Patents by Inventor Dong Zheng

Dong Zheng 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).

  • Patent number: 11825529
    Abstract: Disclosed herein are systems and methods for facilitating wireless communication of a wearable device. In one aspect, a wireless device receives a paging message from a cellular network, via a wireless link between the wireless device and a companion device. The paging message can be received while a cellular modem of the wireless device is operating in reduced power mode and not registered with the cellular network, and the companion device is registered with the cellular network. The wireless device can transition the cellular modem from the reduced power mode to an active mode in response to receiving the paging message via the wireless link with the companion device. The wireless device can register with the cellular network after the modem has transitioned to active mode, to establish a cellular link directly with the cellular network.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: November 21, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Srinivasa Prasad Vangaru, Qi Qu, Ping Wang, Dong Zheng, Insoo Hwang, Jiansong Wang, Gahima Stephen Mbonye, Swaminathan Balakrishnan
  • Patent number: 11800410
    Abstract: Described embodiments provide devices and methods for operating a multilink device (MLD) and a wireless node using wireless local area network (WLAN) channels and non-WLAN channels. The wireless node may transmit a first message to reserve at least a first WLAN channel. Via a non-WLAN channel, the wireless node may transmit a second message identifying the first WLAN channel to a wireless device, to cause a plurality of receivers of the wireless device to receive on the first WLAN channel. The wireless device may comprise a WLAN-based MLD. At least a defined duration after the second message, the wireless node may transmit at least one data frame to the plurality of receivers of the wireless device, via the first WLAN channel.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: October 24, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Guoqing Li, Dong Zheng, Abhishek Kumar Agrawal
  • Publication number: 20230324979
    Abstract: Systems and methods for managing power consumption of device subsystems include a device which maintains one or more constraint metric tables for applications executable on the device. Each of the one or more constraint metric tables may specify respective power levels for subsystems of the device according to a respective application or an application type of the respective application. The device may determine to operate the device at a reduced power level for a first application, based on a condition for the device satisfying at least one of a thermal threshold criteria or a power threshold criteria when the device operates at full power level. The device may apply a constraint metric responsive to determining to operate at the reduced power level, to cause a subset of the plurality of subsystems to adjust a power consumption level according to a first constraint metric table corresponding to the first application.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 12, 2023
    Inventors: Siddharth RAY, Ping WANG, Achaleshwar SAHAI, Xiaodi ZHANG, Neeraj POOJARY, Dong ZHENG, Guoqing LI, Shivank NAYAK, Madhusudan Kinthada VENKATA, Swaminathan BALAKRISHNAN
  • Patent number: 11784725
    Abstract: Disclosed herein are systems, devices and methods related to a wireless communication. In one aspect, a device determines a first metric according to a first data rate and a first power consumption of communication through a first antenna of the device. In one aspect, the device determines a second metric according to a second data rate and a second power consumption of communication through the first antenna and a second antenna of the device. In one aspect, the device selects one or more of the first antenna and the second antenna for communication with another device, according to the first metric and the second metric. In one aspect, the device communicates through the one or more of the first antenna and the second antenna.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: October 10, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Dong Zheng, Qi Qu, William Louis Abbott
  • Patent number: 11763126
    Abstract: An electronic device may be attached to an external item. The electronic device may include an optical identification sensor configured to sense a color-encoded tag in the external item when the item is attached to the device. The optical identification sensor may include a board layer, a protective filter layer, wall structures for supporting the protective filter layer on the board layer, a linear array of photodetectors disposed between the board layer and the protective filter layer, a field-of-view restriction filter interposed between the photodetectors and the protective filter layer, and a light source having multiple emitters for illuminating the color-encoded tag. The emitters may be activated sequentially to produce multiple images that are combined to reconstruct an accurate reading of the color-encoded tag, which can then be used to identify the type of external item currently attached to the electronic device.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: September 19, 2023
    Assignee: Apple Inc.
    Inventors: David D. Dashevsky, Brian S. Pearson, Dong Zheng, Eugene C. Cheung, Kenneth J. Vampola
  • Publication number: 20230288252
    Abstract: An electronic device may have an ambient light sensor for gathering ambient light measurements. The ambient light sensor may include multiple channels for measuring different wavelengths of ambient light. An additional, modified, channel may be formed in the ambient light sensor to measure radio-frequency signals that may interfere with the ambient light measurements due to electromagnetic interference. Alternatively, circuitry separate from the ambient light sensor, such as an antenna, may measure the radio-frequency signals. If the radio-frequency signals exceed a threshold, the ambient light sensor measurements taken in the presence of the radio-frequency signals may be discarded or corrected. If the radio-frequency signals do not exceed a threshold, the ambient light sensor measurements may be kept. Therefore, the ambient light measurements that are kept and relied upon by the electronic device may be free from electromagnetic interference.
    Type: Application
    Filed: January 31, 2023
    Publication date: September 14, 2023
    Inventors: Michael D Eaton, Anand K Chamakura, Dong Zheng
  • Publication number: 20230258785
    Abstract: An electronic device may include a proximity sensor under a cover layer. The proximity sensor may include a light-emitter, such as an infrared light source, and a light-detector, such as an array of single-photon avalanche diodes (SPADs). The SPADs may measure light that has reflected from an external object. However, some of the light may be reflected by the cover layer, creating cross-talk. To distinguish between the cross-talk and signals from the external object, processing circuitry may histogram measurements from the SPADs. In particular, the processing circuitry may histogram near-field and/or far-field measurements into different histograms. The measurements may be weighted and/or gated prior to histogramming. In this way, cross-talk may be distinguished from the near-field and far-field signals.
    Type: Application
    Filed: February 1, 2023
    Publication date: August 17, 2023
    Inventors: Shingo Mandai, Dong Zheng, Tong Chen, Cristiano L Niclass
  • Patent number: 11723003
    Abstract: Disclosed herein are related to a system and a method of remotely rendering artificial reality. In one approach, a console determines an expected transmission end time of a first session for wireless transmission of image data indicating an image of artificial reality to a head wearable display. In one approach, the console determines an expected process end time of generating additional data associated with the image of the artificial reality. In one approach, the console compares the expected transmission end time and the expected process end time. The console may transmit, to the head wearable display in the first session, the additional data together with the image data, in response to the expected process end time being less than the expected transmission end time.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: August 8, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Qi Qu, Dong Zheng, Gang Lu, William Louis Abbott, Nicholas Daniel Trail
  • Patent number: 11722975
    Abstract: Disclosed herein are related to coordinating communication among a first access point, a first station device, a second access point, and a second station device. In one aspect, the second access point receives, from the first access point, a first beacon of the first access point at a first beacon transmission time. The first beacon may indicate an offset between the first beacon transmission time of the first beacon and a first data transmission time of the first access point for communication between the first access point and a first station device. In one aspect, the second access point may determine, according to the offset, a second data transmission time of the second access point to be distinct from the first data transmission time of the first access point. The second access point may communicate with a second station device, according to the second data transmission time.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: August 8, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Gang Lu, Amit Shukla, Dong Zheng
  • Publication number: 20230224369
    Abstract: A method by a rendering device includes receiving a request to render multiple surfaces corresponding to multiple virtual objects to be concurrently displayed on an augmented-reality (AR) headset. The method further includes that the AR headset is connected to the rendering device via a wireless link. In response to a determination that a network quality of the wireless link is below a threshold condition, the method further includes selecting a first subset of the multiple surfaces that are higher priority than a second subset of the plurality of surfaces. The method includes transmitting the first subset of multiple surfaces to the AR headset for display and transmitting the second subset of multiple surfaces to the AR headset for display after transmitting the first subset. This method includes rendering the surfaces in accordance with a set of rendering parameters so as to satisfy one or more network constraints.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 13, 2023
    Inventors: Zhiqing Rao, Eugene Gorbatov, Chris Rojas, Dong Zheng, Cheng Chang, Yuting Fan
  • Publication number: 20230216551
    Abstract: Described embodiments provide devices and methods for directing portions of signals to reduce power consumption. A wearable device may comprise N antennas configured to wirelessly receive and/or transmit incoming and/or outgoing signals. The N antennas may be spatially disposed on the device to enable at least one of the N antennas to be clear from blockage by a body part of a user when the device is maintained or worn against the body part, wherein N is an integer value greater than or equal to 2. The wearable device may comprise N receive chains coupled to the N antennas via transmit-receive couplers, the N receive chains configured to process the incoming signals. The wearable device may comprise a transmit chain configured to generate the outgoing signals. The wearable device may comprise a RF controller circuitry configured to direct portions of the generated outgoing signals via the transmit-receive couplers to the N antennas.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Inventors: Dong ZHENG, Qi QU, Abhishek Kumar AGRAWAL
  • Publication number: 20230189142
    Abstract: Disclosed herein are related to a first device to communicate with a second device and a third device. In one aspect, the first device determines a first time interval to receive a first beacon frame from the second device. In one aspect, the first device determines, according to the first time interval, a second time interval for the first device to transmit a second beacon frame to a third device. In one aspect, the first device determines a third time interval to operate the first device in a wake up mode. The third time interval may encompass the first time interval and the second time interval. In one aspect, the first device receives the first beacon frame from the second device during the first time interval, and transmits the second beacon frame to the third device during the second time interval.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 15, 2023
    Inventors: Dong ZHENG, Qi QU, Gang LU, William Louis ABBOTT
  • Patent number: 11678324
    Abstract: Disclosed herein a system, a method and a device for dynamic scheduling between a head wearable display and a console is provided. The head wearable display can initiate, at a first time instance, a first downlink transmission to the console. The head wearable display can dynamically indicate, to the console, an end of the first downlink transmission, at a second time instance when transfer of data of the first downlink transmission is complete. The head wearable display can dynamically cause, relative to the second time instance, the console to begin an uplink transmission. The head wearable display can receive an indication to dynamically start a second downlink transmission, at a third time instance when transfer of data of the uplink transmission is complete.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: June 13, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Gang Lu, Dong Zheng, Qi Qu, Yuting Fan
  • Patent number: 11606121
    Abstract: Described embodiments provide devices and methods for directing portions of signals to reduce power consumption. A wearable device may comprise N antennas configured to wirelessly receive and/or transmit incoming and/or outgoing signals. The N antennas may be spatially disposed on the device to enable at least one of the N antennas to be clear from blockage by a body part of a user when the device is maintained or worn against the body part, wherein N is an integer value greater than or equal to 2. The wearable device may comprise N receive chains coupled to the N antennas via transmit-receive couplers, the N receive chains configured to process the incoming signals. The wearable device may comprise a transmit chain configured to generate the outgoing signals. The wearable device may comprise a RF controller circuitry configured to direct portions of the generated outgoing signals via the transmit-receive couplers to the N antennas.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: March 14, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Dong Zheng, Qi Qu, Abhishek Kumar Agrawal
  • Publication number: 20230074849
    Abstract: An electronic device may be attached to an external item. The electronic device may include an optical identification sensor configured to sense a color-encoded tag in the external item when the item is attached to the device. The optical identification sensor may include a board layer, a protective filter layer, wall structures for supporting the protective filter layer on the board layer, a linear array of photodetectors disposed between the board layer and the protective filter layer, a field-of-view restriction filter interposed between the photodetectors and the protective filter layer, and a light source having multiple emitters for illuminating the color-encoded tag. The emitters may be activated sequentially to produce multiple images that are combined to reconstruct an accurate reading of the color-encoded tag, which can then be used to identify the type of external item currently attached to the electronic device.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 9, 2023
    Inventors: David D. Dashevsky, Brian S. Pearson, Dong Zheng, Eugene C. Cheung, Kenneth J. Vampola
  • Publication number: 20230064620
    Abstract: Described embodiments provide devices and methods for directing portions of signals to reduce power consumption. A wearable device may comprise N antennas configured to wirelessly receive and/or transmit incoming and/or outgoing signals. The N antennas may be spatially disposed on the device to enable at least one of the N antennas to be clear from blockage by a body part of a user when the device is maintained or worn against the body part, wherein N is an integer value greater than or equal to 2. The wearable device may comprise N receive chains coupled to the N antennas via transmit-receive couplers, the N receive chains configured to process the incoming signals. The wearable device may comprise a transmit chain configured to generate the outgoing signals. The wearable device may comprise a RF controller circuitry configured to direct portions of the generated outgoing signals via the transmit-receive couplers to the N antennas.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Inventors: Dong ZHENG, Qi QU, Abhishek Kumar AGRAWAL
  • Publication number: 20230064582
    Abstract: Systems and methods for iterative distributed beam selection include a device including at least one of a first head wearable display (HWD), a second HWD, a first console or a second console. The device detects a predefined condition. The device performs a first distributed beam selection responsive to detecting the predefined condition. Performing the first distributed beam selection includes performing beamforming to provide a first plurality of beams for a first link between the first HWD and the first console, selecting a first beam of the first link with a highest signal-to-interference-plus-noise ratio (SINR) from the first plurality of beams, performing beamforming to provide a second plurality of beams for a second link between the second HWD and the second console while the first beam of the first link is active, and selecting a second beam of the second link with a highest SINR from the second plurality of beams.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 2, 2023
    Inventors: Dong ZHENG, Qi QU, Yuting FAN, Gang LU, William Louis ABBOTT
  • Publication number: 20230057221
    Abstract: Disclosed herein are related to a first device to communicate with an access point and a second device. In one aspect, the first device communicates with the access point during the first time interval through a first wireless communication. In one aspect, the first device prevents communication with the access point during the second time interval. In one aspect, the first device communicates, as a soft access point, with a second device during the third time interval within the second time interval through a second wireless communication, the third time interval shorter than the second time interval.
    Type: Application
    Filed: November 7, 2022
    Publication date: February 23, 2023
    Inventors: Dong Zheng, Qi Qu, Gang Lu, William Louis Abbott
  • Publication number: 20230045725
    Abstract: Disclosed herein are related to coordinating communication among a first access point, a first station device, a second access point, and a second station device. In one aspect, the second access point receives, from the first access point, a first beacon of the first access point at a first beacon transmission time. The first beacon may indicate an offset between the first beacon transmission time of the first beacon and a first data transmission time of the first access point for communication between the first access point and a first station device. In one aspect, the second access point may determine, according to the offset, a second data transmission time of the second access point to be distinct from the first data transmission time of the first access point. The second access point may communicate with a second station device, according to the second data transmission time.
    Type: Application
    Filed: October 24, 2022
    Publication date: February 9, 2023
    Inventors: Gang Lu, Amit Shukla, Dong Zheng
  • Patent number: 11576121
    Abstract: Disclosed herein are related to a first device to communicate with a second device and a third device. In one aspect, the first device determines a first time interval to receive a first beacon frame from the second device. In one aspect, the first device determines, according to the first time interval, a second time interval for the first device to transmit a second beacon frame to a third device. In one aspect, the first device determines a third time interval to operate the first device in a wake up mode. The third time interval may encompass the first time interval and the second time interval. In one aspect, the first device receives the first beacon frame from the second device during the first time interval, and transmits the second beacon frame to the third device during the second time interval.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: February 7, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Dong Zheng, Qi Qu, Gang Lu, William Louis Abbott