Patents by Inventor Jianzhao Li
Jianzhao Li 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).
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Patent number: 11649340Abstract: A phosphorus-containing silane compound has a structure of SiR1(R2)n(R3)3-n, wherein R1 is a phenyl group, R2 is a vinyl group, R3 each independently is a structure of Formula (I) or Formula (II), and n is 1 or 2. Moreover, a method of making the phosphorus-containing silane compound, a resin composition including the phosphorus-containing silane compound and a resin additive and an article made from the resin composition are described. The article includes a prepreg, a resin film, a laminate or a printed circuit board, wherein one or more properties including Z-axis ratio of thermal expansion, copper foil peeling strength, inner resin flow, branch-like pattern, dielectric constant, dissipation factor and flame retardancy may be improved.Type: GrantFiled: December 1, 2021Date of Patent: May 16, 2023Assignee: ELITE ELECTRONIC MATERIAL (ZHONGSHAN) CO., LTD.Inventors: Zhilong Hu, Changyuan Li, Hongxia Peng, Lianhui Cai, Jianzhao Li
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Publication number: 20230126282Abstract: A phosphorus-containing silane compound has a structure of SiR1(R2)n(R3)3-n, wherein R1 is a phenyl group, R2 is a vinyl group, R3 each independently is a structure of Formula (I) or Formula (II), and n is 1 or 2. Moreover, a method of making the phosphorus-containing silane compound, a resin composition including the phosphorus-containing silane compound and a resin additive and an article made from the resin composition are described. The article includes a prepreg, a resin film, a laminate or a printed circuit board, wherein one or more properties including Z-axis ratio of thermal expansion, copper foil peeling strength, inner resin flow, branch-like pattern, dielectric constant, dissipation factor and flame retardancy may be improved.Type: ApplicationFiled: December 1, 2021Publication date: April 27, 2023Inventors: Zhilong HU, Changyuan LI, Hongxia PENG, Lianhui CAI, Jianzhao LI
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Patent number: 10826847Abstract: A port auto-negotiation method and a device used for implementing port auto-negotiation between high-speed Ethernet devices are provided. The method performed by a first device includes: configuring a first port of the first device as four subports, where each of the four subports includes a differential transceiver channel; determining from the four subports, at least one subport whose differential transceiver channel operates normally, and selecting some or all of the at least one subport as a normal subport; sending capability information of the first port to a second device by using the normal subport, and receiving, by using the normal subport, capability information of a second port of the second device; and determining operating statuses of the four subports based on the capability information of the first port and of the second port.Type: GrantFiled: April 30, 2019Date of Patent: November 3, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Weibin Kong, Jianzhao Li, Guolan Zheng
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Publication number: 20190260640Abstract: A port auto-negotiation method and a device are used for implementing port auto-negotiation between high-speed Ethernet devices. The method performed by a first device includes: configuring a first port of the first device as four subports, where each of the four subports includes a differential transceiver channel; determining from the four subports, at least one subport whose differential transceiver channel operates normally, and selecting some or all of the at least one subport as a normal subport; sending capability information of the first port to a second device by using the normal subport, and receiving, by using the normal subport, capability information of a second port of the second device; and determining operating statuses of the four subports based on the capability information of the first port and of the second port.Type: ApplicationFiled: April 30, 2019Publication date: August 22, 2019Inventors: Weibin KONG, Jianzhao LI, Guolan ZHENG
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Patent number: 10031880Abstract: The application provides a network device, which includes: a main control board and a service board, where the main control board includes a processor and a switching chip, and the service board includes a physical layer component. The switching chip is connected to the physical layer component by using a system bus. The system bus consists of a SerDes link, and is configured to transmit service data and control information of a port of the physical layer component. The processor controls the port of the physical layer component by using the control information of the port of the physical layer component. The network device transmits the service data and the control information by using the system bus, so that the service board does not need to set a CPU processing the control information, thereby expanding an interface flexibly, and reducing device complexity and hardware costs.Type: GrantFiled: December 10, 2014Date of Patent: July 24, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Jianzhao Li, Lu Cao
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Patent number: 9954672Abstract: A digital signal input circuit including an isolating circuit and a voltage determining circuit is presented, where a first port of an input end of the isolating circuit receives a digital signal, an output end of the isolating circuit outputs the digital signal, and when the isolating circuit is open, the isolating circuit is configured to output a first level, or when the isolating circuit is closed, the isolating circuit is configured to output a second level; and the voltage determining circuit is configured to determine, according to a level of the digital signal, whether the isolating circuit is open or closed. According to the digital signal input circuit, the voltage determining circuit determines a level of a digital signal, thereby correctness of digital signal level conversion is increased.Type: GrantFiled: October 9, 2017Date of Patent: April 24, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Jianzhao Li
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Publication number: 20180102896Abstract: A digital signal input circuit including an isolating circuit and a voltage determining circuit is presented, where a first port of an input end of the isolating circuit receives a digital signal, an output end of the isolating circuit outputs the digital signal, and when the isolating circuit is open, the isolating circuit is configured to output a first level, or when the isolating circuit is closed, the isolating circuit is configured to output a second level; and the voltage determining circuit is configured to determine, according to a level of the digital signal, whether the isolating circuit is open or closed. According to the digital signal input circuit, the voltage determining circuit determines a level of a digital signal, thereby correctness of digital signal level conversion is increased.Type: ApplicationFiled: October 9, 2017Publication date: April 12, 2018Inventor: Jianzhao Li
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Patent number: 9940294Abstract: A method for configuring a high-speed serial bus parameter, including sending an application signal from a transmit end of a high-speed serial bus to a receive end of the high-speed serial bus, searching a parameter configuration table for a high-speed serial bus parameter that matches all of a frequency of the application signal, a loss of the application signal on the high-speed serial bus, and a material type of a wiring board of the high-speed serial bus, and configuring the high-speed serial bus according to the high-speed serial bus parameter. According to the method, a problem involving configuration of a high-speed serial bus parameter when a transmitted signal is compensated may be solved.Type: GrantFiled: August 6, 2015Date of Patent: April 10, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hongjun Zhou, Shuicai Rao, Jianzhao Li
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Publication number: 20160048475Abstract: A method for configuring a high-speed serial bus parameter, including sending an application signal from a transmit end of a high-speed serial bus to a receive end of the high-speed serial bus, searching a parameter configuration table for a high-speed serial bus parameter that matches all of a frequency of the application signal, a loss of the application signal on the high-speed serial bus, and a material type of a wiring board of the high-speed serial bus, and configuring the high-speed serial bus according to the high-speed serial bus parameter. According to the method, a problem involving configuration of a high-speed serial bus parameter when a transmitted signal is compensated may be solved.Type: ApplicationFiled: August 6, 2015Publication date: February 18, 2016Inventors: Hongjun Zhou, Shuicai Rao, Jianzhao Li
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Patent number: 9092154Abstract: Embodiments of the present invention disclose a device information backup method, device, and system for information backup between a first device and a second device. The first device and the second device are directly connected through a cable, and the first device acquires, from the second device through the cable, information to be backed up and back up the information to be backed up. In this way, information backup can be completed quickly and simply, and shortcomings of a poor reliability and a poor security of a pluggable storage medium are avoided.Type: GrantFiled: May 12, 2014Date of Patent: July 28, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Jianzhao Li, Aijun Xiao, Guolan Zheng
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Publication number: 20150180803Abstract: The application provides a network device, which includes: a main control board and a service board, where the main control board includes a processor and a switching chip, and the service board includes a physical layer component. The switching chip is connected to the physical layer component by using a system bus. The system bus consists of a SerDes link, and is configured to transmit service data and control information of a port of the physical layer component. The processor controls the port of the physical layer component by using the control information of the port of the physical layer component. The network device transmits the service data and the control information by using the system bus, so that the service board does not need to set a CPU processing the control information, thereby expanding an interface flexibly, and reducing device complexity and hardware costs.Type: ApplicationFiled: December 10, 2014Publication date: June 25, 2015Inventors: Jianzhao LI, Lu CAO
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Patent number: 8977876Abstract: An apparatus for implementing low power consumption for data switching device includes a dormancy management module that controls an upper layer logic component in a device to enter a low power consumption state when a current state parameter of the device satisfies a preset dormancy configurationcondition; detects whether an energy consumption state of a transmission medium is active; and wakes up the upper layer logic component in the device to enter a normal working state if the energy consumption state of the transmission medium is active. When a preset condition is satisfied, upper layer logic components such as a CPU, a network processor and an optical module in the device, properly stop full-time operation to save energy.Type: GrantFiled: March 14, 2013Date of Patent: March 10, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Xueren Yang, Jianzhao Li, Wen Xiao, Yong Wang
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Publication number: 20140317368Abstract: Embodiments of the present invention disclose a device information backup method, device, and system for information backup between a first device and a second device. The first device and the second device are directly connected through a cable, and the first device acquires, from the second device through the cable, information to be backed up and back up the information to be backed up. In this way, information backup can be completed quickly and simply, and shortcomings of a poor reliability and a poor security of a pluggable storage medium are avoided.Type: ApplicationFiled: May 12, 2014Publication date: October 23, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Jianzhao LI, Aijun XIAO, Guolan ZHENG
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Publication number: 20090046350Abstract: A Fabry-Perot cavity comprised of three-dimensional photonic crystal structures is disclosed. The self-assembly of purified and highly monodispersed microspheres is one approach to the successful operation of the device for creating highly ordered colloidal crystal coatings of high structural and optical quality. Such colloidal crystal film mirrors offer high reflection with low losses in the spectral window of the photonic band gap that permit Fabry-Perot resonators to be constructed with high resolving power, for example, greater than 1000 or sharp fringes that are spectrally narrower than 1.0 nm. The three-dimensional photonic crystals that constitute the Fabry-Perot invention are not restricted to any one fabrication method, and may include self-assembly of colloids, layer-by-layer lithographic construction, inversion, and laser holography.Type: ApplicationFiled: July 31, 2008Publication date: February 19, 2009Inventors: Peter Herman, Jianzhao Li, Vladimir Kitaev
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Publication number: 20050270633Abstract: A Fabry-Perot cavity comprised of three-dimensional photonic crystal structures is disclosed. The self-assembly of purified and highly monodispersed microspheres is one approach to the successful operation of the device for creating highly ordered colloidal crystal coatings of high structural and optical quality. Such colloidal crystal film mirrors offer high reflection with low losses in the spectral window of the photonic band gap that permit Fabry-Perot resonators to be constructed with high resolving power, for example, greater than 1000 or sharp fringes that are spectrally narrower than 1.0 nm. The three-dimensional photonic crystals that constitute the Fabry-Perot invention are not restricted to any one fabrication method, and may include self-assembly of colloids, layer-by-layer lithographic construction, inversion, and laser holography.Type: ApplicationFiled: May 16, 2005Publication date: December 8, 2005Inventors: Peter Herman, Jianzhao Li, Vladimir Kitaev