Patents by Inventor Shihua Wu

Shihua Wu 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: 11513654
    Abstract: The present disclosure discloses an electromagnetic handwriting system and electromagnetic handwriting input method. An electromagnetic handwriting system includes an electromagnetic handwriting tablet configured to receive a drive signal, the drive signal drives the electromagnetic handwriting tablet to be in a suspension state or an enable state. A frequency value at which the electromagnetic handwriting tablet enters the suspension state is set as a suspension state frequency threshold f0, A frequency value at which the electromagnetic handwriting tablet enters the enable state is set as an enable state frequency threshold f1. If an actual frequency value of the drive signal received by the electromagnetic handwriting tablet is set to ft, and a virtual frequency value fx is set to satisfy |f0?f1|>|f0?fx| and |f0?f1|>|fx?f1|, then when ft satisfies |f0?fx|>|f0?ft| and |f0?fx|>|ft?fx|, ft is adjusted to fx in response to driving the electromagnetic handwriting tablet.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 29, 2022
    Assignee: SHENZHEN HUION ANIMATION TECHNOLOGY CO., LTD.
    Inventor: Shihua Wu
  • Publication number: 20220164046
    Abstract: The present disclosure discloses an electromagnetic handwriting system and electromagnetic handwriting input method. An electromagnetic handwriting system includes an electromagnetic handwriting tablet configured to receive a drive signal, the drive signal drives the electromagnetic handwriting tablet to be in a suspension state or an enable state. A frequency value at which the electromagnetic handwriting tablet enters the suspension state is set as a suspension state frequency threshold f0, A frequency value at which the electromagnetic handwriting tablet enters the enable state is set as an enable state frequency threshold f1. If an actual frequency value of the drive signal received by the electromagnetic handwriting tablet is set to ft, and a virtual frequency value fx is set to satisfy |f0?f1|>|f0?fx| and |f0?f1|>|fx?f1|, then when ft satisfies |f0?fx|>|f0?ft| and |f0?fx|>|ft?fx|, ft is adjusted to fx in response to driving the electromagnetic handwriting tablet.
    Type: Application
    Filed: October 12, 2021
    Publication date: May 26, 2022
    Inventor: Shihua Wu
  • Patent number: 9893930
    Abstract: A method for processing data forwarding and a Service Provider-end Provider Edge (SPE) are disclosed, including the following steps: the SPE configuring data forwarding information which includes a corresponding relationship between Multi Segment Pseudo Wires (MSPW) information and forwarding information of an MSPW protection link group or a corresponding relationship between the MSPW information and forwarding information of other MSPW except the forwarding information of the MSPW protection link group (101); the SPE receiving a service message (102) carrying the MSPW information; the SPE querying the forwarding information of the MSPW protection link group or the forwarding information of other MSPW except the forwarding information of the MSPW protection link group (103); and the SPE performing label encapsulation and forwarding according to the queried-out forwarding information of the MSPW protection link group or forwarding information of other MSPW except the forwarding information of the MSPW protecti
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 13, 2018
    Assignee: ZTE Corporation
    Inventors: Shihua Wu, Juan Li
  • Publication number: 20160164717
    Abstract: A method for processing data forwarding and a Service Provider-end Provider Edge (SPE) are disclosed, including the following steps: the SPE configuring data forwarding information which includes a corresponding relationship between Multi Segment Pseudo Wires (MSPW) information and forwarding information of an MSPW protection link group or a corresponding relationship between the MSPW information and forwarding information of other MSPW except the forwarding information of the MSPW protection link group (101); the SPE receiving a service message (102) carrying the MSPW information; the SPE querying the forwarding information of the MSPW protection link group or the forwarding information of other MSPW except the forwarding information of the MSPW protection link group (103); and the SPE performing label encapsulation and forwarding according to the queried-out forwarding information of the MSPW protection link group or forwarding information of other MSPW except the forwarding information of the MSPW protecti
    Type: Application
    Filed: May 28, 2014
    Publication date: June 9, 2016
    Inventors: Shihua WU, Juan LI
  • Patent number: 8750314
    Abstract: The present invention discloses a method and device for a link protection in a virtual private local area network, which relates to the network data communication technology. The method of the present invention includes: in a networking process of a VPLS network, a link protection device establishing a main tunnel and a standby tunnel of MPLS TE for a link, and creating a VPLS forwarding table to deal with the information of the established MPLS TE main tunnel and standby tunnel; and when receiving a VPLS message, the link protection device searching the information of the MPLS TE main tunnel of the VPLS message according to a way of accessing the VPLS network of the VPLS message and the VPLS forwarding table, and if the found MPLS TE main tunnel is invalid, then transmitting the received VPLS message by adopting the standby tunnel of the MPLS TE main tunnel.
    Type: Grant
    Filed: September 25, 2010
    Date of Patent: June 10, 2014
    Assignee: ZTE Corporation
    Inventors: Shihua Wu, Shimeng Chen, Guangping Niu
  • Publication number: 20120239965
    Abstract: The present invention discloses a method and device for a link protection in a virtual private local area network, which relates to the network data communication technology. The method of the present invention includes: in a networking process of a VPLS network, a link protection device establishing a main tunnel and a standby tunnel of MPLS TE for a link, and creating a VPLS forwarding table to deal with the information of the established MPLS TE main tunnel and standby tunnel; and when receiving a VPLS message, the link protection device searching the information of the MPLS TE main tunnel of the VPLS message according to a way of accessing the VPLS network of the VPLS message and the VPLS forwarding table, and if the found MPLS TE main tunnel is invalid, then transmitting the received VPLS message by adopting the standby tunnel of the MPLS TE main tunnel.
    Type: Application
    Filed: September 25, 2010
    Publication date: September 20, 2012
    Inventors: Shihua Wu, Shimeng Chen, Guangping Niu