Patents by Inventor Long Chang

Long Chang 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: 12231514
    Abstract: Provided are a method and an apparatus for generating prediction information, an electronic device, and a computer readable medium. The method includes: generating, based on first user characteristic information of a target user, anonymous user information of the target user (201); sending the anonymous user information to a second processing end to enable the second processing end to generate prediction information based on the anonymous user information and second user characteristic information (202) of the target user. Data interaction and sharing are realized while ensuring data privacy, thereby improving accuracy of the prediction information.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: February 18, 2025
    Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
    Inventors: Liangchao Wu, Lizhe Zhang, Junyuan Xie, Di Wu, Jun Zhang, Cheng Chen, Longyijia Li, Chenliaohui Fang, Kan Liu, Long Chang, Long Huang, Yixiang Chen, Xiang Wu, Peng Zhao, Xiaobing Liu
  • Publication number: 20240276641
    Abstract: An electrical module is provided. The electrical module includes a circuit board. The circuit board includes at least one bonding pad. The bonding pad includes a bonding line and a plurality of traces. The traces are connected to the bonding line. The traces are configured in a radial manner. The bonding line includes a first section and a second section. The first section is connected to the second section. The first section extends in a first direction. The second section extends in a second direction. The first direction is perpendicular to the second direction. An extending direction of at least one of the traces differs from the first direction and the second direction.
    Type: Application
    Filed: February 7, 2024
    Publication date: August 15, 2024
    Inventors: Sheng-Ta WU, Li Jin DENG, Long CHANG, Lei QIU
  • Publication number: 20240019398
    Abstract: A biosensor may provide a magnetoresistive (MR) film comprising a nonmagnetic layer may be sandwiched between the two ferromagnetic layers. The MR film may be positioned on a substrate, where the edges of the MR film are in contact with leads. The leads may be in contact with pads. The sensors may provide quasi-digital readout that enable greatly enhanced sensitivity. In some embodiments, biosensors may be arranged as array of sensors. The array of sensors may be arranged as a symmetric or asymmetric N1×N2 array, where N1 and N2 are integers, N1 represents the number of sensors linked together in series, and N2 represents the number of sensor sets in parallel, where each sensor set may comprise one or more sensors. Further, the array of sensors may be coupled to a voltmeter, which may be a single voltmeter in that allows the sensors to all be probed simultaneously.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 18, 2024
    Applicant: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Dmitri Litvinov, Long Chang, Richard Willson
  • Patent number: 11821818
    Abstract: A biosensor may provide a magnetoresistive (MR) film comprising a nonmagnetic layer may be sandwiched between the two ferromagnetic layers. The MR film may be positioned on a substrate, where the edges of the MR film are in contact with leads. Additionally, the leads may be in contact with pads. The sensors may provide quasi-digital readout that enable greatly enhanced sensitivity. In some embodiments, biosensors may be arranged as array of sensors. The array of sensors may be arranged as a symmetric or asymmetric N1×N2 array, where N1 and N2 are integers, N1 represents the number of sensors linked together in series, and N2 represents the number of sensor sets in parallel, where each sensor set may comprise one or more sensors. Further, the array of sensors may be coupled to a voltmeter, which may be a single voltmeter in some cases that allows the sensors to all be probed simultaneously.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 21, 2023
    Assignee: University of Houston System
    Inventors: Dmitri Litvinov, Long Chang, Richard Willson
  • Patent number: 11809429
    Abstract: Provided are a method for processing model parameters, and an apparatus. The method comprises: a model parameter set to be sharded is obtained, wherein the model parameter set comprises a multi-dimensional array corresponding to a feature embedding; attribute information for a storage system used for storing the model parameter set to be sharded is obtained, wherein the storage system used for storing the model parameter set to be sharded differs from a system on which a model corresponding to the model parameter set to be sharded is located when operating; the model parameter set to be sharded is stored in the storage system according to the attribute information.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: November 7, 2023
    Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
    Inventors: Cheng Chen, Peng Zhao, Di Wu, Junyuan Xie, Chenliaohui Fang, Longyijia Li, Long Huang, Liangchao Wu, Long Chang, Lizhe Zhang, Yixiang Chen, Xiaobing Liu
  • Patent number: 11811864
    Abstract: A network connection method and device for a training participant of a joint training model are provided, the training participant operates in a master-worker mode. The method includes: acquiring communication state information of a worker, the communication state information indicating a communication connection phase that the worker is in; acquiring communication state information of a target worker as target communication state information, where the target worker includes a peer node corresponding to the worker, and the peer node belongs to a different training participant of the joint training model; and resetting, in response to determining that the target communication state information does not match the communication state information of the worker, a communication connection phase that the worker is in.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: November 7, 2023
    Assignee: Douyin Vision Co., Ltd.
    Inventors: Longyijia Li, Cheng Chen, Di Wu, Chenliaohui Fang, Peng Zhao, Junyuan Xie, Yixiang Chen, Liangchao Wu, Long Chang, Xiaobing Liu
  • Publication number: 20230023253
    Abstract: Provided are a method for processing model parameters, and an apparatus. The method comprises: a model parameter set to be sharded is obtained, wherein the model parameter set comprises a multi-dimensional array corresponding to a feature embedding; attribute information for a storage system used for storing the model parameter set to be sharded is obtained, wherein the storage system used for storing the model parameter set to be sharded differs from a system on which a model corresponding to the model parameter set to be sharded is located when operating; the model parameter set to be sharded is stored in the storage system according to the attribute information.
    Type: Application
    Filed: August 12, 2022
    Publication date: January 26, 2023
    Inventors: Cheng CHEN, Peng ZHAO, Di WU, Junyuan XIE, Chenliaohui FANG, Longyijia LI, Long HUANG, Liangchao WU, Long CHANG, Lizhe ZHANG, Yixiang CHEN, Peng ZHAO, Xiaobing LIU
  • Publication number: 20220394085
    Abstract: A network connection method and device for a training participant of a joint training model are provided, the training participant operates in a master-worker mode. The method includes: acquiring communication state information of a worker, the communication state information indicating a communication connection phase that the worker is in; acquiring communication state information of a target worker as target communication state information, where the target worker includes a peer node corresponding to the worker, and the peer node belongs to a different training participant of the joint training model; and resetting, in response to determining that the target communication state information does not match the communication state information of the worker, a communication connection phase that the worker is in.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventors: Longyijia LI, Cheng CHEN, Di WU, Chenliaohui FANG, Peng ZHAO, Junyuan XIE, Yixiang CHEN, Liangchao WU, Long CHANG, Xiaobing LIU
  • Publication number: 20220391642
    Abstract: Provided are a method and apparatus for evaluating a joint training model. A specific implementation of the method for evaluating a joint training model comprises: receiving a model evaluation data request sent by a target device, wherein the target device comprises a participant of a joint training model; acquiring a sample set matching the model evaluation data request, wherein the matching sample set is labeled data associated with the joint training model; and generating model evaluation data of the joint training model according to the matching sample set. By means of the implementation, an effect index of a joint training model can be shared on the premise of not exposing original sample data. Accordingly, a timely and effective data reference basis is provided for the optimization and improvement of the joint training model.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventors: Longyijia LI, Di WU, Cheng CHEN, Chenliaohui FANG, Peng ZHAO, Junyuan XIE, Yixiang CHEN, Liangchao WU, Long CHANG, Xiaobing LIU
  • Publication number: 20220385739
    Abstract: Provided are a method and an apparatus for generating prediction information, an electronic device, and a computer readable medium. The method includes: generating, based on first user characteristic information of a target user, anonymous user information of the target user (201); sending the anonymous user information to a second processing end to enable the second processing end to generate prediction information based on the anonymous user information and second user characteristic information (202) of the target user. Data interaction and sharing are realized while ensuring data privacy, thereby improving accuracy of the prediction information.
    Type: Application
    Filed: August 5, 2022
    Publication date: December 1, 2022
    Inventors: Liangchao WU, Lizhe ZHANG, Junyuan XIE, Di WU, Jun ZHANG, Cheng CHEN, Longyijia LI, Chenliaohui FANG, Kan LIU, Long CHANG, Long HUANG, Yixiang CHEN, Xiang WU, Peng ZHAO, Xiaobing LIU
  • Publication number: 20200124569
    Abstract: A biosensor may provide a magnetoresistive (MR) film comprising a nonmagnetic layer may be sandwiched between the two ferromagnetic layers. The MR film may be positioned on a substrate, where the edges of the MR film are in contact with leads. Additionally, the leads may be in contact with pads. The sensors may provide quasi-digital readout that enable greatly enhanced sensitivity. In some embodiments, biosensors may be arranged as array of sensors. The array of sensors may be arranged as a symmetric or asymmetric N1×N2 array, where N1 and N2 are integers, N1 represents the number of sensors linked together in series, and N2 represents the number of sensor sets in parallel, where each sensor set may comprise one or more sensors. Further, the array of sensors may be coupled to a voltmeter, which may be a single voltmeter in some cases that allows the sensors to all be probed simultaneously.
    Type: Application
    Filed: July 6, 2018
    Publication date: April 23, 2020
    Applicant: University of Houston System
    Inventors: Dmitri Litvinov, Long Chang, Richard Willson
  • Publication number: 20180135874
    Abstract: The present invention relates to a fan guard for an electric fan. The fan guard includes a base guard including a plurality of guard supports; and a cooling assembly configured on the base guard and including: a cool transfer module having a cool transfer disk and a cool transfer body secured on the guard supports; a heat transfer module having a first end and a second end; a heat sink module having a matrix of fin plates; a thermoelectric cooler chip being in an annular shape and having a cooler hot side coupled with the first end and a cooler cool side coupled with the cool transfer disk; and a thermoelectric generator chip being in a rectangular shape and having a generator hot side coupled with the second end and a generator cool side coupled with the heat sink module.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 17, 2018
    Inventor: Long Chang
  • Patent number: 9818535
    Abstract: In the systems and methods for synthesizing a thin film with desired properties (e.g. magnetic, conductivity, photocatalyst, etc.), a metal oxide film may be deposited on a substrate. The metal oxide film may be achieved utilizing any suitable method. A reducing agent may be deposited before, after or both before and after the metal oxide layer. Oxygen may be removed or liberated from the deposited metal oxide film by low temperature local or global annealing. As a result of the annealing to remove oxygen, one or more portions of the metal oxide may be transformed into materials with desired properties. As a nonlimiting example, a metal oxide film may be treated to provide a magnetic multilayer film that is suitable for bit patterned media.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: November 14, 2017
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Dmitri Litvinov, Long Chang
  • Patent number: 9653104
    Abstract: Embodiments of the present disclosure provide a method for selective removal of atoms from a substrate. Such a method comprises forming a patterned mask over at least a portion of the surface of the substrate to form a masked portion and an unmasked portion of the surface. In an embodiment, the method comprises exposing the surface to low energy light ions. In a related embodiment the low energy light ions selectively remove atoms from the unmasked portion of the substrate. In some embodiments, the method further comprises removing the mask. In another embodiment, the present disclosure relates to a method of creating a plurality of magnetic domains on a magnetically susceptible substrate. In an embodiment, the present disclosure pertains to a method of forming a magnetic medium.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 16, 2017
    Assignee: UNIVERSITY OF HOUSTON
    Inventors: Dmitri Litvinov, Long Chang
  • Publication number: 20150194261
    Abstract: In the systems and methods for synthesizing a thin film with desired properties (e.g. magnetic, conductivity, photocatalyst, etc.), a metal oxide film may be deposited on a substrate. The metal oxide film may be achieved utilizing any suitable method. A reducing agent may be deposited before, after or both before and after the metal oxide layer. Oxygen may be removed or liberated from the deposited metal oxide film by low temperature local or global annealing. As a result of the annealing to remove oxygen, one or more portions of the metal oxide may be transformed into materials with desired properties. As a nonlimiting example, a metal oxide film may be treated to provide a magnetic multilayer film that is suitable for bit patterned media.
    Type: Application
    Filed: January 8, 2015
    Publication date: July 9, 2015
    Applicant: University of Houston System
    Inventors: Dmitri Litvinov, Long Chang
  • Publication number: 20140216331
    Abstract: An edible pellet producing apparatus and an operation method are provided. The edible pellet producing apparatus includes a solidifying device, a processing chamber, a boiling tank and a cooling tank for producing an edible pellet.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Inventor: LONG CHANG
  • Publication number: 20140144874
    Abstract: Embodiments of the present disclosure provide a method for selective removal of atoms from a substrate. Such a method comprises forming a patterned mask over at least a portion of the surface of the substrate to form a masked portion and an unmasked portion of the surface. In an embodiment, the method comprises exposing the surface to low energy light ions. In a related embodiment the low energy light ions selectively remove atoms from the unmasked portion of the substrate. In some embodiments, the method further comprises removing the mask. In another embodiment, the present disclosure relates to a method of creating a plurality of magnetic domains on a magnetically susceptible substrate. In an embodiment, the present disclosure pertains to a method of forming a magnetic medium.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 29, 2014
    Applicant: University of Houston
    Inventors: Dmitri Litvinov, Long Chang
  • Publication number: 20130076183
    Abstract: A gravity-assisted self-rotating device includes a support unit, a magnet unit located over the support unit, and a rotating unit pivotally turnably mounted on the support unit. The support unit has a bottom and a top extended in a direction opposite to the bottom. The magnet unit and the support unit together define a rotation space for the rotating unit to rotate therein. The gravity-assisted self-rotating device can be applied to a power generating module with a coil unit of the latter mounted on the rotating unit. With these arrangements, the gravity-assisted self-rotating device and the power generating module using same are able to automatically generate electric power output to achieve the purpose of energy saving and environmental protection.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Inventor: Long Chang
  • Publication number: 20130075985
    Abstract: A conversion device of power tool includes a cutting unit, a housing, an elastic unit, a transmission unit and a connection unit. The cutting unit is inserted in an insertion hole of the connection unit and connected therewith. When the transmission unit is rotated, the elastic unit is kept compressed and released repeatedly that motion makes the cutting unit be pushed and reciprocally moved. The conversion device is applicable to a power tool to easily convert the power tool into a reciprocal linear motion power tools, such as power saw for convenient use.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Inventor: Long Chang
  • Patent number: 7223036
    Abstract: An auto loading and auto dampening cleaning apparatus which comprises a base sweeping pad, a fluid reservoir superimposed over said sweeping pad which defines a slit between the two, a handle having a fork shaped frame which is rotateably attached to the sweeping pad. A lower roll bar contains clean, cleaning material and an upper roll bar receives soiled cleaning material. First and second trigger mechanism activates the roll bars and fluid reservoir to advance the cleaning material and disperse cleaning solution onto the cleaning material on the lower roll bar passes through the slit defined by the fluid reservoir and sweeping pad around the bottom of the sweeping pad and up to the upper roll bar.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: May 29, 2007
    Inventor: Long Chang