Patents by Inventor Rui Cao

Rui Cao 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: 11665036
    Abstract: At least a portion of a physical layer (PHY) preamble of a PHY protocol data unit (PPDU) for transmission in a vehicular communication network is generated to span a first bandwidth a) based on a first orthogonal frequency division multiplexing (OFDM) numerology that is defined for a second bandwidth greater than the first bandwidth and b) down-clocked to generate the at least the portion to span the first bandwidth. The at least the portion includes a legacy portion decodable by a legacy device operating in the network. A data portion is generated based on a second OFDM numerology defined to span the second bandwidth. The PPDU is generated to include the at least the legacy portion of the PHY preamble in a first sub-band, a duplicate of the at least the portion of the preamble in a second sub-band, and the data portion that spans the second bandwidth.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: May 30, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Rui Cao, Hongyuan Zhang, Liwen Chu, Prashant Sharma
  • Publication number: 20230155869
    Abstract: A communication device selects a frequency bandwidth via which a physical layer (PHY) protocol data unit (PPDU) will be transmitted in a vehicular communication network, and generates, the PPDU i) according to a downclocking ratio of 1/2, and ii) based on an orthogonal frequency division multiplexing (OFDM) numerology defined by an IEEE 802.11ac Standard. In response to the selected frequency bandwidth being 10 MHz, the PPDU is generated according to the downclocking ratio of 1/2 and based on the OFDM numerology defined by the IEEE 802.11ac Standard for 20 MHz PPDUs. In response to the selected frequency bandwidth being 20 MHz, the PPDU is generated according to the downclocking ratio of 1/2 and based on the OFDM numerology defined by the IEEE 802.11ac Standard for 40 MHz PPDUs.
    Type: Application
    Filed: January 16, 2023
    Publication date: May 18, 2023
    Inventors: Rui CAO, Hongyuan ZHANG, Hui-Ling LOU, Xiayu ZHENG
  • Patent number: 11641660
    Abstract: A method for multi-antenna processing in multi-link wireless communication systems includes transmitting by a first MLD, a first capability defining a first number of Spatial Streams (SS) supported by the first MLD for a single link exchange over one of a subset of links from a plurality of links between the first MLD and a second MLD. A second capability is transmitted by the first MLD defining a second number of SS supported by the first MLD for each link of a multi-link exchange. At least one Radio Frequency (RF) chain of the first MLD is configured to enable communication over the subset of links from the plurality of links.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: May 2, 2023
    Assignee: NXP USA, Inc.
    Inventors: Young Hoon Kwon, Rui Cao, Liwen Chu, Hongyuan Zhang, Huiling Lou
  • Patent number: 11641633
    Abstract: A first access point (AP) generates and transmits a first physical layer (PHY) data unit for initiating a joint channel sounding procedure between a group of APs, including the first AP and one or more second APs, and one or more client stations. The first PHY data unit is generated to indicate that the first PHY data unit is of joint channel sounding type. The first AP generates and transmits a second PHY data unit for initiating synchronous data transmissions by the group of APs. The second PHY data unit is generated to indicate that the second PHY data unit is of a joint data transmission type. The synchronous data transmissions initiated by the second PHY data unit are steered using beamforming parameters determined based on the joint sounding procedure. A synchronous data transmission by a second AP is adjusted based on the relative timing offset.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 2, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Rui Cao, Sudhir Srinivasa, Hongyuan Zhang
  • Patent number: 11641253
    Abstract: Various embodiments relate to a method performed by a first wireless device for bandwidth negotiation for frame exchange in a TXOP with a second wireless device, including: announcing by the first wireless device a channel puncture scheme indicating whether some 20 MHz channels covering a BSS operating bandwidth are punctured or not; transmitting a frame to the second wireless device indicating a bandwidth for the frame exchange; receiving a frame from the second wireless device indicating a negotiated bandwidth for the frame exchange; and exchanging frames with the second wireless device using the negotiated bandwidth.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: May 2, 2023
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Hongyuan Zhang, Huiling Lou, Rui Cao
  • Patent number: 11641320
    Abstract: Example methods and systems for intent-based network virtualization design are disclosed. One example may comprise: obtaining configuration information and traffic information associated with multiple virtualized computing instances, processing the configuration information and traffic information to identify network connectivity intents and mapping the network connectivity intents to a logical network topology template. Based on a switching intent, a first group may be assigned to a logical network domain and the logical network topology template modified to include a logical switching element. Based on a routing intent, the logical network topology template may be modified to include a logical routing element. A logical network may be configured based on the modified logical network topology template to satisfy the switching intent and routing intent.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: May 2, 2023
    Assignee: VMWARE, INC.
    Inventors: Ziyou Wang, Donghai Han, Mengdie Song, Rui Cao
  • Patent number: 11638238
    Abstract: Embodiments of a method and an apparatus for multi-link data transmission are disclosed. In an embodiment, a method for communications involves at a first device, transmitting, to a second device, a trigger frame that solicits at least one Physical layer Protocol Data Unit (PPDU) for uplink transmission, wherein the trigger frame includes a standard-compatible common info field that includes a trigger type field and a standard-compatible user info list field that includes at least one user info field, wherein the trigger frame includes a solicited Trigger-Based (TB) type indicator in a field in the trigger frame other than the trigger type field, and receiving, at the first device, at least one PPDU from the second device in response to the solicited TB type indicator that was transmitted in the trigger frame by the first device.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: April 25, 2023
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Rui Cao, Sudhir Srinivasa, Hongyuan Zhang, Young Hoon Kwon, Hui-Ling Lou
  • Publication number: 20230114975
    Abstract: A capsule for an electronic cigarette has a first end configured to engage with an electronic cigarette device, a second end having a vapor outlet, a liquid store configured to contain a liquid to be vaporized; a vaporizer housing arranged to house at least a part of a heating element and a part of a fluid transfer element arranged to deliver liquid from the liquid store to the heating element, the heating element being configured to vaporize the received liquid and generate a vapor; a seal arranged to hold the vaporizer housing; a holder arranged to attach to the seal; a main gas flow channel extending between the vaporizer housing and the vapor outlet; a pair of electrodes arranged to provide an electrical connection between the first end of the capsule and an electronic cigarette device; where the holder comprises an airflow passageway.
    Type: Application
    Filed: February 25, 2021
    Publication date: April 13, 2023
    Applicant: JT International SA
    Inventors: Kentaro Matsuda, Peter Loveday, Manabu Yamada, Shen Pifa, Rui Cao
  • Patent number: 11611417
    Abstract: A data unit comprising bits to transmit over one or more frequency segments in a frequency range is obtained. An effective bandwidth in each frequency segment of the frequency range is determined, where the effective bandwidth excludes bandwidth of one or more punctured subchannels in a respective frequency segment. Bits are encoded based on the effective bandwidth of each frequency segment followed by parsing the encoded bits to one or more streams and parsing the encoded bits of a stream to the one or more frequency segments. The parsing of the encoded bits of the stream comprises allocating a first number of consecutive encoded bits to a first frequency segment and allocating a second number of consecutive encoded bits to a second frequency segment, wherein the first number and the second number are based on the effective bandwidth of the first frequency segment and the second frequency segment. The encoded bits are modulated and mapped to subcarriers for transmission.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: March 21, 2023
    Assignee: NXP USA, INC.
    Inventors: Rui Cao, Hongyuan Zhang, Sudhir Srinivasa
  • Patent number: 11611462
    Abstract: A communication device determines that simultaneous transmission and reception via multiple frequency segments in a WLAN is not permitted. The communication device transmits a first packet in a first frequency segment beginning at a first time, and transmits a second packet in a second frequency segment beginning at a second time that is different than the first time. Transmission of the second packet overlaps in time with transmission of the first packet. In response to having determined that simultaneous transmission and reception via multiple frequency segments is not permitted, the communication device includes in the first packet padding so that an end of transmission of the first packet occurs at a same time as an end of transmission of the second packet.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: March 21, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou, Rui Cao, Yan Zhang
  • Publication number: 20230079988
    Abstract: A capsule for an electronic cigarette having a first end configured to engage with an electronic cigarette device; a second end having a vapor outlet; a liquid store configured to contain a liquid to be vaporized; a vaporizer housing arranged to house at least a part of a heating element and a part of a fluid transfer element arranged to deliver liquid from the liquid store to the heating element, the heating element being configured to vaporize the received liquid and generate a vapor; a seal arranged to hold the vaporizer housing; a holder arranged to attach to the seal; a main gas flow channel extending between the vaporizer housing and the vapor outlet; and a pair of electrodes at least partially embedded within the structure of the holder and arranged to provide an electrical connection between the first end of the capsule and an electronic cigarette device.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 16, 2023
    Applicant: JT International SA
    Inventors: Kentaro Matsuda, Peter Loveday, Manabu Yamada, Shen Pifa, Rui Cao, Masafumi Tarora
  • Patent number: 11606254
    Abstract: The method of some embodiments allocates a secondary network interface for a pod, which has a primary network interface, in a container network operating on an underlying logical network. The method receives an ND that designates a network segment. The method receives the pod, wherein the pod includes an identifier of the ND. The method then creates a secondary network interface for the pod and connects the secondary network interface to the network segment. In some embodiments, the pods include multiple ND identifiers that each identify a network segment. The method of such embodiments creates multiple secondary network interfaces and attaches the multiple network segments to the multiple secondary network interfaces.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: March 14, 2023
    Assignee: VMWARE, INC.
    Inventors: Danting Liu, Jianjun Shen, Wenfeng Liu, Rui Cao, Ran Gu, Donghai Han
  • Patent number: 11606765
    Abstract: A communication device generates a first packet for transmission in a first frequency segment, and generates a first physical layer (PHY) preamble of the first packet to include a first field that indicates a first overall bandwidth that the first packet spans. The communication device generates a second packet for transmission in a second frequency segment, and generates a second PHY preamble of the second packet to include a second field that indicates a second overall bandwidth that the second packet spans. The communication device transmits the first packet in the first frequency segment beginning at a first time, and simultaneously transmits the second packet in the second frequency segment beginning at a second time that is different than the first time.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: March 14, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Rui Cao, Hongyuan Zhang, Liwen Chu, Yan Zhang, Hui-Ling Lou
  • Patent number: 11606234
    Abstract: Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: March 14, 2023
    Assignee: NXP USA, INC.
    Inventors: Yakun Sun, Hongyuan Zhang, Sudhir Srinivasa, Rui Cao
  • Publication number: 20230073352
    Abstract: Embodiments of a device, a method, and a system for periodic wireless local area network (WLAN) sensing are disclosed. In an embodiment, the device includes a wireless network interface device implemented on one or more integrated circuits (ICs), where the wireless network interface device is configured to negotiate parameters for performing periodic sensing measurements, and implement the negotiated parameters when performing the periodic sensing measurements.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 9, 2023
    Inventors: Dong Wei, Rui Cao, Hongyuan Zhang
  • Patent number: 11601312
    Abstract: Communication apparatus includes a transceiver configured to communicate over a wireless channel in accordance with both a first and a second communication protocol. The second communication protocol is backward-compatible with the first communication protocol, and has an extended range, which is greater than a nominal range defined by the first communication protocol. A communication controller is configured to generate data frames for transmission by the transceiver, including frame headers in a header format that is compatible both with the first communication protocol and with the second communication protocol. The frame headers include a set of legacy header fields. The communication controller is configured to transmit the legacy fields with a first gain according to the first communication protocol, and to apply a second gain, greater than the first gain, to a transmission of at least one of the legacy header fields for communicating in accordance with the second communication protocol.
    Type: Grant
    Filed: May 2, 2021
    Date of Patent: March 7, 2023
    Assignee: MARVELL ASIA PTE LTD
    Inventors: Rui Cao, Hongyuan Zhang, Prashant Sharma
  • Publication number: 20230060492
    Abstract: Embodiments of a device, a method, and a system for wireless local area network (WLAN) sensing are disclosed. In an embodiment, the device for WLAN sensing includes a wireless network interface device implemented on one or more integrated circuits (ICs), where the wireless network interface device is configured to receive a sounding Physical Layer (PHY) Protocol Data Unit (PPDU) that includes preamble training fields, and detect environmental changes using managed sensing measurements obtained from the preamble training fields included in the sounding PPDU.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 2, 2023
    Inventors: Dong Wei, Rui Cao, Hongyuan Zhang, Christian Raimund Berger, Liwen Chu
  • Publication number: 20230055979
    Abstract: Methods, devices, apparatus, and systems for three-dimensional (3D) contoured scanning photoacoustic imaging and/or deep learning virtual staining.
    Type: Application
    Filed: August 17, 2022
    Publication date: February 23, 2023
    Inventors: Lihong Wang, Rui Cao
  • Publication number: 20230027271
    Abstract: A silicon photonic chip-based LiDAR, comprising a silicon photonic chip (2), a laser module, a beam collimator module (4), and a signal processing module (6), where the laser outputs a frequency modulated continuous laser and transmits the frequency modulated continuous laser to the silicon photonic chip (2), where the laser is split and transmitted in the silicon photonic chip (2) to form a reference interference light and a local oscillation light on the one hand, and the split laser is transmitted to the target (5) via the beam collimator module (4), and then the reflect light of the reference interference light is received to interfere with the local oscillation light to form a measurement interference light on the other hand; and the reference interference light and the measurement interference light are photoelectrically detected in the silicon photonic chip (2) and form an electrical signal being output to the signal processing module (6) to obtain the distance and speed of the target.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 26, 2023
    Applicant: United Microelectronics Center Co., Ltd
    Inventors: Li JIN, Rui CAO, Junbo FENG, Zuwen LIU, Ping JIANG, Jin GUO, Youxi LU, Qixin LIU, Mijie YANG, Tonghui LI
  • Patent number: 11557353
    Abstract: An optimal detection voltage obtaining method, a reading control method and an apparatus are provided.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 17, 2023
    Assignee: MAXIO TECHNOLOGY (HANGZHOU) CO., LTD.
    Inventors: Xuhang Zhang, Xiaofan Yu, Zihua Xiao, Ye Jin, Quan Cai, Xiaomin Luo, Lihong Zhao, Rui Cao