Patents by Inventor Lijun Li

Lijun 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).

  • Publication number: 20150204783
    Abstract: A light transmittance measuring apparatus includes a housing made of opaque material, a light source device disposed in the housing and for emitting a first light beam and a second light beam to the object, a light sensor and a microcontroller. The first light beam and the second light beam have different wavelength ranges and have a first light intensity value and a second light intensity value, respectively. The light sensor is for sensing the first and second light beams after passing through the object and obtaining a third and fourth light intensity values, respectively. The microcontroller is for comparing the first and third light intensity values to obtain the light transmittance of the object under the first light beam and compare the second and fourth light intensity values to obtain the light transmittance of the object under the second light beam.
    Type: Application
    Filed: December 17, 2014
    Publication date: July 23, 2015
    Inventors: Chung-Hang Tai, Lijun Li, Musheng Li, Xinfa Chen, Meishu Wang
  • Publication number: 20150207678
    Abstract: A method and an apparatus for managing one or more physical network interface cards and a physical host are provided. One or more virtual network interface cards are created, where each of the virtual network interface cards has a standard network interface card feature and an operation interface; the one or more virtual network interface cards are separately associated with one or more function modules of the physical network interface cards; and the physical network interface cards are managed by managing the one or more virtual network interface cards. In this way, differences in underlying hardware are shielded for an upper layer, and convenient and efficient centralized management are provided, thereby further improving network resource utilization.
    Type: Application
    Filed: April 1, 2015
    Publication date: July 23, 2015
    Inventors: Lijun Li, Xiaofeng Zhang
  • Publication number: 20150113114
    Abstract: The present invention provides a network interface adapter registration method, driver, and server, where the method includes: registering, by a driver of a server, a network interface adapter with a kernel of the server as a physical network device; and registering, by the driver, apart of or all hardware queue receiving and sending groups of the network interface adapter with the kernel of the server as virtual network devices, where the physical network device is configured to manage the network interface adapter and all the virtual network devices, and each of the virtual network devices is configured to receive or send data of an application or a chip in the server. The foregoing method resolves a problem in the prior art that management and a direct operation cannot be performed on a single hardware queue of the network interface adapter.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Xiaofeng Zhang, Lijun Li
  • Patent number: 8989254
    Abstract: An apparatus includes a first coding circuit, a second coding circuit, and a plurality of source series terminated driver slices. The first coding circuit may be configured to generate a plurality of digital filter control codes in response to a plurality of filter coefficients and a control signal. The control signal selects between a plurality of communication specifications. The second coding circuit may be configured to generate a plurality of driver slice control codes in response to the plurality of digital filter control codes. The plurality of source series terminated driver slices configured to generate an output signal according to a selected one of the plurality of communication specifications in response to the plurality of driver slice control codes, a main cursor signal, a pre-cursor signal, and a post cursor signal.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 24, 2015
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Tai Jing, Lijun Li, Shiva Prasad Kotagiri
  • Patent number: 8937053
    Abstract: Disclosed herein are a process or method for the preparation of prasugrel and several novel crystalline forms of prasugrel hydrochloride. The process comprises preparation of prasugrel by acetylation in solvents which have low boiling point and/or low toxicity, and the process not only avoids using solvents which have high boiling point and/or high toxicity such as toluene, acetonitrile and so on, but also resolves the problem about thermal instability of prasugrel, and the loss of prasugrel is reduced, as well as the yield is raised. The yield of prasugrel is higher than 85% and the purity is higher than 99.5%. The process can prepare prasugrel and its pharmaceutically acceptable salts. The novel crystalline forms of prasugrel hydrochloride are crystalline form H1, H2 and H3, and their performance in oral absorbability, activating metabolism and inhibiting platelet aggregation is excellent.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: January 20, 2015
    Assignees: Sunshine Lake Pharma Co., Ltd., Yichang Changjiang Pharmaceutical Co., Ltd.
    Inventors: Lijun Li, Hailong Wang, Zhongqing Wang
  • Publication number: 20140181845
    Abstract: An apparatus includes a first coding circuit, a second coding circuit, and a plurality of source series terminated driver slices. The first coding circuit may be configured to generate a plurality of digital filter control codes in response to a plurality of filter coefficients and a control signal. The control signal selects between a plurality of communication specifications. The second coding circuit may be configured to generate a plurality of driver slice control codes in response to the plurality of digital filter control codes. The plurality of source series terminated driver slices configured to generate an output signal according to a selected one of the plurality of communication specifications in response to the plurality of driver slice control codes, a main cursor signal, a pre-cursor signal, and a post cursor signal.
    Type: Application
    Filed: March 27, 2013
    Publication date: June 26, 2014
    Applicant: LSI Corporation
    Inventors: Tai Jing, Lijun Li, Shiva Prasad Kotagiri
  • Publication number: 20140159807
    Abstract: A slicer circuit including an input differential is configured to amplify an input reference voltage received at a pair of differential input nodes and provide a differential output voltage at a pair of differential output nodes, and a regeneration latch configured to amplify the differential output voltage. A differential offset compensation voltage is applied to the differential output voltage to provide DC-offset cancellation. A differential equalization voltage is applied to the differential output voltage to provide DFE equalization. A timing scheme employing multiple clocks provides reduced sampling-window width and increased output-signal width. Cross-coupled transistors are used to cancel kickback noise received at the differential output nodes.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Applicant: LSI CORPORATION
    Inventors: Yehui Sun, Zhuo Gao, Lijun Li, Freeman Y. Zhong
  • Publication number: 20140155351
    Abstract: Disclosed herein are a process or method for the preparation of prasugrel and several novel crystalline forms of prasugrel hydrochloride. The process comprises preparation of prasugrel by acetylation in solvents which have low boiling point and/or low toxicity, and the process not only avoids using solvents which have high boiling point and/or high toxicity such as toluene, acetonitrile and so on, but also resolves the problem about thermal instability of prasugrel, and the loss of prasugrel is reduced, as well as the yield is raised. The yield of prasugrel is higher than 85% and the purity is higher than 99.5%. The process can prepare prasugrel and its pharmaceutically acceptable salts. The novel crystalline forms of prasugrel hydrochloride are crystalline form H1, H2 and H3, and their performance in oral absorbability, activating metabolism and inhibiting platelet aggregation is excellent.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 5, 2014
    Applicants: YICHANG CHANGJIANG PHARMACEUTICAL CO., LTD, SUNSHINE LAKE PHARMA CO., LTD
    Inventors: Lijun Li, Hailong Wang, Zhongqing Wang
  • Patent number: 8538274
    Abstract: An optical relay system is provided, which includes a first optical signal distribution device (101), a phase detection device (103), an amplitude regeneration device (102), and a phase regeneration and load device (104). An optical relay method is further provided, which includes the following steps. A received input signal is divided into two paths; phase information of one path of the input signal is extracted, and is converted to an amplitude modulated signal; an amplitude of the other path of the input signal is restored, so as to generate an amplitude regenerated signal; a phase is loaded on the amplitude regenerated signal by using the amplitude modulated signal, so as to generate a phase regenerated signal. The system and method eliminate a phase noise of the signal in a transmission process, improve a transmission performance of the signal, and realize a simple implementation method.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: September 17, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lijun Li, Qianjin Xiong
  • Patent number: 8229298
    Abstract: The present invention discloses a method for detecting dispersion, overcoming disadvantages of complex configuration and insensitivity to a tiny dispersion of the method and device for detecting dispersion in the prior art. The inventive method includes: obtaining a signal within a predetermined bandwidth range from an optical signal received; obtaining an operated value of power via an operation on the signal within the predetermined bandwidth range; and obtaining amount of system dispersion according to a corresponding relation between the operated value of power and the amount of system dispersion. A device for detecting dispersion is disclosed, including a photoelectric filter operational unit and a processing unit, where an output of the photoelectric filter operational unit is connected to an input of the processing unit. The device for detecting dispersion of the present invention is applicable to an adaptive dispersion compensation system. An optical signal transmission system is further disclosed.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: July 24, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yue Liu, Lijun Li, Zhihui Tao, Wei Fu
  • Patent number: 8229299
    Abstract: The present invention discloses a method for detecting dispersion, overcoming disadvantages of complex configuration and insensitivity to a tiny dispersion of the method and device for detecting dispersion in the prior art. The inventive method includes: obtaining a signal within a predetermined bandwidth range from an optical signal received; obtaining an operated value of power via an operation on the signal within the predetermined bandwidth range; and obtaining amount of system dispersion according to a corresponding relation between the operated value of power and the amount of system dispersion. A device for detecting dispersion is disclosed, including a photoelectric filter operational unit and a processing unit, where an output of the photoelectric filter operational unit is connected to an input of the processing unit. The device for detecting dispersion of the present invention is applicable to an adaptive dispersion compensation system. An optical signal transmission system is further disclosed.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: July 24, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yue Liu, Lijun Li, Zhihui Tao, Wei Fu
  • Publication number: 20120027406
    Abstract: The present invention discloses a method for detecting dispersion, overcoming disadvantages of complex configuration and insensitivity to a tiny dispersion of the method and device for detecting dispersion in the prior art. The inventive method includes: obtaining a signal within a predetermined bandwidth range from an optical signal received; obtaining an operated value of power via an operation on the signal within the predetermined bandwidth range; and obtaining amount of system dispersion according to a corresponding relation between the operated value of power and the amount of system dispersion. A device for detecting dispersion is disclosed, including a photoelectric filter operational unit and a processing unit, where an output of the photoelectric filter operational unit is connected to an input of the processing unit. The device for detecting dispersion of the present invention is applicable to an adaptive dispersion compensation system. An optical signal transmission system is further disclosed.
    Type: Application
    Filed: October 5, 2011
    Publication date: February 2, 2012
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Yue LIU, Lijun LI, Zhihui TAO, Wei FU
  • Publication number: 20110158654
    Abstract: A differential quadrature phase shift keying (DQPSK) system, method, and device are disclosed. The DQPSK system includes: a transmitter, configured to: pre-code an input first signal and second signal, and generate an in-phase signal and a quadrature signal; modulate the in-phase signal to generate a first differential phase shift keying (DPSK) signal, and modulate the quadrature signal to generate a second DPSK signal; perform a 90 degree phase shift on the first DPSK signal or the second DPSK signal, and interfere with the other DPSK signal to obtain a DQPSK signal; and send the DQPSK signal to a receiver; the receiver, configured to: demodulate the DQPSK signal sent from the transmitter in detuned filter mode, and restore the first signal and the second signal through optical/electrical (o/E) conversion.
    Type: Application
    Filed: December 30, 2010
    Publication date: June 30, 2011
    Inventors: Xinliang ZHANG, Yu YU, Lun WEI, Lijun LI
  • Publication number: 20100247111
    Abstract: An optical relay system is provided, which includes a first optical signal distribution device (101), a phase detection device (103), an amplitude regeneration device (102), and a phase regeneration and load device (104). An optical relay method is further provided, which includes the following steps. A received input signal is divided into two paths; phase information of one path of the input signal is extracted, and is converted to an amplitude modulated signal; an amplitude of the other path of the input signal is restored, so as to generate an amplitude regenerated signal; a phase is loaded on the amplitude regenerated signal by using the amplitude modulated signal, so as to generate a phase regenerated signal. The system and method eliminate a phase noise of the signal in a transmission process, improve a transmission performance of the signal, and realize a simple implementation method.
    Type: Application
    Filed: June 14, 2010
    Publication date: September 30, 2010
    Inventors: Lijun Li, Qianjin Xiong
  • Publication number: 20090127443
    Abstract: The present invention discloses a method for detecting dispersion, overcoming disadvantages of complex configuration and insensitivity to a tiny dispersion of the method and device for detecting dispersion in the prior art. The inventive method includes: obtaining a signal within a predetermined bandwidth range from an optical signal received; obtaining an operated value of power via an operation on the signal within the predetermined bandwidth range; and obtaining amount of system dispersion according to a corresponding relation between the operated value of power and the amount of system dispersion. A device for detecting dispersion is disclosed, including a photoelectric filter operational unit and a processing unit, where an output of the photoelectric filter operational unit is connected to an input of the processing unit. The device for detecting dispersion of the present invention is applicable to an adaptive dispersion compensation system. An optical signal transmission system is further disclosed.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 21, 2009
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yue LIU, Lijun LI, Zhihui TAO, Wei FU
  • Publication number: 20050210110
    Abstract: A portable information terminal performs current position detection by detecting the current position of a user based on position information received from an artificial satellite and position information received from a base station; A position information URL indicative of the current position detected by the current position detection is acquired from a host computer; A processing of writing and editing mail is carried out; and the position information URL is inserted into the mail text being edited as position information, A plurality of tasks can be processed simultaneously; for example, the processing of the current position detection and the processing of the URL acquisition each consist of two or more tasks, and mail is written and edited in response to the operation of a user during the processing of these tasks.
    Type: Application
    Filed: July 29, 2004
    Publication date: September 22, 2005
    Inventor: Lijun Li