Patents by Inventor Donghua Chen

Donghua Chen 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).

  • Publication number: 20190207130
    Abstract: The present disclosure relates to a flexible display device, including a flexible substrate. The substrate includes a first portion, a second portion and a bending portion connecting the first portion to the second portion, wherein the flexible substrate has a thickness T. A plurality of display pixels is located at a side of the first portion of the flexible substrate. A supporting layer is located at a side of the flexible substrate facing away from the plurality of display pixels and includes a first supporting layer corresponding to the first portion and a second supporting area corresponding to the second portion. A thickness of the first supporting layer is T1, a thickness of the second supporting layer is T2, and a width of the bending portion is W, wherein W ? ( 2 ? T + T ? ? 1 + T ? ? 2 ) ? ? 2 . Therefore, a narrow border is achieved, and the problem of interference during bending is alleviated.
    Type: Application
    Filed: April 19, 2018
    Publication date: July 4, 2019
    Inventors: Yongxin HE, Dong CHANG, Donghua CHEN, Zhenying LI
  • Patent number: 10082833
    Abstract: The invention discloses a flexible display device including a fixed plate, a slidable plate, and a flexible display panel, wherein the slidable plate slides relative to the fixed plate with a bottom surface overlying the fixed plate; the flexible display panel disposed on the top surface of the slidable plate, wherein the flexible display panel includes a primary display section, and a secondary display section attached to the primary display section, wherein the secondary display section is foldable and retractable, wherein the primary display section is fastened to the top surface of the slidable plate; and wherein while the slidable plate slides relative to the fixed plate, the primary display section brings the retractable secondary display section between a folded position and an expanded position, and the fixed plate supports the primary display section and the secondary display section.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: September 25, 2018
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Donghua Chen
  • Publication number: 20180181164
    Abstract: The invention discloses a flexible display device including a fixed plate, a slidable plate, and a flexible display panel, wherein the slidable plate slides relative to the fixed plate with a bottom surface overlying the fixed plate; the flexible display panel disposed on the top surface of the slidable plate, wherein the flexible display panel includes a primary display section, and a secondary display section attached to the primary display section, wherein the secondary display section is foldable and retractable, wherein the primary display section is fastened to the top surface of the slidable plate; and wherein while the slidable plate slides relative to the fixed plate, the primary display section brings the retractable secondary display section between a folded position and an expanded position, and the fixed plate supports the primary display section and the secondary display section.
    Type: Application
    Filed: July 5, 2017
    Publication date: June 28, 2018
    Inventor: Donghua CHEN
  • Patent number: 8813744
    Abstract: An anesthetic vaporizer and a temperature compensation unit are disclosed. The temperature compensation unit, which cooperates with a vaporizing chamber having a bottom wall, includes a first device connected to the bottom wall of the vaporizing chamber for contacting with liquid anesthetic agent in the vaporizing chamber and changing in length according to temperature change of the liquid anesthetic agent, and a second device connected to the vaporizing chamber. A gas flow gap through which a gas flow passes is formed between the first and second devices. The gas flow gap becomes larger as temperature of the liquid anesthetic agent rises and smaller as the temperature of the liquid anesthetic agent drops.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: August 26, 2014
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd
    Inventors: Donghua Chen, Daoming Gong, Zhiwei Qiao
  • Patent number: 8483131
    Abstract: A method for negotiating and transmitting location update time length information, applied in a Wimax network architecture, comprises: a mobile station initiating a request for initially accessing a network, a request for entering an idle mode, or a request for a location update to a services access service network gateway; when receiving said request, said services access service network gateway negotiating an idle mode timer length, and notifying said mobile station of the negotiated idle mode timer length. The present invention can implement the negotiation and transmission of location update time length information between access service network gateways as well as between an access service network gateway and a mobile station in a Wimax network so that the location update time lengths of the network side and the mobile station maintain consistent.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: July 9, 2013
    Assignee: ZTE Corporation
    Inventors: Junyi Liu, Donghua Chen, Hongyue Sun, Chong Ji
  • Patent number: 8448638
    Abstract: An anesthetic vaporizer is disclosed herein which comprises a fresh gas inlet, a mixed gas outlet, a first gas branch circuit, a second gas branch circuit and a vaporizing chamber. The vaporizing chamber has a reservoir for containing an anesthetic agent. The first gas branch circuit connects the fresh gas inlet and the mixed gas outlet. The second gas branch circuit comprises a first pneumatic circuit, a pressure compensation unit, a second pneumatic circuit, a wick unit and a third pneumatic circuit. The pressure compensation unit has a curved, continuous and sealed vent slot. The wick unit has an immersion portion which is directly contacted with the anesthetic agent in the reservoir. The fresh gas inlet, the first pneumatic circuit, the vent slot, the second pneumatic circuit, the wick unit, the third pneumatic circuit and the mixed gas outlet are sequentially connected with one another.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: May 28, 2013
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Donghua Chen, Daoming Gong, Wei Wang
  • Patent number: 8315390
    Abstract: A method for paging admission control for multi-service flows in a mobile packet domain is provided and comprises steps of when authentication of a mobile station accessing a connectivity service network through an access service network succeeds, assigning a service flow paging strategy for a downlink service flow of the mobile station, and sending the service flow paging strategy to the access service network; receiving, by the access service network, downlink data of a mobile station in IDLE state from a home agent, searching for a downlink service flow to which the downlink data belong, and judging whether the service flow admits paging according to the service flow paging strategy, and if yes, initiating a paging flow triggered by the downlink data.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: November 20, 2012
    Assignee: ZTE Corporation
    Inventors: Chong Ji, Junyi Liu, Donghua Chen, Hongyue Sun
  • Publication number: 20100242962
    Abstract: An anesthetic vaporizer is disclosed herein which comprises a fresh gas inlet, a mixed gas outlet, a first gas branch circuit, a second gas branch circuit and a vaporizing chamber. The vaporizing chamber has a reservoir for containing an anesthetic agent. The first gas branch circuit connects the fresh gas inlet and the mixed gas outlet. The second gas branch circuit comprises a first pneumatic circuit, a pressure compensation unit, a second pneumatic circuit, a wick unit and a third pneumatic circuit. The pressure compensation unit has a curved, continuous and sealed vent slot. The wick unit has an immersion portion which is directly contacted with the anesthetic agent in the reservoir. The fresh gas inlet, the first pneumatic circuit, the vent slot, the second pneumatic circuit, the wick unit, the third pneumatic circuit and the mixed gas outlet are sequentially connected with one another.
    Type: Application
    Filed: September 25, 2009
    Publication date: September 30, 2010
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Donghua CHEN, Daoming GONG, Wei WANG
  • Publication number: 20100189036
    Abstract: A method for negotiating and transmitting location update time length information, applied in a Wimax network architecture, comprises: a mobile station initiating a request for initially accessing a network, a request for entering an idle mode, or a request for a location update to a services access service network gateway; when receiving said request, said services access service network gateway negotiating an idle mode timer length, and notifying said mobile station of the negotiated idle mode timer length. The present invention can implement the negotiation and transmission of location update time length information between access service network gateways as well as between an access service network gateway and a mobile station in a Wimax network so that the location update time lengths of the network side and the mobile station maintain consistent.
    Type: Application
    Filed: November 12, 2007
    Publication date: July 29, 2010
    Applicant: ZTE CORPORATION
    Inventors: Junyi Liu, Donghua Chen, Hongyue Sun, Chong Ji
  • Publication number: 20100180893
    Abstract: An anesthetic vaporizer and a temperature compensation unit are disclosed. The temperature compensation unit, which cooperates with a vaporizing chamber having a bottom wall, includes a first device connected to the bottom wall of the vaporizing chamber for contacting with liquid anesthetic agent in the vaporizing chamber and changing in length according to temperature change of the liquid anesthetic agent, and a second device connected to the vaporizing chamber. A gas flow gap through which a gas flow passes is formed between the first and second devices. The gas flow gap becomes larger as temperature of the liquid anesthetic agent rises and smaller as the temperature of the liquid anesthetic agent drops.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 22, 2010
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Donghua CHEN, Daoming GONG, Zhiwei QIAO
  • Publication number: 20100122322
    Abstract: A method for paging admission control for multi-service flows in a mobile packet domain is provided and comprises steps of when authentication of a mobile station accessing a connectivity service network through an access service network succeeds, assigning a service flow paging strategy for a downlink service flow of the mobile station, and sending the service flow paging strategy to the access service network; receiving, by the access service network, downlink data of a mobile station in IDLE state from a home agent, searching for a downlink service flow to which the downlink data belong, and judging whether the service flow admits paging according to the service flow paging strategy, and if yes, initiating a paging flow triggered by the downlink data.
    Type: Application
    Filed: June 19, 2008
    Publication date: May 13, 2010
    Inventors: Chong Ji, Junyi Liu, Donghua Chen, Hongyue Sun