Patents by Inventor Haoxing Zhang

Haoxing Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240313268
    Abstract: The present document describes techniques associated with right-to-repair battery-replacement methodologies and applications thereof. These techniques include detecting a replacement battery in an electronic device (a new battery or the same battery reinstalled), authenticating the replacement battery, and monitoring battery characterization and health of the replacement battery. Using these techniques fulfills sustainability and right-to-repair options, aligning with customer rights and government regulations. Further, these techniques enable replacement of an embedded battery in a user's device and detection that the replacement battery was installed and is safe for use by the device. A battery health monitor may be implemented on the device to monitor the health of the replacement battery. In some aspects, the battery health monitor may be a subscription-based service implemented via an application executed on the device or via a system-level application.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 19, 2024
    Applicant: Google LLC
    Inventors: James Robert Lim, Shang Shi, Haoxing Zhang, Kelly Jitsuo Tsudama
  • Patent number: 12051926
    Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: July 30, 2024
    Assignee: Google LLC
    Inventors: James Robert Lim, Haoxing Zhang, David Wang, Dietrich Shing-Quan Ho, Yuanyuan Song
  • Patent number: 11934285
    Abstract: An accessory interface for an electronic host device includes a digital communication bus including a plurality of communication lines configured to pass data between the electronic host device and an electronic accessory device. The accessory interface further includes detection circuitry selectively coupled to the plurality of communication lines via a multiplexer and configured to detect analog voltage levels across the plurality of communication lines, determine a device type of the electronic accessory device based on the detected analog voltage levels, and control the multiplexer to couple the plurality of communication lines to a host processor of the electronic host device upon determining the device type of the electronic accessory device. The host processor is configured to receive the device type of the electronic accessory device and transmit data via the plurality of communication lines to the electronic accessory device in accordance with the device type of the electronic accessory device.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: March 19, 2024
    Assignee: Google LLC
    Inventors: Haoxing Zhang, Dietrich Shing-Quan Ho, Hung-Yang Lee, William Saperstein
  • Publication number: 20230246470
    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.
    Type: Application
    Filed: January 25, 2023
    Publication date: August 3, 2023
    Applicant: Google LLC
    Inventors: James Robert Lim, David Wang, Haoxing Zhang, Shang Shi
  • Patent number: 11689033
    Abstract: This application is directed to protecting a battery or battery by a battery protection system including two distinct protection integrated circuits (PICs). The two PICs are configured to determine whether a drive current of the battery is at fault and generate distinct switching signals indicating whether the drive current of the battery is at fault. The two PICs are interchangeable with each other. The battery protection system further includes control logic and two switching components. The control logic is configured to combine the switching signals provided by the two PICs to provide a combined switching signal. Each switching component is coupled to the control logic and configured to control a current path of charging and discharging the battery based on the combined switching signal.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: June 27, 2023
    Assignee: Google LLC
    Inventors: Haoxing Zhang, David Wang, James Robert Lim, Dietrich Shing-Quan Ho
  • Patent number: 11637434
    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.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: April 25, 2023
    Assignee: Google LLC
    Inventors: James Robert Lim, David Wang, Bonnie Yip, Haoxing Zhang
  • Publication number: 20230066939
    Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.
    Type: Application
    Filed: October 18, 2022
    Publication date: March 2, 2023
    Applicant: Google LLC
    Inventors: James Robert Lim, Haoxing Zhang, David Wang, Dietrich Shing-Quan Ho, Yuanyuan Song
  • Patent number: 11482872
    Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: October 25, 2022
    Assignee: Google LLC
    Inventors: James Robert Lim, Haoxing Zhang, David Wang, Dietrich Shing-Quan Ho, Yuanyuan Song
  • Publication number: 20220232154
    Abstract: An accessory interface for an electronic host device includes a digital communication bus including a plurality of communication lines configured to pass data between the electronic host device and an electronic accessory device. The accessory interface further includes detection circuitry selectively coupled to the plurality of communication lines via a multiplexer and configured to detect analog voltage levels across the plurality of communication lines, determine a device type of the electronic accessory device based on the detected analog voltage levels, and control the multiplexer to couple the plurality of communication lines to a host processor of the electronic host device upon determining the device type of the electronic accessory device. The host processor is configured to receive the device type of the electronic accessory device and transmit data via the plurality of communication lines to the electronic accessory device in accordance with the device type of the electronic accessory device.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 21, 2022
    Applicant: Google LLC
    Inventors: Haoxing Zhang, Dietrich Shing-Quan Ho, Hung-Yang Lee, William Saperstein
  • Publication number: 20220224128
    Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 14, 2022
    Inventors: James Robert Lim, Haoxing Zhang, David Wang, Dietrich Shing-Quan Ho, Yuanyuan Song
  • Publication number: 20210376623
    Abstract: This application is directed to protecting a battery or battery by a battery protection system including two distinct protection integrated circuits (PICs). The two PICs are configured to determine whether a drive current of the battery is at fault and generate distinct switching signals indicating whether the drive current of the battery is at fault. The two PICs are interchangeable with each other. The battery protection system further includes control logic and two switching components. The control logic is configured to combine the switching signals provided by the two PICs to provide a combined switching signal. Each switching component is coupled to the control logic and configured to control a current path of charging and discharging the battery based on the combined switching signal.
    Type: Application
    Filed: April 13, 2021
    Publication date: December 2, 2021
    Applicant: Google LLC
    Inventors: Haoxing Zhang, David Wang, James Robert Lim, Dietrich Shing-Quan Ho
  • Publication number: 20210376625
    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.
    Type: Application
    Filed: April 5, 2021
    Publication date: December 2, 2021
    Applicant: Google LLC
    Inventors: James Robert Lim, David Wang, Bonnie Yip, Haoxing Zhang
  • Patent number: 11094984
    Abstract: Systems, methods, and computer-readable media are disclosed for swelling resistant pouch batteries. In one embodiment, an example battery may include a pouch having an aluminum layer with a first portion and a second portion, and at least one cell that is partially positioned within the pouch. The at least one cell may include an anode, a separator, a cathode, and an electrolyte. Example pouch batteries may include a circuit electrically coupled to the cathode and to the first portion of the aluminum layer, where the circuit is configured to cause a electric potential difference at the aluminum layer with respect to the anode, and a first electrical contact electrically coupled to the first portion of the aluminum layer.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 17, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Zhigang Ai, James Robert Lim, Jing Cao, Haoxing Zhang
  • Patent number: 10699691
    Abstract: A head-mounted wearable device (HMWD) may incorporate bone conduction speakers (BCS) to generate audio output that is perceptible to a wearer. During operation, vibrations of the BCS may produce sound in the surrounding air that is perceptible to bystanders. An active noise cancellation module monitors the output and generates cancellation audio that is out of phase with the sound leaked by the BCS. An air conduction speaker emits the cancellation audio, producing destructive acoustic interference to the leaked sound. As a result, the user of the HMWD is able to hear audio clearly while bystanders are not.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 30, 2020
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Geng Ye, Zhen Xu, Haoxing Zhang, Bozhao Tan, Xuan Zhong, Jianchun Dong