semantic tag in the web resource, determining a value to suggest for the particular field based at least on the intent and the parameter of the intent, and providing the value for output as a suggestion of input for the particular field.

公开(公告)号：US20240353361A1

公开(公告)日：2024-10-24

申请号：US18758223

申请日：2024-06-28

Applicant: Google LLC

Inventor： David Wang ,  Arun Raghupathy ,  James Robert Lim ,  Ihab A. Ali ,  Chang Hong Ye

IPC: G01N25/72 ,  G01R31/371 ,  G01R31/392 ,  H01M10/615 ,  H01M10/63

CPC classification number: G01N25/72 ,  G01R31/371 ,  G01R31/392 ,  H01M10/615 ,  H01M10/63

Abstract: A battery pack includes a battery, a first temperature sensor configured to provide a first temperature value associated with a temperature of the battery, a heat source disposed proximate to the battery and configured to heat the battery, a second temperature sensor configured to provide a second temperature value associated with a temperature of the heat source, and a control board coupled to the first temperature sensor and the second temperature sensor, wherein the control board is configured to receive the first temperature value and the second temperature value. The control board is configured to compare the first temperature value and the second temperature value to determine a temperature gradient between the battery and the heat source and transmit an alert if the temperature gradient exceeds a first temperature gradient threshold.