Patents by Inventor Zhen Cao

Zhen 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: 11397627
    Abstract: A data processing method and apparatus, where one or more applications run in an operating system of a first device, there is a plurality of paths between the first device and a second device, and the paths correspond to the one or more applications. In a data receiving process, the one or more applications obtain data on the paths through a system call, and further obtain data in a plurality of packets from at least one path. In a data sending process, the one or more applications distribute data to corresponding paths through a system call.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: July 26, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Rahul Arvind Jadhav, K Anmol Mani Tejeswar Sarma, Zhen Cao
  • Patent number: 11277313
    Abstract: This application provides example data transmission methods and corresponding example devices. One example method includes sending, by a first device, a first packet to a second device, where the first packet includes transmission policy negotiation information, and where the transmission policy negotiation information is used to negotiate a transmission policy used when the second device uses a multipath connection. The first device can then receive a second packet from the second device, where the second packet includes first policy information, and where the first policy information indicates a transmission policy used when the second device uses the multipath connection. The first device can then transmit data with the second device based on the first policy information by using a transmission policy corresponding to the first policy information.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: March 15, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Nagesh S, Zhen Cao, Jianjian Zhu
  • Publication number: 20220060406
    Abstract: The present disclosure relates to apparatus and methods for route invalidation. In one example method, a common ancestor node of a network determines switching of a parent node of a node based on an update message received from the node using a new routing path established based on the switching of the parent node. The common ancestor node generates a No-Path message based on the update message. The No-Path message is for invalidating a previous routing path associated with the node on the switching of the parent node. The update message comprises at least one bit authorizing generation of the No-Path message by the common ancestor node. The at least one bit is placed in a transit information option in the update message.
    Type: Application
    Filed: July 19, 2021
    Publication date: February 24, 2022
    Inventors: Rahul Arvind JADHAV, Rabi Narayan SAHOO, Zhen CAO
  • Publication number: 20220045512
    Abstract: This application discloses an inverter of a grid-connected photovoltaic power generation system. The inverter includes a grid-connected inverter unit, an alternating current auxiliary power supply, and a startup apparatus. The alternating current auxiliary power supply is configured to convert an alternating current from an alternating current power grid into a direct current. An input terminal of the grid-connected inverter unit is connected to a bus capacitor. The startup apparatus is configured to: obtain an alternating current from the alternating current power grid, convert the alternating current into a direct current, and then provide the direct current to the bus capacitor, to start the grid-connected inverter unit. By using the inverter, the grid-connected photovoltaic power generation system can be started normally when there is insufficient or no sunlight, to allow scheduling of the grid-connected photovoltaic power generation system to be normally performed.
    Type: Application
    Filed: October 20, 2021
    Publication date: February 10, 2022
    Inventors: Zhen CAO, Yanzhong ZHANG, Yongbing GAO
  • Publication number: 20220026971
    Abstract: A method and a device are for power supply switchover in a power system, including two power supplies, each being connected to a bus through an incoming line. The power supply currently in operation is used as the main power supply and the other power supply is used as a backup power supply. Both the incoming line and the bus have three phases, and the lines are connected by their phases. In an embodiment, the method includes: determining whether there is at least one sound phase among the three phases after identifying a fault in the power system; and if there is, obtaining a power data on the sound phase before the main power supply is disconnected. The power data is usable to determine whether the backup power supply meets the condition for connecting in the quick mode after the main power supply is disconnected.
    Type: Application
    Filed: July 21, 2021
    Publication date: January 27, 2022
    Applicant: Siemens Aktiengesellschaft
    Inventors: Zhen CAO, Feng Xian CUI, Ya Li WANG, Di Jun GAO, Lei Ming QIN
  • Publication number: 20210391709
    Abstract: A breaker apparatus and an inverter system are configured to disconnect an electrical connection when a fault occurs in a protected circuit. The breaker apparatus is connected in series in a protected circuit, and is configured to disconnect the electrical connection when a fault occurs in the protected circuit. The breaker apparatus includes a first branch, and a second branch. The first branch includes an overcurrent-automatic-disconnection unit and a first current limiting unit that are connected in series, where the overcurrent-automatic-disconnection unit is configured to be automatically disconnected when a current flowing through the overcurrent-automatic-disconnection unit exceeds a breaking current threshold. The a second branch is configured to be open or closed under control of the controller.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 16, 2021
    Inventors: Xun WANG, Zhen CAO, Yongbing GAO
  • Publication number: 20210344053
    Abstract: Battery systems and methods for accelerating ion diffusion in polymer electrolyte materials. The application of oscillating electric fields is used to improve the ionic transport properties of polymer electrolytes by reducing the apparent hopping barrier of the lithium ions within the electrolyte material. Polymer-electrolyte-based battery cells exhibiting enhanced ion mobility due to the application of such oscillating electric fields.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 4, 2021
    Inventors: Jonathan MAILOA, Alfredo ALEXANDER-KATZ, Zhen CAO
  • Patent number: 11146362
    Abstract: An Internet of Things data transmission method includes sending, by a terminal device, a first data request to a server, and continuously receiving, by the terminal device, N data packets from the server. The first data request instructs the server to continuously send a plurality of data packets. The first data request includes a quantity N of data packets, that the terminal device is capable of continuously receiving, and a time interval for sending two consecutive data packets, where N is an integer greater than 1. The N data packets include at least one non-confirmable Constrained Application Protocol (NON) data packet, a sending time interval between two consecutive data packets in the N data packets and the at least one NON data packet indicates that sending a receiving response from the terminal device to the server is unnecessary.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: October 12, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Baicheng Fu, Zhen Cao, Ke Jin, Fei Zheng
  • Patent number: 11070462
    Abstract: Example apparatus and methods for optimized route invalidation using modified no-path Destination Oriented Directed Acyclic Graph Advertisement Object (DAO) signaling are disclosed. In one example method, a node switching its current parent is adapted to send a regular DAO message. Using the changed signaling, a common ancestor node generates a No-Path destination oriented directed acyclic graph advertisement object message (NPDAO) on behalf of the switching node on receiving a refreshed DAO from an alternate path. The common ancestor node reuses a same Path Sequence from the regular DAO based on which the NPDAO gets generated. The common ancestor node detects routing anomaly using next hop mismatch on reception of the DAO to generate the NPDAO on behalf of the target node. The No-Path DAO traverses downward/downstream along the previous path.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: July 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Rahul Arvind Jadhav, Rabi Narayan Sahoo, Zhen Cao
  • Publication number: 20210135944
    Abstract: This application provides example data transmission methods and corresponding example devices. One example method includes sending, by a first device, a first packet to a second device, where the first packet includes transmission policy negotiation information, and where the transmission policy negotiation information is used to negotiate a transmission policy used when the second device uses a multipath connection. The first device can then receive a second packet from the second device, where the second packet includes first policy information, and where the first policy information indicates a transmission policy used when the second device uses the multipath connection. The first device can then transmit data with the second device based on the first policy information by using a transmission policy corresponding to the first policy information.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Inventors: Nagesh S, Zhen CAO, Jianjian ZHU
  • Publication number: 20210126741
    Abstract: This application provide a retransmission control method, a communications interface, and an electronic device. When a transmit end transmits a first data packet to a receive end and does not receive an acknowledgement corresponding to the first data packet within a first RTO, the transmit end retransmits a second data packet based on a second RTO. The second data packet is a data packet transmitted by the transmit end after the transmit end transmits the first data packet. The second RTO is related to a receive timestamp of the acknowledgement corresponding to the first data packet and a transmit timestamp of the first data packet.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 29, 2021
    Inventors: Zhen CAO, Kai ZHENG, IIpo JARVINEN, Markku KOJO
  • Publication number: 20210120107
    Abstract: A data processing method includes receiving, by an operating system of a device, a start instruction from an application in the device that includes an identifier of a socket connection, where the application is a latency-insensitive application, calling, by the operating system according to the start instruction, a monitoring system in the operating system to monitor buffering of data of the socket connection in a kernel buffer, where the data of the socket connection is from an underlying protocol stack, and generating, by the monitoring system, a data readable identifier when a time interval between a current moment and a start moment is greater than or equal to a timeout duration, where the start moment is when the operating system receives the start instruction, and the data readable identifier indicates that the data of the socket connection is readable by the application.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Rahul Arvind Jadhav, K Anmol Mani Tejeswar Sarma, Zhen Cao
  • Publication number: 20210109089
    Abstract: The present invention relates to a method for constructing a chromatography test strip for triazophos based on molecular imprinting and electrospinning. The present invention combines electrospinning, molecular imprinting and the immunochromatography test strip technology. Molecularly imprinted T-line (detection limit) is prepared on an NC membrane by electrospinning, and goat anti-mouse IgG is used as C-line (quality control line). With fluorescence changes occurring when triazophos hapten-murine IgG/fluorescein isothiocyanate conjugate (THBu-IgG-FITC) fluorescent probe directly competes with the target triazophos to bind to the molecularly imprinted binding site, a chromatography-fluorescence detection method for triazophos based on molecular imprinting and electrospinning is established. The functional material adsorbing triazophos provided by the present invention adopts a virtual template to avoid template leakage, and can be used in immunochromatography to replace a biological antibody.
    Type: Application
    Filed: June 25, 2020
    Publication date: April 15, 2021
    Inventors: Yongxin She, Sihui Hong, Miao Wang, Zhen Cao, Yahui He, Jing Wang
  • Publication number: 20210098692
    Abstract: A method for configuring a reconfigurable physical unclonable function (PUF) based on a device with spin-orbit torque (SOT) effect is provided. The disclosure uses SOT or magnetic field to change the magnetic moment. After the current or magnetic field is removed, the magnetic moment returns to the easy axis direction. Under the effect of thermal fluctuation, the magnetic moment is randomly oriented in the easy axis direction. The non-volatile devices are formed into an array, the magnetic moments of all non-volatile devices are randomly distributed after a write operation. The read state can be used as a random code to implement the reconfigurable PUF. The PUF has a simple structure and guarantees security. The random code in the disclosure may be two-state or multi-state, which is related to the number of magnetic domains of the ferromagnetic layer. A large number of challenge response pairs form a strong PUF.
    Type: Application
    Filed: September 24, 2020
    Publication date: April 1, 2021
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Long YOU, Shuai ZHANG, Zhen CAO
  • Publication number: 20210081921
    Abstract: An information processing method to be executed by an information processing apparatus includes providing a deferred payment service that includes a lump-sum payment to be liquidated in lump-sum within a predetermined period, and multiple times of payments to be liquidated respectively on a plurality of dates including a date within the predetermined period and dates after the predetermined period; receiving information of a first maximum amount to be liquidated by the deferred payment service within the predetermined period, designated by a user; and setting a second maximum amount, to be liquidated by one payment of the multiple times of payments, below the first maximum amount.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 18, 2021
    Inventors: Kan MIZUNO, Masato YAMAMOTO, Kazuho NAKAJIMA, Yasuyuki MATSUOKA, Yuuka YAMAJI, Koki KUSANO, Zhen CAO, Nobuo SUZUKI, Hisatomo YAMAMOTO
  • Publication number: 20210064454
    Abstract: A data processing method and apparatus, where one or more applications run in an operating system of a first device, there is a plurality of paths between the first device and a second device, and the paths correspond to the one or more applications. In a data receiving process, the one or more applications obtain data on the paths through a system call, and further obtain data in a plurality of packets from at least one path. In a data sending process, the one or more applications distribute data to corresponding paths through a system call.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventors: Rahul Arvind Jadhav, K Anmol Mani Tejeswar Sarma, Zhen Cao
  • Publication number: 20200304240
    Abstract: An Internet of Things data transmission method includes sending, by a terminal device, a first data request to a server, and continuously receiving, by the terminal device, N data packets from the server. The first data request instructs the server to continuously send a plurality of data packets. The first data request includes a quantity N of data packets, that the terminal device is capable of continuously receiving, and a time interval for sending two consecutive data packets, where N is an integer greater than 1. The N data packets include at least one non-confirmable Constrained Application Protocol (NON) data packet, a sending time interval between two consecutive data packets in the N data packets and the at least one NON data packet indicates that sending a receiving response from the terminal device to the server is unnecessary.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Inventors: Baicheng FU, Zhen CAO, Ke JIN, Fei ZHENG
  • Patent number: 10733163
    Abstract: Embodiments of the present invention disclose a method, computer program product, and system for inserting one or more records into a database table. An insert request for inserting a new record to a database table is received, wherein the new record includes at least one key field. a partial identity of at least one record matching the at least one key field of the new record is searched for. A partial identity is assigned to the new record based on a result of the searching.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: August 4, 2020
    Assignee: International Business Machines Corporation
    Inventors: Mei Zhen Cao, Min Fang, Di Jin, Zhen Yu Shi, Nigel G. Slinger, Shu Wang, Li Fei Zheng, Wen Jie Zhu
  • Publication number: 20200245406
    Abstract: A network switching method includes transmitting, by an electronic device, data using a wireless local area network, when a data transmission delay of the wireless local area network is greater than a first threshold, switching, by the electronic device, to transmitting data using both the wireless local area network and a mobile network, and when the electronic device transmits data using both the wireless local area network and the mobile network, if the data transmission delay of the wireless local area network is greater than a second threshold, switching, by the electronic device, to transmitting data using the mobile network, where the first threshold is less than the second threshold.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Inventors: Jianjian Zhu, Rahul Arvind Jadhav, Neng Yang, Zhen Cao, Fanzhao Wang
  • Publication number: 20190306048
    Abstract: Apparatus and method for optimized route invalidation using modified no-path DAO signaling are disclosed. According to the present invention, a node switching its current parent is adapted to send a regular Destination Oriented Directed Acyclic Graph (DODAG) Advertisement Object (DAO) message. Using the changed signaling, the common ancestor node generates an NPDAO on behalf of the switching node on receiving a refreshed DAO from an alternate path. The common ancestor node according to the present invention reuses a same PathSequence from the regular DAO based on which the NPDAO gets generated. The common ancestor node detects routing anomaly using next hop mismatch on reception of the DAO to generate the NPDAO on behalf of the target node. The No-Path DAO traverses downward/downstream along the previous path, unlike any other DAO messages traverses upstream according to convention approaches. The present invention provides a new signaling mechanism for route invalidation in constrained networks.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Inventors: Rahul Arvind JADHAV, Rabi Narayan SAHOO, Zhen CAO